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loadotio.cpp
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loadotio.cpp
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/***
Olive - Non-Linear Video Editor
Copyright (C) 2022 Olive Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
#include "loadotio.h"
#ifdef USE_OTIO
#include <opentimelineio/clip.h>
#include <opentimelineio/externalReference.h>
#include <opentimelineio/gap.h>
#include <opentimelineio/serializableCollection.h>
#include <opentimelineio/timeline.h>
#include <opentimelineio/transition.h>
#include <QApplication>
#include <QFileInfo>
#include <QThread>
#include "core.h"
#include "node/audio/volume/volume.h"
#include "node/block/clip/clip.h"
#include "node/block/gap/gap.h"
#include "node/block/transition/crossdissolve/crossdissolvetransition.h"
#include "node/distort/transform/transformdistortnode.h"
#include "node/generator/matrix/matrix.h"
#include "node/math/math/math.h"
#include "node/nodeundo.h"
#include "node/project/folder/folder.h"
#include "node/project/footage/footage.h"
#include "node/project/sequence/sequence.h"
#include "timeline/timelineundogeneral.h"
#include "window/mainwindow/mainwindowundo.h"
namespace olive {
LoadOTIOTask::LoadOTIOTask(const QString& s) :
ProjectLoadBaseTask(s)
{
}
bool LoadOTIOTask::Run()
{
OTIO::ErrorStatus es;
auto root = OTIO::SerializableObjectWithMetadata::from_json_file(GetFilename().toStdString(), &es);
if (es.outcome != OTIO::ErrorStatus::Outcome::OK) {
SetError(tr("Failed to load OpenTimelineIO from file \"%1\" \n\nOpenTimelineIO Error:\n\n%2")
.arg(GetFilename(), QString::fromStdString(es.full_description)));
return false;
}
project_ = new Project();
project_->Initialize();
project_->set_modified(true);
std::vector<OTIO::Timeline*> timelines;
if (root->schema_name() == "SerializableCollection") {
// This is a number of timelines
std::vector<OTIO::SerializableObject::Retainer<OTIO::SerializableObject>>& root_children = static_cast<OTIO::SerializableCollection*>(root)->children();
timelines.resize(root_children.size());
for (size_t j=0; j<root_children.size(); j++) {
timelines[j] = static_cast<OTIO::Timeline*>(root_children[j].value);
}
} else if (root->schema_name() == "Timeline") {
// This is a single timeline
timelines.push_back(static_cast<OTIO::Timeline*>(root));
} else {
// Unknown root, we don't know what to do with this
SetError(tr("Unknown OpenTimelineIO root element"));
return false;
}
// Keep track of imported footage
QMap<QString, Footage*> imported_footage;
QMap<OTIO::Timeline*, Sequence*> timeline_sequnce_map;
// Variables used for loading bar
float number_of_clips = 0;
float clips_done = 0;
// Generate a list of sequences with the same names as the timelines.
// Assumes each timeline has a unique name.
int unnamed_sequence_count = 0;
foreach (auto timeline, timelines) {
Sequence* sequence = new Sequence();
if (!timeline->name().empty()) {
sequence->SetLabel(QString::fromStdString(timeline->name()));
} else {
// If the otio timeline does not provide a name, create a default one here
unnamed_sequence_count++;
QString label = tr("Sequence %1").arg(unnamed_sequence_count);
sequence->SetLabel(QString::fromStdString(label.toStdString()));
}
// Set default params incase they aren't edited.
sequence->set_default_parameters();
timeline_sequnce_map.insert(timeline, sequence);
// Get number of clips for loading bar
foreach (auto track, timeline->tracks()->children()) {
auto otio_track = static_cast<OTIO::Track*>(track.value);
number_of_clips += otio_track->children().size();
}
}
// Dialog has to be called from the main thread so we pass the list of sequences here.
