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1. 发明授权

US10051269B2 Output management of prior decoded pictures at picture format transitions in bitstreams 有权
公开(公告)号：US10051269B2
公开(公告)日：2018-08-14
申请号：US15685032
申请日：2017-08-24
申请人： Cisco Technology, Inc.
发明人： Arturo A. Rodriguez , Anil Kumar Katti , Hsiang-Yeh Hwang
IPC分类号： H04N7/12 , H04N19/105 , H04N19/177 , H04N19/169 , H04N21/44 , H04N19/115
摘要： Systems and methods may be provided for determining whether or not to output the “decoded pictures yet to be output” (DPYTBO) after decoding a random access point (RAP) picture of the second of two consecutive coded video sequences in a bitstream. The DPYTBO pictures may reside in a portion of memory coupled to a video decoder. The portion of memory may correspond to the Decoder Picture Buffer (DPB) of the video decoder. The picture resolution in the bitstream is allowed to change only at the start of a CVS. The first coded picture in a coded video sequence (CVS) may be a RAP picture. The second CVS may or may not have a picture resolution that is different from the picture resolution corresponding to the first CVS.

2. 发明授权

US09602817B2 Management of decoded picture buffer at picture format transitions 有权
公开(公告)号：US09602817B2
公开(公告)日：2017-03-21
申请号：US13941386
申请日：2013-07-12
申请人： Cisco Technology, Inc.
发明人： Arturo A. Rodriguez , Anil Kumar Katti , Hsiang-Yeh Hwang
IPC分类号： H04N19/423 , H04N19/59
CPC分类号： H04N19/59 , H04N19/423
摘要： In one method embodiment a method of processing of a bitstream is disclosed. The method may include receiving by a processing device a bitstream comprising a first portion of compressed pictures encoded at a first encoding level, the first portion of compressed pictures corresponding to a first picture resolution; determining a ratio of a picture size of at least one picture of the first portion of the compressed picture and a picture size of the largest picture encoded at the first encoding level; determining a first number of picture buffers for processing of the first portion of the compressed pictures, wherein the first number of picture buffers are determined based on the determined ratio; and mapping the first number of picture buffers in a memory allocated for decoding of bitstream.

3. 发明申请

US20140003520A1 Differentiating Decodable and Non-Decodable Pictures After RAP Pictures 审中-公开
标题翻译： RAP图片后区分可解码和不可解码图片
公开(公告)号：US20140003520A1
公开(公告)日：2014-01-02
申请号：US13934210
申请日：2013-07-02
申请人： Cisco Technology, Inc.
发明人： Arturo A. Rodriguez , Anil Kumar Katti , Hsiang-Yeh Hwang
IPC分类号： H04N7/32
CPC分类号： H04N19/50 , H04N19/132 , H04N19/159 , H04N19/172 , H04N19/61 , H04N19/70
摘要： In one embodiment, a non-decodable leading picture is identified. A picture is identified as a decodable picture when the picture follows a random access picture (RAP) in decode order and precede the same RAP in output order; and the picture is not inter-predicted from a picture that precedes the RAP in decode order. The identified decodable leading picture is coded with a respectively corresponding NAL unit type in a bitstream.
摘要翻译：在一个实施例中，识别不可解码的前导画面。当图像以解码顺序跟随随机接入图像（RAP）并且以输出顺序在相同的RAP之前时，将图像标识为可解码图像; 并且图像不是以解码顺序从RAP之前的图片进行预测。所识别的可解码的前导画面以比特流中的分别对应的NAL单元类型进行编码。

4. 发明授权

US09838683B2 Support for variable number of picture buffers in decoded picture buffer 有权
公开(公告)号：US09838683B2
公开(公告)日：2017-12-05
申请号：US13939177
申请日：2013-07-10
申请人： Cisco Technology, Inc.
发明人： Arturo A. Rodriguez , Anil Kumar Katti , Hsiang-Yeh Hwang
IPC分类号： H04N7/26 , H04N19/423
CPC分类号： H04N19/42 , H04N19/423
摘要： In one method embodiment a method of processing of a bitstream is disclosed. The method may include receiving at a processing device a bitstream comprising a first portion of compressed pictures having a first picture resolution format and a second portion having a second picture resolution format during transmission over a given channel, wherein the first compressed picture of the second portion of compressed pictures is the first compressed picture in the video stream after the last compressed picture of the first portion of compressed pictures; determining by the processing device a first number of picture buffers in a decodable picture buffer (DPB) for decoding the first portion of the compressed pictures; allocating a linear memory corresponding to the first number of picture buffers for decoding of the first portion of the bitstream; determining a second number of picture decode buffers in the DPB for decoding the second portion of the compressed pictures, wherein the second number of picture decode buffers are determined based on a ratio of picture size of pictures from the first portion and the second portion; and reusing the linear buffer for decoding the second portion without deallocating and reallocating the linear memory.

