From patchwork Tue Apr 26 12:57:42 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Dufresne X-Patchwork-Id: 12827102 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EF8BBC433F5 for ; Tue, 26 Apr 2022 13:07:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=H2gfJ/evrAugqn7UMYm21zAWmqSF0+aVKhXyFOfRbo4=; b=QfZEtqFLpELeqe qW511NPri7S0bphGqXNGjJHcF/DA358s6b1Qdt6rjjj5HPiju+AwfTlkM6kZYmINq6UrJmFifxsnx Xhzwc7P50DPKt7tkwXu/dfHnNnzjOfT9Kh7qcnn03sS/q0BhvNOjX3BZqMd+rj9lycSghmOPkejQm 9g/xE0M0QtEIkCDPMG5mxE3CNbVwwHee2gs+W2f6ba/SMIxFYkUH69+mIzzSis6CYBednwS1E8poV YgAOIz/7WtjpJn218amzThvbw5mvLUR3l4DOXbLnLta5xjQQzu+rFIarRczSo3W4V0kcU+YwRfKGh pctcI7c6MkO2bes9BnkQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1njKuy-00ETXo-Vb; Tue, 26 Apr 2022 13:07:49 +0000 Received: from bhuna.collabora.co.uk ([46.235.227.227]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1njKlw-00EPCb-St for linux-rockchip@lists.infradead.org; Tue, 26 Apr 2022 12:58:32 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: nicolas) with ESMTPSA id 67CE51F4398D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1650977907; bh=0J+46psvSTuyS1wejcCrG3atoNuCwZAAyNkbTjDMFsU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aeiO2ufbvhFNYb7zVWgxzT+dtqF3tl7RyjAsaf8KVsW60NFm4QkISfL9a12zsEYle jA5BgytAjoyMdKIVIBVxxaJCwyvW+Doi+iLHXdGa8ZOsDMwxLXq5Dw27QRO9EyRnCu i6IPmh8a6W26TEeWalrLgOoVyFvNBD6Na9c+tWGE90XED+IfZGudpMYlKko4q1dVuw TwKI2T194dTmEohVKjaaRS5uwYzF/3zpslBwroYj1IByMcEFDoidltpPOkXEV2wFgH FqpjjuNIEWv4xLOOb2EcmI0gKiO7+Gg23oICPHN2qO5sv8vIjpnkJ5WaHUmnn9qt0j poaAaDreu9YVQ== From: Nicolas Dufresne To: Ezequiel Garcia , Mauro Carvalho Chehab , Greg Kroah-Hartman Cc: nicolas@ndufresne.ca, Jonas Karlman , linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v4 16/24] media: rkvdec: h264: Validate and use pic width and height in mbs Date: Tue, 26 Apr 2022 08:57:42 -0400 Message-Id: <20220426125751.108293-17-nicolas.dufresne@collabora.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220426125751.108293-1-nicolas.dufresne@collabora.com> References: <20220426125751.108293-1-nicolas.dufresne@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220426_055829_297511_FB89AE9E X-CRM114-Status: GOOD ( 22.10 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org From: Jonas Karlman The width and height in macroblocks is currently configured based on OUTPUT buffer resolution, this works for frame pictures but can cause issues for field pictures. When frame_mbs_only_flag is 0 the height in mbs should be height of the field instead of height of frame. Validate pic_width_in_mbs_minus1 and pic_height_in_map_units_minus1 against OUTPUT buffer resolution and use these values to configure HW. The validation is happening in both try_ctrt() and start() since it is otherwise possible to trick the driver during initialization by changing the OUTPUT format after having set a valid control. Signed-off-by: Jonas Karlman Signed-off-by: Nicolas Dufresne Reviewed-by: Ezequiel Garcia --- drivers/staging/media/rkvdec/rkvdec-h264.c | 81 +++++++++++++++++----- 1 file changed, 62 insertions(+), 19 deletions(-) diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c index 0dcbcb1bac80..d5ac0285f36f 100644 --- a/drivers/staging/media/rkvdec/rkvdec-h264.c +++ b/drivers/staging/media/rkvdec/rkvdec-h264.c @@ -672,8 +672,17 @@ static void assemble_hw_pps(struct rkvdec_ctx *ctx, LOG2_MAX_PIC_ORDER_CNT_LSB_MINUS4); WRITE_PPS(!!