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Diffstat (limited to 'attic/muse2-oom/muse2/muse/waveevent.cpp')
| -rw-r--r-- | attic/muse2-oom/muse2/muse/waveevent.cpp | 453 |
1 files changed, 0 insertions, 453 deletions
diff --git a/attic/muse2-oom/muse2/muse/waveevent.cpp b/attic/muse2-oom/muse2/muse/waveevent.cpp deleted file mode 100644 index 867ce5c8..00000000 --- a/attic/muse2-oom/muse2/muse/waveevent.cpp +++ /dev/null @@ -1,453 +0,0 @@ -//========================================================= -// MusE -// Linux Music Editor -// $Id: waveevent.cpp,v 1.9.2.6 2009/12/20 05:00:35 terminator356 Exp $ -// -// (C) Copyright 2000-2003 Werner Schweer (ws@seh.de) -//========================================================= - -#include "audioconvert.h" -#include "globals.h" -#include "event.h" -#include "waveevent.h" -#include "xml.h" -#include "wave.h" -#include <iostream> -#include <math.h> - -// Added by Tim. p3.3.18 -//#define USE_SAMPLERATE -// -//#define WAVEEVENT_DEBUG -//#define WAVEEVENT_DEBUG_PRC - -//--------------------------------------------------------- -// WaveEvent -//--------------------------------------------------------- - -WaveEventBase::WaveEventBase(EventType t) - : EventBase(t) - { - deleted = false; - } - -//--------------------------------------------------------- -// WaveEventBase::clone -//--------------------------------------------------------- - -EventBase* WaveEventBase::clone() -{ - return new WaveEventBase(*this); -} - -//--------------------------------------------------------- -// WaveEvent::mid -//--------------------------------------------------------- - -EventBase* WaveEventBase::mid(unsigned b, unsigned e) - { - WaveEventBase* ev = new WaveEventBase(*this); - unsigned fr = frame(); - unsigned start = fr - b; - if(b > fr) - { - start = 0; - ev->setSpos(spos() + b - fr); - } - unsigned end = endFrame(); - - if (e < end) - end = e; - - ev->setFrame(start); - ev->setLenFrame(end - b - start); - return ev; - } - -//--------------------------------------------------------- -// dump -//--------------------------------------------------------- - -void WaveEventBase::dump(int n) const - { - EventBase::dump(n); - } - -//--------------------------------------------------------- -// WaveEventBase::read -//--------------------------------------------------------- - -void WaveEventBase::read(Xml& xml) - { - for (;;) { - Xml::Token token = xml.parse(); - const QString& tag = xml.s1(); - switch (token) { - case Xml::Error: - case Xml::End: - case Xml::Attribut: - return; - case Xml::TagStart: - if (tag == "poslen") - PosLen::read(xml, "poslen"); - else if (tag == "frame") - _spos = xml.parseInt(); - else if (tag == "file") { - SndFile* wf = getWave(xml.parse1(), true); - if (wf) { - f = SndFileR(wf); - } - } - else - xml.unknown("Event"); - break; - case Xml::TagEnd: - if (tag == "event") { - Pos::setType(FRAMES); // DEBUG - return; - } - default: - break; - } - } - } - -//--------------------------------------------------------- -// write -//--------------------------------------------------------- - -//void WaveEventBase::write(int level, Xml& xml, const Pos& offset) const -void WaveEventBase::write(int level, Xml& xml, const Pos& offset, bool forcePath) const - { - if (f.isNull()) - return; - xml.tag(level++, "event"); - PosLen wpos(*this); - wpos += offset; -// if (offset) -// wpos.setTick(wpos.tick() + offset); - wpos.write(level, xml, "poslen"); - xml.intTag(level, "frame", _spos); // offset in wave file - - // - // waves in the project dirctory are stored - // with relative path