As your input file report a strange frame rate value 1k fps coming from the tbs and tbr value (look here for their definition) the encoder generate a different result, 16k tbn, 1k tbc (default) So by calling : ffmpeg -fflags +genpts -i 1.webm -r 24 1.mp4 You configure ffmpeg to generate new pts (a.k.a … Read more
The answer stated by @Mulvya (thank you!) works: “Add -safe 0 before -i“. Then another problem appeared with find STREAM -name ‘*’ -printf “file ‘$PWD/%p’\n” which returns the empty path as first entry. I changed this for for f in ./*.wav; do echo “file ‘$PWD/$f'”; done (see https://trac.ffmpeg.org/wiki/Concatenate) and now it seems to work. Hurray!
The following command keeps high quality on .mp3 (320 kbps), and metadata from .flac file are converted to ID3v2 format, which can be included in .mp3 files: ffmpeg -i input.flac -ab 320k -map_metadata 0 -id3v2_version 3 output.mp3
One of the maintainers for the DVDStyler project on SourceForge said this about it: FFMpeg versions after Jan 15 2015 often display this warning. It has been added to warn about possible rate control distortion, otherwise it does not cause any harm.
The command to just stream it to a new container (mp4) needed by some applications like Adobe Premiere Pro without encoding (fast) is: ffmpeg -i input.mov -qscale 0 output.mp4 Alternative as mentioned in the comments, which re-encodes with best quaility (-qscale 0): ffmpeg -i input.mov -q:v 0 output.mp4
NOTE: This solution adds the subtitles to the video as a separate optional (and user-controlled) subtitle track. ffmpeg -i infile.mp4 -i infile.srt -c copy -c:s mov_text outfile.mp4 -vf subtitles=infile.srt will not work with -c copy The order of -c copy -c:s mov_text is important. You are telling FFmpeg: Video: copy, Audio: copy, Subtitle: copy Subtitle: … Read more
Use the -y option to automatically overwrite [docs]: ffmpeg -y -i input.flac output.mp3
For recent versions of Debian/Ubuntu (Debian 9+ or Ubuntu 16.04+) install the php-dev dependency package, which will automatically install the correct version of php{x}-dev for your distribution: sudo apt install php-dev Older versions of Debian/Ubuntu: For PHP 5, it’s in the php5-dev package. sudo apt-get install php5-dev For PHP 7.x (from rahilwazir comment): sudo apt-get … Read more
The answer to the original question should not scale the video but instead fix the height not divisible by 2 error. This can be achieve using this filter: -vf “pad=ceil(iw/2)*2:ceil(ih/2)*2” Full command: ffmpeg -i frame_%05d.jpg -vcodec libx264 \ -vf “pad=ceil(iw/2)*2:ceil(ih/2)*2” -r 24 \ -y -an video.mp4 Basically, .h264 needs even dimensions so this filter will: … Read more
For Linux and macOS this can be done in one line, using parameter expansion to change the filename extension of the output file: for i in *.avi; do ffmpeg -i “$i” “${i%.*}.mp4”; done