From patchwork Tue Mar 19 15:29:27 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 10859823 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 7404A6C2 for ; Tue, 19 Mar 2019 15:30:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 384092896F for ; Tue, 19 Mar 2019 15:30:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2817A293A3; Tue, 19 Mar 2019 15:30:22 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 3A52228F47 for ; Tue, 19 Mar 2019 15:30:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=46u86I23IIs4zd3ElCG0WAPRQ6QnhKDczIahg9rJJ1M=; b=PwhRHqMA9RW9mD tw9m1a6YRaqRlWXatHOKAVoz80/a5xjQ93KmwrpDhhmipgl76166mkHZiM/MW6lwhGcweagGMJZgT 8h76SSAwArwc/GCUQKT47MVz1+rydWvHiMVA4/vPXfFjgGkD2UArMJNh13OLNfIf9H/Z2MNncNHAU M8mO9zysWUdK+otxGDmZdh7ENe51GjhEk3ipr6RI6Cpm2JXOdm7dJkO85GD9n4xz0BUW1P8XjPXYR k/AIRYOuiwNeZ/54AQ4hqqrY9CIFkcBDvwojovY2YPyypwDwjvZTYjUr1l7zqkQY65QManEFVQpu0 1ubvckpB1XG1wNiipuEw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1h6Ggz-0006VU-Q4; Tue, 19 Mar 2019 15:30:18 +0000 Received: from relay8-d.mail.gandi.net ([217.70.183.201]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1h6GgT-0004pn-4H for linux-arm-kernel@lists.infradead.org; Tue, 19 Mar 2019 15:29:54 +0000 X-Originating-IP: 90.88.33.153 Received: from localhost (aaubervilliers-681-1-92-153.w90-88.abo.wanadoo.fr [90.88.33.153]) (Authenticated sender: maxime.ripard@bootlin.com) by relay8-d.mail.gandi.net (Postfix) with ESMTPSA id E54591BF211; Tue, 19 Mar 2019 15:29:33 +0000 (UTC) From: Maxime Ripard To: hans.verkuil@cisco.com, acourbot@chromium.org, sakari.ailus@linux.intel.com, Laurent Pinchart Subject: [PATCH v6 1/2] media: uapi: Add H264 low-level decoder API compound controls. Date: Tue, 19 Mar 2019 16:29:27 +0100 Message-Id: <9d9fe5c2dc58f9398cb6b1e9bb208640d25ae816.1553009355.git-series.maxime.ripard@bootlin.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190319_082946_091678_6187120C X-CRM114-Status: GOOD ( 13.34 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jonas@kwiboo.se, Maxime Ripard , jenskuske@gmail.com, linux-sunxi@googlegroups.com, linux-kernel@vger.kernel.org, jernej.skrabec@gmail.com, tfiga@chromium.org, Paul Kocialkowski , Chen-Yu Tsai , posciak@chromium.org, Thomas Petazzoni , Guenter Roeck , nicolas.dufresne@collabora.com, ezequiel@collabora.com, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Pawel Osciak Stateless video codecs will require both the H264 metadata and slices in order to be able to decode frames. This introduces the definitions for a new pixel format for H264 slices that have been parsed, as well as the structures used to pass the metadata from the userspace to the kernel. Co-Developped-by: Maxime Ripard Signed-off-by: Pawel Osciak Signed-off-by: Guenter Roeck Signed-off-by: Maxime Ripard Reviewed-by: Tomasz Figa --- Documentation/media/uapi/v4l/biblio.rst | 9 +- Documentation/media/uapi/v4l/ext-ctrls-codec.rst | 569 ++++++++++++++- Documentation/media/uapi/v4l/pixfmt-compressed.rst | 19 +- Documentation/media/uapi/v4l/vidioc-queryctrl.rst | 30 +- Documentation/media/videodev2.h.rst.exceptions | 5 +- drivers/media/v4l2-core/v4l2-ctrls.c | 42 +- drivers/media/v4l2-core/v4l2-ioctl.c | 1 +- include/media/h264-ctrls.h | 192 +++++- include/media/v4l2-ctrls.h | 13 +- include/uapi/linux/videodev2.h | 1 +- 10 files changed, 880 insertions(+), 1 deletion(-) create mode 100644 include/media/h264-ctrls.h diff --git a/Documentation/media/uapi/v4l/biblio.rst b/Documentation/media/uapi/v4l/biblio.rst index ec33768c055e..8f4eb8823d82 100644 --- a/Documentation/media/uapi/v4l/biblio.rst +++ b/Documentation/media/uapi/v4l/biblio.rst @@ -122,6 +122,15 @@ ITU BT.1119 :author: International Telecommunication Union (http://www.itu.ch) +.. _h264: + +ITU-T Rec. H.264 Specification (04/2017 Edition) +================================================ + +:title: ITU-T Recommendation H.264 "Advanced Video Coding for Generic Audiovisual Services" + +:author: International Telecommunication Union (http://www.itu.ch) + .. _jfif: JFIF diff --git