Low latency video encoder
First Claim
Patent Images
1. A method comprising:
- encoding, by a video encoder and based on a first quantization factor (QP), one or more first groups of image blocks of a first video frame;
estimating, by a processing device, the size of an image slice comprising a first plurality of further groups of image blocks to be encoded; and
determining, based on the estimated size of the image slice, a second quantization factor (QP) to be applied to one or more of the further groups of the first plurality of further groups.
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Abstract
The invention concerns a method comprising: encoding, by a video encoder and based on a first quantization factor (QP), one or more first groups of image blocks of a video frame; estimating, by a processing device, the size of an image slice comprising a plurality of further groups of image blocks to be encoded; and determining, based on the estimated size of the image slice, a second quantization factor (QP) to be applied to one or more of the further groups.
13 Citations
17 Claims
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1. A method comprising:
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encoding, by a video encoder and based on a first quantization factor (QP), one or more first groups of image blocks of a first video frame; estimating, by a processing device, the size of an image slice comprising a first plurality of further groups of image blocks to be encoded; and determining, based on the estimated size of the image slice, a second quantization factor (QP) to be applied to one or more of the further groups of the first plurality of further groups. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A processing device comprising:
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estimator circuitry that determines, based on a first quantization factor (QP) used to encode one or more first groups of image blocks of a first video frame, the size of an image slice comprising a first plurality of further groups of image blocks to be encoded; and rate control circuitry that determines, based on the estimated size of the image slice, a second quantization factor (QP) to be applied to one or more of the further groups of the first plurality of further groups. - View Dependent Claims (14, 15)
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16. A video transmission circuit comprising:
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a video encoder adapted to compress a video signal based on quantization parameter; a processing device for providing the quantization parameter, adapted to estimate, based on a first quantization factor (QP) used to encode one or more first groups of image blocks of a first video frame, the size of an image slice comprising a first plurality of further groups of image blocks to be encoded, and to determine, based on the estimated size of the image slice, a second quantization factor (QP) to be applied to one or more of the further groups of the first plurality of further groups; and an output buffer for storing the compressed video signal. - View Dependent Claims (17)
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Specification