[{"id":38027,"web_url":"https://patchwork.libcamera.org/comment/38027/","msgid":"<85ldhftd5n.fsf@mzamazal-thinkpadp1gen7.tpbc.csb>","date":"2026-01-30T13:59:00","subject":"Re: [PATCH v1] meson: Add options to control drm, sdl2, jpeg\n\tdependencies of `cam`","submitter":{"id":177,"url":"https://patchwork.libcamera.org/api/people/177/","name":"Milan Zamazal","email":"mzamazal@redhat.com"},"content":"Barnabás Pőcze writes:\n\n> Previously it was not possible to control these dependencies, they were\n> always used if found. Furthermore, libjpeg was unnecessarily added as a\n> dependency even if sdl2 was not found. Fix that by introducing three\n> options to control the dependencies.\n\nIf it is useful:\n\nReviewed-by: Milan Zamazal \n\n> Signed-off-by: Barnabás Pőcze \n> ---\n> meson_options.txt | 15 +++++++++++++++\n> src/apps/cam/meson.build | 36 ++++++++++++++++++++++--------------\n> 2 files changed, 37 insertions(+), 14 deletions(-)\n>\n> diff --git a/meson_options.txt b/meson_options.txt\n> index 8121cf5d2..58cf52ad1 100644\n> --- a/meson_options.txt\n> +++ b/meson_options.txt\n> @@ -16,6 +16,21 @@ option('cam',\n> value : 'auto',\n> description : 'Compile the cam test application')\n> \n> +option('cam-output-kms',\n> + type : 'feature',\n> + value : 'auto',\n> + description : 'Enable KMS output in the cam application')\n> +\n> +option('cam-output-sdl2',\n> + type : 'feature',\n> + value : 'auto',\n> + description : 'Enable SDL2 output in the cam application')\n> +\n> +option('cam-output-sdl2-jpeg',\n> + type : 'feature',\n> + value : 'auto',\n> + description : 'Enable JPEG support in the SDL2 output in the cam application')\n> +\n> option('documentation',\n> type : 'feature',\n> value : 'auto',\n> diff --git a/src/apps/cam/meson.build b/src/apps/cam/meson.build\n> index cd7f120f9..c73c0f5d9 100644\n> --- a/src/apps/cam/meson.build\n> +++ b/src/apps/cam/meson.build\n> @@ -17,9 +17,18 @@ cam_sources = files([\n> \n> cam_cpp_args = [apps_cpp_args]\n> \n> -libdrm = dependency('libdrm', required : false)\n> -libjpeg = dependency('libjpeg', required : false)\n> -libsdl2 = dependency('SDL2', required : false)\n> +cam_deps = [\n> + libatomic,\n> + libcamera_public,\n> + libevent,\n> + libthreads,\n> + libyaml,\n> + libtiff,\n> +]\n> +\n> +libdrm = dependency('libdrm', required : get_option('cam-output-kms'))\n> +libsdl2 = dependency('SDL2', required : get_option('cam-output-sdl2'))\n> +libjpeg = dependency('libjpeg', required : get_option('cam-output-sdl2-jpeg'))\n> \n> if libdrm.found()\n> cam_cpp_args += [ '-DHAVE_KMS' ]\n> @@ -27,6 +36,9 @@ if libdrm.found()\n> 'drm.cpp',\n> 'kms_sink.cpp'\n> ])\n> + cam_deps += [\n> + libdrm,\n> + ]\n> endif\n> \n> if libsdl2.found()\n> @@ -37,28 +49,24 @@ if libsdl2.found()\n> 'sdl_texture_1plane.cpp',\n> 'sdl_texture_yuv.cpp',\n> ])\n> + cam_deps += [\n> + libsdl2,\n> + ]\n> \n> if libjpeg.found()\n> cam_cpp_args += ['-DHAVE_LIBJPEG']\n> cam_sources += files([\n> 'sdl_texture_mjpg.cpp'\n> ])\n> + cam_deps += [\n> + libjpeg,\n> + ]\n> endif\n> endif\n> \n> cam = executable('cam', cam_sources,\n> link_with : apps_lib,\n> - dependencies : [\n> - libatomic,\n> - libcamera_public,\n> - libdrm,\n> - libevent,\n> - libjpeg,\n> - libsdl2,\n> - libtiff,\n> - libthreads,\n> - libyaml,\n> - ],\n> + dependencies : cam_deps,\n> cpp_args : cam_cpp_args,\n> install : true,\n> install_tag : 'bin')","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id B1949C3226\n\tfor ;\n\tFri, 30 Jan 2026 13:59:10 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 12AEC61FD5;\n\tFri, 30 Jan 2026 14:59:10 +0100 (CET)","from us-smtp-delivery-124.mimecast.com\n\t(us-smtp-delivery-124.mimecast.com [170.10.133.124])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id E87CA61FC6\n\tfor ;\n\tFri, 30 Jan 2026 14:59:07 +0100 (CET)","from mail-wm1-f72.google.com (mail-wm1-f72.google.com\n\t[209.85.128.72]) by relay.mimecast.com with ESMTP with STARTTLS\n\t(version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id\n\tus-mta-540-DHjrut5dMKmIKtlqO9ganQ-1; Fri, 30 Jan 2026 08:59:04 -0500","by mail-wm1-f72.google.com with SMTP id\n\t5b1f17b1804b1-47ee3dd7fc8so23437915e9.3\n\tfor ;\n\tFri, 30 Jan 2026 05:59:03 -0800 (PST)","from mzamazal-thinkpadp1gen7.tpbc.csb\n\t(ip-77-48-47-2.net.vodafone.cz. [77.48.47.2])\n\tby