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audiobackend: truncate PCM cache size when the length is reduced

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This commit is contained in:
itsmattkc
2020-03-18 19:08:18 +11:00
parent 6ddfd2fc8e
commit 7771bab5a0
3 changed files with 16 additions and 0 deletions
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app/render/backend/audiorenderbackend.cpp
+13
View File
@@ -36,12 +36,14 @@ void AudioRenderBackend::ConnectViewer(ViewerOutput *node)
{
connect(node, &ViewerOutput::AudioChangedBetween, this, &AudioRenderBackend::InvalidateCache);
connect(node, &ViewerOutput::AudioGraphChanged, this, &AudioRenderBackend::QueueRecompile);
connect(node, &ViewerOutput::LengthChanged, this, &AudioRenderBackend::TruncateCache);
}
void AudioRenderBackend::DisconnectViewer(ViewerOutput *node)
{
disconnect(node, &ViewerOutput::AudioChangedBetween, this, &AudioRenderBackend::InvalidateCache);
disconnect(node, &ViewerOutput::AudioGraphChanged, this, &AudioRenderBackend::QueueRecompile);
disconnect(node, &ViewerOutput::LengthChanged, this, &AudioRenderBackend::TruncateCache);
}
bool AudioRenderBackend::CompileInternal()
@@ -192,6 +194,17 @@ void AudioRenderBackend::ConformUpdated(Stream *stream, const AudioRenderingPara
}
}
void AudioRenderBackend::TruncateCache(const rational &r)
{
int seq_length = params_.time_to_bytes(r);
QFile cache_pcm(CachePathName());
if (cache_pcm.size() > seq_length) {
cache_pcm.resize(seq_length);
}
}
bool AudioRenderBackend::ConformWaitInfo::operator==(const AudioRenderBackend::ConformWaitInfo &rhs) const
{
return rhs.params == params