公开(公告)号：US20160300586A1

公开(公告)日：2016-10-13

申请号：US15100583

申请日：2014-11-27

申请人： DOLBY INTERNATIONAL AB

发明人： Holger HOERICHü ,  Alexander GROESCHEL ,  Jens POPP ,  Marc ROESSLER ,  Malte SCHMIDT

IPC分类号： G10L25/03 ,  H04N21/24 ,  H04N21/234 ,  G10L19/16

CPC分类号： G10L25/03 ,  G10L19/00 ,  G10L19/167 ,  G11B2020/00036 ,  G11B2020/10703 ,  H04N21/23406 ,  H04N21/2402

摘要： The present document relates to the determination of a 200 bitrate related to an encoded bitstream, and describes a method for determining an estimate of a bitrate of a bitstream comprising a sequence of frames comprising a varying number of bitsand corresponding to excerpts of an audio and/or video signal. At least two frames of the sequence of frames comprise a parameter indicative of a processing delay for the corresponding frame. The method comprises determining: a total number of bits for a subsequence of frames from the bitstream; a corrected number 201 of frames based on a number of frames comprised within the subsequence and the parameters of at least two frames of the subsequence; and a lower bitrate bound and an upper bitrate bound of the bitrate based on the total number of bits, the corrected number of frames and a frame rate of the bitstream.

摘要翻译： 本文件涉及确定与编码比特流相关的200比特率，并且描述了一种用于确定比特流的比特率的估计的方法，该比特流的比特率包括不同数量的比特并且对应于音频和/ 或视频信号。 帧序列中的至少两帧包括指示相应帧的处理延迟的参数。 该方法包括确定：来自比特流的帧的子序列的总比特数; 基于子序列中包含的帧数和子序列的至少两个帧的参数的帧的校正次数201; 以及基于总比特数，校正的帧数和比特流的帧速率的比特率的低比特率边界和高比特率边界。

公开(公告)号：US20160366452A1

公开(公告)日：2016-12-15

申请号：US15111988

申请日：2015-02-10

申请人： DOLBY INTERNATIONAL AB

发明人： Marc ROESSLER ,  Malte SCHMIDT

IPC分类号： H04N21/234 ,  H04N21/233 ,  H04N21/2362 ,  H04N21/236

CPC分类号： H04N21/23424 ,  H04N21/2335 ,  H04N21/23605 ,  H04N21/2362 ,  H04N21/6112 ,  H04N21/6143 ,  H04N21/6168 ,  H04N21/6175 ,  H04N21/6181 ,  H04N21/6187 ,  H04N21/6473 ,  H04N21/64776

摘要： Methods for generating a transport stream (e.g., an MPEG-2 transport stream) such that the transport stream has at least one perfect splicing property, and/or such that the transport stream is indicative of at least one audio/video program and includes metadata indicative of whether the program has a perfect splicing property. Other aspects are methods for splicing such a transport stream, audio/video processing units (e.g., splicers) configured to perform any embodiment of the inventive method, and audio/video processing units which include a buffer memory which stores at least one segment of transport stream generated in accordance with any embodiment of the inventive method.

摘要翻译： 用于生成传输流（例如，MPEG-2传输流）的方法，使得传输流具有至少一个完美的剪接属性，和/或使传输流指示至少一个音频/视频节目并且包括元数据 指示程序是否具有完美的拼接属性。 其他方面是用于拼接这种传输流的方法，被配置为执行本发明方法的任何实施例的音频/视频处理单元（例如，拼接器）以及音频/视频处理单元，其包括缓冲存储器，其存储至少一个传输段 根据本发明方法的任何实施例产生的流。