FFmpeg Concat Strategies

ffmpeg_concat.md

###FFmpeg Concatenation Strategies

These examples based on FFmpeg wiki page: How to concatenate (join, merge) media files

brew install ffmpeg
brew upgrade ffmpeg

---

EXAMPLE: single line concat with standard concat protocol

This example only works for files that are the same type AND that are MPG and MPEG transport streams:

ffmpeg -i "concat:input1.mpg|input2.mpg|input3.mpg" -c copy output.mpg

---

EXAMPLE: single line concat with concat demuxer

This example for files that are of the same type but is much more flexible as far as what filetype that is:

ffmpeg -f concat -i <(for f in ~/Documents/ffmpegTests/src/*.mov; do echo "file '$f'"; done) -c copy output.mov

---

EXAMPLE: Demuxer: list.txt with concat demuxer

• Demuxer pointing to a list of files.
• Create file named 'mylist.txt'
• All files to be concatenated:

file 'input1.mov'

file 'input2.mov'

file 'input3.mov'

note: can be relative path or absolute paths.

then run:

ffmpeg -f concat -i mylist.txt -c copy output

---

notes on concatenation in general

• you cannot concatenate a file built from concatenation (with standard settings)