1/* 2 * Copyright (C) 2009 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#include "include/AMRExtractor.h" 18 19#if CHROMIUM_AVAILABLE 20#include "include/chromium_http_stub.h" 21#endif 22 23#include "include/AACExtractor.h" 24#include "include/DRMExtractor.h" 25#include "include/FLACExtractor.h" 26#include "include/FragmentedMP4Extractor.h" 27#include "include/HTTPBase.h" 28#include "include/MP3Extractor.h" 29#include "include/MPEG2PSExtractor.h" 30#include "include/MPEG2TSExtractor.h" 31#include "include/MPEG4Extractor.h" 32#include "include/NuCachedSource2.h" 33#include "include/OggExtractor.h" 34#include "include/WAVExtractor.h" 35#include "include/WVMExtractor.h" 36 37#include "matroska/MatroskaExtractor.h" 38 39#include <media/stagefright/foundation/AMessage.h> 40#include <media/stagefright/DataSource.h> 41#include <media/stagefright/FileSource.h> 42#include <media/stagefright/MediaErrors.h> 43#include <utils/String8.h> 44 45#include <cutils/properties.h> 46 47namespace android { 48 49bool DataSource::getUInt16(off64_t offset, uint16_t *x) { 50 *x = 0; 51 52 uint8_t byte[2]; 53 if (readAt(offset, byte, 2) != 2) { 54 return false; 55 } 56 57 *x = (byte[0] << 8) | byte[1]; 58 59 return true; 60} 61 62status_t DataSource::getSize(off64_t *size) { 63 *size = 0; 64 65 return ERROR_UNSUPPORTED; 66} 67 68//////////////////////////////////////////////////////////////////////////////// 69 70Mutex DataSource::gSnifferMutex; 71List<DataSource::SnifferFunc> DataSource::gSniffers; 72 73bool DataSource::sniff( 74 String8 *mimeType, float *confidence, sp<AMessage> *meta) { 75 *mimeType = ""; 76 *confidence = 0.0f; 77 meta->clear(); 78 79 Mutex::Autolock autoLock(gSnifferMutex); 80 for (List<SnifferFunc>::iterator it = gSniffers.begin(); 81 it != gSniffers.end(); ++it) { 82 String8 newMimeType; 83 float newConfidence; 84 sp<AMessage> newMeta; 85 if ((*it)(this, &newMimeType, &newConfidence, &newMeta)) { 86 if (newConfidence > *confidence) { 87 *mimeType = newMimeType; 88 *confidence = newConfidence; 89 *meta = newMeta; 90 } 91 } 92 } 93 94 return *confidence > 0.0; 95} 96 97// static 98void DataSource::RegisterSniffer(SnifferFunc func) { 99 Mutex::Autolock autoLock(gSnifferMutex); 100 101 for (List<SnifferFunc>::iterator it = gSniffers.begin(); 102 it != gSniffers.end(); ++it) { 103 if (*it == func) { 104 return; 105 } 106 } 107 108 gSniffers.push_back(func); 109} 110 111// static 112void DataSource::RegisterDefaultSniffers() { 113 RegisterSniffer(SniffMPEG4); 114 RegisterSniffer(SniffFragmentedMP4); 115 RegisterSniffer(SniffMatroska); 116 RegisterSniffer(SniffOgg); 117 RegisterSniffer(SniffWAV); 118 RegisterSniffer(SniffFLAC); 119 RegisterSniffer(SniffAMR); 120 RegisterSniffer(SniffMPEG2TS); 121 RegisterSniffer(SniffMP3); 122 RegisterSniffer(SniffAAC); 123 RegisterSniffer(SniffMPEG2PS); 124 RegisterSniffer(SniffWVM); 125 126 char value[PROPERTY_VALUE_MAX]; 127 if (property_get("drm.service.enabled", value, NULL) 128 && (!strcmp(value, "1") || !strcasecmp(value, "true"))) { 129 RegisterSniffer(SniffDRM); 130 } 131} 132 133// static 134sp<DataSource> DataSource::CreateFromURI( 135 const char *uri, const KeyedVector<String8, String8> *headers) { 136 bool isWidevine = !strncasecmp("widevine://", uri, 11); 137 138 sp<DataSource> source; 139 if (!strncasecmp("file://", uri, 7)) { 140 source = new FileSource(uri + 7); 141 } else if (!strncasecmp("http://", uri, 7) 142 || !strncasecmp("https://", uri, 8) 143 || isWidevine) { 144 sp<HTTPBase> httpSource = HTTPBase::Create(); 145 146 String8 tmp; 147 if (isWidevine) { 148 tmp = String8("http://"); 149 tmp.append(uri + 11); 150 151 uri = tmp.string(); 152 } 153 154 if (httpSource->connect(uri, headers) != OK) { 155 return NULL; 156 } 157 158 if (!isWidevine) { 159 String8 cacheConfig; 160 bool disconnectAtHighwatermark; 161 if (headers != NULL) { 162 KeyedVector<String8, String8> copy = *headers; 163 NuCachedSource2::RemoveCacheSpecificHeaders( 164 ©, &cacheConfig, &disconnectAtHighwatermark); 165 } 166 167 source = new NuCachedSource2( 168 httpSource, 169 cacheConfig.isEmpty() ? NULL : cacheConfig.string()); 170 } else { 171 // We do not want that prefetching, caching, datasource wrapper 172 // in the widevine:// case. 173 source = httpSource; 174 } 175 176# if CHROMIUM_AVAILABLE 177 } else if (!strncasecmp("data:", uri, 5)) { 178 source = createDataUriSource(uri); 179#endif 180 } else { 181 // Assume it's a filename. 182 source = new FileSource(uri); 183 } 184 185 if (source == NULL || source->initCheck() != OK) { 186 return NULL; 187 } 188 189 return source; 190} 191 192String8 DataSource::getMIMEType() const { 193 return String8("application/octet-stream"); 194} 195 196} // namespace android 197