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Rate control of IPP H.264 Encoder

mdsaku
Beginner
126 Views
Hi Guys,

I am using Intel IPP 6.1 H.264 video encoder. I found two types of rate control method AVBR and CBR.
What rate control methods are used in IPP encoder? Do you have any reference documents for algorithm description just like IEEE paper...

Thanks.
Mohammed
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1 Reply
Ying_H_Intel
Employee
126 Views
Hi Mohammed,

Some information from theencoderdeveloper for your reference,

In IPP H.264 there are two BRC modes indeed: the so-called CBR and VBR, they mainly differ in the internal constants which regulate the averaging periods the speed of reaction of the BRC algo to the deviation from the target average bitrate. CBR provides faster reaction, hence better bitrate keeping, at the expense of quality.

The BRC mode can be set in the umc_video_enc_con application via the parameter file, 1 corresponding to CBR, 2 to VBR, 0 to constant QP mode.

And some informationinhttp://en.wikipedia.org/wiki/H.264/MPEG-4_AVC

Regards,
Ying

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