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virtualx-engine/platform/javascript/audio_server_javascript.cpp

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Add missing license headers in our source files (#5255) Also removes a couple wrong Godot headers from third-party source files.
2016-06-18 14:46:12 +02:00
/*************************************************************************/
/* audio_server_javascript.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2016 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. */
/*************************************************************************/
HTML5 exporter Improvements -Better template handling -Voice support -Stream support
2015-09-10 05:10:54 +02:00
#include "audio_server_javascript.h"
#include "emscripten.h"
AudioMixer *AudioServerJavascript::get_mixer() {
return NULL;
}
void AudioServerJavascript::audio_mixer_chunk_callback(int p_frames){
}
RID AudioServerJavascript::sample_create(SampleFormat p_format, bool p_stereo, int p_length) {
Sample *sample = memnew( Sample );
sample->format=p_format;
sample->stereo=p_stereo;
sample->length=p_length;
sample->loop_begin=0;
sample->loop_end=p_length;
sample->loop_format=SAMPLE_LOOP_NONE;
sample->mix_rate=44100;
sample->index=-1;
return sample_owner.make_rid(sample);
}
void AudioServerJavascript::sample_set_description(RID p_sample, const String& p_description){
}
Remove bogus argument in sample_get_description Copy-paste mistake from the setter most likely.
2015-12-28 01:18:37 +01:00
String AudioServerJavascript::sample_get_description(RID p_sample) const{
HTML5 exporter Improvements -Better template handling -Voice support -Stream support
2015-09-10 05:10:54 +02:00
return String();
}
AudioServerJavascript::SampleFormat AudioServerJavascript::sample_get_format(RID p_sample) const{
return SAMPLE_FORMAT_PCM8;
}
bool AudioServerJavascript::sample_is_stereo(RID p_sample) const{
const Sample *sample = sample_owner.get(p_sample);
ERR_FAIL_COND_V(!sample,false);
return sample->stereo;
}
int AudioServerJavascript::sample_get_length(RID p_sample) const{
const Sample *sample = sample_owner.get(p_sample);
ERR_FAIL_COND_V(!sample,0);
return sample->length;
}
const void* AudioServerJavascript::sample_get_data_ptr(RID p_sample) const{
return NULL;
}
void AudioServerJavascript::sample_set_data(RID p_sample, const DVector<uint8_t>& p_buffer){
Sample *sample = sample_owner.get(p_sample);
ERR_FAIL_COND(!sample);
int chans = sample->stereo?2:1;
Vector<float> buffer;
buffer.resize(sample->length*chans);
DVector<uint8_t>::Read r=p_buffer.read();
if (sample->format==SAMPLE_FORMAT_PCM8) {
const int8_t*ptr = (const int8_t*)r.ptr();
for(int i=0;i<sample->length*chans;i++) {
buffer[i]=ptr[i]/128.0;
}
} else if (sample->format==SAMPLE_FORMAT_PCM16){
const int16_t*ptr = (const int16_t*)r.ptr();
for(int i=0;i<sample->length*chans;i++) {
buffer[i]=ptr[i]/32768.0;
}
} else {
ERR_EXPLAIN("Unsupported for now");
ERR_FAIL();
}
sample->tmp_data=buffer;
}
const DVector<uint8_t> AudioServerJavascript::sample_get_data(RID p_sample) const{
return DVector<uint8_t>();
}
void AudioServerJavascript::sample_set_mix_rate(RID p_sample,int p_rate){
Sample *sample = sample_owner.get(p_sample);
ERR_FAIL_COND(!sample);
sample->mix_rate=p_rate;
}
int AudioServerJavascript::sample_get_mix_rate(RID p_sample) const{
const Sample *sample = sample_owner.get(p_sample);
ERR_FAIL_COND_V(!sample,0);
return sample->mix_rate;
}
void AudioServerJavascript::sample_set_loop_format(RID p_sample,SampleLoopFormat p_format){
Sample *sample = sample_owner.get(p_sample);
ERR_FAIL_COND(!sample);
