[FFmpeg-devel] libavformat/movenc: Is packets being more than INT_MAX apart always an error?

facefunk facefunk at fcfnk.com
Thu Jul 21 15:31:37 EEST 2022


Wow! Thanks!

That really works. I had no idea we could just play with timescale like
that.

On Wed, 20 Jul 2022 at 13:41, "zhilizhao(赵志立)" <quinkblack at foxmail.com>
wrote:

>
>
> > On Jul 20, 2022, at 8:18 PM, facefunk <facefunk at fcfnk.com> wrote:
> >
> > It's commonly the case with forced subtitle tracks that samples are more
> > than INT_MAX microseconds (35m47.48s) apart. This being the case, packet
> > duration will be deemed out of range by check_pkt and the packet dts set
> to
> > an incorrect value, even if pkt->duration is actually valid.
> >
> > I had begun working out how to inject extra packets to satisfy this check
> > but I thought I would ask. Is this check necessary for mov_text packets?
>
> I think so, it’s still limited by the 32bits sample_delta in stts.
>
> On the other hand, I have an idea that a timescale like 100 can be used in
> that case, which is 2^31/100/3600 = 5965 hours.
>
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