| /* GStreamer |
| * Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| /** |
| * SECTION:element-uridecodebin |
| * @title: uridecodebin |
| * |
| * Decodes data from a URI into raw media. It selects a source element that can |
| * handle the given #GstURIDecodeBin:uri scheme and connects it to a decodebin. |
| */ |
| |
| /* FIXME 0.11: suppress warnings for deprecated API such as GValueArray |
| * with newer GLib versions (>= 2.31.0) */ |
| #define GLIB_DISABLE_DEPRECATION_WARNINGS |
| |
| #ifdef HAVE_CONFIG_H |
| # include "config.h" |
| #endif |
| |
| #include <string.h> |
| |
| #include <gst/gst.h> |
| #include <gst/gst-i18n-plugin.h> |
| #include <gst/pbutils/missing-plugins.h> |
| |
| #include "gstplay-enum.h" |
| #include "gstrawcaps.h" |
| #include "gstplayback.h" |
| #include "gstplaybackutils.h" |
| |
| #define GST_TYPE_URI_DECODE_BIN \ |
| (gst_uri_decode_bin_get_type()) |
| #define GST_URI_DECODE_BIN(obj) \ |
| (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_URI_DECODE_BIN,GstURIDecodeBin)) |
| #define GST_URI_DECODE_BIN_CLASS(klass) \ |
| (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_URI_DECODE_BIN,GstURIDecodeBinClass)) |
| #define GST_IS_URI_DECODE_BIN(obj) \ |
| (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_URI_DECODE_BIN)) |
| #define GST_IS_URI_DECODE_BIN_CLASS(klass) \ |
| (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_URI_DECODE_BIN)) |
| #define GST_URI_DECODE_BIN_CAST(obj) ((GstURIDecodeBin *) (obj)) |
| |
| typedef struct _GstURIDecodeBin GstURIDecodeBin; |
| typedef struct _GstURIDecodeBinClass GstURIDecodeBinClass; |
| |
| #define GST_URI_DECODE_BIN_LOCK(dec) (g_mutex_lock(&((GstURIDecodeBin*)(dec))->lock)) |
| #define GST_URI_DECODE_BIN_UNLOCK(dec) (g_mutex_unlock(&((GstURIDecodeBin*)(dec))->lock)) |
| |
| typedef struct _GstURIDecodeBinStream |
| { |
| gulong probe_id; |
| guint bitrate; |
| } GstURIDecodeBinStream; |
| |
| /** |
| * GstURIDecodeBin |
| * |
| * uridecodebin element struct |
| */ |
| struct _GstURIDecodeBin |
| { |
| GstBin parent_instance; |
| |
| GMutex lock; /* lock for constructing */ |
| |
| GMutex factories_lock; |
| guint32 factories_cookie; |
| GList *factories; /* factories we can use for selecting elements */ |
| |
| gchar *uri; |
| guint64 connection_speed; |
| GstCaps *caps; |
| gchar *encoding; |
| |
| gboolean is_stream; |
| gboolean is_adaptive; |
| gboolean need_queue; |
| guint64 buffer_duration; /* When buffering, buffer duration (ns) */ |
| guint buffer_size; /* When buffering, buffer size (bytes) */ |
| gboolean download; |
| gboolean use_buffering; |
| |
| GstElement *source; |
| GstElement *queue; |
| GstElement *typefind; |
| guint have_type_id; /* have-type signal id from typefind */ |
| GSList *decodebins; |
| GSList *pending_decodebins; |
| GHashTable *streams; |
| guint numpads; |
| |
| /* for dynamic sources */ |
| guint src_np_sig_id; /* new-pad signal id */ |
| guint src_nmp_sig_id; /* no-more-pads signal id */ |
| gint pending; |
| GList *missing_plugin_errors; |
| |
| gboolean async_pending; /* async-start has been emitted */ |
| |
| gboolean expose_allstreams; /* Whether to expose unknow type streams or not */ |
| |
| guint64 ring_buffer_max_size; /* 0 means disabled */ |
| }; |
| |
| struct _GstURIDecodeBinClass |
| { |
| GstBinClass parent_class; |
| |
| /* signal fired when we found a pad that we cannot decode */ |
| void (*unknown_type) (GstElement * element, GstPad * pad, GstCaps * caps); |
| |
| /* signal fired to know if we continue trying to decode the given caps */ |
| gboolean (*autoplug_continue) (GstElement * element, GstPad * pad, |
| GstCaps * caps); |
| /* signal fired to get a list of factories to try to autoplug */ |
| GValueArray *(*autoplug_factories) (GstElement * element, GstPad * pad, |
| GstCaps * caps); |
| /* signal fired to sort the factories */ |
| GValueArray *(*autoplug_sort) (GstElement * element, GstPad * pad, |
| GstCaps * caps, GValueArray * factories); |
| /* signal fired to select from the proposed list of factories */ |
| GstAutoplugSelectResult (*autoplug_select) (GstElement * element, |
| GstPad * pad, GstCaps * caps, GstElementFactory * factory); |
| /* signal fired when a autoplugged element that is not linked downstream |
| * or exposed wants to query something */ |
| gboolean (*autoplug_query) (GstElement * element, GstPad * pad, |
| GstQuery * query); |
| |
| /* emitted when all data is decoded */ |
| void (*drained) (GstElement * element); |
| }; |
| |
| static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src_%u", |
| GST_PAD_SRC, |
| GST_PAD_SOMETIMES, |
| GST_STATIC_CAPS_ANY); |
| |
| static GstStaticCaps default_raw_caps = GST_STATIC_CAPS (DEFAULT_RAW_CAPS); |
| |
| GST_DEBUG_CATEGORY_STATIC (gst_uri_decode_bin_debug); |
| #define GST_CAT_DEFAULT gst_uri_decode_bin_debug |
| |
| /* signals */ |
| enum |
| { |
| SIGNAL_UNKNOWN_TYPE, |
| SIGNAL_AUTOPLUG_CONTINUE, |
| SIGNAL_AUTOPLUG_FACTORIES, |
| SIGNAL_AUTOPLUG_SELECT, |
| SIGNAL_AUTOPLUG_SORT, |
| SIGNAL_AUTOPLUG_QUERY, |
| SIGNAL_DRAINED, |
| SIGNAL_SOURCE_SETUP, |
| LAST_SIGNAL |
| }; |
| |
| /* properties */ |
| #define DEFAULT_PROP_URI NULL |
| #define DEFAULT_PROP_SOURCE NULL |
| #define DEFAULT_CONNECTION_SPEED 0 |
| #define DEFAULT_CAPS (gst_static_caps_get (&default_raw_caps)) |
| #define DEFAULT_SUBTITLE_ENCODING NULL |
| #define DEFAULT_BUFFER_DURATION -1 |
| #define DEFAULT_BUFFER_SIZE -1 |
| #define DEFAULT_DOWNLOAD FALSE |
| #define DEFAULT_USE_BUFFERING FALSE |
| #define DEFAULT_EXPOSE_ALL_STREAMS TRUE |
| #define DEFAULT_RING_BUFFER_MAX_SIZE 0 |
| |
| enum |
| { |
| PROP_0, |
| PROP_URI, |
| PROP_SOURCE, |
| PROP_CONNECTION_SPEED, |
| PROP_CAPS, |
| PROP_SUBTITLE_ENCODING, |
| PROP_BUFFER_SIZE, |
| PROP_BUFFER_DURATION, |
| PROP_DOWNLOAD, |
| PROP_USE_BUFFERING, |
| PROP_EXPOSE_ALL_STREAMS, |
| PROP_RING_BUFFER_MAX_SIZE |
| }; |
| |
| static guint gst_uri_decode_bin_signals[LAST_SIGNAL] = { 0 }; |
| |
| GType gst_uri_decode_bin_get_type (void); |
| #define gst_uri_decode_bin_parent_class parent_class |
| G_DEFINE_TYPE (GstURIDecodeBin, gst_uri_decode_bin, GST_TYPE_BIN); |
| |
| static void remove_decoders (GstURIDecodeBin * bin, gboolean force); |
| static void gst_uri_decode_bin_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec); |
| static void gst_uri_decode_bin_get_property (GObject * object, guint prop_id, |
| GValue * value, GParamSpec * pspec); |
| static void gst_uri_decode_bin_finalize (GObject * obj); |
| |
| static void handle_message (GstBin * bin, GstMessage * msg); |
| |
| static gboolean gst_uri_decode_bin_query (GstElement * element, |
| GstQuery * query); |
| static GstStateChangeReturn gst_uri_decode_bin_change_state (GstElement * |
| element, GstStateChange transition); |
| |
| static gboolean |
| _gst_boolean_accumulator (GSignalInvocationHint * ihint, |
| GValue * return_accu, const GValue * handler_return, gpointer dummy) |
| { |
| gboolean myboolean; |
| |
| myboolean = g_value_get_boolean (handler_return); |
| if (!(ihint->run_type & G_SIGNAL_RUN_CLEANUP)) |
| g_value_set_boolean (return_accu, myboolean); |
| |
| /* stop emission if FALSE */ |
| return myboolean; |
| } |
| |
| static gboolean |
| _gst_boolean_or_accumulator (GSignalInvocationHint * ihint, |
| GValue * return_accu, const GValue * handler_return, gpointer dummy) |
| { |
| gboolean myboolean; |
| gboolean retboolean; |
| |
| myboolean = g_value_get_boolean (handler_return); |
| retboolean = g_value_get_boolean (return_accu); |
| |
| if (!(ihint->run_type & G_SIGNAL_RUN_CLEANUP)) |
| g_value_set_boolean (return_accu, myboolean || retboolean); |
| |
| return TRUE; |
| } |
| |
| static gboolean |
| _gst_array_accumulator (GSignalInvocationHint * ihint, |
| GValue * return_accu, const GValue * handler_return, gpointer dummy) |
| { |
| gpointer array; |
| |
| array = g_value_get_boxed (handler_return); |
| if (!(ihint->run_type & G_SIGNAL_RUN_CLEANUP)) |
| g_value_set_boxed (return_accu, array); |
| |
| return FALSE; |
| } |
| |
| static gboolean |
| _gst_select_accumulator (GSignalInvocationHint * ihint, |
| GValue * return_accu, const GValue * handler_return, gpointer dummy) |
| { |
| GstAutoplugSelectResult res; |
| |
| res = g_value_get_enum (handler_return); |
| if (!(ihint->run_type & G_SIGNAL_RUN_CLEANUP)) |
| g_value_set_enum (return_accu, res); |
| |
| /* Call the next handler in the chain (if any) when the current callback |
| * returns TRY. This makes it possible to register separate autoplug-select |
| * handlers that implement different TRY/EXPOSE/SKIP strategies. |
| */ |
| if (res == GST_AUTOPLUG_SELECT_TRY) |
| return TRUE; |
| |
| return FALSE; |
| } |
| |
| static gboolean |
| _gst_array_hasvalue_accumulator (GSignalInvocationHint * ihint, |
| GValue * return_accu, const GValue * handler_return, gpointer dummy) |
| { |
| gpointer array; |
| |
| array = g_value_get_boxed (handler_return); |
| if (!(ihint->run_type & G_SIGNAL_RUN_CLEANUP)) |
| g_value_set_boxed (return_accu, array); |
| |
| if (array != NULL) |
| return FALSE; |
| |
| return TRUE; |
| } |
| |
| static gboolean |
| gst_uri_decode_bin_autoplug_continue (GstElement * element, GstPad * pad, |
| GstCaps * caps) |
| { |
| /* by default we always continue */ |
| return TRUE; |
| } |
| |
| /* Must be called with factories lock! */ |
| static void |
| gst_uri_decode_bin_update_factories_list (GstURIDecodeBin * dec) |
| { |
| guint32 cookie; |
| |
| cookie = gst_registry_get_feature_list_cookie (gst_registry_get ()); |
| if (!dec->factories || dec->factories_cookie != cookie) { |
| if (dec->factories) |
| gst_plugin_feature_list_free (dec->factories); |
| dec->factories = |
| gst_element_factory_list_get_elements |
| (GST_ELEMENT_FACTORY_TYPE_DECODABLE, GST_RANK_MARGINAL); |
| dec->factories = |
| g_list_sort (dec->factories, gst_playback_utils_compare_factories_func); |
| dec->factories_cookie = cookie; |
| } |
| } |
| |
| static GValueArray * |
| gst_uri_decode_bin_autoplug_factories (GstElement * element, GstPad * pad, |
| GstCaps * caps) |
| { |
| GList *list, *tmp; |
| GValueArray *result; |
| GstURIDecodeBin *dec = GST_URI_DECODE_BIN_CAST (element); |
| |
| GST_DEBUG_OBJECT (element, "finding factories"); |
| |
| /* return all compatible factories for caps */ |
| g_mutex_lock (&dec->factories_lock); |
| gst_uri_decode_bin_update_factories_list (dec); |
| list = |
| gst_element_factory_list_filter (dec->factories, caps, GST_PAD_SINK, |
| gst_caps_is_fixed (caps)); |
| g_mutex_unlock (&dec->factories_lock); |
| |
| result = g_value_array_new (g_list_length (list)); |
| for (tmp = list; tmp; tmp = tmp->next) { |
| GstElementFactory *factory = GST_ELEMENT_FACTORY_CAST (tmp->data); |
| GValue val = { 0, }; |
| |
| g_value_init (&val, G_TYPE_OBJECT); |
| g_value_set_object (&val, factory); |
| g_value_array_append (result, &val); |
| g_value_unset (&val); |
| } |
| gst_plugin_feature_list_free (list); |
| |
| GST_DEBUG_OBJECT (element, "autoplug-factories returns %p", result); |
| |
| return result; |
| } |
| |
| static GValueArray * |
| gst_uri_decode_bin_autoplug_sort (GstElement * element, GstPad * pad, |
| GstCaps * caps, GValueArray * factories) |
| { |
| return NULL; |
| } |
| |
| static GstAutoplugSelectResult |
| gst_uri_decode_bin_autoplug_select (GstElement * element, GstPad * pad, |
| GstCaps * caps, GstElementFactory * factory) |
| { |
