[opensuse-factory] Make SDL default ALSA device "hw" instead of "default"?
The SDL API doesn't allows the developer to select the audio device. It just does: #define DEFAULT_DEVICE "default" ... static const char *get_audio_device(int channels) { const char *device; device = SDL_getenv("AUDIODEV"); /* Is there a standard variable name? */ if ( device == NULL ) { if (channels == 6) device = "surround51"; else if (channels == 4) device = "surround40"; else device = DEFAULT_DEVICE; } return device; } I don't understand the motives (someone here does?), but setting AUDIODEV to "hw" works better than "default" in some cases (sometimes default works better?). All the info about the problem I found is http://mednafen.sourceforge.net/documentation/#using-cli , that says: "This is necessary because ALSA's "default" audio device has very poor buffering control capabilities." I just found again the problem with GuitarFun ( http://www.elotrolado.net/hilo_-JUEGO--Guitarfun-PC-2-0--homebrew-_948414 ). But I remember having the same problem in the past with other software. So, should SDL be patched to '#define DEFAULT_DEVICE "hw"'? --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org
2008/2/17, Christian Morales Vega
The SDL API doesn't allows the developer to select the audio device. It just does: #define DEFAULT_DEVICE "default" ... static const char *get_audio_device(int channels) { const char *device;
device = SDL_getenv("AUDIODEV"); /* Is there a standard variable name? */ if ( device == NULL ) { if (channels == 6) device = "surround51"; else if (channels == 4) device = "surround40"; else device = DEFAULT_DEVICE; } return device; }
I don't understand the motives (someone here does?), but setting AUDIODEV to "hw" works better than "default" in some cases (sometimes default works better?). All the info about the problem I found is http://mednafen.sourceforge.net/documentation/#using-cli , that says: "This is necessary because ALSA's "default" audio device has very poor buffering control capabilities."
I just found again the problem with GuitarFun ( http://www.elotrolado.net/hilo_-JUEGO--Guitarfun-PC-2-0--homebrew-_948414 ). But I remember having the same problem in the past with other software.
So, should SDL be patched to '#define DEFAULT_DEVICE "hw"'?
Ok, no. "hw" isn't a good default since it disables software mixing and other apps loss sound. But we are patching SDL to try first ALSA (SDL-1.2.13-try_alsa_first.patch). And in my experience SDL apps work better with: "SDL_AUDIODRIVER=dsp aoss <app>" than with "SDL_AUDIODRIVER=alsa <app>". --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org
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Christian Morales Vega schreef:
| 2008/2/17, Christian Morales Vega
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