From patchwork Fri Jan 7 15:54:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 530591 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 3B0C9C433FE for ; Fri, 7 Jan 2022 15:55:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348163AbiAGPzH (ORCPT ); Fri, 7 Jan 2022 10:55:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35538 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348160AbiAGPzG (ORCPT ); Fri, 7 Jan 2022 10:55:06 -0500 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 12CD6C061574; Fri, 7 Jan 2022 07:55:06 -0800 (PST) Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:21c7:4f13:8afa:4f9f]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 292B21F4649C; Fri, 7 Jan 2022 15:55:04 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1641570904; bh=EEw7aWj1jjYfy1MfUTX49/5QXa0lukrZnBwNOt8pnkg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=h0oVwoQ1ng11dUQk0FbkfpqmVsC4WQrsaHkn23ccz0D+sWUj4LgEZbUvdeipgXokS 6By9hZLX5EQDK8iTYs8Yn7v74TG7cQrz4OLzGOi5ezM1Dci9mFlDYgOg2IujLD7lEK bQ+KlBhfXCog3vV1lrkIb6D7xItKDC3TkunSn/p2iiJ01W6V8+nmMw7Piyk6KnsKV2 4/YeHD3sPeQwWM15Pk5oILeB74lR1oJRsyKG9ygCNMK/Gnns7qPZdIa23ZE6d051/E JsmANJiERf8uY7HsMEj8L1JGdJxTxXXQCChyZNhOy9o+YSCQ9Mclum6VT2zRW4alIf v3TJOo2nsespQ== From: Benjamin Gaignard To: mchehab@kernel.org, ezequiel@vanguardiasur.com.ar, p.zabel@pengutronix.de, gregkh@linuxfoundation.org, hverkuil-cisco@xs4all.nl, jernej.skrabec@gmail.com, nicolas.dufresne@collabora.co.uk Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-staging@lists.linux.dev, kernel@collabora.com, Benjamin Gaignard Subject: [PATCH v5 1/2] media: hevc: Remove RPS named flags Date: Fri, 7 Jan 2022 16:54:54 +0100 Message-Id: <20220107155455.604536-2-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220107155455.604536-1-benjamin.gaignard@collabora.com> References: <20220107155455.604536-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Marking a picture as long-term reference is valid for DPB but not for RPS. Change flag name to match with it description in HEVC spec chapiter "8.3.2 Decoding process for reference picture set". PocStCurrBefore, PocStCurrAfter, PocLtCurr lists could be built by the kernel from the DPB entries struct v4l2_hevc_dpb_entry, using the information in the rps field. This way RPS flags becomes useless and are removed. This patch break staging HEVC API because it introduce a new flag, change a field name in v4l2_hevc_dpb_entry structure and remove V4L2_HEVC_DPB_ENTRY_RPS_* flags. Signed-off-by: Benjamin Gaignard Reviewed-by: Jernej Skrabec Reviewed-by: Ezequiel Garcia --- version 5: - rework commit message as suggested by Ezequiel - improve V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE documentation with reference to HEVC ITU spec. - add review-by tags from Jernej and Ezequiel version 4: - check flags with & and not == .../userspace-api/media/v4l/ext-ctrls-codec.rst | 10 +++++----- drivers/staging/media/hantro/hantro_g2_hevc_dec.c | 2 +- drivers/staging/media/sunxi/cedrus/cedrus_h265.c | 2 +- include/media/hevc-ctrls.h | 6 ++---- 4 files changed, 9 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 e141f0e4eec9..5d1fc2d33dc7 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst @@ -3166,11 +3166,11 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - :c:func:`v4l2_timeval_to_ns()` function to convert the struct :c:type:`timeval` in struct :c:type:`v4l2_buffer` to a __u64. * - __u8 - - ``rps`` - - The reference set for the reference frame - (V4L2_HEVC_DPB_ENTRY_RPS_ST_CURR_BEFORE, - V4L2_HEVC_DPB_ENTRY_RPS_ST_CURR_AFTER or - V4L2_HEVC_DPB_ENTRY_RPS_LT_CURR) + - ``flags`` + - Long term flag for the reference frame + (V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE). The flag is set like + describe in ITU HEVC specification chapiter "8.3.2 Decoding + process for reference picture set". * - __u8 - ``field_pic`` - Whether the reference is a field picture or a frame. diff --git a/drivers/staging/media/hantro/hantro_g2_hevc_dec.c b/drivers/staging/media/hantro/hantro_g2_hevc_dec.c index 99d8ea7543da..14e0e6414100 100644 --- a/drivers/staging/media/hantro/hantro_g2_hevc_dec.c +++ b/drivers/staging/media/hantro/hantro_g2_hevc_dec.c @@ -433,7 +433,7 @@ static int set_ref(struct hantro_ctx *ctx) chroma_addr = luma_addr + cr_offset; mv_addr = luma_addr + mv_offset; - if (dpb[i].rps == V4L2_HEVC_DPB_ENTRY_RPS_LT_CURR) + if (dpb[i].flags & V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE) dpb_longterm_e |= BIT(V4L2_HEVC_DPB_ENTRIES_NUM_MAX - 1 - i); hantro_write_addr(vpu, G2_REF_LUMA_ADDR(i), luma_addr); diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c index 8829a7bab07e..8ab2d9c6f048 100644 --- a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c +++ b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c @@ -169,7 +169,7 @@ static void cedrus_h265_ref_pic_list_write(struct cedrus_dev *dev, unsigned int index = list[i]; u8 value = list[i]; - if (dpb[index].rps == V4L2_HEVC_DPB_ENTRY_RPS_LT_CURR) + if (dpb[index].flags & V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE) value |= VE_DEC_H265_SRAM_REF_PIC_LIST_LT_REF; /* Each SRAM word gathers up to 4 references. */ diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h index ef63bc205756..01ccda48d8c5 100644 --- a/include/media/hevc-ctrls.h +++ b/include/media/hevc-ctrls.h @@ -127,15 +127,13 @@ struct v4l2_ctrl_hevc_pps { __u64 flags; }; -#define V4L2_HEVC_DPB_ENTRY_RPS_ST_CURR_BEFORE 0x01 -#define V4L2_HEVC_DPB_ENTRY_RPS_ST_CURR_AFTER 0x02 -#define V4L2_HEVC_DPB_ENTRY_RPS_LT_CURR 0x03 +#define V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE 0x01 #define V4L2_HEVC_DPB_ENTRIES_NUM_MAX 16 struct v4l2_hevc_dpb_entry { __u64 timestamp; - __u8 rps; + __u8 flags; __u8 field_pic; __u16 pic_order_cnt[2]; __u8 padding[2];