glBufferData(GL_PIXEL_UNPACK_BUFFER_ARB, width * height * 2, uyvy, GL_STREAM_DRAW);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
glBufferData(GL_PIXEL_UNPACK_BUFFER_ARB, width * height * 2, uyvy, GL_STREAM_DRAW);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0);