I'm trying to join together four Y4M files.
I tried using both of the ffmpeg methods on this page:
Both times, I get this error:
How can I join them using my Mac please? Thanks in advance.Code:[yuv4mpegpipe @ 0x7fce28809400] ERROR: Codec not supported. Could not write header for output file #0 (incorrect codec parameters ?): Invalid data found when processing input
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Using "cat" to crudely join the files doesn't work either. Only the first clip plays.
A full command line example of your first try would have been useful. I guess explicitly stating formats (yuv4mpegpipe) may have helped. But the position of parameters is important.
PS: Tested and failed as well, so far...
Solution: omit the "-c copy"; concatenating raw formats does not need codec actions to be specified, they are not supported for such formats.
ffmpeg -f concat -i list.txt -f yuv4mpegpipe out.y4m
Last edited by LigH.de; 20th Nov 2020 at 02:43.
Thanks. I'll try that next time.