Merge "ExifInterface: Use FileDescriptors whenever we can." (7ca9c3a6) · Commits · e / os / android_frameworks_base

media/java/android/media/ExifInterface.java

+56 −49

Original line number	Diff line number	Diff line
		@@ -1566,7 +1566,7 @@ public class ExifInterface {
		FileInputStream in = null;
		try {
		in = new FileInputStream(fileDescriptor);
		loadAttributes(in);
		loadAttributes(in, fileDescriptor);
		} finally {
		closeQuietly(in);
		if (isFdDuped) {
		@@ -1637,7 +1637,7 @@ public class ExifInterface {
		mSeekableFileDescriptor = null;
		}
		}
		loadAttributes(inputStream);
		loadAttributes(inputStream, null);
		}

		/**
		@@ -1963,7 +1963,7 @@ public class ExifInterface {
		* This function decides which parser to read the image data according to the given input stream
		* type and the content of the input stream.
		*/
		private void loadAttributes(@NonNull InputStream in) {
		private void loadAttributes(@NonNull InputStream in, @Nullable FileDescriptor fd) {
		if (in == null) {
		throw new NullPointerException("inputstream shouldn't be null");
		}
		@@ -1993,7 +1993,7 @@ public class ExifInterface {
		break;
		}
		case IMAGE_TYPE_HEIF: {
		getHeifAttributes(inputStream);
		getHeifAttributes(inputStream, fd);
		break;
		}
		case IMAGE_TYPE_ORF: {
		@@ -2580,7 +2580,7 @@ public class ExifInterface {
		} else if (isSeekableFD(in.getFD())) {
		mSeekableFileDescriptor = in.getFD();
		}
		loadAttributes(in);
		loadAttributes(in, null);
		} finally {
		closeQuietly(in);
		if (modernFd != null) {
		@@ -3068,9 +3068,13 @@ public class ExifInterface {
		}
		}

		private void getHeifAttributes(ByteOrderedDataInputStream in) throws IOException {
		private void getHeifAttributes(ByteOrderedDataInputStream in, @Nullable FileDescriptor fd)
		throws IOException {
		MediaMetadataRetriever retriever = new MediaMetadataRetriever();
		try {
		if (fd != null) {
		retriever.setDataSource(fd);
		} else {
		retriever.setDataSource(new MediaDataSource() {
		long mPosition;

		@@ -3111,7 +3115,9 @@ public class ExifInterface {
		mPosition += bytesRead;
		return bytesRead;
		}
		} catch (IOException e) {}
		} catch (IOException e) {
		// absorb the exception and fall through to the 'failed read' path below
		}
		mPosition = -1; // need to seek on next read
		return -1;
		}
		@@ -3121,6 +3127,7 @@ public class ExifInterface {
		return -1;
		}
		});
		}

		String exifOffsetStr = retriever.extractMetadata(
		MediaMetadataRetriever.METADATA_KEY_EXIF_OFFSET);