[FFmpeg-trac] #2504(avdevice:new): Audio glitches and distortion when recording alsa

[FFmpeg]

#2504: Audio glitches and distortion when recording alsa
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             Reporter:  MrNice      |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  important   |                Component:  avdevice
              Version:  git-master  |               Resolution:
             Keywords:  regression  |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by cehoyos):

 First, to make sure we do not misunderstand each other:
 * 743b389 works well
 * 3cac2f1 sounds bad
 * If you remove AVFMT_FLAG_NONBLOCK from a current version, it sounds
 better than without removing it but worse than 743b389
 (If one of above statements is not correct, then please correct me and
 ignore the following.)

 If you are interested in fixing this issue, I suggest you do a git bisect
 between 3cac2f1 and current git head, but this time removing (out-
 commenting) AVFMT_FLAG_NONBLOCK before typing "configure ..." for each
 test (you have to undo the changes before you type "git bisect good/bad")

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2504#comment:104>
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