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 <[email protected]> wrote: > 2017-11-14 4:54 GMT+01:00 Roman Puttkammer <[email protected]>: > > > ffmpeg version 3.4 Copyright (c) 2000-2017 the FFmpeg developers > > Please test current FFmpeg git head. > > Carl Eugen > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
