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/*
* SampleEdit.h
* ------------
* Purpose: Basic sample editing code (resizing, adding silence, normalizing, ...).
* Notes : (currently none)
* Authors: OpenMPT Devs
* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
*/
#pragma once
#include "openmpt/all/BuildSettings.hpp"
#include "FadeLaws.h"
#include "../soundlib/Snd_defs.h"
OPENMPT_NAMESPACE_BEGIN
class CSoundFile;
struct ModSample;
struct ModChannel;
namespace SampleEdit
{
enum ResetFlag
{
SmpResetCompo,
SmpResetInit,
SmpResetVibrato,
};
// Get a reference to all cue and loop points of the sample
std::vector<std::reference_wrapper<SmpLength>> GetCuesAndLoops(ModSample &smp);
// Insert silence to given location.
// Note: Is currently implemented only for inserting silence to the beginning and to the end of the sample.
// Return: Length of the new sample.
SmpLength InsertSilence(ModSample &smp, const SmpLength silenceLength, const SmpLength startFrom, CSoundFile &sndFile);
// Remove part of a sample [selStart, selEnd[.
// Note: Removed memory is not freed.
// Return: Length of the new sample.
SmpLength RemoveRange(ModSample &smp, SmpLength selStart, SmpLength selEnd, CSoundFile &sndFile);
// Change sample size.
// Note: If resized sample is bigger, silence will be added to the sample's tail.
// Return: Length of the new sample.
SmpLength ResizeSample(ModSample &smp, const SmpLength newLength, CSoundFile &sndFile);
// Resets samples.
void ResetSamples(CSoundFile &sndFile, ResetFlag resetflag, SAMPLEINDEX minSample = SAMPLEINDEX_INVALID, SAMPLEINDEX maxSample = SAMPLEINDEX_INVALID);
// Remove DC offset and normalize.
// Return: If DC offset was removed, returns original offset value, zero otherwise.
double RemoveDCOffset(ModSample &smp, SmpLength start, SmpLength end, CSoundFile &sndFile);
// Amplify / fade sample data
bool AmplifySample(ModSample &smp, SmpLength start, SmpLength end, double amplifyStart, double amplifyEnd, bool isFadeIn, Fade::Law fadeLaw, CSoundFile &sndFile);
// Reverse sample data
bool ReverseSample(ModSample &smp, SmpLength start, SmpLength end, CSoundFile &sndFile);
// Virtually unsign sample data
bool UnsignSample(ModSample &smp, SmpLength start, SmpLength end, CSoundFile &sndFile);
// Invert sample data (flip by 180 degrees)
bool InvertSample(ModSample &smp, SmpLength start, SmpLength end, CSoundFile &sndFile);
// Crossfade sample data to create smooth loops
bool XFadeSample(ModSample &smp, SmpLength fadeLength, int fadeLaw, bool afterloopFade, bool useSustainLoop, CSoundFile &sndFile);
// Silence parts of the sample data
bool SilenceSample(ModSample &smp, SmpLength start, SmpLength end, CSoundFile &sndFile);
// Modify stereo separation of the sample data. separation is in range [-200, 200]
bool StereoSepSample(ModSample &smp, SmpLength start, SmpLength end, double separation, CSoundFile &sndFile);
// Convert 16-bit sample to 8-bit
bool ConvertTo8Bit(ModSample &smp, CSoundFile &sndFile);
// Convert 8-bit sample to 16-bit
bool ConvertTo16Bit(ModSample &smp, CSoundFile &sndFile);
// Convert ping-pong loops to regular loops
bool ConvertPingPongLoop(ModSample &smp, CSoundFile &sndFile, bool sustainLoop);
} // namespace SampleEdit
OPENMPT_NAMESPACE_END
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