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audio export: fix channel count in per-chan export

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tildearrow 2024-05-11 02:32:35 -05:00
parent fc66fe1b15
commit 68383869d3
2 changed files with 25 additions and 17 deletions
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34
src/engine/wavOps.cpp
View file

@ -243,10 +243,12 @@ void DivEngine::runExportThread() {
// take control of audio output
deinitAudioBackend();
float* outBuf[3];
outBuf[0]=new float[EXPORT_BUFSIZE];
outBuf[1]=new float[EXPORT_BUFSIZE];
outBuf[2]=new float[EXPORT_BUFSIZE*2];
float* outBuf[DIV_MAX_OUTPUTS];
float* outBufFinal;
for (int i=0; i<exportOutputs; i++) {
outBuf[i]=new float[EXPORT_BUFSIZE];
}
outBufFinal=new float[EXPORT_BUFSIZE*exportOutputs];
logI("rendering to files...");
@ -257,7 +259,7 @@ void DivEngine::runExportThread() {
String fname=fmt::sprintf("%s_c%02d.wav",exportPath,i+1);
logI("- %s",fname.c_str());
si.samplerate=got.rate;
si.channels=2;
si.channels=exportOutputs;
si.format=SF_FORMAT_WAV|SF_FORMAT_PCM_16;
sf=sfWrap.doOpen(fname.c_str(),SFM_WRITE,&si);
@ -293,24 +295,27 @@ void DivEngine::runExportThread() {
while (playing) {
size_t total=0;
nextBuf(NULL,outBuf,0,2,EXPORT_BUFSIZE);
nextBuf(NULL,outBuf,0,exportOutputs,EXPORT_BUFSIZE);
if (totalProcessed>EXPORT_BUFSIZE) {
logE("error: total processed is bigger than export bufsize! %d>%d",totalProcessed,EXPORT_BUFSIZE);
totalProcessed=EXPORT_BUFSIZE;
}
int fi=0;
for (int j=0; j<(int)totalProcessed; j++) {
total++;
if (isFadingOut) {
double mul=(1.0-((double)curFadeOutSample/(double)fadeOutSamples));
outBuf[2][j<<1]=MAX(-1.0f,MIN(1.0f,outBuf[0][j]))*mul;
outBuf[2][1+(j<<1)]=MAX(-1.0f,MIN(1.0f,outBuf[1][j]))*mul;
for (int k=0; k<exportOutputs; k++) {
outBufFinal[fi++]=MAX(-1.0f,MIN(1.0f,outBuf[k][j]))*mul;
}
if (++curFadeOutSample>=fadeOutSamples) {
playing=false;
break;
}
} else {
outBuf[2][j<<1]=MAX(-1.0f,MIN(1.0f,outBuf[0][j]));
outBuf[2][1+(j<<1)]=MAX(-1.0f,MIN(1.0f,outBuf[1][j]));
for (int k=0; k<exportOutputs; k++) {
outBufFinal[fi++]=MAX(-1.0f,MIN(1.0f,outBuf[k][j]));
}
if (lastLoopPos>-1 && j>=lastLoopPos && totalLoops>=exportLoopCount) {
logD("start fading out...");
isFadingOut=true;
@ -318,7 +323,7 @@ void DivEngine::runExportThread() {
}
}
}
if (sf_writef_float(sf,outBuf[2],total)!=(int)total) {
if (sf_writef_float(sf,outBufFinal,total)!=(int)total) {
logE("error: failed to write entire buffer!");
break;
}
@ -341,9 +346,10 @@ void DivEngine::runExportThread() {
if (stopExport) break;
}
delete[] outBuf[0];
delete[] outBuf[1];
delete[] outBuf[2];
delete[] outBufFinal;
for (int i=0; i<exportOutputs; i++) {
delete[] outBuf[i];
}
for (int i=0; i<chans; i++) {
isMuted[i]=false;

8
src/gui/exportOptions.cpp
View file

@ -45,9 +45,11 @@ void FurnaceGUI::drawExportAudio(bool onWindow) {
if (audioExportOptions.sampleRate>384000) audioExportOptions.sampleRate=384000;
}
if (ImGui::InputInt("Channels in file",&audioExportOptions.chans,1,1)) {
if (audioExportOptions.chans<1) audioExportOptions.chans=1;
if (audioExportOptions.chans>16) audioExportOptions.chans=16;
if (audioExportOptions.mode!=DIV_EXPORT_MODE_MANY_SYS) {
if (ImGui::InputInt("Channels in file",&audioExportOptions.chans,1,1)) {
if (audioExportOptions.chans<1) audioExportOptions.chans=1;
if (audioExportOptions.chans>16) audioExportOptions.chans=16;
}
}
if (ImGui::InputInt("Loops",&audioExportOptions.loops,1,2)) {