a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst index c97fb7923be5..63659891671c 100644 --- a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst +++ b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst @@ -1343,6 +1343,575 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type - - Layer number +.. _v4l2-mpeg-h264: + +``V4L2_CID_MPEG_VIDEO_H264_SPS (struct)`` + Specifies the sequence parameter set (as extracted from the + bitstream) for the associated H264 slice data. This includes the + necessary parameters for configuring a stateless hardware decoding + pipeline for H264. The bitstream parameters are defined according + to :ref:`h264`, section 7.4.2.1.1 "Sequence Parameter Set Data + Semantics". For further documentation, refer to the above + specification, unless there is an explicit comment stating + otherwise. + + .. note:: + + This compound control is not yet part of the public kernel API and + it is expected to change. + +.. c:type:: v4l2_ctrl_h264_sps + +.. cssclass:: longtable + +.. flat-table:: struct v4l2_ctrl_h264_sps + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - __u8 + - ``profile_idc`` + - + * - __u8 + - ``constraint_set_flags`` + - See :ref:`Sequence Parameter Set Constraints Set Flags ` + * - __u8 + - ``level_idc`` + - + * - __u8 + - ``seq_parameter_set_id`` + - + * - __u8 + - ``chroma_format_idc`` + - + * - __u8 + - ``bit_depth_luma_minus8`` + - + * - __u8 + - ``bit_depth_chroma_minus8`` + - + * - __u8 + - ``log2_max_frame_num_minus4`` + - + * - __u8 + - ``pic_order_cnt_type`` + - + * - __u8 + - ``log2_max_pic_order_cnt_lsb_minus4`` + - + * - __u8 + - ``max_num_ref_frames`` + - + * - __u8 + - ``num_ref_frames_in_pic_order_cnt_cycle`` + - + * - __s32 + - ``offset_for_ref_frame[255]`` + - + * - __s32 + - ``offset_for_non_ref_pic`` + - + * - __s32 + - ``offset_for_top_to_bottom_field`` + - + * - __u16 + - ``pic_width_in_mbs_minus1`` + - + * - __u16 + - ``pic_height_in_map_units_minus1`` + - + * - __u32 + - ``flags`` + - See :ref:`Sequence Parameter Set Flags ` + +.. _h264_sps_constraints_set_flags: + +``Sequence Parameter Set Constraints Set Flags`` + +.. cssclass:: longtable + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - ``V4L2_H264_SPS_CONSTRAINT_SET0_FLAG`` + - 0x00000001 + - + * - ``V4L2_H264_SPS_CONSTRAINT_SET1_FLAG`` + - 0x00000002 + - + * - ``V4L2_H264_SPS_CONSTRAINT_SET2_FLAG`` + - 0x00000004 + - + * - ``V4L2_H264_SPS_CONSTRAINT_SET3_FLAG`` + - 0x00000008 + - + * - ``V4L2_H264_SPS_CONSTRAINT_SET4_FLAG`` + - 0x00000010 + - + * - ``V4L2_H264_SPS_CONSTRAINT_SET5_FLAG`` + - 0x00000020 + - + +.. _h264_sps_flags: + +``Sequence Parameter Set Flags`` + +.. cssclass:: longtable + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - ``V4L2_H264_SPS_FLAG_SEPARATE_COLOUR_PLANE`` + - 0x00000001 + - + * - ``V4L2_H264_SPS_FLAG_QPPRIME_Y_ZERO_TRANSFORM_BYPASS`` + - 0x00000002 + - + * - ``V4L2_H264_SPS_FLAG_DELTA_PIC_ORDER_ALWAYS_ZERO`` + - 0x00000004 + - + * - ``V4L2_H264_SPS_FLAG_GAPS_IN_FRAME_NUM_VALUE_ALLOWED`` + - 0x00000008 + - + * - ``V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY`` + - 0x00000010 + - + * - ``V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD`` + - 0x00000020 + - + * - ``V4L2_H264_SPS_FLAG_DIRECT_8X8_INFERENCE`` + - 0x00000040 + - + +``V4L2_CID_MPEG_VIDEO_H264_PPS (struct)`` + Specifies the picture parameter set (as extracted from the + bitstream) for the associated H264 slice data. This includes the + necessary parameters for configuring a stateless hardware decoding + pipeline for H264. The bitstream parameters are defined according + to :ref:`h264`, section 7.4.2.2 "Picture Parameter Set RBSP + Semantics". For further documentation, refer to the above + specification, unless there is an explicit comment stating + otherwise. + + .. note:: + + This compound control is not yet part of the public kernel API and + it is expected to change. + +.. c:type:: v4l2_ctrl_h264_pps + +.. cssclass:: longtable + +.. flat-table:: struct v4l2_ctrl_h264_pps + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - __u8 + - ``pic_parameter_set_id`` + - + * - __u8 + - ``seq_parameter_set_id`` + - + * - __u8 + - ``num_slice_groups_minus1`` + - + * - __u8 + - ``num_ref_idx_l0_default_active_minus1`` + - + * - __u8 + - ``num_ref_idx_l1_default_active_minus1`` + - + * - __u8 + - ``weighted_bipred_idc`` + - + * - __s8 + - ``pic_init_qp_minus26`` + - + * - __s8 + - ``pic_init_qs_minus26`` + - + * - __s8 + - ``chroma_qp_index_offset`` + - + * - __s8 + - ``second_chroma_qp_index_offset`` + - + * - __u16 + - ``flags`` + - See :ref:`Picture Parameter Set Flags ` + +.. _h264_pps_flags: + +``Picture Parameter Set Flags`` + +.. cssclass:: longtable + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - ``V4L2_H264_PPS_FLAG_ENTROPY_CODING_MODE`` + - 0x00000001 + - + * - ``V4L2_H264_PPS_FLAG_BOTTOM_FIELD_PIC_ORDER_IN_FRAME_PRESENT`` + - 0x00000002 + - + * - ``V4L2_H264_PPS_FLAG_WEIGHTED_PRED`` + - 0x00000004 + - + * - ``V4L2_H264_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT`` + - 0x00000008 + - + * - ``V4L2_H264_PPS_FLAG_CONSTRAINED_INTRA_PRED`` + - 0x00000010 + - + * - ``V4L2_H264_PPS_FLAG_REDUNDANT_PIC_CNT_PRESENT`` + - 0x00000020 + - + * - ``V4L2_H264_PPS_FLAG_TRANSFORM_8X8_MODE`` + - 0x00000040 + - + * - ``V4L2_H264_PPS_FLAG_PIC_SCALING_MATRIX_PRESENT`` + - 0x00000080 + - + +``V4L2_CID_MPEG_VIDEO_H264_SCALING_MATRIX (struct)`` + Specifies the scaling matrix (as extracted from the bitstream) for + the associated H264 slice data. The bitstream parameters are + defined according to :ref:`h264`, section 7.4.2.1.1.1 "Scaling + List Semantics".For further documentation, refer to the above + specification, unless there is an explicit comment stating + otherwise. + + .. note:: + + This compound control is not yet part of the public kernel API and + it is expected to change. + +.. c:type:: v4l2_ctrl_h264_scaling_matrix + +.. cssclass:: longtable + +.. flat-table:: struct v4l2_ctrl_h264_scaling_matrix + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - __u8 + - ``scaling_list_4x4[6][16]`` + - + * - __u8 + - ``scaling_list_8x8[6][64]`` + - + +``V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAMS (struct)`` + Specifies the slice parameters (as extracted from the bitstream) + for the associated H264 slice data. This includes the necessary + parameters for configuring a stateless hardware decoding pipeline + for H264. The bitstream parameters are defined according to + :ref:`h264`, section 7.4.3 "Slice Header Semantics". For further + documentation, refer to the above specification, unless there is + an explicit comment stating otherwise. + + .. note:: + + This compound control is not yet part of the public kernel API + and it is expected to change. + + This structure is expected to be passed as an array, with one + entry for each slice included in the bitstream buffer. + +.. c:type:: v4l2_ctrl_h264_slice_param + +.. cssclass:: longtable + +.. flat-table:: struct v4l2_ctrl_h264_slice_param + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - __u32 + - ``size`` + - + * - __u32 + - ``header_bit_size`` + - + * - __u16 + - ``first_mb_in_slice`` + - + * - __u8 + - ``slice_type`` + - + * - __u8 + - ``pic_parameter_set_id`` + - + * - __u8 + - ``colour_plane_id`` + - + * - __u8 + - ``redundant_pic_cnt`` + - + * - __u16 + - ``frame_num`` + - + * - __u16 + - ``idr_pic_id`` + - + * - __u16 + - ``pic_order_cnt_lsb`` + - + * - __s32 + - ``delta_pic_order_cnt_bottom`` + - + * - __s32 + - ``delta_pic_order_cnt0`` + - + * - __s32 + - ``delta_pic_order_cnt1`` + - + * - struct :c:type:`v4l2_h264_pred_weight_table` + - ``pred_weight_table`` + - + * - __u32 + - ``dec_ref_pic_marking_bit_size`` + - + * - __u32 + - ``pic_order_cnt_bit_size`` + - + * - __u8 + - ``cabac_init_idc`` + - + * - __s8 + - ``slice_qp_delta`` + - + * - __s8 + - ``slice_qs_delta`` + - + * - __u8 + - ``disable_deblocking_filter_idc`` + - + * - __s8 + - ``slice_alpha_c0_offset_div2`` + - + * - __s8 + - ``slice_beta_offset_div2`` + - + * - __u8 + - ``num_ref_idx_l0_active_minus1`` + - + * - __u8 + - ``num_ref_idx_l1_active_minus1`` + - + * - __u32 + - ``slice_group_change_cycle`` + - + * - __u8 + - ``ref_pic_list0[32]`` + - Reference picture list after applying the per-slice modifications + * - __u8 + - ``ref_pic_list1[32]`` + - Reference picture list after applying the per-slice modifications + * - __u32 + - ``flags`` + - See :ref:`Slice Parameter Flags ` + +.. _h264_slice_flags: + +``Slice Parameter Set Flags`` + +.. cssclass:: longtable + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - ``V4L2_H264_SLICE_FLAG_FIELD_PIC`` + - 0x00000001 + - + * - ``V4L2_H264_SLICE_FLAG_BOTTOM_FIELD`` + - 0x00000002 + - + * - ``V4L2_H264_SLICE_FLAG_DIRECT_SPATIAL_MV_PRED`` + - 0x00000004 + - + * - ``V4L2_H264_SLICE_FLAG_SP_FOR_SWITCH`` + - 0x00000008 + - + +``Prediction Weight Table`` + + The bitstream parameters are defined according to :ref:`h264`, + section 7.4.3.2 "Prediction Weight Table Semantics". For further + documentation, refer to the above specification, unless there is + an explicit comment stating otherwise. + +.. c:type:: v4l2_h264_pred_weight_table + +.. cssclass:: longtable + +.. flat-table:: struct v4l2_h264_pred_weight_table + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - __u16 + - ``luma_log2_weight_denom`` + - + * - __u16 + - ``chroma_log2_weight_denom`` + - + * - struct :c:type:`v4l2_h264_weight_factors` + - ``weight_factors[2]`` + - The weight factors at index 0 are the weight factors for the reference + list 0, the one at index 1 for the reference list 1. + +.. c:type:: v4l2_h264_weight_factors + +.. cssclass:: longtable + +.. flat-table:: struct v4l2_h264_weight_factors + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - __s16 + - ``luma_weight[32]`` + - + * - __s16 + - ``luma_offset[32]`` + - + * - __s16 + - ``chroma_weight[32][2]`` + - + * - __s16 + - ``chroma_offset[32][2]`` + - + +``V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS (struct)`` + Specifies the decode parameters (as extracted from the bitstream) + for the associated H264 slice data. This includes the necessary + parameters for configuring a stateless hardware decoding pipeline + for H264. The bitstream parameters are defined according to + :ref:`h264`. For further documentation, refer to the above + specification, unless there is an explicit comment stating + otherwise. + + .. note:: + + This compound control is not yet part of the public kernel API and + it is expected to change. + +.. c:type:: v4l2_ctrl_h264_decode_param + +.. cssclass:: longtable + +.. flat-table:: struct v4l2_ctrl_h264_decode_param + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - __u32 + - ``num_slices`` + - Number of slices needed to decode the current frame + * - __u32 + - ``nal_ref_idc`` + - NAL reference ID value coming from the NAL Unit header + * - __u8 + - ``ref_pic_list_p0[32]`` + - Backward reference list used by P-frames in the original bitstream order + * - __u8 + - ``ref_pic_list_b0[32]`` + - Backward reference list used by B-frames in the original bitstream order + * - __u8 + - ``ref_pic_list_b1[32]`` + - Forward reference list used by B-frames in the original bitstream order + * - __s32 + - ``top_field_order_cnt`` + - Picture Order Count for the coded top field + * - __s32 + - ``bottom_field_order_cnt`` + - Picture Order Count for the coded bottom field + * - __u32 + - ``flags`` + - See :ref:`Decode Parameters Flags ` + * - struct :c:type:`v4l2_h264_dpb_entry` + - ``dpb[16]`` + - + +.. _h264_decode_params_flags: + +``Decode Parameters Flags`` + +.. cssclass:: longtable + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - ``V4L2_H264_DECODE_PARAM_FLAG_IDR_PIC`` + - 0x00000001 + - That picture is an IDR picture + +.. c:type:: v4l2_h264_dpb_entry + +.. cssclass:: longtable + +.. flat-table:: struct v4l2_h264_dpb_entry + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - __u32 + - ``timestamp`` + - Timestamp of the V4L2 capture buffer to use as reference, used + with B-coded and P-coded frames. The timestamp refers to the + ``timestamp`` field in struct :c:type:`v4l2_buffer`. Use the + :c:func:`v4l2_timeval_to_ns()` function to