sample->loop_format=p_format;
}
AudioServerJavascript::SampleLoopFormat AudioServerJavascript::sample_get_loop_format(RID p_sample) const {
const Sample *sample = sample_owner.get(p_sample);
ERR_FAIL_COND_V(!sample,SAMPLE_LOOP_NONE);
return sample->loop_format;
}
void AudioServerJavascript::sample_set_loop_begin(RID p_sample,int p_pos){
Sample *sample = sample_owner.get(p_sample);
ERR_FAIL_COND(!sample);
sample->loop_begin=p_pos;
}
int AudioServerJavascript::sample_get_loop_begin(RID p_sample) const{
const Sample *sample = sample_owner.get(p_sample);
ERR_FAIL_COND_V(!sample,0);
return sample->loop_begin;
}
void AudioServerJavascript::sample_set_loop_end(RID p_sample,int p_pos){
Sample *sample = sample_owner.get(p_sample);
ERR_FAIL_COND(!sample);
sample->loop_end=p_pos;
}
int AudioServerJavascript::sample_get_loop_end(RID p_sample) const{
const Sample *sample = sample_owner.get(p_sample);
ERR_FAIL_COND_V(!sample,0);
return sample->loop_end;
}
/* VOICE API */
RID AudioServerJavascript::voice_create(){
Voice *voice = memnew( Voice );
voice->index=voice_base;
voice->volume=1.0;
voice->pan=0.0;
voice->pan_depth=.0;
voice->pan_height=0.0;
voice->chorus=0;
voice->reverb_type=REVERB_SMALL;
voice->reverb=0;
voice->mix_rate=-1;
voice->positional=false;
voice->active=false;
EM_ASM_( {
_as_voices[$0]=null;
_as_voice_gain[$0]=_as_audioctx.createGain();
_as_voice_pan[$0]=_as_audioctx.createStereoPanner();
_as_voice_gain[$0].connect(_as_voice_pan[$0]);
_as_voice_pan[$0].connect(_as_audioctx.destination);
},voice_base);
voice_base++;
return voice_owner.make_rid( voice );
}
void AudioServerJavascript::voice_play(RID p_voice, RID p_sample){
Voice* voice=voice_owner.get(p_voice);
ERR_FAIL_COND(!voice);
Sample *sample=sample_owner.get(p_sample);
ERR_FAIL_COND(!sample);
// due to how webaudio works, sample cration is deferred until used
// sorry! WebAudio absolutely sucks
if (sample->index==-1) {
//create sample if not created
ERR_FAIL_COND(sample->tmp_data.size()==0);
sample->index=sample_base;
EM_ASM_( {
_as_samples[$0]=_as_audioctx.createBuffer($1,$2,$3);
},sample_base,sample->stereo?2:1,sample->length,sample->mix_rate);
sample_base++;
int chans = sample->stereo?2:1;
for(int i=0;i<chans;i++) {
EM_ASM_({
_as_edited_buffer=_as_samples[$0].getChannelData($1);
},sample->index,i);
for(int j=0;j<sample->length;j++) {
EM_ASM_({
_as_edited_buffer[$0]=$1;
},j,sample->tmp_data[j*chans+i]);
}
}
sample->tmp_data.clear();
}
voice->sample_mix_rate=sample->mix_rate;
if (voice->mix_rate==-1) {
voice->mix_rate=voice->sample_mix_rate;
}
float freq_diff = Math::log(float(voice->mix_rate)/float(voice->sample_mix_rate))/Math::log(2.0);
int detune = int(freq_diff*1200.0);
EM_ASM_( {
if (_as_voices[$0]!==null) {
_as_voices[$0].stop(); //stop and byebye
}
_as_voices[$0]=_as_audioctx.createBufferSource();
_as_voices[$0].connect(_as_voice_gain[$0]);
_as_voices[$0].buffer=_as_samples[$1];
_as_voices[$0].loopStart.value=$1;
_as_voices[$0].loopEnd.value=$2;
_as_voices[$0].loop.value=$3;
_as_voices[$0].detune.value=$6;
_as_voice_pan[$0].pan.value=$4;
_as_voice_gain[$0].gain.value=$5;
_as_voices[$0].start();
_as_voices[$0].onended=function() {
_as_voices[$0].disconnect(_as_voice_gain[$0]);
_as_voices[$0]=null;
}
},voice->index,sample->index,sample->mix_rate*sample->loop_begin,sample->mix_rate*sample->loop_end,sample->loop_format!=SAMPLE_LOOP_NONE,voice->pan,voice->volume*fx_volume_scale,detune);
voice->active=true;
}
Rename voice_set_volume argument to p_volume to avoid confusion This argument is indeed expected to be a volume on a linear scale (not dB), typically from 0.0 to 1.0, though it can go higher than 1.0.
