LIB: Add the VideoContext to the VideoSubDocument

src/Lib/Document/CRTPSubDocument.hh

@@ -7,6 +7,7 @@
 
 #include "../Utils.hh"
 #include "../Audio.hh"
+#include "../Video.hh"
 #include "../Ass/Ass.hh"
 
 namespace Vivy
@@ -52,17 +53,14 @@ public:
 
 // Audio document
 class AudioSubDocument final : public CRTPSubDocument<AudioDocumentType, AudioSubDocument> {
-private:
     const QStringList &suffixList = Vivy::Utils::audioFileSuffix;
+    std::unique_ptr<AudioContext> contextPtr{ nullptr };
 
     void initFromPath(const QString &);
 
     explicit AudioSubDocument() = default;
     friend CRTPSubDocument<AudioDocumentType, AudioSubDocument>;
 
-private:
-    std::unique_ptr<AudioContext> contextPtr;
-
 public:
     int getDefaultStreamIndex() const noexcept;
     AudioContext::StreamPtr getDefaultStream() const noexcept;
@@ -74,8 +72,8 @@ public:
 
 // Video document
 class VideoSubDocument final : public CRTPSubDocument<VideoDocumentType, VideoSubDocument> {
-private:
     const QStringList &suffixList = Vivy::Utils::videoFileSuffix;
+    std::unique_ptr<VideoContext> contextPtr{ nullptr };
 
     void initFromPath(const QString &);
 
@@ -83,6 +81,10 @@ private:
     friend CRTPSubDocument<VideoDocumentType, VideoSubDocument>;
 
 public:
+    int getDefaultStreamIndex() const noexcept;
+    VideoContext::StreamPtr getDefaultStream() const noexcept;
+    VideoContext::StreamPtr getStream(int index) const noexcept;
+
     QString getElementName() const noexcept;
     QJsonDocument getProperties() const noexcept;
 };

src/Lib/Document/CRTPSubDocument/VideoSubDocument.cc

@@ -2,10 +2,49 @@
 
 using namespace Vivy;
 
+// Get the default stream index or -1 if not possible
+int
+VideoSubDocument::getDefaultStreamIndex() const noexcept
+{
+    if (auto ptr = getDefaultStream()) {
+        return ptr->getStreamIndex();
+    } else {
+        return -1;
+    }
+}
+
+// Get a pointer to the default stream, nullptr if not possible
+VideoContext::StreamPtr
+VideoSubDocument::getDefaultStream() const noexcept
+{
+    if (auto ptr = contextPtr->getDefaultStream().lock()) {
+        return ptr;
+    } else {
+        qCritical() << "Document deleted!";
+        return nullptr;
+    }
+}
+
+// Get the stream asked for, nullptr if no stream or if the index is invalid
+VideoContext::StreamPtr
+VideoSubDocument::getStream(int index) const noexcept
+{
+    if (auto ptr = contextPtr->getStream(index).lock()) {
+        return ptr;
+    } else {
+        return nullptr;
+    }
+}
+
 // Init a video sub-document from a file
 void
-VideoSubDocument::initFromPath(const QString &)
+VideoSubDocument::initFromPath(const QString &path)
 {
+    if (contextPtr)
+        qDebug() << "Replacing the video contetx by a new one for file" << path;
+    contextPtr.reset(new VideoContext(path)); // May throw
+
+    qDebug() << "Video OK for" << path;
 }
 
 QString
@@ -18,7 +57,10 @@ QJsonDocument
 VideoSubDocument::getProperties() const noexcept
 {
     QJsonDocument ret;
-    QJsonObject object;
+    QJsonObject object{
+        { "Video context", contextPtr->getProperties().object() },
+        { "File", filePath },
+    };
     ret.setObject(object);
     return ret;
 }