otio: implemented some basic import/export functionality

Certainly not complete, but mild import/export capability.
2020-09-27 00:39:51 +10:00
parent 6db591e89f
commit b220dd88e7
4 changed files with 223 additions and 60 deletions
@@ -20,8 +20,14 @@

 #include "otiodecoder.h"

+#include <opentimelineio/clip.h>
+#include <opentimelineio/externalReference.h>
 #include <opentimelineio/timeline.h>

+#include "node/block/clip/clip.h"
+#include "node/block/gap/gap.h"
+#include "project/item/sequence/sequence.h"
+
 OLIVE_NAMESPACE_ENTER

 OTIODecoder::OTIODecoder()
@@ -45,7 +51,70 @@ ItemPtr OTIODecoder::Probe(const QString& filename, const QAtomicInt* cancelled)
      return nullptr;
    }

-    qDebug() << "Found" << timeline->video_tracks().size() << "video tracks";
+    SequencePtr sequence = std::make_shared<Sequence>();
+
+    // FIXME: As far as I know, OTIO doesn't store video/audio parameters?
+    sequence->set_default_parameters();
+
+    sequence->set_name(QString::fromStdString(timeline->name()));
+
+    for (auto c : timeline->tracks()->children()) {
+      auto otio_track = static_cast<opentimelineio::v1_0::Track*>(c.value);
+
+      // Create a new track
+      TrackOutput* track = nullptr;
+
+      // Determine what kind of track it is
+      if (otio_track->kind() == "Video") {
+        track = sequence->viewer_output()->track_list(Timeline::kTrackTypeVideo)->AddTrack();
+      } else if (otio_track->kind() == "Audio") {
+        track = sequence->viewer_output()->track_list(Timeline::kTrackTypeAudio)->AddTrack();
+      } else {
+        qWarning() << "Found unknown track type:" << otio_track->kind().c_str();
+        continue;
+      }
+
+      // Get clips from track
+      std::map<opentimelineio::v1_0::Composable*, opentimelineio::v1_0::TimeRange> clip_map = otio_track->range_of_all_children(&es);
+      if (es != opentimelineio::v1_0::ErrorStatus::OK) {
+        return nullptr;
+      }
+
+      for (auto it=clip_map.cbegin(); it!=clip_map.cend(); it++) {
+
+        Block* block = nullptr;
+
+        if (it->first->schema_name() == "Clip") {
+
+          block = new ClipBlock();
+
+          auto otio_clip = static_cast<opentimelineio::v1_0::Clip*>(it->first);
+
+          /*
+          if (otio_clip->media_reference()->schema_name() == "ExternalReference") {
+            QString footage_url = QString::fromStdString(static_cast<opentimelineio::v1_0::ExternalReference*>(otio_clip->media_reference())->target_url());
+            ItemPtr footage = Decoder::ProbeMedia(footage_url, cancelled);
+
+          }
+          */
+
+        } else if (it->first->schema_name() == "Gap") {
+
+          block = new GapBlock();
+
+        } else {
+          qWarning() << "Found unknown block type:" << it->first->schema_name().c_str();
+        }
+
+        block->SetLabel(QString::fromStdString(it->first->name()));
+        block->set_length_and_media_out(rational::fromDouble(it->second.duration().to_seconds()));
+        sequence->AddNode(block);
+        track->AppendBlock(block);
+
+      }
+    }
+
+    return sequence;
  }

  return nullptr;