Hendrik Leppkes <h.lepp...@gmail.com> skrev: (11 mars 2016 09:18:43 CET) >On Fri, Mar 11, 2016 at 5:10 AM, Mats Peterson ><matsp888-at-yahoo....@ffmpeg.org> wrote: >> >> Regarding the biClrUsed field, I'm setting it to 1 << >> bits_per_coded_sample if palettized video, since setting it to 0 is >> another case where it won't work with Windows Media Player and >Microsoft >> Video 1 in 8 bpp mode. >> > >This is not "spec compliance" then, because the spec specifically says >that when its 0, it should be assumed equal to 2^biBitCount, which is >the same value you are explicitly writing now. >Its a redundant value to work around the inability of some players, >not spec compliance - the existing value is perfectly compliant. >Please clarify as much in any potential commit message. > >- Hendrik >_______________________________________________ >ffmpeg-devel mailing list >ffmpeg-devel@ffmpeg.org >http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
I know all that, Hendrik, but the fact is Windows Media Player will not interpret 0 as 256 either for Microsoft Video 1 (CRAM) or RLE4/8. And the way I interpret the specs is that using 0 is only relevant to raw, uncompressed video. Mats -- Mats Peterson http://matsp888.no-ip.org/~mats/ _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
