[FFmpeg-trac] #1149(undetermined:closed): wrong channels / poor playback for 7 channel dts

FFmpeg trac at avcodec.org
Sun Apr 1 14:40:23 CEST 2012

#1149: wrong channels / poor playback for 7 channel dts
             Reporter:  fro          |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:  dts 6.1      |               Resolution:
             Blocking:               |  worksforme
Analyzed by developer:  0            |               Blocked By:
                                     |  Reproduced by developer:  0

Comment (by cehoyos):

 Replying to [comment:7 fro]:
 > ffmpeg is capable of converting multi-channel dts to multi-channel
 flac/ogg/wav and it should sound the same (esp. for the supposedly loss
 less formats) but that does not actually work.

 I believe I showed already that it works fine for wav (or don't you agree
 that WMP is the relevant testing application for wav?), it works fine for
 libvorbis (in case that is what you mean with "ogg"), and it cannot work
 for flac, because no channel layout is defined for 7-channel flac:
 http://flac.sourceforge.net/format.html (look for "channel order")
 But note that the following works as expected:
 $ ffmpeg -i lotr_5.1_768.dts out.flac
 $ ffmpeg -channel_layout 0x70f -i out.flac out.wav

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1149#comment:9>
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