From patchwork Wed Aug 31 11:18:20 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 1115632 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.4) with ESMTP id p7VBHtlJ005795 for ; Wed, 31 Aug 2011 11:18:00 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753928Ab1HaLR5 (ORCPT ); Wed, 31 Aug 2011 07:17:57 -0400 Received: from perceval.ideasonboard.com ([95.142.166.194]:60204 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753946Ab1HaLRz (ORCPT ); Wed, 31 Aug 2011 07:17:55 -0400 Received: from localhost.localdomain (unknown [91.178.27.34]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 70E7F35AA6; Wed, 31 Aug 2011 11:17:53 +0000 (UTC) From: Laurent Pinchart To: linux-fbdev@vger.kernel.org Cc: linux-media@vger.kernel.org, magnus.damm@gmail.com Subject: [PATCH v3 2/3] v4l: Add V4L2_PIX_FMT_NV24 and V4L2_PIX_FMT_NV42 formats Date: Wed, 31 Aug 2011 13:18:20 +0200 Message-Id: <1314789501-824-3-git-send-email-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 1.7.3.4 In-Reply-To: <1314789501-824-1-git-send-email-laurent.pinchart@ideasonboard.com> References: <1314789501-824-1-git-send-email-laurent.pinchart@ideasonboard.com> Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Wed, 31 Aug 2011 11:18:00 +0000 (UTC) NV24 and NV42 are planar YCbCr 4:4:4 and YCrCb 4:4:4 formats with a luma plane followed by an interleaved chroma plane. Signed-off-by: Laurent Pinchart --- Documentation/DocBook/media/v4l/pixfmt-nv24.xml | 129 +++++++++++++++++++++++ Documentation/DocBook/media/v4l/pixfmt.xml | 1 + include/linux/videodev2.h | 2 + 3 files changed, 132 insertions(+), 0 deletions(-) create mode 100644 Documentation/DocBook/media/v4l/pixfmt-nv24.xml diff --git a/Documentation/DocBook/media/v4l/pixfmt-nv24.xml b/Documentation/DocBook/media/v4l/pixfmt-nv24.xml new file mode 100644 index 0000000..939c803 --- /dev/null +++ b/Documentation/DocBook/media/v4l/pixfmt-nv24.xml @@ -0,0 +1,129 @@ + + + V4L2_PIX_FMT_NV24 ('NV24'), V4L2_PIX_FMT_NV42 ('NV42') + &manvol; + + + V4L2_PIX_FMT_NV24 + V4L2_PIX_FMT_NV42 + Formats with full horizontal and vertical +chroma resolutions, also known as YUV 4:4:4. One luminance and one +chrominance plane with alternating chroma samples as opposed to +V4L2_PIX_FMT_YVU420 + + + Description + + These are two-plane versions of the YUV 4:4:4 format. The three + components are separated into two sub-images or planes. The Y plane is + first, with each Y sample stored in one byte per pixel. For + V4L2_PIX_FMT_NV24, a combined CbCr plane + immediately follows the Y plane in memory. The CbCr plane has the same + width and height, in pixels, as the Y plane (and the image). Each line + contains one CbCr pair per pixel, with each Cb and Cr sample stored in + one byte. V4L2_PIX_FMT_NV42 is the same except that + the Cb and Cr samples are swapped, the CrCb plane starts with a Cr + sample. + + If the Y plane has pad bytes after each row, then the CbCr plane + has twice as many pad bytes after its rows. + + + <constant>V4L2_PIX_FMT_NV24</constant> 4 × 4 +pixel image + + + Byte Order. + Each cell is one byte. + + + + + + start + 0: + Y'00 + Y'01 + Y'02 + Y'03 + + + start + 4: + Y'10 + Y'11 + Y'12 + Y'13 + + + start + 8: + Y'20 + Y'21 + Y'22 + Y'23 + + + start + 12: + Y'30 + Y'31 + Y'32 + Y'33 + + + start + 16: + Cb00 + Cr00 + Cb01 + Cr01 + Cb02 + Cr02 + Cb03 + Cr03 + + + start + 24: + Cb10 + Cr10 + Cb11 + Cr11 + Cb12 + Cr12 + Cb13 + Cr13 + + + start + 32: + Cb20 + Cr20 + Cb21 + Cr21 + Cb22 + Cr22 + Cb23 + Cr23 + + + start + 40: + Cb30 + Cr30 + Cb31 + Cr31 + Cb32 + Cr32 + Cb33 + Cr33 + + + + + + + + + + + diff --git a/Documentation/DocBook/media/v4l/pixfmt.xml b/Documentation/DocBook/media/v4l/pixfmt.xml index 2ff6b77..aef4615 100644 --- a/Documentation/DocBook/media/v4l/pixfmt.xml +++ b/Documentation/DocBook/media/v4l/pixfmt.xml @@ -714,6 +714,7 @@ information. &sub-nv12m; &sub-nv12mt; &sub-nv16; + &sub-nv24; &sub-m420; diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index fca24cc..8225163 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -343,6 +343,8 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_NV21 v4l2_fourcc('N', 'V', '2', '1') /* 12 Y/CrCb 4:2:0 */ #define V4L2_PIX_FMT_NV16 v4l2_fourcc('N', 'V', '1', '6') /* 16 Y/CbCr 4:2:2 */ #define V4L2_PIX_FMT_NV61 v4l2_fourcc('N', 'V', '6', '1') /* 16 Y/CrCb 4:2:2 */ +#define V4L2_PIX_FMT_NV24 v4l2_fourcc('N', 'V', '2', '4') /* 24 Y/CbCr 4:4:4 */ +#define V4L2_PIX_FMT_NV42 v4l2_fourcc('N', 'V', '4', '2') /* 24 Y/CrCb 4:4:4 */ /* two non contiguous planes - one Y, one Cr + Cb interleaved */ #define V4L2_PIX_FMT_NV12M v4l2_fourcc('N', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 */