From patchwork Tue Aug 25 03:52:27 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ezequiel Garcia X-Patchwork-Id: 256026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A7EFDC433E3 for ; Tue, 25 Aug 2020 03:53:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8C399208E4 for ; Tue, 25 Aug 2020 03:53:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728603AbgHYDxF (ORCPT ); Mon, 24 Aug 2020 23:53:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46288 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728068AbgHYDxE (ORCPT ); Mon, 24 Aug 2020 23:53:04 -0400 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 476A0C061574; Mon, 24 Aug 2020 20:53:04 -0700 (PDT) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: ezequiel) with ESMTPSA id 64AF6298CD5 From: Ezequiel Garcia To: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Tomasz Figa , kernel@collabora.com, Jonas Karlman , Hans Verkuil , Alexandre Courbot , Jeffrey Kardatzke , Nicolas Dufresne , Philipp Zabel , Maxime Ripard , Paul Kocialkowski , Jernej Skrabec , Ezequiel Garcia Subject: [PATCH v4 01/19] media: uapi: h264: Update reference lists Date: Tue, 25 Aug 2020 00:52:27 -0300 Message-Id: <20200825035245.594982-2-ezequiel@collabora.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200825035245.594982-1-ezequiel@collabora.com> References: <20200825035245.594982-1-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 From: Jernej Skrabec When dealing with interlaced frames, reference lists must tell if each particular reference is meant for top or bottom field. This info is currently not provided at all in the H264 related controls. Change reference lists to hold a structure, which specifies an index into the DPB array and the field/frame specification for the picture. Currently the only user of these lists is Cedrus which is just compile fixed here. Actual usage of will come in a following commit. Signed-off-by: Jernej Skrabec Signed-off-by: Ezequiel Garcia Tested-by: Jonas Karlman --- v4: * As suggested by Hans, reduce the footprint and solve the holes by converting the enum to a simple char. v3: * Rename to avoid mentioning the DPB. v2: * As pointed out by Jonas, enum v4l2_h264_dpb_reference here. --- .../media/v4l/ext-ctrls-codec.rst | 44 ++++++++++++++++++- .../staging/media/sunxi/cedrus/cedrus_h264.c | 6 +-- include/media/h264-ctrls.h | 21 ++++++--- 3 files changed, 60 insertions(+), 11 deletions(-) diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst index d0d506a444b1..df1c4fc5cb48 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst @@ -1843,10 +1843,10 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type - * - __u32 - ``slice_group_change_cycle`` - - * - __u8 + * - struct :c:type:`v4l2_h264_reference` - ``ref_pic_list0[32]`` - Reference picture list after applying the per-slice modifications - * - __u8 + * - struct :c:type:`v4l2_h264_reference` - ``ref_pic_list1[32]`` - Reference picture list after applying the per-slice modifications * - __u32 @@ -1926,6 +1926,46 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type - - ``chroma_offset[32][2]`` - +``Picture Reference`` + +.. c:type:: v4l2_h264_reference + +.. cssclass:: longtable + +.. flat-table:: struct v4l2_h264_reference + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - __u8 + - ``fields`` + - Specifies how the picture is referenced. See :ref:`Reference Fields ` + * - __u8 + - ``index`` + - Index into the :c:type:`v4l2_ctrl_h264_decode_params`.dpb array. + +.. _h264_ref_fields: + +``Reference Fields`` + +.. cssclass:: longtable + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + :widths: 1 1 2 + + * - ``V4L2_H264_TOP_FIELD_REF`` + - 0x1 + - The top field in field pair is used for short-term reference. + * - ``V4L2_H264_BOTTOM_FIELD_REF`` + - 0x2 + - The bottom field in field pair is used for short-term reference. + * - ``V4L2_H264_FRAME_REF`` + - 0x3 + - The frame (or the top/bottom fields, if it's a field pair) + is used for short-term reference. + ``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 diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c index 54ee2aa423e2..cce527bbdf86 100644 --- a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c +++ b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c @@ -166,8 +166,8 @@ static void cedrus_write_frame_list(struct cedrus_ctx *ctx, static void _cedrus_write_ref_list(struct cedrus_ctx *ctx, struct cedrus_run *run, - const u8 *ref_list, u8 num_ref, - enum cedrus_h264_sram_off sram) + const struct v4l2_h264_reference *ref_list, + u8 num_ref, enum cedrus_h264_sram_off sram) { const struct v4l2_ctrl_h264_decode_params *decode = run->h264.decode_params; struct vb2_queue *cap_q; @@ -188,7 +188,7 @@ static void _cedrus_write_ref_list(struct cedrus_ctx *ctx, int buf_idx; u8 dpb_idx; - dpb_idx = ref_list[i]; + dpb_idx = ref_list[i].index; dpb = &decode->dpb[dpb_idx]; if (!(dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)) diff --git a/include/media/h264-ctrls.h b/include/media/h264-ctrls.h index 080fd1293c42..3c613b84e5ae 100644 --- a/include/media/h264-ctrls.h +++ b/include/media/h264-ctrls.h @@ -19,6 +19,8 @@ */ #define V4L2_H264_NUM_DPB_ENTRIES 16 +#define V4L2_H264_REF_LIST_LEN (2 * V4L2_H264_NUM_DPB_ENTRIES) + /* Our pixel format isn't stable at the moment */ #define V4L2_PIX_FMT_H264_SLICE v4l2_fourcc('S', '2', '6', '4') /* H264 parsed slices */ @@ -140,6 +142,17 @@ struct v4l2_h264_pred_weight_table { #define V4L2_H264_SLICE_FLAG_DIRECT_SPATIAL_MV_PRED 0x04 #define V4L2_H264_SLICE_FLAG_SP_FOR_SWITCH 0x08 +#define V4L2_H264_TOP_FIELD_REF 0x1 +#define V4L2_H264_BOTTOM_FIELD_REF 0x2 +#define V4L2_H264_FRAME_REF 0x3 + +struct v4l2_h264_reference { + __u8 fields; + + /* Index into v4l2_ctrl_h264_decode_params.dpb[] */ + __u8 index; +}; + struct v4l2_ctrl_h264_slice_params { /* Size in bytes, including header */ __u32 size; @@ -178,12 +191,8 @@ struct v4l2_ctrl_h264_slice_params { __u8 num_ref_idx_l1_active_minus1; __u32 slice_group_change_cycle; - /* - * Entries on each list are indices into - * v4l2_ctrl_h264_decode_params.dpb[]. - */ - __u8 ref_pic_list0[32]; - __u8 ref_pic_list1[32]; + struct v4l2_h264_reference ref_pic_list0[V4L2_H264_REF_LIST_LEN]; + struct v4l2_h264_reference ref_pic_list1[V4L2_H264_REF_LIST_LEN]; __u32 flags; };