smtp.gmail.com with ESMTPSA id\n\tffacd0b85a97d-435e13235f5sm21893086f8f.29.2026.01.30.05.59.01\n\t(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n\tFri, 30 Jan 2026 05:59:01 -0800 (PST)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=redhat.com header.i=@redhat.com\n\theader.b=\"hcdge/39\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n\ts=mimecast20190719; t=1769781545;\n\th=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n\tto:to:cc:cc:mime-version:mime-version:content-type:content-type:\n\tcontent-transfer-encoding:content-transfer-encoding:\n\tin-reply-to:in-reply-to:references:references;\n\tbh=BB3rT6QjuL6Tk1p7rfwX3K0Rlk4h0eCwAovrmRLYLbU=;\n\tb=hcdge/39vaCunx/IoFIpY/GDjHzbsI5BLRVv4YBid0OVeM3yQ48ndZx7YXjPcysvJCECHa\n\tIJHIO3rutuxR6r7zPSvf+xf+zcwzSWkfF9H8ov9cqxCZzYuiJFcARIbBpgzrXfUdiuNAvn\n\t7sLbmYiglpy3Tc/0jPZAUnHJumYkY1Q=","X-MC-Unique":"DHjrut5dMKmIKtlqO9ganQ-1","X-Mimecast-MFC-AGG-ID":"DHjrut5dMKmIKtlqO9ganQ_1769781543","X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20230601; t=1769781542; x=1770386342;\n\th=content-transfer-encoding:mime-version:user-agent:message-id:date\n\t:references:in-reply-to:subject:cc:to:from:x-gm-gg\n\t:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to;\n\tbh=F+doXJI1uGbyXPgd/etsyhcAeKZhfE+cdZxwQBoHewE=;\n\tb=bgClU7oMVVYcbpZ1usogkVa48DzPmZBXx0GOFsC3WPdQP+7x2Jj5V5sq9xcXw4E/Ye\n\tA9LWMtpCvXceHA21XrumvjL8D5t/66g2IVIlLWeDS4MpHllBW5yayLEBJIZUM2HjfKb6\n\tT7IPlZgIbMikhGcoKoHkLGbRHuuZB3/v7U8hnd1vS1KyuI1pwxVgi1dZaaLha7waT5Lb\n\ttJTeAvm/8v6Mnx83DzD0G6Ozgvdxq8zfv/pEhqeFwEFovgZccSMP6K4vAVFVMeiF4+ra\n\tBYEzUsWnBld+FTn9wvSFmZllR6B215teSWbES1Af9e5s0VpDlxGAbCqxqp4G2XNt8pia\n\tbymQ==","X-Gm-Message-State":"AOJu0YxbdEDwm6qLYSm0pl2KFnFZJwTZv7V7GYqbhBMO7+qt6HOhQVDZ\n\t419yiy0whz7jwRfZQ7L7UG1ty83iYGYlP8AEApqZMEQdSn3QGLlLWA0qdTRRdnRXgd0WHimrNpk\n\tmG3csfNObsDMyLsrwvc1w8sEybH1nqegb9lf4Kb8M80b/iZuhPSuhVayJgbO7eMbEePYoLZ14AW\n\trEBhLx784uGMZTkE+ns3hKZOZLshxCpIi8BlPlKR0Qwv7vt11HLK8AuC8xzlY=","X-Gm-Gg":"AZuq6aLENXyuxemxljoMk2ih0IF6+uPnbe4rZe9ZtMdfJ1jJRt1fuETYTLCuywPTE3+\n\tM+FSWNE7AKzG3E/Bs0/szLIlrnimqO1PMI90UBhMae1PnGRrVBLpfouru7beETriSCEeixBMGfU\n\t+uU+A3Gwbmkc/AGJuFMWkgyInhcWr+WS810DOYdckGxlxT6pDTJJHN7yEROdFUp8fn4gv60EsRb\n\tRxt8vpGlqrpTJ6LoW460aokP2RjZj5EGfUBReOdnLYtM5skCaTUM5vuyGPRWIDYyGdxRGgBkn3S\n\trb+Td5NOlPFpttiAnqn9pIhH9ZU7kR7MYEksWnxFuaVxyBu5offEFWhZ8mj8qMMmzEsVgMAMSac\n\tYWBIFtdBRlC0KCFEHON7j8s44ZWJP2VdRWeVRqD46Yle9AI6GNjajY94qhXuRIVw=","X-Received":["by 2002:a05:600c:470c:b0:47e:e952:86c9 with SMTP id\n\t5b1f17b1804b1-482db1ffb81mr41412835e9.0.1769781542375; \n\tFri, 30 Jan 2026 05:59:02 -0800 (PST)","by 2002:a05:600c:470c:b0:47e:e952:86c9 with SMTP id\n\t5b1f17b1804b1-482db1ffb81mr41412545e9.0.1769781541991; \n\tFri, 30 Jan 2026 05:59:01 -0800 (PST)"],"From":"Milan Zamazal ","To":"=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= ","Cc":"libcamera-devel@lists.libcamera.org","Subject":"Re: [PATCH v1] meson: Add options to control drm, sdl2, jpeg\n\tdependencies of `cam`","In-Reply-To":"<20260130111133.1576210-1-barnabas.pocze@ideasonboard.com> (\n\t=?utf-8?b?IkJhcm5hYsOhcyBQxZFjemUiJ3M=?= message of \"Fri,\n\t30 Jan 2026 12:11:33 +0100\")","References":"<20260130111133.1576210-1-barnabas.pocze@ideasonboard.com>","Date":"Fri, 30 Jan 2026 14:59:00 +0100","Message-ID":"<85ldhftd5n.fsf@mzamazal-thinkpadp1gen7.tpbc.csb>","User-Agent":"Gnus/5.13 (Gnus v5.13)","MIME-Version":"1.0","X-Mimecast-Spam-Score":"0","X-Mimecast-MFC-PROC-ID":"g4QTJuJwDjzQa-9FbjdcbIE_dF7u62Z4CX4aN2weKJI_1769781543","X-Mimecast-Originator":"redhat.com","Content-Type":"text/plain; charset=utf-8","Content-Transfer-Encoding":"quoted-printable","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":38109,"web_url":"https://patchwork.libcamera.org/comment/38109/","msgid":"<20260206005502.GH1376807@killaraus.ideasonboard.com>","date":"2026-02-06T00:55:02","subject":"Re: [PATCH v1] meson: Add options to control drm, sdl2, jpeg\n\tdependencies of `cam`","submitter":{"id":2,"url":"https://patchwork.libcamera.org/api/people/2/","name":"Laurent Pinchart","email":"laurent.pinchart@ideasonboard.com"},"content":"On Fri, Jan 30, 2026 at 12:11:33PM +0100, Barnabás Pőcze wrote:\n> Previously it was not possible to control these dependencies, they were\n> always used if found. Furthermore, libjpeg was unnecessarily added as a\n> dependency even if sdl2 was not found. Fix that by introducing three\n> options to control the dependencies.