[FFmpeg-user] filter pipeline 'PTS' -- int64_t?

[Paul B Mahol]

On Tue, Mar 2, 2021 at 8:59 PM Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:

> Am Di., 2. März 2021 um 01:47 Uhr schrieb Mark Filipak (ffmpeg)
> <markfilipak at bog.us>:
> >
> > The ffmpeg filter pipeline assigns a 'PTS' to each frame,
> > frame by frame.
>
> This may not be completely unreasonable but some
> comments are still necessary:
> The sentence sounds to me as if the the filter pipeline always
> assigns timestamps to frames, but this is neither true (many
> filters do not care about timestamps and you do not have to
> insert a filter which does) nor does it make the filter pipeline
> special: Timestamps often come from the demuxer and / or
> the decoder and may or may not change in the filterchain
> (and - as I believe you realized by now - because of the
> chosen output format; and also the chosen encoder - for
> which you did not post a question yet).
>
> Frames may not have a timestamp assigned - you posted
> the relevant part of the documentation.
>
> Concerning some of your other comments:
>
> The timestamps in MPEG streams may be negative.
>
> There is no AVFrac in the (current) codebase.
>
>
Funny how he look at ultra old svn code dump, good luck with that,

How he even managed to find links to svn stuff ....




> Carl Eugen
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