/*
* Copyright (C) 2006 The Android Open Source Project
* Copyright (C) 2013 YIXIA.COM
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.vov.vitamio;
import android.content.ContentProviderClient;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.net.Uri;
import android.os.RemoteException;
import android.text.TextUtils;
import io.vov.vitamio.provider.MediaStore;
import io.vov.vitamio.provider.MediaStore.Video;
import io.vov.vitamio.utils.ContextUtils;
import io.vov.vitamio.utils.FileUtils;
import io.vov.vitamio.utils.Log;
import java.io.File;
import java.util.HashMap;
import java.util.Iterator;
public class MediaScanner {
private static final String[] VIDEO_PROJECTION = new String[]{Video.Media._ID, Video.Media.DATA, Video.Media.DATE_MODIFIED,};
private static final int ID_VIDEO_COLUMN_INDEX = 0;
private static final int PATH_VIDEO_COLUMN_INDEX = 1;
private static final int DATE_MODIFIED_VIDEO_COLUMN_INDEX = 2;
private Context mContext;
private ContentProviderClient mProvider;
private boolean mCaseInsensitivePaths;
private HashMap<String, FileCacheEntry> mFileCache;
private MyMediaScannerClient mClient = new MyMediaScannerClient();
public MediaScanner(Context ctx) {
mContext = ctx;
native_init(mClient);
}
private static native boolean loadFFmpeg_native(String ffmpegPath);
private void initialize() {
mCaseInsensitivePaths = true;
}
private void prescan(String filePath) throws RemoteException {
mProvider = mContext.getContentResolver().acquireContentProviderClient(MediaStore.AUTHORITY);
Cursor c = null;
String where = null;
String[] selectionArgs = null;
if (mFileCache == null)
mFileCache = new HashMap<String, FileCacheEntry>();
else
mFileCache.clear();
try {
if (filePath != null) {
where = Video.Media.DATA + "=?";
selectionArgs = new String[]{filePath};
}
c = mProvider.query(Video.Media.CONTENT_URI, VIDEO_PROJECTION, where, selectionArgs, null);
if (c != null) {
try {
while (c.moveToNext()) {
long rowId = c.getLong(ID_VIDEO_COLUMN_INDEX);
String path = c.getString(PATH_VIDEO_COLUMN_INDEX);
long lastModified = c.getLong(DATE_MODIFIED_VIDEO_COLUMN_INDEX);
if (path.startsWith("/")) {
File tempFile = new File(path);
if (!TextUtils.isEmpty(filePath) && !tempFile.exists()) {
mProvider.delete(Video.Media.CONTENT_URI, where, selectionArgs);
return;
}
path = FileUtils.getCanonical(tempFile);
String key = mCaseInsensitivePaths ? path.toLowerCase() : path;
mFileCache.put(key, new FileCacheEntry(Video.Media.CONTENT_URI, rowId, path, lastModified));
}
}
} finally {
c.close();
c = null;
}
}
} finally {
if (c != null) {
c.close();
}
}
}
;
private void postscan(String[] directories) throws RemoteException {
Iterator<FileCacheEntry> iterator = mFileCache.values().iterator();
while (iterator.hasNext()) {
FileCacheEntry entry = iterator.next();
String path = entry.mPath;
if (!entry.mSeenInFileSystem) {
if (inScanDirectory(path, directories) && !new File(path).exists()) {
mProvider.delete(ContentUris.withAppendedId(entry.mTableUri, entry.mRowId), null, null);
iterator.remove();
}
}
}
mFileCache.clear();
mFileCache = null;
mProvider.release();
mProvider = null;
}
private boolean inScanDirectory(String path, String[] directories) {
for (int i = 0; i < directories.length; i++) {
if (path.startsWith(directories[i]))
return true;
}
return false;
}
public void scanDirectories(String[] directories) {
try {
long start = System.currentTimeMillis();
prescan(null);
long prescan = System.currentTimeMillis();
for (int i = 0; i < directories.length; i++) {
if (!TextUtils.isEmpty(directories[i])) {
directories[i] = ContextUtils.fixLastSlash(directories[i]);
processDirectory(directories[i], MediaFile.sFileExtensions);
}
}
long scan = System.currentTimeMillis();
postscan(directories);
long end = System.currentTimeMillis();
Log.d(" prescan time: %dms", prescan - start);
Log.d(" scan time: %dms", scan - prescan);
