[FFmpeg-user] mp4 concatenation (muxer) problems -- invalid output?

Carl Eugen Hoyos ceffmpeg at gmail.com
Tue Feb 21 02:57:12 EET 2017

2017-02-21 1:54 GMT+01:00 John Hawkinson <jhawk at mit.edu>:

>> The "video" was encoded by a hardware encoder, the "held frame" by
>> x264, you cannot concatenate them.
> When you say "cannot concatenate" do you mean with "-c copy" or not at all?

Didn't you try without -c copy?

You cannot use the concat demuxer if the streams are not "compatible".

Carl Eugen

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