ffmpeg encoding wmv3 audio+video to flv

fylnq · 02-19-2010, 09:26 AM

Hi,

I'm trying to encode a wmv file to flv with ffmpeg. The video codec is WMV3 and the audio codec is wmap (Windows Media Audio Professional).

The command I use is:

Code:

/usr/bin/ffmpeg -i <input file>.wmv -s 640x350 -b 1024k -r 25 -ar 44100 -ac 2 -y <output file>.flv

Output:

Code:

FFmpeg version 0.5-svn17737+3:0.svn20090303-1ubuntu6, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  configuration: --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --extra-version=svn17737+3:0.svn20090303-1ubuntu6 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --disable-stripping --disable-vhook --enable-libdc1394 --enable-shared --disable-static
  libavutil     49.15. 0 / 49.15. 0
  libavcodec    52.20. 0 / 52.20. 0
  libavformat   52.31. 0 / 52.31. 0
  libavdevice   52. 1. 0 / 52. 1. 0
  libavfilter    0. 4. 0 /  0. 4. 0
  libswscale     0. 7. 1 /  0. 7. 1
  libpostproc   51. 2. 0 / 51. 2. 0
  built on Apr 10 2009 23:20:33, gcc: 4.3.3
[wmv3 @ 0xb32c00]Extra data: 8 bits left, value: 0

Seems stream 0 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 29.97 (30000/1001)
Input #0, asf, from '<input file>.wmv':
  Duration: 00:02:31.02, start: 3.000000, bitrate: 9600 kb/s
    Stream #0.0: Video: wmv3, yuv420p, 1920x1080, 9000 kb/s, 29.97 tbr, 1k tbn, 1k tbc
    Stream #0.1: Audio: 0x0162, 48000 Hz, 5.1, s16, 384 kb/s
Output #0, flv, to 'test.flv':
    Stream #0.0: Video: flv, yuv420p, 640x350, q=2-31, 1024 kb/s, 90k tbn, 25 tbc
    Stream #0.1: Audio: libmp3lame, 44100 Hz, stereo, s16, 64 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1
[wmv3 @ 0xb32c00]Extra data: 8 bits left, value: 0
Unsupported codec (id=86056) for input stream #0.1

As you can probably see the audio codec is not supported. Is there a way to encode WMV3+wmap with ffmpeg or any other tool in Linux?

Windows Media Encoder in Windows is able to encode such files to a supported codec. For example: WMV3+WMA2/WMV2+WMA2, I could then encode it in Linux. I'm trying to find a way to directly encode WMV3+wmap in Linux.

Thanks in advance,

FY

H_TeXMeX_H · 02-19-2010, 09:34 AM

Maybe you don't have lame installed ?

fylnq · 02-19-2010, 09:46 AM

lame is installed.

Code:

# ldd /usr/bin/ffmpeg
        linux-vdso.so.1 =>  (0x00007fff4dbff000)
        libavfilter.so.0 => /usr/lib/libavfilter.so.0 (0x00007fb663193000)
        libpostproc.so.51 => /usr/lib/libpostproc.so.51 (0x00007fb662f83000)
        libswscale.so.0 => /usr/lib/libswscale.so.0 (0x00007fb662d57000)
        libavdevice.so.52 => /usr/lib/libavdevice.so.52 (0x00007fb662b4d000)
        libavformat.so.52 => /usr/lib/libavformat.so.52 (0x00007fb662855000)
        libavcodec.so.52 => /usr/lib/libavcodec.so.52 (0x00007fb661e99000)
        libavutil.so.49 => /usr/lib/libavutil.so.49 (0x00007fb661c8a000)
        libm.so.6 => /lib/libm.so.6 (0x00007fb661a05000)
        libpthread.so.0 => /lib/libpthread.so.0 (0x00007fb6617e9000)
        libc.so.6 => /lib/libc.so.6 (0x00007fb661477000)
        libdc1394.so.22 => /usr/lib/libdc1394.so.22 (0x00007fb661209000)
        libasound.so.2 => /usr/lib/libasound.so.2 (0x00007fb660f29000)
        libX11.so.6 => /usr/lib/libX11.so.6 (0x00007fb660c22000)
        libXext.so.6 => /usr/lib/libXext.so.6 (0x00007fb660a10000)
        libz.so.1 => /lib/libz.so.1 (0x00007fb6607f8000)
        libfaac.so.0 => /usr/lib/libfaac.so.0 (0x00007fb6605e6000)
        libfaad.so.0 => /usr/lib/libfaad.so.0 (0x00007fb6603a6000)
        libgsm.so.1 => /usr/lib/libgsm.so.1 (0x00007fb660199000)
        libmp3lame.so.0 => /usr/lib/libmp3lame.so.0 (0x00007fb65ff20000)
        libschroedinger-1.0.so.0 => /usr/lib/libschroedinger-1.0.so.0 (0x00007fb65fcac000)
        libspeex.so.1 => /usr/lib/libspeex.so.1 (0x00007fb65fa92000)
        libtheora.so.0 => /usr/lib/libtheora.so.0 (0x00007fb65f845000)
        libvorbisenc.so.2 => /usr/lib/libvorbisenc.so.2 (0x00007fb65f46b000)
        libvorbis.so.0 => /usr/lib/libvorbis.so.0 (0x00007fb65f23e000)
        libx264.so.65 => /usr/lib/libx264.so.65 (0x00007fb65efac000)
        libxvidcore.so.4 => /usr/lib/libxvidcore.so.4 (0x00007fb65ecbb000)
        /lib64/ld-linux-x86-64.so.2 (0x00007fb663398000)
        libraw1394.so.8 => /usr/lib/libraw1394.so.8 (0x00007fb65eab4000)
        libdl.so.2 => /lib/libdl.so.2 (0x00007fb65e8b0000)
        librt.so.1 => /lib/librt.so.1 (0x00007fb65e6a8000)
        libxcb.so.1 => /usr/lib/libxcb.so.1 (0x00007fb65e48c000)
        libXau.so.6 => /usr/lib/libXau.so.6 (0x00007fb65e289000)
        liboil-0.3.so.0 => /usr/lib/liboil-0.3.so.0 (0x00007fb65dffa000)
        libogg.so.0 => /usr/lib/libogg.so.0 (0x00007fb65ddf4000)
        libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0x00007fb65dbef000)

Code:

# ls -la /usr/lib/libmp3lame.so.0
lrwxrwxrwx 1 root root 19 2010-02-18 18:23 /usr/lib/libmp3lame.so.0 -> libmp3lame.so.0.0.0

WMAP is probably a closed source codec. I wonder if there are any binaries for Linux. For example: Real Media has binary codecs available for .rm video.

H_TeXMeX_H · 02-19-2010, 12:39 PM

In that case you may be able to do it with mencoder.

fylnq · 02-20-2010, 08:46 AM

Tried mencoder, it doesn't encode the audio.

H_TeXMeX_H · 02-20-2010, 08:51 AM

That's quite odd, is this video or a similar video available online somewhere so I can try converting it ? Does mplayer play this video, or other video player in Linux ?

fylnq · 02-21-2010, 09:50 AM

Haven't tried to play it with mplayer, did try VLC. VLC only shows video, audio isn't available. There are samples available at http://www.microsoft.com/windows/win...tshowcase.aspx which use the wmap codec.

