Texture compression in a video decoder for efficient 2D-3D rendering

摘要

In a video decoding system, a method and system for decoding previously encoded frames of video into a compressed and uncompressed format. The uncompressed format frames may be further stored and utilized to decode additional frames of video. The compressed format frames may be further stored and provided to a display processor to be rendered with additional textures.

主权项

1. A video decoding system comprising:
a decoder configured to receive encoded video data and decode the encoded video data as raw pixel data in an uncompressed YUV format; an upsampling unit configured to upsample the raw pixel data; a converting unit configured to convert the upsampled raw pixel data into RGB pixel data; a compression unit configured to compress the RGB pixel data into a compressed texture format of data, wherein the compressed texture format is one of a Direct X texture (DXT), ATI, or Ericsson Texture Compression 1 (ETC1) format; a memory configured to store the raw pixel data in the uncompressed YUV format of data; and a display processor configured to receive the compressed texture format of data, construct a 3D scene utilizing the compressed texture format of data and output data representative of the 3D scene;
receive the uncompressed YUV format of data from the memory, and render the uncompressed YUV format of data for display,wherein the display processor outputs an image to a display device based on both the uncompressed format of data and the data representative of the 3D scene.