#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            |
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Changes (by thilo.borgmann):

 * reproduced:  0 => 1


Comment:

 I can reproduce it. There are missing frames and duplicated frames during
 my testing. However, I'm still not sure what causes these drops.

 If I understand it correctly, the patch sent does not fix the issue even
 partially. I will have a look at it and review it on the ML asap. And I
 will look at #4463 again and see what this patch achieves there.

 So, LordHDL, you possess the ScreenFlow software and it captures the very
 same resolution at the very same framerate with unique frames?
 Can you link to another software capable of that, maybe one that's open-
 source (or at least free)?

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Ticket URL: <https://trac.ffmpeg.org/ticket/4437#comment:26>
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