name, others with absolute path - // - QString path = f.dirPath(); - - //if (path.contains(museProject)) { - if (!forcePath && path.contains(museProject)) { - // extract museProject. - QString newName = f.path().remove(museProject+"/"); - xml.strTag(level, "file", newName); - } - else - xml.strTag(level, "file", f.path()); - xml.etag(level, "event"); - } - -//void WaveEventBase::read(unsigned offset, float** buffer, int channel, int n, bool overwrite) -//void WaveEventBase::readAudio(unsigned offset, float** buffer, int channel, int n, bool doSeek, bool overwrite) -//off_t WaveEventBase::readAudio(SRC_STATE* src_state, off_t sfCurFrame, unsigned offset, float** buffer, int channel, int n, bool doSeek, bool overwrite) -//off_t WaveEventBase::readAudio(AudioConverter* audConv, off_t sfCurFrame, unsigned offset, float** buffer, int channel, int n, bool doSeek, bool overwrite) -// p3.3.33 -void WaveEventBase::readAudio(WavePart* part, unsigned offset, float** buffer, int channel, int n, bool doSeek, bool overwrite) -{ - // Added by Tim. p3.3.17 - #ifdef WAVEEVENT_DEBUG_PRC - printf("WaveEventBase::readAudio audConv:%p sfCurFrame:%ld offset:%u channel:%d n:%d\n", audConv, sfCurFrame, offset, channel, n); - #endif - - // Changed by Tim. p3.3.18 - #ifdef USE_SAMPLERATE - - // TODO: - >>>>>>>>>>>+++++++++++++++++++++++++++++ - // If we have a valid audio converter then use it to do the processing. Otherwise just a normal seek + read. - if(audConv) - //sfCurFrame = audConv->process(f, sfCurFrame, offset + _spos, buffer, channel, n, doSeek, overwrite); - sfCurFrame = audConv->readAudio(f, sfCurFrame, offset, buffer, channel, n, doSeek, overwrite); - else - { - if(!f.isNull()) - { - sfCurFrame = f.seek(offset + _spos, 0); - sfCurFrame += f.read(channel, buffer, n, overwrite); - } - } - //return sfCurFrame; - return; - - /* - unsigned fsrate = f.samplerate(); - int fchan = f.channels(); - off_t frame = offset + _spos; - //bool resample = src_state && ((unsigned)sampleRate != fsrate); - bool resample = audConv && audConv->isValid() && ((unsigned)sampleRate != fsrate); - - // Is a 'transport' seek requested? (Not to be requested with every read! Should only be for 'first read' seeks, or positional 'transport' seeks.) - // Due to the support of sound file references in MusE, seek must ALWAYS be done before read, as before, - // except now we alter the seek position if sample rate conversion is being used and remember the seek positions. - if(doSeek) - { - if(!resample) - { - // Sample rates are the same. Just a regular seek, no conversion. - sfCurFrame = f.seek(frame, 0); - } - else - { - // Sample rates are different. Seek to a calculated 'sample rate ratio factored' position. - - double srcratio = (double)fsrate / (double)sampleRate; - //long inSize = long((double)frames * _src_ratio) + 1 // From MusE-2 file converter. - off_t newfr = (off_t)floor(((double)frame * srcratio)); // From simplesynth. - - //_sfCurFrame = sf_seek(sf, newfr, 0); - sfCurFrame = f.seek(newfr, 0); - - // Added by Tim. p3.3.17 - #ifdef WAVEEVENT_DEBUG_PRC - printf("WaveEventBase::readAudio Seek frame:%ld converted to frame:%ld _sfCurFrame:%ld\n", frame, newfr, sfCurFrame); - #endif - - // Reset the src converter. It's current state is meaningless now. - //int srcerr = src_reset(src_state); - int srcerr = audConv->reset(); - if(srcerr != 0) - printf("WaveEventBase::readAudio Converter reset failed: %s\n", src_strerror(srcerr)); - } - } - else - { - // No seek requested. Are the rates the same? - if(!resample) - // Sample rates are the same. Just a regular