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/*************************************************************************/
/* audio_stream_opus.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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 AUDIO_STREAM_OPUS_H
#define AUDIO_STREAM_OPUS_H
#include "core/io/resource_loader.h"
#include "core/os/file_access.h"
#include "scene/resources/audio_stream.h"
#include <opus/opusfile.h>
/**
@author George Marques <george@gmarqu.es>
*/
class AudioStreamPlaybackOpus : public AudioStreamPlayback {
GDCLASS(AudioStreamPlaybackOpus, AudioStreamPlayback);
enum {
MIN_MIX = 1024
};
FileAccess *f;
OpusFileCallbacks _op_callbacks;
float length;
static int _op_read_func(void *_stream, unsigned char *_ptr, int _nbytes);
static int _op_seek_func(void *_stream, opus_int64 _offset, int _whence);
static int _op_close_func(void *_stream);
static opus_int64 _op_tell_func(void *_stream);
static const float osrate;
String file;
int64_t frames_mixed;
bool stream_loaded;
volatile bool playing;
OggOpusFile *opus_file;
int stream_channels;
int current_section;
int pre_skip;
bool paused;
bool loops;
int repeats;
Error _load_stream();
void _clear_stream();
void _close_file();
bool stream_valid;
float loop_restart_time;
public:
Error set_file(const String &p_file);
virtual void play(float p_from = 0);
virtual void stop();
virtual bool is_playing() const { return playing; }
virtual void set_loop_restart_time(float p_time) { loop_restart_time = p_time; }
virtual void set_paused(bool p_paused) { paused = p_paused; }
virtual bool is_paused() const { return paused; }
virtual void set_loop(bool p_enable) { loops = p_enable; }
virtual bool has_loop() const { return loops; }
virtual float get_length() const;
virtual String get_stream_name() const { return ""; }
virtual int get_loop_count() const { return repeats; }
virtual float get_playback_position() const;
virtual void seek(float p_time);
virtual int get_channels() const { return stream_channels; }
virtual int get_mix_rate() const { return osrate; }
virtual int get_minimum_buffer_size() const;
virtual int mix(int16_t *p_buffer, int p_frames);
AudioStreamPlaybackOpus();
~AudioStreamPlaybackOpus();
};
class AudioStreamOpus : public AudioStream {
GDCLASS(AudioStreamOpus, AudioStream);
String file;
public:
Ref<AudioStreamPlayback> instance_playback() {
Ref<AudioStreamPlaybackOpus> pb = memnew(AudioStreamPlaybackOpus);
pb->set_file(file);
return pb;
}
void set_file(const String &p_file) { file = p_file; }
};
class ResourceFormatLoaderAudioStreamOpus : public ResourceFormatLoader {
public:
virtual RES load(const String &p_path, const String &p_original_path = "", Error *r_error = NULL);
virtual void get_recognized_extensions(List<String> *p_extensions) const;
virtual bool handles_type(const String &p_type) const;
virtual String get_resource_type(const String &p_path) const;
};
#endif // AUDIO_STREAM_OPUS_H
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