From patchwork Fri Jul 8 16:21:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 588796 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8A5BBCCA47B for ; Fri, 8 Jul 2022 16:24:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239101AbiGHQYX (ORCPT ); Fri, 8 Jul 2022 12:24:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239081AbiGHQWa (ORCPT ); Fri, 8 Jul 2022 12:22:30 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 614A245045; Fri, 8 Jul 2022 09:22:24 -0700 (PDT) Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:3cab:61a1:2b1f:896b]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by madras.collabora.co.uk (Postfix) with ESMTPSA id A30726601A31; Fri, 8 Jul 2022 17:22:22 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1657297343; bh=xF9ZvP1OxRF2VHnAqJEtN3YP6ikHBpHFskEbXri9mr8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=USqvJMAgrziXv9JLuO7i9L5QmXFddMFbZELK7wVq/Kxq4WYPF3mhoOe0XzAMqCYtS DgqxjowdxNf1pi+SOgNMC02gMdNLtTa1u6ktUymqGI7d6/hm7q6V1bepRBXL6gg01t q5m6HoZ7v/xOJiu7vC79V/xIb0begc54z0/miDLM5Xj1f6/Pt8x83LxKH7YSxWDR8/ WGCNu/tMAetOYGphN56iFUgLSFvcyFTTbv2bgoFDOMbjbndWBiLm9ezno/DpBd7yPz UjnyUT574vDELREDkR1979RX442jrASEMzzkvhaRqj8oF4KxGu4/dTcmy/s4I4O4yP Quqd/81NYPXSQ== From: Benjamin Gaignard To: mchehab@kernel.org, hverkuil@xs4all.nl, ezequiel@vanguardiasur.com.ar, p.zabel@pengutronix.de, gregkh@linuxfoundation.org, mripard@kernel.org, paul.kocialkowski@bootlin.com, wens@csie.org, jernej.skrabec@gmail.com, samuel@sholland.org, nicolas.dufresne@collabora.com, andrzej.p@collabora.com Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, kernel@collabora.com, Benjamin Gaignard Subject: [PATCH v13 15/17] media: uapi: HEVC: fix padding in v4l2 control structures Date: Fri, 8 Jul 2022 18:21:54 +0200 Message-Id: <20220708162156.815772-16-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220708162156.815772-1-benjamin.gaignard@collabora.com> References: <20220708162156.815772-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Fix padding where needed to remove holes Signed-off-by: Benjamin Gaignard Acked-by: Nicolas Dufresne Tested-by: Jernej Skrabec Reviewed-by: Ezequiel Garcia --- .../media/v4l/ext-ctrls-codec.rst | 6 ++--- drivers/media/v4l2-core/v4l2-ctrls-core.c | 15 ------------- include/media/hevc-ctrls.h | 22 ++++++++++++------- 3 files changed, 17 insertions(+), 26 deletions(-) diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst index c05c5553f0e3..73b347acb704 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst @@ -3514,9 +3514,6 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - * - __u8 - ``num_active_dpb_entries`` - The number of entries in ``dpb``. - * - struct :c:type:`v4l2_hevc_dpb_entry` - - ``dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]`` - - The decoded picture buffer, for meta-data about reference frames. * - __u8 - ``num_poc_st_curr_before`` - The number of reference pictures in the short-term set that come before @@ -3540,6 +3537,9 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - - ``poc_lt_curr[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]`` - PocLtCurr as described in section 8.3.2 "Decoding process for reference picture set": provides the index of the long term references in DPB array. + * - struct :c:type:`v4l2_hevc_dpb_entry` + - ``dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]`` + - The decoded picture buffer, for meta-data about reference frames. * - __u64 - ``flags`` - See :ref:`Decode Parameters Flags ` diff --git a/drivers/media/v4l2-core/v4l2-ctrls-core.c b/drivers/media/v4l2-core/v4l2-ctrls-core.c index c5c5407584ff..1f85828d6694 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls-core.c +++ b/drivers/media/v4l2-core/v4l2-ctrls-core.c @@ -536,7 +536,6 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx, struct v4l2_ctrl_h264_decode_params *p_h264_dec_params; struct v4l2_ctrl_hevc_sps *p_hevc_sps; struct v4l2_ctrl_hevc_pps *p_hevc_pps; - struct v4l2_ctrl_hevc_slice_params *p_hevc_slice_params; struct v4l2_ctrl_hdr10_mastering_display *p_hdr10_mastering; struct v4l2_ctrl_hevc_decode_params *p_hevc_decode_params; struct v4l2_area *area; @@ -814,8 +813,6 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx, p_hevc_pps->pps_beta_offset_div2 = 0; p_hevc_pps->pps_tc_offset_div2 = 0; } - - zero_padding(*p_hevc_pps); break; case V4L2_CTRL_TYPE_HEVC_DECODE_PARAMS: @@ -824,21 +821,9 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx, if (p_hevc_decode_params->num_active_dpb_entries > V4L2_HEVC_DPB_ENTRIES_NUM_MAX) return -EINVAL; - - for (i = 0; i < p_hevc_decode_params->num_active_dpb_entries; - i++) { - struct v4l2_hevc_dpb_entry *dpb_entry = - &p_hevc_decode_params->dpb[i]; - - zero_padding(*dpb_entry); - } break; case V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS: - p_hevc_slice_params = p; - - zero_padding(p_hevc_slice_params->pred_weight_table); - zero_padding(*p_hevc_slice_params); break; case V4L2_CTRL_TYPE_HDR10_CLL_INFO: diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h