| /* |
| * Copyright (C) 2021 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. |
| */ |
| |
| syntax = "proto2"; |
| |
| package android.media.audio; |
| |
| // The Java AudioDeviceInfo device type. |
| // |
| // From |
| // frameworks/base/media/java/android/media/AudioDeviceInfo.java |
| enum AudioDeviceInfoType { |
| /** |
| * A device type associated with an unknown or uninitialized device. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_UNKNOWN = 0; |
| /** |
| * A device type describing the attached earphone speaker. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_BUILTIN_EARPIECE = 1; |
| /** |
| * A device type describing the speaker system (i.e. a mono speaker |
| * or stereo speakers) built in a device. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_BUILTIN_SPEAKER = 2; |
| /** |
| * A device type describing a headset, which is the combination of |
| * a headphones and microphone. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_WIRED_HEADSET = 3; |
| /** |
| * A device type describing a pair of wired headphones. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_WIRED_HEADPHONES = 4; |
| /** |
| * A device type describing an analog line-level connection. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_LINE_ANALOG = 5; |
| /** |
| * A device type describing a digital line connection (e.g. SPDIF). |
| */ |
| AUDIO_DEVICE_INFO_TYPE_LINE_DIGITAL = 6; |
| /** |
| * A device type describing a Bluetooth device typically used |
| * for telephony. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_BLUETOOTH_SCO = 7; |
| /** |
| * A device type describing a Bluetooth device supporting the A2DP profile. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_BLUETOOTH_A2DP = 8; |
| /** |
| * A device type describing an HDMI connection . |
| */ |
| AUDIO_DEVICE_INFO_TYPE_HDMI = 9; |
| /** |
| * A device type describing the Audio Return Channel of an HDMI connection. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_HDMI_ARC = 10; |
| /** |
| * A device type describing a USB audio device. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_USB_DEVICE = 11; |
| /** |
| * A device type describing a USB audio device in accessory mode. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_USB_ACCESSORY = 12; |
| /** |
| * A device type describing the audio device associated with a dock. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_DOCK = 13; |
| /** |
| * A device type associated with the transmission of audio signals over FM. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_FM = 14; |
| /** |
| * A device type describing the microphone(s) built in a device. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_BUILTIN_MIC = 15; |
| /** |
| * A device type for accessing the audio content transmitted over FM. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_FM_TUNER = 16; |
| /** |
| * A device type for accessing the audio content transmitted |
| * over the TV tuner system. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_TV_TUNER = 17; |
| /** |
| * A device type describing the transmission of audio signals |
| * over the telephony network. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_TELEPHONY = 18; |
| /** |
| * A device type describing the auxiliary line-level connectors. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_AUX_LINE = 19; |
| /** |
| * A device type connected over IP. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_IP = 20; |
| /** |
