[FFmpeg-cvslog] avcodec/nvenc: fix b-frame DTS behavior with fractional framerates

[Kyle Manning]

ffmpeg | branch: release/5.1 | Kyle Manning <tt2468 at irltoolkit.com> | Sun Apr  2 16:19:44 2023 -0700| [00282752165a8d1e252c4a07b262d9384f618759] | committer: Timo Rothenpieler

avcodec/nvenc: fix b-frame DTS behavior with fractional framerates

When using fractional framerates (or any fraction with a numerator != 1),
DTS values for packets would be calculated incorrectly.

Signed-off-by: Kyle Manning <tt2468 at irltoolkit.com>
Signed-off-by: Timo Rothenpieler <timo at rothenpieler.org>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=00282752165a8d1e252c4a07b262d9384f618759
---

 libavcodec/nvenc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
index 4450df774c..5d4989861c 100644
--- a/libavcodec/nvenc.c
+++ b/libavcodec/nvenc.c
@@ -2032,7 +2032,7 @@ static int nvenc_set_timestamp(AVCodecContext *avctx,
     pkt->pts = params->outputTimeStamp;
     pkt->dts = timestamp_queue_dequeue(ctx->timestamp_list);
 
-    pkt->dts -= FFMAX(ctx->encode_config.frameIntervalP - 1, 0) * FFMAX(avctx->ticks_per_frame, 1);
+    pkt->dts -= FFMAX(ctx->encode_config.frameIntervalP - 1, 0) * FFMAX(avctx->ticks_per_frame, 1) * FFMAX(avctx->time_base.num, 1);
 
     return 0;
 }