docs/gst/html/gstreamer-GstInfo.html - mtk-gstreamer-debian - Git at Google

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                   <a href="#gstreamer-GstInfo.description" class="shortcut">Description</a></span>
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 <h2><span class="refentrytitle"><a name="gstreamer-GstInfo.top_of_page"></a>GstInfo</span></h2>
 <p>GstInfo — Debugging and logging facilities</p>
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 <div class="refsect1">
 <a name="gstreamer-GstInfo.functions"></a><h2>Functions</h2>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="functions_return">
 <col class="functions_name">
 </colgroup>
 <tbody>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-STR-NULL:CAPS" title="GST_STR_NULL()">GST_STR_NULL</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-PAD-NAME:CAPS" title="GST_DEBUG_PAD_NAME()">GST_DEBUG_PAD_NAME</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <span class="c_punctuation">(</span><a class="link" href="gstreamer-GstInfo.html#GstLogFunction" title="GstLogFunction ()">*GstLogFunction</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-log" title="gst_debug_log ()">gst_debug_log</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-log-valist" title="gst_debug_log_valist ()">gst_debug_log_valist</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-message-get" title="gst_debug_message_get ()">gst_debug_message_get</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-log-default" title="gst_debug_log_default ()">gst_debug_log_default</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-level-get-name" title="gst_debug_level_get_name ()">gst_debug_level_get_name</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-add-log-function" title="gst_debug_add_log_function ()">gst_debug_add_log_function</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-remove-log-function" title="gst_debug_remove_log_function ()">gst_debug_remove_log_function</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-remove-log-function-by-data" title="gst_debug_remove_log_function_by_data ()">gst_debug_remove_log_function_by_data</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-set-active" title="gst_debug_set_active ()">gst_debug_set_active</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-is-active" title="gst_debug_is_active ()">gst_debug_is_active</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-set-colored" title="gst_debug_set_colored ()">gst_debug_set_colored</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-set-color-mode" title="gst_debug_set_color_mode ()">gst_debug_set_color_mode</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-set-color-mode-from-string" title="gst_debug_set_color_mode_from_string ()">gst_debug_set_color_mode_from_string</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-is-colored" title="gst_debug_is_colored ()">gst_debug_is_colored</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <a class="link" href="gstreamer-GstInfo.html#GstDebugColorMode" title="enum GstDebugColorMode"><span class="returnvalue">GstDebugColorMode</span></a>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-get-color-mode" title="gst_debug_get_color_mode ()">gst_debug_get_color_mode</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-set-default-threshold" title="gst_debug_set_default_threshold ()">gst_debug_set_default_threshold</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-set-threshold-from-string" title="gst_debug_set_threshold_from_string ()">gst_debug_set_threshold_from_string</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel"><span class="returnvalue">GstDebugLevel</span></a>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-get-default-threshold" title="gst_debug_get_default_threshold ()">gst_debug_get_default_threshold</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-set-threshold-for-name" title="gst_debug_set_threshold_for_name ()">gst_debug_set_threshold_for_name</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-unset-threshold-for-name" title="gst_debug_unset_threshold_for_name ()">gst_debug_unset_threshold_for_name</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-CATEGORY:CAPS" title="GST_DEBUG_CATEGORY()">GST_DEBUG_CATEGORY</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-CATEGORY-EXTERN:CAPS" title="GST_DEBUG_CATEGORY_EXTERN()">GST_DEBUG_CATEGORY_EXTERN</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-CATEGORY-STATIC:CAPS" title="GST_DEBUG_CATEGORY_STATIC()">GST_DEBUG_CATEGORY_STATIC</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-CATEGORY-INIT:CAPS" title="GST_DEBUG_CATEGORY_INIT()">GST_DEBUG_CATEGORY_INIT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-CATEGORY-GET:CAPS" title="GST_DEBUG_CATEGORY_GET()">GST_DEBUG_CATEGORY_GET</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-category-free" title="gst_debug_category_free ()">gst_debug_category_free</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-category-set-threshold" title="gst_debug_category_set_threshold ()">gst_debug_category_set_threshold</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-category-reset-threshold" title="gst_debug_category_reset_threshold ()">gst_debug_category_reset_threshold</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel"><span class="returnvalue">GstDebugLevel</span></a>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-category-get-threshold" title="gst_debug_category_get_threshold ()">gst_debug_category_get_threshold</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-category-get-name" title="gst_debug_category_get_name ()">gst_debug_category_get_name</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-category-get-color" title="gst_debug_category_get_color ()">gst_debug_category_get_color</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-category-get-description" title="gst_debug_category_get_description ()">gst_debug_category_get_description</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <a href="/usr/share/gtk-doc/html/glibglib-Singly-Linked-Lists.html#GSList"><span class="returnvalue">GSList</span></a> *
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-get-all-categories" title="gst_debug_get_all_categories ()">gst_debug_get_all_categories</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-construct-term-color" title="gst_debug_construct_term_color ()">gst_debug_construct_term_color</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-construct-win-color" title="gst_debug_construct_win_color ()">gst_debug_construct_win_color</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-LEVEL-LOG:CAPS" title="GST_CAT_LEVEL_LOG()">GST_CAT_LEVEL_LOG</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-ERROR-OBJECT:CAPS" title="GST_CAT_ERROR_OBJECT()">GST_CAT_ERROR_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-WARNING-OBJECT:CAPS" title="GST_CAT_WARNING_OBJECT()">GST_CAT_WARNING_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-INFO-OBJECT:CAPS" title="GST_CAT_INFO_OBJECT()">GST_CAT_INFO_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-DEBUG-OBJECT:CAPS" title="GST_CAT_DEBUG_OBJECT()">GST_CAT_DEBUG_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-LOG-OBJECT:CAPS" title="GST_CAT_LOG_OBJECT()">GST_CAT_LOG_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-FIXME-OBJECT:CAPS" title="GST_CAT_FIXME_OBJECT()">GST_CAT_FIXME_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-TRACE-OBJECT:CAPS" title="GST_CAT_TRACE_OBJECT()">GST_CAT_TRACE_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-MEMDUMP-OBJECT:CAPS" title="GST_CAT_MEMDUMP_OBJECT()">GST_CAT_MEMDUMP_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-ERROR:CAPS" title="GST_CAT_ERROR()">GST_CAT_ERROR</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-WARNING:CAPS" title="GST_CAT_WARNING()">GST_CAT_WARNING</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-INFO:CAPS" title="GST_CAT_INFO()">GST_CAT_INFO</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-DEBUG:CAPS" title="GST_CAT_DEBUG()">GST_CAT_DEBUG</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-LOG:CAPS" title="GST_CAT_LOG()">GST_CAT_LOG</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-FIXME:CAPS" title="GST_CAT_FIXME()">GST_CAT_FIXME</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-TRACE:CAPS" title="GST_CAT_TRACE()">GST_CAT_TRACE</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-MEMDUMP:CAPS" title="GST_CAT_MEMDUMP()">GST_CAT_MEMDUMP</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-ERROR-OBJECT:CAPS" title="GST_ERROR_OBJECT()">GST_ERROR_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-WARNING-OBJECT:CAPS" title="GST_WARNING_OBJECT()">GST_WARNING_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-INFO-OBJECT:CAPS" title="GST_INFO_OBJECT()">GST_INFO_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-OBJECT:CAPS" title="GST_DEBUG_OBJECT()">GST_DEBUG_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-LOG-OBJECT:CAPS" title="GST_LOG_OBJECT()">GST_LOG_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-FIXME-OBJECT:CAPS" title="GST_FIXME_OBJECT()">GST_FIXME_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-TRACE-OBJECT:CAPS" title="GST_TRACE_OBJECT()">GST_TRACE_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-MEMDUMP-OBJECT:CAPS" title="GST_MEMDUMP_OBJECT()">GST_MEMDUMP_OBJECT</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-ERROR:CAPS" title="GST_ERROR()">GST_ERROR</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-WARNING:CAPS" title="GST_WARNING()">GST_WARNING</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-INFO:CAPS" title="GST_INFO()">GST_INFO</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG:CAPS" title="GST_DEBUG()">GST_DEBUG</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-LOG:CAPS" title="GST_LOG()">GST_LOG</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-FIXME:CAPS" title="GST_FIXME()">GST_FIXME</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-TRACE:CAPS" title="GST_TRACE()">GST_TRACE</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-MEMDUMP:CAPS" title="GST_MEMDUMP()">GST_MEMDUMP</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-REGISTER-FUNCPTR:CAPS" title="GST_DEBUG_REGISTER_FUNCPTR()">GST_DEBUG_REGISTER_FUNCPTR</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-FUNCPTR:CAPS" title="GST_DEBUG_FUNCPTR()">GST_DEBUG_FUNCPTR</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-FUNCPTR-NAME:CAPS" title="GST_DEBUG_FUNCPTR_NAME()">GST_DEBUG_FUNCPTR_NAME</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-BIN-TO-DOT-FILE:CAPS" title="GST_DEBUG_BIN_TO_DOT_FILE()">GST_DEBUG_BIN_TO_DOT_FILE</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-BIN-TO-DOT-FILE-WITH-TS:CAPS" title="GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS()">GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-print-stack-trace" title="gst_debug_print_stack_trace ()">gst_debug_print_stack_trace</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-TIME-ARGS:CAPS" title="GST_TIME_ARGS()">GST_TIME_ARGS</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#GST-STIME-ARGS:CAPS" title="GST_STIME_ARGS()">GST_STIME_ARGS</a><span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-bin-to-dot-data" title="gst_debug_bin_to_dot_data ()">gst_debug_bin_to_dot_data</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-bin-to-dot-file" title="gst_debug_bin_to_dot_file ()">gst_debug_bin_to_dot_file</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <span class="returnvalue">void</span>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-bin-to-dot-file-with-ts" title="gst_debug_bin_to_dot_file_with_ts ()">gst_debug_bin_to_dot_file_with_ts</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-info-vasprintf" title="gst_info_vasprintf ()">gst_info_vasprintf</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-info-strdup-vprintf" title="gst_info_strdup_vprintf ()">gst_info_strdup_vprintf</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 <tr>
 <td class="function_type">
 <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 </td>
 <td class="function_name">
 <a class="link" href="gstreamer-GstInfo.html#gst-info-strdup-printf" title="gst_info_strdup_printf ()">gst_info_strdup_printf</a> <span class="c_punctuation">()</span>
 </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <div class="refsect1">
 <a name="gstreamer-GstInfo.other"></a><h2>Types and Values</h2>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="name">
 <col class="description">
 </colgroup>
 <tbody>
 <tr>
 <td class="datatype_keyword">enum</td>
 <td class="function_name"><a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel">GstDebugLevel</a></td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name"><a class="link" href="gstreamer-GstInfo.html#GST-LEVEL-DEFAULT:CAPS" title="GST_LEVEL_DEFAULT">GST_LEVEL_DEFAULT</a></td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name"><a class="link" href="gstreamer-GstInfo.html#GST-LEVEL-MAX:CAPS" title="GST_LEVEL_MAX">GST_LEVEL_MAX</a></td>
 </tr>
 <tr>
 <td class="datatype_keyword">enum</td>
 <td class="function_name"><a class="link" href="gstreamer-GstInfo.html#GstDebugColorFlags" title="enum GstDebugColorFlags">GstDebugColorFlags</a></td>
 </tr>
 <tr>
 <td class="datatype_keyword">enum</td>
 <td class="function_name"><a class="link" href="gstreamer-GstInfo.html#GstDebugColorMode" title="enum GstDebugColorMode">GstDebugColorMode</a></td>
 </tr>
 <tr>
 <td class="datatype_keyword">struct</td>
 <td class="function_name"><a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory">GstDebugCategory</a></td>
 </tr>
 <tr>
 <td class="datatype_keyword">enum</td>
 <td class="function_name"><a class="link" href="gstreamer-GstInfo.html#GstDebugGraphDetails" title="enum GstDebugGraphDetails">GstDebugGraphDetails</a></td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name"><a class="link" href="gstreamer-GstInfo.html#GST-FUNCTION:CAPS" title="GST_FUNCTION">GST_FUNCTION</a></td>
 </tr>
 <tr>
 <td class="variable_type">extern</td>
 <td class="function_name"><a class="link" href="gstreamer-GstInfo.html#GST-CAT-DEFAULT:CAPS" title="GST_CAT_DEFAULT">GST_CAT_DEFAULT</a></td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name"><a class="link" href="gstreamer-GstInfo.html#GST-TIME-FORMAT:CAPS" title="GST_TIME_FORMAT">GST_TIME_FORMAT</a></td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name"><a class="link" href="gstreamer-GstInfo.html#GST-STIME-FORMAT:CAPS" title="GST_STIME_FORMAT">GST_STIME_FORMAT</a></td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name"><a class="link" href="gstreamer-GstInfo.html#GST-PTR-FORMAT:CAPS" title="GST_PTR_FORMAT">GST_PTR_FORMAT</a></td>
 </tr>
 <tr>
 <td class="define_keyword">#define</td>
 <td class="function_name"><a class="link" href="gstreamer-GstInfo.html#GST-SEGMENT-FORMAT:CAPS" title="GST_SEGMENT_FORMAT">GST_SEGMENT_FORMAT</a></td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <div class="refsect1">
 <a name="gstreamer-GstInfo.includes"></a><h2>Includes</h2>
 <pre class="synopsis">#include &lt;gst/gst.h&gt;
 </pre>
 </div>
 <div class="refsect1">
 <a name="gstreamer-GstInfo.description"></a><h2>Description</h2>
 <p>GStreamer's debugging subsystem is an easy way to get information about what
 the application is doing.  It is not meant for programming errors. Use GLib
 methods (g_warning and friends) for that.</p>
 <p>The debugging subsystem works only after GStreamer has been initialized</p>
 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>for example by calling <a class="link" href="gstreamer-Gst.html#gst-init" title="gst_init ()"><code class="function">gst_init()</code></a>.</p></li></ul></div>
 <p>The debugging subsystem is used to log informational messages while the
 application runs.  Each messages has some properties attached to it. Among
 these properties are the debugging category, the severity (called "level"
 here) and an optional <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> it belongs to. Each of these messages is sent
 to all registered debugging handlers, which then handle the messages.
