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Dear Experts,
I have a built vlc 0.9.1 on coLinux. I have used the following configuration:
[00000001] main libvlc debug: VLC media player - version 0.9.1 Grishenko - (c) 1996-2008 the VideoLAN team
[00000001] main libvlc debug: libvlc was configured with ./configure '--disable-hal' '--disable-dbus' '--disable-dbus-control' '--disable-release' '--enable-switcher' '--disable-audioscrobbler' '--disable-taglib' '--disable-live555' '--disable-smb' '--enable-ogg' '--enable-mkv' '--enable-id3tag' '--disable-ffmpeg' '--enable-faad' '--enable-flac' '--enable-png' '--disable-x264' '--disable-x11' '--disable-glx' '--disable-opengl' '--disable-ncurses' '--disable-bonjour' '--prefix=/home/guruji/rakingu/vlc/build' '--disable-schroedinger' '--disable-kate' '--disable-libgcrypt' '--disable-remoteosd' '--disable-libmpeg2' '--disable-optimizations' '--enable-debug' '--disable-sdl' '--disable-xvmc' '--disable-fb' '--disable-oss' '--disable-alsa' '-disable-xvideo' '--disable-dvdread' '--disable-dvdnav' '--enable-freetype' '--disable-avformat' '--disable-qt4' '--disable-skins2' '--disable-dvb' '--disable-dvbpsi' '--disable-v4l2' '--disable-avcodec'

When I try to ./vlc with an input file .mp3, I get the following error:
[00000310] main audio output error: couldn't find a filter for the conversion
[00000310] main audio output error: couldn't create audio output pipeline

I am clueless. I tried to look for similar errors on the forum but could not get any correct answer.

Could anyone familiar with this problem help me out.

NOTE: I have verified /usr/bin/vlc installed from videolan.org works fine using "pulse audio" and alsa on coLinux. That indicates that Audio setup is ok.

Thanks for your time and help!

I forgot to mention,
I modified vlc.c in bin folder for vlc installation. The error I get is for this source file.
int main( int i_argc, char *ppsz_argv[] )
{
int i_ret = 0;

libvlc_exception_t excp;
printf("Begin to initialize");
libvlc_instance_t *inst;
int item;
char *filename = "abc.mp3";

char *myarg0 = "-I";
char *myarg1 = "dummy";
char *myarg2 = "--ignore-config";
char *myarg3 = "--plugin-path= <path>vlc-0.9.1/modules";
char *myargs[5] = {myarg0, myarg1,myarg2,myarg3, NULL};


inst = libvlc_new (4, myargs, &excp);


if (inst != NULL)
{
printf(" Instance created \n");
item = libvlc_playlist_add (inst, filename, NULL, &excp);
libvlc_playlist_play (inst, item, 0, NULL, &excp);
libvlc_wait (inst);
printf("Waiting");
libvlc_release (inst);
}



return i_ret;
}

Dear Experts,
I successfully built vlc-0.9.2 on linux debian. When I try to run vlc compiled out of about vlc.c, I get the following error:
[00000001] main libvlc debug: translation test: code is "C"
...
[00000345] oss audio output error: cannot open audio device (/dev/dsp)
[00000345] main audio output error: couldn't find a filter for the conversion
[00000345] main audio output error: couldn't create audio output pipeline

I build using following configuration
./configure '--enable-x11' '--enable-xvideo' '--disable-gtk' '--disable-sdl' '--enable-avcodec' '--enable-avformat' '--enable-swscale' '--enable-mad' '--enable-libdvbpsi' '--enable-a52' '--enable-libmpeg2' '--enable-dvdnav' '--enable-faad' '--enable-vorbis' '--enable-ogg' '--enable-theora' '--enable-faac' '--enable-mkv' '--enable-freetype' '--enable-fribidi' '--enable-speex' '--enable-flac' '--disable-live555' '--with-live555-tree=/usr/lib/live' '--enable-caca' '--enable-skins' '--disable-skins2' '--disable-alsa' '--disable-kde' '--disable-qt4' '--enable-ncurses' '--enable-debug' '--disable-glx' '--disable-dvb' '--disable-dvbpsi' '--disable-v4l2' '--disable-opengl'

Please note, I have --disable-alsa. Do you think, that is what is causing the problem?.
I am however about to successfully play the installed binary version of vlc (/usr/bin/vlc)

Please help.

