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test: v4l2_device: Use DeviceEnumerator to find a UVCVideo

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Utilise the existing DeviceEnumerator system to identify a suitable
V4L2Device for testing.

Specifically target these tests at a uvcvideo driver based device as a known
supported target.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
This commit is contained in:
Kieran Bingham 2019-01-29 15:01:18 +00:00 • committed by Laurent Pinchart
parent 83148ce8be
commit 93ec63b867
2 changed files with 38 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

38
test/v4l2_device/v4l2_device_test.cpp
View file

@ -10,6 +10,10 @@
#include "v4l2_device_test.h"
#include "device_enumerator.h"
#include "media_device.h"
using namespace std;
using namespace libcamera;
bool exists(const std::string &path)
@ -24,20 +28,40 @@ bool exists(const std::string &path)
int V4L2DeviceTest::init()
{
const std::string device("/dev/video0");
/* Validate the device node exists. */
if (!exists(device)) {
std::cout << "No video device available" << std::endl;
return TestSkip;
enumerator_ = DeviceEnumerator::create();
if (!enumerator_) {
cerr << "Failed to create device enumerator" << endl;
return TestFail;
}
dev_ = new V4L2Device(device);
if (enumerator_->enumerate()) {
cerr << "Failed to enumerate media devices" << endl;
return TestFail;
}
DeviceMatch dm("uvcvideo");
media_ = std::move(enumerator_->search(dm));
if (!media_)
return TestSkip;
media_->acquire();
for (MediaEntity *entity : media_->entities()) {
if (entity->flags() & MEDIA_ENT_FL_DEFAULT) {
dev_ = new V4L2Device(entity);
break;
}
}
if (!dev_)
return TestSkip;
return dev_->open();
}
void V4L2DeviceTest::cleanup()
{
media_->release();
delete dev_;
};

7
test/v4l2_device/v4l2_device_test.h
View file

@ -7,7 +7,12 @@
#ifndef __LIBCAMERA_V4L2_DEVICE_TEST_H_
#define __LIBCAMERA_V4L2_DEVICE_TEST_H_
#include <memory>
#include "test.h"
#include "device_enumerator.h"
#include "media_device.h"
#include "v4l2_device.h"
using namespace libcamera;
@ -21,6 +26,8 @@ protected:
int init();
void cleanup();
std::unique_ptr<DeviceEnumerator> enumerator_;
std::shared_ptr<MediaDevice> media_;
V4L2Device *dev_;
};