same problem here: OS: Win10 Python: 3.7 pyinstaller installed by pip install pyinstaller fix by (same solution with above, by no need download): pip uninstall pyinstaller pip install https://github.com/pyinstaller/pyinstaller/archive/develop.zip
I’ve seen this library: ffmpeg-sharp a wrapper library over the FFmpeg multimedia suite that provides easy to use wrappers for use in C#.
Update (as I can’t delete the accepted answer): the proper solution is to implement a custom demuxer, similar to the concat one. There’s currently no other clean way. You have to get your hands dirty and code! Below is an ugly hack. This is a very bad way to do it, just don’t! The solution … Read more
See https://ffmpeg.org/ffmpeg.html#Main-options -stdin – Enable interaction on standard input. On by default unless a pipe is detected. -nostdin – To explicitly disable console interactions. Without -y this will cause ffmpeg to error out if the target file exists. -y – To overwrite the output file
To take every 15th frame, use the select filter ffmpeg -i in.mp4 -vf select=”not(mod(n\,15))”,setpts=N/FRAME_RATE/TB out.mp4 Another method is to use the framestep filter ffmpeg -i in.mp4 -vf framestep=15,setpts=N/FRAME_RATE/TB out.mp4
You could first use ffmpeg to detect intervals of silence, like this ffmpeg -i “input.mov” -af silencedetect=noise=-30dB:d=0.5 -f null – 2> vol.txt This will produce console output with readings that look like this: [silencedetect @ 00000000004b02c0] silence_start: -0.0306667 [silencedetect @ 00000000004b02c0] silence_end: 1.42767 | silence_duration: 1.45833 [silencedetect @ 00000000004b02c0] silence_start: 2.21583 [silencedetect @ 00000000004b02c0] silence_end: … Read more
You can use this command. ffmpeg -f lavfi -i anullsrc=r=44100:cl=mono -t <seconds> -q:a 9 -acodec libmp3lame out.mp3 Change <seconds> to a number indicating the number of seconds of silence you require (for example, 60 will create a minute).
Here it is: ffmpeg -i input.m2ts -c:v copy -c:a aac -strict experimental -b:a 128k output.mp4 This will only copy the video stream without re-encoding and encode the audio track to AAC VBR stereo, it requires a recent FFmpeg version.
I fixed by uninstalling both mbedtls and librist and then reinstalling ffmpeg as described here brew uninstall librist –ignore-dependencies brew uninstall mbedtls –ignore-dependencies brew reinstall ffmpeg