comparison src/Modules/Input/ModuleFileInput.h @ 3:decdac21cfc2

- Imported file input using libsndfile from old AIM-C and updated to the new API
- Modified the Module base class to propogate Reset() calls down the module chain.
-  This required changing all Reset() functions in subclasses to ResetInternal()
- Removed some unneeded imports from the Gaussians test

+// Copyright 2006-2010, Willem van Engen, Thomas Walters
+//
+// AIM-C: A C++ implementation of the Auditory Image Model
+// http://www.acousticscale.org/AIMC
+//
+// 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/>.
+
+/*! \file
+ *  \brief Audio file input
+ *
+ *  \author Willem van Engen <[e-mail]>
+ *  \author Thomas Walters <[e-mail]>
+ *  \date created 2006/09/21
+ *  \version \$Id$
+ */
+
+#ifndef _AIMC_MODULES_INPUT_FILE_H_
+#define _AIMC_MODULES_INPUT_FILE_H_
+
+#include <sndfile.h>
+
+#include "Support/Module.h"
+#include "Support/Parameters.h"
+#include "Support/SignalBank.h"
+
+namespace aimc {
+class ModuleFileInput : public Module {
+ public:
+	ModuleFileInput(Parameters *pParam);
+	virtual ~ModuleFileInput();
+
+	/*! \brief Initializes this input device using an audio file
+	 *  \param sFilename Path of the file to load
+	 *  \return true on success, false on error
+	 */
+	bool LoadFile(const char *sFilename);
+
+  //! \brief Process the loaded file.
+  void Process();
+
+  //! \brief Dummy Initialize function. Call LoadFile instead.
+  virtual bool Initialize(const SignalBank &input);
+
+  //! \brief Dummy funciton to comply with the Module specification. Gives an 
+  //  error message when called.
+  virtual void Process(const SignalBank &input);
+
+ private:
+  //! \brief Prepare the module
+  //! \param input Input SignalBank
+  //! \param output true on success false on failure
+  virtual bool InitializeInternal(const SignalBank &input);
+
+  //! \brief Rewind to the start of the file
+  virtual void ResetInternal();
+
+	//! \brief File descriptor
+	SNDFILE *file_handle_;
+
+	//! \brief Current position in time of the file
+  int file_position_samples_;
+  bool file_loaded_;
+  int audio_channels_;
+  int buffer_length_;
+  float sample_rate_;
+};
+}  // namespace aimc
+
+#endif // _AIMC_MODULES_INPUT_FILE_H_