#4698: Wrong channel layout for FLAC 3/1 channels on playback
--------------------------------+-----------------------------------
Reporter: Mango | Owner:
Type: defect | Status: new
Priority: normal | Component: avcodec
Version: 2.6.3 | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
--------------------------------+-----------------------------------
Comment (by Mango):
For those who don't know what this is about, this was posted by the LAV
developer:
The tag is WAVEFORMATEXTENSIBLE_CHANNEL_MASK, which contains a hexadecimal
value which corresponds to the speaker positions listed here:
https://msdn.microsoft.com/en-
us/library/windows/desktop/dd757714(v=vs.85).aspx
It's contained within the FLAC headers as a vorbis comment, but Matroska
just shoves all the FLAC headers into Codec Private Data so you'll find it
there too.
MakeMKV adds the tag to every FLAC encode it produces, but EAC3To and
FFMPEG only add it if the layout doesn't match the defaults. The official
FLAC encoders/decoders support the tag as well, as does LAV.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4698#comment:14>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
_______________________________________________
FFmpeg-trac mailing list
[email protected]
http://avcodec.org/mailman/listinfo/ffmpeg-trac
