Method and system for rate estimation in a video encoder
AssigneeBroadcom Corporation
InventorRaynard Hinds
Life of this patent
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Abstract
Described herein is a method and system for rate estimation in a video encoder. The method and system use estimation metrics that can also be part of motion estimation and spatial prediction. A rate controller may utilize the system for rate estimation in two ways. The rate controller may supply a quantization parameter and receive a bit estimate from the rate estimator. Alternatively, the rate controller may supply a bit estimate and receive a quantization parameter from the rate estimator.
Claims20
A method for rate estimation in a video encoder, said method comprising:
- determining a correlation between a first rate control metric and a second rate control metric;
- generating an estimation metric;
- and
- estimating the first rate control metric from the second rate control metric and the estimation metric.
A system for rate estimation in a video encoder, said system comprising:
- a first plurality of instructions for correlating a first rate control metric and a second rate control metric;
- a second plurality of instructions for generating an estimation metric;
- and
- a third plurality of instructions for estimating the first rate control metric from the second rate control metric and the estimation metric.
A system comprising:
- an integrated circuit comprising:
- a first circuit for determining a correlation between a first rate control metric and a second rate control metric;
- a second circuit for generating an estimation metric;
- and
- a third circuit for estimating the first rate control metric from the second rate control metric and the estimation metric.
Dependencies are inferred from the claim text.