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viewer: implement lookahead to ensure footage is ready in advance

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This commit is contained in:
itsmattkc
2022-07-26 14:49:19 -07:00
parent d1ec2b909b
commit 25e94112f8
9 changed files with 137 additions and 62 deletions
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app/render/previewautocacher.cpp
+8 -5
View File
@@ -61,7 +61,7 @@ PreviewAutoCacher::~PreviewAutoCacher()
SetViewerNode(nullptr);
}
RenderTicketPtr PreviewAutoCacher::GetSingleFrame(const rational &t)
RenderTicketPtr PreviewAutoCacher::GetSingleFrame(const rational &t, bool dry)
{
// If we have a single frame render queued (but not yet sent to the RenderManager), cancel it now
CancelQueuedSingleFrameRender();
@@ -70,6 +70,7 @@ RenderTicketPtr PreviewAutoCacher::GetSingleFrame(const rational &t)
auto sfr = std::make_shared<RenderTicket>();
sfr->Start();
sfr->setProperty("time", QVariant::fromValue(t));
sfr->setProperty("dry", dry);
// Queue it and try to render
single_frame_render_ = sfr;
@@ -566,7 +567,8 @@ void PreviewAutoCacher::TryRender()
if (single_frame_render_) {
// Check if already caching this
RenderTicketWatcher *watcher = RenderFrame(single_frame_render_->property("time").value<rational>(),
nullptr);
nullptr,
single_frame_render_->property("dry").toBool());
video_immediate_passthroughs_[watcher].append(single_frame_render_);
single_frame_render_ = nullptr;
@@ -583,7 +585,7 @@ void PreviewAutoCacher::TryRender()
// We want this hash, if we're not already rendering, start render now
if (!render_task) {
// Don't render any hash more than once
RenderFrame(t, viewer_node_->video_frame_cache());
RenderFrame(t, viewer_node_->video_frame_cache(), false);
}
emit SignalCacheProxyTaskProgress(double(queued_frame_iterator_.frame_index()) / double(queued_frame_iterator_.size()));
@@ -609,7 +611,7 @@ void PreviewAutoCacher::TryRender()
}
}
RenderTicketWatcher* PreviewAutoCacher::RenderFrame(Node *node, const rational& time, FrameHashCache *cache)
RenderTicketWatcher* PreviewAutoCacher::RenderFrame(Node *node, const rational& time, FrameHashCache *cache, bool dry)
{
RenderTicketWatcher* watcher = new RenderTicketWatcher();
watcher->setProperty("job", QVariant::fromValue(last_update_time_));
@@ -623,7 +625,8 @@ RenderTicketWatcher* PreviewAutoCacher::RenderFrame(Node *node, const rational&
time,
RenderMode::kOffline,
cache,
RenderManager::kTexture));
dry ? RenderManager::kNull : RenderManager::kTexture));
return watcher;
}