| GST_DEBUG_OBJECT (element, "default autoplug-select returns TRY"); |
| |
| /* Try factory. */ |
| return GST_AUTOPLUG_SELECT_TRY; |
| } |
| |
| static gboolean |
| gst_uri_decode_bin_autoplug_query (GstElement * element, GstPad * pad, |
| GstQuery * query) |
| { |
| /* No query handled here */ |
| return FALSE; |
| } |
| |
| static void |
| gst_uri_decode_bin_class_init (GstURIDecodeBinClass * klass) |
| { |
| GObjectClass *gobject_class; |
| GstElementClass *gstelement_class; |
| GstBinClass *gstbin_class; |
| |
| gobject_class = G_OBJECT_CLASS (klass); |
| gstelement_class = GST_ELEMENT_CLASS (klass); |
| gstbin_class = GST_BIN_CLASS (klass); |
| |
| gobject_class->set_property = gst_uri_decode_bin_set_property; |
| gobject_class->get_property = gst_uri_decode_bin_get_property; |
| gobject_class->finalize = gst_uri_decode_bin_finalize; |
| |
| g_object_class_install_property (gobject_class, PROP_URI, |
| g_param_spec_string ("uri", "URI", "URI to decode", |
| DEFAULT_PROP_URI, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| g_object_class_install_property (gobject_class, PROP_SOURCE, |
| g_param_spec_object ("source", "Source", "Source object used", |
| GST_TYPE_ELEMENT, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); |
| |
| g_object_class_install_property (gobject_class, PROP_CONNECTION_SPEED, |
| g_param_spec_uint64 ("connection-speed", "Connection Speed", |
| "Network connection speed in kbps (0 = unknown)", |
| 0, G_MAXUINT64 / 1000, DEFAULT_CONNECTION_SPEED, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| g_object_class_install_property (gobject_class, PROP_CAPS, |
| g_param_spec_boxed ("caps", "Caps", |
| "The caps on which to stop decoding. (NULL = default)", |
| GST_TYPE_CAPS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| g_object_class_install_property (gobject_class, PROP_SUBTITLE_ENCODING, |
| g_param_spec_string ("subtitle-encoding", "subtitle encoding", |
| "Encoding to assume if input subtitles are not in UTF-8 encoding. " |
| "If not set, the GST_SUBTITLE_ENCODING environment variable will " |
| "be checked for an encoding to use. If that is not set either, " |
| "ISO-8859-15 will be assumed.", NULL, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| g_object_class_install_property (gobject_class, PROP_BUFFER_SIZE, |
| g_param_spec_int ("buffer-size", "Buffer size (bytes)", |
| "Buffer size when buffering streams (-1 default value)", |
| -1, G_MAXINT, DEFAULT_BUFFER_SIZE, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_BUFFER_DURATION, |
| g_param_spec_int64 ("buffer-duration", "Buffer duration (ns)", |
| "Buffer duration when buffering streams (-1 default value)", |
| -1, G_MAXINT64, DEFAULT_BUFFER_DURATION, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| /** |
| * GstURIDecodeBin::download: |
| * |
| * For certain media type, enable download buffering. |
| */ |
| g_object_class_install_property (gobject_class, PROP_DOWNLOAD, |
| g_param_spec_boolean ("download", "Download", |
| "Attempt download buffering when buffering network streams", |
| DEFAULT_DOWNLOAD, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| /** |
| * GstURIDecodeBin::use-buffering: |
| * |
| * Emit BUFFERING messages based on low-/high-percent thresholds of the |
| * demuxed or parsed data. |
| * When download buffering is activated and used for the current media |
| * type, this property does nothing. Otherwise perform buffering on the |
| * demuxed or parsed media. |
| */ |
| g_object_class_install_property (gobject_class, PROP_USE_BUFFERING, |
| g_param_spec_boolean ("use-buffering", "Use Buffering", |
| "Perform buffering on demuxed/parsed media", |
| DEFAULT_USE_BUFFERING, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| /** |
| * GstURIDecodeBin::expose-all-streams |
| * |
| * Expose streams of unknown type. |
| * |
| * If set to %FALSE, then only the streams that can be decoded to the final |
| * caps (see 'caps' property) will have a pad exposed. Streams that do not |
| * match those caps but could have been decoded will not have decoder plugged |
| * in internally and will not have a pad exposed. |
| */ |
| g_object_class_install_property (gobject_class, PROP_EXPOSE_ALL_STREAMS, |
| g_param_spec_boolean ("expose-all-streams", "Expose All Streams", |
| "Expose all streams, including those of unknown type or that don't match the 'caps' property", |
| DEFAULT_EXPOSE_ALL_STREAMS, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| /** |
| * GstURIDecodeBin::ring-buffer-max-size |
| * |
| * The maximum size of the ring buffer in kilobytes. If set to 0, the ring |
| * buffer is disabled. Default is 0. |
| */ |
| g_object_class_install_property (gobject_class, PROP_RING_BUFFER_MAX_SIZE, |
| g_param_spec_uint64 ("ring-buffer-max-size", |
| "Max. ring buffer size (bytes)", |
| "Max. amount of data in the ring buffer (bytes, 0 = ring buffer disabled)", |
| 0, G_MAXUINT, DEFAULT_RING_BUFFER_MAX_SIZE, |
| G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| /** |
| * GstURIDecodeBin::unknown-type: |
| * @bin: The uridecodebin. |
| * @pad: the new pad containing caps that cannot be resolved to a 'final'. |
| * stream type. |
| * @caps: the #GstCaps of the pad that cannot be resolved. |
| * |
| * This signal is emitted when a pad for which there is no further possible |
| * decoding is added to the uridecodebin. |
| */ |
| gst_uri_decode_bin_signals[SIGNAL_UNKNOWN_TYPE] = |
| g_signal_new ("unknown-type", G_TYPE_FROM_CLASS (klass), |
| G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass, unknown_type), |
| NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 2, |
| GST_TYPE_PAD, GST_TYPE_CAPS); |
| |
| /** |
| * GstURIDecodeBin::autoplug-continue: |
| * @bin: The uridecodebin. |
| * @pad: The #GstPad. |
| * @caps: The #GstCaps found. |
| * |
| * This signal is emitted whenever uridecodebin finds a new stream. It is |
| * emitted before looking for any elements that can handle that stream. |
| * |
| * > Invocation of signal handlers stops after the first signal handler |
| * > returns %FALSE. Signal handlers are invoked in the order they were |
| * > connected in. |
| * |
| * Returns: %TRUE if you wish uridecodebin to look for elements that can |
| * handle the given @caps. If %FALSE, those caps will be considered as |
| * final and the pad will be exposed as such (see 'pad-added' signal of |
| * #GstElement). |
| */ |
| gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_CONTINUE] = |
| g_signal_new ("autoplug-continue", G_TYPE_FROM_CLASS (klass), |
| G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass, |
| autoplug_continue), _gst_boolean_accumulator, NULL, |
| g_cclosure_marshal_generic, G_TYPE_BOOLEAN, 2, GST_TYPE_PAD, |
| GST_TYPE_CAPS); |
| |
| /** |
| * GstURIDecodeBin::autoplug-factories: |
| * @bin: The uridecodebin. |
| * @pad: The #GstPad. |
| * @caps: The #GstCaps found. |
| * |
| * This function is emitted when an array of possible factories for @caps on |
| * @pad is needed. Uridecodebin will by default return an array with all |
| * compatible factories, sorted by rank. |
| * |
| * If this function returns NULL, @pad will be exposed as a final caps. |
| * |
| * If this function returns an empty array, the pad will be considered as |
| * having an unhandled type media type. |
| * |
| * > Only the signal handler that is connected first will ever by invoked. |
| * > Don't connect signal handlers with the #G_CONNECT_AFTER flag to this |
| * > signal, they will never be invoked! |
| * |
| * Returns: a #GValueArray* with a list of factories to try. The factories are |
| * by default tried in the returned order or based on the index returned by |
| * "autoplug-select". |
| */ |
| gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_FACTORIES] = |
| g_signal_new ("autoplug-factories", G_TYPE_FROM_CLASS (klass), |
| G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass, |
| autoplug_factories), _gst_array_accumulator, NULL, |
| g_cclosure_marshal_generic, G_TYPE_VALUE_ARRAY, 2, |
| GST_TYPE_PAD, GST_TYPE_CAPS); |
| |
| /** |
| * GstURIDecodeBin::autoplug-sort: |
| * @bin: The uridecodebin. |
| * @pad: The #GstPad. |
| * @caps: The #GstCaps. |
| * @factories: A #GValueArray of possible #GstElementFactory to use. |
| * |
| * Once decodebin has found the possible #GstElementFactory objects to try |
| * for @caps on @pad, this signal is emited. The purpose of the signal is for |
| * the application to perform additional sorting or filtering on the element |
| * factory array. |
| * |
| * The callee should copy and modify @factories or return %NULL if the |
| * order should not change. |
| * |
| * > Invocation of signal handlers stops after one signal handler has |
| * > returned something else than %NULL. Signal handlers are invoked in |
| * > the order they were connected in. |
| * > Don't connect signal handlers with the #G_CONNECT_AFTER flag to this |
| * > signal, they will never be invoked! |
| * |
| * Returns: A new sorted array of #GstElementFactory objects. |
| */ |
| gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_SORT] = |
| g_signal_new ("autoplug-sort", G_TYPE_FROM_CLASS (klass), |
| G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass, autoplug_sort), |
| _gst_array_hasvalue_accumulator, NULL, |
| g_cclosure_marshal_generic, G_TYPE_VALUE_ARRAY, 3, GST_TYPE_PAD, |
| GST_TYPE_CAPS, G_TYPE_VALUE_ARRAY | G_SIGNAL_TYPE_STATIC_SCOPE); |
| |
| /** |
| * GstURIDecodeBin::autoplug-select: |
| * @bin: The uridecodebin. |
| * @pad: The #GstPad. |
| * @caps: The #GstCaps. |
| * @factory: A #GstElementFactory to use. |
| * |
| * This signal is emitted once uridecodebin has found all the possible |
| * #GstElementFactory that can be used to handle the given @caps. For each of |
| * those factories, this signal is emitted. |
| * |
| * The signal handler should return a #GST_TYPE_AUTOPLUG_SELECT_RESULT enum |
| * value indicating what decodebin should do next. |
| * |
| * A value of #GST_AUTOPLUG_SELECT_TRY will try to autoplug an element from |
| * @factory. |
| * |
| * A value of #GST_AUTOPLUG_SELECT_EXPOSE will expose @pad without plugging |
| * any element to it. |
| * |
| * A value of #GST_AUTOPLUG_SELECT_SKIP will skip @factory and move to the |
| * next factory. |
| * |
| * > The signal handler will not be invoked if any of the previously |
| * > registered signal handlers (if any) return a value other than |
| * > GST_AUTOPLUG_SELECT_TRY. Which also means that if you return |
| * > GST_AUTOPLUG_SELECT_TRY from one signal handler, handlers that get |
| * > registered next (again, if any) can override that decision. |
| * |
| * Returns: a #GST_TYPE_AUTOPLUG_SELECT_RESULT that indicates the required |
| * operation. The default handler will always return |
| * #GST_AUTOPLUG_SELECT_TRY. |
| */ |
| gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_SELECT] = |
| g_signal_new ("autoplug-select", G_TYPE_FROM_CLASS (klass), |
| G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass, |
| autoplug_select), _gst_select_accumulator, NULL, |
| g_cclosure_marshal_generic, |
| GST_TYPE_AUTOPLUG_SELECT_RESULT, 3, GST_TYPE_PAD, GST_TYPE_CAPS, |
| GST_TYPE_ELEMENT_FACTORY); |
| |
| /** |
| * GstDecodeBin::autoplug-query: |
| * @bin: The decodebin. |
| * @child: The child element doing the query |
| * @pad: The #GstPad. |
| * @query: The #GstQuery. |
| * |
| * This signal is emitted whenever an autoplugged element that is |
