I have a video file which I don't remember where I got from that opens on mplayer/VLC (Linux) but does not open on VLC (Windows 7). VLC is the latest version (1.1.9) on both.
Here is the output of mplayer:
MPlayer 1.0rc4-4.5.2 (C) 2000-2010 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 filename.flv.
libavformat file format detected.
[flv @ 0xfb5b60]invalid stream
[flv @ 0xfb5b60]Estimating duration from bitrate, this may be inaccurate
[lavf] stream 0: audio (unknown), -aid 0
[lavf] stream 1: video (h264), -vid 0
VIDEO: [H264] 320x240 0bpp 25.000 fps 0.0 kbps ( 0.0 kbyte/s)
Clip info:
audiodatarate: 0
audiosize: 0
canSeekToEnd: true
datasize: 5900880
duration: 230
framerate: 9
hasAudio: false
hasCuePoints: false
hasKeyframes: true
hasMetadata: true
hasVideo: true
height: 240
lasttimestamp: 230
metadatacreator: flvtool++ (Facebook, Motion project, dweatherford)
totalframes: 2105
videocodecid: 7
videodatarate: 204
videosize: 5866494
width: 320
open: No such file or directory
[MGA] Couldn't open: /dev/mga_vid
open: No such file or directory
[MGA] Couldn't open: /dev/mga_vid
[VO_TDFXFB] Can't open /dev/fb0: Permission denied.
[VO_3DFX] Unable to open /dev/3dfx.
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
Unknown/missing audio format -> no sound
ADecoder init failed :(
Cannot find codec for audio format 0x0.
Audio: no sound
Starting playback...
VLC gives me the following error on Linux:
[0x2da56c0] main decoder error: no suitable decoder module for fourcc `undf'. VLC probably does not support this sound or video format.
[0x2da56c0] main decoder error: No suitable decoder module
[0x2da56c0] main decoder error: VLC does not support the audio or video format "undf". Unfortunately there is no way for you to fix this.
In the above output I've used cvlc but the error is the same. This error appears only on Ubuntu. When I try it on Windows, VLC just crashes. Also, despite giving that error message on Ubuntu, vlc plays the video fine.
Anyway, the file seems broken, but for some reason it works on some players. I was wondering how I could fix it. I tried using mplayer with the -dumpstream and -dumpfile switches but that just gave me another broken file. I also tried mencoder with -oac copy -ovc copy and got a file that wouldn't play anywhere. Tried using ffmpeg -i file.flv test.avi and got another error and a useless file.
I'm thinking the problem lies with that flvtool++ from the mplayer output, maybe it messed up the file header/metadata when the file was created. Not sure how to fix it though.