bool accepted = false;
QMetaObject::invokeMethod(Core::instance(),
"DialogImportOTIOShow",
Qt::BlockingQueuedConnection,
Q_RETURN_ARG(bool, accepted),
Q_ARG(QList<Sequence*>,timeline_sequnce_map.values()));
if (!accepted) {
// Cancel to indicate to caller that this task did not complete and to simply dispose of it
Cancel();
qDeleteAll(timeline_sequnce_map); // Clear sequences
return true;
}
foreach (auto timeline, timeline_sequnce_map.keys()) {
Sequence* sequence = timeline_sequnce_map.value(timeline);
sequence->setParent(project_);
FolderAddChild(project_->root(), sequence).redo_now();
// Create a folder for this sequence's footage
Folder* sequence_footage = new Folder();
sequence_footage->SetLabel(QString::fromStdString(timeline->name()));
sequence_footage->setParent(project_);
FolderAddChild(project_->root(), sequence_footage).redo_now();
// Iterate through tracks
for (auto c : timeline->tracks()->children()) {
auto otio_track = static_cast<OTIO::Track*>(c.value);
// Create a new track
Track* track = nullptr;
// Determine what kind of track it is
if (otio_track->kind() == "Video" || otio_track->kind() == "Audio") {
Track::Type type;
if (otio_track->kind() == "Video") {
type = Track::kVideo;
} else {
type = Track::kAudio;
}
// Create track
TimelineAddTrackCommand t(sequence->track_list(type));
t.redo_now();
track = t.track();
} else {
qWarning() << "Found unknown track type:" << otio_track->kind().c_str();
continue;
}
// Get clips from track
auto clip_map = otio_track->children();
if (es.outcome != OTIO::ErrorStatus::Outcome::OK) {
SetError(tr("Failed to load clip"));
return false;
}
Block* previous_block = nullptr;
bool prev_block_transition = false;
for (auto otio_block_retainer : clip_map) {
auto otio_block = otio_block_retainer.value;
Block* block = nullptr;
if (otio_block->schema_name() == "Clip") {
block = new ClipBlock();
} else if (otio_block->schema_name() == "Gap") {
block = new GapBlock();
} else if (otio_block->schema_name() == "Transition") {
// Todo: Look into OTIO supported transitions and add them to Olive
block = new CrossDissolveTransition();
} else {
// We don't know what this is yet, just create a gap for now so that *something* is there
qWarning() << "Found unknown block type:" << otio_block->schema_name().c_str();
block = new GapBlock();
}
block->setParent(project_);
block->SetLabel(QString::fromStdString(otio_block->name()));
track->AppendBlock(block);
rational start_time;
rational duration;
if (otio_block->schema_name() == "Clip" || otio_block->schema_name() == "Gap") {
start_time =
rational::fromDouble(static_cast<OTIO::Item*>(otio_block)->source_range()->start_time().to_seconds());
duration =
rational::fromDouble(static_cast<OTIO::Item*>(otio_block)->source_range()->duration().to_seconds());
if (otio_block->schema_name() == "Clip") {
static_cast<ClipBlock*>(block)->set_media_in(start_time);
}
block->set_length_and_media_out(duration);
}
// If the previous block was a transition, connect the current block to it
if (prev_block_transition) {
TransitionBlock* previous_transition_block = static_cast<TransitionBlock*>(previous_block);
Node::ConnectEdge(block, NodeInput(previous_transition_block, TransitionBlock::kInBlockInput));
prev_block_transition = false;
}
if (otio_block->schema_name() == "Transition") {
TransitionBlock* transition_block = static_cast<TransitionBlock*>(block);
OTIO::Transition* otio_block_transition = static_cast<OTIO::Transition*>(otio_block);
// Set how far the transition eats into the previous clip
transition_block->set_offsets_and_length(rational::fromRationalTime(otio_block_transition->in_offset()), rational::fromRationalTime(otio_block_transition->out_offset()));
if (previous_block) {
Node::ConnectEdge(previous_block, NodeInput(transition_block, TransitionBlock::kOutBlockInput));
}
prev_block_transition = true;
// Add nodes to the graph and set up contexts
block->setParent(sequence->parent());
// Position transition in its own context
block->SetNodePositionInContext(block, QPointF(0, 0));
}
if (otio_block->schema_name() == "Gap") {
// Add nodes to the graph and set up contexts
block->setParent(sequence->parent());
// Position transition in its own context
block->SetNodePositionInContext(block, QPointF(0, 0));
}
// Update this after it's used but before any continue statements
previous_block = block;
if (otio_block->schema_name() == "Clip") {
auto otio_clip = static_cast<OTIO::Clip*>(otio_block);
if (!otio_clip->media_reference()) {
continue;
}
if (otio_clip->media_reference()->schema_name() == "ExternalReference") {
// Link footage
QString footage_url = QString::fromStdString(static_cast<OTIO::ExternalReference*>(otio_clip->media_reference())->target_url());
Footage* probed_item;
if (imported_footage.contains(footage_url)) {
probed_item = imported_footage.value(footage_url);
} else {
probed_item = new Footage(footage_url);
imported_footage.insert(footage_url, probed_item);
probed_item->setParent(project_);
QFileInfo info(probed_item->filename());
probed_item->SetLabel(info.fileName());
FolderAddChild add(sequence_footage, probed_item);
add.redo_now();
}
// Add nodes to the graph and set up contexts
block->setParent(sequence->parent());
// Position clip in its own context
block->SetNodePositionInContext(block, QPointF(0, 0));
// Position footage in its context
block->SetNodePositionInContext(probed_item, QPointF(-2, 0));
if (track->type() == Track::kVideo) {
TransformDistortNode* transform = new TransformDistortNode();
transform->setParent(sequence->parent());
Node::ConnectEdge(probed_item, NodeInput(transform, TransformDistortNode::kTextureInput));
Node::ConnectEdge(transform, NodeInput(block, ClipBlock::kBufferIn));
block->SetNodePositionInContext(transform, QPointF(-1, 0));
} else {
VolumeNode* volume_node = new VolumeNode();
volume_node->setParent(sequence->parent());
Node::ConnectEdge(probed_item, NodeInput(volume_node, VolumeNode::kSamplesInput));
Node::ConnectEdge(volume_node, NodeInput(block, ClipBlock::kBufferIn));
block->SetNodePositionInContext(volume_node, QPointF(-1, 0));
}
}
}
clips_done++;
emit ProgressChanged(clips_done / number_of_clips);
}
}
}
project_->moveToThread(qApp->thread());
return true;
}
}
#endif // USE_OTIO