 GStreamer attaches a default handler on startup, which outputs requested
 messages to stderr.</p>
 <p>Messages are output by using shortcut macros like <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG:CAPS" title="GST_DEBUG()"><span class="type">GST_DEBUG</span></a>,
 <a class="link" href="gstreamer-GstInfo.html#GST-CAT-ERROR-OBJECT:CAPS" title="GST_CAT_ERROR_OBJECT()"><span class="type">GST_CAT_ERROR_OBJECT</span></a> or similar. These all expand to calling <a class="link" href="gstreamer-GstInfo.html#gst-debug-log" title="gst_debug_log ()"><code class="function">gst_debug_log()</code></a>
 with the right parameters.
 The only thing a developer will probably want to do is define his own
 categories. This is easily done with 3 lines. At the top of your code,
 declare
 the variables and set the default category.</p>
 <div class="informalexample">
   <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
     <tbody>
       <tr>
         <td class="listing_lines" align="right"><pre>1
 2</pre></td>
         <td class="listing_code"><pre class="programlisting"><span class="function"><a href="gstreamer-GstInfo.html#GST-DEBUG-CATEGORY-STATIC:CAPS">GST_DEBUG_CATEGORY_STATIC</a></span> <span class="gtkdoc opt">(</span>my_category<span class="gtkdoc opt">);</span>  <span class="gtkdoc slc">// define category (statically)</span>
 <span class="gtkdoc ppc">#define GST_CAT_DEFAULT my_category</span>       <span class="gtkdoc slc">// set as default</span><span class="gtkdoc ppc"></span></pre></td>
       </tr>
     </tbody>
   </table>
 </div>

 <p>
 After that you only need to initialize the category.</p>
 <div class="informalexample">
   <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
     <tbody>
       <tr>
         <td class="listing_lines" align="right"><pre>1
 2</pre></td>
         <td class="listing_code"><pre class="programlisting"><span class="function"><a href="gstreamer-GstInfo.html#GST-DEBUG-CATEGORY-INIT:CAPS">GST_DEBUG_CATEGORY_INIT</a></span> <span class="gtkdoc opt">(</span>my_category<span class="gtkdoc opt">,</span> <span class="string">&quot;my category&quot;</span><span class="gtkdoc opt">,</span>
                          <span class="number">0</span><span class="gtkdoc opt">,</span> <span class="string">&quot;This is my very own&quot;</span><span class="gtkdoc opt">);</span></pre></td>
       </tr>
     </tbody>
   </table>
 </div>

 <p>
 Initialization must be done before the category is used first.
 Plugins do this
 in their plugin_init function, libraries and applications should do that
 during their initialization.</p>
 <p>The whole debugging subsystem can be disabled at build time with passing the
 --disable-gst-debug switch to configure. If this is done, every function,
 macro and even structs described in this file evaluate to default values or
 nothing at all.
 So don't take addresses of these functions or use other tricks.
 If you must do that for some reason, there is still an option.
 If the debugging
 subsystem was compiled out, <a class="link" href="gstreamer-GstConfig.html#GST-DISABLE-GST-DEBUG:CAPS" title="GST_DISABLE_GST_DEBUG"><span class="type">GST_DISABLE_GST_DEBUG</span></a> is defined in
 &lt;gst/gst.h&gt;,
 so you can check that before doing your trick.
 Disabling the debugging subsystem will give you a slight (read: unnoticeable)
 speed increase and will reduce the size of your compiled code. The GStreamer
 library itself becomes around 10% smaller.</p>
 <p>Please note that there are naming conventions for the names of debugging
 categories. These are explained at <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-CATEGORY-INIT:CAPS" title="GST_DEBUG_CATEGORY_INIT()"><code class="function">GST_DEBUG_CATEGORY_INIT()</code></a>.</p>
 </div>
 <div class="refsect1">
 <a name="gstreamer-GstInfo.functions_details"></a><h2>Functions</h2>
 <div class="refsect2">
 <a name="GST-STR-NULL:CAPS"></a><h3>GST_STR_NULL()</h3>
 <pre class="programlisting">#define GST_STR_NULL(str) ((str) ? (str) : "(NULL)")
 </pre>
 <p>Macro to use when a string must not be <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>, but may be <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. If the string
 is <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>, "(NULL)" is printed instead.
 In GStreamer printf string arguments may not be <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>, because on some
 platforms (ie Solaris) the libc crashes in that case. This includes debugging
 strings.</p>
 <div class="refsect3">
 <a name="GST-STR-NULL.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>str</p></td>
 <td class="parameter_description"><p> The string to check. </p></td>
 <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-DEBUG-PAD-NAME:CAPS"></a><h3>GST_DEBUG_PAD_NAME()</h3>
 <pre class="programlisting">#define             GST_DEBUG_PAD_NAME(pad)</pre>
 <p>Evaluates to 2 strings, that describe the pad. Often used in debugging
 statements.</p>
 <div class="refsect3">
 <a name="GST-DEBUG-PAD-NAME.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>pad</p></td>
 <td class="parameter_description"><p>The pad to debug.</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GstLogFunction"></a><h3>GstLogFunction ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 <span class="c_punctuation">(</span>*GstLogFunction<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> *category</code></em>,
                    <em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel"><span class="type">GstDebugLevel</span></a> level</code></em>,
                    <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *file</code></em>,
                    <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *function</code></em>,
                    <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a> line</code></em>,
                    <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> *object</code></em>,
                    <em class="parameter"><code><span class="type">GstDebugMessage</span> *message</code></em>,
                    <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
 <p>Function prototype for a logging function that can be registered with
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-add-log-function" title="gst_debug_add_log_function ()"><code class="function">gst_debug_add_log_function()</code></a>.
 Use G_GNUC_NO_INSTRUMENT on that function.</p>
 <div class="refsect3">
 <a name="GstLogFunction.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>category</p></td>
 <td class="parameter_description"><p>a <a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a></p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>level</p></td>
 <td class="parameter_description"><p>a <a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel"><span class="type">GstDebugLevel</span></a></p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>file</p></td>
 <td class="parameter_description"><p>file name</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>function</p></td>
 <td class="parameter_description"><p>function name</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>line</p></td>
 <td class="parameter_description"><p>line number</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>object</p></td>
 <td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a></p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>message</p></td>
 <td class="parameter_description"><p>the message</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>user_data</p></td>
 <td class="parameter_description"><p>user data for the log function</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-log"></a><h3>gst_debug_log ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_log (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> *category</code></em>,
                <em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel"><span class="type">GstDebugLevel</span></a> level</code></em>,
                <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *file</code></em>,
                <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *function</code></em>,
                <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a> line</code></em>,
                <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> *object</code></em>,
                <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *format</code></em>,
                <em class="parameter"><code>...</code></em>);</pre>
 <p>Logs the given message using the currently registered debugging handlers.</p>
 <div class="refsect3">
 <a name="gst-debug-log.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>category</p></td>
 <td class="parameter_description"><p>category to log</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>level</p></td>
 <td class="parameter_description"><p>level of the message is in</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>file</p></td>
 <td class="parameter_description"><p>the file that emitted the message, usually the __FILE__ identifier</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>function</p></td>
 <td class="parameter_description"><p>the function that emitted the message</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>line</p></td>
 <td class="parameter_description"><p>the line from that the message was emitted, usually __LINE__</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>object</p></td>
 <td class="parameter_description"><p> the object this message relates to,
 or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if none. </p></td>
 <td class="parameter_annotations"><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 </tr>
 <tr>
 <td class="parameter_name"><p>format</p></td>
 <td class="parameter_description"><p>a printf style format string</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>optional arguments for the format</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-log-valist"></a><h3>gst_debug_log_valist ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_log_valist (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> *category</code></em>,
                       <em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel"><span class="type">GstDebugLevel</span></a> level</code></em>,
                       <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *file</code></em>,
                       <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *function</code></em>,
                       <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a> line</code></em>,
                       <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> *object</code></em>,
                       <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *format</code></em>,
                       <em class="parameter"><code><span class="type">va_list</span> args</code></em>);</pre>
 <p>Logs the given message using the currently registered debugging handlers.</p>
 <div class="refsect3">
 <a name="gst-debug-log-valist.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>category</p></td>
 <td class="parameter_description"><p>category to log</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>level</p></td>
 <td class="parameter_description"><p>level of the message is in</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>file</p></td>
 <td class="parameter_description"><p>the file that emitted the message, usually the __FILE__ identifier</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>function</p></td>
 <td class="parameter_description"><p>the function that emitted the message</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>line</p></td>
 <td class="parameter_description"><p>the line from that the message was emitted, usually __LINE__</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>object</p></td>
 <td class="parameter_description"><p> the object this message relates to,
 or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if none. </p></td>
 <td class="parameter_annotations"><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 </tr>
 <tr>
 <td class="parameter_name"><p>format</p></td>
 <td class="parameter_description"><p>a printf style format string</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>args</p></td>
 <td class="parameter_description"><p>optional arguments for the format</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-message-get"></a><h3>gst_debug_message_get ()</h3>
 <pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 gst_debug_message_get (<em class="parameter"><code><span class="type">GstDebugMessage</span> *message</code></em>);</pre>
 <p>Gets the string representation of a <span class="type">GstDebugMessage</span>. This function is used
 in debug handlers to extract the message.</p>
 <div class="refsect3">
 <a name="gst-debug-message-get.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>message</p></td>
 <td class="parameter_description"><p>a debug message</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 <div class="refsect3">
 <a name="gst-debug-message-get.returns"></a><h4>Returns</h4>
 <p> the string representation of a <span class="type">GstDebugMessage</span>.</p>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-log-default"></a><h3>gst_debug_log_default ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_log_default (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> *category</code></em>,
                        <em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel"><span class="type">GstDebugLevel</span></a> level</code></em>,
                        <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *file</code></em>,
                        <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *function</code></em>,
                        <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="type">gint</span></a> line</code></em>,
                        <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> *object</code></em>,
                        <em class="parameter"><code><span class="type">GstDebugMessage</span> *message</code></em>,
                        <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
 <p>The default logging handler used by GStreamer. Logging functions get called
 whenever a macro like GST_DEBUG or similar is used. By default this function
 is setup to output the message and additional info to stderr (or the log file
 specified via the GST_DEBUG_FILE environment variable) as received via
 <em class="parameter"><code>user_data</code></em>
 .</p>
 <p>You can add other handlers by using <a class="link" href="gstreamer-GstInfo.html#gst-debug-add-log-function" title="gst_debug_add_log_function ()"><code class="function">gst_debug_add_log_function()</code></a>.
