1 /* 2 ** 3 ** Copyright (C) 2008 The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 //#define LOG_NDEBUG 0 19 #define LOG_TAG "MetadataRetrieverClient" 20 #include <utils/Log.h> 21 22 #include <sys/types.h> 23 #include <sys/stat.h> 24 #include <dirent.h> 25 #include <unistd.h> 26 27 #include <string.h> 28 #include <cutils/atomic.h> 29 #include <cutils/properties.h> 30 #include <binder/MemoryBase.h> 31 #include <binder/MemoryHeapBase.h> 32 #include <binder/IPCThreadState.h> 33 #include <binder/IServiceManager.h> 34 #include <media/MediaMetadataRetrieverInterface.h> 35 #include <media/MediaPlayerInterface.h> 36 #include <private/media/VideoFrame.h> 37 #include "MidiMetadataRetriever.h" 38 #include "MetadataRetrieverClient.h" 39 #include "StagefrightMetadataRetriever.h" 40 41 namespace android { 42 43 extern player_type getPlayerType(const char* url); 44 extern player_type getPlayerType(int fd, int64_t offset, int64_t length); 45 46 MetadataRetrieverClient::MetadataRetrieverClient(pid_t pid) 47 { 48 ALOGV("MetadataRetrieverClient constructor pid(%d)", pid); 49 mPid = pid; 50 mThumbnail = NULL; 51 mAlbumArt = NULL; 52 mRetriever = NULL; 53 } 54 55 MetadataRetrieverClient::~MetadataRetrieverClient() 56 { 57 ALOGV("MetadataRetrieverClient destructor"); 58 disconnect(); 59 } 60 61 status_t MetadataRetrieverClient::dump(int fd, const Vector<String16>& args) const 62 { 63 const size_t SIZE = 256; 64 char buffer[SIZE]; 65 String8 result; 66 result.append(" MetadataRetrieverClient\n"); 67 snprintf(buffer, 255, " pid(%d)\n", mPid); 68 result.append(buffer); 69 write(fd, result.string(), result.size()); 70 write(fd, "\n", 1); 71 return NO_ERROR; 72 } 73 74 void MetadataRetrieverClient::disconnect() 75 { 76 ALOGV("disconnect from pid %d", mPid); 77 Mutex::Autolock lock(mLock); 78 mRetriever.clear(); 79 mThumbnail.clear(); 80 mAlbumArt.clear(); 81 IPCThreadState::self()->flushCommands(); 82 } 83 84 static sp<MediaMetadataRetrieverBase> createRetriever(player_type playerType) 85 { 86 sp<MediaMetadataRetrieverBase> p; 87 switch (playerType) { 88 case STAGEFRIGHT_PLAYER: 89 case NU_PLAYER: 90 { 91 p = new StagefrightMetadataRetriever; 92 break; 93 } 94 case SONIVOX_PLAYER: 95 ALOGV("create midi metadata retriever"); 96 p = new MidiMetadataRetriever(); 97 break; 98 default: 99 // TODO: 100 // support for TEST_PLAYER 101 ALOGE("player type %d is not supported", playerType); 102 break; 103 } 104 if (p == NULL) { 105 ALOGE("failed to create a retriever object"); 106 } 107 return p; 108 } 109 110 status_t MetadataRetrieverClient::setDataSource( 111 const char *url, const KeyedVector<String8, String8> *headers) 112 { 113 ALOGV("setDataSource(%s)", url); 114 Mutex::Autolock lock(mLock); 115 if (url == NULL) { 116 return UNKNOWN_ERROR; 117 } 118 player_type playerType = getPlayerType(url); 119 ALOGV("player type = %d", playerType); 120 sp<MediaMetadataRetrieverBase> p = createRetriever(playerType); 121 if (p == NULL) return NO_INIT; 122 status_t ret = p->setDataSource(url, headers); 123 if (ret == NO_ERROR) mRetriever = p; 124 return ret; 125 } 126 127 status_t MetadataRetrieverClient::setDataSource(int fd, int64_t offset, int64_t length) 128 { 129 ALOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length); 130 Mutex::Autolock lock(mLock); 131 struct stat sb; 132 int ret = fstat(fd, &sb); 133 if (ret != 0) { 134 ALOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); 135 return BAD_VALUE; 136 } 137 ALOGV("st_dev = %llu", sb.st_dev); 138 ALOGV("st_mode = %u", sb.st_mode); 139 ALOGV("st_uid = %lu", sb.st_uid); 140 ALOGV("st_gid = %lu", sb.st_gid); 141 ALOGV("st_size = %llu", sb.st_size); 142 143 if (offset >= sb.st_size) { 