> On 2 May 2021, at 11:02, Marton Balint <[email protected]> wrote: > > > > On Sun, 2 May 2021, Bouke wrote: > >> From the manual: >> 'timestamp_align >> Capture start time alignment in seconds. If set to nonzero, input frames are >> dropped till the system timestamp aligns with configured value >> >> Ok, when I put -timestamp_align in my command, it does wait ‘a bit’ before >> starting capture. >> That’s what I’m after, but i have no clue how long it waits. It’s not a >> ‘wait X seconds’ for sure. > > It waits until UTC modulo timestamp_align becomes 0. So for 60 it waits until > a full minute boundary is reached.
Ok, but what is ' UTC modulo’ ? If i enter 0, it starts capturing immediately, higher values do give ‘a’ delay, but it’s not predictable at all. (It’s off by a random value, up to 30% difference from what I expect…) Bouke > > Regards, > Marton > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
