|  | syntax = "proto2"; | 
|  | option optimize_for = LITE_RUNTIME; | 
|  | package webrtc.audioproc; | 
|  |  | 
|  | message Test { | 
|  | optional int32 num_reverse_channels = 1; | 
|  | optional int32 num_input_channels = 2; | 
|  | optional int32 num_output_channels = 3; | 
|  | optional int32 sample_rate = 4; | 
|  |  | 
|  | message Frame { | 
|  | } | 
|  |  | 
|  | repeated Frame frame = 5; | 
|  |  | 
|  | optional int32 analog_level_average = 6; | 
|  | optional int32 max_output_average = 7; | 
|  |  | 
|  | optional int32 has_echo_count = 8; | 
|  | optional int32 has_voice_count = 9; | 
|  | optional int32 is_saturated_count = 10; | 
|  |  | 
|  | message Statistic { | 
|  | optional int32 instant = 1; | 
|  | optional int32 average = 2; | 
|  | optional int32 maximum = 3; | 
|  | optional int32 minimum = 4; | 
|  | } | 
|  |  | 
|  | message EchoMetrics { | 
|  | optional Statistic residual_echo_return_loss = 1; | 
|  | optional Statistic echo_return_loss = 2; | 
|  | optional Statistic echo_return_loss_enhancement = 3; | 
|  | optional Statistic a_nlp = 4; | 
|  | } | 
|  |  | 
|  | optional EchoMetrics echo_metrics = 11; | 
|  |  | 
|  | message DelayMetrics { | 
|  | optional int32 median = 1; | 
|  | optional int32 std = 2; | 
|  | optional float fraction_poor_delays = 3; | 
|  | } | 
|  |  | 
|  | optional DelayMetrics delay_metrics = 12; | 
|  |  | 
|  | optional int32 rms_level = 13; | 
|  |  | 
|  | optional float ns_speech_probability_average = 14; | 
|  |  | 
|  | optional bool use_aec_extended_filter = 15; | 
|  | } | 
|  |  | 
|  | message OutputData { | 
|  | repeated Test test = 1; | 
|  | } | 
|  |  |