Some work to make audio encoding work.

1 files changed, 39 insertions, 0 deletions

diff --git a/cmds/stagefright/SineSource.h b/cmds/stagefright/SineSource.h
new file mode 100644
index 0000000..76ab669
--- /dev/null
+++ b/cmds/stagefright/SineSource.h
@@ -0,0 +1,39 @@
+#ifndef SINE_SOURCE_H_
+
+#define SINE_SOURCE_H_
+
+#include <media/stagefright/MediaSource.h>
+
+namespace android {
+
+struct MediaBufferGroup;
+
+struct SineSource : public MediaSource {
+    SineSource(int32_t sampleRate, int32_t numChannels);
+
+    virtual status_t start(MetaData *params);
+    virtual status_t stop();
+
+    virtual sp<MetaData> getFormat();
+
+    virtual status_t read(
+            MediaBuffer **out, const ReadOptions *options = NULL);
+
+protected:
+    virtual ~SineSource();
+
+private:
+    enum { kBufferSize = 8192 };
+    static const double kFrequency = 500.0;
+
+    bool mStarted;
+    int32_t mSampleRate;
+    int32_t mNumChannels;
+    size_t mPhase;
+
+    MediaBufferGroup *mGroup;
+};
+
+}  // namespace android
+
+#endif // SINE_SOURCE_H_