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decklinkaudiosrc: Don't accept packets without timestamps after a discont

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We have no idea which timestamps they are supposed to have so the only thing
we can do at this point is to drop them. Packets without timestamps happen if
audio was captured but no corresponding video, which shouldn't happen under
normal circumstances.

https://bugzilla.gnome.org/show_bug.cgi?id=747633
This commit is contained in:
Sebastian Dröge 2016-04-05 14:49:51 +03:00
parent 0004920c83
commit f06647fd0c
1 changed files with 10 additions and 1 deletions
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11
sys/decklink/gstdecklinkaudiosrc.cpp
View file

@ -411,7 +411,8 @@ gst_decklink_audio_src_get_caps (GstBaseSrc * bsrc, GstCaps * filter)
static void
gst_decklink_audio_src_got_packet (GstElement * element,
IDeckLinkAudioInputPacket * packet, GstClockTime capture_time, gboolean discont)
IDeckLinkAudioInputPacket * packet, GstClockTime capture_time,
gboolean discont)
{
GstDecklinkAudioSrc *self = GST_DECKLINK_AUDIO_SRC_CAST (element);
GstDecklinkVideoSrc *videosrc = NULL;
@ -470,6 +471,7 @@ gst_decklink_audio_src_create (GstPushSrc * bsrc, GstBuffer ** buffer)
guint64 start_offset, end_offset;
gboolean discont = FALSE;
retry:
g_mutex_lock (&self->lock);
while (g_queue_is_empty (&self->current_packets) && !self->flushing) {
g_cond_wait (&self->cond, &self->lock);
@ -489,6 +491,13 @@ gst_decklink_audio_src_create (GstPushSrc * bsrc, GstBuffer ** buffer)
sample_count = p->packet->GetSampleFrameCount ();
data_size = self->info.bpf * sample_count;
if (p->capture_time == GST_CLOCK_TIME_NONE && self->next_offset == (guint64) - 1) {
GST_DEBUG_OBJECT (self, "Got packet without timestamp before initial "
"timestamp after discont - dropping");
capture_packet_free (p);
goto retry;
}
ap = (AudioPacket *) g_malloc0 (sizeof (AudioPacket));
*buffer =