1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889 |
- /*
- Copyright 2011 Tobias "Tomoko" Platen
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU Affero General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
- This program 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 General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
- #include "sekai/VoiceSampler.h"
- // FIXME: do not hardcode
- #define factor 4
- #define delay 0
- #include <sndfile.h>
- #include <boost/filesystem.hpp>
- VoiceSampler::VoiceSampler(int buffer_size) : OLABuffer(buffer_size) {}
- VoiceSampler::~VoiceSampler() {}
- bool VoiceSampler::readData(float* data, int size, int fill) {
- // TODO: fill if no data
- while (!isFilled(fill)) {
- if (addOnePulse() == false) return false;
- }
- pop(data, size);
- postProcess(data,size);
- outputPos+=size;
- return true;
- }
- #if 0
- int VoiceSampler::findPitchMark(struct Track& track, float pos,
- struct Pitch& p0, struct Pitch& p1,
- float* out) {
- int count = track.getPitchCount();
- for (int i = 0; i < count - 1; i++) {
- p0 = track.getPitch(i);
- p1 = track.getPitch(i + 1);
- if (p0.pos <= pos && p1.pos > pos) {
- if (out) *out = (pos - p0.pos) / (p1.pos - p0.pos);
- return i;
- }
- }
- return -1;
- }
- #endif
- #if 0
- bool VoiceSampler::load(struct VoiceRecord& record, int& samplerate,
- std::string fileName) {
- std::string f0 =
- boost::filesystem::change_extension(fileName, ".f0").string();
- std::string pmk =
- boost::filesystem::change_extension(fileName, ".pmk").string();
- record.f0Track.readFromFile(f0);
- record.pmkTrack.readFromFile(pmk);
- SF_INFO info = {0};
- SNDFILE* sf = sf_open(fileName.c_str(), SFM_READ, &info);
- if (sf == nullptr) return false;
- record.input_data = new float[info.frames];
- record.input_data_length = info.frames;
- assert(info.channels == 1);
- samplerate = info.samplerate;
- sf_read_float(sf, record.input_data, info.frames);
- sf_close(sf);
- return true;
- }
- #endif
- void VoiceSampler::hanningWindow(float* signal, int size) {
- // see https://github.com/numediart/MBROLA/blob/master/Engine/mbrola.c for
- // reference
- for (int i = 0; i < size; i++)
- signal[i] *= (0.5 * (1.0 - cos((double)i * 2 * M_PI / (float)size)));
- }
|