videoeditorengine/audioeditorengine/resampler/inc/resampler_rate_conversion_input_driven_int16.h
--- a/videoeditorengine/audioeditorengine/resampler/inc/resampler_rate_conversion_input_driven_int16.h Fri Jan 29 14:08:33 2010 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,187 +0,0 @@
-#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__