[FFmpeg-cvslog] fftools/ffmpeg_filter: keep track of filtergraph input timebase
Anton Khirnov
git at videolan.org
Tue May 2 12:31:17 EEST 2023
ffmpeg | branch: master | Anton Khirnov <anton at khirnov.net> | Tue Apr 25 23:55:44 2023 +0200| [0aada80e732e1ecfd6df249777e3dafc423fcda4] | committer: Anton Khirnov
fftools/ffmpeg_filter: keep track of filtergraph input timebase
Will be useful in following commits.
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0aada80e732e1ecfd6df249777e3dafc423fcda4
---
fftools/ffmpeg_filter.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/fftools/ffmpeg_filter.c b/fftools/ffmpeg_filter.c
index 78789600bf..43eb8c94a5 100644
--- a/fftools/ffmpeg_filter.c
+++ b/fftools/ffmpeg_filter.c
@@ -55,6 +55,8 @@ static FilterGraphPriv *fgp_from_fg(FilterGraph *fg)
typedef struct InputFilterPriv {
InputFilter ifilter;
+ AVRational time_base;
+
AVFifo *frame_queue;
} InputFilterPriv;
@@ -971,13 +973,13 @@ static int sub2video_prepare(InputStream *ist, InputFilter *ifilter)
static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
AVFilterInOut *in)
{
+ InputFilterPriv *ifp = ifp_from_ifilter(ifilter);
+
AVFilterContext *last_filter;
const AVFilter *buffer_filt = avfilter_get_by_name("buffer");
const AVPixFmtDescriptor *desc;
InputStream *ist = ifilter->ist;
InputFile *f = input_files[ist->file_index];
- AVRational tb = ist->framerate.num ? av_inv_q(ist->framerate) :
- ist->st->time_base;
AVRational fr = ist->framerate;
AVRational sar;
AVBPrint args;
@@ -1006,6 +1008,9 @@ static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
goto fail;
}
+ ifp->time_base = ist->framerate.num ? av_inv_q(ist->framerate) :
+ ist->st->time_base;
+
sar = ifilter->sample_aspect_ratio;
if(!sar.den)
sar = (AVRational){0,1};
@@ -1014,7 +1019,7 @@ static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
"video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:"
"pixel_aspect=%d/%d",
ifilter->width, ifilter->height, ifilter->format,
- tb.num, tb.den, sar.num, sar.den);
+ ifp->time_base.num, ifp->time_base.den, sar.num, sar.den);
if (fr.num && fr.den)
av_bprintf(&args, ":frame_rate=%d/%d", fr.num, fr.den);
snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
@@ -1096,6 +1101,7 @@ fail:
static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
AVFilterInOut *in)
{
+ InputFilterPriv *ifp = ifp_from_ifilter(ifilter);
AVFilterContext *last_filter;
const AVFilter *abuffer_filt = avfilter_get_by_name("abuffer");
InputStream *ist = ifilter->ist;
@@ -1110,9 +1116,11 @@ static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
return AVERROR(EINVAL);
}
+ ifp->time_base = (AVRational){ 1, ifilter->sample_rate };
+
av_bprint_init(&args, 0, AV_BPRINT_SIZE_AUTOMATIC);
av_bprintf(&args, "time_base=%d/%d:sample_rate=%d:sample_fmt=%s",
- 1, ifilter->sample_rate,
+ ifp->time_base.num, ifp->time_base.den,
ifilter->sample_rate,
av_get_sample_fmt_name(ifilter->format));
if (av_channel_layout_check(&ifilter->ch_layout) &&
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