convert the struct + :c:type:`timeval` in struct :c:type:`v4l2_buffer` to a __u64. + * - __u16 + - ``frame_num`` + - + * - __u16 + - ``pic_num`` + - + * - __s32 + - ``top_field_order_cnt`` + - + * - __s32 + - ``bottom_field_order_cnt`` + - + * - __u32 + - ``flags`` + - See :ref:`DPB Entry Flags ` + +.. _h264_dpb_flags: + +``DPB Entries Flags`` + +.. cssclass:: longtable + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - ``V4L2_H264_DPB_ENTRY_FLAG_VALID`` + - 0x00000001 + - The DPB entry is valid and should be considered + * - ``V4L2_H264_DPB_ENTRY_FLAG_ACTIVE`` + - 0x00000002 + - The DPB entry is currently being used as a reference frame + * - ``V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM`` + - 0x00000004 + - The DPB entry is a long term reference frame .. _v4l2-mpeg-mpeg2: diff --git a/Documentation/media/uapi/v4l/pixfmt-compressed.rst b/Documentation/media/uapi/v4l/pixfmt-compressed.rst index 2675bef3eefe..8e5cc0b10b95 100644 --- a/Documentation/media/uapi/v4l/pixfmt-compressed.rst +++ b/Documentation/media/uapi/v4l/pixfmt-compressed.rst @@ -52,6 +52,25 @@ Compressed Formats - ``V4L2_PIX_FMT_H264_MVC`` - 'M264' - H264 MVC video elementary stream. + * .. _V4L2-PIX-FMT-H264-SLICE: + + - ``V4L2_PIX_FMT_H264_SLICE_RAW`` + - 'S264' + - H264 parsed slice data, as extracted from the H264 bitstream. + This format is adapted for stateless video decoders that + implement an H264 pipeline (using the :ref:`codec` and + :ref:`media-request-api`). Metadata associated with the frame + to decode are required to be passed through the + ``V4L2_CID_MPEG_VIDEO_H264_SPS``, + ``V4L2_CID_MPEG_VIDEO_H264_PPS``, + ``V4L2_CID_MPEG_VIDEO_H264_SCALING_MATRIX``, + ``V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAMS`` and + ``V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS`` controls. See the + :ref:`associated Codec Control IDs `. + Exactly one output and one capture buffer must be provided for + use with this pixel format. The output buffer must contain the + appropriate number of macroblocks to decode a full + corresponding frame to the matching capture buffer. * .. _V4L2-PIX-FMT-H263: - ``V4L2_PIX_FMT_H263`` diff --git a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst index f824162d0ea9..bf29dc5b9758 100644 --- a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst +++ b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst @@ -443,6 +443,36 @@ See also the examples in :ref:`control`. - n/a - A struct :c:type:`v4l2_ctrl_mpeg2_quantization`, containing MPEG-2 quantization matrices for stateless video decoders. + * - ``V4L2_CTRL_TYPE_H264_SPS`` + - n/a + - n/a + - n/a + - A struct :c:type:`v4l2_ctrl_h264_sps`, containing H264 + sequence parameters for stateless video decoders. + * - ``V4L2_CTRL_TYPE_H264_PPS`` + - n/a + - n/a + - n/a + - A struct :c:type:`v4l2_ctrl_h264_pps`, containing H264 + picture parameters for stateless video decoders. + * - ``V4L2_CTRL_TYPE_H264_SCALING_MATRIX`` + - n/a + - n/a + - n/a + - A struct :c:type:`v4l2_ctrl_h264_scaling_matrix`, containing H264 + scaling matrices for stateless video decoders. + * - ``V4L2_CTRL_TYPE_H264_SLICE_PARAMS`` + - n/a + - n/a + - n/a + - A struct :c:type:`v4l2_ctrl_h264_slice_param`, containing H264 + slice parameters for stateless video decoders. + * - ``V4L2_CTRL_TYPE_H264_DECODE_PARAMS`` + - n/a + - n/a + - n/a + - A struct :c:type:`v4l2_ctrl_h264_decode_param`, containing H264 + decode parameters for stateless video decoders. .. