Invention Grant
- Patent Title: Managing encoder parameters for parallel transcoding
- Patent Title (中): 管理编码器参数进行并行转码
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Application No.: US13840026Application Date: 2013-03-15
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Publication No.: US08928804B2Publication Date: 2015-01-06
- Inventor: Alexander Garland MacInnis , Hongtao Zhu , Jason William Herrick , Brian Francis Schoner , Junlin Li
- Applicant: Broadcom Corporation
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Foley & Lardner LLP
- Main IPC: H04N7/01
- IPC: H04N7/01 ; H04N7/26 ; H04N19/40 ; H04N19/124 ; H04N19/146 ; H04N19/436

Abstract:
Disclosed are various embodiments directed to transcoding a bit stream in parallel. A bit stream may be divided into a plurality of segments, where a plurality of transcoders encode at least a portion of the segments in parallel. If encoding is performed using variable bit rate (BR) encoding, each encoder may encode a segment and vary a BR for the segment. A measured average BR is compared with a target average BR to determine whether to adjust a video quality level (VQL) or any other encoder parameter. A relatively constant subjective quality may be maintained using variable BR encoding while achieving a target average BR. When using constant BR encoding, a VQL or other encoder parameter is used by encoders to achieve relatively constant subjective quality. For example, a relatively continuous quantization parameter between adjacent encoded segments may be achieved.
Public/Granted literature
- US20140139733A1 MANAGING ENCODER PARAMETERS FOR PARALLEL TRANSCODING Public/Granted day:2014-05-22
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