Any clues?..Please help.

OSS is maybe locked by another application;.

Is your user allowed to access /dev/dsp? Does /dev/dsp exist?

In most distros I came across so far, there was a group audio granting access to /dev/dsp.

Add -vvv in the options you pass to libvlc in your programm so that we have more debug

Below is the output of ./vlc -vv.

And I have verified /dev/dsp exists. And I am able to run binary version of vlc(downloaded from videolan.org) and hear Audio. However, the compiled version on Linux gives me the error below. I have --disabled-alsa in my ./configure build. Would that be a problem?. Looks like "oss" has trouble in accesing /dev/dsp driver. Is there a configuration setting specific to vlc lib to look for correct alsa driver?

Too many questions. But I am disperate to solve this. Please help.

Thanks for your time.



./vlc -vv
[00000001] main libvlc debug: VLC media player - version 0.9.2 Grishenko - (c) 1996-2008 the VideoLAN team
[00000001] main libvlc debug: libvlc was configured with ./configure '--enable-x11' '--enable-xvideo' '--disable-gtk' '--disable-sdl' '--enable-avcodec' '--enable-avformat' '--enable-swscale' '--enable-mad' '--enable-libdvbpsi' '--enable-a52' '--enable-libmpeg2' '--enable-dvdnav' '--enable-faad' '--enable-vorbis' '--enable-ogg' '--enable-theora' '--enable-faac' '--enable-mkv' '--enable-freetype' '--enable-fribidi' '--enable-speex' '--enable-flac' '--disable-live555' '--with-live555-tree=/usr/lib/live' '--enable-caca' '--enable-skins' '--disable-skins2' '--disable-alsa' '--disable-kde' '--disable-qt4' '--enable-ncurses' '--enable-debug' '--disable-glx' '--disable-dvb' '--disable-dvbpsi' '--disable-v4l2' '--disable-opengl'
[00000001] main libvlc debug: translation test: code is "C"
[00000332] main stream error: cannot pre fill buffer
process 3339: D-Bus library appears to be incorrectly set up; failed to read machine uuid: Failed to open "/var/lib/dbus/machine-id": No such file or directory
See the manual page for dbus-uuidgen to correct this issue.
[00000336] inhibit interface error: Failed to connect to the D-Bus session daemon: Failed to execute dbus-launch to autolaunch D-Bus session
[00000336] main interface error: no suitable interface module
[00000001] main libvlc error: interface "inhibit,none" initialization failed
Instance created
process 3339: D-Bus library appears to be incorrectly set up; failed to read machine uuid: Failed to open "/var/lib/dbus/machine-id": No such file or directory
See the manual page for dbus-uuidgen to correct this issue.
[00000345] oss audio output error: cannot open audio device (/dev/dsp)
[00000345] main audio output error: couldn't find a filter for the conversion
[00000345] main audio output error: couldn't create audio output pipeline

I have successfully compiled VLC package on Red Hat Linux. I can launch VideoLan client from the exe. When i try to play a mpeg file from the player launched a black screen appers. Can someone help please. My configuration script is as follows :


./configure '--enable-x11' '--enable-xvideo' '--enable-gtk' '--enable-sdl' '--enable-ffmpeg' '--with-ffmpeg-mp3lame' '--disable-mad' '--enable-libdvbpsi' '--disable-a52' '--disable-libmpeg2' '--enable-dvdnav' '--disable-faad' '--enable-vorbis' '--enable-ogg' '--disable-theora' '--enable-faac--enable-mkv' '--enable-freetype' '--enable-fribidi' '--enable-speex' '--enable-flac' '--enable-caca' '--enable-skins' '--disable-skins2' '--enable-alsa' '--enable-kde--enable-qt' '--disable-wxwindows' '--enable-ncurses' '--enable-release' '--disable-swscale' '--disable-dbus' '--disable-avcodec' '--disable-avformat' '--disable-postproc' '--disable-qt4' '--disable-v4l2'

@Bombay_Boy:
That /dev/dsp exist is not enough. The rights on it needs to be correct and as j-b said, you need to be the only application using it.
Why disabling ALSA ??? I think you should recompile with alsa.

@Saurabh Thakkar:
1) Don't hijack threads
2)The crystal balls I ordered for Christmas hasn't arrived yet. So you'll have to give us the messages (-vvv)