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decklink: Our capture time is the end timestamp of the buffer, subtract the duration

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This commit is contained in:
Sebastian Dröge 2014-12-19 12:37:30 +01:00
parent 4ef676f109
commit 7c0fb92f1b
2 changed files with 24 additions and 5 deletions
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13
sys/decklink/gstdecklinkaudiosrc.cpp
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@ -324,6 +324,7 @@ gst_decklink_audio_src_create (GstPushSrc * bsrc, GstBuffer ** buffer)
gsize data_size;
CapturePacket *p;
AudioPacket *ap;
GstClockTime timestamp, duration;
g_mutex_lock (&self->lock);
while (g_queue_is_empty (&self->current_packets) && !self->flushing) {
@ -356,9 +357,17 @@ gst_decklink_audio_src_create (GstPushSrc * bsrc, GstBuffer ** buffer)
ap->input->AddRef ();
// TODO: Jitter/discont handling
GST_BUFFER_TIMESTAMP (*buffer) = p->capture_time;
GST_BUFFER_DURATION (*buffer) =
duration =
gst_util_uint64_scale_int (sample_count, GST_SECOND, self->info.rate);
// Our capture time is the end timestamp, subtract the
// duration to get the start timestamp
if (p->capture_time >= duration)
timestamp = p->capture_time - duration;
else
timestamp = 0;
GST_BUFFER_TIMESTAMP (*buffer) = timestamp;
GST_BUFFER_DURATION (*buffer) = duration;
capture_packet_free (p);

16
sys/decklink/gstdecklinkvideosrc.cpp
View file

@ -268,6 +268,7 @@ gst_decklink_video_src_create (GstPushSrc * bsrc, GstBuffer ** buffer)
gsize data_size;
VideoFrame *vf;
CaptureFrame *f;
GstClockTime timestamp, duration;
g_mutex_lock (&self->lock);
while (g_queue_is_empty (&self->current_frames) && !self->flushing) {
@ -299,9 +300,18 @@ gst_decklink_video_src_create (GstPushSrc * bsrc, GstBuffer ** buffer)
vf->input = self->input->input;
vf->input->AddRef ();
GST_BUFFER_TIMESTAMP (*buffer) = f->capture_time;
GST_BUFFER_DURATION (*buffer) = gst_util_uint64_scale_int (GST_SECOND,
self->info.fps_d, self->info.fps_n);
duration =
gst_util_uint64_scale_int (GST_SECOND, self->info.fps_d,
self->info.fps_n);
// Our capture time is the end timestamp, subtract the
// duration to get the start timestamp
if (f->capture_time >= duration)
timestamp = f->capture_time - duration;
else
timestamp = 0;
GST_BUFFER_TIMESTAMP (*buffer) = timestamp;
GST_BUFFER_DURATION (*buffer) = duration;
capture_frame_free (f);