Initial community commit

Src/replicant/audio/ifc_audio_decoder_pull.h

@@ -0,0 +1,34 @@
+#pragma once
+#include "foundation/dispatch.h"
+#include "nx/nxuri.h"
+#include "metadata/ifc_metadata.h"
+
+class ifc_audio_decoder_pull : public Wasabi2::Dispatchable
+{
+protected:
+	ifc_audio_decoder_pull() : Dispatchable(DISPATCHABLE_VERSION) {}
+	~ifc_audio_decoder_pull() {}
+public:
+    
+	/* if possible, returns an upper bound on the number of frames used internally.  pull decoders are most optimal if you use this to malloc your buffer */
+	int GetFrameSize(size_t *frame_size) { return AudioDecoderPull_GetFrameSize(frame_size); }
+    int GetMetadata(ifc_metadata **metadata) { return AudioDecoderPull_GetMetadata(metadata); }
+	 
+	 /* returns
+	 * NErr_EndOfFile when decode is done (frames_written will be valid, but probably 0)
+	 * NErr_Success on successful decode, but not end-of-file (frames_written will be valid)
+	 * anything else indicates a decode error */
+    int Decode(void *buffer, size_t buffer_frames, size_t *frames_written) { return AudioDecoderPull_Decode(buffer, buffer_frames, frames_written); }
+    /* You need to call Close() when you are done (even if you Release) because some implementations might have ifc_metadata being the same object */
+    void Close() { AudioDecoderPull_Close(); }
+
+	enum
+	{
+		DISPATCHABLE_VERSION=0,
+	};
+private:
+	virtual int WASABICALL AudioDecoderPull_GetFrameSize(size_t *frame_size)=0;
+    virtual int WASABICALL AudioDecoderPull_GetMetadata(ifc_metadata **metadata)=0;
+    virtual int WASABICALL AudioDecoderPull_Decode(void *buffer, size_t buffer_frames, size_t *frames_written)=0;
+    virtual void WASABICALL AudioDecoderPull_Close()=0;
+};