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| <a href="#gst-plugins-good-plugins-qtmux.synopsis" class="shortcut">Top</a> |
| | |
| <a href="#gst-plugins-good-plugins-qtmux.description" class="shortcut">Description</a> |
| | |
| <a href="#gst-plugins-good-plugins-qtmux.object-hierarchy" class="shortcut">Object Hierarchy</a> |
| | |
| <a href="#gst-plugins-good-plugins-qtmux.implemented-interfaces" class="shortcut">Implemented Interfaces</a> |
| | |
| <a href="#gst-plugins-good-plugins-qtmux.properties" class="shortcut">Properties</a> |
| </td></tr> |
| </table> |
| <div class="refentry"> |
| <a name="gst-plugins-good-plugins-qtmux"></a><div class="titlepage"></div> |
| <div class="refnamediv"><table width="100%"><tr> |
| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-qtmux.top_of_page"></a>qtmux</span></h2> |
| <p>qtmux — Muxer for quicktime(.mov) files</p> |
| </td> |
| <td valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsynopsisdiv"> |
| <a name="gst-plugins-good-plugins-qtmux.synopsis"></a><h2>Synopsis</h2> |
| <a name="GstQTMux"></a><pre class="synopsis">struct <a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux-struct" title="struct GstQTMux">GstQTMux</a>; |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-qtmux.object-hierarchy"></a><h2>Object Hierarchy</h2> |
| <pre class="synopsis"> |
| <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a> |
| +----<a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> |
| +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a> |
| +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a> |
| +----GstQTMux |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-qtmux.implemented-interfaces"></a><h2>Implemented Interfaces</h2> |
| <p> |
| GstQTMux implements |
| <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstTagSetter.html">GstTagSetter</a> and GstTagXmpWriter.</p> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-qtmux.properties"></a><h2>Properties</h2> |
| <pre class="synopsis"> |
| "<a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux--dts-method" title='The "dts-method" property'>dts-method</a>" <span class="type">GstQTMuxDtsMethods</span> : Read / Write / Construct |
| "<a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux--faststart" title='The "faststart" property'>faststart</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write |
| "<a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux--faststart-file" title='The "faststart-file" property'>faststart-file</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read / Write / Construct |
| "<a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux--fragment-duration" title='The "fragment-duration" property'>fragment-duration</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> : Read / Write / Construct |
| "<a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux--moov-recovery-file" title='The "moov-recovery-file" property'>moov-recovery-file</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read / Write / Construct |
| "<a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux--movie-timescale" title='The "movie-timescale" property'>movie-timescale</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> : Read / Write / Construct |
| "<a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux--presentation-time" title='The "presentation-time" property'>presentation-time</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write / Construct |
| "<a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux--streamable" title='The "streamable" property'>streamable</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write / Construct |
| "<a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux--trak-timescale" title='The "trak-timescale" property'>trak-timescale</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> : Read / Write / Construct |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-qtmux.description"></a><h2>Description</h2> |
| <p> |
| This element merges streams (audio and video) into QuickTime(.mov) files. |
| </p> |
| <p> |
| The following background intends to explain why various similar muxers |
| are present in this plugin. |
| </p> |
| <p> |
| The <a class="ulink" href="http://www.apple.com/quicktime/resources/qtfileformat.pdf" target="_top"> |
| QuickTime file format specification</a> served as basis for the MP4 file |
| format specification (mp4mux), and as such the QuickTime file structure is |
| nearly identical to the so-called ISO Base Media file format defined in |
| ISO 14496-12 (except for some media specific parts). |
| In turn, the latter ISO Base Media format was further specialized as a |
| Motion JPEG-2000 file format in ISO 15444-3 (mj2mux) |
| and in various 3GPP(2) specs (gppmux). |
| The fragmented file features defined (only) in ISO Base Media are used by |
| ISMV files making up (a.o.) Smooth Streaming (ismlmux). |
| </p> |
| <p> |
| A few properties (<a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux--movie-timescale" title='The "movie-timescale" property'>movie-timescale</a>, |
| <a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux--trak-timescale" title='The "trak-timescale" property'>trak-timescale</a>) allow adjusting |
| some technical parameters, which might be useful in (rare) cases to resolve |
| compatibility issues in some situations. |
| </p> |
| <p> |
| Some other properties influence the result more fundamentally. |
| A typical mov/mp4 file's metadata (aka moov) is located at the end of the file, |
| somewhat contrary to this usually being called "the header". |
| However, a <a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux--faststart" title='The "faststart" property'>faststart</a> file will |
