公开(公告)号：US20150172683A1

公开(公告)日：2015-06-18

申请号：US14157471

申请日：2014-01-16

Applicant: Broadcom Corporation

Inventor： Alexander Garland MACINNIS

IPC: H04N19/40 ,  H04N19/433 ,  G06T1/00 ,  H04N19/61 ,  G06T9/00 ,  H04N19/48

CPC classification number: H04N19/40 ,  G06F12/0207 ,  G06F13/28 ,  G06T9/00 ,  H04N19/423 ,  H04N19/433 ,  H04N19/48 ,  H04N19/61 ,  H04N19/85 ,  H04N21/44004

Abstract: A system for raster to block conversion in a compressed domain may include a raster to block encoder, a raster to block decoder, and a memory partitioned into a number of memory stripes having widths of a number of bits. The raster to block encoder may be configured to receive image information associated with pixels of an image in raster order, compress the image information associated with the pixels of the image to generate compressed bits that correspond to at least one of memory stripes, and write the compressed bits to the at least one of the memory stripes. The raster to block decoder may be configured to read, from at least one of the memory stripes of the memory, a number of the compressed bits that correspond to at least one block, and decode the number of the compressed bits to generate the at least one block.

Abstract translation: 用于光栅到块压缩域中的转换的系统可以包括光栅到块编码器，光栅到块解码器，以及分割成多个具有多个位宽的存储条的存储器条。 光栅到块编码器可以被配置为以光栅顺序接收与图像的像素相关联的图像信息，压缩与图像的像素相关联的图像信息，以生成对应于存储条的至少一个的压缩位， 压缩比特到该至少一个存储条。 光栅到块解码器可以被配置为从存储器的存储条的至少一个读取与至少一个块相对应的多个压缩位，并且解码压缩位的数量以至少产生 一块

公开(公告)号：US20160192030A1

公开(公告)日：2016-06-30

申请号：US15061916

申请日：2016-03-04

Applicant: BROADCOM CORPORATION

Inventor： Hongtao ZHU ,  Alexander Garland MACINNIS

IPC: H04N21/6587 ,  H04N21/2187 ,  H04N21/845 ,  H04N21/2387 ,  H04N21/242 ,  H04N19/40 ,  H04N21/2343

CPC classification number: H04N21/6587 ,  H04N19/40 ,  H04N21/2187 ,  H04N21/234336 ,  H04N21/23439 ,  H04N21/2387 ,  H04N21/242 ,  H04N21/8456 ,  H04N21/85406

Abstract: A method for performing trick-mode operations with decreased latency for transcode streaming includes receiving and recording a stream of video data. A single transcoder may transcode the stream of video data and generate output video data in an output buffer following. Segmentation index information may be generated that refers to the output data in the output buffer. Skip-backwards, skip-ahead, and resume requests received from a client device are responded by retrieving transcoded video data from the output buffer or retrieving and transcoding video data from an input storage. A method for performing skip-ahead trick-mode operation with decreased latency may use two transcoders such as two threads of the single transcoder to transcode temporally current content and forward content. The forward content may be associated with a forward time offset with respect to the temporally current content. The transcoded forward content is provided in response to skip-ahead trick mode request.

Abstract translation: 用于以降低的代码转换流程执行特技模式操作的方法包括接收和记录视频数据流。 单个代码转换器可对视频数据流进行代码转换，并在输出缓冲器之后生成输出视频数据。 可以生成指向输出缓冲器中的输出数据的分段索引信息。 通过从输出缓冲器检索经转码的视频数据或从输入存储器检索和代码转换视频数据来响应从客户端设备接收到的向后，向前，跳过和恢复请求。 用于以降低的延迟执行跳过特技模式操作的方法可以使用诸如单个代码转换器的两个线程的两个代码转码器对时间上当前的内容进行转码并转发内容。 前向内容可以与相对于时间上的当前内容的前向时间偏移相关联。 响应于跳过提示特技模式请求提供经转码的前向内容。

公开(公告)号：US20140344443A1

公开(公告)日：2014-11-20

申请号：US14020704

申请日：2013-09-06

Applicant: BROADCOM CORPORATION

Inventor： Alexander Garland MACINNIS ,  Rajesh Shankarrao MAMIDWAR

IPC: H04L12/26

CPC classification number: H04L43/08 ,  H04L65/00 ,  H04L65/602 ,  H04L65/608 ,  H04L65/80 ,  H04L67/00

Abstract: A device for providing adaptive bit rate streaming that includes a first transcoder configured to transcode a video stream based at least in part on an encoding characteristic to generate a first transcoded video stream, a network monitor configured to monitor network conditions including a network bandwidth of a network, an adjustment module configured to cause the transcoder to adjust the encoding characteristic in response to a change in the network conditions, an advertising module configured to advertise to a client device an ABR profile that corresponds to the first transcoded video stream, wherein the advertising module updates the advertised single ABR profile when the at least one encoding characteristic is adjusted, and a network interface configured to transmit segments of the first transcoded video stream to the client device via the network in response to requests therefor.

Abstract translation: 一种用于提供自适应比特率流的设备，其包括被配置为至少部分地基于编码特性对视频流进行代码转换的第一代码转换器，以生成第一代码转换的视频流;网络监视器，被配置为监视网络条件，包括网络带宽 网络，调整模块，被配置为使得所述代码转换器响应于所述网络条件的变化而调整所述编码特性;广告模块，被配置为向所述客户端设备通告对应于所述第一转码视频流的ABR简档，其中，所述广告 当调整所述至少一个编码特性时，模块更新所发布的单个ABR简档，以及网络接口，被配置为响应于其请求，经由网络将第一代码转换的视频流的段发送到客户端设备。