godot/scene/audio/audio_stream_player.cpp
2024-06-18 11:06:31 -04:00

292 lines
12 KiB
C++

/**************************************************************************/
/* audio_stream_player.cpp */
/**************************************************************************/
/* 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. */
/**************************************************************************/
#include "audio_stream_player.h"
#include "audio_stream_player.compat.inc"
#include "scene/audio/audio_stream_player_internal.h"
#include "servers/audio/audio_stream.h"
void AudioStreamPlayer::_notification(int p_what) {
internal->notification(p_what);
}
void AudioStreamPlayer::set_stream(Ref<AudioStream> p_stream) {
internal->set_stream(p_stream);
}
bool AudioStreamPlayer::_set(const StringName &p_name, const Variant &p_value) {
return internal->set(p_name, p_value);
}
bool AudioStreamPlayer::_get(const StringName &p_name, Variant &r_ret) const {
return internal->get(p_name, r_ret);
}
void AudioStreamPlayer::_get_property_list(List<PropertyInfo> *p_list) const {
internal->get_property_list(p_list);
}
Ref<AudioStream> AudioStreamPlayer::get_stream() const {
return internal->stream;
}
void AudioStreamPlayer::set_volume_db(float p_volume) {
ERR_FAIL_COND_MSG(Math::is_nan(p_volume), "Volume can't be set to NaN.");
internal->volume_db = p_volume;
Vector<AudioFrame> volume_vector = _get_volume_vector();
for (Ref<AudioStreamPlayback> &playback : internal->stream_playbacks) {
AudioServer::get_singleton()->set_playback_all_bus_volumes_linear(playback, volume_vector);
}
}
float AudioStreamPlayer::get_volume_db() const {
return internal->volume_db;
}
void AudioStreamPlayer::set_pitch_scale(float p_pitch_scale) {
internal->set_pitch_scale(p_pitch_scale);
}
float AudioStreamPlayer::get_pitch_scale() const {
return internal->pitch_scale;
}
void AudioStreamPlayer::set_max_polyphony(int p_max_polyphony) {
internal->set_max_polyphony(p_max_polyphony);
}
int AudioStreamPlayer::get_max_polyphony() const {
return internal->max_polyphony;
}
void AudioStreamPlayer::play(float p_from_pos) {
Ref<AudioStreamPlayback> stream_playback = internal->play_basic();
if (stream_playback.is_null()) {
return;
}
AudioServer::get_singleton()->start_playback_stream(stream_playback, internal->bus, _get_volume_vector(), p_from_pos, internal->pitch_scale);
internal->ensure_playback_limit();
// Sample handling.
if (stream_playback->get_is_sample() && stream_playback->get_sample_playback().is_valid()) {
Ref<AudioSamplePlayback> sample_playback = stream_playback->get_sample_playback();
sample_playback->offset = p_from_pos;
sample_playback->volume_vector = _get_volume_vector();
sample_playback->bus = get_bus();
AudioServer::get_singleton()->start_sample_playback(sample_playback);
}
}
void AudioStreamPlayer::seek(float p_seconds) {
internal->seek(p_seconds);
}
void AudioStreamPlayer::stop() {
internal->stop();
}
bool AudioStreamPlayer::is_playing() const {
return internal->is_playing();
}
float AudioStreamPlayer::get_playback_position() {
return internal->get_playback_position();
}
void AudioStreamPlayer::set_bus(const StringName &p_bus) {
internal->bus = p_bus;
for (const Ref<AudioStreamPlayback> &playback : internal->stream_playbacks) {
AudioServer::get_singleton()->set_playback_bus_exclusive(playback, p_bus, _get_volume_vector());
}
}
StringName AudioStreamPlayer::get_bus() const {
return internal->get_bus();
}
void AudioStreamPlayer::set_autoplay(bool p_enable) {
internal->autoplay = p_enable;
}
bool AudioStreamPlayer::is_autoplay_enabled() const {
return internal->autoplay;
}
void AudioStreamPlayer::set_mix_target(MixTarget p_target) {
mix_target = p_target;
}
AudioStreamPlayer::MixTarget AudioStreamPlayer::get_mix_target() const {
return mix_target;
}
void AudioStreamPlayer::_set_playing(bool p_enable) {
internal->set_playing(p_enable);
}
bool AudioStreamPlayer::_is_active() const {
return internal->is_active();
}
void AudioStreamPlayer::set_stream_paused(bool p_pause) {
internal->set_stream_paused(p_pause);
}
bool AudioStreamPlayer::get_stream_paused() const {
return internal->get_stream_paused();
}
Vector<AudioFrame> AudioStreamPlayer::_get_volume_vector() {
Vector<AudioFrame> volume_vector;
// We need at most four stereo pairs (for 7.1 systems).
