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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2022, Ideas on Board Oy.
*
* libcamera V4L2 dequeue watchdog test
*/
#include <iostream>
#include <libcamera/base/event_dispatcher.h>
#include <libcamera/base/thread.h>
#include <libcamera/base/timer.h>
#include <libcamera/framebuffer.h>
#include "v4l2_videodevice_test.h"
using namespace libcamera;
using namespace std::chrono_literals;
class DequeueWatchdogTest : public V4L2VideoDeviceTest
{
public:
DequeueWatchdogTest()
: V4L2VideoDeviceTest("vimc", "Raw Capture 0"), frames_(0), barks_(0) {}
protected:
int run()
{
constexpr unsigned int bufferCount = 8;
EventDispatcher *dispatcher = Thread::current()->eventDispatcher();
Timer timeout;
int ret = capture_->allocateBuffers(bufferCount, &buffers_);
if (ret < 0)
return TestFail;
capture_->dequeueTimeout.connect(this, &DequeueWatchdogTest::barkCounter);
capture_->setDequeueTimeout(5ms);
capture_->bufferReady.connect(this, &DequeueWatchdogTest::receiveBuffer);
for (const std::unique_ptr<FrameBuffer> &buffer : buffers_) {
if (capture_->queueBuffer(buffer.get())) {
std::cout << "Failed to queue buffer" << std::endl;
return TestFail;
}
}
capture_->streamOn();
timeout.start(5s);
while (timeout.isRunning()) {
dispatcher->processEvents();
if (frames_ > 5)
break;
}
std::cout << "Processed " << frames_ << " frames_ and heard "
<< barks_ << " barks_" << std::endl;
if (!barks_) {
std::cout << "Failed to hear any barks_." << std::endl;
return TestFail;
}
capture_->streamOff();
return TestPass;
}
private:
void receiveBuffer(FrameBuffer *buffer)
{
if (buffer->metadata().status == FrameMetadata::FrameCancelled)
return;
std::cout << "Buffer received" << std::endl;
frames_++;
/* Requeue the buffer for further use. */
capture_->queueBuffer(buffer);
}
void barkCounter()
{
std::cout << "Watchdog is barking" << std::endl;
barks_++;
}
unsigned int frames_;
unsigned int barks_;
};
TEST_REGISTER(DequeueWatchdogTest)
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