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