[FFmpeg-devel] [PATCH 1/3] avcodec/vc1: fix condition guarding overlap filter on I picture

Carl Eugen Hoyos ceffmpeg at gmail.com
Wed Jun 20 15:03:04 EEST 2018

2018-06-20 13:10 GMT+02:00, Jerome Borsboom <jerome.borsboom at carpalis.nl>:
> The overlap filter needs to run when PQUANT is 9 or higher, irrespective
> Signed-off-by: Jerome Borsboom <jerome.borsboom at carpalis.nl>
> ---
> This patch set should fix decoding of the SA10125.vc1 test file to make it
> bit-equal to the reference decoder.

I can confirm that this patchset fixes SA10125.vc1 and a few other files.
The remaining files with issues are:
SA10135.vc1: Shows an error message ("missing cbpcy_vlc") and produces
wrong output
SA10178.vc1: 18 frames ok, last 7 frames are different

Several samples show an error that luma scaling and chroma scaling are
not supported and produce incorrect output, for example SA00048.vc1.
A few samples use pan-scan which is not supported by FFmpeg, for
example SA10164.vc1 - a warning is shown.

Thank you, Carl Eugen

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