# Global configuration section: lists input and output devices always present on the device # as well as the output device selected by default. # Devices are designated by a string that corresponds to the enum in audio.h global_configuration { attached_output_devices AUDIO_DEVICE_OUT_SPEAKER default_output_device AUDIO_DEVICE_OUT_SPEAKER attached_input_devices AUDIO_DEVICE_IN_BUILTIN_MIC } # audio hardware module section: contains descriptors for all audio hw modules present on the # device. Each hw module node is named after the corresponding hw module library base name. # For instance, "primary" corresponds to audio.primary..so. # The "primary" module is mandatory and must include at least one output with # AUDIO_OUTPUT_FLAG_PRIMARY flag. # Each module descriptor contains one or more output profile descriptors and zero or more # input profile descriptors. Each profile lists all the parameters supported by a given output # or input stream category. # The "channel_masks", "formats", "devices" and "flags" are specified using strings corresponding # to enums in audio.h and audio_policy.h. They are concatenated by use of "|" without space or "\n". audio_hw_modules { primary { outputs { primary { sampling_rates 44100 channel_masks AUDIO_CHANNEL_OUT_STEREO formats AUDIO_FORMAT_PCM_16_BIT devices AUDIO_DEVICE_OUT_SPEAKER|AUDIO_DEVICE_OUT_WIRED_HEADSET|AUDIO_DEVICE_OUT_WIRED_HEADPHONE flags AUDIO_OUTPUT_FLAG_PRIMARY } } inputs { primary { sampling_rates 8000|11025|16000|22050|32000|44100|48000 channel_masks AUDIO_CHANNEL_IN_MONO|AUDIO_CHANNEL_IN_STEREO formats AUDIO_FORMAT_PCM_16_BIT devices AUDIO_DEVICE_IN_BUILTIN_MIC } } } hdmi { outputs { stereo { sampling_rates 44100|48000 channel_masks AUDIO_CHANNEL_OUT_STEREO formats AUDIO_FORMAT_PCM_16_BIT devices AUDIO_DEVICE_OUT_AUX_DIGITAL } multichannel { sampling_rates 44100|48000 channel_masks dynamic formats AUDIO_FORMAT_PCM_16_BIT devices AUDIO_DEVICE_OUT_AUX_DIGITAL flags AUDIO_OUTPUT_FLAG_DIRECT } } } a2dp { outputs { a2dp { sampling_rates 44100 channel_masks AUDIO_CHANNEL_OUT_STEREO formats AUDIO_FORMAT_PCM_16_BIT devices AUDIO_DEVICE_OUT_ALL_A2DP } } } r_submix { outputs { r_submix { sampling_rates 44100|48000 channel_masks AUDIO_CHANNEL_OUT_STEREO formats AUDIO_FORMAT_PCM_16_BIT devices AUDIO_DEVICE_OUT_REMOTE_SUBMIX } multichannel { sampling_rates 44100|48000 channel_masks AUDIO_CHANNEL_OUT_5POINT1 formats AUDIO_FORMAT_PCM_16_BIT devices AUDIO_DEVICE_OUT_REMOTE_SUBMIX flags AUDIO_OUTPUT_FLAG_DIRECT } } inputs { r_submix { sampling_rates 44100|48000 channel_masks AUDIO_CHANNEL_IN_MONO|AUDIO_CHANNEL_IN_STEREO|AUDIO_CHANNEL_IN_5POINT1EMUL formats AUDIO_FORMAT_PCM_16_BIT devices AUDIO_DEVICE_IN_REMOTE_SUBMIX } } } }