[FFmpeg-devel] [PATCH 2/5] avcodec/vc1: fix mquant calculation for interlace field pictures

Carl Eugen Hoyos ceffmpeg at gmail.com
Sun May 20 10:51:40 EEST 2018

2018-05-20 0:01 GMT+02:00, Michael Niedermayer <michael at niedermayer.cc>:
> On Fri, May 18, 2018 at 05:06:23PM +0200, Jerome Borsboom wrote:
>> For interlace field pictures s->mb_height indicates the height of the
>> full
>> picture in MBs, i.e. the two fields combined. A single field is half this
>> size. When calculating mquant for interlace field pictures, the bottom
>> edge
>> is the last MB row of the field.
>> Signed-off-by: Jerome Borsboom <jerome.borsboom at carpalis.nl>
>> ---
>>  libavcodec/vc1_block.c | 3 ++-
>>  1 file changed, 2 insertions(+), 1 deletion(-)
> for patch 1 you list a file that it improves.

The file - afaict - is related to the patchset as a whole.
The current version of the patchset does not fix the
file though, so I believe we should wait for a new
version of the patchset.

The sample is >20MB, most of the reference files are
very small, so perhaps we can avoid using this one.

Carl Eugen

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