From mboxrd@z Thu Jan 1 00:00:00 1970 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 18753C433EF for ; Fri, 22 Apr 2022 07:40:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1444944AbiDVHna (ORCPT ); Fri, 22 Apr 2022 03:43:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54716 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1444957AbiDVHme (ORCPT ); Fri, 22 Apr 2022 03:42:34 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CEA42517CE; Fri, 22 Apr 2022 00:39:41 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 67F7961F1C; Fri, 22 Apr 2022 07:39:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 18169C385A0; Fri, 22 Apr 2022 07:39:38 +0000 (UTC) Message-ID: Date: Fri, 22 Apr 2022 09:39:37 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: [PATCH v3 16/24] media: rkvdec: h264: Validate and use pic width and height in mbs Content-Language: en-US To: Nicolas Dufresne , Ezequiel Garcia , Mauro Carvalho Chehab , Greg Kroah-Hartman Cc: kernel@collabora.com, linux-kernel@vger.kernel.org, Jonas Karlman , linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev References: <20220405204426.259074-1-nicolas.dufresne@collabora.com> <20220405204426.259074-17-nicolas.dufresne@collabora.com> From: Hans Verkuil In-Reply-To: <20220405204426.259074-17-nicolas.dufresne@collabora.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/04/2022 22:44, Nicolas Dufresne wrote: > 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 > --- > drivers/staging/media/rkvdec/rkvdec-h264.c | 78 ++++++++++++++++------ > 1 file changed, 59 insertions(+), 19 deletions(-) > > diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c > index 0dcbcb1bac80..f081b476340f 100644 > --- a/drivers/staging/media/rkvdec/rkvdec-h264.c > +++ b/drivers/staging/media/rkvdec/rkvdec-h264.c > @@ -672,8 +672,16 @@ 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 Move /* to a line by itself. > + * 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 +1043,59 @@ 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; Add empty line here. > + /* > + * 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, Place /* on a line by itself. And 'when' should be 'When'. Regards, Hans > + * 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 +1193,9 @@ 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; > } >