Adventures with no picture in VLC and compiling FFMPEG

donnied · 11-08-2008, 10:00 AM

Whenever I try to open videos with VLC, Video doesn't play.
The audio plays fine. My other video players can play them.

I've tried going into >preferences>output modules> advanced and trying different modes starting with X11 and trying others.

I tried removing vlc and ffmpeg

Code:

dpkg --force-depends --purge vlc ffmpeg

and

Code:

rm -rf ~/.vlc/

and reinstalling to no success.

I've also tried

Code:

apt-get source -b ffmpeg vlc

And VLC fails with the error messsage:

Code:

Your FFmpeg library doesn't have the needed img_resample() function. You should rebuild it with software scaler disabled

(another suggestion?)

So I try to install ffmpeg from subversion with dhmake:
(should I choose single/multiple/ or library?)

Code:

#dh_make --create-orig
#dpkg-buildpakage -rfakeroot
make[1]: *** No rule to make target `libavutil/../config.mak'.  Stop.

H_TeXMeX_H · 11-08-2008, 11:01 AM

You need to do what is says and build ffmpeg without swscaler support, probably using './configure --disable-swscaler'.

Quakeboy02 · 11-08-2008, 11:02 AM

I had this happen to me on vlc 32 bit after I was messing around with the video stuff. Have you tried within vlc using Settings->Preferences->Reset All?

jiml8 · 11-08-2008, 11:20 AM

http://www.linuxquestions.org/questi...?highlight=vlc

donnied · 11-08-2008, 11:31 AM

Quote:

Originally Posted by jiml8

http://www.linuxquestions.org/questi...?highlight=vlc

Following this is useful; it boils down to:

Code:

 vlc -v --reset-plugins-cache

which highlights the following:

Code:

cannot load module `/usr/lib/vlc/codec/libffmpeg_plugin.so' (/usr/lib/vlc/codec/libffmpeg_plugin.so: undefined symbol: img_resample)

donnied · 11-08-2008, 03:37 PM

Quote:

Originally Posted by H_TeXMeX_H

You need to do what is says and build ffmpeg without swscaler support, probably using './configure --disable-swscaler'.

You could be right. I'll try that as soon as I can get ffmpeg to build (and then I'll build again with correct configuration).

Code:

libavdevice/Makefile:1: libavdevice/../config.mak: No such file or directory
libavformat/Makefile:1: libavformat/../config.mak: No such file or directory
libavcodec/Makefile:1: libavcodec/../config.mak: No such file or directory
libavutil/Makefile:1: libavutil/../config.mak: No such file or directory
make[1]: *** No rule to make target `libavutil/../config.mak'.  Stop.

H_TeXMeX_H · 11-09-2008, 03:42 AM

Have you tried using the the standard './configure; make; make install' ? It works for me that way.

donnied · 11-09-2008, 09:37 AM

I would like to use dh_make for the ease of adding and removing. I can check to see if checkinstall is any easier.

As far as the default configuration goes; I was thinking I should enable at list a few of these. I haven't had a chance to look them all up.

Code:

libamr-nb support         no
libamr-wb support         no
libdc1394 support         no
libdirac enabled          no
libfaac enabled           no
libfaad enabled           no
libfaad dlopened          no
libgsm enabled            no
libmp3lame enabled        no
libnut enabled            no
libschroedinger enabled   no
libspeex enabled          no
libtheora enabled         no
libvorbis enabled         no
libx264 enabled           no
libxvid enabled           no

H_TeXMeX_H · 11-09-2008, 10:37 AM

sure you should enable some, but remember to get the dependencies first

donnied · 11-09-2008, 10:46 AM

I used checkinstall things seem to have worked. I'm using ffmpeg right now and it works. I'll check on compiling vlc.

--Side note: It seems to me that dh_make worked a little better at making debs a while ago, but recently I've had more success with checkinstall.

donnied · 11-09-2008, 10:56 AM

I'm compiling VLC now. For my configuration I'll use :

Code:

./configure --enable-x11 --enable-xvideo --disable-gtk --enable-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 --enable-live555 --with-live555-tree=/usr/lib/live --enable-caca --enable-skins --enable-skins2 --enable-alsa --disable-kde --enable-qt4 --enable-ncurses --enable-release

Actually I noticed that config would be wrong for me. I'm using KDE; I don't know how much that affects things. Instead I'll use:

Code:

./configure --enable-x11 --enable-xvideo --disable-gtk --enable-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 --enable-live555 --enable-caca --enable-skins --enable-skins2 --enable-alsa --enable-kde --enable-ncurses --enable-qt4 --enable-release

Oh,I also wanted to export some GCC flags for the architecture. I'll use:

Code:

export CFLAGS="-march=athlon64 -mtune=athlon64"

(which can also be added in the vlc-config file.)But it seems as if there should be some more flags.

In the mean time I notice I've hosed noatun. It worked well until yesterday and now even if I start it on the command line it quietly dies...

donnied · 11-09-2008, 11:17 AM

Well for the .configure of ffmpeg in order to enable swscale gpl has to be enabled. I don't know which is better. I like the sound of having swscale in vlc so I'll try that.

For ffmpeg:

Code:

./configure --enable-gpl --enable-swscale

H_TeXMeX_H · 11-09-2008, 12:18 PM

Either way you must either disable swscale in both or enable it in both.

donnied · 11-09-2008, 12:29 PM

Right. What do you think about using swscale?

Now when I make VLC I get the error message:

Code:

/usr/bin/ld: /usr/local/lib/libavcodec.a(allcodecs.o): relocation R_X86_64_32 against `aasc_decoder' can not be used when making a shared object; recompile with -fPIC
/usr/local/lib/libavcodec.a: could not read symbols: Bad value
collect2: ld returned 1 exit status

I'm not sure what to do about that.

donnied · 11-09-2008, 01:02 PM

Code:

Your FFmpeg library doesn't have the needed img_resample() function. You should rebuild it with software scaler disabled

Adding

Code:

 
--enable-share

seemed to fix that problem. I got VLC built and installed but then I got the following message:

Code:

vlc: error while loading shared libraries: libvlc.so.2: cannot open shared object file: No such file or directory