/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <stdint.h>

/*
 * The following definitions are copied from the android sources. Only the
 * relevant enum member and values needed are copied.
 */

/*
 * From https://android.googlesource.com/platform/frameworks/base/+/android-2.2.3_r2.1/include/utils/Errors.h
 */
typedef int32_t status_t;

/*
 * From https://android.googlesource.com/platform/frameworks/base/+/android-2.2.3_r2.1/include/media/AudioTrack.h
 */
struct Buffer {
  uint32_t    flags;
  int         channelCount;
  int         format;
  size_t      frameCount;
  size_t      size;
  union {
    void*       raw;
    short*      i16;
    int8_t*     i8;
  };
};

enum event_type {
  EVENT_MORE_DATA = 0,
  EVENT_UNDERRUN = 1,
  EVENT_LOOP_END = 2,
  EVENT_MARKER = 3,
  EVENT_NEW_POS = 4,
  EVENT_BUFFER_END = 5
};

/**
 * From https://android.googlesource.com/platform/frameworks/base/+/android-2.2.3_r2.1/include/media/AudioSystem.h
 * and 
 * https://android.googlesource.com/platform/system/core/+/android-4.2.2_r1/include/system/audio.h
 */

#define AUDIO_STREAM_TYPE_MUSIC 3

enum {
  AUDIO_CHANNEL_OUT_FRONT_LEFT_ICS  = 0x1,
  AUDIO_CHANNEL_OUT_FRONT_RIGHT_ICS = 0x2,
  AUDIO_CHANNEL_OUT_MONO_ICS     = AUDIO_CHANNEL_OUT_FRONT_LEFT_ICS,
  AUDIO_CHANNEL_OUT_STEREO_ICS   = (AUDIO_CHANNEL_OUT_FRONT_LEFT_ICS | AUDIO_CHANNEL_OUT_FRONT_RIGHT_ICS)
} AudioTrack_ChannelMapping_ICS;

enum {
  AUDIO_CHANNEL_OUT_FRONT_LEFT_Legacy = 0x4,
  AUDIO_CHANNEL_OUT_FRONT_RIGHT_Legacy = 0x8,
  AUDIO_CHANNEL_OUT_MONO_Legacy = AUDIO_CHANNEL_OUT_FRONT_LEFT_Legacy,
  AUDIO_CHANNEL_OUT_STEREO_Legacy = (AUDIO_CHANNEL_OUT_FRONT_LEFT_Legacy | AUDIO_CHANNEL_OUT_FRONT_RIGHT_Legacy)
} AudioTrack_ChannelMapping_Legacy;

typedef enum {
  AUDIO_FORMAT_PCM = 0x00000000,
  AUDIO_FORMAT_PCM_SUB_16_BIT = 0x1,
  AUDIO_FORMAT_PCM_16_BIT = (AUDIO_FORMAT_PCM | AUDIO_FORMAT_PCM_SUB_16_BIT),
} AudioTrack_SampleType;