Code:

http://download.microsoft.com/download/4/1/b/41b10a4f-f4f4-4692-aa44-a458d0047e91/Robotica_720.exe

H_TeXMeX_H · 02-21-2010, 11:40 AM

Ok, here's how to do it:

Code:

mplayer Robotica_720.wmv -novideo -ao pcm:file=output.wav
sox -r 48000 -f --bits 32 -c 6 output.wav -r 44100 -s --bits 16 -c 2 fixed.wav
lame -V2 fixed.wav output.mp3
ffmpeg -i Robotica_720.wmv -vcodec flv -b 260k -s 400x226 -r 29.917 -aspect 16:9 -g 300 -an noaudio.flv
ffmpeg -i noaudio.flv -i output.mp3 output.flv

Whew, now that was difficult, but there you go, it works.

fylnq · 02-21-2010, 04:37 PM

Thanks! I'll try that out tomorrow.

fylnq · 02-22-2010, 04:44 AM

I get the following error when I try to convert with mplayer.

Code:

# mplayer <input file>.wmv -novideo -ao pcm:file=output.wav
MPlayer 1.0rc2-4.3.3 (C) 2000-2007 MPlayer Team
CPU: Intel(R) Xeon(R) CPU           E3110  @ 3.00GHz (Family: 6, Model: 23, Stepping: 10)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 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 <input file>.wmv.
ASF file format detected.
[asfheader] Video stream found, -vid 1
[asfheader] Audio stream found, -aid 2
==========================================================================
Forced audio codec: mad
Requested audio codec family [wma9dmo] (afm=dmo) not available.
Enable it at compilation.
Requested audio codec family [wmadmo] (afm=dmo) not available.
Enable it at compilation.
Cannot find codec for audio format 0x162.
Read DOCS/HTML/en/codecs.html!
Audio: no sound
Video: no video


Exiting... (End of file)

The following codecs are available at /usr/lib/win32 .

Code:

acelpdec.ax
alf2cd.acm
aslcodec_dshow.dll
AvidQTAVUICodec.qtx
BeHereiVideo.qtx
CLRVIDDC.DLL
clrviddd.dll
cook.so
CtWbJpg.DLL
DECVW_32.DLL
drvc.so
dspr.so.6.0
iac25_32.ax
icmw_32.dll
ir41_32.dll
ir50_32.dll
ivvideo.dll
jp2avi.dll
LCMW2.dll
LCODCCMW2E.dll
lhacm.acm
lsvxdec.dll
m3jp2k32.dll
mi-sc4.acm
msh261.drv
msms001.vwp
msscds32.ax
nsrt2432.acm
qpeg32.dll
qtmlClient.dll
QuickTimeEssentials.qtx
QuickTimeInternetExtras.qtx
QuickTime.qts
README
rt32dcmp.dll
sipr.so
sipr.so.6.0
tokf.so.6.0
tokr.so.6.0
tvqdec.dll
VDODEC32.dll
vdowave.drv
vid_3ivX.xa
ViVD2.dll
vivog723.acm
voxmsdec.ax
vp4vfw.dll
vp6vfw.dll
vp7vfw.dll
vssh264core.dll
vssh264dec.dll
vssh264.dll
vsshdsd.dll
vsslight.dll
vsswlt.dll
wma9dmod.dll
wmadmod.dll
wmsdmod.dll
wmspdmod.dll
wmv9dmod.dll
wmvadvd.dll
wmvdmod.dll
wnvwinx.dll
wvc1dmod.dll
xanlib.dll

H_TeXMeX_H · 02-22-2010, 05:01 AM

Hmm, looks like an old version of mplayer, and possibly the codecs can't be found or can't be used.

Well, here's another variant of the command that doesn't use mplayer:

Code:

ffmpeg -i Robotica_720.wmv -vn -acodec pcm_s16le out.wav
sox -r 48000 -c 6 out.wav -r 44100 -c 2 fixed.wav
lame -V2 fixed.wav output.mp3
ffmpeg -i Robotica_720.wmv -vcodec flv -b 260k -s 400x226 -r 29.917 -aspect 16:9 -g 300 -an noaudio.flv
ffmpeg -i noaudio.flv -i output.mp3 output.flv

Try that.

fylnq · 02-22-2010, 06:17 AM

That won't work either. What are the configure options of your ffmpeg binary? Mine are:

