Move libnbaio out of AudioFlinger
libnbaio is now a separate shared library from AudioFlinger, rather
than a static library used only by AudioFlinger.
AudioBufferProvider interface is now also independent of AudioFlinger,
moved to include/media/
Change-Id: I9bb62ffbc38d42a38b0af76e66da5e9ab1e0e21b
diff --git a/include/media/nbaio/AudioBufferProviderSource.h b/include/media/nbaio/AudioBufferProviderSource.h
new file mode 100644
index 0000000..2c4aaff
--- /dev/null
+++ b/include/media/nbaio/AudioBufferProviderSource.h
@@ -0,0 +1,57 @@
+/*
+ * 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.
+ */
+
+// Implementation of NBAIO_Source that wraps an AudioBufferProvider
+
+#ifndef ANDROID_AUDIO_BUFFER_PROVIDER_SOURCE_H
+#define ANDROID_AUDIO_BUFFER_PROVIDER_SOURCE_H
+
+#include "NBAIO.h"
+#include <media/AudioBufferProvider.h>
+
+namespace android {
+
+class AudioBufferProviderSource : public NBAIO_Source {
+
+public:
+ AudioBufferProviderSource(AudioBufferProvider *provider, NBAIO_Format format);
+ virtual ~AudioBufferProviderSource();
+
+ // NBAIO_Port interface
+
+ //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+ // NBAIO_Format counterOffers[], size_t& numCounterOffers);
+ //virtual NBAIO_Format format();
+
+ // 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, int64_t readPTS);
+ virtual ssize_t readVia(readVia_t via, size_t total, void *user,
+ int64_t readPTS, size_t block);
+
+private:
+ AudioBufferProvider * const mProvider;
+ AudioBufferProvider::Buffer mBuffer; // current buffer
+ size_t mConsumed; // number of frames consumed so far from current buffer
+};
+
+} // namespace android
+
+#endif // ANDROID_AUDIO_BUFFER_PROVIDER_SOURCE_H