| * not linked downstream yet and not exposed does a query. It can |
| * be used to tell the element about the downstream supported caps |
| * for example. |
| * |
| * Returns: %TRUE if the query was handled, %FALSE otherwise. |
| */ |
| gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_QUERY] = |
| g_signal_new ("autoplug-query", G_TYPE_FROM_CLASS (klass), |
| G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstURIDecodeBinClass, autoplug_query), |
| _gst_boolean_or_accumulator, NULL, g_cclosure_marshal_generic, |
| G_TYPE_BOOLEAN, 3, GST_TYPE_PAD, GST_TYPE_ELEMENT, |
| GST_TYPE_QUERY | G_SIGNAL_TYPE_STATIC_SCOPE); |
| |
| /** |
| * GstURIDecodeBin::drained: |
| * |
| * This signal is emitted when the data for the current uri is played. |
| */ |
| gst_uri_decode_bin_signals[SIGNAL_DRAINED] = |
| g_signal_new ("drained", G_TYPE_FROM_CLASS (klass), |
| G_SIGNAL_RUN_LAST, |
| G_STRUCT_OFFSET (GstURIDecodeBinClass, drained), NULL, NULL, |
| g_cclosure_marshal_generic, G_TYPE_NONE, 0, G_TYPE_NONE); |
| |
| /** |
| * GstURIDecodeBin::source-setup: |
| * @bin: the uridecodebin. |
| * @source: source element |
| * |
| * This signal is emitted after the source element has been created, so |
| * it can be configured by setting additional properties (e.g. set a |
| * proxy server for an http source, or set the device and read speed for |
| * an audio cd source). This is functionally equivalent to connecting to |
| * the notify::source signal, but more convenient. |
| */ |
| gst_uri_decode_bin_signals[SIGNAL_SOURCE_SETUP] = |
| g_signal_new ("source-setup", G_TYPE_FROM_CLASS (klass), |
| G_SIGNAL_RUN_LAST, 0, NULL, NULL, |
| g_cclosure_marshal_generic, G_TYPE_NONE, 1, GST_TYPE_ELEMENT); |
| |
| gst_element_class_add_static_pad_template (gstelement_class, &srctemplate); |
| gst_element_class_set_static_metadata (gstelement_class, |
| "URI Decoder", "Generic/Bin/Decoder", |
| "Autoplug and decode an URI to raw media", |
| "Wim Taymans <wim.taymans@gmail.com>"); |
| |
| gstelement_class->query = GST_DEBUG_FUNCPTR (gst_uri_decode_bin_query); |
| gstelement_class->change_state = |
| GST_DEBUG_FUNCPTR (gst_uri_decode_bin_change_state); |
| |
| gstbin_class->handle_message = GST_DEBUG_FUNCPTR (handle_message); |
| |
| klass->autoplug_continue = |
| GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_continue); |
| klass->autoplug_factories = |
| GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_factories); |
| klass->autoplug_sort = GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_sort); |
| klass->autoplug_select = |
| GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_select); |
| klass->autoplug_query = GST_DEBUG_FUNCPTR (gst_uri_decode_bin_autoplug_query); |
| } |
| |
| static void |
| gst_uri_decode_bin_init (GstURIDecodeBin * dec) |
| { |
| /* first filter out the interesting element factories */ |
| g_mutex_init (&dec->factories_lock); |
| |
| g_mutex_init (&dec->lock); |
| |
| dec->uri = g_strdup (DEFAULT_PROP_URI); |
| dec->connection_speed = DEFAULT_CONNECTION_SPEED; |
| dec->caps = DEFAULT_CAPS; |
| dec->encoding = g_strdup (DEFAULT_SUBTITLE_ENCODING); |
| |
| dec->buffer_duration = DEFAULT_BUFFER_DURATION; |
| dec->buffer_size = DEFAULT_BUFFER_SIZE; |
| dec->download = DEFAULT_DOWNLOAD; |
| dec->use_buffering = DEFAULT_USE_BUFFERING; |
| dec->expose_allstreams = DEFAULT_EXPOSE_ALL_STREAMS; |
| dec->ring_buffer_max_size = DEFAULT_RING_BUFFER_MAX_SIZE; |
| |
| GST_OBJECT_FLAG_SET (dec, GST_ELEMENT_FLAG_SOURCE); |
| gst_bin_set_suppressed_flags (GST_BIN (dec), |
| GST_ELEMENT_FLAG_SOURCE | GST_ELEMENT_FLAG_SINK); |
| } |
| |
| static void |
| gst_uri_decode_bin_finalize (GObject * obj) |
| { |
| GstURIDecodeBin *dec = GST_URI_DECODE_BIN (obj); |
| |
| remove_decoders (dec, TRUE); |
| g_mutex_clear (&dec->lock); |
| g_mutex_clear (&dec->factories_lock); |
| g_free (dec->uri); |
| g_free (dec->encoding); |
| if (dec->factories) |
| gst_plugin_feature_list_free (dec->factories); |
| if (dec->caps) |
| gst_caps_unref (dec->caps); |
| |
| G_OBJECT_CLASS (parent_class)->finalize (obj); |
| } |
| |
| static void |
| gst_uri_decode_bin_set_encoding (GstURIDecodeBin * dec, const gchar * encoding) |
| { |
| GSList *walk; |
| |
| GST_URI_DECODE_BIN_LOCK (dec); |
| |
| /* set property first */ |
| GST_OBJECT_LOCK (dec); |
| g_free (dec->encoding); |
| dec->encoding = g_strdup (encoding); |
| GST_OBJECT_UNLOCK (dec); |
| |
| /* set the property on all decodebins now */ |
| for (walk = dec->decodebins; walk; walk = g_slist_next (walk)) { |
| GObject *decodebin = G_OBJECT (walk->data); |
| |
| g_object_set (decodebin, "subtitle-encoding", encoding, NULL); |
| } |
| GST_URI_DECODE_BIN_UNLOCK (dec); |
| } |
| |
| static void |
| gst_uri_decode_bin_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec) |
| { |
| GstURIDecodeBin *dec = GST_URI_DECODE_BIN (object); |
| |
| switch (prop_id) { |
| case PROP_URI: |
| GST_OBJECT_LOCK (dec); |
| g_free (dec->uri); |
| dec->uri = g_value_dup_string (value); |
| GST_OBJECT_UNLOCK (dec); |
| break; |
| case PROP_CONNECTION_SPEED: |
| GST_OBJECT_LOCK (dec); |
| dec->connection_speed = g_value_get_uint64 (value) * 1000; |
| GST_OBJECT_UNLOCK (dec); |
| break; |
| case PROP_CAPS: |
| GST_OBJECT_LOCK (dec); |
| if (dec->caps) |
| gst_caps_unref (dec->caps); |
| dec->caps = g_value_dup_boxed (value); |
| GST_OBJECT_UNLOCK (dec); |
| break; |
| case PROP_SUBTITLE_ENCODING: |
| gst_uri_decode_bin_set_encoding (dec, g_value_get_string (value)); |
| break; |
| case PROP_BUFFER_SIZE: |
| dec->buffer_size = g_value_get_int (value); |
| break; |
| case PROP_BUFFER_DURATION: |
| dec->buffer_duration = g_value_get_int64 (value); |
| break; |
| case PROP_DOWNLOAD: |
| dec->download = g_value_get_boolean (value); |
| break; |
| case PROP_USE_BUFFERING: |
| dec->use_buffering = g_value_get_boolean (value); |
| break; |
| case PROP_EXPOSE_ALL_STREAMS: |
| dec->expose_allstreams = g_value_get_boolean (value); |
| break; |
| case PROP_RING_BUFFER_MAX_SIZE: |
| dec->ring_buffer_max_size = g_value_get_uint64 (value); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static void |
| gst_uri_decode_bin_get_property (GObject * object, guint prop_id, |
| GValue * value, GParamSpec * pspec) |
| { |
| GstURIDecodeBin *dec = GST_URI_DECODE_BIN (object); |
| |
| switch (prop_id) { |
| case PROP_URI: |
| GST_OBJECT_LOCK (dec); |
| g_value_set_string (value, dec->uri); |
| GST_OBJECT_UNLOCK (dec); |
| break; |
| case PROP_SOURCE: |
| GST_OBJECT_LOCK (dec); |
| g_value_set_object (value, dec->source); |
| GST_OBJECT_UNLOCK (dec); |
| break; |
| case PROP_CONNECTION_SPEED: |
| GST_OBJECT_LOCK (dec); |
| g_value_set_uint64 (value, dec->connection_speed / 1000); |
| GST_OBJECT_UNLOCK (dec); |
| break; |
| case PROP_CAPS: |
| GST_OBJECT_LOCK (dec); |
| g_value_set_boxed (value, dec->caps); |
| GST_OBJECT_UNLOCK (dec); |
| break; |
| case PROP_SUBTITLE_ENCODING: |
| GST_OBJECT_LOCK (dec); |
| g_value_set_string (value, dec->encoding); |
| GST_OBJECT_UNLOCK (dec); |
| break; |
| case PROP_BUFFER_SIZE: |
| GST_OBJECT_LOCK (dec); |
| g_value_set_int (value, dec->buffer_size); |
| GST_OBJECT_UNLOCK (dec); |
| break; |
| case PROP_BUFFER_DURATION: |
| GST_OBJECT_LOCK (dec); |
| g_value_set_int64 (value, dec->buffer_duration); |
| GST_OBJECT_UNLOCK (dec); |
| break; |
| case PROP_DOWNLOAD: |
| g_value_set_boolean (value, dec->download); |
| break; |
| case PROP_USE_BUFFERING: |
| g_value_set_boolean (value, dec->use_buffering); |
| break; |
| case PROP_EXPOSE_ALL_STREAMS: |
| g_value_set_boolean (value, dec->expose_allstreams); |
| break; |
| case PROP_RING_BUFFER_MAX_SIZE: |
| g_value_set_uint64 (value, dec->ring_buffer_max_size); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static void |
| do_async_start (GstURIDecodeBin * dbin) |
| { |
| GstMessage *message; |
| |
| dbin->async_pending = TRUE; |
| |
| message = gst_message_new_async_start (GST_OBJECT_CAST (dbin)); |
| GST_BIN_CLASS (parent_class)->handle_message (GST_BIN_CAST (dbin), message); |
| } |
| |
| static void |
| do_async_done (GstURIDecodeBin * dbin) |
| { |
| GstMessage *message; |
| |
| if (dbin->async_pending) { |
| GST_DEBUG_OBJECT (dbin, "posting ASYNC_DONE"); |
| message = |
| gst_message_new_async_done (GST_OBJECT_CAST (dbin), |
| GST_CLOCK_TIME_NONE); |
| GST_BIN_CLASS (parent_class)->handle_message (GST_BIN_CAST (dbin), message); |
| |
| dbin->async_pending = FALSE; |
| } |
| } |
| |
| #define DEFAULT_QUEUE_SIZE (3 * GST_SECOND) |
| #define DEFAULT_QUEUE_MIN_THRESHOLD ((DEFAULT_QUEUE_SIZE * 30) / 100) |
| #define DEFAULT_QUEUE_THRESHOLD ((DEFAULT_QUEUE_SIZE * 95) / 100) |
| |
| static void |
| unknown_type_cb (GstElement * element, GstPad * pad, GstCaps * caps, |
| GstURIDecodeBin * decoder) |
| { |
| gchar *capsstr; |
| |
| capsstr = gst_caps_to_string (caps); |
| GST_ELEMENT_WARNING (decoder, STREAM, CODEC_NOT_FOUND, |
| (_("No decoder available for type \'%s\'."), capsstr), (NULL)); |
| g_free (capsstr); |
| } |
| |
| /* add a streaminfo that indicates that the stream is handled by the |
| * given element. This usually means that a stream without actual data is |
| * produced but one that is sunken by an element. Examples of this are: |
| * cdaudio, a hardware decoder/sink, dvd meta bins etc... |
| */ |
| static void |
| add_element_stream (GstElement * element, GstURIDecodeBin * decoder) |
| { |
| g_warning ("add element stream"); |
| } |
| |
| /* when the decoder element signals that no more pads will be generated, we |
| * can commit the current group. |
| */ |
| static void |
| no_more_pads_full (GstElement * element, gboolean subs, |
| GstURIDecodeBin * decoder) |
| { |
| gboolean final; |
| |
| /* setup phase */ |
| GST_DEBUG_OBJECT (element, "no more pads, %d pending", decoder->pending); |
| |
| GST_URI_DECODE_BIN_LOCK (decoder); |
| final = (decoder->pending == 0); |
| |
| /* nothing pending, we can exit */ |
| if (final) |
| goto done; |
| |
| /* the object has no pending no_more_pads */ |
| if (!g_object_get_data (G_OBJECT (element), "pending")) |
| goto done; |
| g_object_set_data (G_OBJECT (element), "pending", NULL); |
| |
| decoder->pending--; |
| final = (decoder->pending == 0); |
| |
| done: |
| GST_URI_DECODE_BIN_UNLOCK (decoder); |
| |
| if (final) { |
| /* If we got not a single stream yet, that means that all |
| * decodebins had missing plugins for all of their streams! |
| */ |
| if (!decoder->streams || g_hash_table_size (decoder->streams) == 0) { |
| if (decoder->missing_plugin_errors) { |
| GString *str = g_string_new (""); |
| GList *l; |
| |
| for (l = decoder->missing_plugin_errors; l; l = l->next) { |
| GstMessage *msg = l->data; |
| gchar *debug; |
| |
| gst_message_parse_error (msg, NULL, &debug); |
| g_string_append (str, debug); |
| g_free (debug); |
| gst_message_unref (msg); |
| } |
| g_list_free (decoder->missing_plugin_errors); |
| decoder->missing_plugin_errors = NULL; |
| |
| GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN, (NULL), |
| ("no suitable plugins found:\n%s", str->str)); |
| g_string_free (str, TRUE); |
| } else { |
| GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN, (NULL), |
| ("no suitable plugins found")); |
| } |
| } else { |
| gst_element_no_more_pads (GST_ELEMENT_CAST (decoder)); |
| } |
| do_async_done (decoder); |
| } |
| |
| return; |
| } |
| |
| static void |
| no_more_pads (GstElement * element, GstURIDecodeBin * decoder) |
