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diff --git a/include/media/nbaio/LibsndfileSource.h b/include/media/nbaio/LibsndfileSource.h
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+/*
+ * Copyright (C) 2012 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 ANDROID_AUDIO_LIBSNDFILE_SOURCE_H
+#define ANDROID_AUDIO_LIBSNDFILE_SOURCE_H
+
+#include "NBAIO.h"
+#include "sndfile.h"
+
+// Implementation of NBAIO_Source that wraps a libsndfile opened in SFM_READ mode
+
+namespace android {
+
+class LibsndfileSource : public NBAIO_Source {
+
+public:
+ // If 'loop' is true and it permits seeking, then we'll act as an infinite source
+ LibsndfileSource(SNDFILE *sndfile, const SF_INFO &sfinfo, bool loop = false);
+ virtual ~LibsndfileSource();
+
+ // NBAIO_Port interface
+
+ //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+ // NBAIO_Format counterOffers[], size_t& numCounterOffers);
+ //virtual NBAIO_Format format() const;
+
+ // NBAIO_Source interface
+
+ //virtual size_t framesRead() const;
+ //virtual size_t framesOverrun();
+ //virtual size_t overruns();
+ virtual ssize_t availableToRead();
+ virtual ssize_t read(void *buffer, size_t count);
+ //virtual ssize_t readVia(readVia_t via, size_t total, void *user, size_t block);
+
+private:
+ SNDFILE * mSndfile;
+ sf_count_t mEstimatedFramesUntilEOF;
+ bool mLooping;
+ bool mReadAnyFramesThisLoopCycle;
+};
+
+} // namespace android
+
+#endif // ANDROID_AUDIO_LIBSNDFILE_SOURCE_H