公开(公告)号：US20190335189A1

公开(公告)日：2019-10-31

申请号：US15965281

申请日：2018-04-27

Applicant: ATI Technologies ULC

Inventor： Ahmed M. Abdelkhalek ,  Edward A. Harold ,  Andy Sung ,  Stephen Ho ,  Lei Zhang ,  Ihab Amer ,  Gabor Sines ,  Zhiqi Hao ,  Yang Liu ,  Baochun Li ,  Kai Sun

IPC: H04N19/463 ,  H04N19/152 ,  H04N19/593

Abstract: Systems, apparatuses, and methods for reducing latency when consuming an encoded video bitstream in real-time are disclosed. A video encoder encodes a video bitstream and writes chunks of the encoded bitstream to a bitstream buffer. Prior to the encoder completing the encoding of an entire frame, or an entire slice of a frame, a consumer module consumes encoded chunks of the bitstream. In one implementation, to enable pipelining of the consumption with the encoding, the encoder updates a buffer write pointer with an indication of the amount of data that has been written to the bitstream buffer. The consumer module retrieves encoded data from the bitstream buffer up to the location indicated by the buffer write pointer. In this way, the consumer module is able to access and consume encoded video data prior to the encoder finishing encoding an entire frame or an entire slice of the frame.

公开(公告)号：US20220159286A1

公开(公告)日：2022-05-19

申请号：US17587497

申请日：2022-01-28

Applicant: ATI Technologies ULC

Inventor： Ahmed M. Abdelkhalek ,  Edward A. Harold ,  Andy Sung ,  Stephen Ho ,  Lei Zhang ,  Ihab Amer ,  Gabor Sines ,  Zhiqi Hao ,  Yang Liu ,  Baochun Li ,  Kai Sun

IPC: H04N19/463 ,  H04N19/593 ,  H04N19/152

Abstract: Systems, apparatuses, and methods for reducing latency when consuming an encoded video bitstream in real-time are disclosed. A video encoder encodes a video bitstream and writes chunks of the encoded bitstream to a bitstream buffer. Prior to the encoder completing the encoding of an entire frame, or an entire slice of a frame, a consumer module consumes encoded chunks of the bitstream. In one implementation, to enable pipelining of the consumption with the encoding, the encoder updates a buffer write pointer with an indication of the amount of data that has been written to the bitstream buffer. The consumer module retrieves encoded data from the bitstream buffer up to the location indicated by the buffer write pointer. In this way, the consumer module is able to access and consume encoded video data prior to the encoder finishing encoding an entire frame or an entire slice of the frame.

公开(公告)号：US11252429B2

公开(公告)日：2022-02-15

申请号：US15965281

申请日：2018-04-27

Applicant: ATI Technologies ULC

Inventor： Ahmed M. Abdelkhalek ,  Edward A. Harold ,  Andy Sung ,  Stephen Ho ,  Lei Zhang ,  Ihab Amer ,  Gabor Sines ,  Zhiqi Hao ,  Yang Liu ,  Baochun Li ,  Kai Sun

IPC: H04N19/463 ,  H04N19/593 ,  H04N19/152

Abstract: Systems, apparatuses, and methods for reducing latency when consuming an encoded video bitstream in real-time are disclosed. A video encoder encodes a video bitstream and writes chunks of the encoded bitstream to a bitstream buffer. Prior to the encoder completing the encoding of an entire frame, or an entire slice of a frame, a consumer module consumes encoded chunks of the bitstream. In one implementation, to enable pipelining of the consumption with the encoding, the encoder updates a buffer write pointer with an indication of the amount of data that has been written to the bitstream buffer. The consumer module retrieves encoded data from the bitstream buffer up to the location indicated by the buffer write pointer. In this way, the consumer module is able to access and consume encoded video data prior to the encoder finishing encoding an entire frame or an entire slice of the frame.