 And you can remove this handler by calling
 gst_debug_remove_log_function(gst_debug_log_default);</p>
 <div class="refsect3">
 <a name="gst-debug-log-default.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>category</p></td>
 <td class="parameter_description"><p>category to log</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>level</p></td>
 <td class="parameter_description"><p>level of the message</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>file</p></td>
 <td class="parameter_description"><p>the file that emitted the message, usually the __FILE__ identifier</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>function</p></td>
 <td class="parameter_description"><p>the function that emitted the message</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>line</p></td>
 <td class="parameter_description"><p>the line from that the message was emitted, usually __LINE__</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>message</p></td>
 <td class="parameter_description"><p>the actual message</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>object</p></td>
 <td class="parameter_description"><p> the object this message relates to,
 or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if none. </p></td>
 <td class="parameter_annotations"><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 </tr>
 <tr>
 <td class="parameter_name"><p>user_data</p></td>
 <td class="parameter_description"><p>the FILE* to log to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-level-get-name"></a><h3>gst_debug_level_get_name ()</h3>
 <pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 gst_debug_level_get_name (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel"><span class="type">GstDebugLevel</span></a> level</code></em>);</pre>
 <p>Get the string representation of a debugging level</p>
 <div class="refsect3">
 <a name="gst-debug-level-get-name.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>level</p></td>
 <td class="parameter_description"><p>the level to get the name for</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 <div class="refsect3">
 <a name="gst-debug-level-get-name.returns"></a><h4>Returns</h4>
 <p> the name</p>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-add-log-function"></a><h3>gst_debug_add_log_function ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_add_log_function (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstLogFunction" title="GstLogFunction ()"><span class="type">GstLogFunction</span></a> func</code></em>,
                             <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>,
                             <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> notify</code></em>);</pre>
 <p>Adds the logging function to the list of logging functions.
 Be sure to use <a href="/usr/share/gtk-doc/html/glibglib-Miscellaneous-Macros.html#G-GNUC-NO-INSTRUMENT:CAPS"><span class="type">G_GNUC_NO_INSTRUMENT</span></a> on that function, it is needed.</p>
 <div class="refsect3">
 <a name="gst-debug-add-log-function.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>func</p></td>
 <td class="parameter_description"><p>the function to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>user_data</p></td>
 <td class="parameter_description"><p>user data</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>notify</p></td>
 <td class="parameter_description"><p>called when <em class="parameter"><code>user_data</code></em>
 is not used anymore</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-remove-log-function"></a><h3>gst_debug_remove_log_function ()</h3>
 <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
 gst_debug_remove_log_function (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstLogFunction" title="GstLogFunction ()"><span class="type">GstLogFunction</span></a> func</code></em>);</pre>
 <p>Removes all registered instances of the given logging functions.</p>
 <div class="refsect3">
 <a name="gst-debug-remove-log-function.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>func</p></td>
 <td class="parameter_description"><p> the log function to remove, or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> to
 remove the default log function. </p></td>
 <td class="parameter_annotations"><span class="annotation">[<acronym title="The callback is valid only during the call to the method."><span class="acronym">scope call</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 </tr></tbody>
 </table></div>
 </div>
 <div class="refsect3">
 <a name="gst-debug-remove-log-function.returns"></a><h4>Returns</h4>
 <p> How many instances of the function were removed</p>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-remove-log-function-by-data"></a><h3>gst_debug_remove_log_function_by_data ()</h3>
 <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
 gst_debug_remove_log_function_by_data (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre>
 <p>Removes all registered instances of log functions with the given user data.</p>
 <div class="refsect3">
 <a name="gst-debug-remove-log-function-by-data.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>data</p></td>
 <td class="parameter_description"><p>user data of the log function to remove</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 <div class="refsect3">
 <a name="gst-debug-remove-log-function-by-data.returns"></a><h4>Returns</h4>
 <p> How many instances of the function were removed</p>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-set-active"></a><h3>gst_debug_set_active ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_set_active (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> active</code></em>);</pre>
 <p>If activated, debugging messages are sent to the debugging
 handlers.
 It makes sense to deactivate it for speed issues.</p>
 <div class="note"><p>This function is not threadsafe. It makes sense to only call it
 during initialization.</p></div>
 <div class="refsect3">
 <a name="gst-debug-set-active.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>active</p></td>
 <td class="parameter_description"><p>Whether to use debugging output or not</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-is-active"></a><h3>gst_debug_is_active ()</h3>
 <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
 gst_debug_is_active (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
 <p>Checks if debugging output is activated.</p>
 <div class="refsect3">
 <a name="gst-debug-is-active.returns"></a><h4>Returns</h4>
 <p> <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, if debugging is activated</p>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-set-colored"></a><h3>gst_debug_set_colored ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_set_colored (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> colored</code></em>);</pre>
 <p>Sets or unsets the use of coloured debugging output.
 Same as <a class="link" href="gstreamer-GstInfo.html#gst-debug-set-color-mode" title="gst_debug_set_color_mode ()"><code class="function">gst_debug_set_color_mode()</code></a> with the argument being
 being GST_DEBUG_COLOR_MODE_ON or GST_DEBUG_COLOR_MODE_OFF.</p>
 <p>This function may be called before <a class="link" href="gstreamer-Gst.html#gst-init" title="gst_init ()"><code class="function">gst_init()</code></a>.</p>
 <div class="refsect3">
 <a name="gst-debug-set-colored.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>colored</p></td>
 <td class="parameter_description"><p>Whether to use colored output or not</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-set-color-mode"></a><h3>gst_debug_set_color_mode ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_set_color_mode (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugColorMode" title="enum GstDebugColorMode"><span class="type">GstDebugColorMode</span></a> mode</code></em>);</pre>
 <p>Changes the coloring mode for debug output.</p>
 <p>This function may be called before <a class="link" href="gstreamer-Gst.html#gst-init" title="gst_init ()"><code class="function">gst_init()</code></a>.</p>
 <div class="refsect3">
 <a name="gst-debug-set-color-mode.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>mode</p></td>
 <td class="parameter_description"><p>The coloring mode for debug output. See <em class="parameter"><code>GstDebugColorMode</code></em>
 .</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 <p class="since">Since: <a class="link" href="ix08.html#api-index-1.2">1.2</a></p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-set-color-mode-from-string"></a><h3>gst_debug_set_color_mode_from_string ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_set_color_mode_from_string (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *mode</code></em>);</pre>
 <p>Changes the coloring mode for debug output.</p>
 <p>This function may be called before <a class="link" href="gstreamer-Gst.html#gst-init" title="gst_init ()"><code class="function">gst_init()</code></a>.</p>
 <div class="refsect3">
 <a name="gst-debug-set-color-mode-from-string.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>mode</p></td>
 <td class="parameter_description"><p>The coloring mode for debug output. One of the following:
 "on", "auto", "off", "disable", "unix".</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 <p class="since">Since: <a class="link" href="ix08.html#api-index-1.2">1.2</a></p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-is-colored"></a><h3>gst_debug_is_colored ()</h3>
 <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
 gst_debug_is_colored (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
 <p>Checks if the debugging output should be colored.</p>
 <div class="refsect3">
 <a name="gst-debug-is-colored.returns"></a><h4>Returns</h4>
 <p> <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, if the debug output should be colored.</p>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-get-color-mode"></a><h3>gst_debug_get_color_mode ()</h3>
 <pre class="programlisting"><a class="link" href="gstreamer-GstInfo.html#GstDebugColorMode" title="enum GstDebugColorMode"><span class="returnvalue">GstDebugColorMode</span></a>
 gst_debug_get_color_mode (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
 <p>Changes the coloring mode for debug output.</p>
 <div class="refsect3">
 <a name="gst-debug-get-color-mode.returns"></a><h4>Returns</h4>
 <p> see <em class="parameter"><code>GstDebugColorMode</code></em>
 for possible values.</p>
 </div>
 <p class="since">Since: <a class="link" href="ix08.html#api-index-1.2">1.2</a></p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-set-default-threshold"></a><h3>gst_debug_set_default_threshold ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_set_default_threshold (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel"><span class="type">GstDebugLevel</span></a> level</code></em>);</pre>
 <p>Sets the default threshold to the given level and updates all categories to
 use this threshold.</p>
 <p>This function may be called before <a class="link" href="gstreamer-Gst.html#gst-init" title="gst_init ()"><code class="function">gst_init()</code></a>.</p>
 <div class="refsect3">
 <a name="gst-debug-set-default-threshold.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>level</p></td>
 <td class="parameter_description"><p>level to set</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-set-threshold-from-string"></a><h3>gst_debug_set_threshold_from_string ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_set_threshold_from_string (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *list</code></em>,
                                      <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> reset</code></em>);</pre>
 <p>Sets the debug logging wanted in the same form as with the GST_DEBUG
 environment variable. You can use wildcards such as '*', but note that
 the order matters when you use wild cards, e.g. "foosrc:6,*src:3,*:2" sets
 everything to log level 2.</p>
 <div class="refsect3">
 <a name="gst-debug-set-threshold-from-string.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>list</p></td>
 <td class="parameter_description"><p>comma-separated list of "category:level" pairs to be used
 as debug logging levels</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>reset</p></td>
 <td class="parameter_description"><p><a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> to clear all previously-set debug levels before setting
 new thresholds
 <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> if adding the threshold described by <em class="parameter"><code>list</code></em>
 to the one already set.</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <p class="since">Since: <a class="link" href="ix08.html#api-index-1.2">1.2</a></p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-get-default-threshold"></a><h3>gst_debug_get_default_threshold ()</h3>
 <pre class="programlisting"><a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel"><span class="returnvalue">GstDebugLevel</span></a>
 gst_debug_get_default_threshold (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
 <p>Returns the default threshold that is used for new categories.</p>
 <div class="refsect3">
 <a name="gst-debug-get-default-threshold.returns"></a><h4>Returns</h4>
 <p> the default threshold level</p>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-set-threshold-for-name"></a><h3>gst_debug_set_threshold_for_name ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_set_threshold_for_name (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
                                   <em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel"><span class="type">GstDebugLevel</span></a> level</code></em>);</pre>
 <p>Sets all categories which match the given glob style pattern to the given
 level.</p>
 <div class="refsect3">
 <a name="gst-debug-set-threshold-for-name.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>name</p></td>
 <td class="parameter_description"><p>name of the categories to set</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>level</p></td>
 <td class="parameter_description"><p>level to set them to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-unset-threshold-for-name"></a><h3>gst_debug_unset_threshold_for_name ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_unset_threshold_for_name (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>);</pre>
 <p>Resets all categories with the given name back to the default level.</p>
 <div class="refsect3">
 <a name="gst-debug-unset-threshold-for-name.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>name</p></td>
 <td class="parameter_description"><p>name of the categories to set</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-DEBUG-CATEGORY:CAPS"></a><h3>GST_DEBUG_CATEGORY()</h3>
 <pre class="programlisting">#define GST_DEBUG_CATEGORY(cat) GstDebugCategory *cat = NULL
 </pre>
 <p>Defines a GstDebugCategory variable.
 This macro expands to nothing if debugging is disabled.</p>
 <div class="refsect3">
 <a name="GST-DEBUG-CATEGORY.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>the category</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-DEBUG-CATEGORY-EXTERN:CAPS"></a><h3>GST_DEBUG_CATEGORY_EXTERN()</h3>
 <pre class="programlisting">#define GST_DEBUG_CATEGORY_EXTERN(cat) extern GstDebugCategory *cat
 </pre>
 <p>Declares a GstDebugCategory variable as extern. Use in header files.
 This macro expands to nothing if debugging is disabled.</p>
 <div class="refsect3">
 <a name="GST-DEBUG-CATEGORY-EXTERN.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>the category</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-DEBUG-CATEGORY-STATIC:CAPS"></a><h3>GST_DEBUG_CATEGORY_STATIC()</h3>
 <pre class="programlisting">#define GST_DEBUG_CATEGORY_STATIC(cat) static GstDebugCategory *cat = NULL
 </pre>
 <p>Defines a static GstDebugCategory variable.
