From patchwork Fri Oct 5 00:12:25 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ezequiel Garcia X-Patchwork-Id: 10627039 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5BB4C15E2 for ; Fri, 5 Oct 2018 00:13:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4B34F28673 for ; Fri, 5 Oct 2018 00:13:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3F87D286DB; Fri, 5 Oct 2018 00:13:09 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B493428673 for ; Fri, 5 Oct 2018 00:13:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727329AbeJEHJH (ORCPT ); Fri, 5 Oct 2018 03:09:07 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:34918 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726038AbeJEHJH (ORCPT ); Fri, 5 Oct 2018 03:09:07 -0400 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: ezequiel) with ESMTPSA id 16DC127D89F From: Ezequiel Garcia To: linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-rockchip@lists.infradead.org Cc: Hans Verkuil , kernel@collabora.com, Nicolas Dufresne , Tomasz Figa , Heiko Stuebner , Rob Herring , Mark Rutland , Miouyouyou , Shunqian Zheng , Ezequiel Garcia Subject: [PATCH v7 5/6] media: Add controls for JPEG quantization tables Date: Thu, 4 Oct 2018 21:12:25 -0300 Message-Id: <20181005001226.12789-6-ezequiel@collabora.com> X-Mailer: git-send-email 2.19.0.rc2 In-Reply-To: <20181005001226.12789-1-ezequiel@collabora.com> References: <20181005001226.12789-1-ezequiel@collabora.com> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Shunqian Zheng Add V4L2_CID_JPEG_QUANTIZATION compound control to allow userspace configure the JPEG quantization tables. Signed-off-by: Shunqian Zheng Signed-off-by: Ezequiel Garcia --- .../media/uapi/v4l/extended-controls.rst | 25 +++++++++++++++++++ .../media/videodev2.h.rst.exceptions | 1 + drivers/media/v4l2-core/v4l2-ctrls.c | 8 ++++++ include/uapi/linux/v4l2-controls.h | 10 ++++++++ include/uapi/linux/videodev2.h | 1 + 5 files changed, 45 insertions(+) diff --git a/Documentation/media/uapi/v4l/extended-controls.rst b/Documentation/media/uapi/v4l/extended-controls.rst index 65a1d873196b..6effae175be1 100644 --- a/Documentation/media/uapi/v4l/extended-controls.rst +++ b/Documentation/media/uapi/v4l/extended-controls.rst @@ -3530,7 +3530,32 @@ JPEG Control IDs Specify which JPEG markers are included in compressed stream. This control is valid only for encoders. +.. _jpeg-quant-tables-control: +``V4L2_CID_JPEG_QUANTIZATION (struct)`` + Specifies the luma and chroma quantization matrices for encoding + or decoding a V4L2_PIX_FMT_JPEG_RAW format buffer. + This control supports 8-bit quantization coefficients, for + the baseline profile, as specified by :ref:`itu-t81`. + Coefficients must be set in JPEG zigzag scan order. + + +.. c:type:: struct v4l2_ctrl_jpeg_quantization + +.. cssclass:: longtable + +.. flat-table:: struct v4l2_ctrl_jpeg_quantization + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - __u8 + - ``luma_quantization_matrix[64]`` + - Sets the luma quantization table. + + * - __u8 + - ``chroma_quantization_matrix[64]`` + - Sets the chroma quantization table. .. flat-table:: :header-rows: 0 diff --git a/Documentation/media/videodev2.h.rst.exceptions b/Documentation/media/videodev2.h.rst.exceptions index 30ba0d6f546f..bd210f7d0afc 100644 --- a/Documentation/media/videodev2.h.rst.exceptions +++ b/Documentation/media/videodev2.h.rst.exceptions @@ -131,6 +131,7 @@ replace symbol V4L2_CTRL_TYPE_U32 :c:type:`v4l2_ctrl_type` replace symbol V4L2_CTRL_TYPE_U8 :c:type:`v4l2_ctrl_type` replace symbol V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS :c:type:`v4l2_ctrl_type` replace symbol V4L2_CTRL_TYPE_MPEG2_QUANTIZATION :c:type:`v4l2_ctrl_type` +replace symbol V4L2_CTRL_TYPE_JPEG_QUANTIZATION :c:type:`v4l2_ctrl_type` # V4L2 capability defines replace define V4L2_CAP_VIDEO_CAPTURE device-capabilities diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index 65e3cf838ac7..a8612ad42010 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -1001,6 +1001,7 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_JPEG_RESTART_INTERVAL: return "Restart Interval"; case V4L2_CID_JPEG_COMPRESSION_QUALITY: return "Compression Quality"; case V4L2_CID_JPEG_ACTIVE_MARKER: return "Active Markers"; + case V4L2_CID_JPEG_QUANTIZATION: return "JPEG Quantization Tables"; /* Image source controls */ /* Keep the order of the 'case's the same as in v4l2-controls.h! */ @@ -1288,6 +1289,9 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, case V4L2_CID_DETECT_MD_REGION_GRID: *type = V4L2_CTRL_TYPE_U8; break; + case V4L2_CID_JPEG_QUANTIZATION: + *type = V4L2_CTRL_TYPE_JPEG_QUANTIZATION; + break; case V4L2_CID_DETECT_MD_THRESHOLD_GRID: *type = V4L2_CTRL_TYPE_U16; break; @@ -1667,6 +1671,7 @@ static int std_validate(const struct v4l2_ctrl *ctrl, u32 idx, return 0; case V4L2_CTRL_TYPE_MPEG2_QUANTIZATION: + case V4L2_CTRL_TYPE_JPEG_QUANTIZATION: return 0; default: @@ -2249,6 +2254,9 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl, case V4L2_CTRL_TYPE_MPEG2_QUANTIZATION: elem_size = sizeof(struct v4l2_ctrl_mpeg2_quantization); break; + case V4L2_CTRL_TYPE_JPEG_QUANTIZATION: + elem_size = sizeof(struct v4l2_ctrl_jpeg_quantization); + break; default: if (type < V4L2_CTRL_COMPOUND_TYPES) elem_size = sizeof(s32); diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h index 51b095898f4b..5a8bdb732cfe 100644 --- a/include/uapi/linux/v4l2-controls.h +++ b/include/uapi/linux/v4l2-controls.h @@ -990,6 +990,16 @@ enum v4l2_jpeg_chroma_subsampling { #define V4L2_JPEG_ACTIVE_MARKER_DQT (1 << 17) #define V4L2_JPEG_ACTIVE_MARKER_DHT (1 << 18) +#define V4L2_CID_JPEG_QUANTIZATION (V4L2_CID_JPEG_CLASS_BASE + 5) +struct v4l2_ctrl_jpeg_quantization { + /* ITU-T.81 specifies two quantization coefficient precisions: + * 8-bit for baseline profile, + * 8-bit or 16-bit for extended profile. + * This control only supports the former, for the baseline profile. + */ + __u8 luma_quantization_matrix[64]; + __u8 chroma_quantization_matrix[64]; +}; /* Image source controls */ #define V4L2_CID_IMAGE_SOURCE_CLASS_BASE (V4L2_CTRL_CLASS_IMAGE_SOURCE | 0x900) diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 1c7b5df4eb83..bc4a11788f3d 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -1660,6 +1660,7 @@ enum v4l2_ctrl_type { V4L2_CTRL_TYPE_U32 = 0x0102, V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS = 0x0103, V4L2_CTRL_TYPE_MPEG2_QUANTIZATION = 0x0104, + V4L2_CTRL_TYPE_JPEG_QUANTIZATION = 0x0105, }; /* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */