[FFmpeg-devel] [PATCH 9/9] fftools/ffmpeg: move derivation of frame duration from filter framerate
Anton Khirnov
anton at khirnov.net
Sun Oct 1 15:55:52 EEST 2023
>From ffmpeg_enc to ffmpeg_filter, which is a more appropriate
place for it.
---
fftools/ffmpeg_enc.c | 9 +--------
fftools/ffmpeg_filter.c | 6 +++++-
2 files changed, 6 insertions(+), 9 deletions(-)
diff --git a/fftools/ffmpeg_enc.c b/fftools/ffmpeg_enc.c
index 6c00156121..ec9cebbd96 100644
--- a/fftools/ffmpeg_enc.c
+++ b/fftools/ffmpeg_enc.c
@@ -1109,16 +1109,9 @@ static int do_video_out(OutputFile *of, OutputStream *ost, AVFrame *frame)
int64_t nb_frames, nb_frames_prev, i;
double duration = 0;
- if (frame) {
- FrameData *fd = frame_data(frame);
-
+ if (frame)
duration = frame->duration * av_q2d(frame->time_base) / av_q2d(enc->time_base);
- if (duration <= 0 &&
- fd->frame_rate_filter.num > 0 && fd->frame_rate_filter.den > 0)
- duration = 1 / (av_q2d(fd->frame_rate_filter) * av_q2d(enc->time_base));
- }
-
video_sync_process(of, ost, frame, duration,
&nb_frames, &nb_frames_prev);
diff --git a/fftools/ffmpeg_filter.c b/fftools/ffmpeg_filter.c
index 9bf870b615..b6348d7f87 100644
--- a/fftools/ffmpeg_filter.c
+++ b/fftools/ffmpeg_filter.c
@@ -1817,8 +1817,12 @@ static int fg_output_step(OutputFilterPriv *ofp, int flush)
if (ost->type == AVMEDIA_TYPE_VIDEO) {
AVRational fr = av_buffersink_get_frame_rate(filter);
- if (fr.num > 0 && fr.den > 0)
+ if (fr.num > 0 && fr.den > 0) {
fd->frame_rate_filter = fr;
+
+ if (!frame->duration)
+ frame->duration = av_rescale_q(1, av_inv_q(fr), frame->time_base);
+ }
}
ret = enc_frame(ost, frame);
--
2.40.1
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