发明授权
- 专利标题: Fast switching hybrid video decoder
- 专利标题(中): 快速切换混合视频解码器
-
申请号: US13687069申请日: 2012-11-28
-
公开(公告)号: US09179144B2公开(公告)日: 2015-11-03
- 发明人: Guang Xu , Hongjuan Wang , Qi Zhang , Zhiliang Wang
- 申请人: Cisco Technology, Inc.
- 申请人地址: US CA San Jose
- 专利权人: Cisco Technology, Inc.
- 当前专利权人: Cisco Technology, Inc.
- 当前专利权人地址: US CA San Jose
- 代理机构: Edell, Shapiro & Finnan, LLC
- 主分类号: H04N7/26
- IPC分类号: H04N7/26 ; H04N19/44 ; H04N19/42
摘要:
Techniques are presented herein for switching between a software decoder and a hardware decoder in a hybrid decoder. A video bit stream is received. The video bit stream is analyzed to determine whether or not the video bit stream can be decoded by the hardware decoder. When the video bit stream can be decoded by the hardware decoder, the video bit stream is routed to the hardware decoder and also stored in a first buffer. The video bit stream is decoded by the hardware decoder and when a reference frame is decoded, the reference frame is stored in a second buffer. When the video bit stream cannot be decoded by the hardware decoder, the video bit stream is routed to the software decoder for decoding. When an instantaneous decoder refresh (IDR) frame is decoded by the software decoder, the IDR frame is stored in the first buffer.
公开/授权文献
- US20140146895A1 Fast Switching Hybrid Video Decoder 公开/授权日:2014-05-29
信息查询