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avdevice/decklink: addition of copyts option 

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Vishwanath Dixit 2018-01-15 13:51:46 +05:30 committed by Marton Balint
parent e3acba0d5d
commit 7c27bbd590
4 changed files with 18 additions and 7 deletions
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5
doc/indevs.texi
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@ -317,6 +317,11 @@ Defaults to @samp{1073741824}.
Sets the audio sample bit depth. Must be @samp{16} or @samp{32}.
Defaults to @samp{16}.
@item decklink_copyts
If set to @option{true}, timestamps are forwarded as they are without removing
the initial offset.
Defaults to @option{false}.
@end table
@subsection Examples

1
libavdevice/decklink_common_c.h
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@ -52,6 +52,7 @@ struct decklink_cctx {
char *format_code;
int raw_format;
int64_t queue_size;
int copyts;
};
#endif /* AVDEVICE_DECKLINK_COMMON_C_H */

18
libavdevice/decklink_dec.cpp
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@ -586,7 +586,8 @@ static int64_t get_pkt_pts(IDeckLinkVideoInputFrame *videoFrame,
IDeckLinkAudioInputPacket *audioFrame,
int64_t wallclock,
DecklinkPtsSource pts_src,
AVRational time_base, int64_t *initial_pts)
AVRational time_base, int64_t *initial_pts,
int copyts)
{
int64_t pts = AV_NOPTS_VALUE;
BMDTimeValue bmd_pts;
@ -619,10 +620,12 @@ static int64_t get_pkt_pts(IDeckLinkVideoInputFrame *videoFrame,
if (res == S_OK)
pts = bmd_pts / time_base.num;
if (pts != AV_NOPTS_VALUE && *initial_pts == AV_NOPTS_VALUE)
*initial_pts = pts;
if (*initial_pts != AV_NOPTS_VALUE)
pts -= *initial_pts;
if (!copyts) {
if (pts != AV_NOPTS_VALUE && *initial_pts == AV_NOPTS_VALUE)
*initial_pts = pts;
if (*initial_pts != AV_NOPTS_VALUE)
pts -= *initial_pts;
}
return pts;
}
@ -635,6 +638,7 @@ HRESULT decklink_input_callback::VideoInputFrameArrived(
BMDTimeValue frameTime;
BMDTimeValue frameDuration;
int64_t wallclock = 0;
struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
if (ctx->autodetect) {
if (videoFrame && !(videoFrame->GetFlags() & bmdFrameHasNoInputSource) &&
@ -694,7 +698,7 @@ HRESULT decklink_input_callback::VideoInputFrameArrived(
no_video = 0;
}
pkt.pts = get_pkt_pts(videoFrame, audioFrame, wallclock, ctx->video_pts_source, ctx->video_st->time_base, &initial_video_pts);
pkt.pts = get_pkt_pts(videoFrame, audioFrame, wallclock, ctx->video_pts_source, ctx->video_st->time_base, &initial_video_pts, cctx->copyts);
pkt.dts = pkt.pts;
pkt.duration = frameDuration;
@ -785,7 +789,7 @@ HRESULT decklink_input_callback::VideoInputFrameArrived(
pkt.size = audioFrame->GetSampleFrameCount() * ctx->audio_st->codecpar->channels * (ctx->audio_depth / 8);
audioFrame->GetBytes(&audioFrameBytes);
audioFrame->GetPacketTime(&audio_pts, ctx->audio_st->time_base.den);
pkt.pts = get_pkt_pts(videoFrame, audioFrame, wallclock, ctx->audio_pts_source, ctx->audio_st->time_base, &initial_audio_pts);
pkt.pts = get_pkt_pts(videoFrame, audioFrame, wallclock, ctx->audio_pts_source, ctx->audio_st->time_base, &initial_audio_pts, cctx->copyts);
pkt.dts = pkt.pts;
//fprintf(stderr,"Audio Frame size %d ts %d\n", pkt.size, pkt.pts);

1
libavdevice/decklink_dec_c.c
View File

@ -73,6 +73,7 @@ static const AVOption options[] = {
{ "draw_bars", "draw bars on signal loss" , OFFSET(draw_bars), AV_OPT_TYPE_BOOL, { .i64 = 1}, 0, 1, DEC },
{ "queue_size", "input queue buffer size", OFFSET(queue_size), AV_OPT_TYPE_INT64, { .i64 = (1024 * 1024 * 1024)}, 0, INT64_MAX, DEC },
{ "audio_depth", "audio bitdepth (16 or 32)", OFFSET(audio_depth), AV_OPT_TYPE_INT, { .i64 = 16}, 16, 32, DEC },
{ "decklink_copyts", "copy timestamps, do not remove the initial offset", OFFSET(copyts), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC },
{ NULL },
};