公开(公告)号：US20140334545A1

公开(公告)日：2014-11-13

申请号：US13905770

申请日：2013-05-30

Applicant: Advanced Micro Devices, Inc.

Inventor： Michael L. Schmit ,  Radhakrishna Giduthuri ,  Rajy Meeyakhan Rawther ,  Vicky W. Tsang ,  Passant Karunaratne

IPC: H04N19/51 ,  H04N19/577

CPC classification number: H04N19/105 ,  H04N19/115 ,  H04N19/142 ,  H04N19/15 ,  H04N19/172 ,  H04N19/42

Abstract: Methods and apparatus for video processing are disclosed. In one embodiment the work of processing of different types of video frames is allocated between a plurality of computing resources. For example, different computing resources for can be used for I, P and B frames, where an I frame is an intra-frame encoded with no other frames as a reference; a P frame is encoded with one previous I or P frame as a reference and a B frame is encoded with one previous and one future frame as references. In one example, a central processing unit (CPU) performs encoding of I frames and P frames of a video and a graphics processing unit (GPU) performs initial encoding of B frames of the video in connection with a fixed function video encoder configured to perform entropy encoding of the B frames.

Abstract translation: 公开了用于视频处理的方法和装置。 在一个实施例中，在多个计算资源之间分配不同类型的视频帧的处理工作。 例如，不同的计算资源可以用于I，P和B帧，其中I帧是没有其他帧作为参考的帧内编码的; 以前一个I或P帧作为参考对P帧进行编码，并且以前一个和未来的一个帧作为参考对B帧进行编码。 在一个示例中，中央处理单元（CPU）执行视频的I帧和P帧的编码，并且图形处理单元（GPU）结合配置为执行的固定功能视频编码器执行视频的B帧的初始编码 B帧的熵编码。

公开(公告)号：US10440359B2

公开(公告)日：2019-10-08

申请号：US13905770

申请日：2013-05-30

Applicant: Advanced Micro Devices, Inc.

Inventor： Michael L. Schmit ,  Radhakrishna Giduthuri ,  Rajy Meeyakhan Rawther ,  Vicky W. Tsang ,  Passant V. Karunaratne

IPC: H04N19/51 ,  H04N19/577 ,  H04N19/105 ,  H04N19/172 ,  H04N19/15 ,  H04N19/115 ,  H04N19/142 ,  H04N19/42

Abstract: Methods and apparatus for video processing are disclosed. In one embodiment the work of processing of different types of video frames is allocated between a plurality of computing resources. For example, different computing resources for can be used for I, P and B frames, where an I frame is an intra-frame encoded with no other frames as a reference; a P frame is encoded with one previous I or P frame as a reference and a B frame is encoded with one previous and one future frame as references. In one example, a central processing unit (CPU) performs encoding of I frames and P frames of a video and a graphics processing unit (GPU) performs initial encoding of B frames of the video in connection with a fixed function video encoder configured to perform entropy encoding of the B frames.

公开(公告)号：US20150172687A1

公开(公告)日：2015-06-18

申请号：US14635604

申请日：2015-03-02

Applicant: Advanced Micro Devices, Inc.

Inventor： Michael L. Schmit ,  Vicky W. Tsang ,  Radhakrishna Giduthuri

IPC: H04N19/43 ,  H04N19/513 ,  H04N19/436

CPC classification number: H04N19/43 ,  H04N19/176 ,  H04N19/196 ,  H04N19/198 ,  H04N19/40 ,  H04N19/436 ,  H04N19/46 ,  H04N19/513 ,  H04N19/521 ,  H04N19/53 ,  H04N19/61 ,  H04N19/80

Abstract: A system and method of performing motion estimation in a video encoder is enclosed. The system and method include calculating one or more candidate motion vectors for each macroblock of a video image to form a list of candidate motion vectors, calculating a second one or more candidate motion vectors using a sub-region of at least one macroblock of the video image to include in the list of candidate motion vectors, and comparing the calculated candidate motion vectors of a first macroblock with the calculated candidate motion vectors of at least one sub-region of the first macroblock to provide the estimated contribution to the candidate motion vector of the macroblock. The calculating a second one or more candidate motion vectors using a sub-region of at least one macroblock may include using an approximation different from the calculating one or more candidate motion vectors for each macroblock.

Abstract translation: 封闭了在视频编码器中执行运动估计的系统和方法。 该系统和方法包括为视频图像的每个宏块计算一个或多个候选运动矢量以形成候选运动矢量的列表，使用视频的至少一个宏块的子区域来计算第二个一个或多个候选运动矢量 图像以包括在候选运动矢量列表中，并且将所计算的第一宏块的候选运动矢量与所计算的第一宏块的至少一个子区域的候选运动矢量进行比较，以将估计的贡献提供给候选运动矢量的候选运动矢量 宏块。 使用至少一个宏块的子区域来计算第二个一个或多个候选运动矢量可以包括使用与为每个宏块计算一个或多个候选运动矢量不同的近似。