 This macro expands to nothing if debugging is disabled.</p>
 <div class="refsect3">
 <a name="GST-DEBUG-CATEGORY-STATIC.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>the category</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-DEBUG-CATEGORY-INIT:CAPS"></a><h3>GST_DEBUG_CATEGORY_INIT()</h3>
 <pre class="programlisting">#define             GST_DEBUG_CATEGORY_INIT(cat,name,color,description)</pre>
 <p>Initializes a new <a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> with the given properties and set to
 the default threshold.</p>
 <div class="note">
 <p>
 This macro expands to nothing if debugging is disabled.
 </p>
 <p>
 When naming your category, please follow the following conventions to ensure
 that the pattern matching for categories works as expected. It is not
 earth-shattering if you don't follow these conventions, but it would be nice
 for everyone.
 </p>
 <p>
 If you define a category for a plugin or a feature of it, name the category
 like the feature. So if you wanted to write a "filesrc" element, you would
 name the category "filesrc". Use lowercase letters only.
 If you define more than one category for the same element, append an
 underscore and an identifier to your categories, like this: "filesrc_cache"
 </p>
 <p>
 If you create a library or an application using debugging categories, use a
 common prefix followed by an underscore for all your categories. GStreamer
 uses the GST prefix so GStreamer categories look like "GST_STATES". Be sure
 to include uppercase letters.
 </p>
 </div>
 <div class="refsect3">
 <a name="GST-DEBUG-CATEGORY-INIT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>the category to initialize.</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>name</p></td>
 <td class="parameter_description"><p>the name of the category.</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>color</p></td>
 <td class="parameter_description"><p>the colors to use for a color representation or 0 for no color.</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>description</p></td>
 <td class="parameter_description"><p>optional description of the category.</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-DEBUG-CATEGORY-GET:CAPS"></a><h3>GST_DEBUG_CATEGORY_GET()</h3>
 <pre class="programlisting">#define             GST_DEBUG_CATEGORY_GET(cat,name)</pre>
 <p>Looks up an existing <a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> by its <em class="parameter"><code>name</code></em>
  and sets <em class="parameter"><code>cat</code></em>
 . If the
 category is not found, but GST_CAT_DEFAULT is defined, that is assigned to
 <em class="parameter"><code>cat</code></em>
 . Otherwise <em class="parameter"><code>cat</code></em>
  will be <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p>
 <div class="informalexample">
   <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
     <tbody>
       <tr>
         <td class="listing_lines" align="right"><pre>1
 2
 3
 4
 5
 6</pre></td>
         <td class="listing_code"><pre class="programlisting"><span class="function"><a href="gstreamer-GstInfo.html#GST-DEBUG-CATEGORY-STATIC:CAPS">GST_DEBUG_CATEGORY_STATIC</a></span> <span class="gtkdoc opt">(</span>gst_myplugin_debug<span class="gtkdoc opt">);</span>
 <span class="gtkdoc ppc">#define GST_CAT_DEFAULT gst_myplugin_debug</span>
 <span class="function"><a href="gstreamer-GstInfo.html#GST-DEBUG-CATEGORY-STATIC:CAPS">GST_DEBUG_CATEGORY_STATIC</a></span> <span class="gtkdoc opt">(</span>GST_CAT_PERFORMANCE<span class="gtkdoc opt">);</span>
 <span class="gtkdoc opt">...</span>
 <span class="function"><a href="gstreamer-GstInfo.html#GST-DEBUG-CATEGORY-INIT:CAPS">GST_DEBUG_CATEGORY_INIT</a></span> <span class="gtkdoc opt">(</span>gst_myplugin_debug<span class="gtkdoc opt">,</span> <span class="string">&quot;myplugin&quot;</span><span class="gtkdoc opt">,</span> <span class="number">0</span><span class="gtkdoc opt">,</span> <span class="string">&quot;nice element&quot;</span><span class="gtkdoc opt">);</span>
 <span class="function"><a href="gstreamer-GstInfo.html#GST-DEBUG-CATEGORY-GET:CAPS">GST_DEBUG_CATEGORY_GET</a></span> <span class="gtkdoc opt">(</span>GST_CAT_PERFORMANCE<span class="gtkdoc opt">,</span> <span class="string">&quot;GST_PERFORMANCE&quot;</span><span class="gtkdoc opt">);</span></pre></td>
       </tr>
     </tbody>
   </table>
 </div>

 <p></p>
 <div class="refsect3">
 <a name="GST-DEBUG-CATEGORY-GET.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>the category to initialize.</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>name</p></td>
 <td class="parameter_description"><p>log category name</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-category-free"></a><h3>gst_debug_category_free ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_category_free (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> *category</code></em>);</pre>
 <p>Removes and frees the category and all associated resources.</p>
 <div class="refsect3">
 <a name="gst-debug-category-free.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>category</p></td>
 <td class="parameter_description"><p><a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> to free.</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-category-set-threshold"></a><h3>gst_debug_category_set_threshold ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_category_set_threshold (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> *category</code></em>,
                                   <em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel"><span class="type">GstDebugLevel</span></a> level</code></em>);</pre>
 <p>Sets the threshold of the category to the given level. Debug information will
 only be output if the threshold is lower or equal to the level of the
 debugging message.</p>
 <div class="note"><p>
 Do not use this function in production code, because other functions may
 change the threshold of categories as side effect. It is however a nice
 function to use when debugging (even from gdb).
 </p></div>
 <div class="refsect3">
 <a name="gst-debug-category-set-threshold.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>category</p></td>
 <td class="parameter_description"><p>a <a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> to set threshold of.</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>level</p></td>
 <td class="parameter_description"><p>the <a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel"><span class="type">GstDebugLevel</span></a> threshold to set.</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-category-reset-threshold"></a><h3>gst_debug_category_reset_threshold ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_category_reset_threshold (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> *category</code></em>);</pre>
 <p>Resets the threshold of the category to the default level. Debug information
 will only be output if the threshold is lower or equal to the level of the
 debugging message.
 Use this function to set the threshold back to where it was after using
 <a class="link" href="gstreamer-GstInfo.html#gst-debug-category-set-threshold" title="gst_debug_category_set_threshold ()"><code class="function">gst_debug_category_set_threshold()</code></a>.</p>
 <div class="refsect3">
 <a name="gst-debug-category-reset-threshold.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>category</p></td>
 <td class="parameter_description"><p>a <a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> to reset threshold of.</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-category-get-threshold"></a><h3>gst_debug_category_get_threshold ()</h3>
 <pre class="programlisting"><a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel"><span class="returnvalue">GstDebugLevel</span></a>
 gst_debug_category_get_threshold (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> *category</code></em>);</pre>
 <p>Returns the threshold of a <a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a>.</p>
 <div class="refsect3">
 <a name="gst-debug-category-get-threshold.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>category</p></td>
 <td class="parameter_description"><p>a <a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> to get threshold of.</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 <div class="refsect3">
 <a name="gst-debug-category-get-threshold.returns"></a><h4>Returns</h4>
 <p> the <a class="link" href="gstreamer-GstInfo.html#GstDebugLevel" title="enum GstDebugLevel"><span class="type">GstDebugLevel</span></a> that is used as threshold.</p>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-category-get-name"></a><h3>gst_debug_category_get_name ()</h3>
 <pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 gst_debug_category_get_name (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> *category</code></em>);</pre>
 <p>Returns the name of a debug category.</p>
 <div class="refsect3">
 <a name="gst-debug-category-get-name.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>category</p></td>
 <td class="parameter_description"><p>a <a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> to get name of.</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 <div class="refsect3">
 <a name="gst-debug-category-get-name.returns"></a><h4>Returns</h4>
 <p> the name of the category.</p>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-category-get-color"></a><h3>gst_debug_category_get_color ()</h3>
 <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
 gst_debug_category_get_color (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> *category</code></em>);</pre>
 <p>Returns the color of a debug category used when printing output in this
 category.</p>
 <div class="refsect3">
 <a name="gst-debug-category-get-color.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>category</p></td>
 <td class="parameter_description"><p>a <a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> to get the color of.</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 <div class="refsect3">
 <a name="gst-debug-category-get-color.returns"></a><h4>Returns</h4>
 <p> the color of the category.</p>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-category-get-description"></a><h3>gst_debug_category_get_description ()</h3>
 <pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 gst_debug_category_get_description (<em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> *category</code></em>);</pre>
 <p>Returns the description of a debug category.</p>
 <div class="refsect3">
 <a name="gst-debug-category-get-description.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>category</p></td>
 <td class="parameter_description"><p>a <a class="link" href="gstreamer-GstInfo.html#GstDebugCategory" title="struct GstDebugCategory"><span class="type">GstDebugCategory</span></a> to get the description of.</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 <div class="refsect3">
 <a name="gst-debug-category-get-description.returns"></a><h4>Returns</h4>
 <p> the description of the category.</p>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-get-all-categories"></a><h3>gst_debug_get_all_categories ()</h3>
 <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Singly-Linked-Lists.html#GSList"><span class="returnvalue">GSList</span></a> *
 gst_debug_get_all_categories (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
 <p>Returns a snapshot of a all categories that are currently in use . This list
 may change anytime.
 The caller has to free the list after use.</p>
 <div class="refsect3">
 <a name="gst-debug-get-all-categories.returns"></a><h4>Returns</h4>
 <p> the list of
 debug categories. </p>
 <p><span class="annotation">[<acronym title="Free data container after the code is done."><span class="acronym">transfer container</span></acronym>][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> Gst.DebugCategory]</span></p>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-construct-term-color"></a><h3>gst_debug_construct_term_color ()</h3>
 <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 gst_debug_construct_term_color (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="type">guint</span></a> colorinfo</code></em>);</pre>
 <p>Constructs a string that can be used for getting the desired color in color
 terminals.
