1 /* 2 * Copyright (C) 2020 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 syntax = "proto3"; 18 19 package media.audiotestharness.service; 20 21 option java_package = "com.android.media.audiotestharness.proto"; 22 23 // Models the low-level audio-format of a given raw audio stream. 24 message AudioFormat { 25 // The desired sample rate, by default 44,100. 26 float sampleRate = 1; 27 28 // The desired size of each sample, by default 16. 29 int32 sampleSizeBits = 2; 30 31 // The desired number of channels to capture, by default 1. 32 int32 channels = 3; 33 34 // Whether the samples should be recorded signed or unsigned, by default true 35 // meaning that the samples are signed. 36 bool signed = 4; 37 38 // Whether the samples should be big endian or little endian, by default this 39 // is false meaning that the audio is little endian. 40 bool bigEndian = 5; 41 }