US 2013/0094564 A1 · RATE-DISTORTION-COMPLEXITY OPTIMIZATION OF VIDEO ENCODING

Abstract

A system and method provide a video coding system for optimizing encoding bitrate, distortion and complexity for a video hosting service. The system comprises an encoding module configured to encode multiple videos with a bitrate control strategy, a pair of complexity allocation control parameters and one or more target output video formats specifications, which include target resolution, target bitrate and target quality information. The encoding module obtains encoding bitrate, distortion and complexity performance samples from the encoding. From the encoding bitrate, distortion and complexity performance samples, the encoding module is configured to select optimal encoding bitrate, distortion and complexity performance samples. The encoding computation profile mapping module is configured to obtain multiple computation levels from the optimal encoding bitrate, distortion and complexity performance samples. For each computational level, a pair of optimized complexity allocation control parameters and number of encoding passes are selected.

Claims20

Dependent claims

A computer system for optimizing encoding bitrate, distortion and complexity for a video hosting service, the system comprising:

an encoding module configured to:
encode a plurality of videos with a bitrate control strategy, a pair of complexity allocation control parameters and one or more target output video formats specifications;
obtain encoding bitrate, distortion and complexity performance samples from the encoding of the plurality of videos;
select optimal encoding bitrate, distortion and complexity performance samples from the encoding bitrate, distortion and complexity performance samples;
and
an encoding computation profile mapping module, coupled to the encoding module, configured to:
obtain a plurality of computation levels from the selected optimal encoding bitrate, distortion and complexity performance samples;
and
for each computation level, select a pair of optimized complexity allocation control parameters and the number of encoding passes corresponding to the selected optimal encoding bitrate, distortion and complexity samples.

6 more elements

A non-transitory computer-readable storage medium having executable computer program instructions recorded thereon for optimizing encoding bitrate, distortion and complexity for a video hosting service, the computer program instructions comprise instructions for:

encoding a plurality of videos with a bitrate control strategy, a pair of complexity allocation control parameters and one or more target output video formats specifications;
obtaining encoding bitrate, distortion and complexity performance samples from the encoding of the plurality videos;
selecting optimal encoding bitrate, distortion and complexity performance samples from the encoding bitrate, distortion and complexity performance samples;
and
obtaining a plurality of computation levels from the selected optimal encoding bitrate, distortion and complexity performance samples;
and
for each computation level, selecting a pair of optimized complexity allocation control parameters and number of encoding passes corresponding to the selected optimal encoding bitrate, distortion and complexity samples.

4 more elements

Dependencies are inferred from the claim text.

Rate-distortion-complexity optimization of video encoding

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Rate-distortion-complexity optimization of video encoding

Life of this patent

Abstract

Claims20