| * A type-agnostic device used for communication with |
| * external audio systems |
| */ |
| AUDIO_DEVICE_INFO_TYPE_BUS = 21; |
| /** |
| * A device type describing a USB audio headset. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_USB_HEADSET = 22; |
| /** |
| * A device type describing a Hearing Aid. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_HEARING_AID = 23; |
| /** |
| * A device type describing the speaker system (i.e. a mono speaker |
| * or stereo speakers) built in a device, that is specifically tuned |
| * for outputting sounds like notifications and alarms |
| * (i.e. sounds the user couldn't necessarily anticipate). |
| * <p>Note that this physical audio device may be the same as |
| * {@link #TYPE_BUILTIN_SPEAKER} but is driven differently to safely |
| * accommodate the different use case.</p> |
| */ |
| AUDIO_DEVICE_INFO_TYPE_BUILTIN_SPEAKER_SAFE = 24; |
| /** |
| * A device type for rerouting audio within the Android framework between |
| * mixes and system applications. |
| * This type is for instance encountered when querying the output device |
| * of a track (with {@link AudioTrack#getRoutedDevice()} playing from |
| * a device in screen mirroring mode, where the audio is not heard on the |
| * device, but on the remote device. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_REMOTE_SUBMIX = 25; |
| |
| /** |
| * A device type describing a Bluetooth Low Energy (BLE) audio headset |
| * or headphones. Headphones are grouped with headsets when the device |
| * is a sink: the features of headsets and headphones with regard to |
| * playback are the same. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_BLE_HEADSET = 26; |
| |
| /** |
| * A device type describing a Bluetooth Low Energy (BLE) audio speaker. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_BLE_SPEAKER = 27; |
| |
| /** |
| * A device type describing an Echo Canceller loopback Reference. |
| * This device is only used when capturing with |
| * MediaRecorder.AudioSource.ECHO_REFERENCE, |
| * which requires privileged permission. |
| * @hide */ |
| |
| AUDIO_DEVICE_INFO_TYPE_ECHO_REFERENCE = 28; |
| |
| /** |
| * A device type describing the Enhanced Audio Return Channel |
| * of an HDMI connection. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_HDMI_EARC = 29; |
| |
| /** |
| * A device type describing a Bluetooth Low Energy (BLE) broadcast group. |
| */ |
| AUDIO_DEVICE_INFO_TYPE_BLE_BROADCAST = 30; |
| } |
| |
| // The event (method) associated with the AudioRecord (e.g. create, start, |
| // stop, etc.) |
| enum AudioRecordEvent { |
| AUDIO_RECORD_EVENT_UNKNOWN = 0; |
| AUDIO_RECORD_EVENT_CREATE = 1; |
| } |
| |
| // The event (method) associated with the AudioTrack (e.g. create, start, |
| // pause, etc.) |
| enum AudioTrackEvent { |
| AUDIO_TRACK_EVENT_UNKNOWN = 0; |
| AUDIO_TRACK_EVENT_CREATE = 1; |
| } |
| |
| // An enumeration from system/media/audio/include/system/audio-hal-enums.h |
| // audio_content_type_t, representing the content type of the AudioTrack. |
| enum ContentType { |
| // Note: The first value in an enum must map to zero. |
| // Mapping the first value to zero ensures the default behavior |
| // is consistent between proto2 and proto3. |
| CONTENT_TYPE_UNKNOWN = 0; |
| CONTENT_TYPE_INVALID = -1; |
| CONTENT_TYPE_SPEECH = 1; |
| CONTENT_TYPE_MUSIC = 2; |
| CONTENT_TYPE_MOVIE = 3; |
| CONTENT_TYPE_SONIFICATION = 4; |
| } |
| |
| // An enumeration from system/media/audio/include/system/audio-hal-enums.h |