 You need to free the string after use.</p>
 <div class="refsect3">
 <a name="gst-debug-construct-term-color.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>colorinfo</p></td>
 <td class="parameter_description"><p>the color info</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 <div class="refsect3">
 <a name="gst-debug-construct-term-color.returns"></a><h4>Returns</h4>
 <p> a string containing the color
 definition. </p>
 <p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>][<acronym title="Override the parsed C type with given type."><span class="acronym">type</span></acronym> gchar*]</span></p>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-construct-win-color"></a><h3>gst_debug_construct_win_color ()</h3>
 <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
 gst_debug_construct_win_color (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="type">guint</span></a> colorinfo</code></em>);</pre>
 <p>Constructs an integer that can be used for getting the desired color in
 windows' terminals (cmd.exe). As there is no mean to underline, we simply
 ignore this attribute.</p>
 <p>This function returns 0 on non-windows machines.</p>
 <div class="refsect3">
 <a name="gst-debug-construct-win-color.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>colorinfo</p></td>
 <td class="parameter_description"><p>the color info</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 <div class="refsect3">
 <a name="gst-debug-construct-win-color.returns"></a><h4>Returns</h4>
 <p> an integer containing the color definition</p>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-LEVEL-LOG:CAPS"></a><h3>GST_CAT_LEVEL_LOG()</h3>
 <pre class="programlisting">#define             GST_CAT_LEVEL_LOG(cat,level,object,...)</pre>
 <p>Outputs a debugging message. This is the most general macro for outputting
 debugging messages. You will probably want to use one of the ones described
 below.</p>
 <div class="refsect3">
 <a name="GST-CAT-LEVEL-LOG.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>level</p></td>
 <td class="parameter_description"><p>the severity of the message</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>object</p></td>
 <td class="parameter_description"><p> the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if none. </p></td>
 <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>A printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-ERROR-OBJECT:CAPS"></a><h3>GST_CAT_ERROR_OBJECT()</h3>
 <pre class="programlisting">#define GST_CAT_ERROR_OBJECT(cat,obj,...) GST_CAT_LEVEL_LOG (cat, GST_LEVEL_ERROR,   obj,  __VA_ARGS__)
 </pre>
 <p>Output an error message belonging to the given object in the given category.</p>
 <div class="refsect3">
 <a name="GST-CAT-ERROR-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-WARNING-OBJECT:CAPS"></a><h3>GST_CAT_WARNING_OBJECT()</h3>
 <pre class="programlisting">#define GST_CAT_WARNING_OBJECT(cat,obj,...) GST_CAT_LEVEL_LOG (cat, GST_LEVEL_WARNING, obj,  __VA_ARGS__)
 </pre>
 <p>Output a warning message belonging to the given object in the given category.</p>
 <div class="refsect3">
 <a name="GST-CAT-WARNING-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-INFO-OBJECT:CAPS"></a><h3>GST_CAT_INFO_OBJECT()</h3>
 <pre class="programlisting">#define GST_CAT_INFO_OBJECT(cat,obj,...) GST_CAT_LEVEL_LOG (cat, GST_LEVEL_INFO,    obj,  __VA_ARGS__)
 </pre>
 <p>Output an informational message belonging to the given object in the given
 category.</p>
 <div class="refsect3">
 <a name="GST-CAT-INFO-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-DEBUG-OBJECT:CAPS"></a><h3>GST_CAT_DEBUG_OBJECT()</h3>
 <pre class="programlisting">#define GST_CAT_DEBUG_OBJECT(cat,obj,...) GST_CAT_LEVEL_LOG (cat, GST_LEVEL_DEBUG,   obj,  __VA_ARGS__)
 </pre>
 <p>Output an debugging message belonging to the given object in the given category.</p>
 <div class="refsect3">
 <a name="GST-CAT-DEBUG-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-LOG-OBJECT:CAPS"></a><h3>GST_CAT_LOG_OBJECT()</h3>
 <pre class="programlisting">#define GST_CAT_LOG_OBJECT(cat,obj,...)		GST_CAT_LEVEL_LOG (cat, GST_LEVEL_LOG,     obj,  __VA_ARGS__)
 </pre>
 <p>Output an logging message belonging to the given object in the given category.</p>
 <div class="refsect3">
 <a name="GST-CAT-LOG-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-FIXME-OBJECT:CAPS"></a><h3>GST_CAT_FIXME_OBJECT()</h3>
 <pre class="programlisting">#define GST_CAT_FIXME_OBJECT(cat,obj,...) GST_CAT_LEVEL_LOG (cat, GST_LEVEL_FIXME,   obj,  __VA_ARGS__)
 </pre>
 <p>Output a fixme message belonging to the given object in the given category.</p>
 <div class="refsect3">
 <a name="GST-CAT-FIXME-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-TRACE-OBJECT:CAPS"></a><h3>GST_CAT_TRACE_OBJECT()</h3>
 <pre class="programlisting">#define GST_CAT_TRACE_OBJECT(cat,obj,...) GST_CAT_LEVEL_LOG (cat, GST_LEVEL_TRACE,   obj,  __VA_ARGS__)
 </pre>
 <p>Output a tracing message belonging to the given object in the given
 category.</p>
 <div class="refsect3">
 <a name="GST-CAT-TRACE-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-MEMDUMP-OBJECT:CAPS"></a><h3>GST_CAT_MEMDUMP_OBJECT()</h3>
 <pre class="programlisting">#define             GST_CAT_MEMDUMP_OBJECT(cat,obj,msg,data,length)</pre>
 <p>Output a hexdump of <em class="parameter"><code>data</code></em>
  relating to the given object in the given
 category.</p>
 <div class="refsect3">
 <a name="GST-CAT-MEMDUMP-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>msg</p></td>
 <td class="parameter_description"><p>message string to log with the data</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>data</p></td>
 <td class="parameter_description"><p>pointer to the data to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>length</p></td>
 <td class="parameter_description"><p>length of the data to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-ERROR:CAPS"></a><h3>GST_CAT_ERROR()</h3>
 <pre class="programlisting">#define GST_CAT_ERROR(cat,...)			GST_CAT_LEVEL_LOG (cat, GST_LEVEL_ERROR,   NULL, __VA_ARGS__)
 </pre>
 <p>Output an error message in the given category.</p>
 <div class="refsect3">
 <a name="GST-CAT-ERROR.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-WARNING:CAPS"></a><h3>GST_CAT_WARNING()</h3>
 <pre class="programlisting">#define GST_CAT_WARNING(cat,...)		GST_CAT_LEVEL_LOG (cat, GST_LEVEL_WARNING, NULL, __VA_ARGS__)
 </pre>
 <p>Output an warning message in the given category.</p>
 <div class="refsect3">
 <a name="GST-CAT-WARNING.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-INFO:CAPS"></a><h3>GST_CAT_INFO()</h3>
 <pre class="programlisting">#define GST_CAT_INFO(cat,...)			GST_CAT_LEVEL_LOG (cat, GST_LEVEL_INFO,    NULL, __VA_ARGS__)
 </pre>
 <p>Output an informational message in the given category.</p>
 <div class="refsect3">
 <a name="GST-CAT-INFO.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-DEBUG:CAPS"></a><h3>GST_CAT_DEBUG()</h3>
 <pre class="programlisting">#define GST_CAT_DEBUG(cat,...)			GST_CAT_LEVEL_LOG (cat, GST_LEVEL_DEBUG,   NULL, __VA_ARGS__)
 </pre>
 <p>Output an debugging message in the given category.</p>
 <div class="refsect3">
 <a name="GST-CAT-DEBUG.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-LOG:CAPS"></a><h3>GST_CAT_LOG()</h3>
 <pre class="programlisting">#define GST_CAT_LOG(cat,...)			GST_CAT_LEVEL_LOG (cat, GST_LEVEL_LOG,     NULL, __VA_ARGS__)
 </pre>
 <p>Output an logging message in the given category.</p>
 <div class="refsect3">
 <a name="GST-CAT-LOG.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-FIXME:CAPS"></a><h3>GST_CAT_FIXME()</h3>
 <pre class="programlisting">#define GST_CAT_FIXME(cat,...)			GST_CAT_LEVEL_LOG (cat, GST_LEVEL_FIXME,   NULL, __VA_ARGS__)
 </pre>
 <p>Output an fixme message in the given category.</p>
 <div class="refsect3">
 <a name="GST-CAT-FIXME.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-TRACE:CAPS"></a><h3>GST_CAT_TRACE()</h3>
 <pre class="programlisting">#define GST_CAT_TRACE(cat,...)		GST_CAT_LEVEL_LOG (cat, GST_LEVEL_TRACE,   NULL, __VA_ARGS__)
 </pre>
 <p>Output a tracing message in the given category.</p>
 <div class="refsect3">
 <a name="GST-CAT-TRACE.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-MEMDUMP:CAPS"></a><h3>GST_CAT_MEMDUMP()</h3>
 <pre class="programlisting">#define             GST_CAT_MEMDUMP(cat,msg,data,length)</pre>
 <p>Output a hexdump of <em class="parameter"><code>data</code></em>
  in the given category.</p>
 <div class="refsect3">
 <a name="GST-CAT-MEMDUMP.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>cat</p></td>
 <td class="parameter_description"><p>category to use</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>msg</p></td>
 <td class="parameter_description"><p>message string to log with the data</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>data</p></td>
 <td class="parameter_description"><p>pointer to the data to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>length</p></td>
 <td class="parameter_description"><p>length of the data to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-ERROR-OBJECT:CAPS"></a><h3>GST_ERROR_OBJECT()</h3>
 <pre class="programlisting">#define GST_ERROR_OBJECT(obj,...) GST_CAT_LEVEL_LOG (GST_CAT_DEFAULT, GST_LEVEL_ERROR,   obj,  __VA_ARGS__)
 </pre>
 <p>Output an error message belonging to the given object in the default category.</p>
 <div class="refsect3">
 <a name="GST-ERROR-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-WARNING-OBJECT:CAPS"></a><h3>GST_WARNING_OBJECT()</h3>
 <pre class="programlisting">#define GST_WARNING_OBJECT(obj,...) GST_CAT_LEVEL_LOG (GST_CAT_DEFAULT, GST_LEVEL_WARNING, obj,  __VA_ARGS__)
 </pre>
 <p>Output a warning message belonging to the given object in the default category.</p>
 <div class="refsect3">
 <a name="GST-WARNING-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-INFO-OBJECT:CAPS"></a><h3>GST_INFO_OBJECT()</h3>
 <pre class="programlisting">#define GST_INFO_OBJECT(obj,...) GST_CAT_LEVEL_LOG (GST_CAT_DEFAULT, GST_LEVEL_INFO,    obj,  __VA_ARGS__)
 </pre>
 <p>Output an informational message belonging to the given object in the default
 category.</p>
 <div class="refsect3">
 <a name="GST-INFO-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-DEBUG-OBJECT:CAPS"></a><h3>GST_DEBUG_OBJECT()</h3>
 <pre class="programlisting">#define GST_DEBUG_OBJECT(obj,...) GST_CAT_LEVEL_LOG (GST_CAT_DEFAULT, GST_LEVEL_DEBUG,   obj,  __VA_ARGS__)
 </pre>
 <p>Output a debugging message belonging to the given object in the default
 category.</p>
 <div class="refsect3">
 <a name="GST-DEBUG-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-LOG-OBJECT:CAPS"></a><h3>GST_LOG_OBJECT()</h3>
 <pre class="programlisting">#define GST_LOG_OBJECT(obj,...)		GST_CAT_LEVEL_LOG (GST_CAT_DEFAULT, GST_LEVEL_LOG,     obj,  __VA_ARGS__)
 </pre>
 <p>Output a logging message belonging to the given object in the default category.</p>
 <div class="refsect3">
 <a name="GST-LOG-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-FIXME-OBJECT:CAPS"></a><h3>GST_FIXME_OBJECT()</h3>
 <pre class="programlisting">#define GST_FIXME_OBJECT(obj,...) GST_CAT_LEVEL_LOG (GST_CAT_DEFAULT, GST_LEVEL_FIXME,   obj,  __VA_ARGS__)
 </pre>
 <p>Output a fixme message belonging to the given object in the default category.</p>
 <div class="refsect3">
 <a name="GST-FIXME-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-TRACE-OBJECT:CAPS"></a><h3>GST_TRACE_OBJECT()</h3>
 <pre class="programlisting">#define GST_TRACE_OBJECT(obj,...) GST_CAT_LEVEL_LOG (GST_CAT_DEFAULT, GST_LEVEL_TRACE,   obj,  __VA_ARGS__)
 </pre>
 <p>Output a tracing message belonging to the given object in the default category.</p>
 <div class="refsect3">
 <a name="GST-TRACE-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-MEMDUMP-OBJECT:CAPS"></a><h3>GST_MEMDUMP_OBJECT()</h3>
 <pre class="programlisting">#define             GST_MEMDUMP_OBJECT(obj,msg,data,length)</pre>
 <p>Output a logging message belonging to the given object in the default category.</p>
 <div class="refsect3">
 <a name="GST-MEMDUMP-OBJECT.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>obj</p></td>
