Use callbacks for Midi I/O
Instead of having the Sonivox engine directly open the file and
use stdio to read from it, use caller-provided callbacks.
Change-Id: I4d775c8458c48c591a15794c4517e006dcf034e1
diff --git a/include/media/MidiIoWrapper.h b/include/media/MidiIoWrapper.h
new file mode 100644
index 0000000..caf1d75
--- /dev/null
+++ b/include/media/MidiIoWrapper.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 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 MIDI_IO_WRAPPER_H_
+#define MIDI_IO_WRAPPER_H_
+
+#include <libsonivox/eas_types.h>
+
+namespace android {
+
+class MidiIoWrapper : public RefBase {
+public:
+ MidiIoWrapper(const char *path);
+ MidiIoWrapper(int fd, off64_t offset, int64_t size);
+
+ ~MidiIoWrapper();
+
+ int readAt(void *buffer, int offset, int size);
+ int size();
+
+ EAS_FILE_LOCATOR getLocator();
+
+private:
+ int mFd;
+ off64_t mBase;
+ int64_t mLength;
+ EAS_FILE mEasFile;
+};
+
+
+} // namespace android
+
+#endif // MIDI_IO_WRAPPER_H_