\n> \n> Signed-off-by: Barnabás Pőcze \n> ---\n> meson_options.txt | 15 +++++++++++++++\n> src/apps/cam/meson.build | 36 ++++++++++++++++++++++--------------\n> 2 files changed, 37 insertions(+), 14 deletions(-)\n> \n> diff --git a/meson_options.txt b/meson_options.txt\n> index 8121cf5d2..58cf52ad1 100644\n> --- a/meson_options.txt\n> +++ b/meson_options.txt\n> @@ -16,6 +16,21 @@ option('cam',\n> value : 'auto',\n> description : 'Compile the cam test application')\n> \n> +option('cam-output-kms',\n> + type : 'feature',\n> + value : 'auto',\n> + description : 'Enable KMS output in the cam application')\n> +\n> +option('cam-output-sdl2',\n> + type : 'feature',\n> + value : 'auto',\n> + description : 'Enable SDL2 output in the cam application')\n> +\n> +option('cam-output-sdl2-jpeg',\n> + type : 'feature',\n> + value : 'auto',\n> + description : 'Enable JPEG support in the SDL2 output in the cam application')\n> +\n> option('documentation',\n> type : 'feature',\n> value : 'auto',\n> diff --git a/src/apps/cam/meson.build b/src/apps/cam/meson.build\n> index cd7f120f9..c73c0f5d9 100644\n> --- a/src/apps/cam/meson.build\n> +++ b/src/apps/cam/meson.build\n> @@ -17,9 +17,18 @@ cam_sources = files([\n> \n> cam_cpp_args = [apps_cpp_args]\n> \n> -libdrm = dependency('libdrm', required : false)\n> -libjpeg = dependency('libjpeg', required : false)\n> -libsdl2 = dependency('SDL2', required : false)\n> +cam_deps = [\n> + libatomic,\n> + libcamera_public,\n> + libevent,\n> + libthreads,\n> + libyaml,\n> + libtiff,\n> +]\n> +\n> +libdrm = dependency('libdrm', required : get_option('cam-output-kms'))\n> +libsdl2 = dependency('SDL2', required : get_option('cam-output-sdl2'))\n> +libjpeg = dependency('libjpeg', required : get_option('cam-output-sdl2-jpeg'))\n\nI wonder if we could combine the cam-output-sdl2 and\ncam-output-sdl2-jpeg options here to avoid looking up libjpeg if SDL2 is\ndisabled, but it's probably not worth it.\n\nActually, I think we should support JPEG decompression with the KMS\noutput as well, in which case the option would become cam-jpeg (or\nsomething similar). We could already name it like that, to avoid\nrenaming it later.\n\nWith that,\n\nReviewed-by: Laurent Pinchart \n\n> \n> if libdrm.found()\n> cam_cpp_args += [ '-DHAVE_KMS' ]\n> @@ -27,6 +36,9 @@ if libdrm.found()\n> 'drm.cpp',\n> 'kms_sink.cpp'\n> ])\n> + cam_deps += [\n> + libdrm,\n> + ]\n> endif\n> \n> if libsdl2.found()\n> @@ -37,28 +49,24 @@ if libsdl2.found()\n> 'sdl_texture_1plane.cpp',\n> 'sdl_texture_yuv.cpp',\n> ])\n> + cam_deps += [\n> + libsdl2,\n> + ]\n> \n> if libjpeg.found()\n> cam_cpp_args += ['-DHAVE_LIBJPEG']\n> cam_sources += files([\n> 'sdl_texture_mjpg.cpp'\n> ])\n> + cam_deps += [\n> + libjpeg,\n> + ]\n> endif\n> endif\n> \n> cam = executable('cam', cam_sources,\n> link_with : apps_lib,\n> - dependencies : [\n> - libatomic,\n> - libcamera_public,\n> - libdrm,\n> - libevent,\n> - libjpeg,\n> - libsdl2,\n> - libtiff,\n> - libthreads,\n> - libyaml,\n> - ],\n> + dependencies : cam_deps,\n> cpp_args : cam_cpp_args,\n> install : true,\n> install_tag : 'bin')","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 7B0F6C31E9\n\tfor ;\n\tFri, 6 Feb 2026 00:55:07 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 791FC62074;\n\tFri, 6 Feb 2026 01:55:06 +0100 (CET)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 216C061FBF\n\tfor ;\n\tFri, 6 Feb 2026 01:55:04 +0100 (CET)","from killaraus.ideasonboard.com\n\t(2001-14ba-703d-e500--2a1.rev.dnainternet.fi\n\t[IPv6:2001:14ba:703d:e500::2a1])\n\tby perceval.ideasonboard.com (Postfix) with UTF8SMTPSA id A2F882E0;\n\tFri, 6 Feb 2026 01:54:20 +0100 (CET)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"W20aELv7\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1770339260;\n\tbh=jj2vVgu6CG6Q/B+tOg0HmxG/dfTrUsIjpX34DDXYGbQ=;\n\th=Date:From:To:Cc:Subject:References:In-Reply-To:From;\n\tb=W20aELv7zZxD2VcpLzhpOdRsyBAI4VukCZbCS+MuJ/szDbBydXyH97fjXxxTKQrs0\n\tEizAsx6NDrhDG+WoQTW9loeu9BOqI7aAVaNGudGOD/ML5dV0ykdvpYWzPYPKwStueG\n\t4Rt0+xSamfCNkEIasx/k1ZkMAoRp5f/KodpdyyFc=","Date":"Fri, 