void ExportMultiple::CountTracksAndLabels()
{
mLabels = NULL;
mNumLabels = 0;
mNumWaveTracks = 0;
const Track* pTrack;
TrackListConstIterator iter;
for (pTrack = iter.First(mTracks); pTrack != NULL; pTrack = iter.Next())
{
switch (pTrack->GetKind())
{
// Count WaveTracks, and for linked pairs, count only the second of the pair.
case Track::Wave:
{
if (!pTrack->GetMute() && !pTrack->GetLinked()) // Don't count muted tracks.
mNumWaveTracks++;
break;
}
// Only support one label track???
case Track::Label:
{
// Supports only one LabelTrack.
if (mLabels == NULL) {
mLabels = (LabelTrack*)pTrack;
mNumLabels = mLabels->GetNumLabels();
}
break;
}
}
}
}
int TrackList::GetNumExportChannels(bool selectionOnly) const
{
/* counters for tracks panned different places */
int numLeft = 0;
int numRight = 0;
int numMono = 0;
/* track iteration kit */
const Track *tr;
TrackListConstIterator iter;
for (tr = iter.First(this); tr != NULL; tr = iter.Next()) {
// Want only unmuted wave tracks.
if ((tr->GetKind() != Track::Wave) || tr->GetMute())
continue;
// do we only want selected ones?
if (selectionOnly && !(tr->GetSelected())) {
//want selected but this one is not
continue;
}
// Found a left channel
if (tr->GetChannel() == Track::LeftChannel) {
numLeft++;
}
// Found a right channel
else if (tr->GetChannel() == Track::RightChannel) {
numRight++;
}
// Found a mono channel, but it may be panned
else if (tr->GetChannel() == Track::MonoChannel) {
float pan = ((WaveTrack*)tr)->GetPan();
// Figure out what kind of channel it should be
if (pan == -1.0) { // panned hard left
numLeft++;
}
else if (pan == 1.0) { // panned hard right
numRight++;
}
else if (pan == 0) { // panned dead center
numMono++;
}
else { // panned somewhere else
numLeft++;
numRight++;
}
}
}
// if there is stereo content, report 2, else report 1
if (numRight > 0 || numLeft > 0) {
return 2;
}
return 1;
}