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}| diff --git a/Documentation/media/videodev2.h.rst.exceptions b/Documentation/media/videodev2.h.rst.exceptions index 64d348e67df9..55cbe324b9fc 100644 --- a/Documentation/media/videodev2.h.rst.exceptions +++ b/Documentation/media/videodev2.h.rst.exceptions @@ -136,6 +136,11 @@ 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_H264_SPS :c:type:`v4l2_ctrl_type` +replace symbol V4L2_CTRL_TYPE_H264_PPS :c:type:`v4l2_ctrl_type` +replace symbol V4L2_CTRL_TYPE_H264_SCALING_MATRIX :c:type:`v4l2_ctrl_type` +replace symbol V4L2_CTRL_TYPE_H264_SLICE_PARAMS :c:type:`v4l2_ctrl_type` +replace symbol V4L2_CTRL_TYPE_H264_DECODE_PARAMS :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 b79d3bbd8350..8afdf5e0d312 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -828,6 +828,11 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION: return "H264 Constrained Intra Pred"; case V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET: return "H264 Chroma QP Index Offset"; + case V4L2_CID_MPEG_VIDEO_H264_SPS: return "H264 Sequence Parameter Set"; + case V4L2_CID_MPEG_VIDEO_H264_PPS: return "H264 Picture Parameter Set"; + case V4L2_CID_MPEG_VIDEO_H264_SCALING_MATRIX: return "H264 Scaling Matrix"; + case V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAMS: return "H264 Slice Parameters"; + case V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS: return "H264 Decode Parameters"; case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP: return "MPEG4 I-Frame QP Value"; case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP: return "MPEG4 P-Frame QP Value"; case V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP: return "MPEG4 B-Frame QP Value"; @@ -1303,6 +1308,21 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, case V4L2_CID_MPEG_VIDEO_MPEG2_QUANTIZATION: *type = V4L2_CTRL_TYPE_MPEG2_QUANTIZATION; break; + case V4L2_CID_MPEG_VIDEO_H264_SPS: + *type = V4L2_CTRL_TYPE_H264_SPS; + break; + case V4L2_CID_MPEG_VIDEO_H264_PPS: + *type = V4L2_CTRL_TYPE_H264_PPS; + break; + case V4L2_CID_MPEG_VIDEO_H264_SCALING_MATRIX: + *type = V4L2_CTRL_TYPE_H264_SCALING_MATRIX; + break; + case V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAMS: + *type = V4L2_CTRL_TYPE_H264_SLICE_PARAMS; + break; + case V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS: + *type = V4L2_CTRL_TYPE_H264_DECODE_PARAMS; + break; default: *type = V4L2_CTRL_TYPE_INTEGER; break; @@ -1669,6 +1689,13 @@ static int std_validate(const struct v4l2_ctrl *ctrl, u32 idx, case V4L2_CTRL_TYPE_MPEG2_QUANTIZATION: return 0; + case V4L2_CTRL_TYPE_H264_SPS: + case V4L2_CTRL_TYPE_H264_PPS: + case V4L2_CTRL_TYPE_H264_SCALING_MATRIX: + case V4L2_CTRL_TYPE_H264_SLICE_PARAMS: + case V4L2_CTRL_TYPE_H264_DECODE_PARAMS: + return 0; + default: return -EINVAL; } @@ -2249,6 +2276,21 @@ 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_H264_SPS: + elem_size = sizeof(struct v4l2_ctrl_h264_sps); + break; + case V4L2_CTRL_TYPE_H264_PPS: + elem_size = sizeof(struct v4l2_ctrl_h264_pps); + break; + case V4L2_CTRL_TYPE_H264_SCALING_MATRIX: + elem_size = sizeof(struct v4l2_ctrl_h264_scaling_matrix); + break; + case V4L2_CTRL_TYPE_H264_SLICE_PARAMS: + elem_size = sizeof(struct v4l2_ctrl_h264_slice_param); + break; + case V4L2_CTRL_TYPE_H264_DECODE_PARAMS: + elem_size = sizeof(struct v4l2_ctrl_h264_decode_param); + break; default: if (type < V4L2_CTRL_COMPOUND_TYPES) elem_size = sizeof(s32); diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index f6d663934648..43afa16b5757 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1325,6 +1325,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_PIX_FMT_H264: descr = "H.264"; break; case V4L2_PIX_FMT_H264_NO_SC: descr = "H.264 (No Start Codes)"; break; case V4L2_PIX_FMT_H264_MVC: descr = "H.264 MVC"; break; + case V4L2_PIX_FMT_H264_SLICE_RAW: descr = "H.264 Parsed Slice Data"; break; case V4L2_PIX_FMT_H263: descr = "H.263"; break; case V4L2_PIX_FMT_MPEG1: descr = "MPEG-1 ES"; break; case V4L2_PIX_FMT_MPEG2: descr = "MPEG-2 ES"; break; diff --git a/include/media/h264-ctrls.h b/include/media/h264-ctrls.h new file mode 100644 index 000000000000..6de1b88f71c7 --- /dev/null +++ b/include/media/h264-ctrls.h @@ -0,0 +1,192 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * These are the H.264 state controls for use with stateless H.264 + * codec drivers. + * + * It turns out that these structs are not stable yet and will undergo + * more changes. So keep them private until they are stable and ready to + * become part of the official public API. + */ + +#ifndef _H264_CTRLS_H_ +#define _H264_CTRLS_H_ + +/* + * This is put insanely high to avoid conflicting with controls that + * would be added during the phase where those controls are not + * stable. It should be fixed eventually. + */ +#define V4L2_CID_MPEG_VIDEO_H264_SPS (V4L2_CID_MPEG_BASE+1000) +#define V4L2_CID_MPEG_VIDEO_H264_PPS (V4L2_CID_MPEG_BASE+1001) +#define V4L2_CID_MPEG_VIDEO_H264_SCALING_MATRIX (V4L2_CID_MPEG_BASE+1002) +#define V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAMS (V4L2_CID_MPEG_BASE+1003) +#define V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS (V4L2_CID_MPEG_BASE+1004) + +/* enum v4l2_ctrl_type type values */ +#define V4L2_CTRL_TYPE_H264_SPS 0x0105 +#define V4L2_CTRL_TYPE_H264_PPS 0x0106 +#define V4L2_CTRL_TYPE_H264_SCALING_MATRIX 0x0107 +#define V4L2_CTRL_TYPE_H264_SLICE_PARAMS 0x0108 +#define V4L2_CTRL_TYPE_H264_DECODE_PARAMS 0x0109 + +#define V4L2_H264_SPS_CONSTRAINT_SET0_FLAG 0x01 +#define V4L2_H264_SPS_CONSTRAINT_SET1_FLAG 0x02 +#define V4L2_H264_SPS_CONSTRAINT_SET2_FLAG 0x04 +#define V4L2_H264_SPS_CONSTRAINT_SET3_FLAG 0x08 +#define V4L2_H264_SPS_CONSTRAINT_SET4_FLAG 0x10 +#define V4L2_H264_SPS_CONSTRAINT_SET5_FLAG 0x20 + +#define V4L2_H264_SPS_FLAG_SEPARATE_COLOUR_PLANE 0x01 +#define V4L2_H264_SPS_FLAG_QPPRIME_Y_ZERO_TRANSFORM_BYPASS 0x02 +#define V4L2_H264_SPS_FLAG_DELTA_PIC_ORDER_ALWAYS_ZERO 0x04 +#define V4L2_H264_SPS_FLAG_GAPS_IN_FRAME_NUM_VALUE_ALLOWED 0x08 +#define V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY 0x10 +#define V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD 0x20 +#define V4L2_H264_SPS_FLAG_DIRECT_8X8_INFERENCE 0x40 + +struct v4l2_ctrl_h264_sps { + __u8 profile_idc; + __u8 constraint_set_flags; + __u8 level_idc; + __u8 seq_parameter_set_id; + __u8 chroma_format_idc; + __u8 bit_depth_luma_minus8; + __u8 bit_depth_chroma_minus8; + __u8 log2_max_frame_num_minus4; + __u8 pic_order_cnt_type; + __u8 log2_max_pic_order_cnt_lsb_minus4; + __u8 max_num_ref_frames; + __u8 num_ref_frames_in_pic_order_cnt_cycle; + __s32 offset_for_ref_frame[255]; + __s32 offset_for_non_ref_pic; + __s32 offset_for_top_to_bottom_field; + __u16 pic_width_in_mbs_minus1; + __u16 pic_height_in_map_units_minus1; + __u32 flags; +}; + +#define V4L2_H264_PPS_FLAG_ENTROPY_CODING_MODE 0x0001 +#define V4L2_H264_PPS_FLAG_BOTTOM_FIELD_PIC_ORDER_IN_FRAME_PRESENT 0x0002 +#define V4L2_H264_PPS_FLAG_WEIGHTED_PRED 0x0004 +#define V4L2_H264_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT 0x0008 +#define V4L2_H264_PPS_FLAG_CONSTRAINED_INTRA_PRED 0x0010 +#define V4L2_H264_PPS_FLAG_REDUNDANT_PIC_CNT_PRESENT 0x0020 +#define V4L2_H264_PPS_FLAG_TRANSFORM_8X8_MODE 0x0040 +#define V4L2_H264_PPS_FLAG_PIC_SCALING_MATRIX_PRESENT 0x0080 + +struct v4l2_ctrl_h264_pps { + __u8 pic_parameter_set_id; + __u8 seq_parameter_set_id; + __u8 num_slice_groups_minus1; + __u8 num_ref_idx_l0_default_active_minus1; + __u8 num_ref_idx_l1_default_active_minus1; + __u8 weighted_bipred_idc; + __s8 pic_init_qp_minus26; + __s8 pic_init_qs_minus26; + __s8 chroma_qp_index_offset; + __s8 second_chroma_qp_index_offset; + __u16 flags; +}; + +struct v4l2_ctrl_h264_scaling_matrix { + __u8 scaling_list_4x4[6][16]; + __u8 scaling_list_8x8[6][64]; +}; + +struct v4l2_h264_weight_factors { + __s16 luma_weight[32]; + __s16 luma_offset[32]; + __s16 chroma_weight[32][2]; + __s16 chroma_offset[32][2]; +}; + +struct v4l2_h264_pred_weight_table { + __u16 luma_log2_weight_denom; + __u16 chroma_log2_weight_denom; + struct v4l2_h264_weight_factors weight_factors[2]; +}; + +#define V4L2_H264_SLICE_TYPE_P 0 +#define V4L2_H264_SLICE_TYPE_B 1 +#define V4L2_H264_SLICE_TYPE_I 2 +#define V4L2_H264_SLICE_TYPE_SP 3 +#define V4L2_H264_SLICE_TYPE_SI 4 + +#define V4L2_H264_SLICE_FLAG_FIELD_PIC 0x01 +#define V4L2_H264_SLICE_FLAG_BOTTOM_FIELD 0x02 +#define V4L2_H264_SLICE_FLAG_DIRECT_SPATIAL_MV_PRED 0x04 +#define V4L2_H264_SLICE_FLAG_SP_FOR_SWITCH 0x08 + +struct v4l2_ctrl_h264_slice_param { + /* Size in bytes, including header */ + __u32 size; + /* Offset in bits to slice_data() from the beginning of this slice. */ + __u32 header_bit_size; + + __u16 