[FFmpeg-devel] [HACK] fix H.264 interlaced cropping

[Reimar Döffinger]

On Mon, Nov 01, 2010 at 02:23:05PM +0100, Michael Niedermayer wrote:
> On Sat, Oct 09, 2010 at 06:41:57PM +0200, Reimar D?ffinger wrote:
> > Hello,
> > currently for interlaced FFmpeg calls anything with more than 14 pixels
> > vertical cropping "brainfart", however that is wrong since cropping up
> > to 28 pixels is necessary to be able to encode "any" resolution for
> > interlaced (since coded height to my knowledge is a multiple of 32 -
> > well, at least or PAFF).
> > Attached patch works for me, however at least the mpegvideo part is quite
> > hacky (it's a bit silly, the H.264 decoder sets the mb_width and mb_height
> > values, but MPV_common_init overwrites them later and in the case of
> > interlacing and mb_height with the wrong one).
> > Sample is here: http://samples.mplayerhq.hu/V-codecs/h264/interlaced_crop.mp4
> 
> >  h264.c      |    2 +-
> >  h264_ps.c   |    2 +-
> >  mpegvideo.c |    2 +-
> >  utils.c     |    2 +-
> >  4 files changed, 4 insertions(+), 4 deletions(-)
> > 6294dd348b8d60ab211382c4732689b8be63be19  crop.diff
> 
> if it works ok

Applied. Unfortunately it does not cause any changes in the FATE suite,
so I intend to add that sample to it.