[FFmpeg-devel] [PATCH] Implement PAFF in H.264

Michael Niedermayer michaelni
Fri Dec 14 11:02:52 CET 2007

On Sun, Oct 14, 2007 at 09:17:00PM +0200, Martin Zlomek wrote:
> There is special case for deblocking top- and left-most macroblocks
> in the ffmpeg implementation. The problem is in the condition, which
> tests macroblock y-coordinate for equation to 0, and in y-coordinate
> of top-most macroblocks in bottom fields, where the coordinate is 1.
> The attached patch fixes this problem - the condition is fulfilled
> for top-most macroblocks in both top and bottom fields.
> Decoded I-frames (fields in fact) should be equivalent to those
> decoded by the reference decoder now.
> P-frames are still different...

patching file libavcodec/h264.c
Hunk #1 FAILED at 6372.
Hunk #2 succeeded at 6532 (offset 35 lines).
1 out of 2 hunks FAILED -- saving rejects to file libavcodec/h264.c.rej

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

If a bugfix only changes things apparently unrelated to the bug with no
further explanation, that is a good sign that the bugfix is wrong.
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