/*************************************************************************/ /* 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, bool p_use_sub_threads = false, float *r_progress = nullptr); 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