From patchwork Tue Aug 25 03:52:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ezequiel Garcia X-Patchwork-Id: 11734789 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DC830138A for ; Tue, 25 Aug 2020 03:53:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CE2F020897 for ; Tue, 25 Aug 2020 03:53:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728708AbgHYDxj (ORCPT ); Mon, 24 Aug 2020 23:53:39 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:52988 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728068AbgHYDxi (ORCPT ); Mon, 24 Aug 2020 23:53:38 -0400 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: ezequiel) with ESMTPSA id F2E64298D57 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 07/19] media: uapi: h264: Increase size of DPB entry pic_num Date: Tue, 25 Aug 2020 00:52:33 -0300 Message-Id: <20200825035245.594982-8-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 DPB entry PicNum maximum value is 2*MaxFrameNum for interlaced content (field_pic_flag=1). As specified, MaxFrameNum is 2^(log2_max_frame_num_minus4 + 4) and log2_max_frame_num_minus4 is in the range of 0 to 12, which means pic_num should be a 32-bit field. The v4l2_h264_dpb_entry struct needs to be padded to avoid a hole, which might be also useful to allow future uAPI extensions. Signed-off-by: Ezequiel Garcia Tested-by: Jonas Karlman --- .../userspace-api/media/v4l/ext-ctrls-codec.rst | 9 ++++++--- drivers/media/v4l2-core/v4l2-ctrls.c | 13 +++++++++++++ include/media/h264-ctrls.h | 3 ++- include/media/v4l2-h264.h | 2 +- 4 files changed, 22 insertions(+), 5 deletions(-) diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst index 49febae8fd0f..3808c46718ad 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst @@ -2051,15 +2051,18 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type - ``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`` + * - __u32 + - ``pic_num`` - * - __u16 - - ``pic_num`` + - ``frame_num`` - * - __u8 - ``fields`` - Specifies how the DPB entry is referenced. See :ref:`Reference Fields ` + * - __u8 + - ``reserved[5]`` + - Applications and drivers must set this to zero. * - __s32 - ``top_field_order_cnt`` - diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index 76c8dc8fb31c..b9457789fa55 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -1725,6 +1725,8 @@ static void std_log(const struct v4l2_ctrl *ctrl) #define zero_padding(s) \ memset(&(s).padding, 0, sizeof((s).padding)) +#define zero_reserved(s) \ + memset(&(s).reserved, 0, sizeof((s).reserved)) /* * Compound controls validation requires setting unused fields/flags to zero @@ -1735,6 +1737,7 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx, { struct v4l2_ctrl_mpeg2_slice_params *p_mpeg2_slice_params; struct v4l2_ctrl_vp8_frame_header *p_vp8_frame_header; + 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; @@ -1796,7 +1799,17 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx, case V4L2_CTRL_TYPE_H264_SCALING_MATRIX: case V4L2_CTRL_TYPE_H264_PRED_WEIGHTS: case V4L2_CTRL_TYPE_H264_SLICE_PARAMS: + break; + case V4L2_CTRL_TYPE_H264_DECODE_PARAMS: + p_h264_dec_params = p; + + for (i = 0; i < V4L2_H264_NUM_DPB_ENTRIES; i++) { + struct v4l2_h264_dpb_entry *dpb_entry = + &p_h264_dec_params->dpb[i]; + + zero_reserved(*dpb_entry); + } break; case V4L2_CTRL_TYPE_VP8_FRAME_HEADER: diff --git a/include/media/h264-ctrls.h b/include/media/h264-ctrls.h index 0529e75cce5f..91f6f0d43e11 100644 --- a/include/media/h264-ctrls.h +++ b/include/media/h264-ctrls.h @@ -213,9 +213,10 @@ struct v4l2_ctrl_h264_slice_params { struct v4l2_h264_dpb_entry { __u64 reference_ts; + __u32 pic_num; __u16 frame_num; - __u16 pic_num; __u8 fields; + __u8 reserved[5]; /* Note that field is indicated by v4l2_buffer.field */ __s32 top_field_order_cnt; __s32 bottom_field_order_cnt; diff --git a/include/media/v4l2-h264.h b/include/media/v4l2-h264.h index bc9ebb560ccf..1a5f26fc2a9a 100644 --- a/include/media/v4l2-h264.h +++ b/include/media/v4l2-h264.h @@ -33,7 +33,7 @@ struct v4l2_h264_reflist_builder { struct { s32 pic_order_count; int frame_num; - u16 pic_num; + u32 pic_num; u16 longterm : 1; } refs[V4L2_H264_NUM_DPB_ENTRIES]; s32 cur_pic_order_count;