From: "Ronald S. Bultje" <[email protected]>
This properly synchronizes frame size changes between threads if
subsequent threads abort decoding before frame size is initialized, i.e.
it prevents the thread after that from ping-ponging back to the original
value.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
---
libavcodec/vp8.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavcodec/vp8.c b/libavcodec/vp8.c
index 1c973d5..d9fdd4d 100644
--- a/libavcodec/vp8.c
+++ b/libavcodec/vp8.c
@@ -1833,6 +1833,8 @@ static int
vp8_decode_update_thread_context(AVCodecContext *dst, const AVCodecCo
(s_src->mb_width != s->mb_width || s_src->mb_height != s->mb_height)) {
free_buffers(s);
s->maps_are_invalid = 1;
+ s->mb_width = s_src->mb_width;
+ s->mb_height = s_src->mb_height;
}
s->prob[0] = s_src->prob[!s_src->update_probabilities];
--
1.7.9.2
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