Allow changing of MXF directory / filename; un-expose ASDCP frame buffer classes...

[libdcp.git] / src / sound_asset.h

diff --git a/src/sound_asset.h b/src/sound_asset.h
index 6e85a407a089ec117ac584fe38f6f4398ace2ea3..ad350ce59561229ab1bc87dfb34b55842f068fad 100644 (file)
--- a/src/sound_asset.h
+++ b/src/sound_asset.h
@@ -21,64 +21,133 @@
 #define LIBDCP_SOUND_ASSET_H
 
 /** @file  src/sound_asset.h
- *  @brief An asset made up of WAV files
+ *  @brief An asset made up of PCM audio data files
  */
 
-#include "asset.h"
+#include "mxf_asset.h"
 #include "types.h"
 
 namespace libdcp
 {
 
+class SoundFrame;
+
+class SoundAsset;
+
+class SoundAssetWriter
+{
+public:
+       ~SoundAssetWriter ();
+
+       void write (float const * const *, int);
+       void finalize ();
+
+private:
+       friend class SoundAsset;
+
+       SoundAssetWriter (SoundAsset *);
+
+       /* no copy construction */
+       SoundAssetWriter (SoundAssetWriter const &);
+       SoundAssetWriter& operator= (SoundAssetWriter const &);
+       
+       void write_current_frame ();
+
+       /* do this with an opaque pointer so we don't have to include
+          ASDCP headers
+       */
+          
+       struct ASDCPState;
+       boost::shared_ptr<ASDCPState> _state;
+
+       SoundAsset* _asset;
+       bool _finalized;
+       int _frames_written;
+       int _frame_buffer_offset;
+};
+
 /** @brief An asset made up of WAV files */
-class SoundAsset : public Asset
+class SoundAsset : public MXFAsset
 {
 public:
-       /** Construct a SoundAsset, generating the MXF from the WAV files.
+       /** Construct a SoundAsset, generating the MXF from some WAV files.
         *  This may take some time; progress is indicated by emission of the Progress signal.
         *  @param files Pathnames of sound files, in the order Left, Right, Centre, Lfe (sub), Left surround, Right surround.
-        *  @param mxf_path Pathname of MXF file to create.
+        *  @param directory Directory in which to create MXF file.
+        *  @param mxf_name Name of MXF file to create.
         *  @param progress Signal to inform of progress.
         *  @param fps Frames per second.
-        *  @param length Length in frames.
+        *  @param intrinsic_duration Length of the whole asset in frames.
+        *  Note that this is different to entry_point in that the asset will contain no data before start_frame.
         */
        SoundAsset (
                std::vector<std::string> const & files,
-               std::string mxf_path,
-               sigc::signal1<void, float>* progress,
+               std::string directory,
+               std::string mxf_name,
+               boost::signals2::signal<void (float)>* progress,
                int fps,
-               int length
+               int intrinsic_duration
                );
 
-       /** Construct a SoundAsset, generating the MXF from the WAV files.
+       /** Construct a SoundAsset, generating the MXF from some WAV files.
         *  This may take some time; progress is indicated by emission of the Progress signal.
         *  @param get_path Functor which returns a WAV file path for a given channel.
-        *  @param mxf_path Pathname of MXF file to create.
+        *  @param directory Directory in which to create MXF file.
+        *  @param mxf_name Name of MXF file to create.
         *  @param progress Signal to inform of progress.
         *  @param fps Frames per second.
-        *  @param length Length in frames.
+        *  @param intrinsic_duration Length of the whole asset in frames.
         *  @param channels Number of audio channels.
         */
        SoundAsset (
-               sigc::slot<std::string, Channel> get_path,
-               std::string mxf_path,
-               sigc::signal1<void, float>* progress,
+               boost::function<std::string (Channel)> get_path,
+               std::string directory,
+               std::string mxf_name,
+               boost::signals2::signal<void (float)>* progress,
                int fps,
-               int length,
+               int intrinsic_duration,
                int channels
                );
+
+       SoundAsset (
+               std::string directory,
+               std::string mxf_name
+               );
+
+       SoundAsset (
+               std::string directory,
+               std::string mxf_name,
+               int fps,
+               int channels,
+               int sampling_rate
+               );
+
+       boost::shared_ptr<SoundAssetWriter> start_write ();
        
        /** Write details of this asset to a CPL stream.
         *  @param s Stream.
         */
        void write_to_cpl (std::ostream& s) const;
 
+       bool equals (boost::shared_ptr<const Asset> other, EqualityOptions opt, std::list<std::string>& notes) const;
+
+       boost::shared_ptr<const SoundFrame> get_frame (int n) const;
+       
+       int channels () const {
+               return _channels;
+       }
+
+       int sampling_rate () const {
+               return _sampling_rate;
+       }
+
 private:
-       void construct (sigc::slot<std::string, Channel> get_path);
+       void construct (boost::function<std::string (Channel)> get_path);
        std::string path_from_channel (Channel channel, std::vector<std::string> const & files);
 
        /** Number of channels in the asset */
        int _channels;
+       int _sampling_rate;
 };
 
 }