Sdl Audio Callback Example | Audio-Digital.net

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Audio Examples - Simple DirectMedia Layer

https://www.libsdl.org/release/SDL-1.2.15/docs/html/guideaudioexamples.html

Opening the audio device. SDL_AudioSpec wanted; extern void fill_audio (void *udata, Uint8 *stream, int len); /* Set the audio format */ wanted.freq = 22050; wanted.format = AUDIO_S16; wanted.channels = 2; /* 1 = mono, 2 = stereo */ wanted.samples = 1024; /* Good low-latency value for callback */ wanted.callback = fill_audio; wanted.userdata = NULL; /* Open the audio device, …

trying to assign callback variable with SDL for audio

https://stackoverflow.com/questions/61842282/trying-to-assign-callback-variable-with-sdl-for-audio

Process stream using AudioData struct or whatever } public: void playAudio() { auto audioSpec = SDL_AudioSpec{}; // ... set the freq and format and what not in the audio spec audioSpec.callback = &myStaticAudioCallback; audioSpec.userdata = this; const auto audioDevice = SDL_OpenAudioDevice( NULL, 0, &audioSpec, NULL, …

c++ - Pointer to member-function for SDL audio callback ...

https://stackoverflow.com/questions/16838920/pointer-to-member-function-for-sdl-audio-callback

I have declared a class for playing the sound. But now I have to store a pointer for the callback function in the SDL_AudioSpec::callback (in the example wanted_spec.callback). But my callback is a member of my class. The callback pointer in SDL is: void (SDLCALL *callback)(void *userdata, Uint8 *stream, int len); where SDLCALL is __cdecl.

Sdl AudioCallback - Tangent128/luasdl2 Wiki

https://github-wiki-see.page/m/Tangent128/luasdl2/wiki/Sdl-AudioCallback

That is, to facilitate the audio process, only a file as a callback is currently allowed. This file must return a function to be called everytime the SDL needs to play audio. Function SYNOPSIS stream = function callback(length) ARGUMENTS. length, the length of data to play; RETURNS. stream, return the data to be played or nil for silence; EXAMPLE

Play a sound with SDL2 (no SDL_Mixer) · GitHub

https://gist.github.com/armornick/3447121

while ( audio_len > 0) {SDL_Delay (100); } // shut everything down: SDL_CloseAudio (); SDL_FreeWAV (wav_buffer);} // audio callback function // here you have to copy the data of your audio buffer into the // requesting audio buffer (stream) // you should only copy as much as the requested length (len) void my_audio_callback (void *userdata, Uint8 *stream, int len)

Golang AudioCallback Examples, github.com/veandco/go-sdl2 ...

https://golang.hotexamples.com/examples/github.com.veandco.go-sdl2.sdl/-/AudioCallback/golang-audiocallback-function-examples.html

runtime.LockOSThread() defer runtime.UnlockOSThread() err := sdl.Init(sdl.INIT_EVERYTHING) if err != nil { panic(err) } defer sdl.Quit() // Install audio callback spec := &sdl.AudioSpec{ Freq: SampleRate, Format: sdl.AUDIO_F32SYS, Channels: 1, Samples: 4096, Callback: sdl.AudioCallback(C.getSoundSamplesAdaptor), } audioDevice, err := sdl.OpenAudioDevice("", …

Basic sound synth using SDL_audio, with some examples of ...

https://gist.github.com/amirrajan/fa6ce9fdc8918e06ca9759c3358e4cd2

We set our sample rate, format, and pass in a callback here. int id; if ((id = SDL_OpenAudioDevice(nullptr, 0, &spec, &aspec, SDL_AUDIO_ALLOW_ANY_CHANGE)) <= 0 ) { fprintf(stderr, "Couldn't open audio: %s\n", SDL_GetError()); exit(-1); } This opens an audio device and adds it's reference to id.

SDL_AudioSpec - SDL Wiki

https://wiki.libsdl.org/SDL_AudioSpec

a pointer that is passed to callback (otherwise ignored by SDL) Code Examples SDL_AudioSpec want, have; SDL_AudioDeviceID dev; SDL_memset(&want, 0 , sizeof (want)); /* or SDL_zero(want) */ want.freq = 48000 ; want.format = AUDIO_F32; want.channels = 2 ; want.samples = 4096 ; want.callback = MyAudioCallback; // you wrote this function elsewhere. dev = …

Lazy Foo' Productions - Audio Recording

https://www.lazyfoo.net/tutorials/SDL/34_audio_recording/index.php

//Index is valid if( index gRecordingDeviceCount ) { //Default audio spec SDL_AudioSpec desiredRecordingSpec; SDL_zero(desiredRecordingSpec); desiredRecordingSpec.freq = 44100; desiredRecordingSpec.format = AUDIO_F32; desiredRecordingSpec.channels = 2; desiredRecordingSpec.samples = 4096; …

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