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 package android.media; 18 19 import android.media.audio.common.AudioChannelLayout; 20 import android.media.audio.common.AudioFormatDescription; 21 import android.media.audio.common.AudioStreamType; 22 import android.media.IAudioTrack; 23 24 /** 25 * CreateTrackOutput contains all output arguments returned by AudioFlinger to AudioTrack 26 * when calling createTrack() including arguments that were passed as I/O for update by 27 * CreateTrackRequest. 28 * 29 * {@hide} 30 */ 31 parcelable CreateTrackResponse { 32 /** Bitmask, indexed by AudioOutputFlags. */ 33 int flags; 34 long frameCount; 35 long notificationFrameCount; 36 /** Interpreted as audio_port_handle_t[]. */ 37 int[] selectedDeviceIds; 38 int sessionId; 39 int sampleRate; 40 AudioStreamType streamType; 41 long afFrameCount; 42 int afSampleRate; 43 AudioChannelLayout afChannelMask; 44 AudioFormatDescription afFormat; 45 int afLatencyMs; 46 int afTrackFlags; 47 /** Interpreted as audio_io_handle_t. */ 48 int outputId; 49 /** Interpreted as audio_port_handle_t. */ 50 int portId; 51 /** The newly created track. */ 52 @nullable IAudioTrack audioTrack; 53 } 54