From patchwork Fri Jul 12 10:29:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 812399 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B2D98158DBC; Fri, 12 Jul 2024 10:30:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720780210; cv=none; b=Nu9TC27xUhia9EdoO25SDwo0G0f1jom0NMj0xtT2hldchDSiR/z1SGme8Bnng0r+YvrDFFM6EVGWCNWT7+RkPjP/EQBbgy9UZrCAGhdlt/n2duuzsgbKlogKaFHZAv0xpk0fQZTybY/u2i2djuTl/FgourgGvoP+OoeYL4JqBQw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720780210; c=relaxed/simple; bh=qVypXOch48oh8pz0dXv8NywdGu9lmimthFqFd/CNk6I=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ZU9c7+x/qK63dpPiWEq8nmfvpf0fwhz0qT3wnw9fPRRAL91zlJoawk+up4vcmD1e3sZlNTCJR1bxgP8ENEJTO+yE9wPGzik7lpIRtYZpaRAsLw0daXYsy4oohmhAwxzH6SYAUXHb/E6zR+0Ma6itH1XZW/5IJA6OHL030NCWTJM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=at8WdOds; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="at8WdOds" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1720780207; bh=qVypXOch48oh8pz0dXv8NywdGu9lmimthFqFd/CNk6I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=at8WdOdscqWMF57UbteWJnCFhUQ4DIlo18lmHLQ6YB1V/jChoChtOqrBbHEZl+Irf MEmK5DIlQWuz7NBsbTioM13GvCtprcU+iN4DgAG3QjK6leFHt2GpWqcsbVDeelsKUc ozcLPyj2kE4SAJ7qzhgIsKmmbdJHe8+iXNOrAIZDgi+5cm1gaco6jpWUB9WGUIRCM1 c4wMQYlNafF0vIKuFO/9J/DNfk9SC8ty8wTkD8qO8gssKHC/UcfCNkEMiuzqlvQFCj KlN7jG9Ruc0dmzUfDXFJMY3NRCXu8O99KLhvwZUk0NmkGiRcwuftEUHdsAFNZvISTG LoJ2vqKxZTUVA== Received: from benjamin-XPS-13-9310.. (cola.collaboradmins.com [195.201.22.229]) (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 madrid.collaboradmins.com (Postfix) with ESMTPSA id 90E7C3782211; Fri, 12 Jul 2024 10:30:06 +0000 (UTC) From: Benjamin Gaignard To: mchehab@kernel.org, ezequiel@vanguardiasur.com.ar, hverkuil-cisco@xs4all.nl Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, kernel@collabora.com, Benjamin Gaignard Subject: [PATCH v3 1/2] media: videodev2: Add flags to unconditionnaly enumerate pixels formats Date: Fri, 12 Jul 2024 12:29:59 +0200 Message-ID: <20240712103000.16655-2-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240712103000.16655-1-benjamin.gaignard@collabora.com> References: <20240712103000.16655-1-benjamin.gaignard@collabora.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add new flags to enumerate all pixels formats when calling VIDIOC_ENUM_FMT ioctl. When this V4L2_FMT_FLAG_ENUM_ALL_FORMATS flag is set drivers must ignore the configuration and return the hardware supported pixel formats for the specified queue. To distinguish this particular enumeration case V4L2_FMT_FLAG_ALL_FORMATS flag must be set by the drivers to highlight support of this feature to user space applications. This will permit to discover which pixel formats are supported without setting codec-specific information so userland can more easily know if the driver suits its needs well. The main target are stateless decoders so update the documentation about how to use this flag. Signed-off-by: Benjamin Gaignard --- changes in version 3: - Add a flag to inform userspace application that driver as take care of the flag. .../userspace-api/media/v4l/dev-stateless-decoder.rst | 6 ++++++ .../userspace-api/media/v4l/vidioc-enum-fmt.rst | 9 +++++++++ .../userspace-api/media/videodev2.h.rst.exceptions | 2 ++ drivers/media/v4l2-core/v4l2-ioctl.c | 3 +++ include/uapi/linux/videodev2.h | 2 ++ 5 files changed, 22 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/dev-stateless-decoder.rst b/Documentation/userspace-api/media/v4l/dev-stateless-decoder.rst index 35ed05f2695e..b0b657de910d 100644 --- a/Documentation/userspace-api/media/v4l/dev-stateless-decoder.rst +++ b/Documentation/userspace-api/media/v4l/dev-stateless-decoder.rst @@ -58,6 +58,12 @@ Querying capabilities default values for these controls