void-packages/srcpkgs/ffmpeg/patches/workaround-mesa-readeon-vaapi-bug.patch
Helmut Pozimski cfbc9fc0eb ffmpeg: apply workaround for mesa vaapi bug
Works around https://bugs.freedesktop.org/show_bug.cgi?id=105368
which causes segfaults with vaapi with some radeon card.
The patch was written by the kodi developers and sent
upstream in http://ffmpeg.org/pipermail/ffmpeg-devel/2019-March/240862.html .
2020-05-31 12:31:45 +02:00

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From 811d290844206fc73dc39c3e5b67d5d895baedf8 Mon Sep 17 00:00:00 2001
From: Rainer Hochecker <fernetmenta@online.de>
Date: Sat, 26 Jan 2019 19:48:35 +0100
Subject: [PATCH] avcodec/vaapi_h264: skip decode if pic has no slices
This fixes / workarounds https://bugs.freedesktop.org/show_bug.cgi?id=105368.
It was hit frequently when watching h264 channels received via DVB-X.
Corresponding kodi bug: https://github.com/xbmc/xbmc/issues/15704
---
libavcodec/vaapi_h264.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavcodec/vaapi_h264.c b/libavcodec/vaapi_h264.c
index 5854587a255..f12fdc457a4 100644
--- libavcodec/vaapi_h264.c
+++ libavcodec/vaapi_h264.c
@@ -317,6 +317,11 @@ static int vaapi_h264_end_frame(AVCodecContext *avctx)
H264SliceContext *sl = &h->slice_ctx[0];
int ret;
+ if (pic->nb_slices == 0) {
+ ret = AVERROR_INVALIDDATA;
+ goto finish;
+ }
+
ret = ff_vaapi_decode_issue(avctx, pic);
if (ret < 0)
goto finish;