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    • 6. 发明授权
    • System and method for communicating video data in a digital media device
    • 用于在数字媒体设备中传送视频数据的系统和方法
    • US06466939B1
    • 2002-10-15
    • US09539365
    • 2000-03-31
    • Angela C. LaiKevin R. Meier
    • Angela C. LaiKevin R. Meier
    • G06F1730
    • H04N21/42653H04N21/23406H04N21/44004H04N21/4431H04N21/4435Y10S707/99942Y10S707/99945
    • A system for communicating video data in a digital media device includes an application layer having one or more applications and further includes a device driver layer associated with an operating system and video hardware of the digital media device. A video abstraction layer (VAL) coupled to the application layer and to the device driver layer includes a send queue containing ordered references to buffers that are each capable of containing video data. The VAL also includes a receive queue containing ordered references to buffers each capable of containing video data. The send queue and receive queue are used in substantially the same manner for both incoming video data received into the digital media device and outgoing video data to be communicated from the digital media device.
    • 用于在数字媒体设备中传送视频数据的系统包括具有一个或多个应用的​​应用层,并且还包括与数字媒体设备的操作系统和视频硬件相关联的设备驱动器层。 耦合到应用层和设备驱动器层的视频抽象层(VAL)包括发送队列,其包含对能够包含视频数据的缓冲器的有序引用。 VAL还包括一个接收队列,其中包含对每个能够包含视频数据的缓冲器的有序引用。 发送队列和接收队列以基本上相同的方式用于接收到数字媒体设备中的输入视频数据和要从数字媒体设备传送的传出视频数据。