6 Feb 2026 02:55:02 +0200","From":"Laurent Pinchart ","To":"=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= ","Cc":"libcamera-devel@lists.libcamera.org","Subject":"Re: [PATCH v1] meson: Add options to control drm, sdl2, jpeg\n\tdependencies of `cam`","Message-ID":"<20260206005502.GH1376807@killaraus.ideasonboard.com>","References":"<20260130111133.1576210-1-barnabas.pocze@ideasonboard.com>","MIME-Version":"1.0","Content-Type":"text/plain; charset=utf-8","Content-Disposition":"inline","Content-Transfer-Encoding":"8bit","In-Reply-To":"<20260130111133.1576210-1-barnabas.pocze@ideasonboard.com>","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":38110,"web_url":"https://patchwork.libcamera.org/comment/38110/","msgid":"<177033986958.1808100.10547193088372648212@ping.linuxembedded.co.uk>","date":"2026-02-06T01:04:29","subject":"Re: [PATCH v1] meson: Add options to control drm, sdl2,\n\tjpeg dependencies of `cam`","submitter":{"id":4,"url":"https://patchwork.libcamera.org/api/people/4/","name":"Kieran Bingham","email":"kieran.bingham@ideasonboard.com"},"content":"Quoting Laurent Pinchart (2026-02-06 00:55:02)\n> On Fri, Jan 30, 2026 at 12:11:33PM +0100, Barnabás Pőcze wrote:\n> > Previously it was not possible to control these dependencies, they were\n> > always used if found. Furthermore, libjpeg was unnecessarily added as a\n> > dependency even if sdl2 was not found. Fix that by introducing three\n> > options to control the dependencies.\n> > \n> > Signed-off-by: Barnabás Pőcze \n> > ---\n> > meson_options.txt | 15 +++++++++++++++\n> > src/apps/cam/meson.build | 36 ++++++++++++++++++++++--------------\n> > 2 files changed, 37 insertions(+), 14 deletions(-)\n> > \n> > diff --git a/meson_options.txt b/meson_options.txt\n> > index 8121cf5d2..58cf52ad1 100644\n> > --- a/meson_options.txt\n> > +++ b/meson_options.txt\n> > @@ -16,6 +16,21 @@ option('cam',\n> > value : 'auto',\n> > description : 'Compile the cam test application')\n> > \n> > +option('cam-output-kms',\n> > + type : 'feature',\n> > + value : 'auto',\n> > + description : 'Enable KMS output in the cam application')\n> > +\n> > +option('cam-output-sdl2',\n> > + type : 'feature',\n> > + value : 'auto',\n> > + description : 'Enable SDL2 output in the cam application')\n> > +\n> > +option('cam-output-sdl2-jpeg',\n> > + type : 'feature',\n> > + value : 'auto',\n> > + description : 'Enable JPEG support in the SDL2 output in the cam application')\n> > +\n> > option('documentation',\n> > type : 'feature',\n> > value : 'auto',\n> > diff --git a/src/apps/cam/meson.build b/src/apps/cam/meson.build\n> > index cd7f120f9..c73c0f5d9 100644\n> > --- a/src/apps/cam/meson.build\n> > +++ b/src/apps/cam/meson.build\n> > @@ -17,9 +17,18 @@ cam_sources = files([\n> > \n> > cam_cpp_args = [apps_cpp_args]\n> > \n> > -libdrm = dependency('libdrm', required : false)\n> > -libjpeg = dependency('libjpeg', required : false)\n> > -libsdl2 = dependency('SDL2', required : false)\n> > +cam_deps = [\n> > + libatomic,\n> > + libcamera_public,\n> > + libevent,\n> > + libthreads,\n> > + libyaml,\n> > + libtiff,\n> > +]\n> > +\n> > +libdrm = dependency('libdrm', required : get_option('cam-output-kms'))\n> > +libsdl2 = dependency('SDL2', required : get_option('cam-output-sdl2'))\n> > +libjpeg = dependency('libjpeg', required : get_option('cam-output-sdl2-jpeg'))\n> \n> I wonder if we could combine the cam-output-sdl2 and\n> cam-output-sdl2-jpeg options here to avoid looking up libjpeg if SDL2 is\n> disabled, but it's probably not worth it.\n> \n> Actually, I think we should support JPEG decompression with the KMS\n> output as well, in which case the option would become cam-jpeg (or\n> something similar). We could already name it like that, to avoid\n> renaming it later.\n\nWhy not call these options more direct matches? We also have libjpeg\nusage in the virtual pipeline handler:\n\n -Dlibjpeg=enabled -DSDL2=enabled -Dlibdrm=disabled\n\nand EGL might have a hidden dependency on libdrm:\n\nsrc/libcamera/egl.cpp:#include \n\n\n> \n> With that,\n> \n> Reviewed-by: Laurent Pinchart \n\nI won't object to these though! Above is only a thought/comment.