| { |
| no_more_pads_full (element, FALSE, decoder); |
| } |
| |
| static void |
| source_no_more_pads (GstElement * element, GstURIDecodeBin * bin) |
| { |
| GST_DEBUG_OBJECT (bin, "No more pads in source element %s.", |
| GST_ELEMENT_NAME (element)); |
| |
| g_signal_handler_disconnect (element, bin->src_np_sig_id); |
| bin->src_np_sig_id = 0; |
| g_signal_handler_disconnect (element, bin->src_nmp_sig_id); |
| bin->src_nmp_sig_id = 0; |
| |
| no_more_pads_full (element, FALSE, bin); |
| } |
| |
| static void |
| configure_stream_buffering (GstURIDecodeBin * decoder) |
| { |
| GstElement *queue = NULL; |
| GHashTableIter iter; |
| gpointer key, value; |
| gint bitrate = 0; |
| |
| /* automatic configuration enabled ? */ |
| if (decoder->buffer_size != -1) |
| return; |
| |
| GST_URI_DECODE_BIN_LOCK (decoder); |
| if (decoder->queue) |
| queue = gst_object_ref (decoder->queue); |
| |
| g_hash_table_iter_init (&iter, decoder->streams); |
| while (g_hash_table_iter_next (&iter, &key, &value)) { |
| GstURIDecodeBinStream *stream = value; |
| |
| if (stream->bitrate && bitrate >= 0) |
| bitrate += stream->bitrate; |
| else |
| bitrate = -1; |
| } |
| GST_URI_DECODE_BIN_UNLOCK (decoder); |
| |
| GST_DEBUG_OBJECT (decoder, "overall bitrate %d", bitrate); |
| if (!queue) |
| return; |
| |
| if (bitrate > 0) { |
| guint64 time; |
| guint bytes; |
| |
| /* all streams have a bitrate; |
| * configure queue size based on queue duration using combined bitrate */ |
| g_object_get (queue, "max-size-time", &time, NULL); |
| GST_DEBUG_OBJECT (decoder, "queue buffering time %" GST_TIME_FORMAT, |
| GST_TIME_ARGS (time)); |
| if (time > 0) { |
| bytes = gst_util_uint64_scale (time, bitrate, 8 * GST_SECOND); |
| GST_DEBUG_OBJECT (decoder, "corresponds to buffer size %d", bytes); |
| g_object_set (queue, "max-size-bytes", bytes, NULL); |
| } |
| } |
| |
| gst_object_unref (queue); |
| } |
| |
| static GstPadProbeReturn |
| decoded_pad_event_probe (GstPad * pad, GstPadProbeInfo * info, |
| gpointer user_data) |
| { |
| GstEvent *event = GST_PAD_PROBE_INFO_EVENT (info); |
| GstURIDecodeBin *decoder = user_data; |
| |
| GST_LOG_OBJECT (pad, "%s, decoder %p", GST_EVENT_TYPE_NAME (event), decoder); |
| |
| /* look for a bitrate tag */ |
| switch (GST_EVENT_TYPE (event)) { |
| case GST_EVENT_TAG: |
| { |
| GstTagList *list; |
| guint bitrate = 0; |
| GstURIDecodeBinStream *stream; |
| |
| gst_event_parse_tag (event, &list); |
| if (!gst_tag_list_get_uint_index (list, GST_TAG_NOMINAL_BITRATE, 0, |
| &bitrate)) { |
| gst_tag_list_get_uint_index (list, GST_TAG_BITRATE, 0, &bitrate); |
| } |
| GST_DEBUG_OBJECT (pad, "found bitrate %u", bitrate); |
| if (bitrate) { |
| GST_URI_DECODE_BIN_LOCK (decoder); |
| stream = g_hash_table_lookup (decoder->streams, pad); |
| GST_URI_DECODE_BIN_UNLOCK (decoder); |
| if (stream) { |
| stream->bitrate = bitrate; |
| /* no longer need this probe now */ |
| gst_pad_remove_probe (pad, stream->probe_id); |
| /* configure buffer if possible */ |
| configure_stream_buffering (decoder); |
| } |
| } |
| break; |
| } |
| default: |
| break; |
| } |
| |
| /* never drop */ |
| return GST_PAD_PROBE_OK; |
| } |
| |
| |
| static gboolean |
| copy_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data) |
| { |
| GstPad *gpad = GST_PAD_CAST (user_data); |
| |
| GST_DEBUG_OBJECT (gpad, "store sticky event %" GST_PTR_FORMAT, *event); |
| gst_pad_store_sticky_event (gpad, *event); |
| |
| return TRUE; |
| } |
| |
| /* Called by the signal handlers when a decodebin has found a new raw pad */ |
| static void |
| new_decoded_pad_added_cb (GstElement * element, GstPad * pad, |
| GstURIDecodeBin * decoder) |
| { |
| GstPad *newpad; |
| GstPadTemplate *pad_tmpl; |
| gchar *padname; |
| GstURIDecodeBinStream *stream; |
| |
| GST_DEBUG_OBJECT (element, "new decoded pad, name: <%s>", GST_PAD_NAME (pad)); |
| |
| GST_URI_DECODE_BIN_LOCK (decoder); |
| padname = g_strdup_printf ("src_%u", decoder->numpads); |
| decoder->numpads++; |
| GST_URI_DECODE_BIN_UNLOCK (decoder); |
| |
| pad_tmpl = gst_static_pad_template_get (&srctemplate); |
| newpad = gst_ghost_pad_new_from_template (padname, pad, pad_tmpl); |
| gst_object_unref (pad_tmpl); |
| g_free (padname); |
| |
| /* store ref to the ghostpad so we can remove it */ |
| g_object_set_data (G_OBJECT (pad), "uridecodebin.ghostpad", newpad); |
| |
| /* add event probe to monitor tags */ |
| stream = g_slice_alloc0 (sizeof (GstURIDecodeBinStream)); |
| stream->probe_id = |
| gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM, |
| decoded_pad_event_probe, decoder, NULL); |
| GST_URI_DECODE_BIN_LOCK (decoder); |
| g_hash_table_insert (decoder->streams, pad, stream); |
| GST_URI_DECODE_BIN_UNLOCK (decoder); |
| |
| gst_pad_set_active (newpad, TRUE); |
| gst_pad_sticky_events_foreach (pad, copy_sticky_events, newpad); |
| gst_element_add_pad (GST_ELEMENT_CAST (decoder), newpad); |
| } |
| |
| static GstPadProbeReturn |
| source_pad_event_probe (GstPad * pad, GstPadProbeInfo * info, |
| gpointer user_data) |
| { |
| GstEvent *event = GST_PAD_PROBE_INFO_EVENT (info); |
| GstURIDecodeBin *decoder = user_data; |
| |
| GST_LOG_OBJECT (pad, "%s, decoder %p", GST_EVENT_TYPE_NAME (event), decoder); |
| |
| if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) { |
| GST_DEBUG_OBJECT (pad, "we received EOS"); |
| |
| g_signal_emit (decoder, |
| gst_uri_decode_bin_signals[SIGNAL_DRAINED], 0, NULL); |
| } |
| /* never drop events */ |
| return GST_PAD_PROBE_OK; |
| } |
| |
| /* called when we found a raw pad on the source element. We need to set up a |
| * padprobe to detect EOS before exposing the pad. */ |
| static void |
| expose_decoded_pad (GstElement * element, GstPad * pad, |
| GstURIDecodeBin * decoder) |
| { |
| gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM, |
| source_pad_event_probe, decoder, NULL); |
| |
| new_decoded_pad_added_cb (element, pad, decoder); |
| } |
| |
| static void |
| pad_removed_cb (GstElement * element, GstPad * pad, GstURIDecodeBin * decoder) |
| { |
| GstPad *ghost; |
| |
| GST_DEBUG_OBJECT (element, "pad removed name: <%s:%s>", |
| GST_DEBUG_PAD_NAME (pad)); |
| |
| /* we only care about srcpads */ |
| if (!GST_PAD_IS_SRC (pad)) |
| return; |
| |
| if (!(ghost = g_object_get_data (G_OBJECT (pad), "uridecodebin.ghostpad"))) |
| goto no_ghost; |
| |
| /* unghost the pad */ |
| gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (ghost), NULL); |
| |
| /* deactivate and remove */ |
| gst_pad_set_active (pad, FALSE); |
| gst_element_remove_pad (GST_ELEMENT_CAST (decoder), ghost); |
| |
| return; |
| |
| /* ERRORS */ |
| no_ghost: |
| { |
| GST_WARNING_OBJECT (element, "no ghost pad found"); |
| return; |
| } |
| } |
| |
| /* helper function to lookup stuff in lists */ |
| static gboolean |
| array_has_value (const gchar * values[], const gchar * value) |
| { |
| gint i; |
| |
| for (i = 0; values[i]; i++) { |
| if (g_str_has_prefix (value, values[i])) |
| return TRUE; |
| } |
| return FALSE; |
| } |
| |
| static gboolean |
| array_has_uri_value (const gchar * values[], const gchar * value) |
| { |
| gint i; |
| |
| for (i = 0; values[i]; i++) { |
| if (!g_ascii_strncasecmp (value, values[i], strlen (values[i]))) |
| return TRUE; |
| } |
| return FALSE; |
| } |
| |
| /* list of URIs that we consider to be streams and that need buffering. |
| * We have no mechanism yet to figure this out with a query. */ |
| static const gchar *stream_uris[] = { "http://", "https://", "mms://", |
| "mmsh://", "mmsu://", "mmst://", "fd://", "myth://", "ssh://", |
| "ftp://", "sftp://", |
| NULL |
| }; |
| |
| /* list of URIs that need a queue because they are pretty bursty */ |
| static const gchar *queue_uris[] = { "cdda://", NULL }; |
| |
| /* blacklisted URIs, we know they will always fail. */ |
| static const gchar *blacklisted_uris[] = { NULL }; |
| |
| /* media types that use adaptive streaming */ |
| static const gchar *adaptive_media[] = { |
| "application/x-hls", "application/vnd.ms-sstr+xml", |
| "application/dash+xml", NULL |
| }; |
| |
| #define IS_STREAM_URI(uri) (array_has_uri_value (stream_uris, uri)) |
| #define IS_QUEUE_URI(uri) (array_has_uri_value (queue_uris, uri)) |
| #define IS_BLACKLISTED_URI(uri) (array_has_uri_value (blacklisted_uris, uri)) |
| #define IS_ADAPTIVE_MEDIA(media) (array_has_value (adaptive_media, media)) |
| |
| /* |
| * Generate and configure a source element. |
| */ |
| static GstElement * |
| gen_source_element (GstURIDecodeBin * decoder) |
| { |
| GObjectClass *source_class; |
| GstElement *source; |
| GParamSpec *pspec; |
| GstQuery *query; |
| GstSchedulingFlags flags; |
| GError *err = NULL; |
| |
| if (!decoder->uri) |
| goto no_uri; |
| |
| GST_LOG_OBJECT (decoder, "finding source for %s", decoder->uri); |
| |
| if (!gst_uri_is_valid (decoder->uri)) |
| goto invalid_uri; |
| |
| if (IS_BLACKLISTED_URI (decoder->uri)) |
| goto uri_blacklisted; |
| |
| source = |
| gst_element_make_from_uri (GST_URI_SRC, decoder->uri, "source", &err); |
| if (!source) |
| goto no_source; |
| |
| GST_LOG_OBJECT (decoder, "found source type %s", G_OBJECT_TYPE_NAME (source)); |
| |
| query = gst_query_new_scheduling (); |
| if (gst_element_query (source, query)) { |
| gst_query_parse_scheduling (query, &flags, NULL, NULL, NULL); |
| decoder->is_stream = flags & GST_SCHEDULING_FLAG_BANDWIDTH_LIMITED; |
| } else |
| decoder->is_stream = IS_STREAM_URI (decoder->uri); |
| gst_query_unref (query); |
| |
| GST_LOG_OBJECT (decoder, "source is stream: %d", decoder->is_stream); |
| |
| decoder->need_queue = IS_QUEUE_URI (decoder->uri); |
| GST_LOG_OBJECT (decoder, "source needs queue: %d", decoder->need_queue); |
| |
| source_class = G_OBJECT_GET_CLASS (source); |
| |
| pspec = g_object_class_find_property (source_class, "connection-speed"); |
| if (pspec != NULL) { |
| guint64 speed = decoder->connection_speed / 1000; |
| gboolean wrong_type = FALSE; |
| |
| if (G_PARAM_SPEC_TYPE (pspec) == G_TYPE_PARAM_UINT) { |
| GParamSpecUInt *pspecuint = G_PARAM_SPEC_UINT (pspec); |
| |
| speed = CLAMP (speed, pspecuint->minimum, pspecuint->maximum); |
| } else if (G_PARAM_SPEC_TYPE (pspec) == G_TYPE_PARAM_INT) { |
| GParamSpecInt *pspecint = G_PARAM_SPEC_INT (pspec); |
| |
| speed = CLAMP (speed, pspecint->minimum, pspecint->maximum); |
| } else if (G_PARAM_SPEC_TYPE (pspec) == G_TYPE_PARAM_UINT64) { |
| GParamSpecUInt64 *pspecuint = G_PARAM_SPEC_UINT64 (pspec); |
| |
| speed = CLAMP (speed, pspecuint->minimum, pspecuint->maximum); |
| } else if (G_PARAM_SPEC_TYPE (pspec) == G_TYPE_PARAM_INT64) { |
| GParamSpecInt64 *pspecint = G_PARAM_SPEC_INT64 (pspec); |
| |
| speed = CLAMP (speed, pspecint->minimum, pspecint->maximum); |
| } else { |
| GST_WARNING_OBJECT (decoder, |
| "The connection speed property %" G_GUINT64_FORMAT |
| " of type %s is not usefull not setting it", speed, |
| g_type_name (G_PARAM_SPEC_TYPE (pspec))); |
| wrong_type = TRUE; |
| } |
| |
| if (!wrong_type) { |
| g_object_set (source, "connection-speed", speed, NULL); |
| |
| GST_DEBUG_OBJECT (decoder, |
| "setting connection-speed=%" G_GUINT64_FORMAT " to source element", |
| speed); |
| } |
| } |
| |
| pspec = g_object_class_find_property (source_class, "subtitle-encoding"); |
| if (pspec != NULL && G_PARAM_SPEC_VALUE_TYPE (pspec) == G_TYPE_STRING) { |
| GST_DEBUG_OBJECT (decoder, |
| "setting subtitle-encoding=%s to source element", decoder->encoding); |
