virtualx-engine/modules/gdnative/include/videodecoder/godot_videodecoder.h

/**************************************************************************/
/*  godot_videodecoder.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. */
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/**************************************************************************/

#ifndef GODOT_VIDEODECODER_H
#define GODOT_VIDEODECODER_H

#include <gdnative/gdnative.h>

#ifdef __cplusplus
extern "C" {
#endif

#define GODOTAV_API_MAJOR 0
#define GODOTAV_API_MINOR 1

typedef struct
{
	godot_gdnative_api_version version;
	void *next;
	void *(*constructor)(godot_object *);
	void (*destructor)(void *);
	const char *(*get_plugin_name)();
	const char **(*get_supported_extensions)(int *count);
	godot_bool (*open_file)(void *, void *); // data struct, and a FileAccess pointer
	godot_real (*get_length)(const void *);
	godot_real (*get_playback_position)(const void *);
	void (*seek)(void *, godot_real);
	void (*set_audio_track)(void *, godot_int);
	void (*update)(void *, godot_real);
	godot_pool_byte_array *(*get_videoframe)(void *);
	godot_int (*get_audioframe)(void *, float *, int);
	godot_int (*get_channels)(const void *);
	godot_int (*get_mix_rate)(const void *);
	godot_vector2 (*get_texture_size)(const void *);
} godot_videodecoder_interface_gdnative;

typedef int (*GDNativeAudioMixCallback)(void *, const float *, int);

// FileAccess wrappers for custom FFmpeg IO
godot_int GDAPI godot_videodecoder_file_read(void *file_ptr, uint8_t *buf, int buf_size);
int64_t GDAPI godot_videodecoder_file_seek(void *file_ptr, int64_t pos, int whence);
void GDAPI godot_videodecoder_register_decoder(const godot_videodecoder_interface_gdnative *p_interface);

#ifdef __cplusplus
}
#endif

#endif // GODOT_VIDEODECODER_H