audiotrack_definitions.h (2489B)
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 <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 26 * https://android.googlesource.com/platform/frameworks/base/+/android-2.2.3_r2.1/include/utils/Errors.h 27 */ 28 typedef int32_t status_t; 29 30 /* 31 * From 32 * https://android.googlesource.com/platform/frameworks/base/+/android-2.2.3_r2.1/include/media/AudioTrack.h 33 */ 34 struct Buffer { 35 uint32_t flags; 36 int channelCount; 37 int format; 38 size_t frameCount; 39 size_t size; 40 union { 41 void * raw; 42 short * i16; 43 int8_t * i8; 44 }; 45 }; 46 47 enum event_type { 48 EVENT_MORE_DATA = 0, 49 EVENT_UNDERRUN = 1, 50 EVENT_LOOP_END = 2, 51 EVENT_MARKER = 3, 52 EVENT_NEW_POS = 4, 53 EVENT_BUFFER_END = 5 54 }; 55 56 /** 57 * From 58 * https://android.googlesource.com/platform/frameworks/base/+/android-2.2.3_r2.1/include/media/AudioSystem.h 59 * and 60 * https://android.googlesource.com/platform/system/core/+/android-4.2.2_r1/include/system/audio.h 61 */ 62 63 #define AUDIO_STREAM_TYPE_MUSIC 3 64 65 enum { 66 AUDIO_CHANNEL_OUT_FRONT_LEFT_ICS = 0x1, 67 AUDIO_CHANNEL_OUT_FRONT_RIGHT_ICS = 0x2, 68 AUDIO_CHANNEL_OUT_MONO_ICS = AUDIO_CHANNEL_OUT_FRONT_LEFT_ICS, 69 AUDIO_CHANNEL_OUT_STEREO_ICS = 70 (AUDIO_CHANNEL_OUT_FRONT_LEFT_ICS | AUDIO_CHANNEL_OUT_FRONT_RIGHT_ICS) 71 } AudioTrack_ChannelMapping_ICS; 72 73 enum { 74 AUDIO_CHANNEL_OUT_FRONT_LEFT_Legacy = 0x4, 75 AUDIO_CHANNEL_OUT_FRONT_RIGHT_Legacy = 0x8, 76 AUDIO_CHANNEL_OUT_MONO_Legacy = AUDIO_CHANNEL_OUT_FRONT_LEFT_Legacy, 77 AUDIO_CHANNEL_OUT_STEREO_Legacy = (AUDIO_CHANNEL_OUT_FRONT_LEFT_Legacy | 78 AUDIO_CHANNEL_OUT_FRONT_RIGHT_Legacy) 79 } AudioTrack_ChannelMapping_Legacy; 80 81 typedef enum { 82 AUDIO_FORMAT_PCM = 0x00000000, 83 AUDIO_FORMAT_PCM_SUB_16_BIT = 0x1, 84 AUDIO_FORMAT_PCM_16_BIT = (AUDIO_FORMAT_PCM | AUDIO_FORMAT_PCM_SUB_16_BIT), 85 } AudioTrack_SampleType;