 <td class="parameter_description"><p>the <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> the message belongs to</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>msg</p></td>
 <td class="parameter_description"><p>message string to log with the data</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>data</p></td>
 <td class="parameter_description"><p>pointer to the data to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>length</p></td>
 <td class="parameter_description"><p>length of the data to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-ERROR:CAPS"></a><h3>GST_ERROR()</h3>
 <pre class="programlisting">#define GST_ERROR(...)			GST_CAT_LEVEL_LOG (GST_CAT_DEFAULT, GST_LEVEL_ERROR,   NULL, __VA_ARGS__)
 </pre>
 <p>Output an error message in the default category.</p>
 <div class="refsect3">
 <a name="GST-ERROR.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-WARNING:CAPS"></a><h3>GST_WARNING()</h3>
 <pre class="programlisting">#define GST_WARNING(...)		GST_CAT_LEVEL_LOG (GST_CAT_DEFAULT, GST_LEVEL_WARNING, NULL, __VA_ARGS__)
 </pre>
 <p>Output a warning message in the default category.</p>
 <div class="refsect3">
 <a name="GST-WARNING.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-INFO:CAPS"></a><h3>GST_INFO()</h3>
 <pre class="programlisting">#define GST_INFO(...)			GST_CAT_LEVEL_LOG (GST_CAT_DEFAULT, GST_LEVEL_INFO,    NULL, __VA_ARGS__)
 </pre>
 <p>Output an informational message in the default category.</p>
 <div class="refsect3">
 <a name="GST-INFO.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-DEBUG:CAPS"></a><h3>GST_DEBUG()</h3>
 <pre class="programlisting">#define GST_DEBUG(...)			GST_CAT_LEVEL_LOG (GST_CAT_DEFAULT, GST_LEVEL_DEBUG,   NULL, __VA_ARGS__)
 </pre>
 <p>Output a debugging message in the default category.</p>
 <div class="refsect3">
 <a name="GST-DEBUG.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-LOG:CAPS"></a><h3>GST_LOG()</h3>
 <pre class="programlisting">#define GST_LOG(...)			GST_CAT_LEVEL_LOG (GST_CAT_DEFAULT, GST_LEVEL_LOG,     NULL, __VA_ARGS__)
 </pre>
 <p>Output a logging message in the default category.</p>
 <div class="refsect3">
 <a name="GST-LOG.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-FIXME:CAPS"></a><h3>GST_FIXME()</h3>
 <pre class="programlisting">#define GST_FIXME(...)			GST_CAT_LEVEL_LOG (GST_CAT_DEFAULT, GST_LEVEL_FIXME,   NULL, __VA_ARGS__)
 </pre>
 <p>Output a fixme message in the default category.</p>
 <div class="refsect3">
 <a name="GST-FIXME.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-TRACE:CAPS"></a><h3>GST_TRACE()</h3>
 <pre class="programlisting">#define GST_TRACE(...)		GST_CAT_LEVEL_LOG (GST_CAT_DEFAULT, GST_LEVEL_TRACE,   NULL, __VA_ARGS__)
 </pre>
 <p>Output a tracing message in the default category.</p>
 <div class="refsect3">
 <a name="GST-TRACE.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>printf-style message to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-MEMDUMP:CAPS"></a><h3>GST_MEMDUMP()</h3>
 <pre class="programlisting">#define             GST_MEMDUMP(msg,data,length)</pre>
 <p>Output a hexdump of <em class="parameter"><code>data</code></em>
 .</p>
 <div class="refsect3">
 <a name="GST-MEMDUMP.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>msg</p></td>
 <td class="parameter_description"><p>message string to log with the data</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>data</p></td>
 <td class="parameter_description"><p>pointer to the data to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>length</p></td>
 <td class="parameter_description"><p>length of the data to output</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-DEBUG-REGISTER-FUNCPTR:CAPS"></a><h3>GST_DEBUG_REGISTER_FUNCPTR()</h3>
 <pre class="programlisting">#define             GST_DEBUG_REGISTER_FUNCPTR(ptr)</pre>
 <p>Register a pointer to a function with its name, so it can later be used by
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-FUNCPTR-NAME:CAPS" title="GST_DEBUG_FUNCPTR_NAME()"><code class="function">GST_DEBUG_FUNCPTR_NAME()</code></a>.</p>
 <p>Use this variant of <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-FUNCPTR:CAPS" title="GST_DEBUG_FUNCPTR()"><span class="type">GST_DEBUG_FUNCPTR</span></a> if you do not need to use <em class="parameter"><code>ptr</code></em>
 .</p>
 <div class="refsect3">
 <a name="GST-DEBUG-REGISTER-FUNCPTR.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>ptr</p></td>
 <td class="parameter_description"><p>pointer to the function to register</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-DEBUG-FUNCPTR:CAPS"></a><h3>GST_DEBUG_FUNCPTR()</h3>
 <pre class="programlisting">#define             GST_DEBUG_FUNCPTR(ptr)</pre>
 <p>Register a pointer to a function with its name, so it can later be used by
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-FUNCPTR-NAME:CAPS" title="GST_DEBUG_FUNCPTR_NAME()"><code class="function">GST_DEBUG_FUNCPTR_NAME()</code></a>.</p>
 <div class="refsect3">
 <a name="GST-DEBUG-FUNCPTR.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>ptr</p></td>
 <td class="parameter_description"><p>pointer to the function to register</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 <div class="refsect3">
 <a name="GST-DEBUG-FUNCPTR.returns"></a><h4>Returns</h4>
 <p> the value passed to <em class="parameter"><code>ptr</code></em>
 .</p>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-DEBUG-FUNCPTR-NAME:CAPS"></a><h3>GST_DEBUG_FUNCPTR_NAME()</h3>
 <pre class="programlisting">#define             GST_DEBUG_FUNCPTR_NAME(ptr)</pre>
 <p>Retrieves the name of the function, if it was previously registered with
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-FUNCPTR:CAPS" title="GST_DEBUG_FUNCPTR()"><code class="function">GST_DEBUG_FUNCPTR()</code></a>. If not, it returns a description of the pointer.</p>
 <p>This macro returns a constant string which must not be modified or
 freed by the caller.</p>
 <div class="refsect3">
 <a name="GST-DEBUG-FUNCPTR-NAME.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>ptr</p></td>
 <td class="parameter_description"><p>address of the function of which to look up the name</p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-DEBUG-BIN-TO-DOT-FILE:CAPS"></a><h3>GST_DEBUG_BIN_TO_DOT_FILE()</h3>
 <pre class="programlisting">#define GST_DEBUG_BIN_TO_DOT_FILE(bin, details, file_name) gst_debug_bin_to_dot_file (bin, details, file_name)
 </pre>
 <p>To aid debugging applications one can use this method to write out the whole
 network of gstreamer elements that form the pipeline into an dot file.
 This file can be processed with graphviz to get an image, like this:</p>
 <div class="informalexample">
   <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
     <tbody>
       <tr>
         <td class="listing_lines" align="right"><pre>1</pre></td>
         <td class="listing_code"><pre class="programlisting">dot <span class="gtkdoc opt">-</span>Tpng <span class="gtkdoc opt">-</span>oimage<span class="gtkdoc opt">.</span>png graph_lowlevel<span class="gtkdoc opt">.</span>dot</pre></td>
       </tr>
     </tbody>
   </table>
 </div>

 <p>There is also a utility called xdot which allows you to view the dot file
 directly without converting it first.</p>
 <p>The macro is only active if gstreamer is configured with
 "--gst-enable-gst-debug" and the environment variable
 GST_DEBUG_DUMP_DOT_DIR is set to a basepath (e.g. /tmp).</p>
 <div class="refsect3">
 <a name="GST-DEBUG-BIN-TO-DOT-FILE.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>bin</p></td>
 <td class="parameter_description"><p>the top-level pipeline that should be analyzed</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>details</p></td>
 <td class="parameter_description"><p>details to show in the graph, e.g. <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-GRAPH-SHOW-ALL:CAPS"><span class="type">GST_DEBUG_GRAPH_SHOW_ALL</span></a> or
 one or more other <a class="link" href="gstreamer-GstInfo.html#GstDebugGraphDetails" title="enum GstDebugGraphDetails"><span class="type">GstDebugGraphDetails</span></a> flags.</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>file_name</p></td>
 <td class="parameter_description"><p>output base filename (e.g. "myplayer")</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-DEBUG-BIN-TO-DOT-FILE-WITH-TS:CAPS"></a><h3>GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS()</h3>
 <pre class="programlisting">#define GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS(bin, details, file_name) gst_debug_bin_to_dot_file_with_ts (bin, details, file_name)
 </pre>
 <p>This works like <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-BIN-TO-DOT-FILE:CAPS" title="GST_DEBUG_BIN_TO_DOT_FILE()"><code class="function">GST_DEBUG_BIN_TO_DOT_FILE()</code></a>, but adds the current timestamp
 to the filename, so that it can be used to take multiple snapshots.</p>
 <div class="refsect3">
 <a name="GST-DEBUG-BIN-TO-DOT-FILE-WITH-TS.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>bin</p></td>
 <td class="parameter_description"><p>the top-level pipeline that should be analyzed</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>details</p></td>
 <td class="parameter_description"><p>details to show in the graph, e.g. <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-GRAPH-SHOW-ALL:CAPS"><span class="type">GST_DEBUG_GRAPH_SHOW_ALL</span></a> or
 one or more other <a class="link" href="gstreamer-GstInfo.html#GstDebugGraphDetails" title="enum GstDebugGraphDetails"><span class="type">GstDebugGraphDetails</span></a> flags.</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>file_name</p></td>
 <td class="parameter_description"><p>output base filename (e.g. "myplayer")</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-print-stack-trace"></a><h3>gst_debug_print_stack_trace ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_print_stack_trace (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
 <p>If GST_ENABLE_FUNC_INSTRUMENTATION is defined a stacktrace is available for
 gstreamer code, which can be printed with this function.</p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-TIME-ARGS:CAPS"></a><h3>GST_TIME_ARGS()</h3>
 <pre class="programlisting">#define             GST_TIME_ARGS(t)</pre>
 <p>Format <em class="parameter"><code>t</code></em>
  for the <a class="link" href="gstreamer-GstInfo.html#GST-TIME-FORMAT:CAPS" title="GST_TIME_FORMAT"><span class="type">GST_TIME_FORMAT</span></a> format string. Note: <em class="parameter"><code>t</code></em>
  will be
 evaluated more than once.</p>
 <div class="refsect3">
 <a name="GST-TIME-ARGS.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>t</p></td>
 <td class="parameter_description"><p>a <a class="link" href="GstClock.html#GstClockTime" title="GstClockTime"><span class="type">GstClockTime</span></a></p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-STIME-ARGS:CAPS"></a><h3>GST_STIME_ARGS()</h3>
 <pre class="programlisting">#define             GST_STIME_ARGS(t)</pre>
 <p>Format <em class="parameter"><code>t</code></em>
  for the <a class="link" href="gstreamer-GstInfo.html#GST-STIME-FORMAT:CAPS" title="GST_STIME_FORMAT"><span class="type">GST_STIME_FORMAT</span></a> format string. Note: <em class="parameter"><code>t</code></em>
  will be
 evaluated more than once.</p>
 <div class="refsect3">
 <a name="GST-STIME-ARGS.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody><tr>
 <td class="parameter_name"><p>t</p></td>
 <td class="parameter_description"><p>a <a class="link" href="GstClock.html#GstClockTimeDiff" title="GstClockTimeDiff"><span class="type">GstClockTimeDiff</span></a> or <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint64"><span class="type">gint64</span></a></p></td>
 <td class="parameter_annotations"> </td>
 </tr></tbody>
 </table></div>
 </div>
 <p class="since">Since: <a class="link" href="ix05.html#api-index-1.6">1.6</a></p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-bin-to-dot-data"></a><h3>gst_debug_bin_to_dot_data ()</h3>
 <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 gst_debug_bin_to_dot_data (<em class="parameter"><code><a class="link" href="GstBin.html" title="GstBin"><span class="type">GstBin</span></a> *bin</code></em>,