being used, and a returned set of formats that may not be usable for the media the client is trying to decode. + * If the ``V4L2_FMT_FLAG_ENUM_ALL_FORMATS`` flag is set the driver must enumerate + all the supported formats without taking care of codec-dependent controls + set on the ``OUTPUT`` queue. To indicate that the driver has take care of this + flag it must set ``V4L2_FMT_FLAG_ALL_FORMATS`` flag for each format while + enumerating. + 3. The client may use :c:func:`VIDIOC_ENUM_FRAMESIZES` to detect supported resolutions for a given format, passing desired pixel format in :c:type:`v4l2_frmsizeenum`'s ``pixel_format``. diff --git a/Documentation/userspace-api/media/v4l/vidioc-enum-fmt.rst b/Documentation/userspace-api/media/v4l/vidioc-enum-fmt.rst index 3adb3d205531..0399e0fc09b3 100644 --- a/Documentation/userspace-api/media/v4l/vidioc-enum-fmt.rst +++ b/Documentation/userspace-api/media/v4l/vidioc-enum-fmt.rst @@ -234,6 +234,15 @@ the ``mbus_code`` field is handled differently: valid. The buffer consists of ``height`` lines, each having ``width`` Data Units of data and the offset (in bytes) between the beginning of each two consecutive lines is ``bytesperline``. + * - ``V4L2_FMT_FLAG_ENUM_ALL_FORMATS`` + - 0x0400 + - Set by userland applications to enumerate all possible pixel formats + without taking care of any OUTPUT or CAPTURE queue configuration. + * - ``V4L2_FMT_FLAG_ALL_FORMATS`` + - 0x0800 + - Set by the driver to indicated that format have been enumerated because + :ref:`V4L2_FMT_FLAG_ENUM_ALL_FORMATS ` has + been set by the userland application. Return Value ============ diff --git a/Documentation/userspace-api/media/videodev2.h.rst.exceptions b/Documentation/userspace-api/media/videodev2.h.rst.exceptions index bdc628e8c1d6..7a3a1e9dc055 100644 --- a/Documentation/userspace-api/media/videodev2.h.rst.exceptions +++ b/Documentation/userspace-api/media/videodev2.h.rst.exceptions @@ -216,6 +216,8 @@ replace define V4L2_FMT_FLAG_CSC_YCBCR_ENC fmtdesc-flags replace define V4L2_FMT_FLAG_CSC_HSV_ENC fmtdesc-flags replace define V4L2_FMT_FLAG_CSC_QUANTIZATION fmtdesc-flags replace define V4L2_FMT_FLAG_META_LINE_BASED fmtdesc-flags +replace define V4L2_FMT_FLAG_ENUM_ALL_FORMATS fmtdesc-flags +replace define V4L2_FMT_FLAG_ALL_FORMATS fmtdesc-flags # V4L2 timecode types replace define V4L2_TC_TYPE_24FPS timecode-type diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 4c76d17b4629..5785a98b6ba2 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1569,6 +1569,7 @@ static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops, int ret = check_fmt(file, p->type); u32 mbus_code; u32 cap_mask; + u32 flags; if (ret) return ret; @@ -1578,8 +1579,10 @@ static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops, p->mbus_code = 0; mbus_code = p->mbus_code; + flags = p->flags & V4L2_FMT_FLAG_ENUM_ALL_FORMATS; memset_after(p, 0, type); p->mbus_code = mbus_code; + p->flags = flags; switch (p->type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index fe6b67e83751..b6a5da79ba21 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -886,6 +886,8 @@ struct v4l2_fmtdesc { #define V4L2_FMT_FLAG_CSC_HSV_ENC V4L2_FMT_FLAG_CSC_YCBCR_ENC #define V4L2_FMT_FLAG_CSC_QUANTIZATION 0x0100 #define V4L2_FMT_FLAG_META_LINE_BASED 0x0200 +#define V4L2_FMT_FLAG_ENUM_ALL_FORMATS 0x0400 +#define V4L2_FMT_FLAG_ALL_FORMATS 0x0800 /* Frame Size and frame rate enumeration */ /* From patchwork Fri Jul 12 10:30:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 812543 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 56A9115CD41; Fri, 12 Jul 2024 