- 专利标题: PERFORMING TRICK PLAY FUNCTIONS IN A DIGITAL VIDEO RECORDER WITH EFFICIENT USE OF RESOURCES
-
申请号: EP18157409.6申请日: 2007-10-31
-
公开(公告)号: EP3383028A1公开(公告)日: 2018-10-03
- 发明人: VANNIER, Eric
- 申请人: TiVo Solutions Inc.
- 申请人地址: 2160 Gold Street San Jose CA 95002 US
- 专利权人: TiVo Solutions Inc.
- 当前专利权人: TiVo Solutions Inc.
- 当前专利权人地址: 2160 Gold Street San Jose CA 95002 US
- 代理机构: Pisani, Diana Jean
- 优先权: US855890P 20061031; US928828 20071030
- 主分类号: H04N5/783
- IPC分类号: H04N5/783 ; H04N21/4402 ; H04N21/47 ; H04N21/81 ; H04N21/84
摘要:
Techniques for selecting a picture of a video program for display in accordance with a selected trick play mode of a DVR are described herein. Sometimes, when desired playback speed is faster than normal, a DVR is forced to select some pictures to play and some pictures to skip. Ideally, in order to preserve "smooth" viewing quality, the next picture to be displayed should be temporally close to the currently displayed picture. Since some pictures can take longer to decode than others, accounting for picture decoding costs helps ensure that the best picture can be selected for decoding given playback speed requirements. According to one embodiment of the invention, for each picture of a plurality of pictures in a video data stream, a DVR determines a decoding cost for that picture. Based on the determined costs, the DVR selects a particular picture. The DVR outputs the selected picture for display.
公开/授权文献
信息查询