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authorUmang Jain <umang.jain@ideasonboard.com>2022-07-24 20:13:53 +0530
committerUmang Jain <umang.jain@ideasonboard.com>2022-07-27 11:05:34 +0530
commitb4a3eb6b98ce65a6c9323368fa0afcb887739628 (patch)
treef641dbfa3f553d5b5cb56082fa84635a62413caf /src/ipa/raspberrypi/controller
parentc698473440abee7330c76d2370c3c01ecc48b8e3 (diff)
libcamera: camera: Fix documentation typo
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'src/ipa/raspberrypi/controller')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.1 (git 2.18.0) at 2024-08-05 17:47:16 +0000
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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * v4l2_camera.cpp - V4L2 compatibility camera
 */

#include "v4l2_camera.h"

#include <errno.h>

#include "log.h"
#include "utils.h"

using namespace libcamera;

LOG_DECLARE_CATEGORY(V4L2Compat);

FrameMetadata::FrameMetadata(Buffer *buffer)
	: index_(buffer->index()), bytesused_(buffer->bytesused()),
	  timestamp_(buffer->timestamp()), sequence_(buffer->sequence()),
	  status_(buffer->status())
{
}

V4L2Camera::V4L2Camera(std::shared_ptr<Camera> camera)
	: camera_(camera), isRunning_(false)
{
	camera_->requestCompleted.connect(this, &V4L2Camera::requestComplete);
}

V4L2Camera::~V4L2Camera()
{
	camera_->release();
}

void V4L2Camera::open(int *ret)
{
	/* \todo Support multiple open. */
	if (camera_->acquire() < 0) {
		LOG(V4L2Compat, Error) << "Failed to acquire camera";
		*ret = -EINVAL;
		return;
	}

	config_ = camera_->generateConfiguration({ StreamRole::Viewfinder });
	if (!config_) {
		camera_->release();
		*ret = -EINVAL;
		return;
	}

	*ret = 0;
}

void V4L2Camera::close()
{
	camera_->release();
}

void V4L2Camera::getStreamConfig(StreamConfiguration *streamConfig)
{
	*streamConfig = config_->at(0);
}

std::vector<FrameMetadata> V4L2Camera::completedBuffers()
{
	std::vector<FrameMetadata> v;

	bufferLock_.lock();
	for (std::unique_ptr<FrameMetadata> &metadata : completedBuffers_)
		v.push_back(*metadata.get());
	completedBuffers_.clear();
	bufferLock_.unlock();

	return v;
}

void V4L2Camera::requestComplete(Request *request)
{
	if (request->status() == Request::RequestCancelled)
		return;

	/* We only have one stream at the moment. */
	bufferLock_.lock();
	Buffer *buffer = request->buffers().begin()->second;
	std::unique_ptr<FrameMetadata> metadata =
		utils::make_unique<FrameMetadata>(buffer);
	completedBuffers_.push_back(std::move(metadata));
	bufferLock_.unlock();

	bufferSema_.release();
}

void V4L2Camera::configure(int *ret, StreamConfiguration *streamConfigOut,
			   const Size &size, PixelFormat pixelformat,
			   unsigned int bufferCount)
{