5. 发明授权

US09787984B2 Management of decoded pictures in successive coded video sequences 有权
公开(公告)号：US09787984B2
公开(公告)日：2017-10-10
申请号：US15283727
申请日：2016-10-03
申请人： Cisco Technology, Inc.
发明人： Arturo A. Rodriguez , Anil Kumar Katti , Hsiang-Yeh Hwang
IPC分类号： H04N7/12 , H04N19/105 , H04N19/169 , H04N21/44 , H04N19/115 , H04N19/177
CPC分类号： H04N19/105 , H04N19/115 , H04N19/169 , H04N19/177 , H04N21/44004 , H04N21/44016
摘要： Systems and methods may be provided for determining whether or not to output the “decoded pictures yet to be output” (DPYTBO) after decoding a random access point (RAP) picture of the second of two consecutive coded video sequences in a bitstream. The DPYTBO pictures may reside in a portion of memory coupled to a video decoder. The portion of memory may correspond to the Decoder Picture Buffer (DPB) of the video decoder. The picture resolution in the bitstream is allowed to change only at the start of a CVS. The first coded picture in a coded video sequence (CVS) may be a RAP picture. The second CVS may or may not have a picture resolution that is different from the picture resolution corresponding to the first CVS.

6. 发明授权

US09584803B2 Picture output management in video applications with fixed picture rate 有权
标题翻译：具有固定图像速率的视频应用中的图像输出管理
公开(公告)号：US09584803B2
公开(公告)日：2017-02-28
申请号：US13937209
申请日：2013-07-08
申请人： Cisco Technology, Inc.
发明人： Arturo A. Rodriguez , Anil Kumar Katti , Hsiang-Yeh Hwang
IPC分类号： H04N21/435 , H04N19/134 , H04N21/44 , H04N19/172 , H04N19/132 , H04N19/156 , H04N19/44 , H04N19/31 , H04N21/4402
CPC分类号： H04N19/134 , H04N19/132 , H04N19/156 , H04N19/172 , H04N19/31 , H04N19/44 , H04N21/435 , H04N21/44004 , H04N21/440281
摘要： In one embodiment, a video bitstream is received at a video processing device. The bitstream may be decoded by the video processing device to produce a first picture data and a second picture data. The decoded first picture data and decoded second picture data may be stored in a decoded picture buffer. The first decoded picture data has a corresponding first picture rate and the second decoded picture data has a corresponding second picture rate. Auxiliary information corresponding to the bitstream may be received for the first picture data and second picture data at the video processing device. The decoded first picture data stored in the decoded picture buffer may be processed by the video processing device based on the received auxiliary information. The decoded first picture data may be processed based on the auxiliary information to produce a version of the first picture data at the second picture rate, the second picture rate being different from the first picture rate.
摘要翻译：在一个实施例中，在视频处理设备处接收视频比特流。比特流可以由视频处理设备解码以产生第一图像数据和第二图像数据。解码的第一图像数据和解码的第二图像数据可以存储在解码的图像缓冲器中。第一解码图像数据具有对应的第一图像速率，并且第二解码图像数据具有对应的第二图像速率。可以在视频处理装置处接收对应于比特流的辅助信息用于第一图像数据和第二图像数据。存储在解码图像缓冲器中的解码的第一图像数据可以由视频处理装置基于接收到的辅助信息进行处理。可以基于辅助信息来处理解码的第一图像数据，以产生第二图像速率的第一图像数据的版本，第二图像速率与第一图像速率不同。

7. 发明申请

US20140098897A1 Providing a Common Set of Parameters for Sub-Layers of Coded Video 有权
标题翻译：为编码视频子层提供一组公共参数
公开(公告)号：US20140098897A1
公开(公告)日：2014-04-10
申请号：US14050304
申请日：2013-10-09
申请人： Cisco Technology, Inc.
发明人： Arturo A. Rodriguez , Anil Kumar Katti , Hsiang-Yeh Hwang
IPC分类号： H04N7/26
CPC分类号： H04N19/31 , H04N19/463 , H04N19/70
摘要： Systems and methods disclosed herein may describe methods and systems for generating, receiving, and/or processing a bitstream comprising at least a first coded video stream (CVS), the first CVS comprising a first flag that indicates whether each of a plurality of sub-layers in a coded video sequence has a respectively corresponding set of sub-layer parameters or whether a common set of sub-layer parameters corresponds to the plural sub-layers, wherein each sub-layer corresponds to a respective temporal identifier value.
摘要翻译：本文公开的系统和方法可以描述用于生成，接收和/或处理包括至少第一编码视频流（CVS）的比特流的方法和系统，所述第一CVS包括指示多个子视频流编码视频序列中的层具有分别对应的一组子层参数，或者一组共同的子层参数是否对应于多个子层，其中每个子层对应于相应的时间标识符值。

