Invention Grant
US08111971B2 Systems and methods of reducing media stream delay through independent decoder clocks
有权
通过独立解码器时钟减少媒体流延迟的系统和方法
- Patent Title: Systems and methods of reducing media stream delay through independent decoder clocks
- Patent Title (中): 通过独立解码器时钟减少媒体流延迟的系统和方法
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Application No.: US12328071Application Date: 2008-12-04
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Publication No.: US08111971B2Publication Date: 2012-02-07
- Inventor: Tankut Akgul
- Applicant: Tankut Akgul
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Merchant & Gould
- Main IPC: H04N5/932
- IPC: H04N5/932 ; H04N5/935
Abstract:
In one embodiment, a method of reducing video delay in a program stream comprises: setting an audio reference clock to an initial value based on a presentation timestamp for a frame that is the first decodable frame in the audio stream; setting a video reference clock to an initial value based on a presentation timestamp for a frame that is the first decodable frame in the video stream; starting audio and video reference clocks responsive to the later of a minimum buffer fill delay and receipt of a frame that is the first entire decodable frame in the video stream; decoding the audio stream in accordance with the audio reference clock; and decoding the video stream in accordance with the video reference clock.
Public/Granted literature
- US20090148131A1 Systems and Methods of Reducing Media Stream Delay Through Independent Decoder Clocks Public/Granted day:2009-06-11
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