[FFmpeg-user] I found the bugs

[Paul B Mahol]

On Mon, Jun 17, 2024 at 3:16 AM Mark Filipak <markfilipak.imdb at gmail.com>
wrote:

> To expand on my idea:
>
> The video is this:
> I P B B P B B P B B I P B B..
> I want to change it to this:
> I B B P B B P B B P I B B P..
>

If this is what I think it is, your are wasting your time.

Its nonsense to change order of encoded frames, no manipulation of clock
can fix that.

When doing concat you can not concat in middle of group of frames.

Each beginning and end frame must be the key-frame.



>
> To do that, I reckon I need to,
> 1, move the packets that contain P-frames,
> 2, insert revised 'program_clock_reference_base's and
> 'program_clock_reference_extension's into each
> of them to account for the new order, and
> 3, do some packet fixup (maybe).
>
> Is that possible with FFmpeg?
>
> --Mark.
>
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