Hi.

Thanks for the reply - I kinda figured it out by looking at FFMPEG code,
where the maximum is (1 << 16) -1.
My question is just why no a larger 32-bit wasn't used?

Regards.

2009/6/8 Anatoliy Nenashev <[email protected]>

> Hi Stas!
> There is param called "vop_time_increment_resolution" in Video Object
> Layer.  This is a 16-bit unsigned integer that indicates the number of
> evenly spaced subintervals, called ticks, within one modulo time. One modulo
> time represents the fixed interval of one second. Thats why maximum value of
> timebase is 2^16 = 65536.
>
>
>
> Stas Oskin wrote:
>
>> Hi.
>>
>> I'm trying to set a timebase of 1/90000 for the MPEG4 format, as
>> following:
>>
>> c->time_base->num = 1;
>> c->time_base->den = 90000;
>>
>> But I'm getting the following error:
>> "timebase not supported by mpeg 4 standard"
>>
>> Any idea why this happens? 90,000 should be supported by MPEG4 standard -
>> in
>> fact this is the maximum allowable value.
>>
>> Thanks for any idea!
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>>
>>
>>
>
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