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

[Roman Puttkammer]

Never mind, found the issue. The code in avfoundation.m breaks out of one
loop only instead of two. I'll submit a patch.


On Tue, Nov 14, 2017 at 9:03 PM Roman Puttkammer <rputtkammer at gmail.com>
wrote:

> 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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