| g_object_set (source, "subtitle-encoding", decoder->encoding, NULL); |
| } |
| return source; |
| |
| /* ERRORS */ |
| no_uri: |
| { |
| GST_ELEMENT_ERROR (decoder, RESOURCE, NOT_FOUND, |
| (_("No URI specified to play from.")), (NULL)); |
| return NULL; |
| } |
| invalid_uri: |
| { |
| GST_ELEMENT_ERROR (decoder, RESOURCE, NOT_FOUND, |
| (_("Invalid URI \"%s\"."), decoder->uri), (NULL)); |
| g_clear_error (&err); |
| return NULL; |
| } |
| uri_blacklisted: |
| { |
| GST_ELEMENT_ERROR (decoder, RESOURCE, FAILED, |
| (_("This stream type cannot be played yet.")), (NULL)); |
| return NULL; |
| } |
| no_source: |
| { |
| /* whoops, could not create the source element, dig a little deeper to |
| * figure out what might be wrong. */ |
| if (err != NULL && err->code == GST_URI_ERROR_UNSUPPORTED_PROTOCOL) { |
| gchar *prot; |
| |
| prot = gst_uri_get_protocol (decoder->uri); |
| if (prot == NULL) |
| goto invalid_uri; |
| |
| gst_element_post_message (GST_ELEMENT_CAST (decoder), |
| gst_missing_uri_source_message_new (GST_ELEMENT (decoder), prot)); |
| |
| GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN, |
| (_("No URI handler implemented for \"%s\"."), prot), (NULL)); |
| |
| g_free (prot); |
| } else { |
| GST_ELEMENT_ERROR (decoder, RESOURCE, NOT_FOUND, |
| ("%s", (err) ? err->message : "URI was not accepted by any element"), |
| ("No element accepted URI '%s'", decoder->uri)); |
| } |
| |
| g_clear_error (&err); |
| return NULL; |
| } |
| } |
| |
| /** |
| * has_all_raw_caps: |
| * @pad: a #GstPad |
| * @all_raw: pointer to hold the result |
| * |
| * check if the caps of the pad are all raw. The caps are all raw if |
| * all of its structures contain audio/x-raw or video/x-raw. |
| * |
| * Returns: %FALSE @pad has no caps. Else TRUE and @all_raw set t the result. |
| */ |
| static gboolean |
| has_all_raw_caps (GstPad * pad, GstCaps * rawcaps, gboolean * all_raw) |
| { |
| GstCaps *caps, *intersection; |
| gint capssize; |
| gboolean res = FALSE; |
| |
| caps = gst_pad_query_caps (pad, NULL); |
| if (caps == NULL) |
| return FALSE; |
| |
| GST_DEBUG_OBJECT (pad, "have caps %" GST_PTR_FORMAT, caps); |
| |
| capssize = gst_caps_get_size (caps); |
| /* no caps, skip and move to the next pad */ |
| if (capssize == 0 || gst_caps_is_empty (caps) || gst_caps_is_any (caps)) |
| goto done; |
| |
| intersection = gst_caps_intersect (caps, rawcaps); |
| *all_raw = !gst_caps_is_empty (intersection) |
| && (gst_caps_get_size (intersection) == capssize); |
| gst_caps_unref (intersection); |
| |
| res = TRUE; |
| |
| done: |
| gst_caps_unref (caps); |
| return res; |
| } |
| |
| static void |
| post_missing_plugin_error (GstElement * dec, const gchar * element_name) |
| { |
| GstMessage *msg; |
| |
| msg = gst_missing_element_message_new (dec, element_name); |
| gst_element_post_message (dec, msg); |
| |
| GST_ELEMENT_ERROR (dec, CORE, MISSING_PLUGIN, |
| (_("Missing element '%s' - check your GStreamer installation."), |
| element_name), (NULL)); |
| do_async_done (GST_URI_DECODE_BIN (dec)); |
| } |
| |
| /** |
| * analyse_source: |
| * @decoder: a #GstURIDecodeBin |
| * @is_raw: are all pads raw data |
| * @have_out: does the source have output |
| * @is_dynamic: is this a dynamic source |
| * @use_queue: put a queue before raw output pads |
| * |
| * Check the source of @decoder and collect information about it. |
| * |
| * @is_raw will be set to TRUE if the source only produces raw pads. When this |
| * function returns, all of the raw pad of the source will be added |
| * to @decoder. |
| * |
| * @have_out: will be set to TRUE if the source has output pads. |
| * |
| * @is_dynamic: TRUE if the element will create (more) pads dynamically later |
| * on. |
| * |
| * Returns: FALSE if a fatal error occured while scanning. |
| */ |
| static gboolean |
| analyse_source (GstURIDecodeBin * decoder, gboolean * is_raw, |
| gboolean * have_out, gboolean * is_dynamic, gboolean use_queue) |
| { |
| GstIterator *pads_iter; |
| gboolean done = FALSE; |
| gboolean res = TRUE; |
| GstCaps *rawcaps; |
| GstPad *pad; |
| GValue item = { 0, }; |
| |
| *have_out = FALSE; |
| *is_raw = FALSE; |
| *is_dynamic = FALSE; |
| |
| g_object_get (decoder, "caps", &rawcaps, NULL); |
| if (!rawcaps) |
| rawcaps = DEFAULT_CAPS; |
| |
| pads_iter = gst_element_iterate_src_pads (decoder->source); |
| while (!done) { |
| switch (gst_iterator_next (pads_iter, &item)) { |
| case GST_ITERATOR_ERROR: |
| res = FALSE; |
| /* FALLTROUGH */ |
| case GST_ITERATOR_DONE: |
| done = TRUE; |
| break; |
| case GST_ITERATOR_RESYNC: |
| /* reset results and resync */ |
| *have_out = FALSE; |
| *is_raw = FALSE; |
| *is_dynamic = FALSE; |
| gst_iterator_resync (pads_iter); |
| break; |
| case GST_ITERATOR_OK: |
| pad = g_value_dup_object (&item); |
| /* we now officially have an ouput pad */ |
| *have_out = TRUE; |
| |
| /* if FALSE, this pad has no caps and we continue with the next pad. */ |
| if (!has_all_raw_caps (pad, rawcaps, is_raw)) { |
| gst_object_unref (pad); |
| g_value_reset (&item); |
| break; |
| } |
| |
| /* caps on source pad are all raw, we can add the pad */ |
| if (*is_raw) { |
| GstElement *outelem; |
| |
| if (use_queue) { |
| GstPad *sinkpad; |
| |
| /* insert a queue element right before the raw pad */ |
| outelem = gst_element_factory_make ("queue2", NULL); |
| if (!outelem) |
| goto no_queue2; |
| |
| gst_bin_add (GST_BIN_CAST (decoder), outelem); |
| |
| sinkpad = gst_element_get_static_pad (outelem, "sink"); |
| gst_pad_link (pad, sinkpad); |
| gst_object_unref (sinkpad); |
| |
| /* save queue pointer so we can remove it later */ |
| decoder->queue = outelem; |
| |
| /* get the new raw srcpad */ |
| gst_object_unref (pad); |
| pad = gst_element_get_static_pad (outelem, "src"); |
| } else { |
| outelem = decoder->source; |
| } |
| expose_decoded_pad (outelem, pad, decoder); |
| } |
| gst_object_unref (pad); |
| g_value_reset (&item); |
| break; |
| } |
| } |
| g_value_unset (&item); |
| gst_iterator_free (pads_iter); |
| gst_caps_unref (rawcaps); |
| |
| if (!*have_out) { |
| GstElementClass *elemclass; |
| GList *walk; |
| |
| /* element has no output pads, check for padtemplates that list SOMETIMES |
| * pads. */ |
| elemclass = GST_ELEMENT_GET_CLASS (decoder->source); |
| |
| walk = gst_element_class_get_pad_template_list (elemclass); |
| while (walk != NULL) { |
| GstPadTemplate *templ; |
| |
| templ = (GstPadTemplate *) walk->data; |
| if (GST_PAD_TEMPLATE_DIRECTION (templ) == GST_PAD_SRC) { |
| if (GST_PAD_TEMPLATE_PRESENCE (templ) == GST_PAD_SOMETIMES) |
| *is_dynamic = TRUE; |
| break; |
| } |
| walk = g_list_next (walk); |
| } |
| } |
| |
| return res; |
| no_queue2: |
| { |
| post_missing_plugin_error (GST_ELEMENT_CAST (decoder), "queue2"); |
| |
| gst_object_unref (pad); |
| g_value_unset (&item); |
| gst_iterator_free (pads_iter); |
| gst_caps_unref (rawcaps); |
| |
| return FALSE; |
| } |
| } |
| |
| /* Remove all decodebin from ourself |
| * If force is FALSE, then the decodebin instances will be stored in |
| * pending_decodebins for re-use later on. |
| * If force is TRUE, then all decodebin instances will be unreferenced |
| * and cleared, including the pending ones. */ |
| static void |
| remove_decoders (GstURIDecodeBin * bin, gboolean force) |
| { |
| GSList *walk; |
| |
| for (walk = bin->decodebins; walk; walk = g_slist_next (walk)) { |
| GstElement *decoder = GST_ELEMENT_CAST (walk->data); |
| |
| GST_DEBUG_OBJECT (bin, "removing old decoder element"); |
| |
| /* Even if we reuse this decodebin, the previous topology will |
| * be irrelevant */ |
| g_object_set_data (G_OBJECT (decoder), "uridecodebin-topology", NULL); |
| |
| if (force) { |
| gst_element_set_state (decoder, GST_STATE_NULL); |
| gst_bin_remove (GST_BIN_CAST (bin), decoder); |
| } else { |
| GstCaps *caps; |
| |
| gst_element_set_state (decoder, GST_STATE_READY); |
| /* add it to our list of pending decodebins */ |
| g_object_ref (decoder); |
| gst_bin_remove (GST_BIN_CAST (bin), decoder); |
| /* restore some properties we might have changed */ |
| g_object_set (decoder, "sink-caps", NULL, NULL); |
| caps = DEFAULT_CAPS; |
| g_object_set (decoder, "caps", caps, NULL); |
| gst_caps_unref (caps); |
| /* make it freshly floating again */ |
| g_object_force_floating (G_OBJECT (decoder)); |
| |
| bin->pending_decodebins = |
| g_slist_prepend (bin->pending_decodebins, decoder); |
| } |
| } |
| g_slist_free (bin->decodebins); |
| bin->decodebins = NULL; |
| if (force) { |
| GSList *tmp; |
| |
| for (tmp = bin->pending_decodebins; tmp; tmp = tmp->next) { |
| gst_element_set_state ((GstElement *) tmp->data, GST_STATE_NULL); |
| gst_object_unref ((GstElement *) tmp->data); |
| } |
| g_slist_free (bin->pending_decodebins); |
| bin->pending_decodebins = NULL; |
| |
| } |
| } |
| |
| static void |
| proxy_unknown_type_signal (GstElement * decodebin, GstPad * pad, GstCaps * caps, |
| GstURIDecodeBin * dec) |
| { |
| GST_DEBUG_OBJECT (dec, "unknown-type signaled"); |
| |
| g_signal_emit (dec, |
| gst_uri_decode_bin_signals[SIGNAL_UNKNOWN_TYPE], 0, pad, caps); |
| } |
| |
| static gboolean |
| proxy_autoplug_continue_signal (GstElement * decodebin, GstPad * pad, |
| GstCaps * caps, GstURIDecodeBin * dec) |
| { |
| gboolean result; |
| |
| g_signal_emit (dec, |
| gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_CONTINUE], 0, pad, caps, |
| &result); |
| |
| GST_DEBUG_OBJECT (dec, "autoplug-continue returned %d", result); |
| |
| return result; |
| } |
| |
| static GValueArray * |
| proxy_autoplug_factories_signal (GstElement * decodebin, GstPad * pad, |
| GstCaps * caps, GstURIDecodeBin * dec) |
| { |
| GValueArray *result; |
| |
| g_signal_emit (dec, |
| gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_FACTORIES], 0, pad, caps, |
| &result); |
| |
| GST_DEBUG_OBJECT (dec, "autoplug-factories returned %p", result); |
| |
| return result; |
| } |
| |
| static GValueArray * |
| proxy_autoplug_sort_signal (GstElement * decodebin, GstPad * pad, |
| GstCaps * caps, GValueArray * factories, GstURIDecodeBin * dec) |
| { |
| GValueArray *result; |
| |
| g_signal_emit (dec, |
| gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_SORT], 0, pad, caps, |
| factories, &result); |
| |
| GST_DEBUG_OBJECT (dec, "autoplug-sort returned %p", result); |
| |
| return result; |
| } |
| |
| static GstAutoplugSelectResult |
| proxy_autoplug_select_signal (GstElement * decodebin, GstPad * pad, |
| GstCaps * caps, GstElementFactory * factory, GstURIDecodeBin * dec) |
| { |
| GstAutoplugSelectResult result; |
| |
| g_signal_emit (dec, |
| gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_SELECT], 0, pad, caps, factory, |
| &result); |
| |
| GST_DEBUG_OBJECT (dec, "autoplug-select returned %d", result); |
| |
| return result; |
| } |
| |
| static gboolean |
| proxy_autoplug_query_signal (GstElement * decodebin, GstPad * pad, |
| GstElement * element, GstQuery * query, GstURIDecodeBin * dec) |
| { |
| gboolean ret = FALSE; |
| |
| g_signal_emit (dec, |
| gst_uri_decode_bin_signals[SIGNAL_AUTOPLUG_QUERY], 0, pad, element, query, |
| &ret); |
| |
| GST_DEBUG_OBJECT (dec, "autoplug-query returned %d", ret); |
| |
| return ret; |
| } |
| |
| static void |
| proxy_drained_signal (GstElement * decodebin, GstURIDecodeBin * dec) |
| { |
| GST_DEBUG_OBJECT (dec, "drained signaled"); |
| |