| // audio_format_t, representing the encoding of the AudioTrack data. |
| enum Encoding { |
| // AUDIO_FORMAT_DEFAULT may alias as UNKNOWN if enum value not listed below. |
| AUDIO_FORMAT_DEFAULT = 0; |
| AUDIO_FORMAT_PCM_16_BIT = 0x1; |
| AUDIO_FORMAT_PCM_8_BIT = 0x2; |
| AUDIO_FORMAT_PCM_32_BIT = 0x3; |
| AUDIO_FORMAT_PCM_8_24_BIT = 0x4; |
| AUDIO_FORMAT_PCM_FLOAT = 0x5; |
| AUDIO_FORMAT_PCM_24_BIT_PACKED = 0x6; |
| AUDIO_FORMAT_MP3 = 0x1000000; |
| AUDIO_FORMAT_AMR_NB = 0x2000000; |
| AUDIO_FORMAT_AMR_WB = 0x3000000; |
| AUDIO_FORMAT_AAC = 0x4000000; |
| AUDIO_FORMAT_AAC_MAIN = 0x4000001; |
| AUDIO_FORMAT_AAC_LC = 0x4000002; |
| AUDIO_FORMAT_AAC_SSR = 0x4000004; |
| AUDIO_FORMAT_AAC_LTP = 0x4000008; |
| AUDIO_FORMAT_AAC_HE_V1 = 0x4000010; |
| AUDIO_FORMAT_AAC_SCALABLE = 0x4000020; |
| AUDIO_FORMAT_AAC_ERLC = 0x4000040; |
| AUDIO_FORMAT_AAC_LD = 0x4000080; |
| AUDIO_FORMAT_AAC_HE_V2 = 0x4000100; |
| AUDIO_FORMAT_AAC_ELD = 0x4000200; |
| AUDIO_FORMAT_AAC_XHE = 0x4000300; |
| AUDIO_FORMAT_HE_AAC_V1 = 0x5000000; |
| AUDIO_FORMAT_HE_AAC_V2 = 0x6000000; |
| AUDIO_FORMAT_VORBIS = 0x7000000; |
| AUDIO_FORMAT_OPUS = 0x8000000; |
| AUDIO_FORMAT_AC3 = 0x9000000; |
| AUDIO_FORMAT_E_AC3 = 0xa000000; |
| AUDIO_FORMAT_E_AC3_JOC = 0xa000001; |
| AUDIO_FORMAT_DTS = 0xb000000; |
| AUDIO_FORMAT_DTS_HD = 0xc000000; |
| AUDIO_FORMAT_IEC61937 = 0xd000000; |
| AUDIO_FORMAT_DOLBY_TRUEHD = 0xe000000; |
| AUDIO_FORMAT_EVRC = 0x10000000; |
| AUDIO_FORMAT_EVRCB = 0x11000000; |
| AUDIO_FORMAT_EVRCWB = 0x12000000; |
| AUDIO_FORMAT_EVRCNW = 0x13000000; |
| AUDIO_FORMAT_AAC_ADIF = 0x14000000; |
| AUDIO_FORMAT_WMA = 0x15000000; |
| AUDIO_FORMAT_WMA_PRO = 0x16000000; |
| AUDIO_FORMAT_AMR_WB_PLUS = 0x17000000; |
| AUDIO_FORMAT_MP2 = 0x18000000; |
| AUDIO_FORMAT_QCELP = 0x19000000; |
| AUDIO_FORMAT_DSD = 0x1a000000; |
| AUDIO_FORMAT_FLAC = 0x1b000000; |
| AUDIO_FORMAT_ALAC = 0x1c000000; |
| AUDIO_FORMAT_APE = 0x1d000000; |
| AUDIO_FORMAT_AAC_ADTS = 0x1e000000; |
| AUDIO_FORMAT_AAC_ADTS_MAIN = 0x1e000001; |
| AUDIO_FORMAT_AAC_ADTS_LC = 0x1e000002; |
| AUDIO_FORMAT_AAC_ADTS_SSR = 0x1e000004; |
| AUDIO_FORMAT_AAC_ADTS_LTP = 0x1e000008; |
| AUDIO_FORMAT_AAC_ADTS_HE_V1 = 0x1e000010; |
| AUDIO_FORMAT_AAC_ADTS_SCALABLE = 0x1e000020; |
| AUDIO_FORMAT_AAC_ADTS_ERLC = 0x1e000040; |
| AUDIO_FORMAT_AAC_ADTS_LD = 0x1e000080; |
| AUDIO_FORMAT_AAC_ADTS_HE_V2 = 0x1e000100; |
| AUDIO_FORMAT_AAC_ADTS_ELD = 0x1e000200; |
| AUDIO_FORMAT_AAC_ADTS_XHE = 0x1e000300; |
| AUDIO_FORMAT_SBC = 0x1f000000; |
| AUDIO_FORMAT_APTX = 0x20000000; |
| AUDIO_FORMAT_APTX_HD = 0x21000000; |
| AUDIO_FORMAT_AC4 = 0x22000000; |
| AUDIO_FORMAT_LDAC = 0x23000000; |
| AUDIO_FORMAT_MAT = 0x24000000; |
| AUDIO_FORMAT_MAT_1_0 = 0x24000001; |
| AUDIO_FORMAT_MAT_2_0 = 0x24000002; |
| AUDIO_FORMAT_MAT_2_1 = 0x24000003; |
| AUDIO_FORMAT_AAC_LATM = 0x25000000; |
| AUDIO_FORMAT_AAC_LATM_LC = 0x25000002; |
| AUDIO_FORMAT_AAC_LATM_HE_V1 = 0x25000010; |
| AUDIO_FORMAT_AAC_LATM_HE_V2 = 0x25000100; |
| AUDIO_FORMAT_CELT = 0x26000000; |
| AUDIO_FORMAT_APTX_ADAPTIVE = 0x27000000; |
| AUDIO_FORMAT_LHDC = 0x28000000; |
| AUDIO_FORMAT_LHDC_LL = 0x29000000; |
| AUDIO_FORMAT_APTX_TWSP = 0x2a000000; |
| AUDIO_FORMAT_LC3 = 0x2b000000; |
| AUDIO_FORMAT_MPEGH = 0x2c000000; |
| AUDIO_FORMAT_MPEGH_BL_L3 = 0x2c000013; |
| AUDIO_FORMAT_MPEGH_BL_L4 = 0x2c000014; |
| AUDIO_FORMAT_MPEGH_LC_L3 = 0x2c000023; |
| AUDIO_FORMAT_MPEGH_LC_L4 = 0x2c000024; |
| AUDIO_FORMAT_IEC60958 = 0x2d000000; |
