发明授权
- 专利标题: Playback of compressed media files without quantization gaps
- 专利标题(中): 压缩媒体文件的播放没有量化间隙
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申请号: US11519389申请日: 2006-09-11
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公开(公告)号: US08190441B2公开(公告)日: 2012-05-29
- 发明人: William S. Kincaid
- 申请人: William S. Kincaid
- 申请人地址: US CA Cupertino
- 专利权人: Apple Inc.
- 当前专利权人: Apple Inc.
- 当前专利权人地址: US CA Cupertino
- 主分类号: G10L21/00
- IPC分类号: G10L21/00
摘要:
Playback by a decoder of a lossy compressed digital media file without quantization gaps is disclosed. The digital media file can be formed of a number of audio samples grouped into a corresponding number of audio frames. As a method, one embodiment can be carried out by identifying an encoder used to compress the digital media file; obtaining an encoder delay value for the identified encoder; obtaining a decoder delay value for the decoder; determining a audio sample count corresponding to a last valid audio sample; setting a re-synchronization after seek option marker N audio frames from the last valid audio sample; and decoding valid audio samples using the encoder delay value, the decoder delay value, and the sample count corresponding to the last valid audio sample.
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