[FFmpeg-user] h264 frame rate detection
Jan Pohanka
xhpohanka at gmail.com
Mon Apr 16 07:06:19 CEST 2012
Hello,
> I set the fps to 5 (which is the rate I get the images from
>> cmos sensor) by setting VUI params num_units_in_tick = 1000 and
>> time_scale = 5000.
>
> You are writing the wrong value.
>
> In h264, num_units_in_tick/time_scale is the duration of one FIELD, not
> the duration of one FRAME.
>
I understand, but as my video is in progressive format I expect that field
rate should be equal to frame rate. As far as I know there is no other way
to set the fps of the raw stream than these VUI params.
best regards
Jan
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