2015-09-26 22:42:43 +02:00
void AudioServerJavascript::voice_set_volume(RID p_voice, float p_volume){
HTML5 exporter Improvements -Better template handling -Voice support -Stream support
2015-09-10 05:10:54 +02:00
Voice* voice=voice_owner.get(p_voice);
ERR_FAIL_COND(!voice);
Rename voice_set_volume argument to p_volume to avoid confusion This argument is indeed expected to be a volume on a linear scale (not dB), typically from 0.0 to 1.0, though it can go higher than 1.0.
2015-09-26 22:42:43 +02:00
voice->volume=p_volume;
HTML5 exporter Improvements -Better template handling -Voice support -Stream support
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if (voice->active) {
EM_ASM_( {
_as_voice_gain[$0].gain.value=$1;
},voice->index,voice->volume*fx_volume_scale);
}
}
void AudioServerJavascript::voice_set_pan(RID p_voice, float p_pan, float p_depth,float height){
Voice* voice=voice_owner.get(p_voice);
ERR_FAIL_COND(!voice);
voice->pan=p_pan;
voice->pan_depth=p_depth;
voice->pan_height=height;
if (voice->active) {
EM_ASM_( {
_as_voice_pan[$0].pan.value=$1;
},voice->index,voice->pan);
}
}
void AudioServerJavascript::voice_set_filter(RID p_voice, FilterType p_type, float p_cutoff, float p_resonance, float p_gain){
}
void AudioServerJavascript::voice_set_chorus(RID p_voice, float p_chorus ){
}
void AudioServerJavascript::voice_set_reverb(RID p_voice, ReverbRoomType p_room_type, float p_reverb){
}
void AudioServerJavascript::voice_set_mix_rate(RID p_voice, int p_mix_rate){
Voice* voice=voice_owner.get(p_voice);
ERR_FAIL_COND(!voice);
voice->mix_rate=p_mix_rate;
if (voice->active) {
float freq_diff = Math::log(float(voice->mix_rate)/float(voice->sample_mix_rate))/Math::log(2.0);
int detune = int(freq_diff*1200.0);
EM_ASM_( {
_as_voices[$0].detune.value=$1;
},voice->index,detune);
}
}
void AudioServerJavascript::voice_set_positional(RID p_voice, bool p_positional){
}
float AudioServerJavascript::voice_get_volume(RID p_voice) const{
Voice* voice=voice_owner.get(p_voice);
ERR_FAIL_COND_V(!voice,0);
return voice->volume;
}
float AudioServerJavascript::voice_get_pan(RID p_voice) const{
Voice* voice=voice_owner.get(p_voice);
ERR_FAIL_COND_V(!voice,0);
return voice->pan;
}
float AudioServerJavascript::voice_get_pan_depth(RID p_voice) const{
Voice* voice=voice_owner.get(p_voice);
ERR_FAIL_COND_V(!voice,0);
return voice->pan_depth;
}
float AudioServerJavascript::voice_get_pan_height(RID p_voice) const{
Voice* voice=voice_owner.get(p_voice);
ERR_FAIL_COND_V(!voice,0);
return voice->pan_height;
}
AudioServerJavascript::FilterType AudioServerJavascript::voice_get_filter_type(RID p_voice) const{
return FILTER_NONE;
}
float AudioServerJavascript::voice_get_filter_cutoff(RID p_voice) const{
return 0;
}
float AudioServerJavascript::voice_get_filter_resonance(RID p_voice) const{
return 0;
}
float AudioServerJavascript::voice_get_chorus(RID p_voice) const{
return 0;
}
AudioServerJavascript::ReverbRoomType AudioServerJavascript::voice_get_reverb_type(RID p_voice) const{
return REVERB_SMALL;
}
