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Differential D2716 Diff 9135 extern/audaspace/bindings/C/AUD_Special.cpp

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extern/audaspace/bindings/C/AUD_Special.cpp

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/*******************************************************************************
* Copyright 2009-2016 Jörg Müller
*
* 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.
******************************************************************************/
#include "Exception.h"
#include "IReader.h"
#include "file/File.h"
#include "respec/ChannelMapper.h"
#include "fx/Lowpass.h"
#include "fx/Highpass.h"
#include "fx/Envelope.h"
#include "respec/LinearResample.h"
#include "fx/Threshold.h"
#include "fx/Accumulator.h"
#include "fx/Sum.h"
#include "generator/Silence.h"
#include "fx/Limiter.h"
#include "devices/DeviceManager.h"
#include "sequence/Sequence.h"
#include "file/FileWriter.h"
#include "devices/ReadDevice.h"
#include "plugin/PluginManager.h"
#include "devices/DeviceManager.h"
#include "devices/IDeviceFactory.h"
#include "devices/NULLDevice.h"
#include <cassert>
#include <cstring>
#include <cmath>
#include <sstream>
using namespace aud;
#define AUD_CAPI_IMPLEMENTATION
#include "AUD_Special.h"
static inline AUD_Specs convSpecToC(aud::Specs specs)
{
AUD_Specs s;
s.channels = static_cast<AUD_Channels>(specs.channels);
s.rate = static_cast<AUD_SampleRate>(specs.rate);
return s;
}
static inline aud::Specs convCToSpec(AUD_Specs specs)
{
aud::Specs s;
s.channels = static_cast<Channels>(specs.channels);
s.rate = static_cast<SampleRate>(specs.rate);
return s;
}
static inline AUD_DeviceSpecs convDSpecToC(aud::DeviceSpecs specs)
{
AUD_DeviceSpecs s;
s.specs = convSpecToC(specs.specs);
s.format = static_cast<AUD_SampleFormat>(specs.format);
return s;
}
static inline aud::DeviceSpecs convCToDSpec(AUD_DeviceSpecs specs)
{
aud::DeviceSpecs s;
s.specs = convCToSpec(specs.specs);
s.format = static_cast<SampleFormat>(specs.format);
return s;
}
AUD_API AUD_SoundInfo AUD_getInfo(AUD_Sound* sound)
{
assert(sound);
AUD_SoundInfo info;
info.specs.channels = AUD_CHANNELS_INVALID;
info.specs.rate = AUD_RATE_INVALID;
info.length = 0.0f;
try
{
std::shared_ptr<IReader> reader = (*sound)->createReader();
if(reader.get())
{
info.specs = convSpecToC(reader->getSpecs());
info.length = reader->getLength() / (float) info.specs.rate;
}
}
catch(Exception&)
{
}
return info;
}
AUD_API float* AUD_readSoundBuffer(const char* filename, float low, float high,
float attack, float release, float threshold,
int accumulate, int additive, int square,
float sthreshold, double samplerate, int* length)
{
Buffer buffer;
DeviceSpecs specs;
specs.channels = CHANNELS_MONO;
specs.rate = (SampleRate)samplerate;
std::shared_ptr<ISound> sound;
std::shared_ptr<ISound> file = std::shared_ptr<ISound>(new File(filename));
int position = 0;
try
{
std::shared_ptr<IReader> reader = file->createReader();
SampleRate rate = reader->getSpecs().rate;
sound = std::shared_ptr<ISound>(new ChannelMapper(file, specs));
if(high < rate)
sound = std::shared_ptr<ISound>(new Lowpass(sound, high));
if(low > 0)
sound = std::shared_ptr<ISound>(new Highpass(sound, low));
sound = std::shared_ptr<ISound>(new Envelope(sound, attack, release, threshold, 0.1f));
sound = std::shared_ptr<ISound>(new LinearResample(sound, specs));
if(square)
sound = std::shared_ptr<ISound>(new Threshold(sound, sthreshold));
if(accumulate)
sound = std::shared_ptr<ISound>(new Accumulator(sound, additive));
else if(additive)
sound = std::shared_ptr<ISound>(new Sum(sound));
reader = sound->createReader();
if(!reader.get())
return nullptr;
int len;
bool eos;
do
{
len = samplerate;
buffer.resize((position + len) * sizeof(float), true);
reader->read(len, eos, buffer.getBuffer() + position);
position += len;
} while(!eos);
}
catch(Exception&)
{
return nullptr;
}
float * result = (float *)malloc(position * sizeof(float));
std::memcpy(result, buffer.getBuffer(), position * sizeof(float));
*length = position;
return result;
}
static void pauseSound(AUD_Handle* handle)
{
assert(handle);
(*handle)->pause();
}
AUD_API AUD_Handle* AUD_pauseAfter(AUD_Handle* handle, float seconds)
{
std::shared_ptr<ISound> silence = std::shared_ptr<ISound>(new Silence);
std::shared_ptr<ISound> limiter = std::shared_ptr<ISound>(new Limiter(silence, 0, seconds));
auto device = DeviceManager::getDevice();
std::lock_guard<ILockable> lock(*device);
try
{
AUD_Handle handle2 = device->play(limiter);
if(handle2.get())
{
handle2->setStopCallback((stopCallback)pauseSound, handle);
return new AUD_Handle(handle2);
}
}
catch(Exception&)
{
}
return nullptr;
}
AUD_API int AUD_readSound(AUD_Sound* sound, float* buffer, int length, int samples_per_second, short* interrupt)
