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Mo Win

2005-Oct-17 05:05 UTC

[Speex-dev] Error Executing sampledec in VC++

hey guys, I just compiled an application similar to sampledec.c (for speex
1.1.10) and it was fine but when I executed it, the app exited without doing
anything. I'm using MS VC 6.0 and this was all I got - First-chance
exception in sampledec.exe : 0xC0000005: Access Violation. Has anyone
encountered this / does anyone know how to deal with it? by the way,
sampleenc executed perfectly...

When I removed the "while" loop in sampledec, the program executed
fine (I
placed printf's to check which lines were executed). I also tried running
the loop only once (erasing only the while statement and retaining the code
within it) and it worked fine again. Something seems to be happening during
loop iteration that causes the program to terminate abnormally.. any clues?
thanks very much for any tip..

In gratitude,
Mon

(Below is my code. it's almost exactly like sampleenc except I read a file
stream instead of stdin)

#include "speex/speex.h"

#include <stdio.h>
#include <iostream.h>

void main ()
{
// Definitions
#define FRAME_SIZE 160
#define FIXED_POINT

 // Variable Declarations
FILE *fo, *fs;
short spx [FRAME_SIZE];
float pcm [FRAME_SIZE];
char cbits [200];
int nbBytes, n, temp;

void *decstate;
SpeexBits spxbits;


// Program starts here:
cout << "Starting spxdec...\n";
fo = fopen("samp.spx","rb");

if (fo == NULL)
cout << "Error!\n";
else
cout << "Okay!\n";

fs = fopen ("pcmfile", "wb");

if (fs == NULL)
cout << "Error creating file!\n";
else
cout << "File created!\n";


while (!(feof(fo)))
{
decstate = speex_decoder_init (&speex_nb_mode);

// Set default options for decoding:
temp = 1;
speex_decoder_ctl(decstate, SPEEX_SET_ENH, &temp);


// Initialize spxbits (structure SpeexBits)
speex_bits_init (&spxbits);


fread (&nbBytes, sizeof(int), 1, fo);
fread (cbits, 1, nbBytes, fo);

cout << "1"; // just to see whether the loop iterates

speex_bits_read_from (&spxbits, cbits, nbBytes);
speex_decode (decstate, &spxbits, pcm);


// Copy 1 frame from float pcm to short spx
for (n=0; n<FRAME_SIZE; n++)
spx [n] = pcm [n];

fwrite (spx, sizeof(short), FRAME_SIZE, fs);

}
// end of loop
// Entire file has been read, decoded and saved

speex_decoder_destroy (decstate);
speex_bits_destroy (&spxbits);
fclose (fo);
fclose (fs);

cout << "Finished processing!\n";
}
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Steve Russell

2005-Oct-17 13:45 UTC

head link

[Speex-dev] Error Executing sampledec in VC++

I mis-read the number of loops below, earlier in the day, and made an obviously
incorrect recommendation about moving fclose( ).  However, being very interested
myself in being able to decode Speex files on the fly in my MFC project, I am in
the process of asking an audio expert about this while loop problem.  I
don't think I have ever gotten any further than the access violation you
report.
  ----- Original Message ----- 
  From: Mo Win 
  To: speex-dev@xiph.org 
  Sent: Monday, October 17, 2005 8:05 AM
  Subject: [Speex-dev] Error Executing sampledec in VC++


  hey guys, I just compiled an application similar to sampledec.c (for speex
1.1.10) and it was fine but when I executed it, the app exited without doing
anything. I'm using MS VC 6.0 and this was all I got - First-chance
exception in sampledec.exe : 0xC0000005: Access Violation. Has anyone
encountered this / does anyone know how to deal with it? by the way, sampleenc
executed perfectly...

  When I removed the "while" loop in sampledec, the program executed
fine (I placed printf's to check which lines were executed). I also tried
running the loop only once (erasing only the while statement and retaining the
code within it) and it worked fine again. Something seems to be happening during
loop iteration that causes the program to terminate abnormally.. any clues?
thanks very much for any tip..

  In gratitude,
  Mon

  (Below is my code. it's almost exactly like sampleenc except I read a file
stream instead of stdin)

  #include "speex/speex.h"

  #include <stdio.h>
  #include <iostream.h>

  void main ()
  {
      // Definitions
      #define FRAME_SIZE 160
      #define FIXED_POINT

      // Variable Declarations
      FILE *fo, *fs;
      short spx [FRAME_SIZE];
      float pcm [FRAME_SIZE];
      char cbits [200];
      int nbBytes, n, temp;

      void *decstate;
      SpeexBits spxbits;


      // Program starts here:
      cout << "Starting spxdec...\n";
      fo = fopen("samp.spx","rb");

      if (fo == NULL)
          cout << "Error!\n";
      else
          cout << "Okay!\n";

      fs = fopen ("pcmfile", "wb");

      if (fs == NULL)
          cout << "Error creating file!\n";
      else
          cout << "File created!\n";


      while (!(feof(fo)))
      {
      decstate = speex_decoder_init (&speex_nb_mode);

