3: Recording options
MPEG4000-D4 Hardware Reference Manual
© 2011 Advanced Micro Peripherals
Document version A.01
3
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Hints for reducing bit rates
There are four ways that you can reduce the bit rate and hence optimize storage:
▪
Reduce the picture size
▪
Increase the quantization value
▪
Reduce the frame rate
▪
Increase the I picture interval
NOTE:
THESE OPTIONS MIGHT NOT BE AVAILABLE UNDER CBR.
IN CBR, QUANTIZATION VALUE IS CONTROLLED BY THE MPEG4000-D4 TO MEET THE SET BIT
RATE ONCE THE PICTURE SIZE, FRAME RATE AND I PICTURE INTERVAL ARE FIXED.