{
DeviceSpecs specs;
float* buf;
Buffer aBuffer;
specs.rate = RATE_INVALID;
specs.channels = CHANNELS_MONO;
specs.format = FORMAT_INVALID;
std::shared_ptr<IReader> reader = ChannelMapper(*sound, specs).createReader();
specs.specs = reader->getSpecs();
int len;
float samplejump = specs.rate / samples_per_second;
float min, max, power, overallmax;
bool eos;
overallmax = 0;
for(int i = 0; i < length; i++)
{
len = floor(samplejump * (i+1)) - floor(samplejump * i);
if(*interrupt)
return 0;
aBuffer.assureSize(len * AUD_SAMPLE_SIZE(specs));
buf = aBuffer.getBuffer();
reader->read(len, eos, buf);
max = min = *buf;
power = *buf * *buf;
for(int j = 1; j < len; j++)
{
if(buf[j] < min)
min = buf[j];
if(buf[j] > max)
max = buf[j];
power += buf[j] * buf[j];
}
buffer[i * 3] = min;
buffer[i * 3 + 1] = max;
buffer[i * 3 + 2] = sqrt(power) / len;
if(overallmax < max)
overallmax = max;
if(overallmax < -min)
overallmax = -min;
if(eos)
{
length = i;
break;
}
}
if(overallmax > 1.0f)
{
for(int i = 0; i < length * 3; i++)
{
buffer[i] /= overallmax;
}
}
return length;
}
AUD_API const char* AUD_mixdown(AUD_Sound* sound, unsigned int start, unsigned int length, unsigned int buffersize, const char* filename, AUD_DeviceSpecs specs, AUD_Container format, AUD_Codec codec, unsigned int bitrate)
{
try
{
Sequence* f = dynamic_cast<Sequence *>(sound->get());
f->setSpecs(convCToSpec(specs.specs));
std::shared_ptr<IReader> reader = f->createQualityReader();
reader->seek(start);
std::shared_ptr<IWriter> writer = FileWriter::createWriter(filename, convCToDSpec(specs), static_cast<Container>(format), static_cast<Codec>(codec), bitrate);
FileWriter::writeReader(reader, writer, length, buffersize);
return nullptr;
}
catch(Exception& e)
{
return e.getMessage().c_str();
}
}
AUD_API const char* AUD_mixdown_per_channel(AUD_Sound* sound, unsigned int start, unsigned int length, unsigned int buffersize, const char* filename, AUD_DeviceSpecs specs, AUD_Container format, AUD_Codec codec, unsigned int bitrate)
{
try
{
Sequence* f = dynamic_cast<Sequence *>(sound->get());
f->setSpecs(convCToSpec(specs.specs));
std::vector<std::shared_ptr<IWriter> > writers;
int channels = specs.channels;
specs.channels = AUD_CHANNELS_MONO;
for(int i = 0; i < channels; i++)
{
std::stringstream stream;
std::string fn = filename;
size_t index = fn.find_last_of('.');
size_t index_slash = fn.find_last_of('/');
size_t index_backslash = fn.find_last_of('\\');
if((index == std::string::npos) ||
((index < index_slash) && (index_slash != std::string::npos)) ||
((index < index_backslash) && (index_backslash != std::string::npos)))
{
stream << filename << "_" << (i + 1);
}
else
{
stream << fn.substr(0, index) << "_" << (i + 1) << fn.substr(index);
}
writers.push_back(FileWriter::createWriter(stream.str(), convCToDSpec(specs), static_cast<Container>(format), static_cast<Codec>(codec), bitrate));
}
std::shared_ptr<IReader> reader = f->createQualityReader();
reader->seek(start);
FileWriter::writeReader(reader, writers, length, buffersize);
return nullptr;
}
catch(Exception& e)
{
return e.getMessage().c_str();
}
}
AUD_API AUD_Device* AUD_openMixdownDevice(AUD_DeviceSpecs specs, AUD_Sound* sequencer, float volume, float start)
{
try
{
ReadDevice* device = new ReadDevice(convCToDSpec(specs));
device->setQuality(true);
device->setVolume(volume);
Sequence* f = dynamic_cast<Sequence*>(sequencer->get());
f->setSpecs(convCToSpec(specs.specs));
AUD_Handle handle = device->play(f->createQualityReader());
if(handle.get())
{
handle->seek(start);
}
return new AUD_Device(device);
}
catch(Exception&)
{
return nullptr;
}
}
AUD_API void AUD_initOnce()
{
PluginManager::loadPlugins();
NULLDevice::registerPlugin();
}
AUD_API void AUD_exitOnce()
{
}
AUD_API AUD_Device* AUD_init(const char* device, AUD_DeviceSpecs specs, int buffersize, const char* name)
{
try
{
std::shared_ptr<IDeviceFactory> factory = DeviceManager::getDeviceFactory(device);
if(factory)
{
factory->setName(name);
factory->setBufferSize(buffersize);
factory->setSpecs(convCToDSpec(specs));
auto device = factory->openDevice();
DeviceManager::setDevice(device);
return new AUD_Device(device);
}
}
catch(Exception&)
{
}
return nullptr;
}
AUD_API void AUD_exit(AUD_Device* device)
{
delete device;
DeviceManager::releaseDevice();
}
AUD_API char** AUD_getDeviceNames()
{
std::vector<std::string> v_names = DeviceManager::getAvailableDeviceNames();
char** names = (char**) malloc(sizeof(char*) * (v_names.size() + 1));
for(int i = 0; i < v_names.size(); i++)
{
std::string name = v_names[i];
names[i] = (char*) malloc(sizeof(char) * (name.length() + 1));
strcpy(names[i], name.c_str());
}
names[v_names.size()] = nullptr;
return names;
}