      // Set default options for decoding:
      temp = 1;
      speex_decoder_ctl(decstate, SPEEX_SET_ENH, &temp);


      // Initialize spxbits (structure SpeexBits)
      speex_bits_init (&spxbits);


          fread (&nbBytes, sizeof(int), 1, fo);
          fread (cbits, 1, nbBytes, fo);

          cout << "1"; // just to see whether the loop iterates

          speex_bits_read_from (&spxbits, cbits, nbBytes);
          speex_decode (decstate, &spxbits, pcm);


          // Copy 1 frame from float pcm to short spx
          for (n=0; n<FRAME_SIZE; n++)
              spx [n] = pcm [n];

          fwrite (spx, sizeof(short), FRAME_SIZE, fs);

      }
       // end of  loop
      // Entire file has been read, decoded and saved

      speex_decoder_destroy (decstate);
      speex_bits_destroy (&spxbits);
      fclose (fo);
      fclose (fs);
      
      cout << "Finished processing!\n";
  }




------------------------------------------------------------------------------


  _______________________________________________
  Speex-dev mailing list
  Speex-dev@xiph.org
  http://lists.xiph.org/mailman/listinfo/speex-dev
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Steve Russell

2005-Oct-17 15:08 UTC

head link

[Speex-dev] Error Executing sampledec in VC++

Mon,

Here is feedback that I got concerning the access violation, i.e. the failure of
the while loop below.  Does this solve the problem?

Steve

My guess is that speex_decoder_init() should be outside the while().. loop
as speex_decoder_destroy() is also outside.
  ----- Original Message ----- 
  From: Mo Win 
  To: speex-dev@xiph.org 
  Sent: Monday, October 17, 2005 8:05 AM
  Subject: [Speex-dev] Error Executing sampledec in VC++


  hey guys, I just compiled an application similar to sampledec.c (for speex
1.1.10) and it was fine but when I executed it, the app exited without doing
anything. I'm using MS VC 6.0 and this was all I got - First-chance
exception in sampledec.exe : 0xC0000005: Access Violation. Has anyone
encountered this / does anyone know how to deal with it? by the way, sampleenc
executed perfectly...

  When I removed the "while" loop in sampledec, the program executed
fine (I placed printf's to check which lines were executed). I also tried
running the loop only once (erasing only the while statement and retaining the
code within it) and it worked fine again. Something seems to be happening during
loop iteration that causes the program to terminate abnormally.. any clues?
thanks very much for any tip..

  In gratitude,
  Mon

  (Below is my code. it's almost exactly like sampleenc except I read a file
stream instead of stdin)

  #include "speex/speex.h"

  #include <stdio.h>
  #include <iostream.h>

  void main ()
  {
      // Definitions
      #define FRAME_SIZE 160
      #define FIXED_POINT

      // Variable Declarations
      FILE *fo, *fs;
      short spx [FRAME_SIZE];
      float pcm [FRAME_SIZE];
      char cbits [200];
      int nbBytes, n, temp;

      void *decstate;
      SpeexBits spxbits;


      // Program starts here:
      cout << "Starting spxdec...\n";
      fo = fopen("samp.spx","rb");

      if (fo == NULL)
          cout << "Error!\n";
      else
          cout << "Okay!\n";

      fs = fopen ("pcmfile", "wb");

      if (fs == NULL)
          cout << "Error creating file!\n";
      else
          cout << "File created!\n";


      while (!(feof(fo)))
      {
      decstate = speex_decoder_init (&speex_nb_mode);

      // Set default options for decoding:
      temp = 1;
      speex_decoder_ctl(decstate, SPEEX_SET_ENH, &temp);


      // Initialize spxbits (structure SpeexBits)
      speex_bits_init (&spxbits);


          fread (&nbBytes, sizeof(int), 1, fo);
          fread (cbits, 1, nbBytes, fo);

          cout << "1"; // just to see whether the loop iterates

          speex_bits_read_from (&spxbits, cbits, nbBytes);
          speex_decode (decstate, &spxbits, pcm);


          // Copy 1 frame from float pcm to short spx
          for (n=0; n<FRAME_SIZE; n++)
              spx [n] = pcm [n];

          fwrite (spx, sizeof(short), FRAME_SIZE, fs);

      }
       // end of  loop
      // Entire file has been read, decoded and saved

      speex_decoder_destroy (decstate);
      speex_bits_destroy (&spxbits);
      fclose (fo);
      fclose (fs);
      
      cout << "Finished processing!\n";
  }




------------------------------------------------------------------------------


  _______________________________________________
  Speex-dev mailing list
  Speex-dev@xiph.org
  http://lists.xiph.org/mailman/listinfo/speex-dev
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Mo Win

2005-Oct-17 19:31 UTC

head link

[Speex-dev] Error Executing sampledec in VC++

Hi Steve, thanks for the advice. I placed the appropriate functions outside
the while statement but I still get this error at the while loop:

First-chance exception at 0x004010fa in SPXDEC.exe: 0xC0000005: Access
violation reading location 0x0000000c.
Unhandled exception at 0x004010fa in SPXDEC.exe: 0xC0000005: Access
violation reading location 0x0000000c.

