On 22/12/13 02:27, Mason Carter wrote:
> Fix https://trac.ffmpeg.org/ticket/3204
>
> The problem was that intensity compensation was always used once it was
> encountered. This is because v->next_use_ic was never set back to zero.
> To fix this, when resetting v->next_luty/uv, also reset v->next_use_ic.
>
> This improved (restored) performance by 85% when decoding
> http://bit.ly/bbbwmv
> ---
> libavcodec/vc1.c | 4 ++++
> 1 file changed, 4 insertions(+)
I'd use
vc1: Fix intensity compensation performance regression
Introduced by 28243b0d35b47bbf9abbd454fc444a6e0a9e7b71
Intensity compensation is always used once it was encountered, because
v->next_use_ic is never set back to zero.
Reset v->next_use_ic, when resetting v->next_luty/uv.
It looks fine to me, and FATE passes.
I'll wait for Kostya before pushing.
Thanks a lot!
lu
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