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Diffstat (limited to 'src/thirdparty/SoundTouch/source/SoundTouch.cpp')
| -rw-r--r-- | src/thirdparty/SoundTouch/source/SoundTouch.cpp | 504 |
1 files changed, 0 insertions, 504 deletions
diff --git a/src/thirdparty/SoundTouch/source/SoundTouch.cpp b/src/thirdparty/SoundTouch/source/SoundTouch.cpp deleted file mode 100644 index afa3774cb..000000000 --- a/src/thirdparty/SoundTouch/source/SoundTouch.cpp +++ /dev/null @@ -1,504 +0,0 @@ -//////////////////////////////////////////////////////////////////////////////
-///
-/// SoundTouch - main class for tempo/pitch/rate adjusting routines.
-///
-/// Notes:
-/// - Initialize the SoundTouch object instance by setting up the sound stream
-/// parameters with functions 'setSampleRate' and 'setChannels', then set
-/// desired tempo/pitch/rate settings with the corresponding functions.
-///
-/// - The SoundTouch class behaves like a first-in-first-out pipeline: The
-/// samples that are to be processed are fed into one of the pipe by calling
-/// function 'putSamples', while the ready processed samples can be read
-/// from the other end of the pipeline with function 'receiveSamples'.
-///
-/// - The SoundTouch processing classes require certain sized 'batches' of
-/// samples in order to process the sound. For this reason the classes buffer
-/// incoming samples until there are enough of samples available for
-/// processing, then they carry out the processing step and consequently
-/// make the processed samples available for outputting.
-///
-/// - For the above reason, the processing routines introduce a certain
-/// 'latency' between the input and output, so that the samples input to
-/// SoundTouch may not be immediately available in the output, and neither
-/// the amount of outputtable samples may not immediately be in direct
-/// relationship with the amount of previously input samples.
-///
-/// - The tempo/pitch/rate control parameters can be altered during processing.
-/// Please notice though that they aren't currently protected by semaphores,
-/// so in multi-thread application external semaphore protection may be
-/// required.
-///
-/// - This class utilizes classes 'TDStretch' for tempo change (without modifying
-/// pitch) and 'RateTransposer' for changing the playback rate (that is, both
-/// tempo and pitch in the same ratio) of the sound. The third available control
-/// 'pitch' (change pitch but maintain tempo) is produced by a combination of
-/// combining the two other controls.
-///
-/// Author : Copyright (c) Olli Parviainen
-/// Author e-mail : oparviai 'at' iki.fi
-/// SoundTouch WWW: http://www.surina.net/soundtouch
-///
-////////////////////////////////////////////////////////////////////////////////
-//
-// Last changed : $Date: 2014-10-08 15:26:57 +0000 (Wed, 08 Oct 2014) $
-// File revision : $Revision: 4 $
-//
-// $Id: SoundTouch.cpp 201 2014-10-08 15:26:57Z oparviai $
-//
-////////////////////////////////////////////////////////////////////////////////
-//
-// License :
-//
-// SoundTouch audio processing library
-// Copyright (c) Olli Parviainen
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Lesser General Public
-// License as published by the Free Software Foundation; either
-// version 2.1 of the License, or (at your option) any later version.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-//