It looks like the same error. I've attached the code below

Thanks,
Mon

Portion of the revised code:


decstate = speex_decoder_init (&speex_nb_mode);
// Set default options for decoding:
temp = 1;
speex_decoder_ctl(decstate, SPEEX_SET_ENH, &temp);

// Initialize spxbits (structure SpeexBits)
speex_bits_init (&spxbits);

while (!(feof(fo))) // this is where the problem starts
{
fread (&nbBytes, sizeof(int), 1, fo);
fread (cbits, 1, nbBytes, fo);

cout << "1"; // just to see whether the loop iterates

speex_bits_read_from (&spxbits, cbits, nbBytes);
speex_decode (decstate, &spxbits, pcm);


// Copy 1 frame from float pcm to short spx
for (n=0; n<FRAME_SIZE; n++)
spx [n] = pcm [n];

fwrite (spx, sizeof(short), FRAME_SIZE, fs);

}
// end of loop
// Entire file has been read, decoded and saved

speex_decoder_destroy (decstate);
speex_bits_destroy (&spxbits);
fclose (fo);
fclose (fs);

cout << "Finished processing!\n";
}

On 10/18/05, Steve Russell <srussell@innernet.net>
wrote:>
> Mon,
>  Here is feedback that I got concerning the access violation, i.e. the
> failure of the while loop below. Does this solve the problem?
>  Steve
>  My guess is that speex_decoder_init() should be outside the while()..
> loop
> as speex_decoder_destroy() is also outside.
>
> ----- Original Message -----
> *From:* Mo Win <mowin.dev@gmail.com>
> *To:* speex-dev@xiph.org
> *Sent:* Monday, October 17, 2005 8:05 AM
> *Subject:* [Speex-dev] Error Executing sampledec in VC++
>
> hey guys, I just compiled an application similar to sampledec.c (for speex
> 1.1.10) and it was fine but when I executed it, the app exited without
> doing anything. I'm using MS VC 6.0 and this was all I got -
First-chance
> exception in sampledec.exe : 0xC0000005: Access Violation. Has anyone
> encountered this / does anyone know how to deal with it? by the way,
> sampleenc executed perfectly...
>
> When I removed the "while" loop in sampledec, the program
executed fine (I
> placed printf's to check which lines were executed). I also tried
running
> the loop only once (erasing only the while statement and retaining the code
> within it) and it worked fine again. Something seems to be happening during
> loop iteration that causes the program to terminate abnormally.. any clues?
> thanks very much for any tip..
>
> In gratitude,
> Mon
>
> (Below is my code. it's almost exactly like sampleenc except I read a
file
> stream instead of stdin)
>
> #include "speex/speex.h"
>
> #include <stdio.h>
> #include <iostream.h>
>
> void main ()
> {
> // Definitions
> #define FRAME_SIZE 160
> #define FIXED_POINT
>
>  // Variable Declarations
> FILE *fo, *fs;
> short spx [FRAME_SIZE];
> float pcm [FRAME_SIZE];
> char cbits [200];
> int nbBytes, n, temp;
>
> void *decstate;
> SpeexBits spxbits;
>
>
> // Program starts here:
> cout << "Starting spxdec...\n";
> fo = fopen("samp.spx","rb");
>
> if (fo == NULL)
> cout << "Error!\n";
> else
> cout << "Okay!\n";
>
> fs = fopen ("pcmfile", "wb");
>
> if (fs == NULL)
> cout << "Error creating file!\n";
> else
> cout << "File created!\n";
>
>
> while (!(feof(fo)))
> {
> decstate = speex_decoder_init (&speex_nb_mode);
>
> // Set default options for decoding:
> temp = 1;
> speex_decoder_ctl(decstate, SPEEX_SET_ENH, &temp);
>
>
> // Initialize spxbits (structure SpeexBits)
> speex_bits_init (&spxbits);
>
>
> fread (&nbBytes, sizeof(int), 1, fo);
> fread (cbits, 1, nbBytes, fo);
>
> cout << "1"; // just to see whether the loop iterates
>
> speex_bits_read_from (&spxbits, cbits, nbBytes);
> speex_decode (decstate, &spxbits, pcm);
>
>
> // Copy 1 frame from float pcm to short spx
> for (n=0; n<FRAME_SIZE; n++)
> spx [n] = pcm [n];
>
> fwrite (spx, sizeof(short), FRAME_SIZE, fs);
>
> }
> // end of loop
> // Entire file has been read, decoded and saved
>
> speex_decoder_destroy (decstate);
> speex_bits_destroy (&spxbits);
> fclose (fo);
> fclose (fs);
>
> cout << "Finished processing!\n";
> }
>
>  ------------------------------
>
> _______________________________________________
> Speex-dev mailing list
> Speex-dev@xiph.org
> http://lists.xiph.org/mailman/listinfo/speex-dev
>
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