src/add-ons/media/media-add-ons/multi_audio/MultiAudioUtility.h

   1 /*
   2  * Copyright 2008, Axel Dörfler, axeld@pinc-software.de.
   3  * Copyright (c) 2002-2007, Jerome Duval (jerome.duval@free.fr)
   4  *
   5  * Distributed under the terms of the MIT License.
   6  */
   7 #ifndef MULTI_AUDIO_UTILITY_H
   8 #define MULTI_AUDIO_UTILITY_H
   9
  10
  11 #include "hmulti_audio.h"
  12
  13
  14 namespace MultiAudio {
  15
  16 // sample rate & format conversion
  17 float convert_to_sample_rate(uint32 rate);
  18 uint32 convert_from_sample_rate(float rate);
  19 uint32 convert_to_media_format(uint32 format);
  20 int16 convert_to_valid_bits(uint32 format);
  21 uint32 convert_from_media_format(uint32 format);
  22 uint32 select_sample_rate(uint32 rate);
  23 uint32 select_format(uint32 format);
  24
  25 // device driver interface
  26 status_t get_description(int device, multi_description* description);
  27
  28 status_t get_enabled_channels(int device, multi_channel_enable* enable);
  29 status_t set_enabled_channels(int device, multi_channel_enable* enable);
  30
  31 status_t get_global_format(int device, multi_format_info* info);
  32 status_t set_global_format(int device, multi_format_info* info);
  33 status_t get_buffers(int device, multi_buffer_list* list);
  34 status_t buffer_exchange(int device, multi_buffer_info* info);
  35
  36 status_t list_mix_controls(int device, multi_mix_control_info* info);
  37 status_t get_mix(int device, multi_mix_value_info* info);
  38 status_t set_mix(int device, multi_mix_value_info* info);
  39
  40 }       // namespace MultiAudio
  41
  42 #endif  // MULTI_AUDIO_UTILITY_H