(sps->flags & V4L2_H264_SPS_FLAG_DELTA_PIC_ORDER_ALWAYS_ZERO), DELTA_PIC_ORDER_ALWAYS_ZERO_FLAG); - WRITE_PPS(DIV_ROUND_UP(ctx->coded_fmt.fmt.pix_mp.width, 16), PIC_WIDTH_IN_MBS); - WRITE_PPS(DIV_ROUND_UP(ctx->coded_fmt.fmt.pix_mp.height, 16), PIC_HEIGHT_IN_MBS); + + /* + * Use the SPS values since they are already in macroblocks + * dimensions, height can be field height (halved) if + * V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY is not set and also it allows + * decoding smaller images into larger allocation which can be used + * to implementing SVC spatial layer support. + */ + WRITE_PPS(sps->pic_width_in_mbs_minus1 + 1, PIC_WIDTH_IN_MBS); + WRITE_PPS(sps->pic_height_in_map_units_minus1 + 1, PIC_HEIGHT_IN_MBS); + WRITE_PPS(!!(sps->flags & V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY), FRAME_MBS_ONLY_FLAG); WRITE_PPS(!!(sps->flags & V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD), @@ -1035,13 +1044,61 @@ static int rkvdec_h264_adjust_fmt(struct rkvdec_ctx *ctx, return 0; } +static int rkvdec_h264_validate_sps(struct rkvdec_ctx *ctx, + const struct v4l2_ctrl_h264_sps *sps) +{ + unsigned int width, height; + + /* + * TODO: The hardware supports 10-bit and 4:2:2 profiles, + * but it's currently broken in the driver. + * Reject them for now, until it's fixed. + */ + if (sps->chroma_format_idc > 1) + /* Only 4:0:0 and 4:2:0 are supported */ + return -EINVAL; + if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8) + /* Luma and chroma bit depth mismatch */ + return -EINVAL; + if (sps->bit_depth_luma_minus8 != 0) + /* Only 8-bit is supported */ + return -EINVAL; + + width = (sps->pic_width_in_mbs_minus1 + 1) * 16; + height = (sps->pic_height_in_map_units_minus1 + 1) * 16; + + /* + * when frame_mbs_only_flag is not set, this is field height, + * which is half the final height (see (7-18) in the + * specification) + */ + if (!(sps->flags & V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY)) + height *= 2; + + if (width > ctx->coded_fmt.fmt.pix_mp.width || + height > ctx->coded_fmt.fmt.pix_mp.height) + return -EINVAL; + + return 0; +} + static int rkvdec_h264_start(struct rkvdec_ctx *ctx) { struct rkvdec_dev *rkvdec = ctx->dev; struct rkvdec_h264_priv_tbl *priv_tbl; struct rkvdec_h264_ctx *h264_ctx; + struct v4l2_ctrl *ctrl; int ret; + ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl, + V4L2_CID_STATELESS_H264_SPS); + if (!ctrl) + return -EINVAL; + + ret = rkvdec_h264_validate_sps(ctx, ctrl->p_new.p_h264_sps); + if (ret) + return ret; + h264_ctx = kzalloc(sizeof(*h264_ctx), GFP_KERNEL); if (!h264_ctx) return -ENOMEM; @@ -1139,23 +1196,9 @@ static int rkvdec_h264_run(struct rkvdec_ctx *ctx) static int rkvdec_h264_try_ctrl(struct rkvdec_ctx *ctx, struct v4l2_ctrl *ctrl) { - if (ctrl->id == V4L2_CID_STATELESS_H264_SPS) { - const struct v4l2_ctrl_h264_sps *sps = ctrl->p_new.p_h264_sps; - /* - * TODO: The hardware supports 10-bit and 4:2:2 profiles, - * but it's currently broken in the driver. - * Reject them for now, until it's fixed. - */ - if (sps->chroma_format_idc > 1) - /* Only 4:0:0 and 4:2:0 are supported */ - return -EINVAL; - if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8) - /* Luma and chroma bit depth mismatch */ - return -EINVAL; - if (sps->bit_depth_luma_minus8 != 0) - /* Only 8-bit is supported */ - return -EINVAL; - } + if (ctrl->id == V4L2_CID_STATELESS_H264_SPS) + return rkvdec_h264_validate_sps(ctx, ctrl->p_new.p_h264_sps); + return 0; }