openquicktime-users

[Openquicktime-users] Who compiled this OpenQT dll?

[Rob C. <ro...@so...>]

While scanning my harddrive I suddenly found this dll file. (Get it here =
http://www.solidrocketboosters.com/dev/openqtdll/OpenQuicktimeLib.dll)
I have really no idea where I got it from .. I guess it came with some =
application?

Anyway a enumeration of the dll's functiosn tells me that about all the =
OpenQuicktime API's functions are present in this dll.

Is there any documentation on the DLL?
I tried to access some of the functions from VB, but I did not really =
succeed, its a kin a black box now.

-Rob

Re: [Openquicktime-users] Who compiled this OpenQT dll?

[Yann <ya...@3i...>]

Hello Rob,

OpenQuicktime can be used by anyone respecting the LGPL license.
It's currently used by some of the DirectShow filters used by 3ivx D4 =
(www.3ivx.com) ...
The API of that dll is well-known and its documentation can be found =
here (http://www.openquicktime.org/docs/openquicktime/).
It's not a black-box at all, you can find its source code in the =
openquicktime CVS (http://sourceforge.net/cvs/?group_id=3D26082)

hope that helps,

Yann.
  ----- Original Message -----=20
  From: Rob Coenen=20
  To: ope...@li...=20
  Sent: Sunday, April 06, 2003 6:17 PM
  Subject: [Openquicktime-users] Who compiled this OpenQT dll?


  While scanning my harddrive I suddenly found this dll file. (Get it =
here =
http://www.solidrocketboosters.com/dev/openqtdll/OpenQuicktimeLib.dll)
  I have really no idea where I got it from .. I guess it came with some =
application?

  Anyway a enumeration of the dll's functiosn tells me that about all =
the OpenQuicktime API's functions are present in this dll.

  Is there any documentation on the DLL?
  I tried to access some of the functions from VB, but I did not really =
succeed, its a kin a black box now.

  -Rob

Re: [Openquicktime-users] Who compiled this OpenQT dll?

[Rob C. <ro...@so...>]

allright, I know the API is well known, but -and this might be off =
topic-, I have trouble using this specific DLL.
I want to use it within Visual Basic and the problem is that I have no =
idea how to call the functions in the dll in the right way.

The API documentation say for example about oqt_get_info_list :

---start quote---
OPENQUICKTIMELIB_API oqt_udta_t* OQT_STDCALL oqt_get_info_list (
    oqt_t *file
);
Parameters
Name Description
file The file to get the info fields from'

Result: The array of info field records
---end quote---

Now I woudl like to access this function from VB, and I tried something =
like this:

Public Declare Function oqt_get_info_list Lib "OpenQuicktimeLib.dll" =
(ByVal file as string) as variant

test =3D oqt_get_info_list("my_kewl_movie.mov")

This results in a "Run-time error '49': Bad DLL Calling convention"

I think this has to do because the function is not using a STDCLL but a =
OQT_STDCLL (whatever that exactly might be, I am little experienced with =
C++, but I did figure out that VB only seems to support STDCLL)
Also as I don't have the source code of the dll I cannot change =
anything. I tried to compile such a DLL myself using VC++ but I ran into =
problems because if a missing "inttypes.h" which seems to be not part of =
Visual C++.
So any help on compiling myself a OpenQT dll and / or how to use this =
from within VB ... mucho gracias (this will result into support for not =
only .avi & .mp4 but also .mov in my awesome, non commercial, opensource =
yet-top-secret-for-now project !)

-Rob

  ----- Original Message -----=20
  From: Yann=20
  To: Rob Coenen ; ope...@li...=20
  Sent: Sunday, April 06, 2003 6:43 PM
  Subject: Re: [Openquicktime-users] Who compiled this OpenQT dll?


  Hello Rob,

  OpenQuicktime can be used by anyone respecting the LGPL license.
  It's currently used by some of the DirectShow filters used by 3ivx D4 =
(www.3ivx.com) ...
  The API of that dll is well-known and its documentation can be found =
here (http://www.openquicktime.org/docs/openquicktime/).
  It's not a black-box at all, you can find its source code in the =
openquicktime CVS (http://sourceforge.net/cvs/?group_id=3D26082)

  hope that helps,

  Yann.
    ----- Original Message -----=20
    From: Rob Coenen=20
    To: ope...@li...=20
    Sent: Sunday, April 06, 2003 6:17 PM
    Subject: [Openquicktime-users] Who compiled this OpenQT dll?


    While scanning my harddrive I suddenly found this dll file. (Get it =
here =
http://www.solidrocketboosters.com/dev/openqtdll/OpenQuicktimeLib.dll)
    I have really no idea where I got it from .. I guess it came with =
some application?

