media/libcubeb/src/audiotrack_definitions.h

   1 /*
   2  * Copyright (C) 2008 The Android Open Source Project
   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 #include <cubeb/cubeb-stdint.h>
  18
  19 /*
  20  * The following definitions are copied from the android sources. Only the
  21  * relevant enum member and values needed are copied.
  22  */
  23
  24 /*
  25  * From https://android.googlesource.com/platform/frameworks/base/+/android-2.2.3_r2.1/include/utils/Errors.h
  26  */
  27 typedef int32_t status_t;
  28
  29 /*
  30  * From https://android.googlesource.com/platform/frameworks/base/+/android-2.2.3_r2.1/include/media/AudioTrack.h
  31  */
  32 struct Buffer {
  33   uint32_t    flags;
  34   int         channelCount;
  35   int         format;
  36   size_t      frameCount;
  37   size_t      size;
  38   union {
  39     void*       raw;
  40     short*      i16;
  41     int8_t*     i8;
  42   };
  43 };
  44
  45 enum event_type {
  46   EVENT_MORE_DATA = 0,
  47   EVENT_UNDERRUN = 1,
  48   EVENT_LOOP_END = 2,
  49   EVENT_MARKER = 3,
  50   EVENT_NEW_POS = 4,
  51   EVENT_BUFFER_END = 5
  52 };
  53
  54 /**
  55  * From https://android.googlesource.com/platform/frameworks/base/+/android-2.2.3_r2.1/include/media/AudioSystem.h
  56  * and
  57  * https://android.googlesource.com/platform/system/core/+/android-4.2.2_r1/include/system/audio.h
  58  */
  59
  60 #define AUDIO_STREAM_TYPE_MUSIC 3
  61
  62 enum {
  63   AUDIO_CHANNEL_OUT_FRONT_LEFT_ICS  = 0x1,
  64   AUDIO_CHANNEL_OUT_FRONT_RIGHT_ICS = 0x2,
  65   AUDIO_CHANNEL_OUT_MONO_ICS     = AUDIO_CHANNEL_OUT_FRONT_LEFT_ICS,
  66   AUDIO_CHANNEL_OUT_STEREO_ICS   = (AUDIO_CHANNEL_OUT_FRONT_LEFT_ICS | AUDIO_CHANNEL_OUT_FRONT_RIGHT_ICS)
  67 } AudioTrack_ChannelMapping_ICS;
  68
  69 enum {
  70   AUDIO_CHANNEL_OUT_FRONT_LEFT_Froyo = 0x4,
  71   AUDIO_CHANNEL_OUT_FRONT_RIGHT_Froyo = 0x8,
  72   AUDIO_CHANNEL_OUT_MONO_Froyo = AUDIO_CHANNEL_OUT_FRONT_LEFT_Froyo,
  73   AUDIO_CHANNEL_OUT_STEREO_Froyo = (AUDIO_CHANNEL_OUT_FRONT_LEFT_Froyo | AUDIO_CHANNEL_OUT_FRONT_RIGHT_Froyo)
  74 } AudioTrack_ChannelMapping_Froyo;
  75
  76 typedef enum {
  77   AUDIO_FORMAT_PCM = 0x00000000,
  78   AUDIO_FORMAT_PCM_SUB_16_BIT = 0x1,
  79   AUDIO_FORMAT_PCM_16_BIT = (AUDIO_FORMAT_PCM | AUDIO_FORMAT_PCM_SUB_16_BIT),
  80 } AudioTrack_SampleType;
  81