move to new cspot

components/spotify/cspot/bell/external/alac/codec/ALACDecoder.h

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+/*
+ * Copyright (c) 2011 Apple Inc. All rights reserved.
+ *
+ * @APPLE_APACHE_LICENSE_HEADER_START@
+ * 
+ * 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.
+ * 
+ * @APPLE_APACHE_LICENSE_HEADER_END@
+ */
+
+/*
+	File:		ALACDecoder.h
+*/
+
+#ifndef _ALACDECODER_H
+#define _ALACDECODER_H
+
+#if PRAGMA_ONCE
+#pragma once
+#endif
+
+#include <stdint.h>
+
+#include "ALACAudioTypes.h"
+
+struct BitBuffer;
+
+class ALACDecoder
+{
+	public:
+		ALACDecoder();
+		~ALACDecoder();
+
+		int32_t	Init( void * inMagicCookie, uint32_t inMagicCookieSize );
+		int32_t	Decode( struct BitBuffer * bits, uint8_t * sampleBuffer, uint32_t numSamples, uint32_t numChannels, uint32_t * outNumSamples );
+
+	public:
+		// decoding parameters (public for use in the analyzer)
+		ALACSpecificConfig		mConfig;
+
+	protected:
+		int32_t	FillElement( struct BitBuffer * bits );
+		int32_t	DataStreamElement( struct BitBuffer * bits );
+
+		uint16_t					mActiveElements;
+
+		// decoding buffers
+		int32_t *				mMixBufferU;
+		int32_t *				mMixBufferV;
+		int32_t *				mPredictor;
+		uint16_t *				mShiftBuffer;	// note: this points to mPredictor's memory but different
+												//		 variable for clarity and type difference
+};
+
+#endif	/* _ALACDECODER_H */