Convert video to exactly the same stream type of other video in ffmpeg -

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maybe silly question, didn't manage find clear answer anywhere.

i need use ffmpeg convert given video same format video has, including bitrate, video , audio codecs... everything. goal concat both videos single file, independently of original formats.

is there easy way or have build complex command line input specifying parameters?

the concat demuxer not enough... maybe filter_complex?

thanks , sorry bother.


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