[FFmpeg-trac] #4437(avdevice:open): AVFoundation recording has consistent intermittent frame drops

FFmpeg trac at avcodec.org
Sun Nov 22 17:35:48 CET 2015


#4437: AVFoundation recording has consistent intermittent frame drops
-------------------------------------+-------------------------------------
             Reporter:  LordHDL      |                    Owner:  mateo
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avdevice
              Version:  git-master   |               Resolution:
             Keywords:               |               Blocked By:
  avfoundation bounty                |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by thilo.borgmann):

 Did you try to use -audio_format_index N to chose a 49kHz format? Does
 this work for you?

 Fro me, FFmpeg choses the first format available if no index is given
 which corresponds to 192kHz for the SoundFlower device. It sounds like
 FFmpeg resets the format within the SoundFlower audio configuration for
 you?

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Ticket URL: <https://trac.ffmpeg.org/ticket/4437#comment:34>
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