[vlc-devel] sout transcode error when using libvlc.

[ChengYQ]

Hi,
 
I got a problem streaming video by udp using libvlc.When I run vlc(0.8.6c) from command:
"vlc v4l:/dev/video0:size=320x240 --sout '#transcode{vcodec=mp4v,vb=1024,scale=1}:duplicate{dst=display,dst=std{access=udp,mux=ts,dst=192.168.0.231:1234}}',the sout works fine and stream the video, I think the drivers and my Gentoo Linux system environment is fine.
 
But when I follow the example http://wiki.videolan.org/LibVLC_Tutorial_086c, and changed the code a little bit to stream video out by UDP.it says that: 
"main private error: no sout stream module mathched 'transcode' 
main stream output error:stream chain failed for 'transcode{vcodec=mp4v,vb=1024,scale=1}:duplicate{dst=display,dst=std{access=udp,mux=ts,dst=192.168.0.231:1234}}'" 
 
My code is as following:
#include <stdio.h>#include <stdlib.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; char *myarg0 = "test"; char *myarg1 = "v4l://"; char *myarg2 = ":v4l-vdev=/dev/video0"; char *myarg3 = ":v4l-adev="; char *myarg4 = ":sout=#transcode{vcodec=mp4v,vb=1024,scale=1}:duplicate{dst=display,dst=std{access=udp,mux=ts,dst=192.168.0.231:1234}}"; char *myargs[5] = {myarg0,myarg1,myarg2,myarg3,myarg4}; libvlc_exception_init (&excp); inst = libvlc_new (5, myargs, &excp); quit_on_exception (&excp); libvlc_playlist_play (inst, -1, 0, NULL, &excp);  usleep (20000000); libvlc_destroy (inst); return 0;} 
 
If I feed only the first 4 args, the video display fine without streaming. Is that because I missed some arguments or I need to link some more modules, or ...?
 
Please help!!!
 
Thanks a lot!
Yours
Jay 
 
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