| (with some effort) arrange this to be located near start of the file, |
| which then allows it e.g. to be played while downloading. |
| Alternatively, rather than having one chunk of metadata at start (or end), |
| there can be some metadata at start and most of the other data can be spread |
| out into fragments of <a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux--fragment-duration" title='The "fragment-duration" property'>fragment-duration</a>. |
| If such fragmented layout is intended for streaming purposes, then |
| <a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux--streamable" title='The "streamable" property'>streamable</a> allows foregoing to add |
| index metadata (at the end of file). |
| </p> |
| <p> |
| <a class="link" href="gst-plugins-good-plugins-qtmux.html#GstQTMux--dts-method" title='The "dts-method" property'>dts-method</a> allows selecting a |
| method for managing input timestamps (stay tuned for 0.11 to have this |
| automagically settled). The default delta/duration method should handle nice |
| (aka perfect streams) just fine, but may experience problems otherwise |
| (e.g. input stream with re-ordered B-frames and/or with frame dropping). |
| The re-ordering approach re-assigns incoming timestamps in ascending order |
| to incoming buffers and offers an alternative in such cases. In cases where |
| that might fail, the remaining method can be tried, which is exact and |
| according to specs, but might experience playback on not so spec-wise players. |
| Note that this latter approach also requires one to enable |
| presentation-timestamp. |
| </p> |
| <p> |
| </p> |
| <div class="refsect2"> |
| <a name="idp17553632"></a><h3>Example pipelines</h3> |
| <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">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> v4l2src num<span class="gtkdoc opt">-</span>buffers<span class="gtkdoc opt">=</span><span class="number">500</span> <span class="gtkdoc opt">!</span> video<span class="gtkdoc opt">/</span>x<span class="gtkdoc opt">-</span>raw<span class="gtkdoc opt">,</span>width<span class="gtkdoc opt">=</span><span class="number">320</span><span class="gtkdoc opt">,</span>height<span class="gtkdoc opt">=</span><span class="number">240</span> <span class="gtkdoc opt">!</span> videoconvert <span class="gtkdoc opt">!</span> qtmux <span class="gtkdoc opt">!</span> filesink location<span class="gtkdoc opt">=</span>video<span class="gtkdoc opt">.</span>mov</pre></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| |
| Records a video stream captured from a v4l2 device and muxes it into a qt file. |
| </div> |
| <p> |
| </p> |
| <p> |
| Last reviewed on 2010-12-03 |
| </p> |
| <div class="refsynopsisdiv"> |
| <h2>Synopsis</h2> |
| <div class="refsect2"> |
| <a name="idp18485312"></a><h3>Element Information</h3> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term">plugin</span></p></td> |
| <td> |
| <a class="link" href="gst-plugins-good-plugins-plugin-isomp4.html#plugin-isomp4">isomp4</a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term">author</span></p></td> |
| <td>Thiago Sousa Santos <thiagoss@embedded.ufcg.edu.br></td> |
| </tr> |
| <tr> |
| <td><p><span class="term">class</span></p></td> |
| <td>Codec/Muxer</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="idp9934576"></a><h3>Element Pads</h3> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term">name</span></p></td> |
| <td>audio_%u</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">direction</span></p></td> |
| <td>sink</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">presence</span></p></td> |
| <td>request</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">details</span></p></td> |
| <td>audio/x-raw, format=(string){ S8, U8 }, layout=(string)interleaved, channels=(int)[ 1, 2 ], rate=(int)[ 1, 2147483647 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> audio/x-raw, format=(string){ S16LE, S16BE }, layout=(string)interleaved, channels=(int)[ 1, 2 ], rate=(int)[ 1, 2147483647 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> audio/x-raw, format=(string){ S24LE, S24BE }, layout=(string)interleaved, channels=(int)[ 1, 2 ], rate=(int)[ 1, 2147483647 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> audio/x-raw, format=(string){ S32LE, S32BE }, layout=(string)interleaved, channels=(int)[ 1, 2 ], rate=(int)[ 1, 2147483647 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> audio/mpeg, mpegversion=(int)1, layer=(int)3, channels=(int)[ 1, 2 ], rate=(int)[ 1, 2147483647 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> audio/mpeg, mpegversion=(int)4, stream-format=(string)raw, channels=(int)[ 1, 8 ], rate=(int)[ 1, 2147483647 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> audio/x-adpcm, layout=(string)dvi, block_align=(int)[ 64, 8096 ], channels=(int)[ 1, 2 ], rate=(int)[ 1, 2147483647 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> audio/x-alaw, channels=(int)[ 1, 2 ], rate=(int)[ 1, 2147483647 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> audio/AMR, rate=(int)8000, channels=(int)[ 1, 2 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> audio/AMR-WB, rate=(int)16000, channels=(int)[ 1, 2 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> audio/x-alac, channels=(int)[ 1, 2 ], rate=(int)[ 1, 2147483647 ]</td> |
| </tr> |
| </tbody> |
| </table></div> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term">name</span></p></td> |
| <td>video_%u</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">direction</span></p></td> |
| <td>sink</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">presence</span></p></td> |
