Invention Grant
US08190441B2 Playback of compressed media files without quantization gaps 有权
压缩媒体文件的播放没有量化间隙

  • Patent Title: Playback of compressed media files without quantization gaps
  • Patent Title (中): 压缩媒体文件的播放没有量化间隙
  • Application No.: US11519389
    Application Date: 2006-09-11
  • Publication No.: US08190441B2
    Publication Date: 2012-05-29
  • Inventor: William S. Kincaid
  • Applicant: William S. Kincaid
  • Applicant Address: US CA Cupertino
  • Assignee: Apple Inc.
  • Current Assignee: Apple Inc.
  • Current Assignee Address: US CA Cupertino
  • Main IPC: G10L21/00
  • IPC: G10L21/00
Playback of compressed media files without quantization gaps
Abstract:
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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