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SDL2::audio - SDL Audio Functions - metacpan.org
https://metacpan.org/pod/SDL2::audio
SDL_MixAudioFormat( $dst, $src, $format, $len, $volume ); where $format is the obtained format of the audio device from the legacy SDL_OpenAudio( ... ) function. Expected parameters include: dst - the destination for the mixed audio src - the source audio buffer to be mixed len - the length of the audio buffer in bytes
SDL_mixer 1.2.10: Mix_OpenAudio
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); }
SDL_MixAudio - SDL Wiki
https://wiki.libsdl.org/SDL_MixAudio
This function is equivalent to calling... SDL_MixAudioFormat (dst, src, format, len, volume); ...where format is the obtained format of the audio device from the legacy SDL_OpenAudio () function. Version This function is available since SDL 2.0.0. Code Examples
SDL_MixAudio - SDL Library Documentation
https://documentation.help/SDL/sdlmixaudio.html
Description. This function takes two audio buffers of len bytes each of the playing audio format and mixes them, performing addition, volume adjustment, and overflow clipping. The volume ranges from 0 to SDL_MIX_MAXVOLUME and should be set to the maximum value for full audio volume. Note this does not change hardware volume.
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 mixer - Simple DirectMedia Layer
https://www.libsdl.org/projects/SDL_mixer/docs/SDL_mixer.pdf
When using SDL mixer functions you need to avoid the following functions from SDL: SDL_OpenAudio Use Mix_OpenAudio instead. SDL_CloseAudio Use Mix_CloseAudio instead. SDL_PauseAudio Use Mix_Pause(-1) and Mix_PauseMusic instead, to pause. Use Mix_Resume(-1) and Mix_ResumeMusic instead, to unpause. SDL_LockAudio
"SDL failed to open audio: No available audio device ...
https://forum.kde.org/viewtopic.php?t=112947
Re: "SDL failed to open audio: No available audio device". Fri Apr 23, 2010 5:38 am. Kdenlive uses `aplay -l` or reads /proc/asound/pcm for lines with "playback" if no aplay available. It uses these to generate plughw:, ALSA PCMs. Then, it sends that to MLT, which sets the environment variable AUDIODEV for SDL.
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