为什么Mplayer移植到板子上不能放视频？

板子是YC2440，音频不能放，视频加-nosound可以放，但没有声音，如果不加就不能放，出现如下信息：

[root@utu-linux /mnt]# ./mplayer1 fukua.avi
MPlayer 1.0pre7-3.3.2 (C) 2000-2005 MPlayer Team
CPU: ARM

Failed to open /dev/rtc: No such file or directory (it should be readable by the user.)
Playing fukua.avi.
AVI file format detected.
VIDEO: [avc1] 320x240 24bpp 18.000 fps 378.2 kbps (46.2 kbyte/s)
Clip info:
Software: MEncoder SVN-r29352(20090610-gcc4.3.3)
==========================================================================
Requested audio codec family [mp3] (afm=mp3lib) not available.
Enable it at compilation.
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400)
Selected audio codec: [ffmp3] afm:ffmpeg (FFmpeg MPEG layer-3 audio decoder)
==========================================================================
notice: Can't open /dev/tty: No such device or address
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh264] vfm:ffmpeg (FFmpeg H.264)
==========================================================================
Checking audio filter chain for 44100Hz/2ch/s16le -> 44100Hz/2ch/s16le...
AF_pre: 44100Hz/2ch/s16le
AO: [oss] 4audio_sync
4100Hz 2ch s16le (2 bps)
Building audio filter chain for 44100Hz/2ch/s16le -> 44100Hz/2ch/s16le...
Starting playback...


MPlayer interrupted by signal 8 in module: play_audio
- MPlayer crashed by bad usage of CPU/FPU/RAM.
Recompile MPlayer with --enable-debug and make a 'gdb' backtrace and
disassembly. Details in DOCS/HTML/en/bugreports_what.html#bugreports_crash.
- MPlayer crashed. This shouldn't happen.
It can be a bug in the MPlayer code _or_ in your drivers _or_ in your
gcc version. If you think it's MPlayer's fault, please read
DOCS/HTML/en/bugreports.html and follow the instructions there. We can't and
won't help unless you provide this information when reporting a possible bug.
[root@utu-linux /mnt]#