1 /* 2 * Copyright (C) 2018 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_NDEBUG 0 18 #define LOG_TAG "AudioPresentationInfo" 19 20 #include <vector> 21 22 #include "AudioPresentationInfo.h" 23 24 #include <utils/Log.h> 25 26 namespace android { 27 28 void serializeAudioPresentations(const AudioPresentationCollection& presentations, 29 std::ostream* serializedOutput) { 30 uint32_t numPresentations = presentations.size(); 31 serializedOutput->write(reinterpret_cast<char*>(&numPresentations), sizeof(numPresentations)); 32 for (const auto& ap : presentations) { 33 if (ap.mVersion == PRESENTATION_VERSION_1) { 34 serializedOutput->write( 35 const_cast<char*>(reinterpret_cast<const char*>(&ap.mVersion)), 36 sizeof(ap.mVersion)); 37 serializedOutput->write( 38 const_cast<char*>(reinterpret_cast<const char*>(&ap.mPresentationId)), 39 sizeof(ap.mPresentationId)); 40 serializedOutput->write( 41 const_cast<char*>(reinterpret_cast<const char*>(&ap.mProgramId)), 42 sizeof(ap.mProgramId)); 43 44 uint32_t numLabels = ap.mLabels.size(); 45 serializedOutput->write( 46 const_cast<char*>(reinterpret_cast<const char*>(&numLabels)), 47 sizeof(numLabels)); 48 for (const auto& label : ap.mLabels) { 49 uint32_t labelKeySize = label.first.size(); 50 serializedOutput->write( 51 const_cast<char*>(reinterpret_cast<const char*>(&labelKeySize)), 52 sizeof(labelKeySize)); 53 serializedOutput->write(label.first.c_str(), labelKeySize); 54 55 uint32_t labelValSize = label.second.size(); 56 serializedOutput->write( 57 const_cast<char*>(reinterpret_cast<const char*>(&labelValSize)), 58 sizeof(labelValSize)); 59 serializedOutput->write(label.second.c_str(), labelValSize); 60 } 61 62 uint32_t langSize = ap.mLanguage.size(); 63 serializedOutput->write( 64 const_cast<char*>(reinterpret_cast<const char*>(&langSize)), 65 sizeof(langSize)); 66 serializedOutput->write(ap.mLanguage.c_str(), langSize); 67 68 serializedOutput->write( 69 const_cast<char*>(reinterpret_cast<const char*>(&ap.mMasteringIndication)), 70 sizeof(ap.mMasteringIndication)); 71 serializedOutput->write( 72 const_cast<char*>(reinterpret_cast<const char*>(&ap.mAudioDescriptionAvailable)), 73 sizeof(ap.mAudioDescriptionAvailable)); 74 serializedOutput->write( 75 const_cast<char*>(reinterpret_cast<const char*>(&ap.mSpokenSubtitlesAvailable)), 76 sizeof(ap.mSpokenSubtitlesAvailable)); 77 serializedOutput->write( 78 const_cast<char*>(reinterpret_cast<const char*>(&ap.mDialogueEnhancementAvailable)), 79 sizeof(ap.mDialogueEnhancementAvailable)); 80 } 81 } 82 } 83 84 status_t deserializeAudioPresentations(std::istream* serializedInput, 85 AudioPresentationCollection *presentations) { 86 uint32_t numPresentations; 87 serializedInput->read(reinterpret_cast<char*>(&numPresentations), sizeof(numPresentations)); 88 for (uint32_t i = 0; i < numPresentations; ++i) { 89 uint32_t version; 90 serializedInput->read(reinterpret_cast<char*>(&version), sizeof(version)); 91 if (version == PRESENTATION_VERSION_1) { 92 AudioPresentationV1 ap; 93 serializedInput->read( 94 reinterpret_cast<char*>(&ap.mPresentationId), 95 sizeof(ap.mPresentationId)); 96 serializedInput->read(reinterpret_cast<char*>(&ap.mProgramId), sizeof(ap.mProgramId)); 97 98 uint32_t numLabels; 99 serializedInput->read(reinterpret_cast<char*>(&numLabels), sizeof(numLabels)); 100 for (uint32_t j = 0; j < numLabels; ++j) { 101 uint32_t labelKeySize; 102 serializedInput->read(reinterpret_cast<char*>(&labelKeySize), sizeof(labelKeySize)); 103 std::vector<char> labelKey(labelKeySize); 104 serializedInput->read(labelKey.data(), labelKeySize); 105 106 uint32_t labelValSize; 107 serializedInput->read(reinterpret_cast<char*>(&labelValSize), sizeof(labelValSize)); 108 std::vector<char> labelVal(labelValSize); 109 serializedInput->read(labelVal.data(), labelValSize); 110 ap.mLabels.emplace( 111 std::string(reinterpret_cast<char*>(labelKey.data()), labelKeySize), 112 std::string(reinterpret_cast<char*>(labelVal.data()), labelValSize)); 113 } 114 uint32_t languageSize; 115 serializedInput->read(reinterpret_cast<char*>(&languageSize), sizeof(languageSize)); 116 std::vector<char> language(languageSize); 117 serializedInput->read(language.data(), languageSize); 118 ap.mLanguage = std::string(reinterpret_cast<char*>(language.data()), languageSize); 119 serializedInput->read(reinterpret_cast<char*>(&ap.mMasteringIndication), 120 sizeof(ap.mMasteringIndication)); 121 serializedInput->read(reinterpret_cast<char*>(&ap.mAudioDescriptionAvailable), 122 sizeof(ap.mAudioDescriptionAvailable)); 123 serializedInput->read(reinterpret_cast<char*>(&ap.mSpokenSubtitlesAvailable), 124 sizeof(ap.mSpokenSubtitlesAvailable)); 125 serializedInput->read(reinterpret_cast<char*>(&ap.mDialogueEnhancementAvailable), 126 sizeof(ap.mDialogueEnhancementAvailable)); 127 presentations->push_back(std::move(ap)); 128 } else { 129 ALOGE("Audio presentation info version is not supported"); 130 return INVALID_OPERATION; 131 } 132 } 133 return OK; 134 } 135 136 } // namespace android 137
