[FFmpeg-user] Size of 10-bit 4:2:2 video streams?

Olivier Bruchez olivier.bruchez at epfl.ch
Mon Oct 3 10:40:10 EEST 2022

On 21.09.22 19:06, Carl Zwanzig wrote:

> On 9/21/2022 12:59 AM, Paul B Mahol wrote:
>> It could be that index for frames in AVI is not listing all entries.
>> Hard to guess.
>> You could inspect file in some AVI file format analyzer.
>> If there is such thing available.
> In theory, avicodec will do it but it's quite old, same for vitrualdubmod
> and gspot (http://www.headbands.com/gspot/), but then AVI format is also
> quite old. I have used gspot before and it was useful, haven't tried it for
> this purpose.
> https://greshka.net/avicheck/ has some interesting suggestions, which
> eventually land on.... "ffmpeg -v 5 -i FILE.avi -f null -" (decode to null
> output, turn up the error reporting.
> I'll echo Paul's thoughts that the AVI is somewhat corrupt, at least the
> metadata is badly wrong. It's possible that by either poking the metadata to
> "correctness" or ignoring a lot of errors, usable video could be pulled out.

Thanks Marc, Paul, and onemda!

I haven't had the time to do it, but I'll try those old tools. It they 
don't work, I'll even try to write some code to extract the missing 
frames. There must be a way to read them back!



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