All Questions
6
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How to convert MOV (with Alpha) to MP4 (with ALpha) - using FFmpeg [closed]
I am trying to convert a MOV (with alpha channel) to WebM and Mp4 (with Alpha channel) using FFmpeg.
The WebM video is coming with the Alpha channel.
But the video is not supported in SAFARI Browser.
...
0
votes
1
answer
657
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What ffmpeg command would convert a video for iPad/iPhone in 2021?
One of the answers almost a year ago was to use the following command:
ffmpeg -i input.mp4 -vcodec libx264 -profile:v main -level 3.1 -preset medium -crf 23 -x264-params ref=4 -acodec copy -movflags +...
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1
vote
1
answer
639
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ffmpeg MOOV Atom on a ProRes file?
We have been asked by a client to create a ProRes QT file (.mov) but specifically asked to "The moov atom (movie index file) should be placed at the beginning of the file."
I have been reading around ...
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0
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0
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How to change audio bitrate to exactly 85 Kbps and preserve video setting?
When I try to change the audio bitrate for my video, also my video output is lower than it should be. Also my output video should be in MOV format.
I tried:
./ffmpeg -i myvideo.mov.mp4 -b:a 85k ...
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0
votes
1
answer
3k
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QuickTime can't play mp4 generated by ffmpeg without converting first
I've created a .mkv file from a DVD using MakeMKV that I've then converted to .mp4 using ffmpeg:
ffmpeg -i title00.mkv -c copy -c:s copy output.mp4
Now when I try opening the .mp4 file using ...
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1
vote
1
answer
935
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Trimming videos - quicktime vs. mplayer/ffmpeg stack
I have several mp4 video files (H.264, AAC) from which I want to trim a few seconds at the beginning and the end. I used Quicktime Player 7 and MPEG Streamclip for this. The generated files are a bit ...
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