StagefrightMediaScanner.cpp revision c7fc37a3dab9bd1f96713649f351b5990e6316ff
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//#define LOG_NDEBUG 0 18#define LOG_TAG "StagefrightMediaScanner" 19#include <utils/Log.h> 20 21#include <media/stagefright/StagefrightMediaScanner.h> 22 23#include <media/mediametadataretriever.h> 24#include <private/media/VideoFrame.h> 25 26// Sonivox includes 27#include <libsonivox/eas.h> 28 29namespace android { 30 31StagefrightMediaScanner::StagefrightMediaScanner() 32 : mRetriever(new MediaMetadataRetriever) { 33} 34 35StagefrightMediaScanner::~StagefrightMediaScanner() {} 36 37static bool FileHasAcceptableExtension(const char *extension) { 38 static const char *kValidExtensions[] = { 39 ".mp3", ".mp4", ".m4a", ".3gp", ".3gpp", ".3g2", ".3gpp2", 40 ".mpeg", ".ogg", ".mid", ".smf", ".imy", ".wma", ".aac", 41 ".wav", ".amr", ".midi", ".xmf", ".rtttl", ".rtx", ".ota", 42 ".mkv", ".mka", ".webm", ".ts", ".fl" 43 }; 44 static const size_t kNumValidExtensions = 45 sizeof(kValidExtensions) / sizeof(kValidExtensions[0]); 46 47 for (size_t i = 0; i < kNumValidExtensions; ++i) { 48 if (!strcasecmp(extension, kValidExtensions[i])) { 49 return true; 50 } 51 } 52 53 return false; 54} 55 56static status_t HandleMIDI( 57 const char *filename, MediaScannerClient *client) { 58 // get the library configuration and do sanity check 59 const S_EAS_LIB_CONFIG* pLibConfig = EAS_Config(); 60 if ((pLibConfig == NULL) || (LIB_VERSION != pLibConfig->libVersion)) { 61 LOGE("EAS library/header mismatch\n"); 62 return UNKNOWN_ERROR; 63 } 64 EAS_I32 temp; 65 66 // spin up a new EAS engine 67 EAS_DATA_HANDLE easData = NULL; 68 EAS_HANDLE easHandle = NULL; 69 EAS_RESULT result = EAS_Init(&easData); 70 if (result == EAS_SUCCESS) { 71 EAS_FILE file; 72 file.path = filename; 73 file.fd = 0; 74 file.offset = 0; 75 file.length = 0; 76 result = EAS_OpenFile(easData, &file, &easHandle); 77 } 78 if (result == EAS_SUCCESS) { 79 result = EAS_Prepare(easData, easHandle); 80 } 81 if (result == EAS_SUCCESS) { 82 result = EAS_ParseMetaData(easData, easHandle, &temp); 83 } 84 if (easHandle) { 85 EAS_CloseFile(easData, easHandle); 86 } 87 if (easData) { 88 EAS_Shutdown(easData); 89 } 90 91 if (result != EAS_SUCCESS) { 92 return UNKNOWN_ERROR; 93 } 94 95 char buffer[20]; 96 sprintf(buffer, "%ld", temp); 97 if (!client->addStringTag("duration", buffer)) return UNKNOWN_ERROR; 98 99 return OK; 100} 101 102status_t StagefrightMediaScanner::processFile( 103 const char *path, const char *mimeType, 104 MediaScannerClient &client) { 105 LOGV("processFile '%s'.", path); 106 107 client.setLocale(locale()); 108 client.beginFile(); 109 110 const char *extension = strrchr(path, '.'); 111 112 if (!extension) { 113 return UNKNOWN_ERROR; 114 } 115 116 if (!FileHasAcceptableExtension(extension)) { 117 client.endFile(); 118 119 return UNKNOWN_ERROR; 120 } 121 122 if (!strcasecmp(extension, ".mid") 123 || !strcasecmp(extension, ".smf") 124 || !strcasecmp(extension, ".imy") 125 || !strcasecmp(extension, ".midi") 126 || !strcasecmp(extension, ".xmf") 127 || !strcasecmp(extension, ".rtttl") 128 || !strcasecmp(extension, ".rtx") 129 || !strcasecmp(extension, ".ota")) { 130 return HandleMIDI(path, &client); 131 } 132 133 if (mRetriever->setDataSource(path) == OK 134 && mRetriever->setMode( 135 METADATA_MODE_METADATA_RETRIEVAL_ONLY) == OK) { 136 const char *value; 137 if ((value = mRetriever->extractMetadata( 138 METADATA_KEY_MIMETYPE)) != NULL) { 139 client.setMimeType(value); 140 } 141 142 struct KeyMap { 143 const char *tag; 144 int key; 145 }; 146 static const KeyMap kKeyMap[] = { 147 { "tracknumber", METADATA_KEY_CD_TRACK_NUMBER }, 148 { "discnumber", METADATA_KEY_DISC_NUMBER }, 149 { "album", METADATA_KEY_ALBUM }, 150 { "artist", METADATA_KEY_ARTIST }, 151 { "albumartist", METADATA_KEY_ALBUMARTIST }, 152 { "composer", METADATA_KEY_COMPOSER }, 153 { "genre", METADATA_KEY_GENRE }, 154 { "title", METADATA_KEY_TITLE }, 155 { "year", METADATA_KEY_YEAR }, 156 { "duration", METADATA_KEY_DURATION }, 157 { "writer", METADATA_KEY_WRITER }, 158 }; 159 static const size_t kNumEntries = sizeof(kKeyMap) / sizeof(kKeyMap[0]); 160 161 for (size_t i = 0; i < kNumEntries; ++i) { 162 const char *value; 163 if ((value = mRetriever->extractMetadata(kKeyMap[i].key)) != NULL) { 164 client.addStringTag(kKeyMap[i].tag, value); 165 } 166 } 167 } 168 169 client.endFile(); 170 171 return OK; 172} 173 174char *StagefrightMediaScanner::extractAlbumArt(int fd) { 175 LOGV("extractAlbumArt %d", fd); 176 177 off64_t size = lseek64(fd, 0, SEEK_END); 178 if (size < 0) { 179 return NULL; 180 } 181 lseek64(fd, 0, SEEK_SET); 182 183 if (mRetriever->setDataSource(fd, 0, size) == OK 184 && mRetriever->setMode( 185 METADATA_MODE_FRAME_CAPTURE_ONLY) == OK) { 186 sp<IMemory> mem = mRetriever->extractAlbumArt(); 187 188 if (mem != NULL) { 189 MediaAlbumArt *art = static_cast<MediaAlbumArt *>(mem->pointer()); 190 191 char *data = (char *)malloc(art->mSize + 4); 192 *(int32_t *)data = art->mSize; 193 memcpy(&data[4], &art[1], art->mSize); 194 195 return data; 196 } 197 } 198 199 return NULL; 200} 201 202} // namespace android 203