1# Global configuration section: 2# - lists input and output devices always present on the device 3# as well as the output device selected by default. 4# Devices are designated by a string that corresponds to the enum in audio.h 5# - defines whether the speaker output path uses DRC 6# "TRUE" means DRC is enabled, "FALSE" or omission means DRC isn't used. 7 8global_configuration { 9 attached_output_devices AUDIO_DEVICE_OUT_EARPIECE|AUDIO_DEVICE_OUT_SPEAKER|AUDIO_DEVICE_OUT_TELEPHONY_TX 10 default_output_device AUDIO_DEVICE_OUT_SPEAKER 11 attached_input_devices AUDIO_DEVICE_IN_BUILTIN_MIC|AUDIO_DEVICE_IN_BACK_MIC|AUDIO_DEVICE_IN_REMOTE_SUBMIX|AUDIO_DEVICE_IN_TELEPHONY_RX 12 speaker_drc_enabled TRUE 13} 14 15# audio hardware module section: contains descriptors for all audio hw modules present on the 16# device. Each hw module node is named after the corresponding hw module library base name. 17# For instance, "primary" corresponds to audio.primary.<device>.so. 18# The "primary" module is mandatory and must include at least one output with 19# AUDIO_OUTPUT_FLAG_PRIMARY flag. 20# Each module descriptor contains one or more output profile descriptors and zero or more 21# input profile descriptors. Each profile lists all the parameters supported by a given output 22# or input stream category. 23# The "channel_masks", "formats", "devices" and "flags" are specified using strings corresponding 24# to enums in audio.h and audio_policy.h. They are concatenated by use of "|" without space or "\n". 25 26audio_hw_modules { 27 primary { 28 outputs { 29 primary { 30 sampling_rates 44100|48000 31 channel_masks AUDIO_CHANNEL_OUT_STEREO 32 formats AUDIO_FORMAT_PCM_16_BIT 33 devices AUDIO_DEVICE_OUT_EARPIECE|AUDIO_DEVICE_OUT_SPEAKER|AUDIO_DEVICE_OUT_WIRED_HEADSET|AUDIO_DEVICE_OUT_WIRED_HEADPHONE|AUDIO_DEVICE_OUT_ALL_SCO|AUDIO_DEVICE_OUT_AUX_DIGITAL 34 flags AUDIO_OUTPUT_FLAG_PRIMARY 35 } 36 deep_buffer { 37 sampling_rates 8000|11025|12000|16000|22050|24000|32000|44100|48000 38 channel_masks AUDIO_CHANNEL_OUT_STEREO 39 formats AUDIO_FORMAT_PCM_16_BIT 40 devices AUDIO_DEVICE_OUT_SPEAKER|AUDIO_DEVICE_OUT_EARPIECE|AUDIO_DEVICE_OUT_WIRED_HEADSET|AUDIO_DEVICE_OUT_WIRED_HEADPHONE|AUDIO_DEVICE_OUT_ALL_SCO|AUDIO_DEVICE_OUT_AUX_DIGITAL 41 flags AUDIO_OUTPUT_FLAG_DEEP_BUFFER 42 } 43 hdmi { 44 sampling_rates 44100|48000 45 channel_masks dynamic 46 formats AUDIO_FORMAT_PCM_16_BIT 47 devices AUDIO_DEVICE_OUT_AUX_DIGITAL 48 flags AUDIO_OUTPUT_FLAG_DIRECT 49 } 50 compress_offload { 51 sampling_rates 8000|11025|12000|16000|22050|24000|32000|44100|48000 52 channel_masks AUDIO_CHANNEL_OUT_MONO|AUDIO_CHANNEL_OUT_STEREO 53 formats AUDIO_FORMAT_MP3|AUDIO_FORMAT_AAC_LC|AUDIO_FORMAT_AAC_HE_V1|AUDIO_FORMAT_AAC_HE_V2 54 devices AUDIO_DEVICE_OUT_SPEAKER|AUDIO_DEVICE_OUT_WIRED_HEADSET|AUDIO_DEVICE_OUT_WIRED_HEADPHONE 55 flags AUDIO_OUTPUT_FLAG_DIRECT|AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD|AUDIO_OUTPUT_FLAG_NON_BLOCKING 56 } 57 voice_tx { 58 sampling_rates 8000|16000|48000 59 channel_masks AUDIO_CHANNEL_OUT_STEREO|AUDIO_CHANNEL_OUT_MONO 60 formats AUDIO_FORMAT_PCM_16_BIT 61 devices AUDIO_DEVICE_OUT_TELEPHONY_TX 62 } 63 } 64 inputs { 65 primary { 66 sampling_rates 8000|11025|12000|16000|22050|24000|32000|44100|48000 67 channel_masks AUDIO_CHANNEL_IN_MONO|AUDIO_CHANNEL_IN_STEREO|AUDIO_CHANNEL_IN_FRONT_BACK 68 formats AUDIO_FORMAT_PCM_16_BIT 69 devices AUDIO_DEVICE_IN_BUILTIN_MIC|AUDIO_DEVICE_IN_WIRED_HEADSET|AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET|AUDIO_DEVICE_IN_VOICE_CALL|AUDIO_DEVICE_IN_BACK_MIC 70 } 71 voice_rx { 72 sampling_rates 8000|16000|48000 73 channel_masks AUDIO_CHANNEL_IN_STEREO|AUDIO_CHANNEL_IN_MONO 74 formats AUDIO_FORMAT_PCM_16_BIT 75 devices AUDIO_DEVICE_IN_TELEPHONY_RX 76 } 77 } 78 } 79 a2dp { 80 outputs { 81 a2dp { 82 sampling_rates 44100 83 channel_masks AUDIO_CHANNEL_OUT_STEREO 84 formats AUDIO_FORMAT_PCM_16_BIT 85 devices AUDIO_DEVICE_OUT_ALL_A2DP 86 } 87 } 88 inputs { 89 a2dp { 90 sampling_rates 44100|48000 91 channel_masks AUDIO_CHANNEL_IN_MONO|AUDIO_CHANNEL_IN_STEREO 92 formats AUDIO_FORMAT_PCM_16_BIT 93 devices AUDIO_DEVICE_IN_BLUETOOTH_A2DP 94 } 95 } 96 } 97 usb { 98 outputs { 99 usb_accessory { 100 sampling_rates 44100 101 channel_masks AUDIO_CHANNEL_OUT_STEREO 102 formats AUDIO_FORMAT_PCM_16_BIT 103 devices AUDIO_DEVICE_OUT_USB_ACCESSORY 104 } 105 usb_device { 106 sampling_rates dynamic 107 channel_masks dynamic 108 formats dynamic 109 devices AUDIO_DEVICE_OUT_USB_DEVICE 110 } 111 } 112 inputs { 113 usb_device { 114 sampling_rates dynamic 115 channel_masks dynamic 116 formats dynamic 117 devices AUDIO_DEVICE_IN_USB_DEVICE 118 } 119 } 120 } 121 r_submix { 122 outputs { 123 submix { 124 sampling_rates 48000 125 channel_masks AUDIO_CHANNEL_OUT_STEREO 126 formats AUDIO_FORMAT_PCM_16_BIT 127 devices AUDIO_DEVICE_OUT_REMOTE_SUBMIX 128 } 129 } 130 inputs { 131 submix { 132 sampling_rates 48000 133 channel_masks AUDIO_CHANNEL_IN_STEREO 134 formats AUDIO_FORMAT_PCM_16_BIT 135 devices AUDIO_DEVICE_IN_REMOTE_SUBMIX 136 } 137 } 138 } 139} 140