# HG changeset patch
# User John W. Eaton <jwe@octave.org>
# Date 1420178348 18000
# Node ID a5eb03a7e2a5264ef1090983c0dedb0f357eddfb
# Parent  19f75d156ffee3b54e9da944c2400e9d16fbe0d1
eliminate unused variable and parameter warnings

* audiodevinfo.cc, audioread.cc: Eliminate unused variable and
parameter warnings.

diff -r 19f75d156ffe -r a5eb03a7e2a5 libinterp/dldfcn/audiodevinfo.cc
--- a/libinterp/dldfcn/audiodevinfo.cc	Fri Jan 02 00:47:25 2015 -0500
+++ b/libinterp/dldfcn/audiodevinfo.cc	Fri Jan 02 00:59:08 2015 -0500
@@ -437,7 +437,7 @@
 
   // Overloaded base functions
   double player_value (void) const { return 0; }
-  virtual double scalar_value (bool frc_str_conv = false) const { return 0; }
+  virtual double scalar_value (bool = false) const { return 0; }
   void print (std::ostream& os, bool pr_as_read_syntax = false) const;
   void print_raw (std::ostream& os, bool pr_as_read_syntax) const;
 
@@ -519,11 +519,9 @@
 }
 
 static int
-octave_play_callback (const void *input, void *output,
-                      unsigned long frames,
-                      const PaStreamCallbackTimeInfo *time,
-                      PaStreamCallbackFlags status,
-                      void *data)
+octave_play_callback (const void *, void *output, unsigned long frames,
+                      const PaStreamCallbackTimeInfo *,
+                      PaStreamCallbackFlags, void *data)
 {
   audioplayer *player = (audioplayer *)data;
   int big_endian = is_big_endian ();
@@ -589,11 +587,9 @@
 }
 
 static int
-portaudio_play_callback (const void *input, void *output,
-                         unsigned long frames,
-                         const PaStreamCallbackTimeInfo* time,
-                         PaStreamCallbackFlags status,
-                         void *data)
+portaudio_play_callback (const void *, void *output, unsigned long frames,
+                         const PaStreamCallbackTimeInfo*,
+                         PaStreamCallbackFlags, void *data)
 {
   audioplayer *player = (audioplayer *)data;
   int big_endian = is_big_endian ();
@@ -686,7 +682,7 @@
 }
 
 void
-audioplayer::print_raw (std::ostream& os, bool pr_as_read_syntax) const
+audioplayer::print_raw (std::ostream& os, bool) const
 {
   os << 0;
 }
@@ -727,8 +723,13 @@
 audioplayer::init (void)
 {
   PaError err;
-  int channels = this->y.rows ();
-  RowVector *sound_l = this->get_left ();
+
+  // Both of these variables are unused.  Should they be
+  // eliminated or is something not yet implemented?
+  //
+  // int channels = this->y.rows ();
+  // RowVector *sound_l = this->get_left ();
+
   int device;
 
   err = Pa_Initialize ();
@@ -1093,7 +1094,7 @@
 
   // Overloaded base functions
   double player_value (void) const { return 0; }
-  virtual double scalar_value (bool frc_str_conv = false) const { return 0; }
+  virtual double scalar_value (bool = false) const { return 0; }
   void print (std::ostream& os, bool pr_as_read_syntax = false) const;
   void print_raw (std::ostream& os, bool pr_as_read_syntax) const;
 
@@ -1160,11 +1161,9 @@
 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (audiorecorder, "audiorecorder", "audiorecorder");
 
 static int
-octave_record_callback (const void *input, void *output,
-                        unsigned long frames,
-                        const PaStreamCallbackTimeInfo* time,
-                        PaStreamCallbackFlags status,
-                        void *data)
+octave_record_callback (const void *input, void *, unsigned long frames,
+                        const PaStreamCallbackTimeInfo *,
+                        PaStreamCallbackFlags, void *data)
 {
   audiorecorder *recorder = (audiorecorder *)data;
   int channels = recorder->get_channels ();
@@ -1222,11 +1221,9 @@
 }
 
 static int
-portaudio_record_callback (const void *input, void *output,
-                           unsigned long frames,
-                           const PaStreamCallbackTimeInfo* time,
-                           PaStreamCallbackFlags status,
-                           void *data)
+portaudio_record_callback (const void *input, void *, unsigned long frames,
+                           const PaStreamCallbackTimeInfo *,
+                           PaStreamCallbackFlags, void *data)
 {
   audiorecorder *recorder = (audiorecorder *)data;
   int channels = recorder->get_channels ();
@@ -1302,7 +1299,7 @@
 }
 
 void
-audiorecorder::print_raw (std::ostream& os, bool pr_as_read_syntax) const
+audiorecorder::print_raw (std::ostream& os, bool) const
 {
   os << 0;
 }
diff -r 19f75d156ffe -r a5eb03a7e2a5 libinterp/dldfcn/audioread.cc
--- a/libinterp/dldfcn/audioread.cc	Fri Jan 02 00:47:25 2015 -0500
+++ b/libinterp/dldfcn/audioread.cc	Fri Jan 02 00:59:08 2015 -0500
@@ -223,7 +223,9 @@
   std::string title = "";
   std::string artist = "";
   std::string comment = "";
-  float quality = 0.75;
+  // Quality is currently unused?
+  //
+  // float quality = 0.75;
   for (int i = 3; i < args.length (); i += 2)
     {
       if (args(i).string_value () == "BitsPerSample")
@@ -242,8 +244,10 @@
         }
       else if (args(i).string_value () == "BitRate")
         ;
-      else if (args(i).string_value () == "Quality")
-        quality = args(i + 1).int_value () * 0.01;
+      // Quality is currently unused?
+      //
+      // else if (args(i).string_value () == "Quality")
+      //   quality = args(i + 1).int_value () * 0.01;
       else if (args(i).string_value () == "Title")
         title = args(i + 1).string_value ();
       else if (args(i).string_value () == "Artist")
@@ -289,7 +293,6 @@
   SNDFILE *file;
   SF_INFO info;
   info.format = 0;
-  int start, end;
   file = sf_open (args(0).string_value ().c_str (), SFM_READ, &info);
   retval.assign ("Filename", args(0).string_value ());
   retval.assign ("CompressionMethod", "");