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Commit 62c3fce0 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

media: videodev.h: add PIX_FMT_FWHT for use with vicodec 



Add a new pixelformat for the vicodec software codec using the
Fast Walsh Hadamard Transform.

Signed-off-by: default avatarHans Verkuil <hansverk@cisco.com>
Acked-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent 45841a97

Documentation/media/uapi/v4l/pixfmt-compressed.rst

+7 −0
Original line number Diff line number Diff line
@@ -95,3 +95,10 @@ Compressed Formats 
      - ``V4L2_PIX_FMT_HEVC``

      - 'HEVC'

      - HEVC/H.265 video elementary stream.

    * .. _V4L2-PIX-FMT-FWHT:



      - ``V4L2_PIX_FMT_FWHT``

      - 'FWHT'

      - Video elementary stream using a codec based on the Fast Walsh Hadamard

        Transform. This codec is implemented by the vicodec ('Virtual Codec')

	driver. See the vicodec-codec.h header for more details.

drivers/media/v4l2-core/v4l2-ioctl.c

+1 −0
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@@ -1311,6 +1311,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) 
		case V4L2_PIX_FMT_VP8:		descr = "VP8"; break;

		case V4L2_PIX_FMT_VP9:		descr = "VP9"; break;

		case V4L2_PIX_FMT_HEVC:		descr = "HEVC"; break; /* aka H.265 */

		case V4L2_PIX_FMT_FWHT:		descr = "FWHT"; break; /* used in vicodec */

		case V4L2_PIX_FMT_CPIA1:	descr = "GSPCA CPiA YUV"; break;

		case V4L2_PIX_FMT_WNVA:		descr = "WNVA"; break;

		case V4L2_PIX_FMT_SN9C10X:	descr = "GSPCA SN9C10X"; break;

include/uapi/linux/videodev2.h

+1 −0
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@@ -636,6 +636,7 @@ struct v4l2_pix_format { 
#define V4L2_PIX_FMT_VP8      v4l2_fourcc('V', 'P', '8', '0') /* VP8 */

#define V4L2_PIX_FMT_VP9      v4l2_fourcc('V', 'P', '9', '0') /* VP9 */

#define V4L2_PIX_FMT_HEVC     v4l2_fourcc('H', 'E', 'V', 'C') /* HEVC aka H.265 */

#define V4L2_PIX_FMT_FWHT     v4l2_fourcc('F', 'W', 'H', 'T') /* Fast Walsh Hadamard Transform (vicodec) */



/*  Vendor-specific formats   */

#define V4L2_PIX_FMT_CPIA1    v4l2_fourcc('C', 'P', 'I', 'A') /* cpia1 YUV */