float AudioServerJavascript::voice_get_reverb(RID p_voice) const{
return 0;
}
int AudioServerJavascript::voice_get_mix_rate(RID p_voice) const{
return 44100;
}
bool AudioServerJavascript::voice_is_positional(RID p_voice) const{
return false;
}
void AudioServerJavascript::voice_stop(RID p_voice){
Voice* voice=voice_owner.get(p_voice);
ERR_FAIL_COND(!voice);
if (voice->active) {
EM_ASM_( {
if (_as_voices[$0]!==null) {
_as_voices[$0].stop();
_as_voices[$0].disconnect(_as_voice_gain[$0]);
_as_voices[$0]=null;
}
},voice->index);
voice->active=false;
}
}
bool AudioServerJavascript::voice_is_active(RID p_voice) const{
Voice* voice=voice_owner.get(p_voice);
ERR_FAIL_COND_V(!voice,false);
return voice->active;
}
/* STREAM API */
RID AudioServerJavascript::audio_stream_create(AudioStream *p_stream) {
Stream *s = memnew(Stream);
s->audio_stream=p_stream;
s->event_stream=NULL;
s->active=false;
s->E=NULL;
s->volume_scale=1.0;
p_stream->set_mix_rate(webaudio_mix_rate);
return stream_owner.make_rid(s);
}
RID AudioServerJavascript::event_stream_create(EventStream *p_stream) {
Stream *s = memnew(Stream);
s->audio_stream=NULL;
s->event_stream=p_stream;
s->active=false;
s->E=NULL;
s->volume_scale=1.0;
//p_stream->set_mix_rate(AudioDriverJavascript::get_singleton()->get_mix_rate());
return stream_owner.make_rid(s);
}
void AudioServerJavascript::stream_set_active(RID p_stream, bool p_active) {
Stream *s = stream_owner.get(p_stream);
ERR_FAIL_COND(!s);
if (s->active==p_active)
return;
s->active=p_active;
if (p_active)
s->E=active_audio_streams.push_back(s);
else {
active_audio_streams.erase(s->E);
s->E=NULL;
}
}
bool AudioServerJavascript::stream_is_active(RID p_stream) const {
Stream *s = stream_owner.get(p_stream);
ERR_FAIL_COND_V(!s,false);
return s->active;
}
void AudioServerJavascript::stream_set_volume_scale(RID p_stream, float p_scale) {
Stream *s = stream_owner.get(p_stream);
ERR_FAIL_COND(!s);
s->volume_scale=p_scale;
}
float AudioServerJavascript::stream_set_volume_scale(RID p_stream) const {
Stream *s = stream_owner.get(p_stream);
ERR_FAIL_COND_V(!s,0);
return s->volume_scale;
}
/* Audio Physics API */
void AudioServerJavascript::free(RID p_id){
if (voice_owner.owns(p_id)) {
Voice* voice=voice_owner.get(p_id);
ERR_FAIL_COND(!voice);
if (voice->active) {
EM_ASM_( {
if (_as_voices[$0]!==null) {
_as_voices[$0].stop();
_as_voices[$0].disconnect(_as_voice_gain[$0]);
}
},voice->index);
}
EM_ASM_( {
delete _as_voices[$0];
_as_voice_gain[$0].disconnect(_as_voice_pan[$0]);
delete _as_voice_gain[$0];
_as_voice_pan[$0].disconnect(_as_audioctx.destination);
delete _as_voice_pan[$0];
},voice->index);
voice_owner.free(p_id);
memdelete(voice);
} else if (sample_owner.owns(p_id)) {
Sample *sample = sample_owner.get(p_id);
ERR_FAIL_COND(!sample);
EM_ASM_( {
delete _as_samples[$0];
},sample->index);
sample_owner.free(p_id);
memdelete(sample);
} else if (stream_owner.owns(p_id)) {
Stream *s=stream_owner.get(p_id);
if (s->active) {
stream_set_active(p_id,false);
}
memdelete(s);
stream_owner.free(p_id);
}
}
extern "C" {
void audio_server_mix_function(int p_frames) {