-////////////////////////////////////////////////////////////////////////////////
-
-#include <assert.h>
-#include <stdlib.h>
-#include <memory.h>
-#include <math.h>
-#include <stdio.h>
-
-#include "SoundTouch.h"
-#include "TDStretch.h"
-#include "RateTransposer.h"
-#include "cpu_detect.h"
-
-using namespace soundtouch;
-
-/// test if two floating point numbers are equal
-#define TEST_FLOAT_EQUAL(a, b) (fabs(a - b) < 1e-10)
-
-
-/// Print library version string for autoconf
-extern "C" void soundtouch_ac_test()
-{
- printf("SoundTouch Version: %s\n",SOUNDTOUCH_VERSION);
-}
-
-
-SoundTouch::SoundTouch()
-{
- // Initialize rate transposer and tempo changer instances
-
- pRateTransposer = new RateTransposer();
- pTDStretch = TDStretch::newInstance();
-
- setOutPipe(pTDStretch);
-
- rate = tempo = 0;
-
- virtualPitch =
- virtualRate =
- virtualTempo = 1.0;
-
- calcEffectiveRateAndTempo();
-
- channels = 0;
- bSrateSet = false;
-}
-
-
-
-SoundTouch::~SoundTouch()
-{
- delete pRateTransposer;
- delete pTDStretch;
-}
-
-
-
-/// Get SoundTouch library version string
-const char *SoundTouch::getVersionString()
-{
- static const char *_version = SOUNDTOUCH_VERSION;
-
- return _version;
-}
-
-
-/// Get SoundTouch library version Id
-uint SoundTouch::getVersionId()
-{
- return SOUNDTOUCH_VERSION_ID;
-}
-
-
-// Sets the number of channels, 1 = mono, 2 = stereo
-void SoundTouch::setChannels(uint numChannels)
-{
- /*if (numChannels != 1 && numChannels != 2)
- {
- //ST_THROW_RT_ERROR("Illegal number of channels");
- return;
- }*/
- channels = numChannels;
- pRateTransposer->setChannels((int)numChannels);
- pTDStretch->setChannels((int)numChannels);
-}
-
-
-
-// Sets new rate control value. Normal rate = 1.0, smaller values
-// represent slower rate, larger faster rates.
-void SoundTouch::setRate(float newRate)
-{
- virtualRate = newRate;
- calcEffectiveRateAndTempo();
-}
-
-
-
-// Sets new rate control value as a difference in percents compared
-// to the original rate (-50 .. +100 %)
-void SoundTouch::setRateChange(float newRate)
-{
- virtualRate = 1.0f + 0.01f * newRate;
- calcEffectiveRateAndTempo();
-}
-
-
-
-// Sets new tempo control value. Normal tempo = 1.0, smaller values
-// represent slower tempo, larger faster tempo.
-void SoundTouch::setTempo(float newTempo)
-{
- virtualTempo = newTempo;
- calcEffectiveRateAndTempo();
-}
-
-
-
-// Sets new tempo control value as a difference in percents compared
-// to the original tempo (-50 .. +100 %)
-void SoundTouch::setTempoChange(float newTempo)
-{
- virtualTempo = 1.0f + 0.01f * newTempo;
- calcEffectiveRateAndTempo();
-}
-
-
-
-// Sets new pitch control value. Original pitch = 1.0, smaller values
-// represent lower pitches, larger values higher pitch.
-void SoundTouch::setPitch(float newPitch)
-{
- virtualPitch = newPitch;
- calcEffectiveRateAndTempo();
-}
-
-
-
-// Sets pitch change in octaves compared to the original pitch
-// (-1.00 .. +1.00)
-void SoundTouch::setPitchOctaves(float newPitch)
-{
- virtualPitch = (float)exp(0.69314718056f * newPitch);
- calcEffectiveRateAndTempo();
-}
-
-
-
-// Sets pitch change in semi-tones compared to the original pitch
-// (-12 .. +12)
-void SoundTouch::setPitchSemiTones(int newPitch)
-{
- setPitchOctaves((float)newPitch / 12.0f);
-}
-
-
-
-void SoundTouch::setPitchSemiTones(float newPitch)
-{
- setPitchOctaves(newPitch / 12.0f);
-}
-
-
-// Calculates 'effective' rate and tempo values from the
-// nominal control values.
