diff -r 000000000000 -r 951a5db380a0 videoeditorengine/audioeditorengine/resampler/inc/resampler_rate_conversion_input_driven_int16.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/videoeditorengine/audioeditorengine/resampler/inc/resampler_rate_conversion_input_driven_int16.h	Fri Jan 29 14:08:33 2010 +0200
@@ -0,0 +1,187 @@
+#ifndef __RESAMPLER_RATE_CONVERSION_INPUT_DRIVEN_INT16_H__
+#define __RESAMPLER_RATE_CONVERSION_INPUT_DRIVEN_INT16_H__
+/*
+* Copyright (c) 2010 Ixonos Plc.
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - Initial contribution
+*
+* Contributors:
+* Ixonos Plc
+*
+* Description:
+*
+*/
+
+
+/** @ingroup rate_conversion
+
+Base class for input-driven sampling rate conversion.
+
+*/
+
+#include "resampler_data_types.h"
+#include "resampler_rate_conversion_quality.h"
+
+class RESAMPLER_RateConversionInputDrivenInt16
+{
+
+public:
+    
+    /** @name Construction & Destruction */
+    
+    //@{
+
+    /** This method checks if the desired conversion is available.
+
+    @param[in] inRate       Input sampling rate
+    @param[in] outRate      Output sampling rate
+    @param[in] channelCount Number of audio channels
+    */
+    static bool RateSupported(float inRate, 
+                              float outRate, 
+                              int channelCount);
+
+    /** This method creates a sampling rate converter for input-driven
+    operation.
+
+    @param[in] inRate       Input sampling rate
+    @param[in] outRate      Output sampling rate
+    @param[in] channelCount Number of audio channels
+    */
+    static RESAMPLER_RateConversionInputDrivenInt16 * New(float inRate, 
+                                                    float outRate, 
+                                                    int channelCount);
+    
+    /** Constructor
+     */
+
+    RESAMPLER_RateConversionInputDrivenInt16() { ; }
+
+    /** Destructor
+     */
+    
+    virtual ~RESAMPLER_RateConversionInputDrivenInt16() { ; }
+    
+    //@}
+    
+    
+    /** @name Object lifetime methods */
+    
+    //@{
+    
+    /** Initializes the converter.
+    
+    This method initializes the sampling rate converter for input-driven
+    operation. Calling this method twice for the same converter instance
+    is considered a programming error, and behaviour in that case is 
+    undefined.
+
+    @return true if successful false otherwise
+    */
+    
+    virtual bool InitInputDriven() = 0;
+    
+    //@}
+
+    /** @name Operation */
+
+    //@{
+
+    /** Set the quality mode for the subsequent operations */
+
+    virtual bool SetQualityInputDriven(int mode);
+
+    /** Enable one of the channels.
+    
+    This method is used to (re-)enable a rate conversion channel after it's
+    been disabled. (All channels start in the enabled mode.) This is used to
+    tell the algorithm that the channel must be properly processed, if the
+    algorithm wants to take advantage of the optimization possibilities 
+    provided by the DisableInputDriven() method.
+
+    @note The channel index MUST be valid, i.e., it has to be smaller than
+          @c numChannels given at initialization time.
+
+    @param[in] channel  The index of the channel to be enabled.
+    */
+
+    virtual void EnableChannelInputDriven(int channel);
+
+    /** Disable one of the channels.
+    
+    This method can be used to tell the algorithm that the output from a
+    specific channel will not be used in subsequent operations, and the 
+    implementation may choose to optimize and leave the disabled channel
+    unprocessed. However, the caller must always provide valid pointers for
+    the actual processing methods for the case where it's difficult to 
+    actually disable memory access for the specific channel in an 
+    implementation.
+
+    @note The channel index MUST be valid, i.e., it has to be smaller than
+          @c numChannels given at initialization time.
+
+    @param[in] channel  The index of the channel to be enabled.
+    */
+
+    virtual void DisableChannelInputDriven(int channel);
+
+    /** Query the scratch memory need of the converter.
+    
+    This method queries the amount of scratch memory the converter needs to be 
+    able to handle in a single call to the processing functions.
+
+    @param[in] maxInputBlockSize  Maximum input blocksize
+    @return memory need in bytes
+    */
+
+    virtual size_t ScratchMemoryNeedInputDriven(int maxInputBlockSize) const = 0;
+
+    /** Set scratch buffer for the converter
+
+    This method sets scratch buffer needed by the converter. The caller of this
+    function is responsible of allocating enough memory.
+
+    @param[in] *buffer pointer to the allocated buffer
+    */
+
+    virtual void SetScratchBufferInputDriven(char *buffer) = 0;
+
+    /** Get the maximum number of output samples for a given input sample count
+    
+    This method returns the maximum number of output samples the converter
+    can ever produce from a given number of input samples.
+      
+    @param[in] inSamples  Number of input samples
+    @return Maximum number of output samples
+    */
+
+    virtual int MaxOutputSampleCount(int inSamples) const = 0;
+
+    /** Run the sampling rate conversion for a block of samples
+    
+    This method runs the actual sampling rate conversion. The pointer arrays
+    have to contain valid pointers for numChannels channel data buffers. The 
+    output buffers must have space for MaxOutputSampleCount(inSamples) audio 
+    samples.
+      
+    @param[out] outputBuffers  Pointer to output buffer array
+    @param[in]  inputBuffers   Pointer to input buffer array
+    @param[in]  inSamples      The number of input samples to process
+    @return Number of output samples
+    */
+
+    virtual int ProcessFromInput(int16 *outputBuffers[], 
+                                 int16 *inputBuffers[], 
+                                 int inSamples) = 0;
+
+    //@}
+
+};
+
+#endif  // __RESAMPLER_RATE_CONVERSION_INPUT_DRIVEN_INT16_H__