//print_line("MIXI! "+itos(p_frames));
static_cast<AudioServerJavascript*>(AudioServerJavascript::get_singleton())->mix_to_js(p_frames);
}
}
void AudioServerJavascript::mix_to_js(int p_frames) {
//process in chunks to make sure to never process more than INTERNAL_BUFFER_SIZE
int todo=p_frames;
int offset=0;
while(todo) {
int tomix=MIN(todo,INTERNAL_BUFFER_SIZE);
driver_process_chunk(tomix);
EM_ASM_({
var data = HEAPF32.subarray($0/4, $0/4 + $2*2);
for (var channel = 0; channel < _as_output_buffer.numberOfChannels; channel++) {
var outputData = _as_output_buffer.getChannelData(channel);
// Loop through samples
for (var sample = 0; sample < $2; sample++) {
// make output equal to the same as the input
outputData[sample+$1] = data[sample*2+channel];
}
}
},internal_buffer,offset,tomix);
todo-=tomix;
offset+=tomix;
}
}
void AudioServerJavascript::init(){
//EM_ASM(
// console.log('server is '+audio_server);
// );
//int latency = GLOBAL_DEF("javascript/audio_latency",16384);
internal_buffer_channels=2;
internal_buffer = memnew_arr(float,INTERNAL_BUFFER_SIZE*internal_buffer_channels);
stream_buffer = memnew_arr(int32_t,INTERNAL_BUFFER_SIZE*4); //max 4 channels
stream_volume=0.3;
int buffer_latency=16384;
EM_ASM_( {
_as_script_node = _as_audioctx.createScriptProcessor($0, 0, 2);
_as_script_node.connect(_as_audioctx.destination);
console.log(_as_script_node.bufferSize);
_as_script_node.onaudioprocess = function(audioProcessingEvent) {
// The output buffer contains the samples that will be modified and played
_as_output_buffer = audioProcessingEvent.outputBuffer;
audio_server_mix_function(_as_output_buffer.getChannelData(0).length);
}
},buffer_latency);
}
void AudioServerJavascript::finish(){
}
void AudioServerJavascript::update(){
remotion of some c++ includes to avoid dependency on libstdc++
2015-09-11 01:30:46 +02:00
for(List<Stream*>::Element *E=active_audio_streams.front();E;) { //stream might be removed durnig this callback
HTML5 exporter Improvements -Better template handling -Voice support -Stream support
2015-09-10 05:10:54 +02:00
remotion of some c++ includes to avoid dependency on libstdc++
2015-09-11 01:30:46 +02:00
List<Stream*>::Element *N=E->next();
if (E->get()->audio_stream)
HTML5 exporter Improvements -Better template handling -Voice support -Stream support
2015-09-10 05:10:54 +02:00
E->get()->audio_stream->update();
remotion of some c++ includes to avoid dependency on libstdc++
2015-09-11 01:30:46 +02:00
E=N;
HTML5 exporter Improvements -Better template handling -Voice support -Stream support
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}
}
/* MISC config */
void AudioServerJavascript::lock(){
}
void AudioServerJavascript::unlock(){
}
int AudioServerJavascript::get_default_channel_count() const{
return 1;
}
int AudioServerJavascript::get_default_mix_rate() const{
return 44100;
}
void AudioServerJavascript::set_stream_global_volume_scale(float p_volume){
remotion of some c++ includes to avoid dependency on libstdc++
2015-09-11 01:30:46 +02:00
stream_volume_scale=p_volume;
