Its use for muxing is not documented, in practice it is incremented per
each packet successfully passed to the muxer's write_packet(). Since
there is a lot of indirection between ffmpeg submitting a packet to the
muxer and it actually being written (e.g. the interleaving queue), using
nb_frames to count packets sent to the muxer is incorrect. Use
OutputStream.packets_written instead.
---
fftools/ffmpeg_mux.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fftools/ffmpeg_mux.c b/fftools/ffmpeg_mux.c
index 059beabaf3..49703ed727 100644
--- a/fftools/ffmpeg_mux.c
+++ b/fftools/ffmpeg_mux.c
@@ -72,7 +72,7 @@ static void do_video_stats(OutputStream *ost, int frame_size)
}
enc = ost->enc_ctx;
- frame_number = ost->st->nb_frames;
+ frame_number = ost->packets_written - 1;
if (vstats_version <= 1) {
fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
ost->quality / (float)FF_QP2LAMBDA);
--
2.34.1
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