Code:

 configuration: --enable-gpl --enable-postproc --enable-swscale 
--enable-x11grab --extra-version=svn17737+3:0.svn20090303-1ubuntu6 --prefix=/usr --enable-avfilter --enable-avfilter-lavf 
--enable-libgsm --enable-libschroedinger 
--enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --disable-stripping --disable-vhook 
--enable-libdc1394 --enable-shared --disable-static

And what do you get when you type:

Code:

ldd /usr/bin/ffmpeg

H_TeXMeX_H · 02-22-2010, 06:43 AM

Code:

  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --enable-static --enable-shared --enable-gpl --enable-nonfree --enable-postproc --enable-avfilter --enable-avfilter-lavf --enable-pthreads --enable-x11grab --enable-libfaac --enable-libfaad --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-libschroedinger --enable-libspeex --enable-hardcoded-tables --enable-memalign-hack --enable-pic --arch=x86_64

Code:

bash-3.1$ ldd /usr/bin/ffmpeg
	linux-vdso.so.1 =>  (0x00007fff36bff000)
	libavfilter.so.1 => /usr/lib64/libavfilter.so.1 (0x00007f3f934e7000)
	libpostproc.so.51 => /usr/lib64/libpostproc.so.51 (0x00007f3f932d8000)
	libavdevice.so.52 => /usr/lib64/libavdevice.so.52 (0x00007f3f930cf000)
	libavformat.so.52 => /usr/lib64/libavformat.so.52 (0x00007f3f92e13000)
	libavcodec.so.52 => /usr/lib64/libavcodec.so.52 (0x00007f3f921c0000)
	libavutil.so.50 => /usr/lib64/libavutil.so.50 (0x00007f3f91faf000)
	libswscale.so.0 => /usr/lib64/libswscale.so.0 (0x00007f3f91d7c000)
	libm.so.6 => /lib64/libm.so.6 (0x00007f3f91af7000)
	libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f3f918db000)
	libc.so.6 => /lib64/libc.so.6 (0x00007f3f9156b000)
	libasound.so.2 => /usr/lib64/libasound.so.2 (0x00007f3f9128a000)
	libX11.so.6 => /usr/lib64/libX11.so.6 (0x00007f3f90f51000)
	libXext.so.6 => /usr/lib64/libXext.so.6 (0x00007f3f90d3f000)
	libXfixes.so.3 => /usr/lib64/libXfixes.so.3 (0x00007f3f90b3a000)
	libz.so.1 => /usr/lib64/libz.so.1 (0x00007f3f90926000)
	libbz2.so.1 => /lib64/libbz2.so.1 (0x00007f3f90716000)
	libfaac.so.0 => /usr/lib64/libfaac.so.0 (0x00007f3f90505000)
	libfaad.so.2 => /usr/lib64/libfaad.so.2 (0x00007f3f902c4000)
	libmp3lame.so.0 => /usr/lib64/libmp3lame.so.0 (0x00007f3f9004f000)
	libschroedinger-1.0.so.0 => /usr/lib64/libschroedinger-1.0.so.0 (0x00007f3f8fdcb000)
	libspeex.so.1 => /usr/lib64/libspeex.so.1 (0x00007f3f8fbb3000)
	libtheoraenc.so.1 => /usr/lib64/libtheoraenc.so.1 (0x00007f3f8f97e000)
	libtheoradec.so.1 => /usr/lib64/libtheoradec.so.1 (0x00007f3f8f765000)
	libvorbisenc.so.2 => /usr/lib64/libvorbisenc.so.2 (0x00007f3f8f38a000)
	libvorbis.so.0 => /usr/lib64/libvorbis.so.0 (0x00007f3f8f156000)
	libx264.so.83 => /usr/lib64/libx264.so.83 (0x00007f3f8eec2000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f3f936f0000)
	libdl.so.2 => /lib64/libdl.so.2 (0x00007f3f8ecbe000)
	librt.so.1 => /lib64/librt.so.1 (0x00007f3f8eab6000)
	libxcb.so.1 => /usr/lib64/libxcb.so.1 (0x00007f3f8e89b000)
	libXau.so.6 => /usr/lib64/libXau.so.6 (0x00007f3f8e699000)
	libXdmcp.so.6 => /usr/lib64/libXdmcp.so.6 (0x00007f3f8e494000)
	liboil-0.3.so.0 => /usr/lib64/liboil-0.3.so.0 (0x00007f3f8e205000)
	libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00007f3f8defe000)
	libgcc_s.so.1 => /usr/lib64/libgcc_s.so.1 (0x00007f3f8dce7000)
	libogg.so.0 => /usr/lib64/libogg.so.0 (0x00007f3f8dae2000)