    Anyway a enumeration of the dll's functiosn tells me that about all =
the OpenQuicktime API's functions are present in this dll.

    Is there any documentation on the DLL?
    I tried to access some of the functions from VB, but I did not =
really succeed, its a kin a black box now.

    -Rob

Re: [Openquicktime-users] Who compiled this OpenQT dll?

[Yann <ya...@3i...>]

Yeah, you're right the dll uses cdecl and not stdcall. So, either, there =
is a way to call a cdecl function from visualbasic or you have to =
recompile the dll.
The current OpenQuicktimeLib.dsp works nicely in my dev env ... I cannot =
help you more without other precisions :(
Be sure to use the sources from the cvs and not the old 1.0 Release ...
  ----- Original Message -----=20
  From: Rob Coenen=20
  To: Yann ; ope...@li...=20
  Sent: Sunday, April 06, 2003 7:13 PM
  Subject: Re: [Openquicktime-users] Who compiled this OpenQT dll?


  allright, I know the API is well known, but -and this might be off =
topic-, I have trouble using this specific DLL.
  I want to use it within Visual Basic and the problem is that I have no =
idea how to call the functions in the dll in the right way.

  The API documentation say for example about oqt_get_info_list :

  ---start quote---
  OPENQUICKTIMELIB_API oqt_udta_t* OQT_STDCALL oqt_get_info_list (
      oqt_t *file
  );
  Parameters
  Name Description
  file The file to get the info fields from'

  Result: The array of info field records
  ---end quote---

  Now I woudl like to access this function from VB, and I tried =
something like this:

  Public Declare Function oqt_get_info_list Lib "OpenQuicktimeLib.dll" =
(ByVal file as string) as variant

  test =3D oqt_get_info_list("my_kewl_movie.mov")

  This results in a "Run-time error '49': Bad DLL Calling convention"

  I think this has to do because the function is not using a STDCLL but =
a OQT_STDCLL (whatever that exactly might be, I am little experienced =
with C++, but I did figure out that VB only seems to support STDCLL)
  Also as I don't have the source code of the dll I cannot change =
anything. I tried to compile such a DLL myself using VC++ but I ran into =
problems because if a missing "inttypes.h" which seems to be not part of =
Visual C++.
  So any help on compiling myself a OpenQT dll and / or how to use this =
from within VB ... mucho gracias (this will result into support for not =
only .avi & .mp4 but also .mov in my awesome, non commercial, opensource =
yet-top-secret-for-now project !)

  -Rob

    ----- Original Message -----=20
    From: Yann=20
    To: Rob Coenen ; ope...@li...=20
    Sent: Sunday, April 06, 2003 6:43 PM
    Subject: Re: [Openquicktime-users] Who compiled this OpenQT dll?


    Hello Rob,

    OpenQuicktime can be used by anyone respecting the LGPL license.
    It's currently used by some of the DirectShow filters used by 3ivx =
D4 (www.3ivx.com) ...
    The API of that dll is well-known and its documentation can be found =
here (http://www.openquicktime.org/docs/openquicktime/).
    It's not a black-box at all, you can find its source code in the =
openquicktime CVS (http://sourceforge.net/cvs/?group_id=3D26082)

    hope that helps,

    Yann.
      ----- Original Message -----=20
      From: Rob Coenen=20
      To: ope...@li...=20
      Sent: Sunday, April 06, 2003 6:17 PM
      Subject: [Openquicktime-users] Who compiled this OpenQT dll?


      While scanning my harddrive I suddenly found this dll file. (Get =
it here =
http://www.solidrocketboosters.com/dev/openqtdll/OpenQuicktimeLib.dll)
      I have really no idea where I got it from .. I guess it came with =
some application?

      Anyway a enumeration of the dll's functiosn tells me that about =
all the OpenQuicktime API's functions are present in this dll.

      Is there any documentation on the DLL?
      I tried to access some of the functions from VB, but I did not =
really succeed, its a kin a black box now.

      -Rob

Re: [Openquicktime-users] Who compiled this OpenQT dll?

