Re: [FFmpeg-devel] [PATCH] avcodec/vc1: fix mquant calculation

2018-04-28 Thread Michael Niedermayer
On Sat, Apr 28, 2018 at 05:15:32PM +0200, Jerome Borsboom wrote: > In vc1_decode_i_blocks_adv mquant needs to be reset to its default value for > each macroblock, instead of once at the beginning of the slice. > > DQPROFILE specifies which macroblocks can have an alternative quantizer step >

[FFmpeg-devel] [PATCH] avcodec/vc1: fix mquant calculation

2018-04-28 Thread Jerome Borsboom
In vc1_decode_i_blocks_adv mquant needs to be reset to its default value for each macroblock, instead of once at the beginning of the slice. DQPROFILE specifies which macroblocks can have an alternative quantizer step size. When DQPROFILE specifies edges, the selection is applicable to the edges