Authored by Jason Lee
Flash Player 15 Beta introduces the VideoTexture object, which allows hardware decoded video to be used in Stage3D content. With prior versions of Flash Player, the use of video in Stage3D required the use of the Video object (which is not hardware accelerated), copying of video frame to a BitmapData object, and loading of the data onto the GPU.
With the VideoTexture object introduced in Flash Player 15 Beta, the decode, conversion from YUV to RGB, and texture loading can be completely moved to the GPU. The textures provided by the VideoTexture object can be used as rectangular, RGB, no mipmap textures in rendering of a Stage3D scene; and can be treated as ARGB texture by the shaders (i.e., the AGAL shaders do not need to provide YUV->RGB conversion). Thus, standard shaders used with static images can also be used without providing a functionality for YUV-> RGB conversion.