first_mb_in_slice; + __u8 slice_type; + __u8 pic_parameter_set_id; + __u8 colour_plane_id; + __u8 redundant_pic_cnt; + __u16 frame_num; + __u16 idr_pic_id; + __u16 pic_order_cnt_lsb; + __s32 delta_pic_order_cnt_bottom; + __s32 delta_pic_order_cnt0; + __s32 delta_pic_order_cnt1; + + struct v4l2_h264_pred_weight_table pred_weight_table; + /* Size in bits of dec_ref_pic_marking() syntax element. */ + __u32 dec_ref_pic_marking_bit_size; + /* Size in bits of pic order count syntax. */ + __u32 pic_order_cnt_bit_size; + + __u8 cabac_init_idc; + __s8 slice_qp_delta; + __s8 slice_qs_delta; + __u8 disable_deblocking_filter_idc; + __s8 slice_alpha_c0_offset_div2; + __s8 slice_beta_offset_div2; + __u8 num_ref_idx_l0_active_minus1; + __u8 num_ref_idx_l1_active_minus1; + __u32 slice_group_change_cycle; + + /* + * Entries on each list are indices into + * v4l2_ctrl_h264_decode_param.dpb[]. + */ + __u8 ref_pic_list0[32]; + __u8 ref_pic_list1[32]; + + __u32 flags; +}; + +#define V4L2_H264_DPB_ENTRY_FLAG_VALID 0x01 +#define V4L2_H264_DPB_ENTRY_FLAG_ACTIVE 0x02 +#define V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM 0x04 + +struct v4l2_h264_dpb_entry { + __u64 timestamp; + __u16 frame_num; + __u16 pic_num; + /* Note that field is indicated by v4l2_buffer.field */ + __s32 top_field_order_cnt; + __s32 bottom_field_order_cnt; + __u32 flags; /* V4L2_H264_DPB_ENTRY_FLAG_* */ +}; + +#define V4L2_H264_DECODE_PARAM_FLAG_IDR_PIC 0x01 + +struct v4l2_ctrl_h264_decode_param { + __u32 num_slices; + __u32 nal_ref_idc; + __u8 ref_pic_list_p0[32]; + __u8 ref_pic_list_b0[32]; + __u8 ref_pic_list_b1[32]; + __s32 top_field_order_cnt; + __s32 bottom_field_order_cnt; + __u32 flags; /* V4L2_H264_DECODE_PARAM_FLAG_* */ + struct v4l2_h264_dpb_entry dpb[16]; +}; + +#endif diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index e5cae37ced2d..88134951bd30 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -23,10 +23,11 @@ #include /* - * Include the mpeg2 stateless codec compound control definitions. + * Include the stateless codec compound control definitions. * This will move to the public headers once this API is fully stable. */ #include +#include /* forward references */ struct file; @@ -49,6 +50,11 @@ struct poll_table_struct; * @p_char: Pointer to a string. * @p_mpeg2_slice_params: Pointer to a MPEG2 slice parameters structure. * @p_mpeg2_quantization: Pointer to a MPEG2 quantization data structure. + * @p_h264_sps: Pointer to a struct v4l2_ctrl_h264_sps. + * @p_h264_pps: Pointer to a struct v4l2_ctrl_h264_pps. + * @p_h264_scaling_matrix: Pointer to a struct v4l2_ctrl_h264_scaling_matrix. + * @p_h264_slice_param: Pointer to a struct v4l2_ctrl_h264_slice_param. + * @p_h264_decode_param: Pointer to a struct v4l2_ctrl_h264_decode_param. * @p: Pointer to a compound value. */ union v4l2_ctrl_ptr { @@ -60,6 +66,11 @@ union v4l2_ctrl_ptr { char *p_char; struct v4l2_ctrl_mpeg2_slice_params *p_mpeg2_slice_params; struct v4l2_ctrl_mpeg2_quantization *p_mpeg2_quantization; + struct v4l2_ctrl_h264_sps *p_h264_sps; + struct v4l2_ctrl_h264_pps *p_h264_pps; + struct v4l2_ctrl_h264_scaling_matrix *p_h264_scaling_matrix; + struct v4l2_ctrl_h264_slice_param *p_h264_slice_param; + struct v4l2_ctrl_h264_decode_param *p_h264_decode_param; void *p; }; diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 1db220da3bcc..dd5da9802d2c 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -657,6 +657,7 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_H264 v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */ #define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1') /* H264 without start codes */ #define V4L2_PIX_FMT_H264_MVC v4l2_fourcc('M', '2', '6', '4') /* H264 MVC */ +#define V4L2_PIX_FMT_H264_SLICE_RAW v4l2_fourcc('S', '2', '6', '4') /* H264 parsed slices */ #define V4L2_PIX_FMT_H263 v4l2_fourcc('H', '2', '6', '3') /* H263 */ #define V4L2_PIX_FMT_MPEG1 v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES */ #define V4L2_PIX_FMT_MPEG2 v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES */