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公开(公告)号：US20100014594A1
公开(公告)日：2010-01-21
申请号：US12175101
申请日：2008-07-17
IPC分类号： H04N7/24
CPC分类号： H04N21/44016 , H04N21/23424 , H04N21/23608 , H04N21/23895 , H04N21/4344 , H04N21/8547
摘要： System and method for performing a splice operation on an encrypted or unencrypted MPEG-2 transport stream. A splice trigger is received at a pre-conditioning encoder. In response, the encoder generates, e.g., an SCTE-35 cue message that is intended to be received by a splicer. Also in response to the splice trigger, the encoder encodes/conditions a network feed such that a decoder buffer delay reaches a predefined value at a video frame of the network feed that corresponds to a splice point indicated by the SCTE-35 cue message. The network feed may then be encrypted in a known fashion. At the splicer, another feed is switched into the stream at the splice point, wherein the another feed is encoded such that a decoder buffer delay at a video frame of the another feed corresponding to the splice point is the same as the predefined value. The predefined value is defined as DTS−STC, where DTS is a Decoding Time Stamp and STC is a System Time Clock. The pre-conditioning encoder generates around the splice point audio PES packets that contain a single aligned audio frame.
摘要翻译： 在加密或未加密的MPEG-2传输流上执行拼接操作的系统和方法。 在预调节编码器处接收接头触发器。 作为响应，编码器生成例如打算由拼接器接收的SCTE-35提示消息。 此外，响应于接合触发，编码器对网络馈送进行编码/调节，使得解码器缓冲器延迟达到对应于由SCTE-35提示消息指示的拼接点的网络馈送的视频帧处的预定义值。 然后可以以已知的方式加密网络馈送。 在拼接器处，在拼接点将另一个进纸切换到流中，其中对另一个进给进行编码，使得对应于拼接点的另一进给的视频帧处的解码器缓冲器延迟与预定义的值相同。 该预定义值被定义为DTS-STC，其中DTS是解码时间戳，STC是系统时钟。 预调节编码器围绕包含单个对准音频帧的拼接点音频PES分组生成。
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公开(公告)号：US08781003B2
公开(公告)日：2014-07-15
申请号：US12175101
申请日：2008-07-17
IPC分类号： H04N11/02
CPC分类号： H04N21/44016 , H04N21/23424 , H04N21/23608 , H04N21/23895 , H04N21/4344 , H04N21/8547
摘要： System and method for performing a splice operation on an encrypted or unencrypted MPEG-2 transport stream. A splice trigger is received at a pre-conditioning encoder. In response, the encoder generates, e.g., an SCTE-35 cue message that is intended to be received by a splicer. Also in response to the splice trigger, the encoder encodes/conditions a network feed such that a decoder buffer delay reaches a predefined value at a video frame of the network feed that corresponds to a splice point indicated by the SCTE-35 cue message. The network feed may then be encrypted in a known fashion. At the splicer, another feed is switched into the stream at the splice point, wherein the another feed is encoded such that a decoder buffer delay at a video frame of the another feed corresponding to the splice point is the same as the predefined value. The predefined value is defined as DTS-STC, where DTS is a Decoding Time Stamp and STC is a System Time Clock. The pre-conditioning encoder generates around the splice point audio PES packets that contain a single aligned audio frame.
摘要翻译： 在加密或未加密的MPEG-2传输流上执行拼接操作的系统和方法。 在预调节编码器处接收接头触发器。 作为响应，编码器生成例如打算由拼接器接收的SCTE-35提示消息。 此外，响应于接合触发，编码器对网络馈送进行编码/调节，使得解码器缓冲器延迟达到对应于由SCTE-35提示消息指示的拼接点的网络馈送的视频帧处的预定义值。 然后可以以已知的方式加密网络馈送。 在拼接器处，在拼接点将另一个进纸切换到流中，其中对另一个进给进行编码，使得对应于拼接点的另一进给的视频帧处的解码器缓冲器延迟与预定义的值相同。 该预定义值被定义为DTS-STC，其中DTS是解码时间戳，STC是系统时钟。 预调节编码器围绕包含单个对准音频帧的拼接点音频PES分组生成。
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3.发明授权公开(公告)号：US08949883B2
公开(公告)日：2015-02-03
申请号：US12779035
申请日：2010-05-12
IPC分类号： H04N21/44 , H04N21/23 , H04N21/234
CPC分类号： H04L65/607 , H04L65/4069 , H04L65/601 , H04N21/23424 , H04N21/44016
摘要： In one method embodiments, providing a transport stream to a client device, the transport stream comprising a head stream and a tail stream, the head stream and the tail stream each comprising a compressed video sequence; providing information in a transport stream packet associated with the head stream, the information configured to cause the client device to selectively control an output of at least one of a plurality of pictures of the head stream yet to be output from a decoded picture buffer (DPB) at an out-point from the head stream to the trail stream.
摘要翻译： 在一种方法实施例中，向客户端设备提供传输流，所述传输流包括头流和尾流，所述头流和尾流各自包括压缩视频序列; 在与所述头流相关联的传输流分组中提供信息，所述信息被配置为使得所述客户端设备选择性地控制要从解码图像缓冲器（DPB）输出的所述头流的多个图像中的至少一个的输出 ）在从头流到尾迹流的出点处。
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4.发明申请公开(公告)号：US20100293571A1
公开(公告)日：2010-11-18
申请号：US12779035
申请日：2010-05-12
IPC分类号： H04N7/025
CPC分类号： H04L65/607 , H04L65/4069 , H04L65/601 , H04N21/23424 , H04N21/44016
摘要： In one method embodiments, providing a transport stream to a client device, the transport stream comprising a head stream and a tail stream, the head stream and the tail stream each comprising a compressed video sequence; providing information in a transport stream packet associated with the head stream, the information configured to cause the client device to selectively control an output of at least one of a plurality of pictures of the head stream yet to be output from a decoded picture buffer (DPB) at an out-point from the head stream to the trail stream.
摘要翻译： 在一种方法实施例中，向客户端设备提供传输流，所述传输流包括头流和尾流，所述头流和尾流各自包括压缩视频序列; 在与所述头流相关联的传输流分组中提供信息，所述信息被配置为使得所述客户端设备选择性地控制要从解码图像缓冲器（DPB）输出的所述头流的多个图像中的至少一个的输出 ）在从头流到尾迹流的出点处。
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