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

[Carl Eugen Hoyos]

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