-void SoundTouch::calcEffectiveRateAndTempo()
-{
- float oldTempo = tempo;
- float oldRate = rate;
-
- tempo = virtualTempo / virtualPitch;
- rate = virtualPitch * virtualRate;
-
- if (!TEST_FLOAT_EQUAL(rate,oldRate)) pRateTransposer->setRate(rate);
- if (!TEST_FLOAT_EQUAL(tempo, oldTempo)) pTDStretch->setTempo(tempo);
-
-#ifndef SOUNDTOUCH_PREVENT_CLICK_AT_RATE_CROSSOVER
- if (rate <= 1.0f)
- {
- if (output != pTDStretch)
- {
- FIFOSamplePipe *tempoOut;
-
- assert(output == pRateTransposer);
- // move samples in the current output buffer to the output of pTDStretch
- tempoOut = pTDStretch->getOutput();
- tempoOut->moveSamples(*output);
- // move samples in pitch transposer's store buffer to tempo changer's input
- // deprecated : pTDStretch->moveSamples(*pRateTransposer->getStore());
-
- output = pTDStretch;
- }
- }
- else
-#endif
- {
- if (output != pRateTransposer)
- {
- FIFOSamplePipe *transOut;
-
- assert(output == pTDStretch);
- // move samples in the current output buffer to the output of pRateTransposer
- transOut = pRateTransposer->getOutput();
- transOut->moveSamples(*output);
- // move samples in tempo changer's input to pitch transposer's input
- pRateTransposer->moveSamples(*pTDStretch->getInput());
-
- output = pRateTransposer;
- }
- }
-}
-
-
-// Sets sample rate.
-void SoundTouch::setSampleRate(uint srate)
-{
- bSrateSet = true;
- // set sample rate, leave other tempo changer parameters as they are.
- pTDStretch->setParameters((int)srate);
-}
-
-
-// Adds 'numSamples' pcs of samples from the 'samples' memory position into
-// the input of the object.
-void SoundTouch::putSamples(const SAMPLETYPE *samples, uint nSamples)
-{
- if (bSrateSet == false)
- {
- ST_THROW_RT_ERROR("SoundTouch : Sample rate not defined");
- }
- else if (channels == 0)
- {
- ST_THROW_RT_ERROR("SoundTouch : Number of channels not defined");
- }
-
- // Transpose the rate of the new samples if necessary
- /* Bypass the nominal setting - can introduce a click in sound when tempo/pitch control crosses the nominal value...
- if (rate == 1.0f)
- {
- // The rate value is same as the original, simply evaluate the tempo changer.
- assert(output == pTDStretch);
- if (pRateTransposer->isEmpty() == 0)
- {
- // yet flush the last samples in the pitch transposer buffer
- // (may happen if 'rate' changes from a non-zero value to zero)
- pTDStretch->moveSamples(*pRateTransposer);
- }
- pTDStretch->putSamples(samples, nSamples);
- }
- */
-#ifndef SOUNDTOUCH_PREVENT_CLICK_AT_RATE_CROSSOVER
- else if (rate <= 1.0f)
- {
- // transpose the rate down, output the transposed sound to tempo changer buffer
- assert(output == pTDStretch);
- pRateTransposer->putSamples(samples, nSamples);
- pTDStretch->moveSamples(*pRateTransposer);
- }
- else
-#endif
- {
- // evaluate the tempo changer, then transpose the rate up,
- assert(output == pRateTransposer);
- pTDStretch->putSamples(samples, nSamples);
- pRateTransposer->moveSamples(*pTDStretch);
- }
-}
-
-
-// Flushes the last samples from the processing pipeline to the output.
-// Clears also the internal processing buffers.
-//
-// Note: This function is meant for extracting the last samples of a sound
-// stream. This function may introduce additional blank samples in the end
-// of the sound stream, and thus it's not recommended to call this function
-// in the middle of a sound stream.
-void SoundTouch::flush()
-{
- int i;
- int nUnprocessed;
- int nOut;
- SAMPLETYPE *buff = new SAMPLETYPE[64 * channels];
-
- // check how many samples still await processing, and scale
- // that by tempo & rate to get expected output sample count
- nUnprocessed = numUnprocessedSamples();
- nUnprocessed = (int)((double)nUnprocessed / (tempo * rate) + 0.5);
-
- nOut = numSamples(); // ready samples currently in buffer ...
- nOut += nUnprocessed; // ... and how many we expect there to be in the end
-
- memset(buff, 0, 64 * channels * sizeof(SAMPLETYPE));
- // "Push" the last active samples out from the processing pipeline by
- // feeding blank samples into the processing pipeline until new,
- // processed samples appear in the output (not however, more than
- // 8ksamples in any case)
- for (i = 0; i < 128; i ++)
- {
- putSamples(buff, 64);
- if ((int)numSamples() >= nOut)
- {
- // Enough new samples have appeared into the output!
