comparison src/Modules/Output/FileOutputJSON.h @ 607:49eef19e4f1d

Added JSON output for use with node.js and backbone.js

+// Copyright 2006-2010, Thomas Walters, Willem van Engen
+//
+// AIM-C: A C++ implementation of the Auditory Image Model
+// http://www.acousticscale.org/AIMC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/*!
+ * \file
+ * \brief File output to JSON format
+ *
+ * \author Thomas Walters <[e-mail]>
+ * \author Willem van Engen <[e-mail]>
+ * \date created 2006/10/30
+ * \version \$Header$
+ */
+
+#ifndef AIMC_MODULES_OUTPUT_JSON_H_
+#define AIMC_MODULES_OUTPUT_JSON_H_
+
+#include <string>
+#include <iostream>
+#include <fstream>
+
+// using namespace std;
+
+#include "Support/Module.h"
+#include "Support/SignalBank.h"
+
+namespace aimc {
+class FileOutputJSON : public Module {
+ public:
+  /*! \brief Create a new file output for an JSON format file.
+   */
+  explicit FileOutputJSON(Parameters *pParam);
+  ~FileOutputJSON();
+  virtual void Process(const SignalBank &input);
+ private:
+ /*! \brief Initialize the output to JSON.
+   *  \param *filename Filename of the ouptut file to be created.
+   *  If the file exists it will be overwritten
+   *  \return Returns true on success of initialization.
+   */
+  bool OpenFile(string &filename);
+  bool CloseFile();
+  bool OpenStrobesFile(string &filename);
+  bool CloseStrobesFile();
+  
+  virtual bool InitializeInternal(const SignalBank &input);
+  virtual void ResetInternal();
+
+  void WriteHeader();
+
+  /*! \brief Whether initialization is done or not
+   */
+  bool header_written_;
+
+  /*! \brief Internal pointer to the output file
+   */
+  // FILE *file_handle_;
+  // FILE *strobes_file_handle_;
+  std::ofstream file_handle_;
+
+  /*! \brief Count of the number of samples in the file, written on close
+   */
+  int frame_count_;
+
+  int channel_count_;
+  int buffer_length_;
+  float sample_rate_;  
+  float frame_period_ms_;
+  string file_suffix_;
+  bool dump_strobes_;
+  string strobes_file_suffix_;
+};
+}  // namespace aimc
+
+#endif  // AIMC_MODULES_OUTPUT_JSON_H_
+