hybris/tests/test_audio.c

   1 /*
   2  * Copyright (c) 2013 Canonical Ltd
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 #include <memory.h>
  19 #include <assert.h>
  20 #include <stdbool.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23
  24 #include <android/hardware/audio.h>
  25 #include <android/hardware/hardware.h>
  26
  27 int main(int argc, char **argv)
  28 {
  29         struct hw_module_t *hwmod = 0;
  30         struct audio_hw_device *audiohw;
  31
  32         hw_get_module_by_class(AUDIO_HARDWARE_MODULE_ID,
  33                                         AUDIO_HARDWARE_MODULE_ID_PRIMARY,
  34                                         (const hw_module_t**) &hwmod);
  35         assert(hwmod != NULL);
  36
  37         assert(audio_hw_device_open(hwmod, &audiohw) == 0);
  38         assert(audiohw->init_check(audiohw) == 0);
  39         printf("Audio Hardware Interface initialized.\n");
  40
  41         if (audiohw->get_master_volume) {
  42                 float volume;
  43                 audiohw->get_master_volume(audiohw, &volume);
  44                 printf("Master Volume: %f\n", volume);
  45         }
  46
  47         if (audiohw->get_master_mute) {
  48                 bool mute;
  49                 audiohw->get_master_mute(audiohw, &mute);
  50                 printf("Master Mute: %d\n", mute);
  51         }
  52
  53         audio_hw_device_close(audiohw);
  54
  55         return 0;
  56 }
  57
  58 // vim:ts=4:sw=4:noexpandtab