seek, no conversion. - sfCurFrame = f.seek(frame, 0); - else - { - // Added by Tim. p3.3.17 - #ifdef WAVEEVENT_DEBUG_PRC - printf("WaveEventBase::readAudio No 'transport' seek, rates different. Seeking to _sfCurFrame:%ld\n", sfCurFrame); - #endif - - // Sample rates are different. We can't just tell seek to go to an absolute calculated position, - // since the last position can vary - it might not be what the calculated position is. - // We must use the last position left by SRC conversion, ie. let the file position progress on its own. - sfCurFrame = f.seek(sfCurFrame, 0); - } - } - - // Do we not need to resample? - if(!resample) - { - return sfCurFrame + f.read(channel, buffer, n, overwrite); - } - - size_t rn; - - if((sampleRate == 0) || (fsrate == 0)) - { - if(debugMsg) - printf("WaveEventBase::readAudio Using SRC: Error: sampleRate or file samplerate is zero!\n"); - return sfCurFrame; - } - - // Ratio is defined as output sample rate over input samplerate. - double srcratio = (double)sampleRate / (double)fsrate; - long outFrames = n; - //long outSize = outFrames * channel; - long outSize = outFrames * fchan; - - //long inSize = long(outSize * srcratio) + 1 // From MusE-2 file converter. - //long inSize = (long)floor(((double)outSize / srcratio)); // From simplesynth. - //long inFrames = (long)floor(((double)outFrames / srcratio)); // From simplesynth. - long inFrames = (long)ceil(((double)outFrames / srcratio)); // From simplesynth. - //long inFrames = (long)floor(double(outFrames * sfinfo.samplerate) / double(sampleRate)); // From simplesynth. - - // Extra input compensation - sometimes src requires more input frames than expected in order to - // always get a reliable number of used out frames ! - //inFrames = inFrames / (srcratio / 2.0); - long inComp = 10; - inFrames += inComp; - - long inSize = inFrames * fchan; - //long inSize = inFrames * channel; - - float inbuffer[inSize]; - float outbuffer[outSize]; - - //float* poutbuf; - - // If the number of file channels is the same as the process channels AND we want overwrite, we can get away with direct copying. - //if(overwrite && channel == fchan) - // Point the out buffer directly at the return buffers. - // poutbuf = buffer; - //else - // Point the out buffer at our local buffers. - // poutbuf = &outbuffer[0]; - - // Converter channels are fixed at creation time! Can't change them on the fly. Can't use 'channel' paramter. - //rn = f.read(inbuffer, inFrames); - rn = f.readDirect(inbuffer, inFrames); - - // convert - SRC_DATA srcdata; - srcdata.data_in = inbuffer; - srcdata.data_out = outbuffer; - //srcdata.data_out = poutbuf; - //srcdata.input_frames = inSize; - srcdata.input_frames = rn; - srcdata.output_frames = outFrames; - srcdata.end_of_input = ((long)rn != inFrames); - srcdata.src_ratio = srcratio; - - #ifdef WAVEEVENT_DEBUG_PRC - printf("WaveEventBase::readAudio %s processing converter... inFrames:%ld inSize:%ld outFrames:%ld outSize:%ld rn:%d", - f.name().toLatin1(), inFrames, inSize, outFrames, outSize, rn); - #endif - - //int srcerr = src_process(src_state, &srcdata); - int srcerr = audConv->process(&srcdata); - if(srcerr != 0) - { - printf("\nWaveEventBase::readAudio SampleRate converter process failed: %s\n", src_strerror(srcerr)); - return sfCurFrame += rn; - } - - #ifdef WAVEEVENT_DEBUG_PRC - printf(" frames used in:%ld out:%ld\n", srcdata.input_frames_used, srcdata.output_frames_gen); - #endif - - // If the number of frames read by the soundfile equals the input frames, go back. - // Otherwise we have reached the end of the file, so going back