On Mon, Feb 15, 2021 at 2:19 AM Phil Rhodes via ffmpeg-user < ffmpeg-user@ffmpeg.org> wrote:
> How does all this interact with files from cameras with very stable > timing, such as broadcast and cinema cameras? > Is there not a risk of long-term rounding errors? > PTS and TB (timebase) are used together. > P > On Monday, 15 February 2021, 01:13:37 GMT, Paul B Mahol < > one...@gmail.com> wrote: > > On Mon, Feb 15, 2021 at 1:46 AM Mark Filipak (ffmpeg) <markfili...@bog.us > > > wrote: > > > On 02/14/2021 07:34 PM, Paul B Mahol wrote: > > > On Mon, Feb 15, 2021 at 12:50 AM Mark Filipak (ffmpeg) < > > markfili...@bog.us> > > > wrote: > > > > > >> Disclosure: Everything that follows may be wrong. > > >> > > >> I reckon that, except for a few filters, the important metric is PTS, > > not > > >> the frame #s assigned at a > > >> filter's input node nor its wall-clock arrival time at a filter's > input > > >> node. For example, > > >> 'interleave' performs frame interleaves based on the PTSs of incoming > > >> frames -- at least, that's > > >> what I think. > > >> > > >> Am I correct? > > >> > > >> If so, wouldn't it be helpful if filter documentation included how it > > >> generates PTSs? > > >> > > > > > > PTS are not generated. > > > > ffmpeg -i SOURCE -vf telecine TARGET > > > > What are the PTSs of the first 5 frames at the output of the filter? > > > > > Interpolated by very complex formula. > > > > -- > > Any journey, no matter how long, is just a series of small steps. > > "Government is the problem!" -- 1982 and onward. > > "_______ is the enemy of the people!" -- 2016 and onward. > > "You have to fight like hell or you're not going to have a country!" -- > > Jan 6, 2021. > > It isn't the distance that's important, it's the direction. > > _______________________________________________ > > ffmpeg-user mailing list > > ffmpeg-user@ffmpeg.org > > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > > To unsubscribe, visit link above, or email > > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".