[FFmpeg-user] Concat Dropping Video

[VP Lists]

Hi folks. I’ve created a list of small clips in random order, each with a unique filename. This file is used for a concat input file.

In the verbose processing, I get lots of these after a few of the first files are processed:

Error while decoding stream #0:0: Invalid data found when processing input
[h264 @ 0x7fe65c062800] Invalid NAL unit 1, skipping.
[h264 @ 0x7fe65c062800] no frame!
Error while decoding stream #0:0: Invalid data found when processing input
[h264 @ 0x7fe65c078c00] No start code is found.
[h264 @ 0x7fe65c078c00] Error splitting the input into NAL units.
Error while decoding stream #0:0: Invalid data found when processing input
[h264 @ 0x7fe65c08f000] No start code is found.
[h264 @ 0x7fe65c08f000] Error splitting the input into NAL units.
Error while decoding stream #0:0: Invalid data found when processing input
[h264 @ 0x7fe65c0a5400] No start code is found.
[h264 @ 0x7fe65c0a5400] Error splitting the input into NAL units.
Error while decoding stream #0:0: Invalid data found when processing input
[h264 @ 0x7fe65c0bb800] No start code is found.
[h264 @ 0x7fe65c0bb800] Error splitting the input into NAL units.
[aac @ 0x7fe65c00d200] channel element 1.0 is not allocated
Error while decoding stream #0:1: Invalid data found when processing input
[aac @ 0x7fe65c00d200] channel element 1.4 is not allocated
Error while decoding stream #0:1: Invalid data found when processing input
[aac @ 0x7fe65c00d200] channel element 1.0 is not allocated
Error while decoding stream #0:1: Invalid data found when processing input
[aac @ 0x7fe65c00d200] channel element 1.0 is not allocated
Error while decoding stream #0:1: Invalid data found when processing input
[aac @ 0x7fe65c00d200] channel element 1.4 is not allocated
Error while decoding stream #0:1: Invalid data found when processing input
[aac @ 0x7fe65c00d200] channel element 1.0 is not allocated
Error while decoding stream #0:1: Invalid data found when processing input
[aac @ 0x7fe65c00d200] channel element 1.4 is not allocated
Error while decoding stream #0:1: Invalid data found when processing input
Error while decoding stream #0:0: Invalid data found when processing input
[h264 @ 0x7fe65c013a00] No start code is found.
[h264 @ 0x7fe65c013a00] Error splitting the input into NAL units.
Error while decoding stream #0:0: Invalid data found when processing input
[h264 @ 0x7fe65c01d200] No start code is found.
[h264 @ 0x7fe65c01d200] Error splitting the input into NAL units.
[aac @ 0x7fe65c00d200] channel element 1.0 is not allocated
Error while decoding stream #0:1: Invalid data found when processing input
Error while decoding stream #0:0: Invalid data found when processing input
[h264 @ 0x7fe65c01d800] No start code is found.

full report here: https://gist.github.com/daBee/e5faa3f8f522c2c4e5927ed82887f882

I just ran a test where the 10th clip went silent and froze, yet the QuickTime Player kept progressing. The next clip came in with no sound, and the rest of the video progressed fine with no sound until much later. Individual clips work just fine.

I’m not sure what’s happening. I was assuming it was a simple glue, but apparently it’s not happy with stuff. This section above was a grab from the middle.

Any advice appreciated how I can fix this. Cheers




_____________
Rich in Toronto @ VP






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[Carl Eugen Hoyos]

Post by VP Lists
Hi folks. I’ve created a list of small clips in random order, each with a
unique filename. This file is used for a concat input file.
In the verbose processing, I get lots of these after a few of the first
Error while decoding stream #0:0: Invalid data found when processing input

Please understand that using external resources for the console
output is neither useful nor welcome (and above extract tells us
nothing).

I have to guess but the input files are likely not compatible / have
different properties which makes them unsuitable for the concat
demuxer.

Feel free to provide samples, Carl Eugen
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