Bug#738599: fails to decode H264: "Different bit depth between chroma and luma is not implemented"

[Sebastian Ramacher]

On 2014-02-10 21:38:25, Antoine Beaupré wrote:
> Package: libavcodec54
> Version: 6:9.10-2
> Severity: important
> 
> libav can't seem to play some H264 videos. Here's an example:
> 
> anarcat at marcos:~$ avplay "/srv/video/films/Documentary/The Power of Nightmares/The_Power_Of_Nightmares-Part_1.mkv"
> avplay version 9.10-6:9.10-2, Copyright (c) 2003-2013 the Libav developers
>   built on Jan  3 2014 23:27:39 with gcc 4.8 (Debian 4.8.2-11)
> [h264 @ 0x7f306c004960] Overread VUI by 8 bits
> [h264 @ 0x7f306c004960] Different bit depth between chroma and luma is not implemented. Update your Libav version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
> [h264 @ 0x7f306c004960] If you want to help, upload a sample of this file to ftp://upload.libav.org/incoming/ and contact the libav-devel mailing list.
> [h264 @ 0x7f306c004960] Decoding sps 0 from avcC failed
> [h264 @ 0x7f306c004960] Overread VUI by 8 bits
> [h264 @ 0x7f306c004960] Different bit depth between chroma and luma is not implemented. Update your Libav version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
> [h264 @ 0x7f306c004960] If you want to help, upload a sample of this file to ftp://upload.libav.org/incoming/ and contact the libav-devel mailing list.
> [h264 @ 0x7f306c004960] Decoding sps 0 from avcC failed
> Input #0, matroska,webm, from '/srv/video/films/Documentary/The Power of Nightmares/The_Power_Of_Nightmares-Part_1.mkv':
>   Duration: 00:59:13.04, start: 0.000000, bitrate: N/A
>     Stream #0.0(eng): Video: h264, 704x480, PAR 182:205 DAR 4004:3075, 29.97 fps, 29.97 tbr, 1k tbn (default)
>     Stream #0.1: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s (default)
> [h264 @ 0x7f306c0f8f60] Overread VUI by 8 bits
> [h264 @ 0x7f306c0f8f60] Different bit depth between chroma and luma is not implemented. Update your Libav version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
> [h264 @ 0x7f306c0f8f60] If you want to help, upload a sample of this file to ftp://upload.libav.org/incoming/ and contact the libav-devel mailing list.
> [h264 @ 0x7f306c0f8f60] Decoding sps 0 from avcC failed

Looking at the h264 code from the version in experimental, support for
different chroma and luma bit depths has not been implemented in libav
10 - but I might just be reading the code wrong.

Anyway, could you please test if the issues persists with libav 10 from
experimental?

Regards
-- 
Sebastian Ramacher
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