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vp8: update frame size changes on thread context switches. 

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
This commit is contained in:
Ronald S. Bultje 2012-05-01 09:59:04 -07:00
parent bec207f9f9
commit 82a0497cf3
1 changed files with 2 additions and 0 deletions
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2
libavcodec/vp8.c
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@ -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];