[FFmpeg-user] recording @ 120fps on mac fails with 'activeVideoMinFrameDuration not supported'

[Roman Puttkammer]

Carl - thanks, I tried that now. Same thing happens.

I found this link that seems to describe a similar problem,
https://github.com/piemonte/PBJVision/issues/127, but that's for the iOS;
that said, could it be also related to the order in which the format/frame
rate or other properties are set?

I'll look at the code but I'm a newbie with ffmpeg and video capture.
Any/all pointers really appreciated.


### Version - compiled as per
https://trac.ffmpeg.org/wiki/CompilationGuide/macOS but without libass
###
Romans-MBP:ffmpeg putt$ ffmpeg/ffmpeg -h
ffmpeg version N-89047-g54f8ac199f Copyright (c) 2000-2017 the FFmpeg
developers
  built with Apple LLVM version 9.0.0 (clang-900.0.38)
  configuration: --prefix=/usr/local --enable-gpl --enable-nonfree
--enable-libfdk-aac --enable-libfreetype --enable-libmp3lame
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264
--enable-libx265 --enable-libopus --enable-libxvid
  libavutil      56.  0.100 / 56.  0.100
  libavcodec     58.  3.101 / 58.  3.101
  libavformat    58.  2.100 / 58.  2.100
  libavdevice    58.  0.100 / 58.  0.100
  libavfilter     7.  0.101 /  7.  0.101
  libswscale      5.  0.101 /  5.  0.101
  libswresample   3.  0.101 /  3.  0.101
  libpostproc    55.  0.100 / 55.  0.100

### FAIL: framerate 120.101366
###
Romans-MBP:ffmpeg putt$ ffmpeg/ffmpeg -f avfoundation -video_size 320x240
-framerate 120.101366 -pixel_format uyvy422 -i "0:none" out.avi
ffmpeg version N-89047-g54f8ac199f Copyright (c) 2000-2017 the FFmpeg
developers
  built with Apple LLVM version 9.0.0 (clang-900.0.38)
  configuration: --prefix=/usr/local --enable-gpl --enable-nonfree
--enable-libfdk-aac --enable-libfreetype --enable-libmp3lame
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264
--enable-libx265 --enable-libopus --enable-libxvid
  libavutil      56.  0.100 / 56.  0.100
  libavcodec     58.  3.101 / 58.  3.101
  libavformat    58.  2.100 / 58.  2.100
  libavdevice    58.  0.100 / 58.  0.100
  libavfilter     7.  0.101 /  7.  0.101
  libswscale      5.  0.101 /  5.  0.101
  libswresample   3.  0.101 /  3.  0.101
  libpostproc    55.  0.100 / 55.  0.100
[avfoundation @ 0x7fc399003400] An error occurred: The
activeVideoMinFrameDuration passed is not supported by the device.  Use
-activeFormat.videoSupportedFrameRateRanges to discover valid
ranges.0:none: Input/output error

### Fail: framerate 120
###
Romans-MBP:ffmpeg putt$ ffmpeg/ffmpeg -f avfoundation -video_size 320x240
-framerate 120 -pixel_format uyvy422 -i "0:none" out.avi
ffmpeg version N-89047-g54f8ac199f Copyright (c) 2000-2017 the FFmpeg
developers
  built with Apple LLVM version 9.0.0 (clang-900.0.38)
  configuration: --prefix=/usr/local --enable-gpl --enable-nonfree
--enable-libfdk-aac --enable-libfreetype --enable-libmp3lame
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264
--enable-libx265 --enable-libopus --enable-libxvid
  libavutil      56.  0.100 / 56.  0.100
  libavcodec     58.  3.101 / 58.  3.101
  libavformat    58.  2.100 / 58.  2.100
  libavdevice    58.  0.100 / 58.  0.100
  libavfilter     7.  0.101 /  7.  0.101
  libswscale      5.  0.101 /  5.  0.101
  libswresample   3.  0.101 /  3.  0.101
  libpostproc    55.  0.100 / 55.  0.100
[avfoundation @ 0x7fd85b803400] Selected framerate (120.000000) is not
supported by the device
[avfoundation @ 0x7fd85b803400] Supported modes:
[avfoundation @ 0x7fd85b803400]   320x240@[120.101366 120.101366]fps
[avfoundation @ 0x7fd85b803400]   640x480@[120.101366 120.101366]fps
[avfoundation @ 0x7fd85b803400]   800x600@[60.000240 60.000240]fps
[avfoundation @ 0x7fd85b803400]   1024x768@[30.000030 30.000030]fps
[avfoundation @ 0x7fd85b803400]   1280x720@[60.000240 60.000240]fps
[avfoundation @ 0x7fd85b803400]   1280x1024@[30.000030 30.000030]fps
[avfoundation @ 0x7fd85b803400]   1920x1080@[30.000030 30.000030]fps
[avfoundation @ 0x7fd85b803400]   320x240@[30.000030 30.000030]fps
[avfoundation @ 0x7fd85b803400]   640x480@[30.000030 30.000030]fps
[avfoundation @ 0x7fd85b803400]   800x600@[20.000000 20.000000]fps
[avfoundation @ 0x7fd85b803400]   1024x768@[6.000002 6.000002]fps
0:none: Input/output error


On Tue, Nov 14, 2017 at 12:11 PM Carl Eugen Hoyos <ceffmpeg at gmail.com>
wrote:

> 2017-11-14 4:54 GMT+01:00 Roman Puttkammer <rputtkammer at gmail.com>:
>
> > ffmpeg version 3.4 Copyright (c) 2000-2017 the FFmpeg developers
>
> Please test current FFmpeg git head.
>
> Carl Eugen
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