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avcodec/nvenc: base timestamps on frameIntervalP

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If b-frames were enabled implicitly (if max_b_frames wasn't set by
the caller at all, since a0949d0bcb0eee2f3fffcf9a4810c0295d14c0dc),
we wouldn't offset dts at all, producing invalid pts/dts combinations
(causing loud warnings by ffmpeg, or muxer errors if passed without
an extra cleanup pass).

Instead use frameIntervalP for offsetting, which should always be
accurate.

Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
This commit is contained in:
Martin Storsjö 2021-03-12 22:42:02 +02:00 committed by Timo Rothenpieler
parent 6e2db67801
commit 30cd7feb2d
1 changed files with 1 additions and 1 deletions
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2
libavcodec/nvenc.c
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@ -1921,7 +1921,7 @@ static int nvenc_set_timestamp(AVCodecContext *avctx,
pkt->pts = params->outputTimeStamp;
pkt->dts = timestamp_queue_dequeue(ctx->timestamp_list);
pkt->dts -= FFMAX(avctx->max_b_frames, 0) * FFMAX(avctx->ticks_per_frame, 1);
pkt->dts -= FFMAX(ctx->encode_config.frameIntervalP - 1, 0) * FFMAX(avctx->ticks_per_frame, 1);
return 0;
}