Hi, Just missed you on IRC :-/
> Op 30 jan. 2015, om 12:59 heeft Stefano Sabatini <stefa...@gmail.com> het
> volgende geschreven:
>
> On date Friday 2015-01-30 11:01:16 +0100, Matthijs Tempels encoded:
>> Hi Stefano,
>>
>> I did look at the strftime function, but strftime does not provide
>> milliseconds..
>
> Yeah, we need gettimeofday for that.
>
only what i read gettimeofday is deprecated.. but clock_gettime() is not (yet?)
implemented in all platforms :-) the cool world of software development..
Anyway, both work for my purpose..
>> What i need is the exact time (to the millisecond) of the first frame of the
>> file.. (so the date from the strftime might even be a few ms of, but we
>> could compensate for that)
>> a seconds-resolution is just not acurate enough..
>>
>
>> So the best thing for me would be that ffmpeg puts the system time to the ms
>> in the frame metadata somewhere, but i'm not sure if that is possible..
>
> You could add an option to set that in the format metadata, by hacking
> the segment.c file.
I tried looking into that too.. but my knowledge of c++ is rusty to say the
least.. the filename-thing was the easiest, yet not the most univeral thing i
could think of realy quick..
>
> My problem with such approach is that it is not generic
> enough. Ideally we should be able to setup this in a generic
> way. Extending the strftime() template system would be a
> probably the best option.
agreed!
>
> The simpler approach I can image is to add another option like
> -epoch_micros which replaces a %Nd pattern with a number of
> microseconds since epoch (you can extract and parse them later).
> At some point we would need something more generic, supporting things
> like:
>
> %{strftime:%Y-%m-%d_%H:%M:S}-%{gettimeofday:%m}
>
> similar to what is done in drawtext (see text expansion).
Yes i found that to make time captions in a video.. it would be great to have
the same mechanism work for the filenames and media titles etc etc
> --
> FFmpeg = Free and Faithful Mournful Problematic Exuberant Governor
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
