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dvdemux: Send stream-start, caps and segment events in the right order
https://bugzilla.gnome.org/show_bug.cgi?id=709728
This commit is contained in:
Sebastian Dröge
parent
b8f9e966d5
commit
fa399bf834
1 changed files with 64 additions and 58 deletions
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@ -277,11 +277,34 @@ gst_dvdemux_reset (GstDVDemux * dvdemux)
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dvdemux->group_id = G_MAXUINT;
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}
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static gboolean
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have_group_id (GstDVDemux * demux)
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{
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GstEvent *event;
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event = gst_pad_get_sticky_event (demux->sinkpad, GST_EVENT_STREAM_START, 0);
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if (event) {
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if (gst_event_parse_group_id (event, &demux->group_id))
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demux->have_group_id = TRUE;
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else
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demux->have_group_id = FALSE;
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gst_event_unref (event);
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} else if (!demux->have_group_id) {
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demux->have_group_id = TRUE;
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demux->group_id = gst_util_group_id_next ();
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}
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return demux->have_group_id;
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}
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static GstPad *
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gst_dvdemux_add_pad (GstDVDemux * dvdemux, GstStaticPadTemplate * template)
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gst_dvdemux_add_pad (GstDVDemux * dvdemux, GstStaticPadTemplate * template,
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GstCaps * caps)
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{
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gboolean no_more_pads;
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GstPad *pad;
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GstEvent *event;
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gchar *stream_id;
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pad = gst_pad_new_from_static_template (template, template->name_template);
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@ -291,6 +314,21 @@ gst_dvdemux_add_pad (GstDVDemux * dvdemux, GstStaticPadTemplate * template)
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GST_DEBUG_FUNCPTR (gst_dvdemux_handle_src_event));
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gst_pad_use_fixed_caps (pad);
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gst_pad_set_active (pad, TRUE);
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stream_id =
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gst_pad_create_stream_id (pad,
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GST_ELEMENT_CAST (dvdemux),
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template == &video_src_temp ? "video" : "audio");
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event = gst_event_new_stream_start (stream_id);
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if (have_group_id (dvdemux))
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gst_event_set_group_id (event, dvdemux->group_id);
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gst_pad_push_event (pad, event);
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g_free (stream_id);
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gst_pad_set_caps (pad, caps);
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gst_pad_push_event (pad, gst_event_new_segment (&dvdemux->time_segment));
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gst_element_add_pad (GST_ELEMENT (dvdemux), pad);
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no_more_pads =
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@ -300,14 +338,18 @@ gst_dvdemux_add_pad (GstDVDemux * dvdemux, GstStaticPadTemplate * template)
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if (no_more_pads)
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gst_element_no_more_pads (GST_ELEMENT (dvdemux));
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gst_pad_push_event (pad, gst_event_new_segment (&dvdemux->time_segment));
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if (no_more_pads) {
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GstTagList *tags;
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tags = gst_tag_list_new (GST_TAG_CONTAINER_FORMAT, "DV", NULL);
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gst_tag_list_set_scope (tags, GST_TAG_SCOPE_GLOBAL);
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gst_pad_push_event (pad, gst_event_new_tag (tags));
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if (dvdemux->videosrcpad)
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gst_pad_push_event (dvdemux->videosrcpad,
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gst_event_new_tag (gst_tag_list_ref (tags)));
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if (dvdemux->audiosrcpad)
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gst_pad_push_event (dvdemux->audiosrcpad,
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gst_event_new_tag (gst_tag_list_ref (tags)));
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gst_tag_list_unref (tags);
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}
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return pad;
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@ -1126,26 +1168,6 @@ gst_dvdemux_handle_src_event (GstPad * pad, GstObject * parent,
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return res;
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}
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static gboolean
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have_group_id (GstDVDemux * demux)
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{
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GstEvent *event;
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event = gst_pad_get_sticky_event (demux->sinkpad, GST_EVENT_STREAM_START, 0);
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if (event) {
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if (gst_event_parse_group_id (event, &demux->group_id))
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demux->have_group_id = TRUE;
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else
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demux->have_group_id = FALSE;
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gst_event_unref (event);
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} else if (!demux->have_group_id) {
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demux->have_group_id = TRUE;
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demux->group_id = gst_util_group_id_next ();
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}
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return demux->have_group_id;
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}
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/* does not take ownership of buffer */
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static GstFlowReturn
