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    • 22. 发明授权
    • Video frame alignment in adaptive bitrate streaming
    • 视频帧对齐在自适应比特率流
    • US09462270B1
    • 2016-10-04
    • US13709848
    • 2012-12-10
    • ARRIS, Inc.
    • John LanSanthana Chari
    • H04N7/12H04N11/02H04N11/04H04N19/40
    • H04N19/00472H04N21/23439H04N21/242
    • Systems, apparatus and methods can operate to generate frame aligned digital video streams encoded at different bitrates from a common digital video stream. To provide uninterrupted playback of video content when a device switches from one stream encoded at one bit rate to the same digital video stream encoded at another bitrate, the video frames of the digital video streams can be aligned. To provide for proper frame alignment between fragments representing the same frame of a digital video stream encoded at different bitrates, video encoding device(s) can mark decoded digital pictures for subsequent encoding at different bit rates when the division of a program reference clock value by the fragment period approaches an integer value.
    • 系统,装置和方法可以操作以产生以与普通数字视频流不同的比特率编码的帧对齐的数字视频流。 当设备从以一个比特率编码的一个流切换到以另一比特率编码的相同数字视频流时,提供视频内容的不间断播放,可以对准数字视频流的视频帧。 为了在表示以不同比特率编码的数字视频流的相同帧的片段之间提供适当的帧对齐,视频编码设备可以将解码的数字图像标记在不同比特率下的后续编码,当将节目参考时钟值除以 片段周期接近整数值。
    • 25. 发明授权
    • Automated video testing using QR codes embedded in a video stream
    • 使用嵌入视频流中的QR码进行自动视频测试
    • US09460503B2
    • 2016-10-04
    • US14611463
    • 2015-02-02
    • ARRIS Enterprises, Inc.
    • Gautam Babbar
    • G06K9/00G06T7/00G06K9/18G06K19/06
    • G06K9/18G06K9/00711G06K9/036G06K19/06037G06K19/06103G06K19/06112H04N17/04
    • A test system is provided for analyzing a video frame received from a device under test such as a video rendering device includes a video capture device, a matrix code reader and a video quality analyzer. The video capture device receives a video stream from a video rendering device that includes a plurality of video frames. At least one of the video frames includes a matrix code overlaid thereon. The matrix code encodes one or more test parameters specifying one or more quality tests that are to be performed on the video frame on which the matrix code is overlaid. The matrix code reader scans and decodes the matrix code. The video quality analyzer analyzes the quality of the video frame based on the one or more quality tests embodied in the matrix code and decoded by the matrix code decoding device.
    • 提供了一种用于分析从被测设备接收的视频帧的测试系统,诸如视频呈现设备,包括视频采集设备,矩阵码阅读器和视频质量分析器。 视频捕获设备从包括多个视频帧的视频呈现设备接收视频流。 至少一个视频帧包括叠加在其上的矩阵码。 矩阵码对一个或多个测试参数进行编码,该测试参数指定要在其上叠加矩阵码的视频帧上执行的一个或多个质量测试。 矩阵码阅读器扫描并解码矩阵码。 视频质量分析器基于矩阵码中体现的一个或多个质量测试并分析矩阵码解码装置解码的视频帧的质量。