[FFmpeg-trac] #4437(avdevice:open): AVFoundation recording has consistent intermittent frame drops
FFmpeg
trac at avcodec.org
Tue Aug 25 21:17:29 CEST 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: 0
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by LordHDL):
New test with patch:
https://www.dropbox.com/s/wbp01bcxhrrauxi/AVFTest.tar.xz?dl=0
Ignore the registration prompt (click outside or the X), it's not needed
to download.
The source chosen is a recent PC game (not emulated, low CPU & GPU
demands) so it runs at 60 FPS exactly as opposed to older standards like
59.94. Drops in smoothness are very obvious. The patch does seem to help
with the audio tempo issue I've experienced, however. It doesn't seem to
cut off or warp anymore.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4437#comment:23>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list