[FFmpeg-devel] [PATCH v2] lavfi/drawtext: Add localtime_ms for millisecond precision

[Thilo Borgmann]

Am 29.12.21 um 12:46 schrieb Nicolas George:
> "zhilizhao(赵志立)" (12021-12-29):
>> How about add a restriction like this:
>>
>> if (format.endsWith(“%S"))
>>     enable the feature
>> else
>>     warning message
>>
>> It’s a useful feature, it shouldn't create unexpected results, but
>> doesn’t need to support every use case.
> 
> I would not oppose it, but I find it inelegant, especially because it
> requires a different expansion function, localtime_ms instead of
> localtime.
> 
> What about this: with the original function "localtime", if the format
> ends in "%3N", then append the millisecond. It can later be expanded to
> support %xN at any place in the format for any value of x.

I think best will be to scan the format string for %S and extend it there with .ms part before expanding the rest of it, not? Shouldn't be too expensive for the filter.

Just need to find time to actually implement it. 

Thanks,
Thilo