144 ALOGE("offset (%lld) bigger than file size (%llu)", offset, sb.st_size); 145 ::close(fd); 146 return BAD_VALUE; 147 } 148 if (offset + length > sb.st_size) { 149 length = sb.st_size - offset; 150 ALOGV("calculated length = %lld", length); 151 } 152 153 player_type playerType = getPlayerType(fd, offset, length); 154 ALOGV("player type = %d", playerType); 155 sp<MediaMetadataRetrieverBase> p = createRetriever(playerType); 156 if (p == NULL) { 157 ::close(fd); 158 return NO_INIT; 159 } 160 status_t status = p->setDataSource(fd, offset, length); 161 if (status == NO_ERROR) mRetriever = p; 162 ::close(fd); 163 return status; 164 } 165 166 sp<IMemory> MetadataRetrieverClient::getFrameAtTime(int64_t timeUs, int option) 167 { 168 ALOGV("getFrameAtTime: time(%lld us) option(%d)", timeUs, option); 169 Mutex::Autolock lock(mLock); 170 mThumbnail.clear(); 171 if (mRetriever == NULL) { 172 ALOGE("retriever is not initialized"); 173 return NULL; 174 } 175 VideoFrame *frame = mRetriever->getFrameAtTime(timeUs, option); 176 if (frame == NULL) { 177 ALOGE("failed to capture a video frame"); 178 return NULL; 179 } 180 size_t size = sizeof(VideoFrame) + frame->mSize; 181 sp<MemoryHeapBase> heap = new MemoryHeapBase(size, 0, "MetadataRetrieverClient"); 182 if (heap == NULL) { 183 ALOGE("failed to create MemoryDealer"); 184 delete frame; 185 return NULL; 186 } 187 mThumbnail = new MemoryBase(heap, 0, size); 188 if (mThumbnail == NULL) { 189 ALOGE("not enough memory for VideoFrame size=%u", size); 190 delete frame; 191 return NULL; 192 } 193 VideoFrame *frameCopy = static_cast<VideoFrame *>(mThumbnail->pointer()); 194 frameCopy->mWidth = frame->mWidth; 195 frameCopy->mHeight = frame->mHeight; 196 frameCopy->mDisplayWidth = frame->mDisplayWidth; 197 frameCopy->mDisplayHeight = frame->mDisplayHeight; 198 frameCopy->mSize = frame->mSize; 199 frameCopy->mRotationAngle = frame->mRotationAngle; 200 ALOGV("rotation: %d", frameCopy->mRotationAngle); 201 frameCopy->mData = (uint8_t *)frameCopy + sizeof(VideoFrame); 202 memcpy(frameCopy->mData, frame->mData, frame->mSize); 203 delete frame; // Fix memory leakage 204 return mThumbnail; 205 } 206 207 sp<IMemory> MetadataRetrieverClient::extractAlbumArt() 208 { 209 ALOGV("extractAlbumArt"); 210 Mutex::Autolock lock(mLock); 211 mAlbumArt.clear(); 212 if (mRetriever == NULL) { 213 ALOGE("retriever is not initialized"); 214 return NULL; 215 } 216 MediaAlbumArt *albumArt = mRetriever->extractAlbumArt(); 217 if (albumArt == NULL) { 218 ALOGE("failed to extract an album art"); 219 return NULL; 220 } 221 size_t size = sizeof(MediaAlbumArt) + albumArt->mSize; 222 sp<MemoryHeapBase> heap = new MemoryHeapBase(size, 0, "MetadataRetrieverClient"); 223 if (heap == NULL) { 224 ALOGE("failed to create MemoryDealer object"); 225 delete albumArt; 226 return NULL; 227 } 228 mAlbumArt = new MemoryBase(heap, 0, size); 229 if (mAlbumArt == NULL) { 230 ALOGE("not enough memory for MediaAlbumArt size=%u", size); 231 delete albumArt; 232 return NULL; 233 } 234 MediaAlbumArt *albumArtCopy = static_cast<MediaAlbumArt *>(mAlbumArt->pointer()); 235 albumArtCopy->mSize = albumArt->mSize; 236 albumArtCopy->mData = (uint8_t *)albumArtCopy + sizeof(MediaAlbumArt); 237 memcpy(albumArtCopy->mData, albumArt->mData, albumArt->mSize); 238 delete albumArt; // Fix memory leakage 239 return mAlbumArt; 240 } 241 242 const char* MetadataRetrieverClient::extractMetadata(int keyCode) 243 { 244 ALOGV("extractMetadata"); 245 Mutex::Autolock lock(mLock); 246 if (mRetriever == NULL) { 247 ALOGE("retriever is not initialized"); 248 return NULL; 249 } 250 return mRetriever->extractMetadata(keyCode); 251 } 252 253 }; // namespace android 254
