I'm having trouble getting kdenlive to output valid Ogg/Theora files. The render seems to go fine, but when I try to view the file I only get the first video frame or a black frame.

I'm using kdenlive 0.7.3 on kubuntu 9.04. I installed the libav*-unstripped library versions, re-ran the config wizard, and I can successfully export in AVI, MPEG2, MPEG4, FLV, and H.264. Ogg files made with OggConvert and ffmpeg2theora both work fine.

When I import the ogg file back into Kdenlive, I get only the first frame.

Here's the output from mplayer:

[code]
mplayer untitled.ogg
MPlayer 1.0rc2-4.3.3 (C) 2000-2007 MPlayer Team
CPU: AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ (Family: 15, Model: 35, Stepping: 2)
CPUflags: MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing untitled.ogg.
[Ogg] stream 0: video (Theora v3.2.1), -vid 0
[Ogg] stream 1: audio (Vorbis), -aid 0
Ogg file format detected.
VIDEO: [theo] 640x480 24bpp 29.970 fps 0.0 kbps ( 0.0 kbyte/s)
xscreensaver_disable: Could not find XScreenSaver window.
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
[theora @ 0xf95f40]Missing extradata!
Could not open codec.
VDecoder init failed :(
Opening video decoder: [theora] Theora/VP3
VDec: vo config request - 640 x 480 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
VO: [xv] 640x480 => 640x480 Planar YV12
Selected video codec: [theora] vfm: theora (Theora (free, reworked VP3))
==========================================================================
==========================================================================
Forced audio codec: mad
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 44100 Hz, 2 ch, s16le, 0.0 kbit/0.00% (ratio: 0->176400)
Selected audio codec: [ffvorbis] afm: ffmpeg (FFmpeg Vorbis decoder)
==========================================================================
AO: [pulse] Failed to connect to server: Connection refused
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
A: -0.3 V: 0.0 A-V: -0.381 ct: -0.003 1/ 1 ??% ??% ??,?% 0 0

Exiting... (End of file)
[/code]

and output from vlc:
[code]
VLC media player 0.9.9a Grishenko
[00000001] main libvlc debug: VLC media player - version 0.9.9a Grishenko - (c) 1996-2009 the VideoLAN team
[00000001] main libvlc debug: libvlc was configured with ./configure '--build=x86_64-linux-gnu' '--enable-maintainer-mode' '--enable-release' '--prefix=/usr' '--enable-libtool' '--enable-fast-install' '--with-binary-version=2ubuntu1' '--disable-update-check' '--disable-gnome' '--disable-gtk' '--disable-familiar' '--disable-fb' '--enable-ggi' '--enable-sdl' '--enable-esd' '--enable-mad' '--enable-jack' '--enable-pulse' '--enable-lirc' '--enable-a52' '--enable-aa' '--enable-dvbpsi' '--enable-mozilla' '--with-mozilla-pkg=libxul-plugin' '--disable-kde' '--enable-mp4' '--enable-dvb' '--disable-satellite' '--enable-ogg' '--enable-vorbis' '--enable-shout' '--enable-qt4' '--disable-slp' '--enable-flac' '--disable-skins' '--disable-basic-skins' '--enable-skins2' '--enable-freetype' '--enable-mkv' '--enable-speex' '--enable-caca' '--enable-live555' '--enable-libmpeg2' '--enable-fribidi' '--enable-cdio' '--enable-mod' '--enable-theora' '--enable-modplug' '--enable-dvdnav' '--enable-gnutls' '--enable-ffmpeg' '--enable-ncurses' '--enable-smb' '--disable-gnomevfs' '--enable-bonjour' '--enable-mpc' '--enable-vcd' '--enable-vcdx' '--enable-notify' '--enable-twolame' '--enable-faad' '--disable-zvbi' '--enable-telx' '--enable-mediacontrol-bindings' '--disable-atmo' '--enable-taglib' '--enable-libass' '--enable-libdca' '--enable-realrtsp' '--disable-dv' '--enable-x264' '--enable-alsa' '--enable-v4l' '--enable-v4l2' '--enable-pvr' '--enable-svgalib' '--enable-dvd' '--without-dvdcss' 'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2' 'LDFLAGS=-Wl,--as-needed' 'CPPFLAGS=' 'CXXFLAGS=-g -O2'
[00000001] main libvlc debug: translation test: code is "C"
TagLib: Vorbis::File::read() - Could not find the Vorbis comment header.
[/code]




libmlt is 0.3.8-0ubuntu2 and libmlt++ is still 0.3.8-0ubuntu1 - could that be the problem?

Unfortunately, there were problems rendering to Ogg Theora in older releases of MLT and Kdenlive, yours included. You must try to use Kdenlive 0.7.5 with MLT 0.4.4.