MediaScanner: check build fingerprint for system sound scan (33024910) · Commits · e / os / android_frameworks_base

media/java/android/media/MediaScanner.java

+36 −15

Original line number	Diff line number	Diff line
		@@ -21,12 +21,14 @@ import android.content.ContentResolver;
		import android.content.ContentUris;
		import android.content.ContentValues;
		import android.content.Context;
		import android.content.SharedPreferences;
		import android.database.Cursor;
		import android.database.SQLException;
		import android.drm.DrmManagerClient;
		import android.graphics.BitmapFactory;
		import android.mtp.MtpConstants;
		import android.net.Uri;
		import android.os.Build;
		import android.os.Environment;
		import android.os.RemoteException;
		import android.os.SystemProperties;
		@@ -153,6 +155,11 @@ public class MediaScanner implements AutoCloseable {
		private static final String MUSIC_DIR = "/music/";
		private static final String PODCAST_DIR = "/podcasts/";

		public static final String SCANNED_BUILD_PREFS_NAME = "MediaScanBuild";
		public static final String LAST_INTERNAL_SCAN_FINGERPRINT = "lastScanFingerprint";
		private static final String SYSTEM_SOUNDS_DIR = "/system/media/audio";
		private static String sLastInternalScanFingerprint;

		private static final String[] ID3_GENRES = {
		// ID3v1 Genres
		"Blues",
		@@ -402,6 +409,13 @@ public class MediaScanner implements AutoCloseable {
		mMediaProvider = mContext.getContentResolver()
		.acquireContentProviderClient(MediaStore.AUTHORITY);

		if (sLastInternalScanFingerprint == null) {
		final SharedPreferences scanSettings =
		mContext.getSharedPreferences(SCANNED_BUILD_PREFS_NAME, Context.MODE_PRIVATE);
		sLastInternalScanFingerprint =
		scanSettings.getString(LAST_INTERNAL_SCAN_FINGERPRINT, new String());
		}

		mAudioUri = Audio.Media.getContentUri(volumeName);
		mVideoUri = Video.Media.getContentUri(volumeName);
		mImagesUri = Images.Media.getContentUri(volumeName);
		@@ -585,8 +599,8 @@ public class MediaScanner implements AutoCloseable {
		entry.mRowId = 0;
		}

		if (entry.mPath != null &&
		((!mDefaultNotificationSet &&
		if (entry.mPath != null) {
		if (((!mDefaultNotificationSet &&
		doesPathHaveFilename(entry.mPath, mDefaultNotificationFilename))
		\|\| (!mDefaultRingtoneSet &&
		doesPathHaveFilename(entry.mPath, mDefaultRingtoneFilename))
		@@ -595,6 +609,14 @@ public class MediaScanner implements AutoCloseable {
		Log.w(TAG, "forcing rescan of " + entry.mPath +
		"since ringtone setting didn't finish");
		scanAlways = true;
		} else if (isSystemSoundWithMetadata(entry.mPath)
		&& !Build.FINGERPRINT.equals(sLastInternalScanFingerprint)) {
		// file is located on the system partition where the date cannot be trusted:
		// rescan if the build fingerprint has changed since the last scan.
		Log.i(TAG, "forcing rescan of " + entry.mPath
		+ " since build fingerprint changed");
		scanAlways = true;
		}
		}

		// rescan for metadata if file was modified since last scan
		@@ -1128,6 +1150,15 @@ public class MediaScanner implements AutoCloseable {

		}; // end of anonymous MediaScannerClient instance

		private static boolean isSystemSoundWithMetadata(String path) {
		if (path.startsWith(SYSTEM_SOUNDS_DIR + ALARMS_DIR)
		\|\| path.startsWith(SYSTEM_SOUNDS_DIR + RINGTONES_DIR)
		\|\| path.startsWith(SYSTEM_SOUNDS_DIR + NOTIFICATIONS_DIR)) {
		return true;
		}
		return false;
		}

		private String settingSetIndicatorName(String base) {
		return base + "_set";
		}
		@@ -1252,16 +1283,6 @@ public class MediaScanner implements AutoCloseable {
		}
		}

		private boolean inScanDirectory(String path, String[] directories) {
		for (int i = 0; i < directories.length; i++) {
		String directory = directories[i];
		if (path.startsWith(directory)) {
		return true;
		}
		}
		return false;
		}

		private void pruneDeadThumbnailFiles() {
		HashSet<String> existingFiles = new HashSet<String>();
		String directory = "/sdcard/DCIM/.thumbnails";