| AUDIO_FORMAT_DTS_UHD = 0x2e000000; |
| AUDIO_FORMAT_DRA = 0x2f000000; |
| AUDIO_FORMAT_APTX_QLEA = 0x30000000; |
| AUDIO_FORMAT_APTX_R4 = 0x31000000; |
| } |
| |
| // Spatializer HeadTracking modes |
| // See: |
| // frameworks/base/media/java/android/media/Spatializer.java |
| // frameworks/av/media/libaudioclient/aidl/android/media/SpatializerHeadTrackingMode.aidl |
| enum HeadTrackingMode { |
| HEAD_TRACKING_MODE_OTHER = 0; |
| HEAD_TRACKING_MODE_DISABLED = -1; |
| HEAD_TRACKING_MODE_RELATIVE_WORLD = 1; |
| HEAD_TRACKING_MODE_RELATIVE_SCREEN = 2; |
| } |
| |
| // An enumeration from system/media/audio/include/system/audio-hal-enums.h |
| // audio_source_t, representing the input source for the AudioRecord. |
| // Keep in sync with audio-hal-enums.h. |
| enum Source { |
| // Note: The first value in an enum must map to zero. |
| // Mapping the first value to zero ensures the default behavior |
| // is consistent between proto2 and proto3. |
| AUDIO_SOURCE_DEFAULT = 0; // may alias as UNKNOWN |
| AUDIO_SOURCE_INVALID = -1; |
| AUDIO_SOURCE_MIC = 1; |
| AUDIO_SOURCE_VOICE_UPLINK = 2; |
| AUDIO_SOURCE_VOICE_DOWNLINK = 3; |
| AUDIO_SOURCE_VOICE_CALL = 4; |
| AUDIO_SOURCE_CAMCORDER = 5; |
| AUDIO_SOURCE_VOICE_RECOGNITION = 6; |
| AUDIO_SOURCE_VOICE_COMMUNICATION = 7; |
| AUDIO_SOURCE_REMOTE_SUBMIX = 8; |
| AUDIO_SOURCE_UNPROCESSED = 9; |
| AUDIO_SOURCE_VOICE_PERFORMANCE = 10; |
| AUDIO_SOURCE_ECHO_REFERENCE = 1997; |
| AUDIO_SOURCE_FM_TUNER = 1998; |
| AUDIO_SOURCE_HOTWORD = 1999; |
| } |
| |
| // Spatializer capability levels |
| // See: |
| // frameworks/base/media/java/android/media/Spatializer.java |
| // frameworks/av/media/libaudioclient/aidl/android/media/SpatializationLevel.aidl |
| enum SpatializerLevel { |
| SPATIALIZER_LEVEL_NONE = 0; |
| SPATIALIZER_LEVEL_MULTICHANNEL = 1; |
| SPATIALIZER_LEVEL_MCHAN_BED_PLUS_OBJECTS = 2; |
| } |
| |
| // Spatializer modes |
| // See: |
| // frameworks/av/media/libaudioclient/aidl/android/media/SpatializationMode.aidl |
| enum SpatializerMode { |
| SPATIALIZER_MODE_BINAURAL = 0; |
| SPATIALIZER_MODE_TRANSAURAL = 1; |
| } |
| |
| // Spatialization settings change may be due to special events. |
| enum SpatializerSettingEvent { |
| SPATIALIZER_SETTING_EVENT_NORMAL = 0; // Change during normal operation: |
| // e.g. System UI or sensor device change |
| // see the atom for more details. |
| SPATIALIZER_SETTING_EVENT_BOOT = 1; // On boot-up. |
| SPATIALIZER_SETTING_EVENT_FIRST = 2; // First time for a removable device. |
| } |
| |
| // An enumeration from system/media/audio/include/system/audio-hal-enums.h |
| // audio_usage_t, representing the use case for the AudioTrack. |
| enum Usage { |
| AUDIO_USAGE_UNKNOWN = 0; |
| AUDIO_USAGE_MEDIA = 1; |
| AUDIO_USAGE_VOICE_COMMUNICATION = 2; |
| AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING = 3; |
| AUDIO_USAGE_ALARM = 4; |
| AUDIO_USAGE_NOTIFICATION = 5; |
| AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE = 6; |
| AUDIO_USAGE_NOTIFICATION_EVENT = 10; |
| AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY = 11; |
| AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE = 12; |
| AUDIO_USAGE_ASSISTANCE_SONIFICATION = 13; |
| AUDIO_USAGE_GAME = 14; |
| AUDIO_USAGE_VIRTUAL_SOURCE = 15; |
| AUDIO_USAGE_ASSISTANT = 16; |
| AUDIO_USAGE_CALL_ASSISTANT = 17; |
| AUDIO_USAGE_EMERGENCY = 1000; |
| AUDIO_USAGE_SAFETY = 1001; |
| AUDIO_USAGE_VEHICLE_STATUS = 1002; |
| AUDIO_USAGE_ANNOUNCEMENT = 1003; |
| } |