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Rewrite GetLink(ed) in vamp effects

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This commit is contained in:
Paul Licameli 2018-09-13 10:17:59 -04:00
parent 70f7b0f6ef
commit 518df314eb
1 changed files with 22 additions and 18 deletions
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34
src/effects/vamp/VampEffect.cpp
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@ -299,25 +299,25 @@ bool VampEffect::Init()
{
mRate = 0.0;
for (auto left : inputTracks()->Leaders< const WaveTrack >() )
{
if (mRate == 0.0)
{
mRate = left->GetRate();
}
if (left->GetLinked())
{
auto right = static_cast<const WaveTrack*>( left->GetLink() );
// PRL: this loop checked that channels of a track have the same rate,
// but there was no check that all tracks have one rate, and only the first
// is remembered in mRate. Is that correct?
for (auto leader : inputTracks()->Leaders<const WaveTrack>()) {
auto channelGroup = TrackList::Channels( leader );
auto rate = (*channelGroup.first++) -> GetRate();
for(auto channel : channelGroup) {
if (rate != channel->GetRate())
// PRL: Track rate might not match individual clip rates.
// So is this check not adequate?
if (left->GetRate() != right->GetRate())
{
// TODO: more-than-two-channels-message
Effect::MessageBox(_("Sorry, Vamp Plug-ins cannot be run on stereo tracks where the individual channels of the track do not match."));
return false;
}
}
if (mRate == 0.0)
mRate = rate;
}
if (mRate <= 0.0)
@ -361,22 +361,26 @@ bool VampEffect::Process()
std::vector<std::shared_ptr<Effect::AddedAnalysisTrack>> addedTracks;
for (auto left : inputTracks()->Leaders< const WaveTrack >() )
for (auto leader : inputTracks()->Leaders<const WaveTrack>())
{
auto channelGroup = TrackList::Channels(leader);
auto left = *channelGroup.first++;
sampleCount lstart, rstart = 0;
sampleCount len;
GetSamples(left, &lstart, &len);
unsigned channels = 1;
const WaveTrack *right{};
if (left->GetLinked())
const WaveTrack *right = *channelGroup.first++;
if (right)
{
right = static_cast< const WaveTrack* >( left->GetLink() );
channels = 2;
GetSamples(right, &rstart, &len);
}
// TODO: more-than-two-channels
size_t step = mPlugin->getPreferredStepSize();
size_t block = mPlugin->getPreferredBlockSize();