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fftools/ffmpeg_mux: set stream duration after the timebase is certainly known

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Stop assuming the encoder knows the muxing timebase, which does not
always have to hold (e.g. due to bitstream filters).
This commit is contained in:
Anton Khirnov
2023-05-28 10:43:36 +02:00
parent ba1141d8a9
commit 57021a68d9
4 changed files with 14 additions and 8 deletions
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4
fftools/ffmpeg_enc.c
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@@ -445,10 +445,6 @@ 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});
// copy estimated duration as a hint to the muxer
if (ost->st->duration <= 0 && ist && ist->st->duration > 0)
ost->st->duration = av_rescale_q(ist->st->duration, ist->st->time_base, ost->st->time_base);
ost->mux_timebase = enc_ctx->time_base;
ret = of_stream_init(of, ost);