10:30:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720780211; cv=none; b=ibj0Wu8no64sVtXwAdYCtkj4mRCLPq0bS87yp27K+TTJ8SFQ3kATl0a0OkppqSZ4eq2aS0LMOEuIjesB+9UKvV3y+t020V8VtXW6VVGQ5jW7RlB4cgeZ7THV5jF0XBqh1S2kFsef5mx+vgSRTpBEHV3fmb2hsuy6yB53jmhUfgw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720780211; c=relaxed/simple; bh=bELZrED6sIOc9BpYrGeP+56C/27OSrzikkUngJU8pDY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nish8wzHCzYUaX8v4tHZhtnE66xh+DKejUV9cwMdm7OigMJDv1UryfQ8vQK77wurhAMPSYd63o5/Nxt0A7wWEgmiR26YMXsTcvahuP65DDhT6UUQJr1TtxJ7fR9U1+t5irJaLxjVmV/x104AIWExdGUh/iLFblxxBtxJ6I/lhCE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=oxXgO+e7; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="oxXgO+e7" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1720780207; bh=bELZrED6sIOc9BpYrGeP+56C/27OSrzikkUngJU8pDY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oxXgO+e7FmckzoixskpxSN5/Z9J0D0hGcVERZ1gi52+XRCypdyw9GQxfxWk5VLFXf LTt57aarZV6I01SN3iyOKSWeKMUrXwpJp7OX3+1aF3THxuJU3IWVJEU1N+UkhpzKm9 rUGTBB3UUSfeRmNZNIeEQ550cBmVZ9pyd/0TP4nXStTUcpd8VpQH5OzLMZ7WEhiOZf M8u1aF50KuPvgZOWe/HfvZcvQ9BMvJUdW2V1dxv3BuOSm1Qo91QhQkkwgt7Q43lp6Q S/KsEQDVdRkk+B/Ft+kdhCsOjm/htlkKWuOXX9eYPp1V04VPSnHRKv+JA79TIrejcq 1qp29A3m9+NTQ== Received: from benjamin-XPS-13-9310.. (cola.collaboradmins.com [195.201.22.229]) (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 madrid.collaboradmins.com (Postfix) with ESMTPSA id 2DA023782212; Fri, 12 Jul 2024 10:30:07 +0000 (UTC) From: Benjamin Gaignard To: mchehab@kernel.org, ezequiel@vanguardiasur.com.ar, hverkuil-cisco@xs4all.nl Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, kernel@collabora.com, Benjamin Gaignard Subject: [PATCH v3 2/2] media: verisilicon: Use V4L2_FMT_FLAG_ENUM_ALL_FORMATS flag Date: Fri, 12 Jul 2024 12:30:00 +0200 Message-ID: <20240712103000.16655-3-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240712103000.16655-1-benjamin.gaignard@collabora.com> References: <20240712103000.16655-1-benjamin.gaignard@collabora.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 If V4L2_FMT_FLAG_ENUM_ALL_FORMATS flag has been set when calling VIDIOC_ENUM_FMT ignore depth match and returns all the hardware supported pixels formats. In this case all set V4L2_FMT_FLAG_ALL_FORMATS when returning the pixels formats. Signed-off-by: Benjamin Gaignard --- version 3: - Set V4L2_FMT_FLAG_ALL_FORMATS flag when needed. drivers/media/platform/verisilicon/hantro_v4l2.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c index df6f2536263b..b995ad31cddc 100644 --- a/drivers/media/platform/verisilicon/hantro_v4l2.c +++ b/drivers/media/platform/verisilicon/hantro_v4l2.c @@ -201,7 +201,13 @@ static int vidioc_enum_fmt(struct file *file, void *priv, struct hantro_ctx *ctx = fh_to_ctx(priv); const struct hantro_fmt *fmt, *formats; unsigned int num_fmts, i, j = 0; - bool skip_mode_none; + bool skip_mode_none, ignore_depth_match; + + /* + * If V4L2_FMT_FLAG_ALL_FORMATS flag is set, we want to enumerate all + * hardware supported pixels formats + */ + ignore_depth_match = !!(f->flags & V4L2_FMT_FLAG_ENUM_ALL_FORMATS); /* * When dealing with an encoder: @@ -222,10 +228,12 @@ static int vidioc_enum_fmt(struct file *file, void *priv, if (skip_mode_none == mode_none) continue; - if (!hantro_check_depth_match(fmt, ctx->bit_depth)) + if (!hantro_check_depth_match(fmt, ctx->bit_depth) && !ignore_depth_match) continue; if (j == f->index) { f->pixelformat = fmt->fourcc; + if (ignore_depth_match) + f->flags |= V4L2_FMT_FLAG_ALL_FORMATS; return 0; } ++j; @@ -242,10 +250,12 @@ static int vidioc_enum_fmt(struct file *file, void *priv, for (i = 0; i < num_fmts; i++) { fmt = &formats[i]; - if (!hantro_check_depth_match(fmt, ctx->bit_depth)) + if (!hantro_check_depth_match(fmt, ctx->bit_depth) && !ignore_depth_match) continue; if (j == f->index) { f->pixelformat = fmt->fourcc; + if (ignore_depth_match) + f->flags |= V4L2_FMT_FLAG_ALL_FORMATS; return 0; } ++j;