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71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
/*
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* This is a simple C99 program that demonstrates the usage of fluid_audio_driver_register()
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*
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* There are 3 calls to fluid_audio_driver_register(), i.e. 3 iterations:
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* First the alsa driver is registered and created, followed by the jack and portaudio driver.
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*
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* The usual usecase would be to call fluid_audio_driver_register() only once providing the audio drivers needed during fluidsynth usage.
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* If necessary however fluid_audio_driver_register() can be called multiple times as demonstrated here.
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* Therefore the user must make sure to delete all fluid-instances of any kind before making the call to fluid_audio_driver_register().
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* Else the behaviour is undefined and the application is likely to crash.
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*/
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#include <stdio.h>
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#include <fluidsynth.h>
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int main()
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{
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const char *DRV[] = { "alsa", "jack", "portaudio" };
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const char *adrivers[2];
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for(int i = 0; i < sizeof(DRV) / sizeof(DRV[0]); i++)
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{
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adrivers[0] = DRV[i];
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/* register any other driver you need
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*
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* adrivers[X] = "whatever";
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*/
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adrivers[1] = NULL; /* NULL terminate the array */
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/* register those audio drivers. Note that at this time no fluidsynth objects are alive! */
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int res = fluid_audio_driver_register(adrivers);
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if(res != FLUID_OK)
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{
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puts("adriver reg err");
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return -1;
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}
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fluid_settings_t *settings = new_fluid_settings();
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res = fluid_settings_setstr(settings, "audio.driver", DRV[i]);
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/* settings API will be refactored to return FLUID_OK|FAILED next major release
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* returning TRUE or FALSE is deprecated
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*/
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#if FLUIDSYNTH_VERSION_MAJOR >= 2
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if(res != FLUID_OK)
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#else
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if(res == 0)
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#endif
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{
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puts("audio.driver set err");
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return -1;
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}
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fluid_synth_t *synth = new_fluid_synth(settings);
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fluid_audio_driver_t *ad = new_fluid_audio_driver(settings, synth);
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/*
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* ~~~ Do your daily business here ~~~
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*/
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delete_fluid_audio_driver(ad);
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delete_fluid_synth(synth);
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delete_fluid_settings(settings);
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/* everything cleaned up, fluid_audio_driver_register() can be called again if needed */
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}
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return 0;
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}
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