From patchwork Tue May 19 03:24:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 3813 X-Patchwork-Delegate: laurent.pinchart@ideasonboard.com Return-Path: Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 3575D60E44 for ; Tue, 19 May 2020 05:25:19 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="LszftT3t"; dkim-atps=neutral Received: from pendragon.bb.dnainternet.fi (81-175-216-236.bb.dnainternet.fi [81.175.216.236]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id CA87D30C for ; Tue, 19 May 2020 05:25:18 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1589858719; bh=f1jXq/4rvugginWdAETolbk2dXRKTvSR11MQj/WFbu8=; h=From:To:Subject:Date:In-Reply-To:References:From; b=LszftT3tAQAvyDCTJK6JHG0ZVQJEYAEElk6vOcS7y2buX1j8BtNcA/DL+QuvMz/Y2 k7hMf2BYXcOspSg308k74WVcmkOzd4KBzDJG/bXuzmPENjx6ikei5JVcRoT+d9gnjI 3ffI5Zoj2tugGs59zIQs+UmECJ+I8BQLYuWbT4Hc= From: Laurent Pinchart To: libcamera-devel@lists.libcamera.org Date: Tue, 19 May 2020 06:24:59 +0300 Message-Id: <20200519032505.17307-3-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200519032505.17307-1-laurent.pinchart@ideasonboard.com> References: <20200519032505.17307-1-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH 2/8] cam: Add FrameSink base class 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: , X-List-Received-Date: Tue, 19 May 2020 03:25:20 -0000 The FrameSink class serves as a base to implement components that consume frames. This allows handling frame sinks in a generic way, independent of their nature. The BufferWrite class will be ported to FrameSink in a second step. Signed-off-by: Laurent Pinchart Reviewed-by: Niklas Söderlund --- src/cam/frame_sink.cpp | 31 +++++++++++++++++++++++++++++++ src/cam/frame_sink.h | 35 +++++++++++++++++++++++++++++++++++ src/cam/meson.build | 1 + 3 files changed, 67 insertions(+) create mode 100644 src/cam/frame_sink.cpp create mode 100644 src/cam/frame_sink.h diff --git a/src/cam/frame_sink.cpp b/src/cam/frame_sink.cpp new file mode 100644 index 000000000000..fbe16e2f5081 --- /dev/null +++ b/src/cam/frame_sink.cpp @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2020, Ideas on Board Oy + * + * frame_sink.cpp - Base Frame Sink Class + */ + +#include "frame_sink.h" + +FrameSink::~FrameSink() +{ +} + +int FrameSink::configure(const libcamera::CameraConfiguration &config) +{ + return 0; +} + +void FrameSink::mapBuffer(libcamera::FrameBuffer *buffer) +{ +} + +int FrameSink::start() +{ + return 0; +} + +int FrameSink::stop() +{ + return 0; +} diff --git a/src/cam/frame_sink.h b/src/cam/frame_sink.h new file mode 100644 index 000000000000..39604a07eb70 --- /dev/null +++ b/src/cam/frame_sink.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2020, Ideas on Board Oy + * + * frame_sink.h - Base Frame Sink Class + */ +#ifndef __CAM_FRAME_SINK_H__ +#define __CAM_FRAME_SINK_H__ + +#include + +namespace libcamera { +class CameraConfiguration; +class FrameBuffer; +class Stream; +} /* namespace libcamera */ + +class FrameSink +{ +public: + virtual ~FrameSink(); + + virtual int configure(const libcamera::CameraConfiguration &config); + + virtual void mapBuffer(libcamera::FrameBuffer *buffer); + + virtual int start(); + virtual int stop(); + + virtual bool consumeBuffer(const libcamera::Stream *stream, + libcamera::FrameBuffer *buffer) = 0; + libcamera::Signal bufferReleased; +}; + +#endif /* __CAM_FRAME_SINK_H__ */ diff --git a/src/cam/meson.build b/src/cam/meson.build index 89e124fbae2a..d7b72ec02f8c 100644 --- a/src/cam/meson.build +++ b/src/cam/meson.build @@ -4,6 +4,7 @@ cam_sources = files([ 'buffer_writer.cpp', 'capture.cpp', 'event_loop.cpp', + 'frame_sink.cpp', 'main.cpp', 'options.cpp', 'stream_options.cpp',