Invention Grant
- Patent Title: Adaptive streaming techniques
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Application No.: US14190880Application Date: 2014-02-26
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Publication No.: US09992499B2Publication Date: 2018-06-05
- Inventor: Yeping Su , Hao Pan , James O. Normile , Hsi-Jung Wu
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Baker & Hostetler LLP
- Agent Robert L. Hails
- Main IPC: H04N19/152
- IPC: H04N19/152 ; H04N19/142 ; H04N19/87 ; H04N21/234 ; H04N21/24 ; H04N21/44 ; H04N21/2343 ; H04N21/845

Abstract:
Systems and methods are presented for minimizing the suddenness and immediacy of changes to the video quality perceived by users due to bandwidth fluctuations and transitions between different bitrate streams. A method may include identifying an upcoming bitrate change in a bitstream and a nearest scene cut boundary from sync frame scene cut tags included in the bitstream. The method may include calculating whether waiting until the identified nearest scene cut boundary before changing the bitrate will cause the buffer to drop below a threshold. When the buffer is calculated to not drop below the threshold, the method may postpone the upcoming bitrate change until the identified nearest scene cut boundary.
Public/Granted literature
- US20140241415A1 ADAPTIVE STREAMING TECHNIQUES Public/Granted day:2014-08-28
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