mirror of
https://github.com/godotengine/godot.git
synced 2025-10-30 21:21:10 +00:00
79 lines
3.4 KiB
C++
79 lines
3.4 KiB
C++
|
/**************************************************************************/
|
||
|
|
/* camera_feed_linux.h */
|
||
|
|
/**************************************************************************/
|
||
|
|
/* This file is part of: */
|
||
|
|
/* GODOT ENGINE */
|
||
|
|
/* https://godotengine.org */
|
||
|
|
/**************************************************************************/
|
||
|
|
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
|
||
|
|
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
|
||
|
|
/* */
|
||
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
||
|
|
/* a copy of this software and associated documentation files (the */
|
||
|
|
/* "Software"), to deal in the Software without restriction, including */
|
||
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
||
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
||
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
||
|
|
/* the following conditions: */
|
||
|
|
/* */
|
||
|
|
/* The above copyright notice and this permission notice shall be */
|
||
|
|
/* included in all copies or substantial portions of the Software. */
|
||
|
|
/* */
|
||
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
||
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
||
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
|
||
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
||
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
||
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
||
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
||
|
|
/**************************************************************************/
|
||
|
|
|
||
|
|
#ifndef CAMERA_FEED_LINUX_H
|
||
|
|
#define CAMERA_FEED_LINUX_H
|
||
|
|
|
||
|
|
#include "buffer_decoder.h"
|
||
|
|
|
||
|
|
#include "core/os/thread.h"
|
||
|
|
#include "servers/camera/camera_feed.h"
|
||
|
|
|
||
|
|
#include <linux/videodev2.h>
|
||
|
|
|
||
|
|
struct StreamingBuffer;
|
||
|
|
|
||
|
|
class CameraFeedLinux : public CameraFeed {
|
||
|
|
private:
|
||
|
|
SafeFlag exit_flag;
|
||
|
|
Thread *thread = nullptr;
|
||
|
|
String device_name;
|
||
|
|
int file_descriptor = -1;
|
||
|
|
StreamingBuffer *buffers = nullptr;
|
||
|
|
unsigned int buffer_count = 0;
|
||
|
|
BufferDecoder *buffer_decoder = nullptr;
|
||
|
|
|
||
|
|
static void update_buffer_thread_func(void *p_func);
|
||
|
|
|
||
|
|
void _update_buffer();
|
||
|
|
void _query_device(const String &p_device_name);
|
||
|
|
void _add_format(v4l2_fmtdesc description, v4l2_frmsize_discrete size, int frame_numerator, int frame_denominator);
|
||
|
|
bool _request_buffers();
|
||
|
|
bool _start_capturing();
|
||
|
|
void _read_frame();
|
||
|
|
void _stop_capturing();
|
||
|
|
void _unmap_buffers(unsigned int p_count);
|
||
|
|
BufferDecoder *_create_buffer_decoder();
|
||
|
|
void _start_thread();
|
||
|
|
|
||
|
|
public:
|
||
|
|
String get_device_name() const;
|
||
|
|
bool activate_feed();
|
||
|
|
void deactivate_feed();
|
||
|
|
bool set_format(int p_index, const Dictionary &p_parameters);
|
||
|
|
Array get_formats() const;
|
||
|
|
FeedFormat get_format() const;
|
||
|
|
|
||
|
|
CameraFeedLinux(const String &p_device_name);
|
||
|
|
virtual ~CameraFeedLinux();
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif // CAMERA_FEED_LINUX_H
|