公开(公告)号：US20240187619A1

公开(公告)日：2024-06-06

申请号：US18073725

申请日：2022-12-02

Applicant: ATI TECHNOLOGIES ULC

Inventor： Xingyue Zhang ,  Krzysztof Socha ,  Catalin Beju ,  Kathirkamanathan Nadarajah ,  Gia Tung Phan ,  Weimin Chen ,  Tow Wang

IPC: H04N19/42

CPC classification number: H04N19/42

Abstract: A compute device implements a technique for facilitating selective access to hardware codec resources. The compute device executes, in a trusted execution environment, firmware for controlling graphics hardware of a device that supports a plurality of video codecs. The compute device obtains codec control data specific to the device from a remote system and then configures the firmware to implement a codec policy for selectively providing access to the plurality of video codecs based on the codec control data.

公开(公告)号：US10708596B2

公开(公告)日：2020-07-07

申请号：US15818114

申请日：2017-11-20

Applicant: ATI TECHNOLOGIES ULC

Inventor： Ihab Amer ,  Fabio Gulino ,  Edward Harold ,  Boris Ivanovic ,  Haibo Liu ,  Ho Hin Lau ,  Gabor Sines ,  Catalin Beju

IPC: H04N19/127 ,  H04N19/139 ,  H04N19/182 ,  H04N19/137 ,  H04N19/154 ,  H04N19/172 ,  H04N19/132

Abstract: An encoder of a multimedia system encodes data representative of each image in a video stream to form a bitstream that is transmitted over a network to a decoder that decodes the bitstream and provides the decoded information to a multimedia application for display to the user. As consecutive images may have nearly identical pixel values, the multimedia system detects pixel value variations between consecutive images that are below a specified threshold to reduce active processing on such pictures, which includes, for example, encoding, decoding, and post-processing. The multimedia system either selectively encodes or selectively processes the current image that has pixel values that vary from an immediately preceding image within the specified threshold.