diff options
Diffstat (limited to 'contrib/ffmpeg/A10-mpeg-quarter-sample.patch')
| -rw-r--r-- | contrib/ffmpeg/A10-mpeg-quarter-sample.patch | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/contrib/ffmpeg/A10-mpeg-quarter-sample.patch b/contrib/ffmpeg/A10-mpeg-quarter-sample.patch new file mode 100644 index 000000000..a2febd761 --- /dev/null +++ b/contrib/ffmpeg/A10-mpeg-quarter-sample.patch @@ -0,0 +1,30 @@ +From 5282db5929f25ca9566a47ad217794842b364afc Mon Sep 17 00:00:00 2001 +From: Andriy Gelman <[email protected]> +Date: Wed, 12 Dec 2018 23:57:35 -0500 +Subject: [PATCH] avcodec/mpeg: Initialize quarter_sample parameter from + previous thread. + +Fixes #7410. +The value of sub-pixel precision for me/mc can change during an Intra frame. In multi-threaded decoding this change is not propagated to other frame threads causing decoding artifacts. This patch initializes the sub-pixel precision parameter from previous thread, which fixes the issue. + +Signed-off-by: Michael Niedermayer <[email protected]> +--- + libavcodec/mpegvideo.c | 2 ++ + 1 file changed, 2 insertions(+) + +diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c +index d4d3bea..dbb6ab9 100644 +--- a/libavcodec/mpegvideo.c ++++ b/libavcodec/mpegvideo.c +@@ -538,6 +538,8 @@ int ff_mpeg_update_thread_context(AVCodecContext *dst, + s->avctx->width = s1->avctx->width; + s->avctx->height = s1->avctx->height; + ++ s->quarter_sample = s1->quarter_sample; ++ + s->coded_picture_number = s1->coded_picture_number; + s->picture_number = s1->picture_number; + +-- +1.9.1 + |