Linux vicodec (Virtual Codec) test driver in Linux implements FWHT. FWHT was designed to be fast and simple and to have characteristics of other video codecs and therefore face similar issues [1].
https://en.wikipedia.org/wiki/Fast_Walsh%E2%80%93Hadamard_transform Signed-off-by: Peter Griffin <peter.grif...@linaro.org> --- include/standard-headers/linux/virtio_video.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/standard-headers/linux/virtio_video.h b/include/standard-headers/linux/virtio_video.h index 16b5f642a9..3b517d50c4 100644 --- a/include/standard-headers/linux/virtio_video.h +++ b/include/standard-headers/linux/virtio_video.h @@ -75,6 +75,7 @@ enum virtio_video_format { VIRTIO_VIDEO_FORMAT_HEVC, /* HEVC aka H.265*/ VIRTIO_VIDEO_FORMAT_VP8, /* VP8 */ VIRTIO_VIDEO_FORMAT_VP9, /* VP9 */ + VIRTIO_VIDEO_FORMAT_FWHT, /* FWHT used by vicodec */ VIRTIO_VIDEO_FORMAT_CODED_MAX = VIRTIO_VIDEO_FORMAT_VP9, }; -- 2.25.1