[Rob C. <ro...@so...>]

Oops right I was not using the CVS version buty the old 1.0
I tried the latest CVS version and it has 2 .dsp 's in the WIN32 folder. =
Still got 2 problems:
1) On opening it complains that "OQTDemux.dsp" is unavailable.
2) When trying to compile OpenQuicktimeLib the compiler gives these =
errors:
c:\Dev\OpenQT\Compress\OpenQuicktime\lib\udta.c(230): error C2065: =
'PACKAGE' : undeclared identifier
c:\Dev\OpenQT\Compress\OpenQuicktime\lib\udta.c(230): warning C4047: =
'function' : 'char *' differs in levels of indirection from 'int'
c:\Dev\OpenQT\Compress\OpenQuicktime\lib\udta.c(230): error C2143: =
syntax error : missing ')' before 'string'
c:\Dev\OpenQT\Compress\OpenQuicktime\lib\udta.c(230): error C2059: =
syntax error : ')'
c:\Dev\OpenQT\Compress\OpenQuicktime\lib\moov.c(24): fatal error C1083: =
Cannot open include file: 'zlib.h': No such file or directory

(tried both VC++ 6 & VC++.NET). I guess I can fix the last error about =
the missing zlib.h but the other erros are less clear to me.
(at least why they appear as you were able to build it)

  ----- Original Message -----=20
  From: Yann=20
  To: ope...@li...=20
  Sent: Sunday, April 06, 2003 11:46 PM
  Subject: Re: [Openquicktime-users] Who compiled this OpenQT dll?


  Yeah, you're right the dll uses cdecl and not stdcall. So, either, =
there is a way to call a cdecl function from visualbasic or you have to =
recompile the dll.
  The current OpenQuicktimeLib.dsp works nicely in my dev env ... I =
cannot help you more without other precisions :(
  Be sure to use the sources from the cvs and not the old 1.0 Release ...

Re: [Openquicktime-users] Who compiled this OpenQT dll?

[Nicholas H. <nj...@ec...>]

Hi,

Sorry I didn't reply about your previous emails - I have very very 
little knowledge about Windows.

I can however tell you the problem with a couple of the problems.

The 'PACKAGE' macro needs to be defined in winconfig.h
Try bunging in the following stuff I took from my config.h.


And the 'zlib.h' header file is part of zlib - and probably needs 
install on your system?
http://www.gzip.org/zlib/


Cheers,

nick.





/* The name of the host system OpenQuicktime is running on. */
#define OQT_HOST "some-windows-machine"

/* Increment when the Plugin interface API changes. */
#define OQT_INTERFACE_AGE 1

/* Name of package */
#define PACKAGE "openquicktime"

/* Define to the address where bug reports for this package should be sent. */
#define PACKAGE_BUGREPORT "ope...@li..."

/* Define to the full name of this package. */
#define PACKAGE_NAME "OpenQuicktime"

/* Define to the full name and version of this package. */
#define PACKAGE_STRING "OpenQuicktime 2.0.0b1"

/* Define to the one symbol short name of this package. */
#define PACKAGE_TARNAME "openquicktime"

/* Define to the version of this package. */
#define PACKAGE_VERSION "2.0.0b1"




>Oops right I was not using the CVS version buty the old 1.0
>I tried the latest CVS version and it has 2 .dsp 's in the WIN32 
>folder. Still got 2 problems:
>1) On opening it complains that "OQTDemux.dsp" is unavailable.
>2) When trying to compile OpenQuicktimeLib the compiler gives these errors:
>c:\Dev\OpenQT\Compress\OpenQuicktime\lib\udta.c(230): error C2065: 
>'PACKAGE' : undeclared identifier
>c:\Dev\OpenQT\Compress\OpenQuicktime\lib\udta.c(230): warning C4047: 
>'function' : 'char *' differs in levels of indirection from 'int'
>c:\Dev\OpenQT\Compress\OpenQuicktime\lib\udta.c(230): error C2143: 
>syntax error : missing ')' before 'string'
>c:\Dev\OpenQT\Compress\OpenQuicktime\lib\udta.c(230): error C2059: 
>syntax error : ')'
>c:\Dev\OpenQT\Compress\OpenQuicktime\lib\moov.c(24): fatal error 
>C1083: Cannot open include file: 'zlib.h': No such file or directory
>
>(tried both VC++ 6 & VC++.NET). I guess I can fix the last error 
>about the missing zlib.h but the other erros are less clear to me.
>(at least why they appear as you were able to build it)
>
>
>----- Original Message -----
>From: <mailto:ya...@3i...>Yann
>To: 
><mailto:ope...@li...>ope...@li...
>Sent: Sunday, April 06, 2003 11:46 PM
>Subject: Re: [Openquicktime-users] Who compiled this OpenQT dll?
>
>Yeah, you're right the dll uses cdecl and not stdcall. So, either, 
>there is a way to call a cdecl function from visualbasic or you have 
>to recompile the dll.
>The current OpenQuicktimeLib.dsp works nicely in my dev env ... I 
>cannot help you more without other precisions :(
>Be sure to use the sources from the cvs and not the old 1.0 Release ...