From patchwork Mon May 26 10:15:22 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Milan Zamazal X-Patchwork-Id: 23433 Return-Path: X-Original-To: parsemail@patchwork.libcamera.org Delivered-To: parsemail@patchwork.libcamera.org Received: from lancelot.ideasonboard.com (lancelot.ideasonboard.com [92.243.16.209]) by patchwork.libcamera.org (Postfix) with ESMTPS id 7132EC31E9 for ; Mon, 26 May 2025 10:15:59 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id E2A2668D93; Mon, 26 May 2025 12:15:57 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="LSJaGDCj"; dkim-atps=neutral Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 3AB5268D93 for ; Mon, 26 May 2025 12:15:52 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1748254551; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1tU2HGv41f23gChmBxR+7odxjJJ+0pgAxlVL2oYPliM=; b=LSJaGDCju0AJelM+E86/kABynsBzQHCzraYujIsl3FiBWXt3NmcCwxYBD1M8DDeV2jsXC1 R/jlm2/cD0b6/Go9aEed8Q0Kyz9qwu//FkH/dGh2ON9tiYOI2GeMIKQmP/ky3nGvXK548z 0rM1KL36fxAYmH9l/pRJQP+bxwuNx+0= Received: from mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-126-iqx2lvzJNGC9_-OZPNrNdQ-1; Mon, 26 May 2025 06:15:49 -0400 X-MC-Unique: iqx2lvzJNGC9_-OZPNrNdQ-1 X-Mimecast-MFC-AGG-ID: iqx2lvzJNGC9_-OZPNrNdQ_1748254548 Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 95CC519560AA; Mon, 26 May 2025 10:15:48 +0000 (UTC) Received: from mzamazal-thinkpadp1gen7.tpbc.com (unknown [10.45.226.78]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 39AB31800DB9; Mon, 26 May 2025 10:15:45 +0000 (UTC) From: Milan Zamazal To: libcamera-devel@lists.libcamera.org Cc: Milan Zamazal , Laurent Pinchart , Kieran Bingham , =?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= , Paul Elder Subject: [PATCH v6 02/12] libcamera: simple: Set the number of software ISP streams to 2 Date: Mon, 26 May 2025 12:15:22 +0200 Message-ID: <20250526101536.29222-3-mzamazal@redhat.com> In-Reply-To: <20250526101536.29222-1-mzamazal@redhat.com> References: <20250526101536.29222-1-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: 76maNlq6keagHlNi5-ESC-TAgI18PrNJliHExPdsi9I_1748254548 X-Mimecast-Originator: redhat.com 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: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" When software ISP is enabled, we want to be able to provide a raw stream in addition to the processed stream. For this purpose, we need two streams. If only the processed stream is requested, it doesn't harm to allocate two. This is a hack for the lack of a better easy option. The number of streams is determined as a camera property in the pipeline matching. The actual number of streams needed (one or two) is determined only when examining roles in SimplePipelineHandler::generateConfiguration. In theory, software ISP could produce multiple processed streams but this is out of scope of this patch series. Hence two streams are sufficient at the moment. When software ISP is not enabled, the camera won't be able to produce multiple streams (assuming there's no hardware converter) and only single stream should be allocated as before. The simple pipeline handler assumes there's a linear pipeline from the camera sensor to a video capture device, and only supports a single stream. Branches in the hardware pipeline that would allow capturing multiple streams from the same camera sensor are not supported. We have no plan to change that, as a device that can produce multiple streams will likely be better supported by a dedicated pipeline handler. Signed-off-by: Milan Zamazal --- src/libcamera/pipeline/simple/simple.cpp | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp index a008b13d..ab19149e 100644 --- a/src/libcamera/pipeline/simple/simple.cpp +++ b/src/libcamera/pipeline/simple/simple.cpp @@ -1710,7 +1710,16 @@ bool SimplePipelineHandler::match(DeviceEnumerator *enumerator) } } - swIspEnabled_ = info->swIspEnabled; + if (info->swIspEnabled) { + /* + * When the software ISP is enabled, the simple pipeline handler + * exposes the raw stream, giving a total of two streams. This + * is mutally exclusive with the presence of a converter. + */ + ASSERT(!converter_); + numStreams = 2; + swIspEnabled_ = true; + } /* Locate the sensors. */ std::vector sensors = locateSensors(media);