volume_vector.resize(4);
// Initialize the volume vector to zero.
for (AudioFrame &channel_volume_db : volume_vector) {
channel_volume_db = AudioFrame(0, 0);
}
float volume_linear = Math::db_to_linear(internal->volume_db);
// Set the volume vector up according to the speaker mode and mix target.
// TODO do we need to scale the volume down when we output to more channels?
if (AudioServer::get_singleton()->get_speaker_mode() == AudioServer::SPEAKER_MODE_STEREO) {
volume_vector.write[0] = AudioFrame(volume_linear, volume_linear);
} else {
switch (mix_target) {
case MIX_TARGET_STEREO: {
volume_vector.write[0] = AudioFrame(volume_linear, volume_linear);
} break;
case MIX_TARGET_SURROUND: {
// TODO Make sure this is right.
volume_vector.write[0] = AudioFrame(volume_linear, volume_linear);
volume_vector.write[1] = AudioFrame(volume_linear, /* LFE= */ 1.0f);
volume_vector.write[2] = AudioFrame(volume_linear, volume_linear);
volume_vector.write[3] = AudioFrame(volume_linear, volume_linear);
} break;
case MIX_TARGET_CENTER: {
// TODO Make sure this is right.
volume_vector.write[1] = AudioFrame(volume_linear, /* LFE= */ 1.0f);
} break;
}
}
return volume_vector;
}
void AudioStreamPlayer::_validate_property(PropertyInfo &p_property) const {
internal->validate_property(p_property);
}
bool AudioStreamPlayer::has_stream_playback() {
return internal->has_stream_playback();
}
Ref<AudioStreamPlayback> AudioStreamPlayer::get_stream_playback() {
return internal->get_stream_playback();
}
AudioServer::PlaybackType AudioStreamPlayer::get_playback_type() const {
return internal->get_playback_type();
}
void AudioStreamPlayer::set_playback_type(AudioServer::PlaybackType p_playback_type) {
internal->set_playback_type(p_playback_type);
}
void AudioStreamPlayer::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_stream", "stream"), &AudioStreamPlayer::set_stream);
ClassDB::bind_method(D_METHOD("get_stream"), &AudioStreamPlayer::get_stream);
ClassDB::bind_method(D_METHOD("set_volume_db", "volume_db"), &AudioStreamPlayer::set_volume_db);
ClassDB::bind_method(D_METHOD("get_volume_db"), &AudioStreamPlayer::get_volume_db);
ClassDB::bind_method(D_METHOD("set_pitch_scale", "pitch_scale"), &AudioStreamPlayer::set_pitch_scale);
ClassDB::bind_method(D_METHOD("get_pitch_scale"), &AudioStreamPlayer::get_pitch_scale);
ClassDB::bind_method(D_METHOD("play", "from_position"), &AudioStreamPlayer::play, DEFVAL(0.0));
ClassDB::bind_method(D_METHOD("seek", "to_position"), &AudioStreamPlayer::seek);
ClassDB::bind_method(D_METHOD("stop"), &AudioStreamPlayer::stop);
ClassDB::bind_method(D_METHOD("is_playing"), &AudioStreamPlayer::is_playing);
ClassDB::bind_method(D_METHOD("get_playback_position"), &AudioStreamPlayer::get_playback_position);
ClassDB::bind_method(D_METHOD("set_bus", "bus"), &AudioStreamPlayer::set_bus);
ClassDB::bind_method(D_METHOD("get_bus"), &AudioStreamPlayer::get_bus);
ClassDB::bind_method(D_METHOD("set_autoplay", "enable"), &AudioStreamPlayer::set_autoplay);
