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

[Kyle Manning]

ffmpeg | branch: release/6.0 | Kyle Manning <tt2468 at irltoolkit.com> | Sun Apr  2 16:19:44 2023 -0700| [a6dc92968a325d331bb6dcf9b3b2248026cd1d6c] | 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=a6dc92968a325d331bb6dcf9b3b2248026cd1d6c
---

 libavcodec/nvenc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
index 9acf3e8697..50a4fa6f69 100644
--- a/libavcodec/nvenc.c
+++ b/libavcodec/nvenc.c
@@ -2266,7 +2266,8 @@ static int nvenc_set_timestamp(AVCodecContext *avctx,
     dts = reorder_queue_dequeue(ctx->reorder_queue, avctx, pkt);
 
     if (avctx->codec_descriptor->props & AV_CODEC_PROP_REORDER) {
-        pkt->dts = dts - FFMAX(ctx->encode_config.frameIntervalP - 1, 0) * FFMAX(avctx->ticks_per_frame, 1);
+        pkt->dts = dts -
+            FFMAX(ctx->encode_config.frameIntervalP - 1, 0) * FFMAX(avctx->ticks_per_frame, 1) * FFMAX(avctx->time_base.num, 1);
     } else {
         pkt->dts = pkt->pts;
     }