| g_signal_emit (dec, gst_uri_decode_bin_signals[SIGNAL_DRAINED], 0, NULL); |
| } |
| |
| /* make a decodebin and connect to all the signals */ |
| static GstElement * |
| make_decoder (GstURIDecodeBin * decoder) |
| { |
| GstElement *decodebin; |
| |
| /* re-use pending decodebin */ |
| if (decoder->pending_decodebins) { |
| GSList *first = decoder->pending_decodebins; |
| GST_LOG_OBJECT (decoder, "re-using pending decodebin"); |
| decodebin = (GstElement *) first->data; |
| decoder->pending_decodebins = |
| g_slist_delete_link (decoder->pending_decodebins, first); |
| } else { |
| GST_LOG_OBJECT (decoder, "making new decodebin"); |
| |
| /* now create the decoder element */ |
| decodebin = gst_element_factory_make ("decodebin", NULL); |
| |
| if (!decodebin) |
| goto no_decodebin; |
| |
| /* sanity check */ |
| if (decodebin->numsinkpads == 0) |
| goto no_typefind; |
| |
| /* connect signals to proxy */ |
| g_signal_connect (decodebin, "unknown-type", |
| G_CALLBACK (proxy_unknown_type_signal), decoder); |
| g_signal_connect (decodebin, "autoplug-continue", |
| G_CALLBACK (proxy_autoplug_continue_signal), decoder); |
| g_signal_connect (decodebin, "autoplug-factories", |
| G_CALLBACK (proxy_autoplug_factories_signal), decoder); |
| g_signal_connect (decodebin, "autoplug-sort", |
| G_CALLBACK (proxy_autoplug_sort_signal), decoder); |
| g_signal_connect (decodebin, "autoplug-select", |
| G_CALLBACK (proxy_autoplug_select_signal), decoder); |
| g_signal_connect (decodebin, "autoplug-query", |
| G_CALLBACK (proxy_autoplug_query_signal), decoder); |
| g_signal_connect (decodebin, "drained", |
| G_CALLBACK (proxy_drained_signal), decoder); |
| |
| /* set up callbacks to create the links between decoded data |
| * and video/audio/subtitle rendering/output. */ |
| g_signal_connect (decodebin, |
| "pad-added", G_CALLBACK (new_decoded_pad_added_cb), decoder); |
| g_signal_connect (decodebin, |
| "pad-removed", G_CALLBACK (pad_removed_cb), decoder); |
| g_signal_connect (decodebin, "no-more-pads", |
| G_CALLBACK (no_more_pads), decoder); |
| g_signal_connect (decodebin, |
| "unknown-type", G_CALLBACK (unknown_type_cb), decoder); |
| } |
| |
| /* configure caps if we have any */ |
| if (decoder->caps) |
| g_object_set (decodebin, "caps", decoder->caps, NULL); |
| |
| /* Propagate expose-all-streams and connection-speed properties */ |
| g_object_set (decodebin, "expose-all-streams", decoder->expose_allstreams, |
| "connection-speed", decoder->connection_speed / 1000, NULL); |
| |
| if (!decoder->is_stream || decoder->is_adaptive) { |
| /* propagate the use-buffering property but only when we are not already |
| * doing stream buffering with queue2. FIXME, we might want to do stream |
| * buffering with the multiqueue buffering instead of queue2. */ |
| g_object_set (decodebin, "use-buffering", decoder->use_buffering |
| || decoder->is_adaptive, NULL); |
| |
| if (decoder->use_buffering || decoder->is_adaptive) { |
| guint max_bytes; |
| guint64 max_time; |
| |
| /* configure sizes when buffering */ |
| if ((max_bytes = decoder->buffer_size) == -1) |
| max_bytes = 2 * 1024 * 1024; |
| if ((max_time = decoder->buffer_duration) == -1) |
| max_time = 5 * GST_SECOND; |
| |
| g_object_set (decodebin, "max-size-bytes", max_bytes, "max-size-buffers", |
| (guint) 0, "max-size-time", max_time, NULL); |
| } |
| } |
| |
| g_object_set_data (G_OBJECT (decodebin), "pending", GINT_TO_POINTER (1)); |
| g_object_set (decodebin, "subtitle-encoding", decoder->encoding, NULL); |
| decoder->pending++; |
| GST_LOG_OBJECT (decoder, "have %d pending dynamic objects", decoder->pending); |
| |
| gst_bin_add (GST_BIN_CAST (decoder), decodebin); |
| |
| decoder->decodebins = g_slist_prepend (decoder->decodebins, decodebin); |
| |
| return decodebin; |
| |
| /* ERRORS */ |
| no_decodebin: |
| { |
| post_missing_plugin_error (GST_ELEMENT_CAST (decoder), "decodebin"); |
| GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN, (NULL), |
| ("No decodebin element, check your installation")); |
| do_async_done (decoder); |
| return NULL; |
| } |
| no_typefind: |
| { |
| gst_object_unref (decodebin); |
| GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN, (NULL), |
| ("No typefind element, decodebin is unusable, check your installation")); |
| do_async_done (decoder); |
| return NULL; |
| } |
| } |
| |
| /* signaled when we have a stream and we need to configure the download |
| * buffering or regular buffering */ |
| static void |
| type_found (GstElement * typefind, guint probability, |
| GstCaps * caps, GstURIDecodeBin * decoder) |
| { |
| GstElement *src_elem, *dec_elem, *queue = NULL; |
| GstStructure *s; |
| const gchar *media_type, *elem_name; |
| gboolean do_download = FALSE; |
| |
| GST_DEBUG_OBJECT (decoder, "typefind found caps %" GST_PTR_FORMAT, caps); |
| |
| s = gst_caps_get_structure (caps, 0); |
| media_type = gst_structure_get_name (s); |
| |
| decoder->is_adaptive = IS_ADAPTIVE_MEDIA (media_type); |
| |
| /* only enable download buffering if the upstream duration is known */ |
| if (decoder->download) { |
| gint64 dur; |
| |
| do_download = (gst_element_query_duration (typefind, GST_FORMAT_BYTES, &dur) |
| && dur != -1); |
| } |
| |
| dec_elem = make_decoder (decoder); |
| if (!dec_elem) |
| goto no_decodebin; |
| |
| if (decoder->is_adaptive) { |
| src_elem = typefind; |
| } else { |
| if (do_download) { |
| elem_name = "downloadbuffer"; |
| } else { |
| elem_name = "queue2"; |
| } |
| queue = gst_element_factory_make (elem_name, NULL); |
| if (!queue) |
| goto no_buffer_element; |
| |
| decoder->queue = queue; |
| |
| GST_DEBUG_OBJECT (decoder, "check media-type %s, %d", media_type, |
| do_download); |
| |
| if (do_download) { |
| gchar *temp_template, *filename; |
| const gchar *tmp_dir, *prgname; |
| |
| tmp_dir = g_get_user_cache_dir (); |
| prgname = g_get_prgname (); |
| if (prgname == NULL) |
| prgname = "GStreamer"; |
| |
| filename = g_strdup_printf ("%s-XXXXXX", prgname); |
| |
| /* build our filename */ |
| temp_template = g_build_filename (tmp_dir, filename, NULL); |
| |
| GST_DEBUG_OBJECT (decoder, "enable download buffering in %s (%s, %s, %s)", |
| temp_template, tmp_dir, prgname, filename); |
| |
| /* configure progressive download for selected media types */ |
| g_object_set (queue, "temp-template", temp_template, NULL); |
| |
| g_free (filename); |
| g_free (temp_template); |
| } else { |
| g_object_set (queue, "use-buffering", TRUE, NULL); |
| g_object_set (queue, "ring-buffer-max-size", |
| decoder->ring_buffer_max_size, NULL); |
| /* Disable max-size-buffers */ |
| g_object_set (queue, "max-size-buffers", 0, NULL); |
| } |
| |
| /* If buffer size or duration are set, set them on the element */ |
| if (decoder->buffer_size != -1) |
| g_object_set (queue, "max-size-bytes", decoder->buffer_size, NULL); |
| if (decoder->buffer_duration != -1) |
| g_object_set (queue, "max-size-time", decoder->buffer_duration, NULL); |
| |
| gst_bin_add (GST_BIN_CAST (decoder), queue); |
| |
| if (!gst_element_link_pads (typefind, "src", queue, "sink")) |
| goto could_not_link; |
| src_elem = queue; |
| } |
| |
| /* to force caps on the decodebin element and avoid reparsing stuff by |
| * typefind. It also avoids a deadlock in the way typefind activates pads in |
| * the state change */ |
| g_object_set (dec_elem, "sink-caps", caps, NULL); |
| |
| if (!gst_element_link_pads (src_elem, "src", dec_elem, "sink")) |
| goto could_not_link; |
| |
| /* PLAYING in one go might fail (see bug #632782) */ |
| gst_element_set_state (dec_elem, GST_STATE_PAUSED); |
| gst_element_sync_state_with_parent (dec_elem); |
| if (queue) |
| gst_element_sync_state_with_parent (queue); |
| |
| return; |
| |
| /* ERRORS */ |
| no_decodebin: |
| { |
| /* error was posted */ |
| return; |
| } |
| could_not_link: |
| { |
| GST_ELEMENT_ERROR (decoder, CORE, NEGOTIATION, |
| (NULL), ("Can't link typefind to decodebin element")); |
| do_async_done (decoder); |
| return; |
| } |
| no_buffer_element: |
| { |
| post_missing_plugin_error (GST_ELEMENT_CAST (decoder), elem_name); |
| return; |
| } |
| } |
| |
| /* setup a streaming source. This will first plug a typefind element to the |
| * source. After we find the type, we decide to plug a queue2 and continue to |
| * plug a decodebin starting from the found caps */ |
| static gboolean |
| setup_streaming (GstURIDecodeBin * decoder) |
| { |
| GstElement *typefind; |
| |
| /* now create the decoder element */ |
| typefind = gst_element_factory_make ("typefind", NULL); |
| if (!typefind) |
| goto no_typefind; |
| |
| gst_bin_add (GST_BIN_CAST (decoder), typefind); |
| |
| if (!gst_element_link_pads (decoder->source, NULL, typefind, "sink")) |
| goto could_not_link; |
| |
| decoder->typefind = typefind; |
| |
| /* connect a signal to find out when the typefind element found |
| * a type */ |
| decoder->have_type_id = |
| g_signal_connect (decoder->typefind, "have-type", |
| G_CALLBACK (type_found), decoder); |
| |
| return TRUE; |
| |
| /* ERRORS */ |
| no_typefind: |
| { |
| post_missing_plugin_error (GST_ELEMENT_CAST (decoder), "typefind"); |
| GST_ELEMENT_ERROR (decoder, CORE, MISSING_PLUGIN, (NULL), |
| ("No typefind element, check your installation")); |
| do_async_done (decoder); |
| return FALSE; |
| } |
| could_not_link: |
| { |
| GST_ELEMENT_ERROR (decoder, CORE, NEGOTIATION, |
| (NULL), ("Can't link source to typefind element")); |
| gst_bin_remove (GST_BIN_CAST (decoder), typefind); |
| do_async_done (decoder); |
| return FALSE; |
| } |
| } |
| |
| static void |
| free_stream (gpointer value) |
| { |
| g_slice_free (GstURIDecodeBinStream, value); |
| } |
| |
| /* remove source and all related elements */ |
| static void |
| remove_source (GstURIDecodeBin * bin) |
| { |
| GstElement *source = bin->source; |
| |
| if (source) { |
| GST_DEBUG_OBJECT (bin, "removing old src element"); |
| gst_element_set_state (source, GST_STATE_NULL); |
| |
| if (bin->src_np_sig_id) { |
| g_signal_handler_disconnect (source, bin->src_np_sig_id); |
| bin->src_np_sig_id = 0; |
| } |
| if (bin->src_nmp_sig_id) { |
| g_signal_handler_disconnect (source, bin->src_nmp_sig_id); |
| bin->src_nmp_sig_id = 0; |
| } |
| gst_bin_remove (GST_BIN_CAST (bin), source); |
| bin->source = NULL; |
| } |
| if (bin->queue) { |
| GST_DEBUG_OBJECT (bin, "removing old queue element"); |
| gst_element_set_state (bin->queue, GST_STATE_NULL); |
| gst_bin_remove (GST_BIN_CAST (bin), bin->queue); |
| bin->queue = NULL; |
| } |
| if (bin->typefind) { |
| GST_DEBUG_OBJECT (bin, "removing old typefind element"); |
| gst_element_set_state (bin->typefind, GST_STATE_NULL); |
| gst_bin_remove (GST_BIN_CAST (bin), bin->typefind); |
| bin->typefind = NULL; |
| } |
| if (bin->streams) { |
| g_hash_table_destroy (bin->streams); |
| bin->streams = NULL; |
| } |
| } |
| |
| /* is called when a dynamic source element created a new pad. */ |
| static void |
| source_new_pad (GstElement * element, GstPad * pad, GstURIDecodeBin * bin) |
| { |
| GstElement *decoder; |
| gboolean is_raw; |
| GstCaps *rawcaps; |
| |
| GST_URI_DECODE_BIN_LOCK (bin); |
| GST_DEBUG_OBJECT (bin, "Found new pad %s.%s in source element %s", |
| GST_DEBUG_PAD_NAME (pad), GST_ELEMENT_NAME (element)); |
| |
| g_object_get (bin, "caps", &rawcaps, NULL); |
| if (!rawcaps) |
| rawcaps = DEFAULT_CAPS; |
| |
| /* if this is a pad with all raw caps, we can expose it */ |
