[FFmpeg-trac] #1478(FFmpeg:new): PulseAudio input performance regression

[FFmpeg]

#1478: PulseAudio input performance regression
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             Reporter:  GreatEmerald  |                    Owner:
                 Type:  defect        |                   Status:  new
             Priority:  important     |                Component:  FFmpeg
              Version:  git-master    |               Resolution:
             Keywords:  regression    |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
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Comment (by GreatEmerald):

 All right, did some more testing. The latest git revision does indeed fix
 the issue on my machine. Since I wanted to know what fixed it, I did a
 "reverse bisect" of sorts, and I was pointed to the revision
 3630a075132a8d059b16f92a291e523c1bc7ebc9 as the first one to compile and
 run correctly. Looking at its contents, it would appear that the
 particular commit that did the trick was
 5db5169e46a5f1676aafb82ec8c3f5dc6fb6bb6d (avconv: multithreaded demuxing.)
 Though I'd imagine that it would be more of a workaround, as it could
 still be a problem on single-core machines or so. I think I'll run another
 test on another, slower machine with the same audio chip and see if it's
 also fixed there.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1478#comment:3>
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