{"id":23144,"url":"https://patchwork.libcamera.org/api/patches/23144/?format=json","web_url":"https://patchwork.libcamera.org/patch/23144/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20250407085639.16180-3-mzamazal@redhat.com>","date":"2025-04-07T08:56:28","name":"[v4,02/11] libcamera: simple: Set the number of software ISP streams to 2","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"c31356c0b36bdf0e7b2070d7ea0206697b70710a","submitter":{"id":177,"url":"https://patchwork.libcamera.org/api/people/177/?format=json","name":"Milan Zamazal","email":"mzamazal@redhat.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/23144/mbox/","series":[{"id":5117,"url":"https://patchwork.libcamera.org/api/series/5117/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=5117","date":"2025-04-07T08:56:26","name":"Enable raw streams with software ISP","version":4,"mbox":"https://patchwork.libcamera.org/series/5117/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/23144/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/23144/checks/","tags":{},"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 DE937C327D\n\tfor ;\n\tMon, 7 Apr 2025 08:57:10 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 8B6196899C;\n\tMon, 7 Apr 2025 10:57:10 +0200 (CEST)","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 9245C6899C\n\tfor ;\n\tMon, 7 Apr 2025 10:57:04 +0200 (CEST)","from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com\n\t(ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63])\n\tby relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3,\n\tcipher=TLS_AES_256_GCM_SHA384) id us-mta-440-z3NiAb1-MSWzJdvEFX3eVg-1;\n\tMon, 07 Apr 2025 04:57:02 -0400","from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com\n\t(mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com\n\t[10.30.177.111])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\tkey-exchange X25519 server-signature RSA-PSS (2048 bits)\n\tserver-digest SHA256) (No client certificate requested)\n\tby mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix)\n\twith ESMTPS id 2CF9C195608F; Mon, 7 Apr 2025 08:57:01 +0000 (UTC)","from mzamazal-thinkpadp1gen7.tpbc.com (unknown [10.45.224.129])\n\tby mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix)\n\twith ESMTP id AA39C180176A; Mon, 7 Apr 2025 08:56:58 +0000 (UTC)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=redhat.com header.i=@redhat.com\n\theader.b=\"eYpVSRzK\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n\ts=mimecast20190719; t=1744016223;\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=1tU2HGv41f23gChmBxR+7odxjJJ+0pgAxlVL2oYPliM=;\n\tb=eYpVSRzKO0YYxFqqgoBMQ3shGO+KYbX0UMKshK5KcQkBDSx1JLDmVElY4jWX5oYM8DT7wP\n\tkMf/8IqC8TSXMZvkuJPxE96S/5FA89JwvunknIpyWSYVH6HsuDicdgzqStnfe6Zh4O/R1e\n\twc9bGsz65uklo24AS4IWhsBWjSoosq4=","X-MC-Unique":"z3NiAb1-MSWzJdvEFX3eVg-1","X-Mimecast-MFC-AGG-ID":"z3NiAb1-MSWzJdvEFX3eVg_1744016221","From":"Milan Zamazal ","To":"libcamera-devel@lists.libcamera.org","Cc":"Milan Zamazal ,\n\tLaurent Pinchart ,\n\tKieran Bingham ","Subject":"[PATCH v4 02/11] libcamera: simple: Set the number of software ISP\n\tstreams to 2","Date":"Mon, 7 Apr 2025 10:56:28 +0200","Message-ID":"<20250407085639.16180-3-mzamazal@redhat.com>","In-Reply-To":"<20250407085639.16180-1-mzamazal@redhat.com>","References":"<20250407085639.16180-1-mzamazal@redhat.com>","MIME-Version":"1.0","X-Scanned-By":"MIMEDefang 3.4.1 on 10.30.177.111","X-Mimecast-Spam-Score":"0","X-Mimecast-MFC-PROC-ID":"fHQIW74oMqMDjgrm5RfmX-C5pPvRyqZWljoWL0dbVXc_1744016221","X-Mimecast-Originator":"redhat.com","Content-Transfer-Encoding":"8bit","content-type":"text/plain; charset=\"US-ASCII\"; x-default=true","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\" "},"content":"When software ISP is enabled, we want to be able to provide a raw stream\nin addition to the processed stream. For this purpose, we need two\nstreams. If only the processed stream is requested, it doesn't harm to\nallocate two.\n\nThis is a hack for the lack of a better easy option. The number of\nstreams is determined as a camera property in the pipeline matching.\nThe actual number of streams needed (one or two) is determined only when\nexamining roles in SimplePipelineHandler::generateConfiguration.\n\nIn theory, software ISP could produce multiple processed streams but\nthis is out of scope of this patch series. Hence two streams are\nsufficient at the moment.\n\nWhen software ISP is not enabled, the camera won't be able to produce\nmultiple streams (assuming there's no hardware converter) and only\nsingle stream should be allocated as before. The simple pipeline\nhandler assumes there's a linear pipeline from the camera sensor to a\nvideo capture device, and only supports a single stream. Branches in\nthe hardware pipeline that would allow capturing multiple streams from\nthe same camera sensor are not supported. We have no plan to change\nthat, as a device that can produce multiple streams will likely be\nbetter supported by a dedicated pipeline handler.\n\nSigned-off-by: Milan Zamazal \n---\n src/libcamera/pipeline/simple/simple.cpp | 11 ++++++++++-\n 1 file changed, 10 insertions(+), 1 deletion(-)","diff":"diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp\nindex a008b13d..ab19149e 100644\n--- a/src/libcamera/pipeline/simple/simple.cpp\n+++ b/src/libcamera/pipeline/simple/simple.cpp\n@@ -1710,7 +1710,16 @@ bool SimplePipelineHandler::match(DeviceEnumerator *enumerator)\n \t\t}\n \t}\n \n-\tswIspEnabled_ = info->swIspEnabled;\n+\tif (info->swIspEnabled) {\n+\t\t/*\n+\t\t * When the software ISP is enabled, the simple pipeline handler\n+\t\t * exposes the raw stream, giving a total of two streams. This\n+\t\t * is mutally exclusive with the presence of a converter.\n+\t\t */\n+\t\tASSERT(!converter_);\n+\t\tnumStreams = 2;\n+\t\tswIspEnabled_ = true;\n+\t}\n \n \t/* Locate the sensors. */\n \tstd::vector sensors = locateSensors(media);\n","prefixes":["v4","02/11"]}