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[FFmpeg-devel,v3] avcodec/nvenc: fix b-frame DTS behavior with fractional framerates

Message ID 20230402231944.367698-1-tt2468@irltoolkit.com
State New
Headers show
Series [FFmpeg-devel,v3] avcodec/nvenc: fix b-frame DTS behavior with fractional framerates | expand

Checks

Context Check Description
andriy/make_x86 success Make finished
andriy/make_fate_x86 success Make fate finished

Commit Message

tt2468 April 2, 2023, 11:19 p.m. UTC 
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@irltoolkit.com>
---
 libavcodec/nvenc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Timo Rothenpieler April 3, 2023, 10:18 a.m. UTC | #1 
applied, thanks!
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Patch

diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
index 9acf3e8697..dc9a9d399e 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) * avctx->time_base.num;
     } else {
         pkt->dts = pkt->pts;
     }