| if (has_all_raw_caps (pad, rawcaps, &is_raw) && is_raw) { |
| /* it's all raw, create output pads. */ |
| GST_URI_DECODE_BIN_UNLOCK (bin); |
| gst_caps_unref (rawcaps); |
| expose_decoded_pad (element, pad, bin); |
| return; |
| } |
| gst_caps_unref (rawcaps); |
| |
| /* not raw, create decoder */ |
| decoder = make_decoder (bin); |
| if (!decoder) |
| goto no_decodebin; |
| |
| /* and link to decoder */ |
| if (!gst_element_link_pads (bin->source, NULL, decoder, "sink")) |
| goto could_not_link; |
| |
| GST_DEBUG_OBJECT (bin, "linked decoder to new pad"); |
| |
| gst_element_sync_state_with_parent (decoder); |
| GST_URI_DECODE_BIN_UNLOCK (bin); |
| |
| return; |
| |
| /* ERRORS */ |
| no_decodebin: |
| { |
| /* error was posted */ |
| GST_URI_DECODE_BIN_UNLOCK (bin); |
| return; |
| } |
| could_not_link: |
| { |
| GST_ELEMENT_ERROR (bin, CORE, NEGOTIATION, |
| (NULL), ("Can't link source to decoder element")); |
| GST_URI_DECODE_BIN_UNLOCK (bin); |
| do_async_done (bin); |
| return; |
| } |
| } |
| |
| static gboolean |
| is_live_source (GstElement * source) |
| { |
| GObjectClass *source_class = NULL; |
| gboolean is_live = FALSE; |
| GParamSpec *pspec; |
| |
| source_class = G_OBJECT_GET_CLASS (source); |
| pspec = g_object_class_find_property (source_class, "is-live"); |
| if (!pspec || G_PARAM_SPEC_VALUE_TYPE (pspec) != G_TYPE_BOOLEAN) |
| return FALSE; |
| |
| g_object_get (G_OBJECT (source), "is-live", &is_live, NULL); |
| |
| return is_live; |
| } |
| |
| /* construct and run the source and decoder elements until we found |
| * all the streams or until a preroll queue has been filled. |
| */ |
| static gboolean |
| setup_source (GstURIDecodeBin * decoder) |
| { |
| gboolean is_raw, have_out, is_dynamic; |
| |
| GST_DEBUG_OBJECT (decoder, "setup source"); |
| |
| /* delete old src */ |
| remove_source (decoder); |
| |
| decoder->pending = 0; |
| |
| /* create and configure an element that can handle the uri */ |
| if (!(decoder->source = gen_source_element (decoder))) |
| goto no_source; |
| |
| /* state will be merged later - if file is not found, error will be |
| * handled by the application right after. */ |
| gst_bin_add (GST_BIN_CAST (decoder), decoder->source); |
| |
| /* notify of the new source used */ |
| g_object_notify (G_OBJECT (decoder), "source"); |
| |
| g_signal_emit (decoder, gst_uri_decode_bin_signals[SIGNAL_SOURCE_SETUP], |
| 0, decoder->source); |
| |
| if (is_live_source (decoder->source)) |
| decoder->is_stream = FALSE; |
| |
| /* remove the old decoders now, if any */ |
| remove_decoders (decoder, FALSE); |
| |
| /* stream admin setup */ |
| decoder->streams = g_hash_table_new_full (NULL, NULL, NULL, free_stream); |
| |
| /* see if the source element emits raw audio/video all by itself, |
| * if so, we can create streams for the pads and be done with it. |
| * Also check that is has source pads, if not, we assume it will |
| * do everything itself. */ |
| if (!analyse_source (decoder, &is_raw, &have_out, &is_dynamic, |
| decoder->need_queue)) |
| goto invalid_source; |
| |
| if (is_raw) { |
| GST_DEBUG_OBJECT (decoder, "Source provides all raw data"); |
| /* source provides raw data, we added the pads and we can now signal a |
| * no_more pads because we are done. */ |
| gst_element_no_more_pads (GST_ELEMENT_CAST (decoder)); |
| do_async_done (decoder); |
| return TRUE; |
| } |
| if (!have_out && !is_dynamic) { |
| GST_DEBUG_OBJECT (decoder, "Source has no output pads"); |
| /* create a stream to indicate that this uri is handled by a self |
| * contained element. We are now done. */ |
| add_element_stream (decoder->source, decoder); |
| return TRUE; |
| } |
| if (is_dynamic) { |
| GST_DEBUG_OBJECT (decoder, "Source has dynamic output pads"); |
| /* connect a handler for the new-pad signal */ |
| decoder->src_np_sig_id = |
| g_signal_connect (decoder->source, "pad-added", |
| G_CALLBACK (source_new_pad), decoder); |
| decoder->src_nmp_sig_id = |
| g_signal_connect (decoder->source, "no-more-pads", |
| G_CALLBACK (source_no_more_pads), decoder); |
| g_object_set_data (G_OBJECT (decoder->source), "pending", |
| GINT_TO_POINTER (1)); |
| decoder->pending++; |
| } else { |
| if (decoder->is_stream) { |
| GST_DEBUG_OBJECT (decoder, "Setting up streaming"); |
| /* do the stream things here */ |
| if (!setup_streaming (decoder)) |
| goto streaming_failed; |
| } else { |
| GstElement *dec_elem; |
| |
| /* no streaming source, we can link now */ |
| GST_DEBUG_OBJECT (decoder, "Plugging decodebin to source"); |
| |
| dec_elem = make_decoder (decoder); |
| if (!dec_elem) |
| goto no_decoder; |
| |
| if (!gst_element_link_pads (decoder->source, NULL, dec_elem, "sink")) |
| goto could_not_link; |
| } |
| } |
| return TRUE; |
| |
| /* ERRORS */ |
| no_source: |
| { |
| /* error message was already posted */ |
| return FALSE; |
| } |
| invalid_source: |
| { |
| GST_ELEMENT_ERROR (decoder, CORE, FAILED, |
| (_("Source element is invalid.")), (NULL)); |
| return FALSE; |
| } |
| no_decoder: |
| { |
| /* message was posted */ |
| return FALSE; |
| } |
| streaming_failed: |
| { |
| /* message was posted */ |
| return FALSE; |
| } |
| could_not_link: |
| { |
| GST_ELEMENT_ERROR (decoder, CORE, NEGOTIATION, |
| (NULL), ("Can't link source to decoder element")); |
| return FALSE; |
| } |
| } |
| |
| static void |
| value_list_append_structure_list (GValue * list_val, GstStructure ** first, |
| GList * structure_list) |
| { |
| GList *l; |
| |
| for (l = structure_list; l != NULL; l = l->next) { |
| GValue val = { 0, }; |
| |
| if (*first == NULL) |
| *first = gst_structure_copy ((GstStructure *) l->data); |
| |
| g_value_init (&val, GST_TYPE_STRUCTURE); |
| g_value_take_boxed (&val, gst_structure_copy ((GstStructure *) l->data)); |
| gst_value_list_append_value (list_val, &val); |
| g_value_unset (&val); |
| } |
| } |
| |
| /* if it's a redirect message with multiple redirect locations we might |
| * want to pick a different 'best' location depending on the required |
| * bitrates and the connection speed */ |
| static GstMessage * |
| handle_redirect_message (GstURIDecodeBin * dec, GstMessage * msg) |
| { |
| const GValue *locations_list, *location_val; |
| GstMessage *new_msg; |
| GstStructure *new_structure = NULL; |
| GList *l_good = NULL, *l_neutral = NULL, *l_bad = NULL; |
| GValue new_list = { 0, }; |
| guint size, i; |
| const GstStructure *structure; |
| |
| GST_DEBUG_OBJECT (dec, "redirect message: %" GST_PTR_FORMAT, msg); |
| GST_DEBUG_OBJECT (dec, "connection speed: %" G_GUINT64_FORMAT, |
| dec->connection_speed); |
| |
| structure = gst_message_get_structure (msg); |
| if (dec->connection_speed == 0 || structure == NULL) |
| return msg; |
| |
| locations_list = gst_structure_get_value (structure, "locations"); |
| if (locations_list == NULL) |
| return msg; |
| |
| size = gst_value_list_get_size (locations_list); |
| if (size < 2) |
| return msg; |
| |
| /* maintain existing order as much as possible, just sort references |
| * with too high a bitrate to the end (the assumption being that if |
| * bitrates are given they are given for all interesting streams and |
| * that the you-need-at-least-version-xyz redirect has the same bitrate |
| * as the lowest referenced redirect alternative) */ |
| for (i = 0; i < size; ++i) { |
| const GstStructure *s; |
| gint bitrate = 0; |
| |
| location_val = gst_value_list_get_value (locations_list, i); |
| s = (const GstStructure *) g_value_get_boxed (location_val); |
| if (!gst_structure_get_int (s, "minimum-bitrate", &bitrate) || bitrate <= 0) { |
| GST_DEBUG_OBJECT (dec, "no bitrate: %" GST_PTR_FORMAT, s); |
| l_neutral = g_list_append (l_neutral, (gpointer) s); |
| } else if (bitrate > dec->connection_speed) { |
| GST_DEBUG_OBJECT (dec, "bitrate too high: %" GST_PTR_FORMAT, s); |
| l_bad = g_list_append (l_bad, (gpointer) s); |
| } else if (bitrate <= dec->connection_speed) { |
| GST_DEBUG_OBJECT (dec, "bitrate OK: %" GST_PTR_FORMAT, s); |
| l_good = g_list_append (l_good, (gpointer) s); |
| } |
| } |
| |
| g_value_init (&new_list, GST_TYPE_LIST); |
| value_list_append_structure_list (&new_list, &new_structure, l_good); |
| value_list_append_structure_list (&new_list, &new_structure, l_neutral); |
| value_list_append_structure_list (&new_list, &new_structure, l_bad); |
| gst_structure_take_value (new_structure, "locations", &new_list); |
| |
| g_list_free (l_good); |
| g_list_free (l_neutral); |
| g_list_free (l_bad); |
| |
| new_msg = gst_message_new_element (msg->src, new_structure); |
| gst_message_unref (msg); |
| |
| GST_DEBUG_OBJECT (dec, "new redirect message: %" GST_PTR_FORMAT, new_msg); |
| return new_msg; |
| } |
| |
| static GstMessage * |
| make_topology_message (GstURIDecodeBin * dec) |
| { |
| GSList *tmp; |
| GstStructure *aggregated_topology = NULL; |
| GValue list = G_VALUE_INIT; |
| GstCaps *caps = NULL; |
| gchar *name, *proto; |
| |
| aggregated_topology = gst_structure_new_empty ("stream-topology"); |
| g_value_init (&list, GST_TYPE_LIST); |
| |
| for (tmp = dec->decodebins; tmp; tmp = tmp->next) { |
| GValue item = G_VALUE_INIT; |
| GstStructure *dec_topology = |
| g_object_get_data (G_OBJECT (tmp->data), "uridecodebin-topology"); |
| |
| g_value_init (&item, GST_TYPE_STRUCTURE); |
| gst_value_set_structure (&item, dec_topology); |
| gst_value_list_append_and_take_value (&list, &item); |
| } |
| |
| gst_structure_take_value (aggregated_topology, "next", &list); |
| |
| /* This is a bit wacky, but that's the best way I can find to express |
| * uridecodebin 'caps' as subsequently shown by gst-discoverer */ |
| proto = gst_uri_get_protocol (dec->uri); |
| name = g_strdup_printf ("application/%s", proto); |
| g_free (proto); |
| |
| caps = gst_caps_new_empty_simple (name); |
| g_free (name); |
| |
| gst_structure_set (aggregated_topology, "caps", GST_TYPE_CAPS, caps, NULL); |
| gst_caps_unref (caps); |
| |
| return gst_message_new_element (GST_OBJECT (dec), aggregated_topology); |
| } |
| |
| static void |
| check_topology (gpointer data, gpointer user_data) |
| { |
| gboolean *has_topo = user_data; |
| |
| if (g_object_get_data (data, "uridecodebin-topology") == NULL) |
| *has_topo = FALSE; |
| } |
| |
| static void |
| handle_message (GstBin * bin, GstMessage * msg) |
| { |
| GstURIDecodeBin *dec = GST_URI_DECODE_BIN (bin); |
| |
| switch (GST_MESSAGE_TYPE (msg)) { |
| case GST_MESSAGE_ELEMENT:{ |
| |
| if (gst_message_has_name (msg, "stream-topology")) { |
| GstElement *element = GST_ELEMENT (GST_MESSAGE_SRC (msg)); |
| gboolean has_all_topo = TRUE; |
| |
| if (dec->pending || (dec->decodebins && dec->decodebins->next != NULL)) { |
| const GstStructure *structure; |
| |
| /* If there is only one, just let it through, so this case is if |
| * there is more than one. |
| */ |
| |
| structure = gst_message_get_structure (msg); |
| |
| g_object_set_data_full (G_OBJECT (element), "uridecodebin-topology", |
| gst_structure_copy (structure), |
| (GDestroyNotify) gst_structure_free); |
| |
| gst_message_unref (msg); |
| msg = NULL; |
| |
| g_slist_foreach (dec->decodebins, check_topology, &has_all_topo); |
| if (has_all_topo) |
| msg = make_topology_message (dec); |
| } |
| } else if (gst_message_has_name (msg, "redirect")) { |
| /* sort redirect messages based on the connection speed. This simplifies |
| * the user of this element as it can in most cases just pick the first item |
