int SampleChannel::load(const char *file)
{
if (strcmp(file, "") == 0 || gIsDir(file)) {
gLog("[SampleChannel] file not specified\n");
return SAMPLE_LEFT_EMPTY;
}
if (strlen(file) > FILENAME_MAX)
return SAMPLE_PATH_TOO_LONG;
Wave *w = new Wave();
if (!w->open(file)) {
gLog("[SampleChannel] %s: read error\n", file);
delete w;
return SAMPLE_READ_ERROR;
}
if (w->channels() > 2) {
gLog("[SampleChannel] %s: unsupported multichannel wave\n", file);
delete w;
return SAMPLE_MULTICHANNEL;
}
if (!w->readData()) {
delete w;
return SAMPLE_READ_ERROR;
}
if (w->channels() == 1) /** FIXME: error checking */
wfx_monoToStereo(w);
if (w->rate() != G_Conf.samplerate) {
gLog("[SampleChannel] input rate (%d) != system rate (%d), conversion needed\n",
w->rate(), G_Conf.samplerate);
w->resample(G_Conf.rsmpQuality, G_Conf.samplerate);
}
pushWave(w);
/* sample name must be unique. Start from k = 1, zero is too nerdy */
std::string oldName = wave->name;
int k = 1;
while (!mh_uniqueSamplename(this, wave->name.c_str())) {
wave->updateName((oldName + "-" + gItoa(k)).c_str());
k++;
}
gLog("[SampleChannel] %s loaded in channel %d\n", file, index);
return SAMPLE_LOADED_OK;
}
SampleChannel *mh_startInputRec()
{
/* search for the next available channel */
SampleChannel *chan = NULL;
for (unsigned i=0; i<G_Mixer.channels.size; i++) {
if (G_Mixer.channels.at(i)->type == CHANNEL_SAMPLE)
if (((SampleChannel*) G_Mixer.channels.at(i))->canInputRec()) {
chan = (SampleChannel*) G_Mixer.channels.at(i);
break;
}
}
/* no chans available? */
if (chan == NULL)
return NULL;
Wave *w = new Wave();
if (!w->allocEmpty(G_Mixer.totalFrames))
return NULL;
/* increase lastTakeId until the sample name TAKE-[n] is unique */
char name[32];
sprintf(name, "TAKE-%d", G_Patch.lastTakeId);
while (!mh_uniqueSamplename(chan, name)) {
G_Patch.lastTakeId++;
sprintf(name, "TAKE-%d", G_Patch.lastTakeId);
}
chan->allocEmpty(G_Mixer.totalFrames, G_Patch.lastTakeId);
G_Mixer.chanInput = chan;
/* start to write from the actualFrame, not the beginning */
/** FIXME: move this before wave allocation*/
G_Mixer.inputTracker = G_Mixer.actualFrame;
gLog(
"[mh] start input recs using chan %d with size %d, frame=%d\n",
chan->index, G_Mixer.totalFrames, G_Mixer.inputTracker
);
return chan;
}
