The -safe 0 above is not required if the paths are relative. Then you can stream copy or re-encode your files:įfmpeg -f concat -safe 0 -i mylist.txt -c copy output.wav Note that these can be either relative or absolute paths. All files must have the same streams (same codecs, same time base, etc.) but can be wrapped in different container formats.Ĭreate a file mylist.txt with all the files you want to have concatenated in the following form (lines starting with a # are ignored): This demuxer reads a list of files and other directives from a text file and demuxes them one after the other, as if all their packets had been muxed together. You can read about the concat demuxer in the documentation. The demuxer is more flexible – it requires the same codecs, but different container formats can be used and it can be used with any container formats, while the protocol only works with a select few containers. There are two methods within ffmpeg that can be used to concatenate files of the same type:

If you have media with different codecs you can concatenate them as described in ' Concatenation of files with different codecs' below. If you have media files with exactly the same codec and codec parameters you can concatenate them as described in ' Concatenation of files with same codecs'.

Concatenation of files with different codecs.Concatenation of files with same codecs.

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