                            <em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugGraphDetails" title="enum GstDebugGraphDetails"><span class="type">GstDebugGraphDetails</span></a> details</code></em>);</pre>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-bin-to-dot-file"></a><h3>gst_debug_bin_to_dot_file ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_bin_to_dot_file (<em class="parameter"><code><a class="link" href="GstBin.html" title="GstBin"><span class="type">GstBin</span></a> *bin</code></em>,
                            <em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugGraphDetails" title="enum GstDebugGraphDetails"><span class="type">GstDebugGraphDetails</span></a> details</code></em>,
                            <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *file_name</code></em>);</pre>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-debug-bin-to-dot-file-with-ts"></a><h3>gst_debug_bin_to_dot_file_with_ts ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>
 gst_debug_bin_to_dot_file_with_ts (<em class="parameter"><code><a class="link" href="GstBin.html" title="GstBin"><span class="type">GstBin</span></a> *bin</code></em>,
                                    <em class="parameter"><code><a class="link" href="gstreamer-GstInfo.html#GstDebugGraphDetails" title="enum GstDebugGraphDetails"><span class="type">GstDebugGraphDetails</span></a> details</code></em>,
                                    <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *file_name</code></em>);</pre>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-info-vasprintf"></a><h3>gst_info_vasprintf ()</h3>
 <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
 gst_info_vasprintf (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> **result</code></em>,
                     <em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *format</code></em>,
                     <em class="parameter"><code><span class="type">va_list</span> args</code></em>);</pre>
 <p>Allocates and fills a string large enough (including the terminating null
 byte) to hold the specified printf style <em class="parameter"><code>format</code></em>
  and <em class="parameter"><code>args</code></em>
 .</p>
 <p>This function deals with the GStreamer specific printf specifiers
 <a class="link" href="gstreamer-GstInfo.html#GST-PTR-FORMAT:CAPS" title="GST_PTR_FORMAT"><span class="type">GST_PTR_FORMAT</span></a> and <a class="link" href="gstreamer-GstInfo.html#GST-SEGMENT-FORMAT:CAPS" title="GST_SEGMENT_FORMAT"><span class="type">GST_SEGMENT_FORMAT</span></a>.  If you do not have these specifiers
 in your <em class="parameter"><code>format</code></em>
  string, you do not need to use this function and can use
 alternatives such as <a href="/usr/share/gtk-doc/html/glibglib-String-Utility-Functions.html#g-vasprintf"><code class="function">g_vasprintf()</code></a>.</p>
 <p>Free <em class="parameter"><code>result</code></em>
  with <a href="/usr/share/gtk-doc/html/glibglib-Memory-Allocation.html#g-free"><code class="function">g_free()</code></a>.</p>
 <div class="refsect3">
 <a name="gst-info-vasprintf.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>result</p></td>
 <td class="parameter_description"><p> the resulting string. </p></td>
 <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
 </tr>
 <tr>
 <td class="parameter_name"><p>format</p></td>
 <td class="parameter_description"><p>a printf style format string</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>args</p></td>
 <td class="parameter_description"><p>the va_list of printf arguments for <em class="parameter"><code>format</code></em>
 </p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <div class="refsect3">
 <a name="gst-info-vasprintf.returns"></a><h4>Returns</h4>
 <p> the length of the string allocated into <em class="parameter"><code>result</code></em>
 or -1 on any error</p>
 </div>
 <p class="since">Since: <a class="link" href="ix04.html#api-index-1.8">1.8</a></p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-info-strdup-vprintf"></a><h3>gst_info_strdup_vprintf ()</h3>
 <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 gst_info_strdup_vprintf (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *format</code></em>,
                          <em class="parameter"><code><span class="type">va_list</span> args</code></em>);</pre>
 <p>Allocates, fills and returns a null terminated string from the printf style
 <em class="parameter"><code>format</code></em>
  string and <em class="parameter"><code>args</code></em>
 .</p>
 <p>See <a class="link" href="gstreamer-GstInfo.html#gst-info-vasprintf" title="gst_info_vasprintf ()"><code class="function">gst_info_vasprintf()</code></a> for when this function is required.</p>
 <p>Free with <a href="/usr/share/gtk-doc/html/glibglib-Memory-Allocation.html#g-free"><code class="function">g_free()</code></a>.</p>
 <div class="refsect3">
 <a name="gst-info-strdup-vprintf.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>format</p></td>
 <td class="parameter_description"><p>a printf style format string</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>args</p></td>
 <td class="parameter_description"><p>the va_list of printf arguments for <em class="parameter"><code>format</code></em>
 </p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <div class="refsect3">
 <a name="gst-info-strdup-vprintf.returns"></a><h4>Returns</h4>
 <p> a newly allocated null terminated string or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> on any error</p>
 </div>
 <p class="since">Since: <a class="link" href="ix04.html#api-index-1.8">1.8</a></p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-info-strdup-printf"></a><h3>gst_info_strdup_printf ()</h3>
 <pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
 gst_info_strdup_printf (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *format</code></em>,
                         <em class="parameter"><code>...</code></em>);</pre>
 <p>Allocates, fills and returns a null terminated string from the printf style
 <em class="parameter"><code>format</code></em>
  string and corresponding arguments.</p>
 <p>See <a class="link" href="gstreamer-GstInfo.html#gst-info-vasprintf" title="gst_info_vasprintf ()"><code class="function">gst_info_vasprintf()</code></a> for when this function is required.</p>
 <p>Free with <a href="/usr/share/gtk-doc/html/glibglib-Memory-Allocation.html#g-free"><code class="function">g_free()</code></a>.</p>
 <div class="refsect3">
 <a name="gst-info-strdup-printf.parameters"></a><h4>Parameters</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="150px" class="parameters_name">
 <col class="parameters_description">
 <col width="200px" class="parameters_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="parameter_name"><p>format</p></td>
 <td class="parameter_description"><p>a printf style format string</p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 <tr>
 <td class="parameter_name"><p>...</p></td>
 <td class="parameter_description"><p>the printf arguments for <em class="parameter"><code>format</code></em>
 </p></td>
 <td class="parameter_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <div class="refsect3">
 <a name="gst-info-strdup-printf.returns"></a><h4>Returns</h4>
 <p> a newly allocated null terminated string or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> on any error</p>
 </div>
 <p class="since">Since: <a class="link" href="ix04.html#api-index-1.8">1.8</a></p>
 </div>
 </div>
 <div class="refsect1">
 <a name="gstreamer-GstInfo.other_details"></a><h2>Types and Values</h2>
 <div class="refsect2">
 <a name="GstDebugLevel"></a><h3>enum GstDebugLevel</h3>
 <p>The level defines the importance of a debugging message. The more important a
 message is, the greater the probability that the debugging system outputs it.</p>
 <div class="refsect3">
 <a name="GstDebugLevel.members"></a><h4>Members</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="300px" class="enum_members_name">
 <col class="enum_members_description">
 <col width="200px" class="enum_members_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="enum_member_name"><p><a name="GST-LEVEL-NONE:CAPS"></a>GST_LEVEL_NONE</p></td>
 <td class="enum_member_description">
 <p>No debugging level specified or desired. Used to deactivate
  debugging output.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-LEVEL-ERROR:CAPS"></a>GST_LEVEL_ERROR</p></td>
 <td class="enum_member_description">
 <p>Error messages are to be used only when an error occurred
  that stops the application from keeping working correctly.
  An examples is gst_element_error, which outputs a message with this priority.
  It does not mean that the application is terminating as with g_error.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-LEVEL-WARNING:CAPS"></a>GST_LEVEL_WARNING</p></td>
 <td class="enum_member_description">
 <p>Warning messages are to inform about abnormal behaviour
  that could lead to problems or weird behaviour later on. An example of this
  would be clocking issues ("your computer is pretty slow") or broken input
  data ("Can't synchronize to stream.")</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-LEVEL-FIXME:CAPS"></a>GST_LEVEL_FIXME</p></td>
 <td class="enum_member_description">
 <p>Fixme messages are messages that indicate that something
  in the executed code path is not fully implemented or handled yet. Note
  that this does not replace proper error handling in any way, the purpose
  of this message is to make it easier to spot incomplete/unfinished pieces
  of code when reading the debug log.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-LEVEL-INFO:CAPS"></a>GST_LEVEL_INFO</p></td>
 <td class="enum_member_description">
 <p>Informational messages should be used to keep the developer
  updated about what is happening.
  Examples where this should be used are when a typefind function has
  successfully determined the type of the stream or when an mp3 plugin detects
  the format to be used. ("This file has mono sound.")</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-LEVEL-DEBUG:CAPS"></a>GST_LEVEL_DEBUG</p></td>
 <td class="enum_member_description">
 <p>Debugging messages should be used when something common
  happens that is not the expected default behavior, or something that's
  useful to know but doesn't happen all the time (ie. per loop iteration or
  buffer processed or event handled).
  An example would be notifications about state changes or receiving/sending
  of events.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-LEVEL-LOG:CAPS"></a>GST_LEVEL_LOG</p></td>
 <td class="enum_member_description">
 <p>Log messages are messages that are very common but might be
  useful to know. As a rule of thumb a pipeline that is running as expected
  should never output anything else but LOG messages whilst processing data.
  Use this log level to log recurring information in chain functions and
  loop functions, for example.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-LEVEL-TRACE:CAPS"></a>GST_LEVEL_TRACE</p></td>
 <td class="enum_member_description">
 <p>Tracing-related messages.
  Examples for this are referencing/dereferencing of objects.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-LEVEL-MEMDUMP:CAPS"></a>GST_LEVEL_MEMDUMP</p></td>
 <td class="enum_member_description">
 <p>memory dump messages are used to log (small) chunks of
  data as memory dumps in the log. They will be displayed as hexdump with
  ASCII characters.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-LEVEL-COUNT:CAPS"></a>GST_LEVEL_COUNT</p></td>
 <td class="enum_member_description">
 <p>The number of defined debugging levels.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-LEVEL-DEFAULT:CAPS"></a><h3>GST_LEVEL_DEFAULT</h3>
 <pre class="programlisting">#define GST_LEVEL_DEFAULT GST_LEVEL_NONE
 </pre>
 <p>Defines the default debugging level to be used with GStreamer. It is normally
 set to <a class="link" href="gstreamer-GstInfo.html#GST-LEVEL-NONE:CAPS"><span class="type">GST_LEVEL_NONE</span></a> so nothing get printed.
 As it can be configured at compile time, developer builds may chose to
 override that though.
