DNG: Update TiffWriter to handle thumbnails and SubIfds.

- Fix SubIfd handling.
- Add StripSources, convenience functions for writing image strips.
- Update Input classes to use with JNI.
- Add skip method.
- Add tag definitions for GPS tags.
- Add name string to tag definitions.

Bug: 15112503

Change-Id: I9535b21261027f6c06a041c1621de8f865a0ad32

1 files changed, 53 insertions, 0 deletions

diff --git a/media/img_utils/include/img_utils/StripSource.h b/media/img_utils/include/img_utils/StripSource.h
new file mode 100644
index 0000000..b5c6b60
--- /dev/null
+++ b/media/img_utils/include/img_utils/StripSource.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2014 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#ifndef IMG_UTILS_STRIP_SOURCE_H
+#define IMG_UTILS_STRIP_SOURCE_H
+
+#include <img_utils/Output.h>
+
+#include <cutils/compiler.h>
+#include <utils/Errors.h>
+
+#include <stdint.h>
+
+namespace android {
+namespace img_utils {
+
+/**
+ * This class acts as a data source for strips set in a TiffIfd.
+ */
+class ANDROID_API StripSource {
+    public:
+        virtual ~StripSource();
+
+        /**
+         * Write count bytes to the stream.
+         *
+         * Returns OK on success, or a negative error code.
+         */
+        virtual status_t writeToStream(Output& stream, uint32_t count) = 0;
+
+        /**
+         * Return the source IFD.
+         */
+        virtual uint32_t getIfd() const = 0;
+};
+
+} /*namespace img_utils*/
+} /*namespace android*/
+
+#endif /*IMG_UTILS_STRIP_SOURCE_H*/