Allegro Dvt

Allegro Dvt2

Pascal Eymery

Christophe Chong-Pan

The invention concerns a method of video encoding comprising: determining a first ratio (IP) based on previously encoded picture frames of a video sequence comprising one or more intra-coded pictures (I) and one or more predicted pictures (P), the first ratio (IP) being calculated based on the ratio between the size of one or more previously encoded intra-coded pictures and the size of one or more previously encoded predicted pictures; and determining a quantization parameter (QP) to be applied to a frame to be encoded based on the first ratio (IP).

Variable rate video encoder

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.

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Saint Martin d'Heres, France

Pascal Eymery