\n\n> \n> > \n> > if libdrm.found()\n> > cam_cpp_args += [ '-DHAVE_KMS' ]\n> > @@ -27,6 +36,9 @@ if libdrm.found()\n> > 'drm.cpp',\n> > 'kms_sink.cpp'\n> > ])\n> > + cam_deps += [\n> > + libdrm,\n> > + ]\n> > endif\n> > \n> > if libsdl2.found()\n> > @@ -37,28 +49,24 @@ if libsdl2.found()\n> > 'sdl_texture_1plane.cpp',\n> > 'sdl_texture_yuv.cpp',\n> > ])\n> > + cam_deps += [\n> > + libsdl2,\n> > + ]\n> > \n> > if libjpeg.found()\n> > cam_cpp_args += ['-DHAVE_LIBJPEG']\n> > cam_sources += files([\n> > 'sdl_texture_mjpg.cpp'\n> > ])\n> > + cam_deps += [\n> > + libjpeg,\n> > + ]\n> > endif\n> > endif\n> > \n> > cam = executable('cam', cam_sources,\n> > link_with : apps_lib,\n> > - dependencies : [\n> > - libatomic,\n> > - libcamera_public,\n> > - libdrm,\n> > - libevent,\n> > - libjpeg,\n> > - libsdl2,\n> > - libtiff,\n> > - libthreads,\n> > - libyaml,\n> > - ],\n> > + dependencies : cam_deps,\n> > cpp_args : cam_cpp_args,\n> > install : true,\n> > install_tag : 'bin')\n> \n> -- \n> Regards,\n> \n> Laurent Pinchart","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id EFAFBBD78E\n\tfor ;\n\tFri, 6 Feb 2026 01:04:34 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id E070F62078;\n\tFri, 6 Feb 2026 02:04:33 +0100 (CET)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 9BCF361FBF\n\tfor ;\n\tFri, 6 Feb 2026 02:04:32 +0100 (CET)","from monstersaurus.ideasonboard.com\n\t(cpc89244-aztw30-2-0-cust6594.18-1.cable.virginm.net [86.31.185.195])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 2D7BC460;\n\tFri, 6 Feb 2026 02:03:49 +0100 (CET)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"j4PRSegU\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1770339829;\n\tbh=9j9p1O6NaiqLj36qcYN9J8LVW0vAxSYVSo8fkiPhr/U=;\n\th=In-Reply-To:References:Subject:From:Cc:To:Date:From;\n\tb=j4PRSegUlZtRytRTR5gP722A5tRwJhGX+f7nKmH8wivc9qO1VgljVdyT2aMRF0nBM\n\tEq/evthLwsrSrhAKA0cLWI5czcWAwjhxlTeL9uhwD0lldJb/+A7mwTtWxc3LOTaP++\n\tViIDaSU3IiQ8tEc8yuXPptslr3qdSZ8tic6QVGHo=","Content-Type":"text/plain; charset=\"utf-8\"","MIME-Version":"1.0","Content-Transfer-Encoding":"quoted-printable","In-Reply-To":"<20260206005502.GH1376807@killaraus.ideasonboard.com>","References":"<20260130111133.1576210-1-barnabas.pocze@ideasonboard.com>\n\t<20260206005502.GH1376807@killaraus.ideasonboard.com>","Subject":"Re: [PATCH v1] meson: Add options to control drm, sdl2,\n\tjpeg dependencies of `cam`","From":"Kieran Bingham ","Cc":"libcamera-devel@lists.libcamera.org","To":"=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= ,\n\tLaurent Pinchart ","Date":"Fri, 06 Feb 2026 01:04:29 +0000","Message-ID":"<177033986958.1808100.10547193088372648212@ping.linuxembedded.co.uk>","User-Agent":"alot/0.9.1","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":38112,"web_url":"https://patchwork.libcamera.org/comment/38112/","msgid":"<20260206011443.GI1376807@killaraus.ideasonboard.com>","date":"2026-02-06T01:14:43","subject":"Re: [PATCH v1] meson: Add options to control drm, sdl2, jpeg\n\tdependencies of `cam`","submitter":{"id":2,"url":"https://patchwork.libcamera.org/api/people/2/","name":"Laurent Pinchart","email":"laurent.pinchart@ideasonboard.com"},"content":"On Fri, Feb 06, 2026 at 01:04:29AM +0000, Kieran Bingham wrote:\n> Quoting Laurent Pinchart (2026-02-06 00:55:02)\n> > On Fri, Jan 30, 2026 at 12:11:33PM +0100, Barnabás Pőcze wrote:\n> > > Previously it was not possible to control these dependencies, they were\n> > > always used if found. Furthermore, libjpeg was unnecessarily added as a\n> > > dependency even if sdl2 was not found. Fix that by introducing three\n> > > options to control the dependencies.\n> > > \n> > > Signed-off-by: Barnabás Pőcze \n> > > ---\n> > > meson_options.txt | 15 +++++++++++++++\n> > > src/apps/cam/meson.build | 36 ++++++++++++++++++++++--------------\n> > > 2 files changed, 37 insertions(+), 14 deletions(-)\n> > > \n> > > diff --git a/meson_options.txt b/meson_options.txt\n> > > index 8121cf5d2..58cf52ad1 100644\n> > > --- a/meson_options.txt\n> > > +++ b/meson_options.txt\n> > > @@ -16,6 +16,21 @@ option('cam',\n> > > value : 'auto',\n> > > description : 'Compile the cam test application')\n> > > \n> > > +option('cam-output-kms',\n> > > + type : 'feature',\n> > > + value : 'auto',\n> > > + description : 'Enable KMS output in the cam application')\n> > > +\n> > > +option('cam-output-sdl2',\n> > > + type : 