 You can use this as an argument to <a class="link" href="gstreamer-GstInfo.html#gst-debug-set-default-threshold" title="gst_debug_set_default_threshold ()"><code class="function">gst_debug_set_default_threshold()</code></a> to
 reset the debugging output to default behaviour.</p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-LEVEL-MAX:CAPS"></a><h3>GST_LEVEL_MAX</h3>
 <pre class="programlisting">#define GST_LEVEL_MAX GST_LEVEL_COUNT
 </pre>
 <p>Defines the maximum debugging level to be enabled at compilation time. By default
 it is set such that all debugging statements will be enabled.</p>
 <p>If you wish to compile GStreamer and plugins with only some debugging statements
 (Such as just warnings and errors), you can define it at compile time to the
 maximum debug level. Any debug statements above that level will be compiled out.</p>
 <p class="since">Since: <a class="link" href="ix05.html#api-index-1.6">1.6</a></p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GstDebugColorFlags"></a><h3>enum GstDebugColorFlags</h3>
 <p>These are some terminal style flags you can use when creating your
 debugging categories to make them stand out in debugging output.</p>
 <div class="refsect3">
 <a name="GstDebugColorFlags.members"></a><h4>Members</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="300px" class="enum_members_name">
 <col class="enum_members_description">
 <col width="200px" class="enum_members_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-FG-BLACK:CAPS"></a>GST_DEBUG_FG_BLACK</p></td>
 <td class="enum_member_description">
 <p>Use black as foreground color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-FG-RED:CAPS"></a>GST_DEBUG_FG_RED</p></td>
 <td class="enum_member_description">
 <p>Use red as foreground color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-FG-GREEN:CAPS"></a>GST_DEBUG_FG_GREEN</p></td>
 <td class="enum_member_description">
 <p>Use green as foreground color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-FG-YELLOW:CAPS"></a>GST_DEBUG_FG_YELLOW</p></td>
 <td class="enum_member_description">
 <p>Use yellow as foreground color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-FG-BLUE:CAPS"></a>GST_DEBUG_FG_BLUE</p></td>
 <td class="enum_member_description">
 <p>Use blue as foreground color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-FG-MAGENTA:CAPS"></a>GST_DEBUG_FG_MAGENTA</p></td>
 <td class="enum_member_description">
 <p>Use magenta as foreground color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-FG-CYAN:CAPS"></a>GST_DEBUG_FG_CYAN</p></td>
 <td class="enum_member_description">
 <p>Use cyan as foreground color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-FG-WHITE:CAPS"></a>GST_DEBUG_FG_WHITE</p></td>
 <td class="enum_member_description">
 <p>Use white as foreground color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-BG-BLACK:CAPS"></a>GST_DEBUG_BG_BLACK</p></td>
 <td class="enum_member_description">
 <p>Use black as background color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-BG-RED:CAPS"></a>GST_DEBUG_BG_RED</p></td>
 <td class="enum_member_description">
 <p>Use red as background color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-BG-GREEN:CAPS"></a>GST_DEBUG_BG_GREEN</p></td>
 <td class="enum_member_description">
 <p>Use green as background color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-BG-YELLOW:CAPS"></a>GST_DEBUG_BG_YELLOW</p></td>
 <td class="enum_member_description">
 <p>Use yellow as background color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-BG-BLUE:CAPS"></a>GST_DEBUG_BG_BLUE</p></td>
 <td class="enum_member_description">
 <p>Use blue as background color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-BG-MAGENTA:CAPS"></a>GST_DEBUG_BG_MAGENTA</p></td>
 <td class="enum_member_description">
 <p>Use magenta as background color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-BG-CYAN:CAPS"></a>GST_DEBUG_BG_CYAN</p></td>
 <td class="enum_member_description">
 <p>Use cyan as background color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-BG-WHITE:CAPS"></a>GST_DEBUG_BG_WHITE</p></td>
 <td class="enum_member_description">
 <p>Use white as background color.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-BOLD:CAPS"></a>GST_DEBUG_BOLD</p></td>
 <td class="enum_member_description">
 <p>Make the output bold.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-UNDERLINE:CAPS"></a>GST_DEBUG_UNDERLINE</p></td>
 <td class="enum_member_description">
 <p>Underline the output.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GstDebugColorMode"></a><h3>enum GstDebugColorMode</h3>
 <div class="refsect3">
 <a name="GstDebugColorMode.members"></a><h4>Members</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="300px" class="enum_members_name">
 <col class="enum_members_description">
 <col width="200px" class="enum_members_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-COLOR-MODE-OFF:CAPS"></a>GST_DEBUG_COLOR_MODE_OFF</p></td>
 <td class="enum_member_description">
 <p>Do not use colors in logs.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-COLOR-MODE-ON:CAPS"></a>GST_DEBUG_COLOR_MODE_ON</p></td>
 <td class="enum_member_description">
 <p>Paint logs in a platform-specific way.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-COLOR-MODE-UNIX:CAPS"></a>GST_DEBUG_COLOR_MODE_UNIX</p></td>
 <td class="enum_member_description">
 <p>Paint logs with UNIX terminal color codes
                             no matter what platform GStreamer is running on.</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GstDebugCategory"></a><h3>struct GstDebugCategory</h3>
 <pre class="programlisting">struct GstDebugCategory {
 };
 </pre>
 <p>This is the struct that describes the categories. Once initialized with
 <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-CATEGORY-INIT:CAPS" title="GST_DEBUG_CATEGORY_INIT()"><span class="type">GST_DEBUG_CATEGORY_INIT</span></a>, its values can't be changed anymore.</p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GstDebugGraphDetails"></a><h3>enum GstDebugGraphDetails</h3>
 <p>Available details for pipeline graphs produced by <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-BIN-TO-DOT-FILE:CAPS" title="GST_DEBUG_BIN_TO_DOT_FILE()"><code class="function">GST_DEBUG_BIN_TO_DOT_FILE()</code></a>
 and <a class="link" href="gstreamer-GstInfo.html#GST-DEBUG-BIN-TO-DOT-FILE-WITH-TS:CAPS" title="GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS()"><code class="function">GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS()</code></a>.</p>
 <div class="refsect3">
 <a name="GstDebugGraphDetails.members"></a><h4>Members</h4>
 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 <colgroup>
 <col width="300px" class="enum_members_name">
 <col class="enum_members_description">
 <col width="200px" class="enum_members_annotations">
 </colgroup>
 <tbody>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-GRAPH-SHOW-MEDIA-TYPE:CAPS"></a>GST_DEBUG_GRAPH_SHOW_MEDIA_TYPE</p></td>
 <td class="enum_member_description">
 <p>show caps-name on edges</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-GRAPH-SHOW-CAPS-DETAILS:CAPS"></a>GST_DEBUG_GRAPH_SHOW_CAPS_DETAILS</p></td>
 <td class="enum_member_description">
 <p>show caps-details on edges</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-GRAPH-SHOW-NON-DEFAULT-PARAMS:CAPS"></a>GST_DEBUG_GRAPH_SHOW_NON_DEFAULT_PARAMS</p></td>
 <td class="enum_member_description">
 <p>show modified parameters on
                                           elements</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-GRAPH-SHOW-STATES:CAPS"></a>GST_DEBUG_GRAPH_SHOW_STATES</p></td>
 <td class="enum_member_description">
 <p>show element states</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-GRAPH-SHOW-FULL-PARAMS:CAPS"></a>GST_DEBUG_GRAPH_SHOW_FULL_PARAMS</p></td>
 <td class="enum_member_description">
 <p>show full element parameter values even
                                    if they are very long</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-GRAPH-SHOW-ALL:CAPS"></a>GST_DEBUG_GRAPH_SHOW_ALL</p></td>
 <td class="enum_member_description">
 <p>show all the typical details that one might want</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 <tr>
 <td class="enum_member_name"><p><a name="GST-DEBUG-GRAPH-SHOW-VERBOSE:CAPS"></a>GST_DEBUG_GRAPH_SHOW_VERBOSE</p></td>
 <td class="enum_member_description">
 <p>show all details regardless of how large or
                                verbose they make the resulting output</p>
 </td>
 <td class="enum_member_annotations"> </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-FUNCTION:CAPS"></a><h3>GST_FUNCTION</h3>
 <pre class="programlisting">#  define GST_FUNCTION     ((const char*) (__func__))
 </pre>
 <p>This macro should evaluate to the name of the current function and be should
 be defined when configuring your project, as it is compiler dependant. If it
 is not defined, some default value is used. It is used to provide debugging
 output with the function name of the message.</p>
 <p>Note that this is different from G_STRFUNC as we do not want the full
 function signature in C++ code.</p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CAT-DEFAULT:CAPS"></a><h3>GST_CAT_DEFAULT</h3>
 <pre class="programlisting">GST_EXPORT GstDebugCategory * GST_CAT_DEFAULT;
 </pre>
 <p>Default gstreamer core debug log category. Please define your own.</p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-TIME-FORMAT:CAPS"></a><h3>GST_TIME_FORMAT</h3>
 <pre class="programlisting">#define GST_TIME_FORMAT "u:%02u:%02u.%09u"
 </pre>
 <p>A string that can be used in printf-like format strings to display a
 <a class="link" href="GstClock.html#GstClockTime" title="GstClockTime"><span class="type">GstClockTime</span></a> value in h:m:s format.  Use <a class="link" href="gstreamer-GstInfo.html#GST-TIME-ARGS:CAPS" title="GST_TIME_ARGS()"><code class="function">GST_TIME_ARGS()</code></a> to construct
 the matching arguments.</p>
 <p>Example:</p>
 <div class="informalexample">
   <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
     <tbody>
       <tr>
         <td class="listing_lines" align="right"><pre>1</pre></td>
         <td class="listing_code"><pre class="programlisting"><span class="function">printf</span><span class="gtkdoc opt">(</span><span class="string">&quot;%&quot;</span> GST_TIME_FORMAT <span class="string">&quot;</span><span class="gtkdoc esc">\n</span><span class="string">&quot;</span><span class="gtkdoc opt">,</span> <span class="function"><a href="gstreamer-GstInfo.html#GST-TIME-ARGS:CAPS">GST_TIME_ARGS</a></span><span class="gtkdoc opt">(</span>ts<span class="gtkdoc opt">));</span></pre></td>
       </tr>
     </tbody>
   </table>
 </div>

 <p></p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-STIME-FORMAT:CAPS"></a><h3>GST_STIME_FORMAT</h3>
 <pre class="programlisting">#define GST_STIME_FORMAT "c%" GST_TIME_FORMAT
 </pre>
 <p>A string that can be used in printf-like format strings to display a signed
 <a class="link" href="GstClock.html#GstClockTimeDiff" title="GstClockTimeDiff"><span class="type">GstClockTimeDiff</span></a> or <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint64"><span class="type">gint64</span></a> value in h:m:s format.  Use <a class="link" href="gstreamer-GstInfo.html#GST-TIME-ARGS:CAPS" title="GST_TIME_ARGS()"><code class="function">GST_TIME_ARGS()</code></a> to
 construct the matching arguments.</p>
 <p>Example:</p>
 <div class="informalexample">
   <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
     <tbody>
       <tr>
         <td class="listing_lines" align="right"><pre>1</pre></td>
         <td class="listing_code"><pre class="programlisting"><span class="function">printf</span><span class="gtkdoc opt">(</span><span class="string">&quot;%&quot;</span> GST_STIME_FORMAT <span class="string">&quot;</span><span class="gtkdoc esc">\n</span><span class="string">&quot;</span><span class="gtkdoc opt">,</span> <span class="function"><a href="gstreamer-GstInfo.html#GST-STIME-ARGS:CAPS">GST_STIME_ARGS</a></span><span class="gtkdoc opt">(</span>ts<span class="gtkdoc opt">));</span></pre></td>
       </tr>
     </tbody>
   </table>
 </div>

 <p></p>
 <p class="since">Since: <a class="link" href="ix05.html#api-index-1.6">1.6</a></p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-PTR-FORMAT:CAPS"></a><h3>GST_PTR_FORMAT</h3>
 <pre class="programlisting">#define GST_PTR_FORMAT     "p\aA"
 </pre>
 <p>printf format type used to debug GStreamer types. You can use this in
 combination with GStreamer's debug logging system as well as the functions
 <a class="link" href="gstreamer-GstInfo.html#gst-info-vasprintf" title="gst_info_vasprintf ()"><code class="function">gst_info_vasprintf()</code></a>, <a class="link" href="gstreamer-GstInfo.html#gst-info-strdup-vprintf" title="gst_info_strdup_vprintf ()"><code class="function">gst_info_strdup_vprintf()</code></a> and <a class="link" href="gstreamer-GstInfo.html#gst-info-strdup-printf" title="gst_info_strdup_printf ()"><code class="function">gst_info_strdup_printf()</code></a>
 to pretty-print the following types: <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>, <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a>,
 <a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a>, <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a>, <a class="link" href="GstDateTime.html" title="GstDateTime"><span class="type">GstDateTime</span></a>, <a class="link" href="GstBuffer.html" title="GstBuffer"><span class="type">GstBuffer</span></a>, <a class="link" href="GstBufferList.html" title="GstBufferList"><span class="type">GstBufferList</span></a>,
 <a class="link" href="GstMessage.html" title="GstMessage"><span class="type">GstMessage</span></a>, <a class="link" href="GstEvent.html" title="GstEvent"><span class="type">GstEvent</span></a>, <a class="link" href="GstQuery.html" title="GstQuery"><span class="type">GstQuery</span></a>, <a class="link" href="GstContext.html" title="GstContext"><span class="type">GstContext</span></a>, <a class="link" href="GstPad.html" title="GstPad"><span class="type">GstPad</span></a>, <a class="link" href="GstObject.html" title="GstObject"><span class="type">GstObject</span></a>. All
 <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct"><span class="type">GObject</span></a> types will be printed as typename plus pointer, and everything
 else will simply be printed as pointer address.</p>
 <p>This can only be used on types whose size is &gt;= sizeof(gpointer).</p>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-SEGMENT-FORMAT:CAPS"></a><h3>GST_SEGMENT_FORMAT</h3>
 <pre class="programlisting">#define GST_SEGMENT_FORMAT "p\aB"
 </pre>
 <p>printf format type used to debug GStreamer segments. You can use this in
 combination with GStreamer's debug logging system as well as the functions
 <a class="link" href="gstreamer-GstInfo.html#gst-info-vasprintf" title="gst_info_vasprintf ()"><code class="function">gst_info_vasprintf()</code></a>, <a class="link" href="gstreamer-GstInfo.html#gst-info-strdup-vprintf" title="gst_info_strdup_vprintf ()"><code class="function">gst_info_strdup_vprintf()</code></a> and <a class="link" href="gstreamer-GstInfo.html#gst-info-strdup-printf" title="gst_info_strdup_printf ()"><code class="function">gst_info_strdup_printf()</code></a>
 to pretty-print <a class="link" href="GstSegment.html" title="GstSegment"><span class="type">GstSegment</span></a> structures.
 This can only be used on pointers to GstSegment structures.</p>
 </div>
 </div>
 <div class="refsect1">
 <a name="gstreamer-GstInfo.see-also"></a><h2>See Also</h2>
 <p><a class="link" href="gst-running.html" title="Running GStreamer Applications"><span class="type">gst-running</span></a> for command line parameters
 and environment variables that affect the debugging output.</p>
 </div>
 </div>
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