| * of the sorted list as a good redirection candidate. It can of course |
| * choose something else from the list if it has a better way. */ |
| msg = handle_redirect_message (dec, msg); |
| } |
| break; |
| } |
| case GST_MESSAGE_ERROR:{ |
| GError *err = NULL; |
| |
| /* Filter out missing plugin error messages from the decodebins. Only if |
| * all decodebins exposed no streams we will report a missing plugin |
| * error from no_more_pads_full() |
| */ |
| gst_message_parse_error (msg, &err, NULL); |
| if (g_error_matches (err, GST_CORE_ERROR, GST_CORE_ERROR_MISSING_PLUGIN) |
| || g_error_matches (err, GST_STREAM_ERROR, |
| GST_STREAM_ERROR_CODEC_NOT_FOUND)) { |
| dec->missing_plugin_errors = |
| g_list_prepend (dec->missing_plugin_errors, gst_message_ref (msg)); |
| |
| no_more_pads_full (GST_ELEMENT (GST_MESSAGE_SRC (msg)), FALSE, |
| GST_URI_DECODE_BIN (bin)); |
| gst_message_unref (msg); |
| msg = NULL; |
| } |
| g_clear_error (&err); |
| break; |
| } |
| default: |
| break; |
| } |
| |
| if (msg) |
| GST_BIN_CLASS (parent_class)->handle_message (bin, msg); |
| } |
| |
| /* generic struct passed to all query fold methods |
| * FIXME, move to core. |
| */ |
| typedef struct |
| { |
| GstQuery *query; |
| gint64 min; |
| gint64 max; |
| gboolean seekable; |
| gboolean live; |
| } QueryFold; |
| |
| typedef void (*QueryInitFunction) (GstURIDecodeBin * dec, QueryFold * fold); |
| typedef void (*QueryDoneFunction) (GstURIDecodeBin * dec, QueryFold * fold); |
| |
| /* for duration/position we collect all durations/positions and take |
| * the MAX of all valid results */ |
| static void |
| decoder_query_init (GstURIDecodeBin * dec, QueryFold * fold) |
| { |
| fold->min = 0; |
| fold->max = -1; |
| fold->seekable = TRUE; |
| fold->live = 0; |
| } |
| |
| static gboolean |
| decoder_query_duration_fold (const GValue * item, GValue * ret, |
| QueryFold * fold) |
| { |
| GstPad *pad = g_value_get_object (item); |
| |
| if (gst_pad_query (pad, fold->query)) { |
| gint64 duration; |
| |
| g_value_set_boolean (ret, TRUE); |
| |
| gst_query_parse_duration (fold->query, NULL, &duration); |
| |
| GST_DEBUG_OBJECT (item, "got duration %" G_GINT64_FORMAT, duration); |
| |
| if (duration > fold->max) |
| fold->max = duration; |
| } |
| return TRUE; |
| } |
| |
| static void |
| decoder_query_duration_done (GstURIDecodeBin * dec, QueryFold * fold) |
| { |
| GstFormat format; |
| |
| gst_query_parse_duration (fold->query, &format, NULL); |
| /* store max in query result */ |
| gst_query_set_duration (fold->query, format, fold->max); |
| |
| GST_DEBUG ("max duration %" G_GINT64_FORMAT, fold->max); |
| } |
| |
| static gboolean |
| decoder_query_position_fold (const GValue * item, GValue * ret, |
| QueryFold * fold) |
| { |
| GstPad *pad = g_value_get_object (item); |
| |
| if (gst_pad_query (pad, fold->query)) { |
| gint64 position; |
| |
| g_value_set_boolean (ret, TRUE); |
| |
| gst_query_parse_position (fold->query, NULL, &position); |
| |
| GST_DEBUG_OBJECT (item, "got position %" G_GINT64_FORMAT, position); |
| |
| if (position > fold->max) |
| fold->max = position; |
| } |
| |
| return TRUE; |
| } |
| |
| static void |
| decoder_query_position_done (GstURIDecodeBin * dec, QueryFold * fold) |
| { |
| GstFormat format; |
| |
| gst_query_parse_position (fold->query, &format, NULL); |
| /* store max in query result */ |
| gst_query_set_position (fold->query, format, fold->max); |
| |
| GST_DEBUG_OBJECT (dec, "max position %" G_GINT64_FORMAT, fold->max); |
| } |
| |
| static gboolean |
| decoder_query_latency_fold (const GValue * item, GValue * ret, QueryFold * fold) |
| { |
| GstPad *pad = g_value_get_object (item); |
| |
| if (gst_pad_query (pad, fold->query)) { |
| GstClockTime min, max; |
| gboolean live; |
| |
| gst_query_parse_latency (fold->query, &live, &min, &max); |
| |
| GST_DEBUG_OBJECT (pad, |
| "got latency min %" GST_TIME_FORMAT ", max %" GST_TIME_FORMAT |
| ", live %d", GST_TIME_ARGS (min), GST_TIME_ARGS (max), live); |
| |
| if (live) { |
| /* for the combined latency we collect the MAX of all min latencies and |
| * the MIN of all max latencies */ |
| if (min > fold->min) |
| fold->min = min; |
| if (fold->max == -1) |
| fold->max = max; |
| else if (max < fold->max) |
| fold->max = max; |
| |
| fold->live = TRUE; |
| } |
| } else { |
| GST_LOG_OBJECT (pad, "latency query failed"); |
| g_value_set_boolean (ret, FALSE); |
| } |
| |
| return TRUE; |
| } |
| |
| static void |
| decoder_query_latency_done (GstURIDecodeBin * dec, QueryFold * fold) |
| { |
| /* store max in query result */ |
| gst_query_set_latency (fold->query, fold->live, fold->min, fold->max); |
| |
| GST_DEBUG_OBJECT (dec, |
| "latency min %" GST_TIME_FORMAT ", max %" GST_TIME_FORMAT |
| ", live %d", GST_TIME_ARGS (fold->min), GST_TIME_ARGS (fold->max), |
| fold->live); |
| } |
| |
| /* we are seekable if all srcpads are seekable */ |
| static gboolean |
| decoder_query_seeking_fold (const GValue * item, GValue * ret, QueryFold * fold) |
| { |
| GstPad *pad = g_value_get_object (item); |
| |
| if (gst_pad_query (pad, fold->query)) { |
| gboolean seekable; |
| |
| g_value_set_boolean (ret, TRUE); |
| gst_query_parse_seeking (fold->query, NULL, &seekable, NULL, NULL); |
| |
| GST_DEBUG_OBJECT (item, "got seekable %d", seekable); |
| |
| if (fold->seekable) |
| fold->seekable = seekable; |
| } |
| |
| return TRUE; |
| } |
| |
| static void |
| decoder_query_seeking_done (GstURIDecodeBin * dec, QueryFold * fold) |
| { |
| GstFormat format; |
| |
| gst_query_parse_seeking (fold->query, &format, NULL, NULL, NULL); |
| gst_query_set_seeking (fold->query, format, fold->seekable, 0, -1); |
| |
| GST_DEBUG_OBJECT (dec, "seekable %d", fold->seekable); |
| } |
| |
| /* generic fold, return first valid result */ |
| static gboolean |
| decoder_query_generic_fold (const GValue * item, GValue * ret, QueryFold * fold) |
| { |
| GstPad *pad = g_value_get_object (item); |
| gboolean res; |
| |
| if ((res = gst_pad_query (pad, fold->query))) { |
| g_value_set_boolean (ret, TRUE); |
| GST_DEBUG_OBJECT (item, "answered query %p", fold->query); |
| } |
| |
| /* and stop as soon as we have a valid result */ |
| return !res; |
| } |
| |
| |
| /* we're a bin, the default query handler iterates sink elements, which we don't |
| * have normally. We should just query all source pads. |
| */ |
| static gboolean |
| gst_uri_decode_bin_query (GstElement * element, GstQuery * query) |
| { |
| GstURIDecodeBin *decoder; |
| gboolean res = FALSE; |
| GstIterator *iter; |
| GstIteratorFoldFunction fold_func; |
| QueryInitFunction fold_init = NULL; |
| QueryDoneFunction fold_done = NULL; |
| QueryFold fold_data; |
| GValue ret = { 0 }; |
| gboolean default_ret = FALSE; |
| |
| decoder = GST_URI_DECODE_BIN (element); |
| |
| switch (GST_QUERY_TYPE (query)) { |
| case GST_QUERY_DURATION: |
| /* iterate and collect durations */ |
| fold_func = (GstIteratorFoldFunction) decoder_query_duration_fold; |
| fold_init = decoder_query_init; |
| fold_done = decoder_query_duration_done; |
| break; |
| case GST_QUERY_POSITION: |
| /* iterate and collect durations */ |
| fold_func = (GstIteratorFoldFunction) decoder_query_position_fold; |
| fold_init = decoder_query_init; |
| fold_done = decoder_query_position_done; |
| break; |
| case GST_QUERY_LATENCY: |
| /* iterate and collect durations */ |
| fold_func = (GstIteratorFoldFunction) decoder_query_latency_fold; |
| fold_init = decoder_query_init; |
| fold_done = decoder_query_latency_done; |
| default_ret = TRUE; |
| break; |
| case GST_QUERY_SEEKING: |
| /* iterate and collect durations */ |
| fold_func = (GstIteratorFoldFunction) decoder_query_seeking_fold; |
| fold_init = decoder_query_init; |
| fold_done = decoder_query_seeking_done; |
| break; |
| default: |
| fold_func = (GstIteratorFoldFunction) decoder_query_generic_fold; |
| break; |
| } |
| |
| fold_data.query = query; |
| |
| g_value_init (&ret, G_TYPE_BOOLEAN); |
| g_value_set_boolean (&ret, default_ret); |
| |
| iter = gst_element_iterate_src_pads (element); |
| GST_DEBUG_OBJECT (element, "Sending query %p (type %d) to src pads", |
| query, GST_QUERY_TYPE (query)); |
| |
| if (fold_init) |
| fold_init (decoder, &fold_data); |
| |
| while (TRUE) { |
| GstIteratorResult ires; |
| |
| ires = gst_iterator_fold (iter, fold_func, &ret, &fold_data); |
| |
| switch (ires) { |
| case GST_ITERATOR_RESYNC: |
| gst_iterator_resync (iter); |
| if (fold_init) |
| fold_init (decoder, &fold_data); |
| g_value_set_boolean (&ret, default_ret); |
| break; |
| case GST_ITERATOR_OK: |
| case GST_ITERATOR_DONE: |
| res = g_value_get_boolean (&ret); |
| if (fold_done != NULL && res) |
| fold_done (decoder, &fold_data); |
| goto done; |
| default: |
| res = FALSE; |
| goto done; |
| } |
| } |
| done: |
| gst_iterator_free (iter); |
| |
| return res; |
| } |
| |
| static GstStateChangeReturn |
| gst_uri_decode_bin_change_state (GstElement * element, |
| GstStateChange transition) |
| { |
| GstStateChangeReturn ret; |
| GstURIDecodeBin *decoder; |
| |
| decoder = GST_URI_DECODE_BIN (element); |
| |
| switch (transition) { |
| case GST_STATE_CHANGE_READY_TO_PAUSED: |
| do_async_start (decoder); |
| break; |
| default: |
| break; |
| } |
| |
| ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); |
| if (ret == GST_STATE_CHANGE_FAILURE) |
| goto setup_failed; |
| |
| switch (transition) { |
| case GST_STATE_CHANGE_READY_TO_PAUSED: |
| GST_DEBUG ("ready to paused"); |
| if (!setup_source (decoder)) |
| goto source_failed; |
| |
| ret = GST_STATE_CHANGE_ASYNC; |
| |
| /* And now sync the states of everything we added */ |
| g_slist_foreach (decoder->decodebins, |
| (GFunc) gst_element_sync_state_with_parent, NULL); |
| if (decoder->typefind) |
| ret = gst_element_set_state (decoder->typefind, GST_STATE_PAUSED); |
| if (ret == GST_STATE_CHANGE_FAILURE) |
| goto setup_failed; |
| if (decoder->queue) |
| ret = gst_element_set_state (decoder->queue, GST_STATE_PAUSED); |
| if (ret == GST_STATE_CHANGE_FAILURE) |
| goto setup_failed; |
| if (decoder->source) |
| ret = gst_element_set_state (decoder->source, GST_STATE_PAUSED); |
| if (ret == GST_STATE_CHANGE_FAILURE) |
| goto setup_failed; |
| if (ret == GST_STATE_CHANGE_SUCCESS) |
| ret = GST_STATE_CHANGE_ASYNC; |
| |
| break; |
| case GST_STATE_CHANGE_PAUSED_TO_READY: |
| GST_DEBUG ("paused to ready"); |
| remove_decoders (decoder, FALSE); |
| remove_source (decoder); |
| do_async_done (decoder); |
| g_list_free_full (decoder->missing_plugin_errors, |
| (GDestroyNotify) gst_message_unref); |
| decoder->missing_plugin_errors = NULL; |
| break; |
| case GST_STATE_CHANGE_READY_TO_NULL: |
| GST_DEBUG ("ready to null"); |
| remove_decoders (decoder, TRUE); |
| remove_source (decoder); |
| break; |
| default: |
| break; |
| } |
| |
| if (ret == GST_STATE_CHANGE_NO_PREROLL) |
| do_async_done (decoder); |
| |
| return ret; |
| |
| /* ERRORS */ |
| source_failed: |
| { |
| do_async_done (decoder); |
| return GST_STATE_CHANGE_FAILURE; |
| } |
| setup_failed: |
| { |
| /* clean up leftover groups */ |
| do_async_done (decoder); |
| return GST_STATE_CHANGE_FAILURE; |
| } |
| } |
| |
| gboolean |
| gst_uri_decode_bin_plugin_init (GstPlugin * plugin) |
| { |
| GST_DEBUG_CATEGORY_INIT (gst_uri_decode_bin_debug, "uridecodebin", 0, |
| "URI decoder element"); |
| |
| return gst_element_register (plugin, "uridecodebin", GST_RANK_NONE, |
| GST_TYPE_URI_DECODE_BIN); |
| } |