'feature',\n> > > + value : 'auto',\n> > > + description : 'Enable SDL2 output in the cam application')\n> > > +\n> > > +option('cam-output-sdl2-jpeg',\n> > > + type : 'feature',\n> > > + value : 'auto',\n> > > + description : 'Enable JPEG support in the SDL2 output in the cam application')\n> > > +\n> > > option('documentation',\n> > > type : 'feature',\n> > > value : 'auto',\n> > > diff --git a/src/apps/cam/meson.build b/src/apps/cam/meson.build\n> > > index cd7f120f9..c73c0f5d9 100644\n> > > --- a/src/apps/cam/meson.build\n> > > +++ b/src/apps/cam/meson.build\n> > > @@ -17,9 +17,18 @@ cam_sources = files([\n> > > \n> > > cam_cpp_args = [apps_cpp_args]\n> > > \n> > > -libdrm = dependency('libdrm', required : false)\n> > > -libjpeg = dependency('libjpeg', required : false)\n> > > -libsdl2 = dependency('SDL2', required : false)\n> > > +cam_deps = [\n> > > + libatomic,\n> > > + libcamera_public,\n> > > + libevent,\n> > > + libthreads,\n> > > + libyaml,\n> > > + libtiff,\n> > > +]\n> > > +\n> > > +libdrm = dependency('libdrm', required : get_option('cam-output-kms'))\n> > > +libsdl2 = dependency('SDL2', required : get_option('cam-output-sdl2'))\n> > > +libjpeg = dependency('libjpeg', required : get_option('cam-output-sdl2-jpeg'))\n> > \n> > I wonder if we could combine the cam-output-sdl2 and\n> > cam-output-sdl2-jpeg options here to avoid looking up libjpeg if SDL2 is\n> > disabled, but it's probably not worth it.\n> > \n> > Actually, I think we should support JPEG decompression with the KMS\n> > output as well, in which case the option would become cam-jpeg (or\n> > something similar). We could already name it like that, to avoid\n> > renaming it later.\n> \n> Why not call these options more direct matches? We also have libjpeg\n> usage in the virtual pipeline handler:\n> \n> -Dlibjpeg=enabled -DSDL2=enabled -Dlibdrm=disabled\n\nWe may want to for instance enable JPEG support in cam but not in the\nvirtual pipeline handler. I think focussing on the features we enable\ninstead of the dependency is clearer for the user (but I could be\nwrong).\n\n> and EGL might have a hidden dependency on libdrm:\n> \n> src/libcamera/egl.cpp:#include \n\nThe main problem with hidden dependencies is linking to shared library,\nso this one is likely not an issue in practice. This being said, we\ncould use our own copy of drm_fourcc.h.\n\n> > With that,\n> > \n> > Reviewed-by: Laurent Pinchart \n> \n> I won't object to these though! Above is only a thought/comment.\n> \n> > > \n> > > if libdrm.found()\n> > > cam_cpp_args += [ '-DHAVE_KMS' ]\n> > > @@ -27,6 +36,9 @@ if libdrm.found()\n> > > 'drm.cpp',\n> > > 'kms_sink.cpp'\n> > > ])\n> > > + cam_deps += [\n> > > + libdrm,\n> > > + ]\n> > > endif\n> > > \n> > > if libsdl2.found()\n> > > @@ -37,28 +49,24 @@ if libsdl2.found()\n> > > 'sdl_texture_1plane.cpp',\n> > > 'sdl_texture_yuv.cpp',\n> > > ])\n> > > + cam_deps += [\n> > > + libsdl2,\n> > > + ]\n> > > \n> > > if libjpeg.found()\n> > > cam_cpp_args += ['-DHAVE_LIBJPEG']\n> > > cam_sources += files([\n> > > 'sdl_texture_mjpg.cpp'\n> > > ])\n> > > + cam_deps += [\n> > > + libjpeg,\n> > > + ]\n> > > endif\n> > > endif\n> > > \n> > > cam = executable('cam', cam_sources,\n> > > link_with : apps_lib,\n> > > - dependencies : [\n> > > - libatomic,\n> > > - libcamera_public,\n> > > - libdrm,\n> > > - libevent,\n> > > - libjpeg,\n> > > - libsdl2,\n> > > - libtiff,\n> > > - libthreads,\n> > > - libyaml,\n> > > - ],\n> > > + dependencies : cam_deps,\n> > > cpp_args : cam_cpp_args,\n> > > install : true,\n> > > install_tag : 'bin')","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 229A0BD78E\n\tfor ;\n\tFri, 6 Feb 2026 01:14:48 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 345FE6207C;\n\tFri, 6 Feb 2026 02:14:47 +0100 (CET)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 735FE61FBF\n\tfor ;\n\tFri, 6 Feb 2026 02:14:45 +0100 (CET)","from killaraus.ideasonboard.com\n\t(2001-14ba-703d-e500--2a1.rev.dnainternet.fi\n\t[IPv6:2001:14ba:703d:e500::2a1])\n\tby perceval.ideasonboard.com (Postfix) with UTF8SMTPSA id D61FCA06;\n\tFri, 6 Feb 2026 02:14:01 +0100 (CET)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"MMat/5DI\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1770340442;\n\tbh=KOCCfhicK/pR7m7ZDFsz7NNDb9Ja70uWglpi1YUwDUE=;\n\th=Date:From:To:Cc:Subject:References:In-Reply-To:From;\n\tb=MMat/5DIhU2DwWPjh1X2UKGPyPoreZcp3pCcwr4rwrQ9g9ytwmdlInPjInZb/C8jW\n\tPihu6FPGEGmLGryCYwih6U04WrG2cXO1o7QWpEZx/Bzvozya5XkHWixB+L53nyfoxU\n\trlPcQgT+9hfwghBMJMOI/2mpXztk7MSr3IsSopy0=","Date":"Fri, 6 Feb 2026 03:14:43 +0200","From":"Laurent Pinchart ","To":"Kieran Bingham ","Cc":"=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= ,\n\tlibcamera-devel@lists.libcamera.org","Subject":"Re: [PATCH v1] meson: Add options to control drm, sdl2, jpeg\n\tdependencies of `cam`","Message-ID":"<20260206011443.GI1376807@killaraus.ideasonboard.com>","References":"<20260130111133.1576210-1-barnabas.pocze@ideasonboard.com>\n\t<20260206005502.GH1376807@killaraus.ideasonboard.com>\n\t<177033986958.1808100.10547193088372648212@ping.linuxembedded.co.uk>","MIME-Version":"1.0","Content-Type":"text/plain; charset=utf-8","Content-Disposition":"inline","Content-Transfer-Encoding":"8bit","In-Reply-To":"<177033986958.1808100.10547193088372648212@ping.linuxembedded.co.uk>","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":38114,"web_url":"https://patchwork.libcamera.org/comment/38114/","msgid":"","date":"2026-02-06T08:06:31","subject":"Re: [PATCH v1] meson: Add options to control drm, sdl2, jpeg\n\tdependencies of `cam`","submitter":{"id":216,"url":"https://patchwork.libcamera.org/api/people/216/","name":"Barnabás Pőcze","email":"barnabas.pocze@ideasonboard.com"},"content":"2026. 02. 06. 2:14 keltezéssel, Laurent Pinchart írta:\n> On Fri, Feb 06, 2026 at 01:04:29AM +0000, Kieran Bingham wrote:\n>> Quoting Laurent Pinchart (2026-02-06 00:55:02)\n>>> On Fri, Jan 30, 2026 at 12:11:33PM +0100, Barnabás Pőcze wrote:\n>>>> Previously it was not possible to control these dependencies, they were\n>>>> always used if found. Furthermore, libjpeg was unnecessarily added as a\n>>>> dependency even if sdl2 was not found. Fix that by introducing three\n>>>> options to control the dependencies.\n>>>>\n>>>> Signed-off-by: Barnabás Pőcze \n>>>> ---\n>>>> meson_options.txt | 15 +++++++++++++++\n>>>> src/apps/cam/meson.build | 36 ++++++++++++++++++++++--------------\n>>>> 2 files changed, 37 insertions(+), 14 deletions(-)\n>>>>\n>>>> diff --git a/meson_options.txt b/meson_options.txt\n>>>> index 8121cf5d2..58cf52ad1 100644\n>>>> --- a/meson_options.txt\n>>>> +++ b/meson_options.txt\n>>>> @@ -16,6 +16,21 @@ option('cam',\n>>>> value : 'auto',\n>>>> description : 'Compile the cam test application')\n>>>> \n>>>> +option('cam-output-kms',\n>>>> + type : 'feature',\n>>>> + value : 'auto',\n>>>> + description : 'Enable KMS output in the cam application')\n>>>> +\n>>>> +option('cam-output-sdl2',\n>>>> + type : 'feature',\n>>>> + value : 'auto',\n>>>> + description : 'Enable SDL2 output in the cam application')\n>>>> +\n>>>> +option('cam-output-sdl2-jpeg',\n>>>> + type : 'feature',\n>>>> + value : 'auto',\n>>>> + description : 'Enable JPEG support in the SDL2 output in the cam application')\n>>>> +\n>>>> option('documentation',\n>>>> type : 'feature',\n>>>> value : 'auto',\n>>>> diff --git a/src/apps/cam/meson.build b/src/apps/cam/meson.build\n>>>> index cd7f120f9..c73c0f5d9 100644\n>>>> --- a/src/apps/cam/meson.build\n>>>> +++ b/src/apps/cam/meson.build\n>>>> @@ -17,9 +17,18 @@ cam_sources = files([\n>>>> \n>>>> cam_cpp_args = [apps_cpp_args]\n>>>> \n>>>> -libdrm = dependency('libdrm', required : false)\n>>>> -libjpeg = dependency('libjpeg', required : false)\n>>>> -libsdl2 = dependency('SDL2', required : false)\n>>>> +cam_deps = [\n>>>> + libatomic,\n>>>> + libcamera_public,\n>>>> + libevent,\n>>>> + libthreads,\n>>>> + libyaml,\n>>>> + libtiff,\n>>>> +]\n>>>> +\n>>>> +libdrm = dependency('libdrm', required : get_option('cam-output-kms'))\n>>>> +libsdl2 = dependency('SDL2', required : get_option('cam-output-sdl2'))\n>>>> +libjpeg = dependency('libjpeg', required : get_option('cam-output-sdl2-jpeg'))\n>>>\n>>> I wonder if we could combine the cam-output-sdl2 and\n>>> cam-output-sdl2-jpeg options here to avoid looking up libjpeg if SDL2 is\n>>> disabled, but it's probably not worth it.\n>>>\n>>> Actually, I think we should support JPEG decompression with the KMS\n>>> output as well, in which case the option would become cam-jpeg (or\n>>> something similar). We could already name it like that, to avoid\n>>> renaming it later.