Sdl_Openaudio

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SDL_OpenAudio - SDL Wiki

https://wiki.libsdl.org/SDL_OpenAudio

Returns 0 if successful, placing the actual hardware parameters in the structure pointed to by obtained. If obtained is NULL, the audio data passed to the callback function will be guaranteed to be in the requested format, and will be automatically converted to the actual hardware audio format if necessary. If obtained is NULL, des…

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

SDL_OpenAudio calculates the size and silence fields for both the desired and obtained specifications. The size field stores the total size of the audio buffer in bytes, while the silence stores the value used to represent silence in the audio buffer

sdl_openaudio(3) - Linux man page

https://linux.die.net/man/3/sdl_openaudio

SDL_OpenAudio - Opens the audio device with the desired parameters. Synopsis. #include "SDL.h" int SDL_OpenAudio(SDL_AudioSpec *desired, SDL_AudioSpec *obtained); Description. This function opens the audio device with the desired parameters, and returns 0 if successful, placing the actual hardware parameters in the structure pointed to by obtained.

man SDL_OpenAudio (3): Opens the audio device with the ...

https://manpages.org/sdl_openaudio/3

To open the audio device a desired SDL_AudioSpec must be created. SDL_AudioSpec *desired; . . desired=(SDL_AudioSpec *)malloc(sizeof(SDL_AudioSpec)); You must then fill this structure with your desired audio specifications. desired->freq desired->format desired->samples desired->callback. void callback(void *userdata, Uint8 *stream, int len);

SDL_mixer 1.2.10: Mix_OpenAudio - Simple DirectMedia …

https://www.libsdl.org/projects/SDL_mixer/docs/SDL_mixer_11.html

// start SDL with audio support if(SDL_Init(SDL_INIT_AUDIO)==-1) { printf("SDL_Init: %s\n", SDL_GetError()); exit(1); } // open 44.1KHz, signed 16bit, system byte order, // stereo audio, using 1024 byte chunks if(Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 1024)==-1) { printf("Mix_OpenAudio: %s\n", Mix_GetError()); exit(2); }

c++ - Can I use Mix_OpenAudio and SDL_OpenAudio in …

https://stackoverflow.com/questions/4597252/can-i-use-mix-openaudio-and-sdl-openaudio-in-the-same-game

SDL_OpenAudio() and SDL_CloseAudio() is a pair function, once you open audio some where, you must close it, or you'll get the error like. Audio device is already open. While using SDL_OpenAudio(), it's a singleton, by trace into SDL source code, you may find that there was a current_audio object and this is the global audio object. If you open multiple audio files …

SDL :: View topic - Calling SDL_OpenAudio twice

https://forums.libsdl.org/viewtopic.php?t=4134

Hi, I'm trying to play two audio files simultaneously by calling SDL_OpenAudio twice with different SDL_AudioSpec.callback and SDL_AudioSpec.userdata, but I still get the usual error: "SDL_OpenAudio: Audio device is already opened" What have I …

Tutorial: Using SDL2 and SDL_Mixer to Play Samples | Sound ...

https://soundprogramming.net/programming/tutorial-using-sdl2-and-sdl_mixer-to-play-samples/

Programming ⇝ Tutorial: Using SDL2 and SDL_Mixer to Play Samples. ... The first thing that does its call Mix_OpenAudio, which starts the audio system. The settings we use are 44.1 kHz, 16-bit, stereo with a 512 byte buffer. You can use other audio formats, but that is the most common.

SDL_OpenAudio - man pages section 3: Library Interfaces ...

https://docs.oracle.com/cd/E88353_01/html/E37842/sdl-openaudio-3.html

SYNOPSIS #include "SDL.h" int SDL_OpenAudio (SDL_AudioSpec *desired, SDL_AudioSpec *obtained); DESCRIPTION This function opens the audio device with the desired parameters, and returns 0 if successful, placing the actual hardware parameters in the structure pointed to by obtained. If obtained is NULL, the audio data passed to the callback function will be guaranteed …

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