[vlc-devel] Re: jvlc-win32-060612 not playing video

[Pantelis Evgenidis]

Now I am replying to myself... How cool IS that?

Ok it seems I found a solution to play video using the VlcClient test 
application. The problem was
exactly, that the full path to vlc.exe was not passed neither 
discovered. Since I needed fast my
solution has alot of stuff hardcoded and further changes should be made, 
but at least it plays.

I will paste the patch file I created in here so anyone who wants can 
use it.

**You just copy - paste it to a new file <foo.patch> in <some_dir>, and 
from a *nix environment go to
vlc-trunk/bindings/java
and type
patch -Np0 -i <some_dir>/<foo.patch>

(** special grant for all you newbie *nixers :-))) )

Just a few comments on my changes:

- In VlcClient.java I have changed the jvlc.playlist.add method to point 
to my home dir.
    unfortunately the text field of the playa is not doing much yet.

- In JVLC.java using the System.LoadLibrary method does not distinguish 
between .so or .dll
    libraries

- The "major" change I did was on vlc-libvlc-jni.cc and is due to the 
fact (I think) that g++ is
    kinda stricter where casting is required than gcc (maybe only in 
windows?). That, and the fact
    that allocating a 1 by 5 char array cannot hold a windoze path :-))).

Thats it more or less, it is not perfect, I'm not even sure its good, 
but... it works. Thanks again Fillippo for
the path hint.

Cheers
Pantelis



diff -Nur java.ori/VlcClient.java java/VlcClient.java
--- java.ori/VlcClient.java     2006-07-21 18:21:18.015625000 +0300
+++ java/VlcClient.java 2006-07-21 18:21:10.890625000 +0300
@@ -22,7 +22,6 @@
 
         jvcc   = new JVLCPanel();
         jvlc = jvcc.getJVLCObject();
-
         setLayout(new java.awt.GridBagLayout());
 
         gridBagConstraints = new java.awt.GridBagConstraints();
@@ -45,7 +44,7 @@
         add( fullScreenButton, gridBagConstraints);
 
 
-        jTextField1.setText("file:///home/little/a.avi");
+        jTextField1.setText("file://C:\\cygwin\\home\\peyg\\a.avi");
         gridBagConstraints = new java.awt.GridBagConstraints();
         gridBagConstraints.gridx = 0;
         gridBagConstraints.gridy = 1;
@@ -116,7 +115,7 @@
     }
 
     private void setButtonActionPerformed(java.awt.event.ActionEvent evt) {
-        jvlc.playlist.add("file:///home/little/a.avi", "a.avi");
+        jvlc.playlist.add("file://C:\\cygwin\\home\\peyg\\a.avi", "a.avi");
         jvlc.playlist.play(-1, null);
     }
 
diff -Nur java.ori/org/videolan/jvlc/JVLC.java 
java/org/videolan/jvlc/JVLC.java
--- java.ori/org/videolan/jvlc/JVLC.java        2006-07-21 
18:21:44.859375000 +0300
+++ java/org/videolan/jvlc/JVLC.java    2006-07-21 18:21:35.203125000 +0300
@@ -36,7 +36,7 @@
 public class JVLC implements JLibVLC, Runnable {
    
     static {
-        System.load(System.getProperty( "user.dir" ) + "/libjvlc.so" );
+        System.loadLibrary("jvlc");
     }
 
     /**
diff -Nur java.ori/vlc-libvlc-jni.cc java/vlc-libvlc-jni.cc
--- java.ori/vlc-libvlc-jni.cc  2006-07-21 18:21:02.484375000 +0300
+++ java/vlc-libvlc-jni.cc      2006-07-21 18:20:41.453125000 +0300
@@ -43,11 +43,25 @@
     // res is the pointer to libvlc_instance_t
     long res;
     libvlc_exception_t *exception = ( libvlc_exception_t * ) malloc( 
sizeof( libvlc_exception_t ));
-    char temp_argv[1][5] = {""};
+              
+               char** temp_argv;
+
+               /* Let's just say we have 5 args in total */
+               temp_argv = (char**) malloc( sizeof(int) * 5 );
+
+               /* Now we calloc each arg with a length of 512 */
+               for (int i = 0; i < 5; i++)
+               {
+                       temp_argv[i] = (char*) calloc( sizeof(char), 512 );
+               }
 
     libvlc_exception_init( exception );
 
-    res = ( long ) libvlc_new( 0, (char **)temp_argv, exception );
+               sprintf( temp_argv[0], "%s", "C:\\Program 
Files\\VideoLAN\\VLC\\vlc.exe" );
+               temp_argv[1] = '\0';
+         res = ( long ) libvlc_new( 1, temp_argv, exception );
+
+      
 
     if ( libvlc_exception_raised( exception ))
     {


Pantelis Evgenidis wrote:

> Filippo Carone wrote:
>
>> Pantelis Evgenidis ha scritto:
>>
>>> Now to the matter at hand.
>>> There is problem in org/videolan/JVLC.java
>>> I have replaced the following line
>>> System.load(System.getProperty( "user.dir" ) + "/libjvlc.so" );
>>> with:
>>> System.loadLibrary("jvlc");
>>>
>>> Unfortunately when I try to run the test I get an 
>>> EXCEPTION_ACCESS_VIOLATION
>>
>>
>>
>> Win32 is a really hostile environment :). It is really difficult for 
>> me to follow what happens here, since I don't have a win32 pc atm.
>
>
> Couldn't agree more.
>
>>
>> Anyone giving me access to a win32 machine?
>
>
> Do what I do. I'm running SuSe 10.0 and I have installed winXP on 
> VMWare. Really awkward though running linux and on top winXP and
> installing cygwin for development...
>
>>
>> Cheers,
>> Filippo
>>
>

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