itsmattkc
7f796bd99f
frames Previously, when the video renderer received a dirty cache signal, it would proceed to extract all frames from the range and queue them. However, this could be extremely slow for long ranges since it had to iterate through the entire range and calculate the individual frames it contained. Now, we use the same range combining system as audio and automatically calculate the next frame within the range only when necessary. Essentially the same work, but split up over time and done only when needed leading to no discernible UI pause when invalidating cache.
78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
#include "audiorenderbackend.h"
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#include <QDir>
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#include <QtMath>
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#include "audiorenderworker.h"
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#include "common/filefunctions.h"
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AudioRenderBackend::AudioRenderBackend(QObject *parent) :
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RenderBackend(parent)
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{
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}
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void AudioRenderBackend::SetParameters(const AudioRenderingParams ¶ms)
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{
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// Set new parameters
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params_ = params;
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// Set params on all processors
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// FIXME: Undefined behavior if the processors are currently working, this may need to be delayed like the
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// recompile signal
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foreach (RenderWorker* worker, processors_) {
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static_cast<AudioRenderWorker*>(worker)->SetParameters(params_);
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}
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// Regenerate the cache ID
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RegenerateCacheID();
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}
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void AudioRenderBackend::ConnectViewer(ViewerOutput *node)
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{
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connect(node, SIGNAL(AudioChangedBetween(const rational&, const rational&)), this, SLOT(InvalidateCache(const rational&, const rational&)));
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connect(node, SIGNAL(AudioGraphChanged()), this, SLOT(QueueRecompile()));
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}
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void AudioRenderBackend::DisconnectViewer(ViewerOutput *node)
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{
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disconnect(node, SIGNAL(AudioChangedBetween(const rational&, const rational&)), this, SLOT(InvalidateCache(const rational&, const rational&)));
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disconnect(node, SIGNAL(AudioGraphChanged()), this, SLOT(QueueRecompile()));
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}
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bool AudioRenderBackend::GenerateCacheIDInternal(QCryptographicHash &hash)
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{
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if (!params_.is_valid()) {
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return false;
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}
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// Generate an ID that is more or less guaranteed to be unique to this Sequence
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hash.addData(QString::number(params_.sample_rate()).toUtf8());
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hash.addData(QString::number(params_.channel_layout()).toUtf8());
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hash.addData(QString::number(params_.format()).toUtf8());
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return true;
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}
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const AudioRenderingParams &AudioRenderBackend::params()
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{
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return params_;
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}
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NodeInput *AudioRenderBackend::GetDependentInput()
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{
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return viewer_node()->samples_input();
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}
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QString AudioRenderBackend::CachePathName()
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{
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QDir this_cache_dir = QDir(GetMediaCacheLocation()).filePath(cache_id());
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this_cache_dir.mkpath(".");
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return this_cache_dir.filePath(QStringLiteral("pcm"));
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}
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bool AudioRenderBackend::CanRender()
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{
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return params_.is_valid();
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}
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