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authorKieran Bingham <kieran.bingham@ideasonboard.com>2022-11-18 17:25:28 +0000
committerKieran Bingham <kieran.bingham@ideasonboard.com>2022-11-18 17:25:28 +0000
commit2b1e1cd1ab12ae951fdb320968972c5c5f783e70 (patch)
tree5d951934b284df32ac3fee4ae0cf76f4f1a49f2f /Documentation
parent0ec982d210861cc6aaebb5d6e8f1a755a16c9792 (diff)
libcamera v0.0.2
This release contains all the work merged to libcamera over the last 5 weeks, including the following summary highlights: Highlights: Core: * New pipeline handler for the IMX ISI * Fixed memory leak in the logging infrastructure * Fixed meson support for 0.56 * Additional Thread Safety annotations added throughout * Add a release method to pipeline handlers to support freeing resources when a camera is released, but not deleted. * Group test applications under src/apps * Make libdl optional to support Android builds Application layers: * Added DNG File output to cam * Fixes for building against Android * gstreamer framerate control and negotiation IPA: * Support setting metadata directly from (libipa) algorithms * Set AGC and AWB metadata for both RKISP1 and IPU3. * Support for enum serialization and Flags * Support multiple lens shading tables for different colour temperatures on RKISP1/i.MX8MP. Raspberry Pi IPA: * Full line length control * Better HBLANK synchronisation and full line length control * Support ov9281 as ov9281_mono * Update colour temperature whenever manual gains change abi-compliance-checker tells me that this release is 100% abi compatible with v0.0.1. Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * timer.cpp - Generic timer
 */

#include <libcamera/base/timer.h>

#include <chrono>

#include <libcamera/base/event_dispatcher.h>
#include <libcamera/base/log.h>
#include <libcamera/base/message.h>
#include <libcamera/base/thread.h>
#include <libcamera/base/utils.h>

#include <libcamera/camera_manager.h>

/**
 * \file base/timer.h
 * \brief Generic timer
 */

namespace libcamera {

LOG_DEFINE_CATEGORY(Timer)

/**
 * \class Timer
 * \brief Single-shot timer interface
 *
 * The Timer class models a single-shot timer that is started with start() and
 * emits the \ref timeout signal when it times out.
 *
 * Once started the timer will run until it times out. It can be stopped with
 * stop(), and once it times out or is stopped, can be started again with
 * start().
 *
 * The timer deadline is specified as either a duration in milliseconds or an
 * absolute time point. If the deadline is set to the current time or to the
 * past, the timer will time out immediately when execution returns to the
 * event loop of the timer's thread.
 *
 * Timers run in the thread they belong to, and thus emit the \a ref timeout
 * signal from that thread. To avoid race conditions they must not be started
 * or stopped from a different thread, attempts to do so will be rejected and
 * logged, and may cause undefined behaviour.
 */

/**
 * \brief Construct a timer
 * \param[in] parent The parent Object
 */
Timer::Timer(Object *parent)
	: Object(parent), running_(false)
{
}

Timer::~Timer()
{