[Vorbis-dev] lack of detail for exception in ov_open

[Steve Russell]

----- Original Message ----- 
From: "Steve Russell" <srussell at innernet.net>
To: "Dimitry Andric" <dimitry at andric.com>
Sent: Wednesday, June 15, 2005 6:02 PM
Subject: Re: [Vorbis-dev] lack of detail for exception in ov_open


> ----- Original Message ----- 
> From: "Dimitry Andric" <dimitry at andric.com>
> To: "Steve Russell" <srussell at innernet.net>
> Cc: <vorbis-dev at xiph.org>
> Sent: Wednesday, June 15, 2005 8:25 AM
> Subject: Re: [Vorbis-dev] lack of detail for exception in ov_open
> On 2005-06-15 at 06:55:25 Steve Russell wrote:
>
>> "Unhandled exception in Room 101.exe (NTDLL.DLL): 0xC0000005: Access 
>> Violation."
>
>> OggVorbis_File vf;
>>  FILE* pFile;
>>  pFile = fopen("test.ogg", "rb");
>>  if(!pFile)
>>   AfxMessageBox("fopen failed");
>>  //    here's where I get the exception
>>  int err = ov_open(pFile, &vf, NULL, 0);
>
> If this is your actual code, and the test.ogg file doesn't exist, then
> it is logical that you get an access violation: you are passing a NULL
> pointer in the pFile parameter to ov_open.  Don't do that. :)
>
> OTOH, if you still get exceptions even when you pass a correct file
> pointer, then it's quite difficult to see what's going wrong without
> being able to reproduce it.  Therefore, could you please send the
> exact source code you're using, if it's not too large (or proprietary
> ;), or put it up for download somewhere?  Also, the exact versions of
> the vorbis libraries and/or DLLs you're using would be nice.
----------------------
Okay and thanks.  Here is a summary of what I have to this point . . . .

// AudioFile.cpp: implementation of the CAudioFile class.

#include "stdafx.h"
#include "Room 101.h"
#include "AudioFile.h"
//#include "speex/speex.h" // included in AudioFile.h
#include "speex\speex_bits.h"
 . . .
#include "vorbis/codec.h"
#include "vorbis/vorbisfile.h"
 . . .
OggVorbis_File vf;
FILE* pFile;
pFile = fopen("verdes_2.ogg", "rb");

if(!pFile)
 AfxMessageBox("fopen failed");
else
 AfxMessageBox("fopen succeeded");

int err = 0;
err = ov_open(pFile, &vf, NULL, 0);
if(err == OV_EREAD )
 AfxMessageBox("OV_EREAD error");
if(err == OV_ENOTVORBIS )
 AfxMessageBox("OV_ENOTVORBIS error");
if(err == 0)
 ::Beep(1000,20);  // I'd love to hear this
ov_clear(&vf);

*******

I admit that I do not fully understand what all directories and files I need
to be using and possibly
where to locate them.  Presently, I have this arrangement, with "C:\Hand in
Hand\Room 101\" being
my exe's directory:

C:\Hand in Hand\Room 101\vorbisfile.dll
C:\Hand in Hand\Room 101\ogg.dll
C:\Hand in Hand\Room 101\vorbis.dll

C:\Hand in Hand\Room 101\ogg\config_types.h.in
C:\Hand in Hand\Room 101\ogg\Makefile.am
C:\Hand in Hand\Room 101\ogg\Makefile.in
C:\Hand in Hand\Room 101\ogg\ogg.h
C:\Hand in Hand\Room 101\ogg\os_types.h

C:\Hand in Hand\Room 101\vorbis\codec.h
C:\Hand in Hand\Room 101\vorbis\vorbisenc.h
C:\Hand in Hand\Room 101\vorbis\vorbisfile.dll
C:\Hand in Hand\Room 101\vorbis\vorbisfile.h
C:\Hand in Hand\Room 101\vorbis\vorbisfile.lib

Copied to these locations from:

C:\OggVorbis\libogg-1.1
C:\OggVorbis\libvorbis-1.0.1

I read this from someone else's post:

"Your project should include the project files for the static (or dynamic if
you prefer) libs of ogg,
vorbis and vorbisfile; and should be dependent on all of them. You will need
to provide the paths to the 'ogg/include' dir and the 'vorbis/include' dir,
and maybe others. I can't remember off the top of my head. "

Can't say I'm comprehending all of that, but certainly wish I was.