| <td>request</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">details</span></p></td> |
| <td>video/x-raw, format=(string){ RGB, UYVY }, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/mpeg, mpegversion=(int)4, systemstream=(boolean)false, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-divx, divxversion=(int)5, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-h263, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-h264, stream-format=(string)avc, alignment=(string)au, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-svq, svqversion=(int)3, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-dv, systemstream=(boolean)false, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> image/jpeg, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-vp8, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-dirac, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/x-qt-part, width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td> |
| </tr> |
| </tbody> |
| </table></div> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term">name</span></p></td> |
| <td>src</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">direction</span></p></td> |
| <td>source</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">presence</span></p></td> |
| <td>always</td> |
| </tr> |
| <tr> |
| <td><p><span class="term">details</span></p></td> |
| <td>video/quicktime, variant=(string)apple</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"></span></p></td> |
| <td> video/quicktime</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <p> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-qtmux.details"></a><h2>Details</h2> |
| <div class="refsect2"> |
| <a name="GstQTMux-struct"></a><h3>struct GstQTMux</h3> |
| <pre class="programlisting">struct GstQTMux;</pre> |
| <p> |
| </p> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-qtmux.property-details"></a><h2>Property Details</h2> |
| <div class="refsect2"> |
| <a name="GstQTMux--dts-method"></a><h3>The <code class="literal">"dts-method"</code> property</h3> |
| <pre class="programlisting"> "dts-method" <span class="type">GstQTMuxDtsMethods</span> : Read / Write / Construct</pre> |
| <p>Method to determine DTS time.</p> |
| <p>Default value: reorder</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstQTMux--faststart"></a><h3>The <code class="literal">"faststart"</code> property</h3> |
| <pre class="programlisting"> "faststart" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write</pre> |
| <p>If the file should be formatted for faststart (headers first).</p> |
| <p>Default value: FALSE</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstQTMux--faststart-file"></a><h3>The <code class="literal">"faststart-file"</code> property</h3> |
| <pre class="programlisting"> "faststart-file" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read / Write / Construct</pre> |
| <p>File that will be used temporarily to store data from the stream when creating a faststart file. If null a filepath will be created automatically.</p> |
| <p>Default value: NULL</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstQTMux--fragment-duration"></a><h3>The <code class="literal">"fragment-duration"</code> property</h3> |
| <pre class="programlisting"> "fragment-duration" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> : Read / Write / Construct</pre> |
| <p>Fragment durations in ms (produce a fragmented file if > 0).</p> |
| <p>Default value: 0</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstQTMux--moov-recovery-file"></a><h3>The <code class="literal">"moov-recovery-file"</code> property</h3> |
| <pre class="programlisting"> "moov-recovery-file" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read / Write / Construct</pre> |
| <p>File to be used to store data for moov atom making movie file recovery possible in case of a crash during muxing. Null for disabled. (Experimental).</p> |
| <p>Default value: NULL</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstQTMux--movie-timescale"></a><h3>The <code class="literal">"movie-timescale"</code> property</h3> |
| <pre class="programlisting"> "movie-timescale" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> : Read / Write / Construct</pre> |
| <p>Timescale to use in the movie (units per second).</p> |
| <p>Allowed values: >= 1</p> |
| <p>Default value: 1000</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstQTMux--presentation-time"></a><h3>The <code class="literal">"presentation-time"</code> property</h3> |
| <pre class="programlisting"> "presentation-time" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write / Construct</pre> |
| <p>Calculate and include presentation/composition time (in addition to decoding time).</p> |
| <p>Default value: TRUE</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstQTMux--streamable"></a><h3>The <code class="literal">"streamable"</code> property</h3> |
| <pre class="programlisting"> "streamable" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write / Construct</pre> |
| <p>If set to true, the output should be as if it is to be streamed and hence no indexes written or duration written.</p> |
| <p>Default value: FALSE</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstQTMux--trak-timescale"></a><h3>The <code class="literal">"trak-timescale"</code> property</h3> |
| <pre class="programlisting"> "trak-timescale" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> : Read / Write / Construct</pre> |
| <p>Timescale to use for the tracks (units per second, 0 is automatic).</p> |
| <p>Default value: 0</p> |
| </div> |
| </div> |
| </div> |
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