fylnq · 02-22-2010, 08:29 AM

I've rebuilt ffmpeg from source (ffmpeg 0.5) with those configuration options. It still won't detect the audio codec for some reason.

Code:

# ffmpeg -i <input file>.wmv

Code:

FFmpeg version 0.5, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --enable-static --enable-shared --enable-gpl --enable-nonfree --enable-postproc --enable-avfilter --enable-avfilter-lavf --enable-pthreads --enable-x11grab --enable-libfaac --enable-libfaad --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-libschroedinger --enable-libspeex --enable-hardcoded-tables --enable-memalign-hack --arch=x86_64 --enable-libgsm --disable-stripping --enable-swscale --enable-libdc1394
  libavutil     49.15. 0 / 49.15. 0
  libavcodec    52.20. 0 / 52.20. 0
  libavformat   52.31. 0 / 52.31. 0
  libavdevice   52. 1. 0 / 52. 1. 0
  libavfilter    0. 4. 0 /  0. 4. 0
  libswscale     0. 7. 1 /  0. 7. 1
  libpostproc   51. 2. 0 / 51. 2. 0
  built on Feb 22 2010 14:28:50, gcc: 4.3.3

Seems stream 1 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 23.98 (24000/1001)
Input #0, asf, from '<input file>.wmv':
  Duration: 00:00:17.65, start: 3.000000, bitrate: 7354 kb/s
    Stream #0.0: Audio: 0x0162, 48000 Hz, 5.1, s16, 384 kb/s
    Stream #0.1: Video: wmv3, yuv420p, 1280x720, 6500 kb/s, 23.98 tbr, 1k tbn, 1k tbc
At least one output file must be specified

As you can see the audio codec is shown as 0x0162.

Code:

# ffmpeg -i <input file>.wmv -vn -acodec pcm_s16le out.wav
FFmpeg version 0.5, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --enable-static --enable-shared --enable-gpl --enable-nonfree --enable-postproc --enable-avfilter --enable-avfilter-lavf --enable-pthreads --enable-x11grab --enable-libfaac --enable-libfaad --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-libschroedinger --enable-libspeex --enable-hardcoded-tables --enable-memalign-hack --arch=x86_64 --enable-libgsm --disable-stripping --enable-swscale --enable-libdc1394
  libavutil     49.15. 0 / 49.15. 0
  libavcodec    52.20. 0 / 52.20. 0
  libavformat   52.31. 0 / 52.31. 0
  libavdevice   52. 1. 0 / 52. 1. 0
  libavfilter    0. 4. 0 /  0. 4. 0
  libswscale     0. 7. 1 /  0. 7. 1
  libpostproc   51. 2. 0 / 51. 2. 0
  built on Feb 22 2010 14:28:50, gcc: 4.3.3

Seems stream 1 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 23.98 (24000/1001)
Input #0, asf, from '<input file>.wmv':
  Duration: 00:00:17.65, start: 3.000000, bitrate: 7354 kb/s
    Stream #0.0: Audio: 0x0162, 48000 Hz, 5.1, s16, 384 kb/s
    Stream #0.1: Video: wmv3, yuv420p, 1280x720, 6500 kb/s, 23.98 tbr, 1k tbn, 1k tbc
Output #0, wav, to 'out.wav':
    Stream #0.0: Audio: pcm_s16le, 48000 Hz, 5.1, s16, 4608 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
Unsupported codec (id=86056) for input stream #0.0

