ffmpeg

ffprobe xxx.opus

Convert format

• opus to wav

ffmpeg -i input.opus output.wav

ffmpeg -i input.opus -acodec pcm_s16le -ac 1 -ar 16000 output.wav

# compress mov
# a larger value for crf -> a smaller file
ffmpeg -i ./kokoro-1.0-tts-engine-apk-demo.mov -c:v libx264 -c:a copy -crf 25 newmovie.mov

• Extract part of a file

# extract 30 seconds starting at offset 1 minute
ffmpeg -i input.opus -ss 60 -t 30 output.wav
# or use HH:MM:SS format
ffmpeg -i input.opus -ss 0:01:00 -t 0:00:30 output.wav

ffmpeg -ss 00:00:16 -to 00:00:30 -i ./abc.mov -c copy part.mp4

References

See https://gist.github.com/whizkydee/804d7e290f46c73f55a84db8a8936d74