\n>>\n>> Why not call these options more direct matches? We also have libjpeg\n>> usage in the virtual pipeline handler:\n>>\n>> -Dlibjpeg=enabled -DSDL2=enabled -Dlibdrm=disabled\n> \n> We may want to for instance enable JPEG support in cam but not in the\n> virtual pipeline handler. I think focussing on the features we enable\n> instead of the dependency is clearer for the user (but I could be\n> wrong).\n\nThis is indeed the motivation. I also think it is more useful to be\nable to say \"I want this feature of this component\" instead of having\nto list a (potentially changing) list of dependency names (that might\nalso enable some other unwanted things).\n\nAlthough admittedly it results in a somewhat more complicated dependency\nmanagement than having a single global switch for each.\n\nThoughts? Should we go with \"feature options control features components\"\nor \"feature options control specific dependencies\"?\n\n\n> \n>> and EGL might have a hidden dependency on libdrm:\n>>\n>> src/libcamera/egl.cpp:#include \n> \n> The main problem with hidden dependencies is linking to shared library,\n> so this one is likely not an issue in practice. This being said, we\n> could use our own copy of drm_fourcc.h.\n> \n>>> With that,\n>>>\n>>> Reviewed-by: Laurent Pinchart \n>>\n>> I won't object to these though! Above is only a thought/comment.\n>>\n>>>> \n>>>> if libdrm.found()\n>>>> cam_cpp_args += [ '-DHAVE_KMS' ]\n>>>> @@ -27,6 +36,9 @@ if libdrm.found()\n>>>> 'drm.cpp',\n>>>> 'kms_sink.cpp'\n>>>> ])\n>>>> + cam_deps += [\n>>>> + libdrm,\n>>>> + ]\n>>>> endif\n>>>> \n>>>> if libsdl2.found()\n>>>> @@ -37,28 +49,24 @@ if libsdl2.found()\n>>>> 'sdl_texture_1plane.cpp',\n>>>> 'sdl_texture_yuv.cpp',\n>>>> ])\n>>>> + cam_deps += [\n>>>> + libsdl2,\n>>>> + ]\n>>>> \n>>>> if libjpeg.found()\n>>>> cam_cpp_args += ['-DHAVE_LIBJPEG']\n>>>> cam_sources += files([\n>>>> 'sdl_texture_mjpg.cpp'\n>>>> ])\n>>>> + cam_deps += [\n>>>> + libjpeg,\n>>>> + ]\n>>>> endif\n>>>> endif\n>>>> \n>>>> cam = executable('cam', cam_sources,\n>>>> link_with : apps_lib,\n>>>> - dependencies : [\n>>>> - libatomic,\n>>>> - libcamera_public,\n>>>> - libdrm,\n>>>> - libevent,\n>>>> - libjpeg,\n>>>> - libsdl2,\n>>>> - libtiff,\n>>>> - libthreads,\n>>>> - libyaml,\n>>>> - ],\n>>>> + dependencies : cam_deps,\n>>>> cpp_args : cam_cpp_args,\n>>>> install : true,\n>>>> install_tag : 'bin')\n>","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id BA66CBD78E\n\tfor ;\n\tFri, 6 Feb 2026 08:06:39 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id A0C8F6207D;\n\tFri, 6 Feb 2026 09:06:38 +0100 (CET)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 8D23F61FC6\n\tfor ;\n\tFri, 6 Feb 2026 09:06:36 +0100 (CET)","from [192.168.33.58] (185.221.141.206.nat.pool.zt.hu\n\t[185.221.141.206])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 9C1EF63B;\n\tFri, 6 Feb 2026 09:05:52 +0100 (CET)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"nEGbwmQE\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1770365153;\n\tbh=M2slGmXLzGd8SsXWp9Bhdj9nFpcpjFyB8LIMhRhi6LM=;\n\th=Date:Subject:To:Cc:References:From:In-Reply-To:From;\n\tb=nEGbwmQE828ew38Cjy0EuJgbsl90ruzA4eM9gHJomrqW+CV2P68YJzUQdu1yjZ44R\n\tIAUQSTOtwjhiOGEYXpExrTx0v+7gx+SSbHaDVZ2DB3Gv2wQPmEzgEUmGUkjhdiFsih\n\t5Hyncp+9v609pLf/mtgdlt4L8W8FmNDJEtqaCuFU=","Message-ID":"","Date":"Fri, 6 Feb 2026 09:06:31 +0100","MIME-Version":"1.0","User-Agent":"Mozilla Thunderbird","Subject":"Re: [PATCH v1] meson: Add options to control drm, sdl2, jpeg\n\tdependencies of `cam`","To":"Laurent Pinchart ,\n\tKieran Bingham ","Cc":"libcamera-devel@lists.libcamera.org","References":"<20260130111133.1576210-1-barnabas.pocze@ideasonboard.com>\n\t<20260206005502.GH1376807@killaraus.ideasonboard.com>\n\t<177033986958.1808100.10547193088372648212@ping.linuxembedded.co.uk>\n\t<20260206011443.GI1376807@killaraus.ideasonboard.com>","From":"=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= ","Content-Language":"en-US, hu-HU","In-Reply-To":"<20260206011443.GI1376807@killaraus.ideasonboard.com>","Content-Type":"text/plain; charset=UTF-8; format=flowed","Content-Transfer-Encoding":"8bit","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}}]