HTML5 exporter Improvements -Better template handling -Voice support -Stream support
2015-09-10 05:10:54 +02:00
}
void AudioServerJavascript::set_fx_global_volume_scale(float p_volume){
fx_volume_scale=p_volume;
}
void AudioServerJavascript::set_event_voice_global_volume_scale(float p_volume){
}
float AudioServerJavascript::get_stream_global_volume_scale() const{
return 1;
}
float AudioServerJavascript::get_fx_global_volume_scale() const{
return 1;
}
float AudioServerJavascript::get_event_voice_global_volume_scale() const{
return 1;
}
uint32_t AudioServerJavascript::read_output_peak() const{
return 0;
}
AudioServerJavascript *AudioServerJavascript::singleton=NULL;
AudioServer *AudioServerJavascript::get_singleton() {
return singleton;
}
double AudioServerJavascript::get_mix_time() const{
return 0;
}
double AudioServerJavascript::get_output_delay() const {
return 0;
}
void AudioServerJavascript::driver_process_chunk(int p_frames) {
int samples=p_frames*internal_buffer_channels;
for(int i=0;i<samples;i++) {
internal_buffer[i]=0;
}
for(List<Stream*>::Element *E=active_audio_streams.front();E;E=E->next()) {
ERR_CONTINUE(!E->get()->active); // bug?
AudioStream *as=E->get()->audio_stream;
if (!as)
continue;
int channels=as->get_channel_count();
if (channels==0)
continue; // does not want mix
if (!as->mix(stream_buffer,p_frames))
continue; //nothing was mixed!!
int32_t stream_vol_scale=(stream_volume*stream_volume_scale*E->get()->volume_scale)*(1<<STREAM_SCALE_BITS);
#define STRSCALE(m_val) ((((m_val>>STREAM_SCALE_BITS)*stream_vol_scale)>>8)/8388608.0)
switch(channels) {
case 1: {
for(int i=0;i<p_frames;i++) {
internal_buffer[(i<<1)+0]+=STRSCALE(stream_buffer[i]);
internal_buffer[(i<<1)+1]+=STRSCALE(stream_buffer[i]);
}
} break;
case 2: {
for(int i=0;i<p_frames*2;i++) {
internal_buffer[i]+=STRSCALE(stream_buffer[i]);
}
} break;
case 4: {
for(int i=0;i<p_frames;i++) {
internal_buffer[(i<<2)+0]+=STRSCALE((stream_buffer[(i<<2)+0]+stream_buffer[(i<<2)+2])>>1);
internal_buffer[(i<<2)+1]+=STRSCALE((stream_buffer[(i<<2)+1]+stream_buffer[(i<<2)+3])>>1);
}
} break;
}
#undef STRSCALE
}
}
/*void AudioServerSW::driver_process(int p_frames,int32_t *p_buffer) {
_output_delay=p_frames/double(AudioDriverSW::get_singleton()->get_mix_rate());
//process in chunks to make sure to never process more than INTERNAL_BUFFER_SIZE
int todo=p_frames;
while(todo) {
int tomix=MIN(todo,INTERNAL_BUFFER_SIZE);
driver_process_chunk(tomix,p_buffer);
p_buffer+=tomix;
todo-=tomix;
}
}*/
AudioServerJavascript::AudioServerJavascript() {
singleton=this;
sample_base=1;
voice_base=1;
EM_ASM(
_as_samples={};
_as_voices={};
_as_voice_pan={};
_as_voice_gain={};
_as_audioctx = new (window.AudioContext || window.webkitAudioContext)();
audio_server_mix_function = Module.cwrap('audio_server_mix_function', 'void', ['number']);
);
webaudio_mix_rate = EM_ASM_INT_V(
return _as_audioctx.sampleRate;
);
print_line("WEBAUDIO MIX RATE: "+itos(webaudio_mix_rate));
event_voice_scale=1.0;
fx_volume_scale=1.0;
stream_volume_scale=1.0;
}
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