ClassDB::bind_method(D_METHOD("is_autoplay_enabled"), &AudioStreamPlayer::is_autoplay_enabled);
ClassDB::bind_method(D_METHOD("set_mix_target", "mix_target"), &AudioStreamPlayer::set_mix_target);
ClassDB::bind_method(D_METHOD("get_mix_target"), &AudioStreamPlayer::get_mix_target);
ClassDB::bind_method(D_METHOD("_set_playing", "enable"), &AudioStreamPlayer::_set_playing);
ClassDB::bind_method(D_METHOD("_is_active"), &AudioStreamPlayer::_is_active);
ClassDB::bind_method(D_METHOD("set_stream_paused", "pause"), &AudioStreamPlayer::set_stream_paused);
ClassDB::bind_method(D_METHOD("get_stream_paused"), &AudioStreamPlayer::get_stream_paused);
ClassDB::bind_method(D_METHOD("set_max_polyphony", "max_polyphony"), &AudioStreamPlayer::set_max_polyphony);
ClassDB::bind_method(D_METHOD("get_max_polyphony"), &AudioStreamPlayer::get_max_polyphony);
ClassDB::bind_method(D_METHOD("has_stream_playback"), &AudioStreamPlayer::has_stream_playback);
ClassDB::bind_method(D_METHOD("get_stream_playback"), &AudioStreamPlayer::get_stream_playback);
ClassDB::bind_method(D_METHOD("set_playback_type", "playback_type"), &AudioStreamPlayer::set_playback_type);
ClassDB::bind_method(D_METHOD("get_playback_type"), &AudioStreamPlayer::get_playback_type);
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "stream", PROPERTY_HINT_RESOURCE_TYPE, "AudioStream"), "set_stream", "get_stream");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "volume_db", PROPERTY_HINT_RANGE, "-80,24,suffix:dB"), "set_volume_db", "get_volume_db");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "pitch_scale", PROPERTY_HINT_RANGE, "0.01,4,0.01,or_greater"), "set_pitch_scale", "get_pitch_scale");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "playing", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR), "_set_playing", "is_playing");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "autoplay"), "set_autoplay", "is_autoplay_enabled");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "stream_paused", PROPERTY_HINT_NONE, ""), "set_stream_paused", "get_stream_paused");
ADD_PROPERTY(PropertyInfo(Variant::INT, "mix_target", PROPERTY_HINT_ENUM, "Stereo,Surround,Center"), "set_mix_target", "get_mix_target");
ADD_PROPERTY(PropertyInfo(Variant::INT, "max_polyphony", PROPERTY_HINT_NONE, ""), "set_max_polyphony", "get_max_polyphony");
ADD_PROPERTY(PropertyInfo(Variant::STRING_NAME, "bus", PROPERTY_HINT_ENUM, ""), "set_bus", "get_bus");
ADD_PROPERTY(PropertyInfo(Variant::INT, "playback_type", PROPERTY_HINT_ENUM, "Default,Stream,Sample"), "set_playback_type", "get_playback_type");
ADD_SIGNAL(MethodInfo("finished"));
BIND_ENUM_CONSTANT(MIX_TARGET_STEREO);
BIND_ENUM_CONSTANT(MIX_TARGET_SURROUND);
BIND_ENUM_CONSTANT(MIX_TARGET_CENTER);
}
AudioStreamPlayer::AudioStreamPlayer() {
internal = memnew(AudioStreamPlayerInternal(this, callable_mp(this, &AudioStreamPlayer::play), false));
}
AudioStreamPlayer::~AudioStreamPlayer() {
memdelete(internal);
}