[FFmpeg-devel] [PATCH] h264 - don't warn about deblocking type 1 without multiple slices

Michael Niedermayer michaelni
Sat Oct 27 21:18:42 CEST 2007


On Fri, Oct 26, 2007 at 05:40:01PM -0400, Alexander Strange wrote:
> If you enable multithreaded decoding for h.264, you get the warning
> "Cannot parallelize deblocking type 1, decoding such frames in sequential 
> order",
> even if the video has only one slice and can't be parallelized anyway.
> This patch disables that bit of code for the first slice in a frame. I 
> tested it on
> single-slice (that it can't parallelize) and multi-slice (that it can), but 
> not on
> type 1 + multi-slice since I can't find any. Is there any on mplayerhq?

this patch is wrong, it will disable the CODEC_FLAG2_FAST behavior of
deblocking_filter == 1 slices

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Let us carefully observe those good qualities wherein our enemies excel us
and endeavor to excel them, by avoiding what is faulty, and imitating what
is excellent in them. -- Plutarch
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