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gst_dvdemux_demux_audio (GstDVDemux * dvdemux, GstBuffer * buffer,
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@ -1165,28 +1187,15 @@ gst_dvdemux_demux_audio (GstDVDemux * dvdemux, GstBuffer * buffer,
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GstBuffer *outbuf;
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gint frequency, channels;
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if (G_UNLIKELY (dvdemux->audiosrcpad == NULL))
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dvdemux->audiosrcpad = gst_dvdemux_add_pad (dvdemux, &audio_src_temp);
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/* get initial format or check if format changed */
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frequency = dv_get_frequency (dvdemux->decoder);
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channels = dv_get_num_channels (dvdemux->decoder);
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if (G_UNLIKELY ((frequency != dvdemux->frequency)
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if (G_UNLIKELY ((dvdemux->audiosrcpad == NULL)
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|| (frequency != dvdemux->frequency)
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|| (channels != dvdemux->channels))) {
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GstCaps *caps;
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GstAudioInfo info;
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GstEvent *event;
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gchar *stream_id;
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stream_id =
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gst_pad_create_stream_id (dvdemux->audiosrcpad,
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GST_ELEMENT_CAST (dvdemux), "audio");
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event = gst_event_new_stream_start (stream_id);
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if (have_group_id (dvdemux))
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gst_event_set_group_id (event, dvdemux->group_id);
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gst_pad_push_event (dvdemux->audiosrcpad, event);
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g_free (stream_id);
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dvdemux->frequency = frequency;
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dvdemux->channels = channels;
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@ -1195,7 +1204,12 @@ gst_dvdemux_demux_audio (GstDVDemux * dvdemux, GstBuffer * buffer,
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gst_audio_info_set_format (&info, GST_AUDIO_FORMAT_S16LE,
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frequency, channels, NULL);
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caps = gst_audio_info_to_caps (&info);
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gst_pad_set_caps (dvdemux->audiosrcpad, caps);
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if (G_UNLIKELY (dvdemux->audiosrcpad == NULL)) {
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dvdemux->audiosrcpad =
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gst_dvdemux_add_pad (dvdemux, &audio_src_temp, caps);
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} else {
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gst_pad_set_caps (dvdemux->audiosrcpad, caps);
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}
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gst_caps_unref (caps);
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}
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@ -1243,29 +1257,16 @@ gst_dvdemux_demux_video (GstDVDemux * dvdemux, GstBuffer * buffer,
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gboolean wide;
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GstFlowReturn ret = GST_FLOW_OK;
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if (G_UNLIKELY (dvdemux->videosrcpad == NULL))
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dvdemux->videosrcpad = gst_dvdemux_add_pad (dvdemux, &video_src_temp);
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/* get params */
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/* framerate is already up-to-date */
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height = dvdemux->decoder->height;
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wide = dv_format_wide (dvdemux->decoder);
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/* see if anything changed */
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if (G_UNLIKELY ((dvdemux->height != height) || dvdemux->wide != wide)) {
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GstCaps *caps;
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if (G_UNLIKELY ((dvdemux->videosrcpad == NULL) || (dvdemux->height != height)
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|| dvdemux->wide != wide)) {
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gint par_x, par_y;
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GstEvent *event;
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gchar *stream_id;
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stream_id =
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gst_pad_create_stream_id (dvdemux->videosrcpad,
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GST_ELEMENT_CAST (dvdemux), "video");
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event = gst_event_new_stream_start (stream_id);
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if (have_group_id (dvdemux))
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gst_event_set_group_id (event, dvdemux->group_id);
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gst_pad_push_event (dvdemux->videosrcpad, event);
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g_free (stream_id);
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GstCaps *caps;
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dvdemux->height = height;
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dvdemux->wide = wide;
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@ -1295,7 +1296,13 @@ gst_dvdemux_demux_video (GstDVDemux * dvdemux, GstBuffer * buffer,
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"framerate", GST_TYPE_FRACTION, dvdemux->framerate_numerator,
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dvdemux->framerate_denominator,
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"pixel-aspect-ratio", GST_TYPE_FRACTION, par_x, par_y, NULL);
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gst_pad_set_caps (dvdemux->videosrcpad, caps);
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if (G_UNLIKELY (dvdemux->videosrcpad == NULL)) {
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dvdemux->videosrcpad =
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gst_dvdemux_add_pad (dvdemux, &video_src_temp, caps);
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} else {
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gst_pad_set_caps (dvdemux->videosrcpad, caps);
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}
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gst_caps_unref (caps);
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}
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@ -1691,7 +1698,6 @@ gst_dvdemux_loop (GstPad * pad)
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}
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}
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if (G_UNLIKELY (dvdemux->pending_segment)) {
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/* now send the newsegment */
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