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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* libcamera V4L2 M2M video device tests
*/
#include <iostream>
#include <libcamera/framebuffer.h>
#include <libcamera/base/event_dispatcher.h>
#include <libcamera/base/thread.h>
#include <libcamera/base/timer.h>
#include "libcamera/internal/device_enumerator.h"
#include "libcamera/internal/media_device.h"
#include "libcamera/internal/v4l2_videodevice.h"
#include "test.h"
using namespace libcamera;
using namespace std;
using namespace std::chrono_literals;
class V4L2M2MDeviceTest : public Test
{
public:
V4L2M2MDeviceTest()
: vim2m_(nullptr), outputFrames_(0), captureFrames_(0)
{
}
void outputBufferComplete(FrameBuffer *buffer)
{
cout << "Received output buffer" << endl;
outputFrames_++;
/* Requeue the buffer for further use. */
vim2m_->output()->queueBuffer(buffer);
}
void receiveCaptureBuffer(FrameBuffer *buffer)
{
cout << "Received capture buffer" << endl;
captureFrames_++;
/* Requeue the buffer for further use. */
vim2m_->capture()->queueBuffer(buffer);
}
protected:
int init()
{
enumerator_ = DeviceEnumerator::create();
if (!enumerator_) {
cerr << "Failed to create device enumerator" << endl;
return TestFail;
}
if (enumerator_->enumerate()) {
cerr << "Failed to enumerate media devices" << endl;
return TestFail;
}
MediaDeviceMatch dm("vim2m");
dm.add("vim2m-source");
dm.add("vim2m-sink");
media_ = enumerator_->search(dm);
if (!media_) {
cerr << "No vim2m device found" << endl;
return TestSkip;
}
return TestPass;
}
int run()
{
constexpr unsigned int bufferCount = 4;
EventDispatcher *dispatcher = Thread::current()->eventDispatcher();
int ret;
MediaEntity *entity = media_->getEntityByName("vim2m-source");
vim2m_ = new V4L2M2MDevice(entity->deviceNode());
if (vim2m_->open()) {
cerr << "Failed to open VIM2M device" << endl;
return TestFail;
}
V4L2VideoDevice *capture = vim2m_->capture();
V4L2VideoDevice *output = vim2m_->output();
if (capture->controls().empty() || output->controls().empty()) {
cerr << "VIM2M device has no control" << endl;
return TestFail;
}
V4L2DeviceFormat format = {};
if (capture->getFormat(&format)) {
cerr << "Failed to get capture format" << endl;
return TestFail;
}
format.size.width = 640;
format.size.height = 480;
if (capture->setFormat(&format)) {
cerr << "Failed to set capture format" << endl;
return TestFail;
}
if (output->setFormat(&format)) {
cerr << "Failed to set output format" << endl;
return TestFail;
}
ret = capture->allocateBuffers(bufferCount, &captureBuffers_);
if (ret < 0) {
cerr << "Failed to allocate Capture Buffers" << endl;
return TestFail;
}
ret = output->allocateBuffers(bufferCount, &outputBuffers_);
if (ret < 0) {
cerr << "Failed to allocate Output Buffers" << endl;
return TestFail;
}
capture->bufferReady.connect(this, &V4L2M2MDeviceTest::receiveCaptureBuffer);
output->bufferReady.connect(this, &V4L2M2MDeviceTest::outputBufferComplete);
for (const std::unique_ptr<FrameBuffer> &buffer : captureBuffers_) {
if (capture->queueBuffer(buffer.get())) {
std::cout << "Failed to queue capture buffer" << std::endl;
return TestFail;
}
}
for (const std::unique_ptr<FrameBuffer> &buffer : outputBuffers_) {
if (output->queueBuffer(buffer.get())) {
std::cout << "Failed to queue output buffer" << std::endl;
return TestFail;
}
}
ret = capture->streamOn();
if (ret) {
cerr << "Failed to streamOn capture" << endl;
return TestFail;
}
ret = output->streamOn();
if (ret) {
cerr << "Failed to streamOn output" << endl;
return TestFail;
}
Timer timeout;
timeout.start(5000ms);
while (timeout.isRunning()) {
dispatcher->processEvents();
if (captureFrames_ > 30)
break;
}
cerr << "Output " << outputFrames_ << " frames" << std::endl;
cerr << "Captured " << captureFrames_ << " frames" << std::endl;
if (captureFrames_ < 30) {
cerr << "Failed to capture 30 frames within timeout." << std::endl;
return TestFail;
}
ret = capture->streamOff();
if (ret) {
cerr << "Failed to StreamOff the capture device." << std::endl;
return TestFail;
}
ret = output->streamOff();
if (ret) {
cerr << "Failed to StreamOff the output device." << std::endl;
return TestFail;
}
return TestPass;
}
void cleanup()
{
delete vim2m_;
}
private:
std::unique_ptr<DeviceEnumerator> enumerator_;
std::shared_ptr<MediaDevice> media_;
V4L2M2MDevice *vim2m_;
std::vector<std::unique_ptr<FrameBuffer>> captureBuffers_;
std::vector<std::unique_ptr<FrameBuffer>> outputBuffers_;
unsigned int outputFrames_;
unsigned int captureFrames_;
};
TEST_REGISTER(V4L2M2MDeviceTest)
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