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fix: added missing options to EmscriptenAudioWorkletNodeCreateOptions closes #23982 #25497

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fix: added missing options to EmscriptenAudioWorkletNodeCreateOptions closes #23982 #25497

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32ee9d9
fix: added missing options to EmscriptenAudioWorkletNodeCreateOptions
Oct 5, 2025
d9e8099
fix: updated channelCount, mode and interpretation with proper types …
Oct 6, 2025
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3 changes: 3 additions & 0 deletions src/lib/libwebaudio.js
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Original file line number Diff line number Diff line change
Expand Up @@ -318,6 +318,9 @@ var LibraryWebAudio = {
numberOfInputs: {{{ makeGetValue('options', C_STRUCTS.EmscriptenAudioWorkletNodeCreateOptions.numberOfInputs, 'i32') }}},
numberOfOutputs: optionsOutputs,
outputChannelCount: readChannelCountArray({{{ makeGetValue('options', C_STRUCTS.EmscriptenAudioWorkletNodeCreateOptions.outputChannelCounts, 'i32*') }}}, optionsOutputs),
channelCount: (function(){ var v = {{{ makeGetValue('options', C_STRUCTS.EmscriptenAudioWorkletNodeCreateOptions.channelCount, 'u32') }}}; return v > 0 ? v : undefined; })(),
channelCountMode: (function(){ var v = {{{ makeGetValue('options', C_STRUCTS.EmscriptenAudioWorkletNodeCreateOptions.channelCountMode, 'i32') }}}; var arr = ['max','clamped-max','explicit']; return arr[v] || undefined; })(),
channelInterpretation: (function(){ var v = {{{ makeGetValue('options', C_STRUCTS.EmscriptenAudioWorkletNodeCreateOptions.channelInterpretation, 'i32') }}}; var arr = ['speakers','discrete']; return arr[v] || undefined; })(),
processorOptions: {
callback,
userData,
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15 changes: 15 additions & 0 deletions system/include/emscripten/webaudio.h
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Expand Up @@ -126,6 +126,17 @@ typedef struct AudioParamFrame

typedef bool (*EmscriptenWorkletNodeProcessCallback)(int numInputs, const AudioSampleFrame *inputs, int numOutputs, AudioSampleFrame *outputs, int numParams, const AudioParamFrame *params, void *userData4);

typedef enum {
WEBAUDIO_CHANNEL_COUNT_MODE_MAX = 0,
WEBAUDIO_CHANNEL_COUNT_MODE_CLAMPED_MAX = 1,
WEBAUDIO_CHANNEL_COUNT_MODE_EXPLICIT = 2
} WEBAUDIO_CHANNEL_COUNT_MODE;

typedef enum {
WEBAUDIO_CHANNEL_INTERPRETATION_SPEAKERS = 0,
WEBAUDIO_CHANNEL_INTERPRETATION_DISCRETE = 1
} WEBAUDIO_CHANNEL_INTERPRETATION;

typedef struct EmscriptenAudioWorkletNodeCreateOptions
{
// How many audio nodes does this node take inputs from? Default=1
Expand All @@ -134,6 +145,10 @@ typedef struct EmscriptenAudioWorkletNodeCreateOptions
int numberOfOutputs;
// For each output, specifies the number of audio channels (1=mono/2=stereo/etc.) for that output. Default=an array of ones for each output channel.
int *outputChannelCounts;
unsigned long channelCount;
WEBAUDIO_CHANNEL_COUNT_MODE channelCountMode;
WEBAUDIO_CHANNEL_INTERPRETATION channelInterpretation;

} EmscriptenAudioWorkletNodeCreateOptions;

// Instantiates the given AudioWorkletProcessor as an AudioWorkletNode, which continuously calls the specified processCallback() function on the browser's audio thread to perform audio processing.
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