120 lines
3.3 KiB
C++
120 lines
3.3 KiB
C++
#include "audiorenderbackend.h"
|
|
|
|
#include <QDir>
|
|
#include <QtMath>
|
|
|
|
#include "audiorenderworker.h"
|
|
#include "common/filefunctions.h"
|
|
|
|
AudioRenderBackend::AudioRenderBackend(QObject *parent) :
|
|
RenderBackend(parent)
|
|
{
|
|
}
|
|
|
|
void AudioRenderBackend::SetParameters(const AudioRenderingParams ¶ms)
|
|
{
|
|
// Set new parameters
|
|
params_ = params;
|
|
|
|
// Set params on all processors
|
|
// FIXME: Undefined behavior if the processors are currently working, this may need to be delayed like the
|
|
// recompile signal
|
|
foreach (RenderWorker* worker, processors_) {
|
|
static_cast<AudioRenderWorker*>(worker)->SetParameters(params_);
|
|
}
|
|
|
|
// Regenerate the cache ID
|
|
RegenerateCacheID();
|
|
}
|
|
|
|
void AudioRenderBackend::InvalidateCache(const rational &start_range, const rational &end_range)
|
|
{
|
|
if (!params_.is_valid()) {
|
|
return;
|
|
}
|
|
|
|
RenderBackend::InvalidateCache(start_range, end_range);
|
|
|
|
rational start_range_adj = qMax(rational(0), start_range);
|
|
rational end_range_adj = qMin(GetSequenceLength(), end_range);
|
|
|
|
// Add the range to the list
|
|
cache_queue_.append(TimeRange(start_range_adj, end_range_adj));
|
|
|
|
// Remove any overlaps so we don't render the same thing twice
|
|
ValidateRanges();
|
|
|
|
// Queue value update
|
|
QueueValueUpdate();
|
|
|
|
// Start caching cycle if it hasn't started already
|
|
CacheNext();
|
|
}
|
|
|
|
void AudioRenderBackend::ConnectViewer(ViewerOutput *node)
|
|
{
|
|
connect(node, SIGNAL(AudioChangedBetween(const rational&, const rational&)), this, SLOT(InvalidateCache(const rational&, const rational&)));
|
|
connect(node, SIGNAL(AudioGraphChanged()), this, SLOT(QueueRecompile()));
|
|
|
|
// FIXME: Hardcoded format, though I doubt this will change any time soon (maybe we'll shift to DBL at some point)
|
|
SetParameters(AudioRenderingParams(node->audio_params(), SAMPLE_FMT_FLT));
|
|
}
|
|
|
|
void AudioRenderBackend::DisconnectViewer(ViewerOutput *node)
|
|
{
|
|
disconnect(node, SIGNAL(AudioChangedBetween(const rational&, const rational&)), this, SLOT(InvalidateCache(const rational&, const rational&)));
|
|
disconnect(node, SIGNAL(AudioGraphChanged()), this, SLOT(QueueRecompile()));
|
|
}
|
|
|
|
bool AudioRenderBackend::GenerateCacheIDInternal(QCryptographicHash &hash)
|
|
{
|
|
if (!params_.is_valid()) {
|
|
return false;
|
|
}
|
|
|
|
// Generate an ID that is more or less guaranteed to be unique to this Sequence
|
|
hash.addData(QString::number(params_.sample_rate()).toUtf8());
|
|
hash.addData(QString::number(params_.channel_layout()).toUtf8());
|
|
hash.addData(QString::number(params_.format()).toUtf8());
|
|
|
|
return true;
|
|
}
|
|
|
|
const AudioRenderingParams &AudioRenderBackend::params()
|
|
{
|
|
return params_;
|
|
}
|
|
|
|
NodeInput *AudioRenderBackend::GetDependentInput()
|
|
{
|
|
return viewer_node()->samples_input();
|
|
}
|
|
|
|
void AudioRenderBackend::ValidateRanges()
|
|
{
|
|
for (int i=0;i<cache_queue_.size();i++) {
|
|
const TimeRange& range1 = cache_queue_.at(i);
|
|
|
|
for (int j=0;j<cache_queue_.size();j++) {
|
|
const TimeRange& range2 = cache_queue_.at(j);
|
|
|
|
if (TimeRange::Overlap(range1, range2) && i != j) {
|
|
// Combine with the first range
|
|
cache_queue_[i] = TimeRange::Combine(range1, range2);
|
|
|
|
// Remove the second range
|
|
cache_queue_.removeAt(j);
|
|
j--;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
QString AudioRenderBackend::CachePathName()
|
|
{
|
|
QDir this_cache_dir = QDir(GetMediaCacheLocation()).filePath(cache_id());
|
|
this_cache_dir.mkpath(".");
|
|
|
|
return this_cache_dir.filePath(QStringLiteral("pcm"));
|
|
}
|