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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* uvcvideo.cpp - Pipeline handler for uvcvideo devices
*/
#include <libcamera/camera.h>
#include "device_enumerator.h"
#include "media_device.h"
#include "pipeline_handler.h"
#include "v4l2_device.h"
namespace libcamera {
class PipelineHandlerUVC : public PipelineHandler
{
public:
PipelineHandlerUVC(CameraManager *manager);
~PipelineHandlerUVC();
bool match(DeviceEnumerator *enumerator);
private:
std::shared_ptr<MediaDevice> media_;
V4L2Device *video_;
};
PipelineHandlerUVC::PipelineHandlerUVC(CameraManager *manager)
: PipelineHandler(manager), media_(nullptr), video_(nullptr)
{
}
PipelineHandlerUVC::~PipelineHandlerUVC()
{
if (video_)
delete video_;
if (media_)
media_->release();
}
bool PipelineHandlerUVC::match(DeviceEnumerator *enumerator)
{
DeviceMatch dm("uvcvideo");
media_ = std::move(enumerator->search(dm));
if (!media_)
return false;
media_->acquire();
for (MediaEntity *entity : media_->entities()) {
if (entity->flags() & MEDIA_ENT_FL_DEFAULT) {
video_ = new V4L2Device(*entity);
break;
}
}
if (!video_ || video_->open()) {
media_->release();
return false;
}
std::shared_ptr<Camera> camera = Camera::create(this, media_->model());
registerCamera(std::move(camera));
hotplugMediaDevice(media_.get());
return true;
}
REGISTER_PIPELINE_HANDLER(PipelineHandlerUVC);
} /* namespace libcamera */
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