[FFmpeg-trac] #9420(avdevice:reopened): DirectShow (dshow) audio input limited to 44.1 kHz / 16-bit

[FFmpeg]

#9420: DirectShow (dshow) audio input limited to 44.1 kHz / 16-bit
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             Reporter:  Brad Isbell  |                    Owner:  (none)
                 Type:  defect       |                   Status:  reopened
             Priority:  normal       |                Component:  avdevice
              Version:  git-master   |               Resolution:
             Keywords:  dshow        |               Blocked By:
  directshow audio                   |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Brad Isbell):

 Replying to [comment:5 Elon Musk]:
 > -ar is not option for dshow input device.
 >

 Interesting... `-ar` does have an effect, in that setting `-ar 48000`
 causes the failure with the error, "Could not set audio only options".
 This error does not occur with `-ar 44100`.  So, perhaps `-ar` is a
 defacto alias to `-sample_rate`?

 In any case, I get the exact same errors/effect with `-sample_rate`.
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Ticket URL: <https://trac.ffmpeg.org/ticket/9420#comment:8>
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