Fix bad frees if exceptions are thrown by constructors.

[libdcp.git] / src / mxf_asset.h

diff --git a/src/mxf_asset.h b/src/mxf_asset.h
index 35509311d932c1c96f6d34bfb2f0a1ea19990dce..d681970eb24291281c22944753ead1c577127792 100644 (file)
--- a/src/mxf_asset.h
+++ b/src/mxf_asset.h
@@ -20,39 +20,95 @@
 #ifndef LIBDCP_MXF_ASSET_H
 #define LIBDCP_MXF_ASSET_H
 
+#include <boost/signals2.hpp>
 #include "asset.h"
+#include "key.h"
+
+namespace ASDCP {
+       class AESEncContext;
+       class AESDecContext;
+}
 
 namespace libdcp
 {
 
+class MXFMetadata;     
+
+/** @brief Parent class for assets which have MXF files */     
 class MXFAsset : public Asset
 {
 public:
        /** Construct an MXFAsset.
+        *  This class will not write anything to disk in this constructor, but subclasses may.
+        *
         *  @param directory Directory where MXF file is.
-        *  @param mxf_name Name of MXF file.
-        *  @param progress Signal to inform of progress.
-        *  @param fps Frames per second.
-        *  @param length Length in frames.
+        *  @param file_name Name of MXF file.
         */
-       MXFAsset (std::string directory, std::string mxf_path, sigc::signal1<void, float>* progress, int fps, int length);
-
-       virtual std::list<std::string> equals (boost::shared_ptr<const Asset> other, EqualityOptions opt) const;
+       MXFAsset (std::string directory, std::string file_name);
        
-       int length () const;
+       /** Construct an MXFAsset.
+        *  This class will not write anything to disk in this constructor, but subclasses may.
+        *
+        *  @param directory Directory where MXF file is.
+        *  @param file_name Name of MXF file.
+        *  @param progress Signal to use to inform of progress, or 0.
+        *  @param edit_rate Edit rate in frames per second (usually equal to the video frame rate).
+        *  @param intrinsic_duration Duration of the whole asset in frames.
+        */
+       MXFAsset (
+               std::string directory,
+               std::string file_name,
+               boost::signals2::signal<void (float)>* progress,
+               int edit_rate,
+               int intrinsic_duration
+               );
+
+       ~MXFAsset ();
+
+       virtual bool equals (boost::shared_ptr<const Asset> other, EqualityOptions opt, boost::function<void (NoteType, std::string)> note) const;
+
+       virtual void write_to_cpl (xmlpp::Element *, bool interop) const;
 
-protected:
        /** Fill in a ADSCP::WriteInfo struct.
         *  @param w struct to fill in.
+        *  @param uuid uuid to use.
+        *  @param true to label as interop, false for SMPTE.
         */
-       void fill_writer_info (ASDCP::WriterInfo* w) const;
-
-       /** Signal to emit to report progress */
-       sigc::signal1<void, float>* _progress;
-       /** Frames per second */
-       int _fps;
-       /** Length in frames */
-       int _length;
+       void fill_writer_info (ASDCP::WriterInfo* w, std::string uuid, bool interop, MXFMetadata const & metadata);
+
+       void add_typed_key_id (xmlpp::Element *) const;
+
+       bool encrypted () const {
+               return !_key_id.empty ();
+       }
+
+       void set_key_id (std::string i) {
+               _key_id = i;
+       }
+
+       std::string key_id () const {
+               return _key_id;
+       }
+       
+       void set_key (Key);
+
+       boost::optional<Key> key () const {
+               return _key;
+       }
+       
+protected:
+       virtual std::string key_type () const = 0;
+       virtual std::string cpl_node_name () const = 0;
+       virtual std::pair<std::string, std::string> cpl_node_attribute (bool) const {
+               return std::make_pair ("", "");
+       }
+       
+       /** Signal to emit to report progress, or 0 */
+       boost::signals2::signal<void (float)>* _progress;
+       ASDCP::AESEncContext* _encryption_context;
+       ASDCP::AESDecContext* _decryption_context;
+       std::string _key_id;
+       boost::optional<Key> _key;
 };
 
 }