From patchwork Mon Jan 11 04:07:42 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 7999041 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: X-Original-To: patchwork-linux-sh@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id B35ED9F96D for ; Mon, 11 Jan 2016 04:08:19 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8753C20117 for ; Mon, 11 Jan 2016 04:08:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1F29120263 for ; Mon, 11 Jan 2016 04:08:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758078AbcAKEIP (ORCPT ); Sun, 10 Jan 2016 23:08:15 -0500 Received: from galahad.ideasonboard.com ([185.26.127.97]:43414 "EHLO galahad.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758199AbcAKEHq (ORCPT ); Sun, 10 Jan 2016 23:07:46 -0500 Received: from avalon.bb.dnainternet.fi (85-23-193-79.bb.dnainternet.fi [85.23.193.79]) by galahad.ideasonboard.com (Postfix) with ESMTPSA id E4971203AA; Mon, 11 Jan 2016 05:06:59 +0100 (CET) From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: linux-sh@vger.kernel.org Subject: [PATCH 1/3] v4l: Merge the YUV and YVU 4:2:0 tri-planar non-contiguous formats docs Date: Mon, 11 Jan 2016 06:07:42 +0200 Message-Id: <1452485264-11328-2-git-send-email-laurent.pinchart+renesas@ideasonboard.com> X-Mailer: git-send-email 2.4.10 In-Reply-To: <1452485264-11328-1-git-send-email-laurent.pinchart+renesas@ideasonboard.com> References: <1452485264-11328-1-git-send-email-laurent.pinchart+renesas@ideasonboard.com> Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The two formats are very similar, having two separate pages to describe them is overkill. Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil --- Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml | 26 ++-- Documentation/DocBook/media/v4l/pixfmt-yvu420m.xml | 154 --------------------- Documentation/DocBook/media/v4l/pixfmt.xml | 1 - 3 files changed, 17 insertions(+), 164 deletions(-) delete mode 100644 Documentation/DocBook/media/v4l/pixfmt-yvu420m.xml diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml index e781cc61786c..7d13fe96657d 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml @@ -1,35 +1,43 @@ - + - V4L2_PIX_FMT_YUV420M ('YM12') + V4L2_PIX_FMT_YUV420M ('YM12'), V4L2_PIX_FMT_YVU420M ('YM21') &manvol; - V4L2_PIX_FMT_YUV420M - Variation of V4L2_PIX_FMT_YUV420 - with planes non contiguous in memory. + V4L2_PIX_FMT_YUV420M + V4L2_PIX_FMT_YVU420M + Variation of V4L2_PIX_FMT_YUV420 and + V4L2_PIX_FMT_YVU420 with planes non contiguous + in memory. Description This is a multi-planar format, as opposed to a packed format. -The three components are separated into three sub- images or planes. +The three components are separated into three sub-images or planes. -The Y plane is first. The Y plane has one byte per pixel. The Cb data + The Y plane is first. The Y plane has one byte per pixel. +For V4L2_PIX_FMT_YUV420M the Cb data constitutes the second plane which is half the width and half the height of the Y plane (and of the image). Each Cb belongs to four pixels, a two-by-two square of the image. For example, Cb0 belongs to Y'00, Y'01, Y'10, and Y'11. The Cr data, just like the Cb plane, is -in the third plane. +in the third plane. + + V4L2_PIX_FMT_YVU420M is the same except +the Cr data is stored in the second plane and the Cb data in the third plane. + If the Y plane has pad bytes after each row, then the Cb and Cr planes have half as many pad bytes after their rows. In other words, two Cx rows (including padding) is exactly as long as one Y row (including padding). - V4L2_PIX_FMT_YUV420M is intended to be + V4L2_PIX_FMT_YUV420M and +V4L2_PIX_FMT_YVU420M are intended to be used only in drivers and applications that support the multi-planar API, described in . diff --git a/Documentation/DocBook/media/v4l/pixfmt-yvu420m.xml b/Documentation/DocBook/media/v4l/pixfmt-yvu420m.xml deleted file mode 100644 index 2330667907c7..000000000000 --- a/Documentation/DocBook/media/v4l/pixfmt-yvu420m.xml +++ /dev/null @@ -1,154 +0,0 @@ - - - V4L2_PIX_FMT_YVU420M ('YM21') - &manvol; - - - V4L2_PIX_FMT_YVU420M - Variation of V4L2_PIX_FMT_YVU420 - with planes non contiguous in memory. - - - - Description - - This is a multi-planar format, as opposed to a packed format. -The three components are separated into three sub-images or planes. - -The Y plane is first. The Y plane has one byte per pixel. The Cr data -constitutes the second plane which is half the width and half -the height of the Y plane (and of the image). Each Cr belongs to four -pixels, a two-by-two square of the image. For example, -Cr0 belongs to Y'00, -Y'01, Y'10, and -Y'11. The Cb data, just like the Cr plane, constitutes -the third plane. - - If the Y plane has pad bytes after each row, then the Cr -and Cb planes have half as many pad bytes after their rows. In other -words, two Cx rows (including padding) is exactly as long as one Y row -(including padding). - - V4L2_PIX_FMT_YVU420M is intended to be -used only in drivers and applications that support the multi-planar API, -described in . - - - <constant>V4L2_PIX_FMT_YVU420M</constant> 4 × 4 -pixel image - - - Byte Order. - Each cell is one byte. - - - - - - start0 + 0: - Y'00 - Y'01 - Y'02 - Y'03 - - - start0 + 4: - Y'10 - Y'11 - Y'12 - Y'13 - - - start0 + 8: - Y'20 - Y'21 - Y'22 - Y'23 - - - start0 + 12: - Y'30 - Y'31 - Y'32 - Y'33 - - - - start1 + 0: - Cr00 - Cr01 - - - start1 + 2: - Cr10 - Cr11 - - - - start2 + 0: - Cb00 - Cb01 - - - start2 + 2: - Cb10 - Cb11 - - - - - - - - - Color Sample Location. - - - - - - - 01 - 23 - - - 0 - YY - YY - - - - C - C - - - 1 - YY - YY - - - - - - 2 - YY - YY - - - - C - C - - - 3 - YY - YY - - - - - - - - - diff --git a/Documentation/DocBook/media/v4l/pixfmt.xml b/Documentation/DocBook/media/v4l/pixfmt.xml index d871245d2973..9e77ff353feb 100644 --- a/Documentation/DocBook/media/v4l/pixfmt.xml +++ b/Documentation/DocBook/media/v4l/pixfmt.xml @@ -1628,7 +1628,6 @@ information. &sub-y41p; &sub-yuv420; &sub-yuv420m; - &sub-yvu420m; &sub-yuv410; &sub-yuv422p; &sub-yuv411p;