Sdl Audio Callback Len | Audio-Digital.net

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

https://stackoverflow.com/questions/16838920/pointer-to-member-function-for-sdl-audio-callback#:~:text=The%20callback%20pointer%20in%20SDL%20is%3A%20void%20%28SDLCALL,Uint8%20%2Astream%2C%20int%20len%29%3B%20where%20SDLCALL%20is%20__cdecl.

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trying to assign callback variable with SDL for audio

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

The SDL callback signature is a stand-alone function of type void (*)(void* userdata, Uint8* stream, int len). Your callback signature is close but not quite a match: void (mainEngineCW4::*)(void* userdata, Uint8* stream, int len). The main difference is that it is a member function, which is part of its type.

SDL_AudioSpec - SDL Wiki

https://wiki.libsdl.org/SDL_AudioSpec

void SDL_AudioCallback (void* userdata, Uint8* stream, int len) where its parameters are: Once the callback returns, the buffer will no longer be valid. Stereo samples are stored in a LRLRLR ordering. The callback must completely initialize the buffer; as of SDL 2.0, this buffer is not initialized before the callback is called.

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, …

Play a sound with SDL2 (no SDL_Mixer) · GitHub

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

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) {if (audio_len == 0) return; len = ( len > audio_len ? audio_len : len );

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