- // As samples come from processing with bigger chunks, now truncate it
- // back to maximum "nOut" samples to improve duration accuracy
- adjustAmountOfSamples(nOut);
-
- // finish
- break;
- }
- }
-
- delete[] buff;
-
- // Clear working buffers
- pRateTransposer->clear();
- pTDStretch->clearInput();
- // yet leave the 'tempoChanger' output intouched as that's where the
- // flushed samples are!
-}
-
-
-// Changes a setting controlling the processing system behaviour. See the
-// 'SETTING_...' defines for available setting ID's.
-bool SoundTouch::setSetting(int settingId, int value)
-{
- int sampleRate, sequenceMs, seekWindowMs, overlapMs;
-
- // read current tdstretch routine parameters
- pTDStretch->getParameters(&sampleRate, &sequenceMs, &seekWindowMs, &overlapMs);
-
- switch (settingId)
- {
- case SETTING_USE_AA_FILTER :
- // enables / disabless anti-alias filter
- pRateTransposer->enableAAFilter((value != 0) ? true : false);
- return true;
-
- case SETTING_AA_FILTER_LENGTH :
- // sets anti-alias filter length
- pRateTransposer->getAAFilter()->setLength(value);
- return true;
-
- case SETTING_USE_QUICKSEEK :
- // enables / disables tempo routine quick seeking algorithm
- pTDStretch->enableQuickSeek((value != 0) ? true : false);
- return true;
-
- case SETTING_SEQUENCE_MS:
- // change time-stretch sequence duration parameter
- pTDStretch->setParameters(sampleRate, value, seekWindowMs, overlapMs);
- return true;
-
- case SETTING_SEEKWINDOW_MS:
- // change time-stretch seek window length parameter
- pTDStretch->setParameters(sampleRate, sequenceMs, value, overlapMs);
- return true;
-
- case SETTING_OVERLAP_MS:
- // change time-stretch overlap length parameter
- pTDStretch->setParameters(sampleRate, sequenceMs, seekWindowMs, value);
- return true;
-
- default :
- return false;
- }
-}
-
-
-// Reads a setting controlling the processing system behaviour. See the
-// 'SETTING_...' defines for available setting ID's.
-//
-// Returns the setting value.
-int SoundTouch::getSetting(int settingId) const
-{
- int temp;
-
- switch (settingId)
- {
- case SETTING_USE_AA_FILTER :
- return (uint)pRateTransposer->isAAFilterEnabled();
-
- case SETTING_AA_FILTER_LENGTH :
- return pRateTransposer->getAAFilter()->getLength();
-
- case SETTING_USE_QUICKSEEK :
- return (uint) pTDStretch->isQuickSeekEnabled();
-
- case SETTING_SEQUENCE_MS:
- pTDStretch->getParameters(NULL, &temp, NULL, NULL);
- return temp;
-
- case SETTING_SEEKWINDOW_MS:
- pTDStretch->getParameters(NULL, NULL, &temp, NULL);
- return temp;
-
- case SETTING_OVERLAP_MS:
- pTDStretch->getParameters(NULL, NULL, NULL, &temp);
- return temp;
-
- case SETTING_NOMINAL_INPUT_SEQUENCE :
- return pTDStretch->getInputSampleReq();
-
- case SETTING_NOMINAL_OUTPUT_SEQUENCE :
- return pTDStretch->getOutputBatchSize();
-
- default :
- return 0;
- }
-}
-
-
-// Clears all the samples in the object's output and internal processing
-// buffers.
-void SoundTouch::clear()
-{
- pRateTransposer->clear();
- pTDStretch->clear();
-}
-
-
-
-/// Returns number of samples currently unprocessed.
-uint SoundTouch::numUnprocessedSamples() const
-{
- FIFOSamplePipe * psp;
- if (pTDStretch)
- {
- psp = pTDStretch->getInput();
- if (psp)
- {
- return psp->numSamples();
- }
- }
- return 0;
-}
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