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Diffstat (limited to 'modules/camera/camera_feed_linux.h')
| -rw-r--r-- | modules/camera/camera_feed_linux.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/modules/camera/camera_feed_linux.h b/modules/camera/camera_feed_linux.h new file mode 100644 index 0000000000..bf29201c99 --- /dev/null +++ b/modules/camera/camera_feed_linux.h @@ -0,0 +1,78 @@ +/**************************************************************************/ +/* 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 |