Justin Ruggles justin.rugg...@gmail.com added the comment:
I don't think anything is wrong here. You're getting weird audio output
because you're using --sign=unsigned. In unsigned audio, 0 is full
negative amplitude.
flac -d foo.flac -o foo_flac.wav
ffmpeg -i foo.flac foo_lavc.wav
cmp
Deiz ffm...@pwnly.com added the comment:
I didn't realize --unsigned was what was causing the output issue (As it turns
out, that's dmix mixing the 0 dB sample with other output.) but that's not the
underlying issue.
I have a copyrighted file (which I'm not going to upload) which is prepended
Justin Ruggles justin.rugg...@gmail.com added the comment:
Deiz wrote:
Deiz ffm...@pwnly.com added the comment:
I didn't realize --unsigned was what was causing the output issue (As it turns
out, that's dmix mixing the 0 dB sample with other output.) but that's not the
underlying issue.
Justin Ruggles justin.rugg...@gmail.com added the comment:
needs more info. as Carl said, please supply complete output of the ffmpeg
command that leads to this failure.
--
substatus: - needs_more_info
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FFmpeg issue tracker
Deiz ffm...@pwnly.com added the comment:
I'm not 100% certain that ffplay is failing to play the track, as it does not
echo pertinent information to stdout, even with -debug. mplayer and VLC,
however, are both able to play WAVs generated by separately decoding the FLAC
with ffmpeg or libflac,
Michael Niedermayer michae...@gmx.at added the comment:
Regression fixed in r20756.
[...]
--
status: open - closed
substatus: reproduced - fixed
_
FFmpeg issue tracker iss...@roundup.ffmpeg.org
New submission from ami_stuff ami_st...@o2.pl:
This is like IFF 8SVX, but 16bit (libsndfile support it).
This is the new 16 bit IFF sound format on Amiga. From the basic
concept, it is a 8SVX file, but the BODY chunk consists of 16 bit.
Not (yet?) supported are compression, multi octave,
Justin Ruggles justin.rugg...@gmail.com added the comment:
Well, it's hard to tell anything without a sample. Can you at least
attach the foo.ana file output from flac -a foo.flac and the output of
metaflac --list foo.flac?
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FFmpeg issue
Deiz ffm...@pwnly.com added the comment:
metaflac --list foo.flac:
METADATA block #0
type: 0 (STREAMINFO)
is last: false
length: 34
minimum blocksize: 4096 samples
maximum blocksize: 4096 samples
minimum framesize: 14 bytes
maximum framesize: 16 bytes
sample_rate: 44100 Hz
Justin Ruggles justin.rugg...@gmail.com added the comment:
That foo.ana file indicates that your source is all silence. So I
recreated the file and could not reproduce any issues with ffmpeg or
ffplay from SVN.
Update to latest SVN and see if you can reproduce any issues with ffmpeg
or
Deiz ffm...@pwnly.com added the comment:
Playing works with latest ffplay/ffmpeg from SVN, seek does not (but seek fails
with normal files, too, so it's outside the scope of this report).
With ffmpeg compiled from latest SVN, other applications still fail to play the
file; I assume the
Justin Ruggles justin.rugg...@gmail.com added the comment:
there is already an open issue about flac seeking.
closing this issue.
--
status: open - closed
substatus: open - invalid
_
FFmpeg issue tracker iss...@roundup.ffmpeg.org
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