index 9239e8b649e0..7358cbfc3e4d 100644 --- a/include/media/hevc-ctrls.h +++ b/include/media/hevc-ctrls.h @@ -105,6 +105,7 @@ enum v4l2_stateless_hevc_start_code { * @chroma_format_idc: specifies the chroma sampling * @sps_max_sub_layers_minus1: this value plus 1 specifies the maximum number * of temporal sub-layers + * @reserved: padding field. Should be zeroed by applications. * @flags: see V4L2_HEVC_SPS_FLAG_{} */ struct v4l2_ctrl_hevc_sps { @@ -133,6 +134,7 @@ struct v4l2_ctrl_hevc_sps { __u8 chroma_format_idc; __u8 sps_max_sub_layers_minus1; + __u8 reserved[6]; __u64 flags; }; @@ -192,6 +194,7 @@ struct v4l2_ctrl_hevc_sps { * divided by 2 * @log2_parallel_merge_level_minus2: this value plus 2 specifies the value of * the variable Log2ParMrgLevel + * @reserved: padding field. Should be zeroed by applications. * @flags: see V4L2_HEVC_PPS_FLAG_{} */ struct v4l2_ctrl_hevc_pps { @@ -210,8 +213,7 @@ struct v4l2_ctrl_hevc_pps { __s8 pps_beta_offset_div2; __s8 pps_tc_offset_div2; __u8 log2_parallel_merge_level_minus2; - - __u8 padding[4]; + __u8 reserved; __u64 flags; }; @@ -239,14 +241,15 @@ struct v4l2_ctrl_hevc_pps { * @timestamp: timestamp of the V4L2 capture buffer to use as reference. * @flags: long term flag for the reference frame * @field_pic: whether the reference is a field picture or a frame. + * @reserved: padding field. Should be zeroed by applications. * @pic_order_cnt_val: the picture order count of the reference. */ struct v4l2_hevc_dpb_entry { __u64 timestamp; __u8 flags; __u8 field_pic; + __u16 reserved; __s32 pic_order_cnt_val; - __u8 padding[2]; }; /** @@ -285,8 +288,6 @@ struct v4l2_hevc_pred_weight_table { __s8 delta_chroma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]; __s8 chroma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]; - __u8 padding[6]; - __u8 luma_log2_weight_denom; __s8 delta_chroma_log2_weight_denom; }; @@ -339,6 +340,7 @@ struct v4l2_hevc_pred_weight_table { * @slice_tc_offset_div2: specify the deblocking parameter offsets for tC divided by 2 * @pic_struct: indicates whether a picture should be displayed as a frame or as one or * more fields + * @reserved0: padding field. Should be zeroed by applications. * @slice_segment_addr: specifies the address of the first coding tree block in * the slice segment * @ref_idx_l0: the list of L0 reference elements as indices in the DPB @@ -349,6 +351,7 @@ struct v4l2_hevc_pred_weight_table { * picture include in the SPS * @pred_weight_table: the prediction weight coefficients for inter-picture * prediction + * @reserved1: padding field. Should be zeroed by applications. * @flags: see V4L2_HEVC_SLICE_PARAMS_FLAG_{} */ struct v4l2_ctrl_hevc_slice_params { @@ -379,17 +382,18 @@ struct v4l2_ctrl_hevc_slice_params { /* ISO/IEC 23008-2, ITU-T Rec. H.265: Picture timing SEI message */ __u8 pic_struct; + __u8 reserved0[3]; /* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */ __u32 slice_segment_addr; __u8 ref_idx_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]; __u8 ref_idx_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]; __u16 short_term_ref_pic_set_size; __u16 long_term_ref_pic_set_size; - __u8 padding; /* ISO/IEC 23008-2, ITU-T Rec. H.265: Weighted prediction parameter */ struct v4l2_hevc_pred_weight_table pred_weight_table; + __u8 reserved1[2]; __u64 flags; }; @@ -406,7 +410,6 @@ struct v4l2_ctrl_hevc_slice_params { * @long_term_ref_pic_set_size: specifies the size of long-term reference * pictures set include in the SPS of the first slice * @num_active_dpb_entries: the number of entries in dpb - * @dpb: the decoded picture buffer, for meta-data about reference frames * @num_poc_st_curr_before: the number of reference pictures in the short-term * set that come before the current frame * @num_poc_st_curr_after: the number of reference pictures in the short-term @@ -417,6 +420,8 @@ struct v4l2_ctrl_hevc_slice_params { * @poc_st_curr_after: provides the index of the short term after references * in DPB array * @poc_lt_curr: provides the index of the long term references in DPB array + * @reserved: padding field. Should be zeroed by applications. + * @dpb: the decoded picture buffer, for meta-data about reference frames * @flags: see V4L2_HEVC_DECODE_PARAM_FLAG_{} */ struct v4l2_ctrl_hevc_decode_params { @@ -424,13 +429,14 @@ struct v4l2_ctrl_hevc_decode_params { __u16 short_term_ref_pic_set_size; __u16 long_term_ref_pic_set_size; __u8 num_active_dpb_entries; - struct v4l2_hevc_dpb_entry dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]; __u8 num_poc_st_curr_before; __u8 num_poc_st_curr_after; __u8 num_poc_lt_curr; __u8 poc_st_curr_before[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]; __u8 poc_st_curr_after[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]; __u8 poc_lt_curr[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]; + __u8 reserved[4]; + struct v4l2_hevc_dpb_entry dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]; __u64 flags; };