Log.d("postscan time: %dms", end - scan);
Log.d(" total time: %dms", end - start);
} catch (SQLException e) {
Log.e("SQLException in MediaScanner.scan()", e);
} catch (UnsupportedOperationException e) {
Log.e("UnsupportedOperationException in MediaScanner.scan()", e);
} catch (RemoteException e) {
Log.e("RemoteException in MediaScanner.scan()", e);
}
}
public Uri scanSingleFile(String path, String mimeType) {
try {
prescan(path);
File file = new File(path);
long lastModifiedSeconds = file.lastModified() / 1000;
return mClient.doScanFile(path, lastModifiedSeconds, file.length(), true);
} catch (RemoteException e) {
Log.e("RemoteException in MediaScanner.scanFile()", e);
return null;
}
}
static {
String LIB_ROOT = Vitamio.getLibraryPath();
Log.i("LIB ROOT: %s", LIB_ROOT);
System.load(LIB_ROOT + "libstlport_shared.so");
System.load(LIB_ROOT + "libvscanner.so");
loadFFmpeg_native(LIB_ROOT + "libffmpeg.so");
}
private native void processDirectory(String path, String extensions);
private native boolean processFile(String path, String mimeType);
private native final void native_init(MediaScannerClient client);
public native void release();
private native final void native_finalize();
@Override
protected void finalize() throws Throwable {
try {
native_finalize();
} finally {
super.finalize();
}
}
private static class FileCacheEntry {
Uri mTableUri;
long mRowId;
String mPath;
long mLastModified;
boolean mLastModifiedChanged;
boolean mSeenInFileSystem;
FileCacheEntry(Uri tableUri, long rowId, String path, long lastModified) {
mTableUri = tableUri;
mRowId = rowId;
mPath = path;
mLastModified = lastModified;
mSeenInFileSystem = false;
mLastModifiedChanged = false;
}
@Override
public String toString() {
return mPath;
}
}
private class MyMediaScannerClient implements MediaScannerClient {
private String mMimeType;
private int mFileType;
private String mPath;
private long mLastModified;
private long mFileSize;
private String mTitle;
private String mArtist;
private String mAlbum;
private String mLanguage;
private long mDuration;
private int mWidth;
private int mHeight;
public FileCacheEntry beginFile(String path, long lastModified, long fileSize) {
int lastSlash = path.lastIndexOf('/');
if (lastSlash >= 0 && lastSlash + 2 < path.length()) {
if (path.regionMatches(lastSlash + 1, "._", 0, 2))
return null;
if (path.regionMatches(true, path.length() - 4, ".jpg", 0, 4)) {
if (path.regionMatches(true, lastSlash + 1, "AlbumArt_{", 0, 10) || path.regionMatches(true, lastSlash + 1, "AlbumArt.", 0, 9)) {
return null;
}
int length = path.length() - lastSlash - 1;
if ((length == 17 && path.regionMatches(true, lastSlash + 1, "AlbumArtSmall", 0, 13)) || (length == 10 && path.regionMatches(true, lastSlash + 1, "Folder", 0, 6))) {
return null;
}
}
}
MediaFile.MediaFileType mediaFileType = MediaFile.getFileType(path);
if (mediaFileType != null) {
mFileType = mediaFileType.fileType;
mMimeType = mediaFileType.mimeType;
}
String key = FileUtils.getCanonical(new File(path));
if (mCaseInsensitivePaths)
key = path.toLowerCase();
FileCacheEntry entry = mFileCache.get(key);
if (entry == null) {
entry = new FileCacheEntry(null, 0, path, 0);
mFileCache.put(key, entry);
}
entry.mSeenInFileSystem = true;
long delta = lastModified - entry.mLastModified;
if (delta > 1 || delta < -1) {
entry.mLastModified = lastModified;
entry.mLastModifiedChanged = true;
}
mPath = path;
mLastModified = lastModified;
mFileSize = fileSize;
mTitle = null;
mDuration = 0;
return entry;
}
public void scanFile(String path, long lastModified, long fileSize) {
Log.i("scanFile: %s", path);
doScanFile(path, lastModified, fileSize, false);
}
public Uri doScanFile(String path, long lastModified, long fileSize, boolean scanAlways) {
Uri result = null;
try {
FileCacheEntry entry = beginFile(path, lastModified, fileSize);
