公开(公告)号：US20180020222A1

公开(公告)日：2018-01-18

申请号：US15642586

申请日：2017-07-06

Applicant: MEDIATEK INC.

Inventor： Tung-Hsing WU ,  Chung-Hua TSAI ,  Wei-Cing LI ,  Lien-Fei CHEN ,  Li-Heng CHEN ,  Han-Liang CHOU ,  Ting-An LIN ,  Yi-Hsin HUANG

IPC: H04N19/152 ,  H04N19/85 ,  H04N19/423

CPC classification number: H04N19/152 ,  H04N19/174 ,  H04N19/423 ,  H04N19/436 ,  H04N19/85 ,  H04N19/96

Abstract: An apparatus and method for video encoding with low latency is disclosed. The apparatus comprises a video encoding module to encode input video data into compressed video data, one or more processing modules to provide the input video data to the video encoding module or to further process the compressed video data from the video encoding module, and one data memory associated with each processing module to store or to provide shared data between the video encoding module and each processing module. The encoding module and each processing module are configured to manage data access of one data memory by coordinating one of the video encoding module and one processing module to receive target shared data from one data memory after the target shared data from another of the video encoding module and one processing module are ready in said one data memory.

公开(公告)号：US20180108331A1

公开(公告)日：2018-04-19

申请号：US15786240

申请日：2017-10-17

Applicant: MEDIATEK INC.

Inventor： Ping CHAO ,  Ting-An LIN ,  Tung-Hsing WU ,  Kung-Tsun YANG ,  Wan-Yu CHEN ,  Chuang-Chi CHIOU ,  Ping-yao WANG ,  Wei-Gen WU ,  Hsin-Hao CHUNG ,  Chih-Ming WANG ,  Han-Liang CHOU ,  Chung Hsien LEE ,  Yung-Chang CHANG ,  Chi-Cheng JU

IPC: G09G5/393 ,  G09G5/395

Abstract: Aspects of the disclosure provide a method for merging compressed access units according to compression rates and/or positions of the respective compressed access units. The method can include receiving a sequence of compressed access units corresponding to a sequence of raw access units partitioned from an image or a video frame and corresponding to a sequence of memory spaces in a frame buffer, determining a merged access unit including at least two consecutive compressed access units based on compression rates and/or positions of the sequence of compressed access units. The merged access unit is to be stored in the frame buffer with a reduced gap between the at least two consecutive compressed access units compared with storing the at least two consecutive compressed access units in corresponding memory spaces in the sequence of memory spaces.

公开(公告)号：US20170064310A1

公开(公告)日：2017-03-02

申请号：US15191308

申请日：2016-06-23

Applicant: MediaTek Inc.

Inventor： Chao-Chih HUANG ,  Ting-An LIN ,  Shen-Kai CHANG ,  Han-Liang CHOU

IPC: H04N19/159 ,  H04N19/174 ,  H04N19/172 ,  H04N19/13 ,  H04N19/184 ,  H04N19/15 ,  H04N19/43 ,  H04N19/61 ,  H04N19/124 ,  H04N19/176 ,  H04N19/82

CPC classification number: H04N19/15 ,  H04N19/174 ,  H04N19/176 ,  H04N19/188

Abstract: A method and system for encoding a group of coding blocks and packetizing the compressed data into slices/packets with hard-limited packet size are disclosed. According to the present invention, a packetization map for at least a portion of a current picture is determined. The packetization map associates coding blocks in at least a portion of the current picture with one or more packets by identifying a corresponding group of coding blocks for each packet of said one or more packets. The corresponding group of coding blocks for each packet is then encoded according to the packetization map and the size of each packet is determined. The packet size is checked. If any packet size exceeds a constrained size, a new packetization map is generated and the corresponding group of coding blocks for each packet is encoded according to the new packetization map.

Abstract translation: 公开了一种用于对一组编码块进行编码并将压缩数据打包成具有硬限制包大小的片/包的方法和系统。 根据本发明，确定当前画面的至少一部分的分组化图。 分组化映射通过识别所述一个或多个分组的每个分组的对应的编码块组，将当前图片的至少一部分中的编码块与一个或多个分组相关联。 然后根据分组化映射对每个分组的相应组的编码块进行编码，并确定每个分组的大小。 检查包大小。 如果任何分组大小超过约束大小，则生成新的分组化映射，并且根据新的分组化映射对每个分组的相应组的编码块进行编码。

公开(公告)号：US20170006294A1

公开(公告)日：2017-01-05

申请号：US15265896

申请日：2016-09-15

Applicant: MediaTek Inc.

Inventor： Chao-Chih HUANG ,  Ting-An LIN ,  Shen-Kai CHANG ,  Han-Liang CHOU

IPC: H04N19/159 ,  H04N19/124 ,  H04N19/15 ,  H04N19/139 ,  H04N19/51 ,  H04N19/42 ,  H04N19/13 ,  H04N19/61 ,  H04N19/105

CPC classification number: H04N19/439 ,  H04N19/42 ,  H04N19/423 ,  H04N19/43 ,  H04N19/433

Abstract: A hybrid video encoding method and system using a software engine and a hardware engine. The software engine receives coding unit data associated with a current picture, and performs a first part of the video encoding operation by executing instructions. The first part of the video encoding operation generates an inter predictor and control information corresponding to the coding unit data of the current picture. The first part of the video encoding operation stores the inter predictor into an off-chip memory. The hardware engine performs a second part of the video encoding operation according to the control information. The second part of the video encoding operation receives the inter predictor, and subtracts the inter predictor from the coding unit data to generate a residual signal. The second part of the video encoding operation then transforms and quantizes the residual signal to generate transformed and quantized residual signal, and encodes the transformed and quantized residual signal to generate an encoded video bitstream.

Abstract translation: 一种使用软件引擎和硬件引擎的混合视频编码方法和系统。 软件引擎接收与当前图像相关联的编码单元数据，并且通过执行指令来执行视频编码操作的第一部分。 视频编码操作的第一部分产生与当前图像的编码单元数据相对应的帧间预测器和控制信息。 视频编码操作的第一部分将帧间预测器存储在片外存储器中。 硬件引擎根据控制信息执行视频编码操作的第二部分。 视频编码操作的第二部分接收帧间预测器，并从编码单元数据中减去帧间预测器，以生成残留信号。 视频编码操作的第二部分然后对剩余信号进行变换和量化以产生经变换和量化的残差信号，并且对经变换和量化的残差信号进行编码以产生经编码的视频比特流。