il ne prend pas les fichiers mpeg2 en entrée, il serait sympa de prendre le nom du fichier pour titre de la vidéo.

Est-ce que tu peux coller le résultat de la commande suivante chaque fois que tu as un pb sur un fichier ?
mplayer -vo null -ao null -frames 0 -identify fichier.ext

cyrille@fedora:~$ mplayer -vo null -ao null -frames 0 -identify /home/cyrille/1.mpg
MPlayer SVN-r29800-4.4.2 © 2000-2009 MPlayer Team
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 /home/cyrille/1.mpg.
ID_VIDEO_ID=0
ID_AUDIO_ID=0
MPEG-PS file format detected.
VIDEO: MPEG2 720x576 (aspect 2) 25.000 fps 7500.0 kbps (937.5 kbyte/s)
ID_FILENAME=/home/cyrille/1.mpg
ID_DEMUXER=mpegps
ID_VIDEO_FORMAT=0x10000002
ID_VIDEO_BITRATE=7500000
ID_VIDEO_WIDTH=720
ID_VIDEO_HEIGHT=576
ID_VIDEO_FPS=25.000
ID_VIDEO_ASPECT=0.0000
ID_AUDIO_FORMAT=80
ID_AUDIO_BITRATE=0
ID_AUDIO_RATE=0
ID_AUDIO_NCH=0
ID_LENGTH=652.75
ID_SEEKABLE=1
ID_CHAPTERS=0
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
Movie-Aspect is undefined - no prescaling applied.
VO: [null] 720x576 => 720x576 Mpeg PES
Selected video codec: [mpegpes] vfm: mpegpes (MPEG-PES output (.mpg or DXR3/IVTV/DVB/V4L2 card))
==========================================================================
ID_VIDEO_CODEC=mpegpes
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 48000 Hz, 2 ch, s16le, 224.0 kbit/14.58% (ratio: 28000->192000)
ID_AUDIO_BITRATE=224000
ID_AUDIO_RATE=48000
ID_AUDIO_NCH=2
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
AO: [null] 48000Hz 2ch s16le (2 bytes per sample)
ID_AUDIO_CODEC=mp3
Starting playback...


Exiting... (End of file)
ID_EXIT=EOF
cyrille@fedora:~$

message du logiciel : ** Message: ID_VIDEO_ID
** Message: ID_AUDIO_ID
** Message: ID_CLIP_INFO_NAME
** Message: ID_CLIP_INFO_NAME
** Message: ID_VIDEO_FORMAT
** Message: ID_VIDEO_ID
avec Could not open the media The media is not in the appropriate format

et

cyrille@fedora:~$ mplayer -vo null -ao null -frames 0 -identify /home/cyrille/2.avi
MPlayer SVN-r29800-4.4.2 © 2000-2009 MPlayer Team
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 /home/cyrille/2.avi.
AVI file format detected.
ID_VIDEO_ID=0
[aviheader] Video stream found, -vid 0
ID_AUDIO_ID=1
[aviheader] Audio stream found, -aid 1
VIDEO: [MJPG] 640x480 24bpp 20.000 fps 10815.0 kbps (1320.2 kbyte/s)
Clip info:
Digitization Time: Sat Aug 8 19:03:54 2009

ID_CLIP_INFO_NAME0=Digitization Time
ID_CLIP_INFO_VALUE0=Sat Aug 8 19:03:54 2009

Software: CanonMVI06
ID_CLIP_INFO_NAME1=Software
ID_CLIP_INFO_VALUE1=CanonMVI06
ID_CLIP_INFO_N=2
ID_FILENAME=/home/cyrille/2.avi
ID_DEMUXER=avi
ID_VIDEO_FORMAT=MJPG
ID_VIDEO_BITRATE=10815040
ID_VIDEO_WIDTH=640
ID_VIDEO_HEIGHT=480
ID_VIDEO_FPS=20.000
ID_VIDEO_ASPECT=0.0000
ID_AUDIO_FORMAT=1
ID_AUDIO_BITRATE=88192
ID_AUDIO_RATE=0
ID_AUDIO_NCH=0
ID_LENGTH=0.05
ID_SEEKABLE=1
ID_CHAPTERS=0
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Unsupported PixelFormat -1
Selected video codec: [ffmjpeg] vfm: ffmpeg (FFmpeg MJPEG)
==========================================================================
ID_VIDEO_CODEC=ffmjpeg
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 11024 Hz, 1 ch, u8, 88.2 kbit/100.00% (ratio: 11024->11024)
ID_AUDIO_BITRATE=88192
ID_AUDIO_RATE=11024
ID_AUDIO_NCH=1
Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
==========================================================================
AO: [null] 11024Hz 1ch u8 (1 bytes per sample)
ID_AUDIO_CODEC=pcm
Starting playback...


Exiting... (End of file)
ID_EXIT=EOF

Tu peux aussi me copier/coller le résultat pour le pink.avi de avant-hier ?

cyrille@fedora:~$ mplayer -vo null -ao null -frames 0 -identify /home/cyrille/Temp/pink.mkv
MPlayer SVN-r29800-4.4.2 © 2000-2009 MPlayer Team
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 /home/cyrille/Temp/pink.mkv.
ID_VIDEO_ID=0
[mkv] Track ID 1: video (V_MPEG4/ISO/AVC), -vid 0
ID_AUDIO_ID=0
ID_AID_0_LANG=eng
[mkv] Track ID 2: audio (A_AC3), -aid 0, -alang eng
[mkv] Will play video track 1.
Matroska file format detected.
VIDEO: [avc1] 640x352 24bpp 29.970 fps 0.0 kbps ( 0.0 kbyte/s)
ID_FILENAME=/home/cyrille/Temp/pink.mkv
ID_DEMUXER=mkv
ID_VIDEO_FORMAT=avc1
ID_VIDEO_BITRATE=0
ID_VIDEO_WIDTH=640
ID_VIDEO_HEIGHT=352
ID_VIDEO_FPS=29.970
ID_VIDEO_ASPECT=1.8182
ID_AUDIO_FORMAT=8192
ID_AUDIO_BITRATE=0
ID_AUDIO_RATE=48000
ID_AUDIO_NCH=2
ID_LENGTH=4537.53
ID_SEEKABLE=1
ID_CHAPTERS=0
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
ID_VIDEO_CODEC=ffh264
==========================================================================
Opening audio decoder: [liba52] AC3 decoding with liba52
No accelerated IMDCT transform found
AUDIO: 48000 Hz, 2 ch, floatle, 192.0 kbit/6.25% (ratio: 24000->384000)
ID_AUDIO_BITRATE=192000
ID_AUDIO_RATE=48000
ID_AUDIO_NCH=2
Selected audio codec: [a52] afm: liba52 (AC3-liba52)
==========================================================================
AO: [null] 48000Hz 2ch floatle (4 bytes per sample)
ID_AUDIO_CODEC=a52
Starting playback...


Exiting... (End of file)
ID_EXIT=EOF

Ce devrait être corrigé.