1 /* 2 * Copyright (C) 2014 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 #define LOG_TAG "AudioPolicy" 18 //#define LOG_NDEBUG 0 19 #include <utils/Log.h> 20 #include <media/AudioPolicy.h> 21 22 namespace android { 23 24 // 25 // AttributeMatchCriterion implementation 26 // AttributeMatchCriterion(audio_usage_t usage,audio_source_t source,uint32_t rule)27AttributeMatchCriterion::AttributeMatchCriterion(audio_usage_t usage, 28 audio_source_t source, 29 uint32_t rule) 30 : mRule(rule) 31 { 32 if (mRule == RULE_MATCH_ATTRIBUTE_USAGE || 33 mRule == RULE_EXCLUDE_ATTRIBUTE_USAGE) { 34 mAttr.mUsage = usage; 35 } else { 36 mAttr.mSource = source; 37 } 38 } 39 readFromParcel(Parcel * parcel)40status_t AttributeMatchCriterion::readFromParcel(Parcel *parcel) 41 { 42 mRule = parcel->readInt32(); 43 if (mRule == RULE_MATCH_ATTRIBUTE_USAGE || 44 mRule == RULE_EXCLUDE_ATTRIBUTE_USAGE) { 45 mAttr.mUsage = (audio_usage_t)parcel->readInt32(); 46 } else { 47 mAttr.mSource = (audio_source_t)parcel->readInt32(); 48 } 49 return NO_ERROR; 50 } 51 writeToParcel(Parcel * parcel) const52status_t AttributeMatchCriterion::writeToParcel(Parcel *parcel) const 53 { 54 parcel->writeInt32(mRule); 55 parcel->writeInt32(mAttr.mUsage); 56 return NO_ERROR; 57 } 58 59 // 60 // AudioMix implementation 61 // 62 readFromParcel(Parcel * parcel)63status_t AudioMix::readFromParcel(Parcel *parcel) 64 { 65 mMixType = parcel->readInt32(); 66 mFormat.sample_rate = (uint32_t)parcel->readInt32(); 67 mFormat.channel_mask = (audio_channel_mask_t)parcel->readInt32(); 68 mFormat.format = (audio_format_t)parcel->readInt32(); 69 mRouteFlags = parcel->readInt32(); 70 mRegistrationId = parcel->readString8(); 71 mCbFlags = (uint32_t)parcel->readInt32(); 72 size_t size = (size_t)parcel->readInt32(); 73 if (size > MAX_CRITERIA_PER_MIX) { 74 size = MAX_CRITERIA_PER_MIX; 75 } 76 for (size_t i = 0; i < size; i++) { 77 AttributeMatchCriterion criterion; 78 if (criterion.readFromParcel(parcel) == NO_ERROR) { 79 mCriteria.add(criterion); 80 } 81 } 82 return NO_ERROR; 83 } 84 writeToParcel(Parcel * parcel) const85status_t AudioMix::writeToParcel(Parcel *parcel) const 86 { 87 parcel->writeInt32(mMixType); 88 parcel->writeInt32(mFormat.sample_rate); 89 parcel->writeInt32(mFormat.channel_mask); 90 parcel->writeInt32(mFormat.format); 91 parcel->writeInt32(mRouteFlags); 92 parcel->writeString8(mRegistrationId); 93 parcel->writeInt32(mCbFlags); 94 size_t size = mCriteria.size(); 95 if (size > MAX_CRITERIA_PER_MIX) { 96 size = MAX_CRITERIA_PER_MIX; 97 } 98 size_t sizePosition = parcel->dataPosition(); 99 parcel->writeInt32(size); 100 size_t finalSize = size; 101 for (size_t i = 0; i < size; i++) { 102 size_t position = parcel->dataPosition(); 103 if (mCriteria[i].writeToParcel(parcel) != NO_ERROR) { 104 parcel->setDataPosition(position); 105 finalSize--; 106 } 107 } 108 if (size != finalSize) { 109 size_t position = parcel->dataPosition(); 110 parcel->setDataPosition(sizePosition); 111 parcel->writeInt32(finalSize); 112 parcel->setDataPosition(position); 113 } 114 return NO_ERROR; 115 } 116 117 } // namespace android 118