[FFmpeg-trac] #4134(avcodec:open): wmalossless: fix 24bit support

[FFmpeg]

#4134: wmalossless: fix  24bit  support
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             Reporter:  ami_stuff    |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  wmalossless  |               Blocked By:
  bounty                             |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by ami_stuff):

 Replying to [comment:34 ami_stuff]:
 > Replying to [comment:11 v0lt]:
 > > http://www.mediafire.com/listen/n08r66dkgc1tul4/9_2lossless_sample.wma
 > > After 12 seconds of play in ffplay.exe noises appear.
 > > MPC-HC with WMAudio Decoder DMO plays normally.
 > > foobar2000 also plays normally.
 > >
 > > File encoded from mp3 in foobar2000+WMAEncode.exe
 (https://hydrogenaud.io/index.php/topic,90519.0.html)
 > > I chose the 16-bit, but encoder made a 24-bit. I think this is due to
 the fact that the original file was a strong clipping.
 >
 > so the only problem seems to be with this file which output is not
 bitexact (noise around 77s,210s...)

 I was able to reproduce this with my own sample, see attached files.

 g_v6.wma decodes ok, but g_v7+.wma not

 ffmpeg -i g.wav -af volume [6/7/8/9/10] g_v[6/7/8/9/10].wav

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Ticket URL: <https://trac.ffmpeg.org/ticket/4134#comment:35>
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