ffmpeg mp3 conversion failed [closed]
Try this, it worked for me. sudo apt-get install ffmpeg libavcodec-extra-52 thanks to ffmpeg: convert audio-only flv to swf
Try this, it worked for me. sudo apt-get install ffmpeg libavcodec-extra-52 thanks to ffmpeg: convert audio-only flv to swf
Your present command doesn’t specify any input, so use phantomjs runner.js | ffmpeg -f image2pipe -i pipe:.png -c:a copy -c:v libx264 -f flv rtmp://localhost/mystream There’s no audio input, so setting an audio codec is pointless. If your output needs an audio stream, use phantomjs runner.js | ffmpeg -f image2pipe -i pipe:.png -f lavfi -i anullsrc … Read more
VOB format is a subset of mpeg, so you should be able to combine the VOBs you want to read in just as you would mpeg data: by concatenating them together. cat first.VOB second.VOB third.VOB | ffmpeg -i – outfile.mp4 Hoisting Matt Gallagher’s comment to increase longevity/visibility: Newer versions of ffmpeg support concatenation as an … Read more
Yes, this is possible. It is normal that you can’t open that raw video file since it is just raw data in one giant file, without any headers. So Adobe Premiere doesn’t know what the size is, what framerate ect. First make sure you downloaded the FFmpeg command line tool. Then after installing you can … Read more
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
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
This answer was posted (under the CC BY-SA 4.0 license) as a comment by Gyan to the question Convert videos from .264 to .265 (HEVC) with ffmpeg. Run this command for x265 conversion: ffmpeg -i input.mp4 -c:v libx265 -vtag hvc1 output.mp4