Control I-frame Size

[Michael Joachimiak]

Bitrate fluctuation is normal in case of I-frame. I don't know if you can
do much about it apart from using rate control.
Do you use any rate control?
Instead of having periodical intra-frame refresh you could have cyclic
intra macroblock refresh. It means you do not refresh the whole frame at
once but you have some macroblocks forced to be encoded as intra in every
frame.
Thus the whole frame is intra-refreshed after some period of time.

2011/12/3 Umakant Goyal <umakantgoyal1 at gmail.com>

> Hi Ashwini, I think you misunderstood me. Here i am not talking about
> picture size.I need to reduce the number of bits that is being produced by
> encoder to generate I-Frame. Please suggest how to reduce the number of
> bits for per I-Frame without loosing the quality much.
>
> Thanks
>
>
> On Fri, Dec 2, 2011 at 4:43 PM, Ashwini Sharma <ak.ashwini at gmail.com>wrote:
>
>> Hi,
>>
>> I think you can use videoscale to do the job.
>>
>> --Ashwini
>>
>> On Mon, Nov 28, 2011 at 10:58 PM, Umakant Goyal <umakantgoyal1 at gmail.com>wrote:
>>
>>> Hi, What all settings of ffenc_h263 will help me to control/reduce the
>>> size of I-Frame?
>>>
>>> Thanks in Advance
>>>
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>
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-- 
Your Sincerely
Michal Joachimiak
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