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 8 global_configuration { 9 attached_output_devices AUDIO_DEVICE_OUT_EARPIECE|AUDIO_DEVICE_OUT_SPEAKER 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 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 26 audio_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|16000|22050|32000|44100|48000 52 channel_masks AUDIO_CHANNEL_OUT_MONO|AUDIO_CHANNEL_OUT_STEREO 53 formats AUDIO_FORMAT_MP3|AUDIO_FORMAT_AAC 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 } 58 inputs { 59 primary { 60 sampling_rates 8000|11025|12000|16000|22050|24000|32000|44100|48000 61 channel_masks AUDIO_CHANNEL_IN_MONO|AUDIO_CHANNEL_IN_STEREO|AUDIO_CHANNEL_IN_FRONT_BACK 62 formats AUDIO_FORMAT_PCM_16_BIT 63 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 64 } 65 } 66 } 67 a2dp { 68 outputs { 69 a2dp { 70 sampling_rates 44100 71 channel_masks AUDIO_CHANNEL_OUT_STEREO 72 formats AUDIO_FORMAT_PCM_16_BIT 73 devices AUDIO_DEVICE_OUT_ALL_A2DP 74 } 75 } 76 } 77 usb { 78 outputs { 79 usb_accessory { 80 sampling_rates 44100 81 channel_masks AUDIO_CHANNEL_OUT_STEREO 82 formats AUDIO_FORMAT_PCM_16_BIT 83 devices AUDIO_DEVICE_OUT_USB_ACCESSORY 84 } 85 usb_device { 86 sampling_rates 44100 87 channel_masks AUDIO_CHANNEL_OUT_STEREO 88 formats AUDIO_FORMAT_PCM_16_BIT 89 devices AUDIO_DEVICE_OUT_USB_DEVICE 90 } 91 } 92 } 93 r_submix { 94 outputs { 95 submix { 96 sampling_rates 48000 97 channel_masks AUDIO_CHANNEL_OUT_STEREO 98 formats AUDIO_FORMAT_PCM_16_BIT 99 devices AUDIO_DEVICE_OUT_REMOTE_SUBMIX 100 } 101 } 102 inputs { 103 submix { 104 sampling_rates 48000 105 channel_masks AUDIO_CHANNEL_IN_STEREO 106 formats AUDIO_FORMAT_PCM_16_BIT 107 devices AUDIO_DEVICE_IN_REMOTE_SUBMIX 108 } 109 } 110 } 111 } 112