Code:

 linux-vdso.so.1 =>  (0x00007fffe5712000)
        libavfilter.so.0 => /usr/lib/libavfilter.so.0 (0x00007fe66a6bc000)
        libpostproc.so.51 => /usr/lib/libpostproc.so.51 (0x00007fe66a4ac000)
        libswscale.so.0 => /usr/lib/libswscale.so.0 (0x00007fe66a280000)
        libavdevice.so.52 => /usr/lib/libavdevice.so.52 (0x00007fe66a076000)
        libavformat.so.52 => /usr/lib/libavformat.so.52 (0x00007fe669d7e000)
        libavcodec.so.52 => /usr/lib/libavcodec.so.52 (0x00007fe6693c5000)
        libavutil.so.49 => /usr/lib/libavutil.so.49 (0x00007fe6691b6000)
        libm.so.6 => /lib/libm.so.6 (0x00007fe668f31000)
        libpthread.so.0 => /lib/libpthread.so.0 (0x00007fe668d15000)
        libc.so.6 => /lib/libc.so.6 (0x00007fe6689a3000)
        libdc1394_control.so.13 => /usr/lib/libdc1394_control.so.13 (0x00007fe668793000)
        libasound.so.2 => /usr/lib/libasound.so.2 (0x00007fe6684b3000)
        libX11.so.6 => /usr/lib/libX11.so.6 (0x00007fe6681ac000)
        libXext.so.6 => /usr/lib/libXext.so.6 (0x00007fe667f9a000)
        libz.so.1 => /lib/libz.so.1 (0x00007fe667d82000)
        libdl.so.2 => /lib/libdl.so.2 (0x00007fe667b7e000)
        libfaac.so.0 => /usr/lib/libfaac.so.0 (0x00007fe66796c000)
        libfaad.so.0 => /usr/lib/libfaad.so.0 (0x00007fe66772c000)
        libgsm.so.1 => /usr/lib/libgsm.so.1 (0x00007fe66751f000)
        libmp3lame.so.0 => /usr/lib/libmp3lame.so.0 (0x00007fe6672a6000)
        libschroedinger-1.0.so.0 => /usr/lib/libschroedinger-1.0.so.0 (0x00007fe667032000)
        libspeex.so.1 => /usr/lib/libspeex.so.1 (0x00007fe666e18000)
        libtheora.so.0 => /usr/lib/libtheora.so.0 (0x00007fe666bcb000)
        libvorbisenc.so.2 => /usr/lib/libvorbisenc.so.2 (0x00007fe6667f1000)
        libvorbis.so.0 => /usr/lib/libvorbis.so.0 (0x00007fe6665c4000)
        libx264.so.65 => /usr/lib/libx264.so.65 (0x00007fe666332000)
        libxvidcore.so.4 => /usr/lib/libxvidcore.so.4 (0x00007fe666041000)
        /lib64/ld-linux-x86-64.so.2 (0x00007fe66a8c1000)
        libraw1394.so.8 => /usr/lib/libraw1394.so.8 (0x00007fe665e3a000)
        librt.so.1 => /lib/librt.so.1 (0x00007fe665c32000)
        libxcb.so.1 => /usr/lib/libxcb.so.1 (0x00007fe665a16000)
        libXau.so.6 => /usr/lib/libXau.so.6 (0x00007fe665813000)
        liboil-0.3.so.0 => /usr/lib/liboil-0.3.so.0 (0x00007fe665584000)
        libogg.so.0 => /usr/lib/libogg.so.0 (0x00007fe66537e000)
        libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0x00007fe665179000)

H_TeXMeX_H · 02-22-2010, 12:11 PM

Yeah, try rebuilding mplayer and use that, it should be able to dump the audio if it can play the audio. I use the svn mplayer, and make sure to compile it with the right '--codecsdir=' option.