Re: [FFmpeg-devel] [PATCH 1/9] dnxhdenc: fix scan used for bitstream generation

2015-10-12 Thread Christophe Gisquet
Hi, 2015-10-12 0:09 GMT+02:00 Michael Niedermayer : > this seems to cause artifacts on the red/cyan edge in > ./ffmpeg -f lavfi -i testsrc=s=1920x1080 -vframes 1 -pix_fmt yuv422p -vcodec > dnxhd -flags +ildct -vb 185M test.mov ok, ff_convert_matrix permutes the table, so the 8 bit case should us

Re: [FFmpeg-devel] [PATCH 1/9] dnxhdenc: fix scan used for bitstream generation

2015-10-11 Thread Michael Niedermayer
On Sun, Oct 11, 2015 at 11:07:25PM +0200, Christophe Gisquet wrote: > Hi, > > 2015-10-11 18:20 GMT+02:00 Michael Niedermayer : > > On Sun, Oct 11, 2015 at 04:06:05PM +0200, Christophe Gisquet wrote: > >> The functions related to bitstream reading must use the natural zigzag > >> order, and not the

Re: [FFmpeg-devel] [PATCH 1/9] dnxhdenc: fix scan used for bitstream generation

2015-10-11 Thread Christophe Gisquet
Hi, 2015-10-11 18:20 GMT+02:00 Michael Niedermayer : > On Sun, Oct 11, 2015 at 04:06:05PM +0200, Christophe Gisquet wrote: >> The functions related to bitstream reading must use the natural zigzag >> order, and not the one permuted for use in the iDCT. This currently >> results in bitstreams with

Re: [FFmpeg-devel] [PATCH 1/9] dnxhdenc: fix scan used for bitstream generation

2015-10-11 Thread Michael Niedermayer
On Sun, Oct 11, 2015 at 04:06:05PM +0200, Christophe Gisquet wrote: > The functions related to bitstream reading must use the natural zigzag > order, and not the one permuted for use in the iDCT. This currently > results in bitstreams with 2 issues: > - AC coefficients are encoded in an unexpected