On Fri, Jan 23, 2015 at 11:57:26PM +0100, Jean First wrote: > On Fri Jan 23 2015 23:39:21 GMT+0100 (CET), Michael Niedermayer wrote: > >On Fri, Jan 23, 2015 at 11:34:35PM +0100, Michael Niedermayer wrote: > >>On Fri, Jan 23, 2015 at 09:58:41PM +0100, Jean First wrote: > >>>if the openjpeg parameter tcp_rates is not 0 ( using the ffmpeg > >>>compression_level option ) > >>>every 2nd image per thread is badly encoded. By moving the > >>>opj_setup_encoder function from > >>>libopenjpeg_encode_init to libopenjpeg_encode_frame this can be prevented. > >>> > >>>This fixes ticket #3754. > >>how can this be reproduced ? > >note, ive tried: > >ffmpeg -i matrixbench_mpeg2.mpg -an -compression_level 1 -vframes 30 > >-threads 1 -compression_level 1 -vcodec libopenjpeg test.nut > > > >and that results in grayscale only output before as well as after > >the patch > > you can try with: > > ffmpeg -i matrixbench_mpeg2.mpg -pix_fmt xyz12 -format:v jp2 > -profile:v cinema2k -cinema_mode 2k_24 -prog_order cprl > -numresolution 6 -numlayers 1 -compression_level 2 -threads 1 > test-%05d.j2c > > and change the value for -compression_level
ok, bugfix confirmed patch applied thanks [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Let us carefully observe those good qualities wherein our enemies excel us and endeavor to excel them, by avoiding what is faulty, and imitating what is excellent in them. -- Plutarch
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