if (entry != null && (entry.mLastModifiedChanged || scanAlways)) {
if (processFile(path, null)) {
result = endFile(entry);
} else {
if (mCaseInsensitivePaths)
mFileCache.remove(path.toLowerCase());
else
mFileCache.remove(path);
}
}
} catch (RemoteException e) {
Log.e("RemoteException in MediaScanner.scanFile()", e);
}
return result;
}
private int parseSubstring(String s, int start, int defaultValue) {
int length = s.length();
if (start == length)
return defaultValue;
char ch = s.charAt(start++);
if (ch < '0' || ch > '9')
return defaultValue;
int result = ch - '0';
while (start < length) {
ch = s.charAt(start++);
if (ch < '0' || ch > '9')
return result;
result = result * 10 + (ch - '0');
}
return result;
}
public void handleStringTag(String name, byte[] valueBytes, String valueEncoding) {
String value;
try {
value = new String(valueBytes, valueEncoding);
} catch (Exception e) {
Log.e("handleStringTag", e);
value = new String(valueBytes);
}
Log.i("%s : %s", name, value);
if (name.equalsIgnoreCase("title")) {
mTitle = value;
} else if (name.equalsIgnoreCase("artist")) {
mArtist = value.trim();
} else if (name.equalsIgnoreCase("albumartist")) {
if (TextUtils.isEmpty(mArtist))
mArtist = value.trim();
} else if (name.equalsIgnoreCase("album")) {
mAlbum = value.trim();
} else if (name.equalsIgnoreCase("language")) {
mLanguage = value.trim();
} else if (name.equalsIgnoreCase("duration")) {
mDuration = parseSubstring(value, 0, 0);
} else if (name.equalsIgnoreCase("width")) {
mWidth = parseSubstring(value, 0, 0);
} else if (name.equalsIgnoreCase("height")) {
mHeight = parseSubstring(value, 0, 0);
}
}
public void setMimeType(String mimeType) {
Log.i("setMimeType: %s", mimeType);
mMimeType = mimeType;
mFileType = MediaFile.getFileTypeForMimeType(mimeType);
}
private ContentValues toValues() {
ContentValues map = new ContentValues();
map.put(MediaStore.MediaColumns.DATA, mPath);
map.put(MediaStore.MediaColumns.DATE_MODIFIED, mLastModified);
map.put(MediaStore.MediaColumns.SIZE, mFileSize);
map.put(MediaStore.MediaColumns.MIME_TYPE, mMimeType);
map.put(MediaStore.MediaColumns.TITLE, mTitle);
if (MediaFile.isVideoFileType(mFileType)) {
map.put(Video.Media.DURATION, mDuration);
map.put(Video.Media.LANGUAGE, mLanguage);
map.put(Video.Media.ALBUM, mAlbum);
map.put(Video.Media.ARTIST, mArtist);
map.put(Video.Media.WIDTH, mWidth);
map.put(Video.Media.HEIGHT, mHeight);
}
return map;
}
private Uri endFile(FileCacheEntry entry) throws RemoteException {
Uri tableUri;
boolean isVideo = MediaFile.isVideoFileType(mFileType) && mWidth > 0 && mHeight > 0;
if (isVideo) {
tableUri = Video.Media.CONTENT_URI;
} else {
return null;
}
entry.mTableUri = tableUri;
ContentValues values = toValues();
String title = values.getAsString(MediaStore.MediaColumns.TITLE);
if (TextUtils.isEmpty(title)) {
title = values.getAsString(MediaStore.MediaColumns.DATA);
int lastSlash = title.lastIndexOf('/');
if (lastSlash >= 0) {
lastSlash++;
if (lastSlash < title.length())
title = title.substring(lastSlash);
}
int lastDot = title.lastIndexOf('.');
if (lastDot > 0)
title = title.substring(0, lastDot);
values.put(MediaStore.MediaColumns.TITLE, title);
}
long rowId = entry.mRowId;
Uri result = null;
if (rowId == 0) {
result = mProvider.insert(tableUri, values);
if (result != null) {
rowId = ContentUris.parseId(result);
entry.mRowId = rowId;
}
} else {
result = ContentUris.withAppendedId(tableUri, rowId);
mProvider.update(result, values, null, null);
}
return result;
}
public void addNoMediaFolder(String path) {
ContentValues values = new ContentValues();
values.put(MediaStore.MediaColumns.DATA, "");
String[] pathSpec = new String[]{path + '%'};
try {
mProvider.update(Video.Media.CONTENT_URI, values, MediaStore.MediaColumns.DATA + " LIKE ?", pathSpec);
} catch (RemoteException e) {
throw new RuntimeException();
}
}
}
}