阅读说明：本技术 在保持视频质量的同时提高视频比特率 (Video bit rate enhancement while maintaining video quality ) 是由 R·杰洛萨 B·格罗德斯 S·F·斯利文斯基 Q·达默雷尔 于 2019-06-26 设计创作，主要内容包括：用于在保持低等待时间的同时优化至端点的视频流的系统、方法和软件技术。在一个实现中,流服务接收视频数据以分发到多个端点。对于每个端点,服务以给定比特率向端点流传输视频数据。在视频被流传输时,服务以附加比特率向端点发送测试数据。服务还增加测试数据的附加比特率,直到视频数据质量发生阈值下降或直到视频数据和测试数据的总比特率达到视频数据的下一可用比特率为止。如果总比特率已达到下一可用比特率,则服务有条件地从给定比特率切换到下一可用比特率。(Systems, methods, and software techniques for optimizing video streams to endpoints while maintaining low latency. In one implementation, a streaming service receives video data for distribution to multiple endpoints. For each endpoint, the service streams video data to the endpoint at a given bit rate. As the video is streamed, the service sends test data to the endpoint at the additional bit rate. The service also increases the additional bit rate of the test data until a threshold drop in video data quality occurs or until the total bit rate of the video data and the test data reaches the next available bit rate of the video data. If the total bit rate has reached the next available bit rate, the service conditionally switches from the given bit rate to the next available bit rate.)