apps/ffmpeg-rockchip
1
0
Fork 0
mirror of https://github.com/nyanmisaka/ffmpeg-rockchip.git synced 2025-11-03 01:33:50 +08:00
Code Issues Packages Projects Releases Wiki Activity

fftools/ffmpeg_mux: stop rescaling timestamps in of_streamcopy()

Browse Source 
This function converts packet timestamps from the input stream timebase
to OutputStream.mux_timebase, which may or may not be equal to the
actual output AVStream timebase (and even when it is, this may not
always be the optimal choice due to bitstream filtering).

Just keep the timestamps in input stream timebase, they will be rescaled
as needed before bitstream filtering and/or sending the packet to the
muxer.

Move the av_rescale_delta() call for audio (needed to preserve accuracy
with coarse demuxer timebases) to write_packet.

Drop now-unused OutputStream.mux_timebase.
This commit is contained in:
Anton Khirnov
2023-07-25 16:28:07 +02:00
parent ed5caaaf22
commit 8ecbb1f9af
5 changed files with 24 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
fftools/ffmpeg_enc.c
View File

@@ -463,8 +463,6 @@ int enc_open(OutputStream *ost, AVFrame *frame)
if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
ost->mux_timebase = enc_ctx->time_base;
ret = of_stream_init(of, ost);
if (ret < 0)
return ret;