US 2017/0013263 A1Published application

Method and Apparatus of Video Encoding with Partitioned Bitstream

AssigneeMediatek Inc.

InventorsYung-Chang Chang, Chi-Cheng Ju, Yi-Hau Chen, De-Yuan Shen

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Abstract

A method and apparatus for video encoding to generate a partitioned bitstream without buffering transform coefficient and/or prediction data for subsequent coding units are disclosed. An encoder incorporating an embodiment according to the present invention receives first video parameters associated with a current coding unit, wherein no first video parameters associated with subsequent coding units are buffered. The encoder then encodes the first video parameters to generate a current first compressed data corresponding to the current coding unit. A first memory address in the first logic unit is determined and the encoder provides the current first compressed data at the first memory address in the first logic unit.

Claims17

Dependent claims

A method of video encoding to generate partitioned bitstream comprising a first logic unit and a second logic unit, the first logic unit comprises first compressed data corresponding to coding units of a coding unit group and the second logic unit comprises second compressed data corresponding to the coding units, the method comprising:

receiving first video parameters and second video parameters, wherein the first video parameters correspond to either quantized transform coefficients or other non-transform-coefficient coding data of the coding units, but not both, and the second video parameters correspond to either the non-transform-coefficient coding data or the quantized transform coefficients of the coding units not belonging to the first video parameters;
storing the first video parameters associated with one or more coding units including a current coding unit in a first buffer, wherein whenever first video parameters associated with one coding unit are available in the first buffer, an entropy coder is operable to start processing the first video parameters associated with said one coding unit;
encoding the first video parameters stored in the first buffer to generate a current first compressed data corresponding to the current coding unit;
determining first memory address in the first logic unit;
and
providing the current first compressed data at the first memory address for the first logic unit before the whole second logic unit is generated and providing current second compressed data corresponding to the second video parameters for the second logic unit before the whole first logic unit is generated, wherein the first compressed data and the second compressed data associated with one or more same coding units are provided to the first logic unit and the second logic unit respectively.

3 more elements

An apparatus for video encoding to generate partitioned bitstream comprising a first logic unit and a second logic unit, the first logic unit comprises first compressed data corresponding to coding units of a coding unit group and the second logic unit comprises second compressed data corresponding to the coding units, each of the first compressed data and each of the second compressed data are able to reconstructed one of the coding units, the apparatus comprising one or more electronic circuits configured to:

receive first video parameters and second video parameters, wherein the first video parameters correspond to either quantized transform coefficients or other non-transform-coefficient coding data of the coding units, but not both, and the second video parameters correspond to either the non-transform-coefficient coding or the quantized transform coefficients of the coding units not belonging to the first video parameters;
store the first video parameters associated with one or more coding units including a current coding unit in a first buffer, wherein whenever first video parameters associated with one coding unit are available in the first buffer, the entropy coder is operable to start processing the first video parameters associated with said one coding unit;
encode the first video parameters stored in the first buffer to generate a current first compressed data corresponding to the current coding unit;
determine first memory address in the first logic unit;
and
provide the current first compressed data at the first memory address for the first logic unit before the whole second logic unit is generated and providing current second compressed data corresponding to the second video parameters for the second logic unit before the whole first logic unit is generated, wherein the first compressed data and the second compressed data associated with one or more same coding units are provided to the first logic unit and the second logic unit respectively.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/273,733Filed 23 Sep 2016
Priority: 14 Nov 2011
Published: 12 Jan 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H04N 19/124
Characterised by the element, parameter or selection affected or controlled by the adaptive coding: quantisation
H04N 19/13
Characterised by the element, parameter or selection affected or controlled by the adaptive coding: adaptive entropy coding, e.g. adaptive…
H04N 19/152
Data rate or code amount at the encoder output: by measuring the fullness of the transmission buffer
H04N 19/174
The unit being an image region, e.g. an object: the region being a slice, e.g. a line of blocks or a group of blocks

Family

Application13/295,956Continuation · filed 14 Nov 2011
Application15/273,733Continuation
US 10,237,554 B2Related patent
US 2013/0121410 A1Published application
US 2017/0013263 A1This patent

From the US filing history. Foreign family members aren’t listed.