is useless since - // there shouldn't be any further calls. (Definitely get buffer underruns if further calls!) - if((long)rn == inFrames) - { - // Go back by the amount of unused frames. - sf_count_t seekn = inFrames - srcdata.input_frames_used; - if(seekn != 0) - { - #ifdef WAVEEVENT_DEBUG_PRC - printf("WaveEventBase::readAudio Seek-back by:%d\n", seekn); - #endif - sfCurFrame = f.seek(-seekn, SEEK_CUR); - } - else - sfCurFrame += rn; - } - else - sfCurFrame += rn; - - if(debugMsg) - { - if(srcdata.output_frames_gen != outFrames) - printf("WaveEventBase::readAudio %s output_frames_gen:%ld != outFrames:%ld outSize:%ld inFrames:%ld srcdata.input_frames_used:%ld inSize:%ld rn:%d\n", - f.name().toLatin1(), srcdata.output_frames_gen, outFrames, outSize, inFrames, srcdata.input_frames_used, inSize, rn); - } - - if(inFrames != (long)rn) - { - if(debugMsg) - printf("WaveEventBase::readAudio %s rn:%zd != inFrames:%ld output_frames_gen:%ld outFrames:%ld outSize:%ld srcdata.input_frames_used:%ld inSize:%ld\n", - f.name().toLatin1(), rn, inFrames, srcdata.output_frames_gen, outFrames, outSize, srcdata.input_frames_used, inSize); - - // We've reached the end of the file. Convert the number of frames read. - //rn = (double)rn * srcratio + 1; - rn = (long)floor((double)rn * srcratio); - if(rn > (size_t)outFrames) - rn = outFrames; - } - else - if(srcdata.output_frames_gen != outFrames) - { - // SRC didn't give us the number of frames we requested. - // This can occasionally be radically different from the requested frames, or zero, - // even when ample excess input frames are supplied. - // We're not done converting yet - we haven't reached the end of the file. - // We must do something with the buffer. So let's zero whatever SRC didn't fill. - // FIXME: Instead of zeroing, try processing more input data until the out buffer is full. - long b = srcdata.output_frames_gen * channel; - long e = outFrames * channel; - for(long i = b; i < e; ++i) - outbuffer[i] = 0.0f; - //poutbuf[i] = 0.0f; - rn = outFrames; - } - else - rn = outFrames; - - float* poutbuf = &outbuffer[0]; - if(fchan == channel) - { - if(overwrite) - for (size_t i = 0; i < rn; ++i) - { - for(int ch = 0; ch < channel; ++ch) - *(buffer[ch] + i) = *poutbuf++; - } - else - for(size_t i = 0; i < rn; ++i) - { - for(int ch = 0; ch < channel; ++ch) - *(buffer[ch] + i) += *poutbuf++; - } - } - else if((fchan == 2) && (channel == 1)) - { - // stereo to mono - if(overwrite) - for(size_t i = 0; i < rn; ++i) - *(buffer[0] + i) = poutbuf[i + i] + poutbuf[i + i + 1]; - else - for(size_t i = 0; i < rn; ++i) - *(buffer[0] + i) += poutbuf[i + i] + poutbuf[i + i + 1]; - } - else if((fchan == 1) && (channel == 2)) - { - // mono to stereo - if(overwrite) - for(size_t i = 0; i < rn; ++i) - { - float data = *poutbuf++; - *(buffer[0]+i) = data; - *(buffer[1]+i) = data; - } - else - for(size_t i = 0; i < rn; ++i) - { - float data = *poutbuf++; - *(buffer[0]+i) += data; - *(buffer[1]+i) += data; - } - } - else - { - if(debugMsg) - printf("WaveEventBase::readAudio Channel mismatch: source chans:%d -> dst chans:%d\n", fchan, channel); - } - - return sfCurFrame; - */ - - - #else - if(f.isNull()) - return; - //return sfCurFrame; - - //sfCurFrame = f.seek(offset + _spos, 0); - //sfCurFrame += f.read(channel, buffer, n, overwrite); - f.seek(offset + _spos, 0); - f.read(channel, buffer, n, overwrite); - - // p3.3.41 - //fprintf(stderr, "WaveEventBase::readAudio data: n:%ld %e %e %e %e\n", n, buffer[0][0], buffer[0][1], buffer[0][2], buffer[0][3]); - - - //return sfCurFrame; - return; - #endif - -} - |