8. 发明申请

US20140016711A1 Support for Variable Number of Picture Buffers in Decoded Picture Buffer 有权
标题翻译：支持解码图片缓冲区中可变数量的图片缓冲区
公开(公告)号：US20140016711A1
公开(公告)日：2014-01-16
申请号：US13939177
申请日：2013-07-10
申请人： Cisco Technology, Inc.
发明人： Arturo A. Rodriguez , Anil Kumar Katti , Hsiang-Yeh Hwang
IPC分类号： H04N7/26
CPC分类号： H04N19/42 , H04N19/423
摘要： In one method embodiment a method of processing of a bitstream is disclosed. The method may include receiving at a processing device a bitstream comprising a first portion of compressed pictures having a first picture resolution format and a second portion having a second picture resolution format during transmission over a given channel, wherein the first compressed picture of the second portion of compressed pictures is the first compressed picture in the video stream after the last compressed picture of the first portion of compressed pictures; determining by the processing device a first number of picture buffers in a decodable picture buffer (DPB) for decoding the first portion of the compressed pictures; allocating a linear memory corresponding to the first number of picture buffers for decoding of the first portion of the bitstream; determining a second number of picture decode buffers in the DPB for decoding the second portion of the compressed pictures, wherein the second number of picture decode buffers are determined based on a ratio of picture size of pictures from the first portion and the second portion; and reusing the linear buffer for decoding the second portion without deallocating and reallocating the linear memory.
摘要翻译：在一个方法实施例中，公开了一种处理比特流的方法。该方法可以包括在处理设备处接收包括具有第一图像分辨率格式的压缩图像的第一部分的比特流和在给定信道上的传输期间具有第二图像分辨率格式的第二部分，其中第二部分的第一压缩图像的压缩图像是压缩图像的第一部分的最后压缩图像之后的视频流中的第一个压缩图像; 由处理装置确定用于对压缩图像的第一部分进行解码的可解码图像缓冲器（DPB）中的第一数量的图像缓冲器; 分配对应于第一数量的图像缓冲器的线性存储器，用于解码比特流的第一部分; 确定DPB中的第二数量的图像解码缓冲器，用于对压缩图像的第二部分进行解码，其中基于来自第一部分和第二部分的图像的图像大小的比率来确定第二数量的图像解码缓冲器; 并且重新使用线性缓冲器来解码第二部分而不重新分配和重新分配线性存储器。

9. 发明申请

US20140010281A1 PICTURE OUTPUT MANAGEMENT IN VIDEO APPLICATIONS WITH FIXED PICTURE RATE 有权
标题翻译：具有固定图像速率的视频应用中的图像输出管理
公开(公告)号：US20140010281A1
公开(公告)日：2014-01-09
申请号：US13937209
申请日：2013-07-08
申请人： Cisco Technology, Inc.
发明人： Arturo A. Rodriguez , Anil Kumar Katti , Hsiang-Yeh Hwang
IPC分类号： H04N7/26
CPC分类号： H04N19/134 , H04N19/132 , H04N19/156 , H04N19/172 , H04N19/31 , H04N19/44 , H04N21/435 , H04N21/44004 , H04N21/440281
摘要： In one embodiment, a video bitstream is received at a video processing device. The bitstream may be decoded by the video processing device to produce a first picture data and a second picture data. The decoded first picture data and decoded second picture data may be stored in a decoded picture buffer. The first decoded picture data has a corresponding first picture rate and the second decoded picture data has a corresponding second picture rate. Auxiliary information corresponding to the bitstream may be received for the first picture data and second picture data at the video processing device. The decoded first picture data stored in the decoded picture buffer may be processed by the video processing device based on the received auxiliary information. The decoded first picture data may be processed based on the auxiliary information to produce a version of the first picture data at the second picture rate, the second picture rate being different from the first picture rate.
摘要翻译：在一个实施例中，在视频处理设备处接收视频比特流。比特流可以由视频处理设备解码以产生第一图像数据和第二图像数据。解码的第一图像数据和解码的第二图像数据可以存储在解码的图像缓冲器中。第一解码图像数据具有对应的第一图像速率，并且第二解码图像数据具有对应的第二图像速率。可以在视频处理装置处接收对应于比特流的辅助信息用于第一图像数据和第二图像数据。存储在解码图像缓冲器中的解码的第一图像数据可以由视频处理装置基于接收到的辅助信息进行处理。可以基于辅助信息来处理解码的第一图像数据，以产生第二图像速率的第一图像数据的版本，第二图像速率与第一图像速率不同。

10. 发明授权

US10798432B2 Method and system for processing HEVC coded video in broadcast and streaming applications 有权
公开(公告)号：US10798432B2
公开(公告)日：2020-10-06
申请号：US15017572
申请日：2016-02-05
申请人： Cisco Technology, Inc.
发明人： Arturo A. Rodriguez , Kevin Murray , Hsiang-Yeh Hwang , Akira Osamoto
IPC分类号： H04N19/70 , H04N19/593 , H04N19/44 , H04N19/46 , H04N19/503 , H04N21/2387 , H04N5/783 , H04N21/845 , H04N19/65 , H04N21/438 , H04N21/6587 , H04N19/423
摘要： Embodiments of the present disclosure specify methods and systems for processing a video stream. For example, a video stream may be received at a video processing device. The video stream may comprise video usability syntax elements. The video usability syntax elements may comprise at least a first flag indicative of whether HRD parameters are present for one of fixed frame rate processing or low delay mode processing. The video usability syntax elements may also comprise at least a second flag indicative of whether the video stream comprises field-coded video sequences.

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