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dvdemux: Add support for group-id in the stream-start event

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This commit is contained in:
Sebastian Dröge 2013-07-22 15:21:49 +02:00
parent d67a671bfb
commit c123519fed
2 changed files with 35 additions and 4 deletions
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36
ext/dv/gstdvdemux.c
View file

@ -273,6 +273,8 @@ gst_dvdemux_reset (GstDVDemux * dvdemux)
dvdemux->wide = FALSE;
gst_segment_init (&dvdemux->byte_segment, GST_FORMAT_BYTES);
gst_segment_init (&dvdemux->time_segment, GST_FORMAT_TIME);
dvdemux->have_group_id = FALSE;
dvdemux->group_id = G_MAXUINT;
}
static GstPad *
@ -1124,6 +1126,26 @@ gst_dvdemux_handle_src_event (GstPad * pad, GstObject * parent,
return res;
}
static gboolean
have_group_id (GstDVDemux * demux)
{
GstEvent *event;
event = gst_pad_get_sticky_event (demux->sinkpad, GST_EVENT_STREAM_START, 0);
if (event) {
if (gst_event_parse_group_id (event, &demux->group_id))
demux->have_group_id = TRUE;
else
demux->have_group_id = FALSE;
gst_event_unref (event);
} else if (!demux->have_group_id) {
demux->have_group_id = TRUE;
demux->group_id = gst_util_group_id_next ();
}
return demux->have_group_id;
}
/* does not take ownership of buffer */
static GstFlowReturn
gst_dvdemux_demux_audio (GstDVDemux * dvdemux, GstBuffer * buffer,
@ -1154,13 +1176,16 @@ gst_dvdemux_demux_audio (GstDVDemux * dvdemux, GstBuffer * buffer,
|| (channels != dvdemux->channels))) {
GstCaps *caps;
GstAudioInfo info;
GstEvent *event;
gchar *stream_id;
stream_id =
gst_pad_create_stream_id (dvdemux->audiosrcpad,
GST_ELEMENT_CAST (dvdemux), "audio");
gst_pad_push_event (dvdemux->audiosrcpad,
gst_event_new_stream_start (stream_id));
event = gst_event_new_stream_start (stream_id);
if (have_group_id (dvdemux))
gst_event_set_group_id (event, dvdemux->group_id);
gst_pad_push_event (dvdemux->audiosrcpad, event);
g_free (stream_id);
dvdemux->frequency = frequency;
@ -1230,13 +1255,16 @@ gst_dvdemux_demux_video (GstDVDemux * dvdemux, GstBuffer * buffer,
if (G_UNLIKELY ((dvdemux->height != height) || dvdemux->wide != wide)) {
GstCaps *caps;
gint par_x, par_y;
GstEvent *event;
gchar *stream_id;
stream_id =
gst_pad_create_stream_id (dvdemux->videosrcpad,
GST_ELEMENT_CAST (dvdemux), "video");
gst_pad_push_event (dvdemux->videosrcpad,
gst_event_new_stream_start (stream_id));
event = gst_event_new_stream_start (stream_id);
if (have_group_id (dvdemux))
gst_event_set_group_id (event, dvdemux->group_id);
gst_pad_push_event (dvdemux->videosrcpad, event);
g_free (stream_id);
dvdemux->height = height;

3
ext/dv/gstdvdemux.h
View file

@ -52,6 +52,9 @@ struct _GstDVDemux {
GstPad *videosrcpad;
GstPad *audiosrcpad;
gboolean have_group_id;
guint group_id;
dv_decoder_t *decoder;
GstAdapter *adapter;