FM Radio: Add support for FM Radio in Android

Creating interface and framework for using FM Radio
RX and TX from different vendors.

Change-Id: I1a71aed01bfffdddfabf1cdfbfa3707cb1ed016b
Signed-off-by: Benn Porscke <benn.porscke@stericsson.com>

1 files changed, 64 insertions, 0 deletions

diff --git a/include/media/stagefright/FMRadioSource.h b/include/media/stagefright/FMRadioSource.h
new file mode 100644
index 0000000..32db156
--- /dev/null
+++ b/include/media/stagefright/FMRadioSource.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2012
+ * 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.
+ *
+ * Author: Stefan Ekenberg (stefan.ekenberg@stericsson.com) for ST-Ericsson
+ */
+
+#ifndef FMRADIO_SOURCE_H_
+
+#define FMRADIO_SOURCE_H_
+
+#include <media/AudioRecord.h>
+#include <media/stagefright/DataSource.h>
+#include <media/stagefright/foundation/ABase.h>
+#include <system/audio.h>
+
+namespace android {
+
+class FMRadioSource : public DataSource {
+public:
+    FMRadioSource();
+
+    virtual status_t initCheck() const;
+    virtual ssize_t readAt(off64_t offset, void *data, size_t size);
+    virtual status_t getSize(off64_t *size);
+
+protected:
+    virtual ~FMRadioSource();
+
+private:
+    struct Buffer {
+        size_t  frameCount;
+        size_t  size;
+        int8_t* data;
+    };
+
+    status_t openRecord(int frameCount, audio_io_handle_t input);
+    status_t obtainBuffer(Buffer* audioBuffer);
+
+    status_t mInitCheck;
+    bool mStarted;
+    int mSessionId;
+    sp<IAudioRecord> mAudioRecord;
+    sp<IMemory> mCblkMemory;
+    audio_track_cblk_t* mCblk;
+
+    DISALLOW_EVIL_CONSTRUCTORS(FMRadioSource);
+};
+
+}  // namespace android
+
+#endif  // FMRADIO_SOURCE_H_