Using VLC from C code

Morris83 · 09-14-2008, 04:57 AM

Hi all...
First, excuse me for bad english...
I'm new in C programming language, and I'm trying to run VLC from C code, using the libvlc.dll library. I found a tutorial at
http://wiki.videolan.org/LibVLC_Tutorial_086c

and I followed all the steps, using Dev-cpp as editor, but I couldn't compile the project.
These are the steps I followed:
1) Create a new project of type win32 Console
2) Create a new file: main.c, with the following content:

Code:

#include <stdio.h>
#include <windows.h>
#include <vlc/libvlc.h>

static void quit_on_exception (libvlc_exception_t *excp) {
   if (libvlc_exception_raised (excp)) {
      fprintf(stderr, "error: %s\n", libvlc_exception_get_message(excp));
      exit(-1);
   }
}

int main(int argc, char **argv) {
   libvlc_exception_t excp;
   libvlc_instance_t *inst;
   int item;
   char *myarg0 = "-I";  char *myarg1 = "dummy";
   char *myarg2 = "--plugin-path=c:\\Programmi\\VideoLAN\\VLC\\plugins";
   char *myargs[4] = {myarg0, myarg1, myarg2, NULL};
   char *filename = "c:\\Pippo.flv";

   libvlc_exception_init (&excp);
   inst = libvlc_new (3, myargs, &excp);
   quit_on_exception (&excp);
   item = libvlc_playlist_add (inst, filename, NULL, &excp); 
   quit_on_exception (&excp);
   libvlc_playlist_play (inst, item, 0, NULL, &excp); 
   quit_on_exception (&excp);
   Sleep (10000);
   libvlc_destroy (inst);
   return 0;
}

3) I installed the VLC software, version 0.8.6c

http://download.videolan.org/pub/vid...8.6c-win32.exe

4) Copy the file libvlc.dll into the System32 directory, so it will be included in my system path

5) I downloaded the vlc software, (to compile)-version,
link:
http://download.videolan.org/pub/vid...8.6c-win32.zip

and copied the include/vlc folder in the Dev-cpp include folder, so the line #include <vlc/libvlc.h> now is correct.

6) I've created a makefile addons, where i put the following lines:

Code:

VLC_INST = "C:\Programmi\VideoLAN\VLC\"
VLC_SRC = "C:\Programmi\VideoLAN\vlc-0.8.6c\"
main: main.c
   VLC_INST = "C:\Programmi\VideoLAN\VLC\"
VLC_SRC = "C:\Programmi\VideoLAN\vlc-0.8.6c\"
main: main.c
   $(CC) -o main main.c -I$(VLC_SRC)/include -L$(VLC_INST) -llibvlc

Finish...but when I try to compile I get error on the last line of the make file addon:

Code:

$(CC) -o main main.c -I$(VLC_SRC)/include -L$(VLC_INST) -llibvlc

with the following error:

Code:

*** multiple target patterns. Stop

Where I'm wrong??
Anyone can help me??

rags_to_riches · 09-14-2008, 10:33 AM

You have two targets for main in the Makefile. Get rid of this:

Code:

main: main.c
   VLC_INST = "C:\Programmi\VideoLAN\VLC\"

09-14-2008, 04:57 AM	#1
Morris83 Registered User Join Date: Sep 2008 Posts: 1	Using VLC from C code Hi all... First, excuse me for bad english... I'm new in C programming language, and I'm trying to run VLC from C code, using the libvlc.dll library. I found a tutorial at http://wiki.videolan.org/LibVLC_Tutorial_086c and I followed all the steps, using Dev-cpp as editor, but I couldn't compile the project. These are the steps I followed: 1) Create a new project of type win32 Console 2) Create a new file: main.c, with the following content: Code: #include <stdio.h> #include <windows.h> #include <vlc/libvlc.h> static void quit_on_exception (libvlc_exception_t excp) { if (libvlc_exception_raised (excp)) { fprintf(stderr, "error: %s\n", libvlc_exception_get_message(excp)); exit(-1); } } int main(int argc, char argv) { libvlc_exception_t excp; libvlc_instance_t inst; int item; char myarg0 = "-I"; char myarg1 = "dummy"; char myarg2 = "--plugin-path=c:\\Programmi\\VideoLAN\\VLC\\plugins"; char myargs[4] = {myarg0, myarg1, myarg2, NULL}; char filename = "c:\\Pippo.flv"; libvlc_exception_init (&excp); inst = libvlc_new (3, myargs, &excp); quit_on_exception (&excp); item = libvlc_playlist_add (inst, filename, NULL, &excp); quit_on_exception (&excp); libvlc_playlist_play (inst, item, 0, NULL, &excp); quit_on_exception (&excp); Sleep (10000); libvlc_destroy (inst); return 0; } 3) I installed the VLC software, version 0.8.6c http://download.videolan.org/pub/vid...8.6c-win32.exe 4) Copy the file libvlc.dll into the System32 directory, so it will be included in my system path 5) I downloaded the vlc software, (to compile)-version, link: http://download.videolan.org/pub/vid...8.6c-win32.zip and copied the include/vlc folder in the Dev-cpp include folder, so the line #include <vlc/libvlc.h> now is correct. 6) I've created a makefile addons, where i put the following lines: Code: VLC_INST = "C:\Programmi\VideoLAN\VLC\" VLC_SRC = "C:\Programmi\VideoLAN\vlc-0.8.6c\" main: main.c VLC_INST = "C:\Programmi\VideoLAN\VLC\" VLC_SRC = "C:\Programmi\VideoLAN\vlc-0.8.6c\" main: main.c $(CC) -o main main.c -I$(VLC_SRC)/include -L$(VLC_INST) -llibvlc Finish...but when I try to compile I get error on the last line of the make file addon: Code: $(CC) -o main main.c -I$(VLC_SRC)/include -L$(VLC_INST) -llibvlc with the following error: Code: ** multiple target patterns. Stop Where I'm wrong?? Anyone can help me?? Last edited by Morris83; 09-14-2008 at 07:53 AM.
Morris83 is offline

09-14-2008, 10:33 AM	#2
rags_to_riches and the Hat of Ass Join Date: Dec 2007 Posts: 730	You have two targets for main in the Makefile. Get rid of this: Code: main: main.c VLC_INST = "C:\Programmi\VideoLAN\VLC\"
rags_to_riches is offline

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