用mplayer放avi时出现的问题

nathaniel

mplayer aa.avi
MPlayer 1.0pre6-3.3.4 (C) 2000-2004 MPlayer Team
CPU: Intel  (Family: 6, Stepping: 6)
Detected cache-line size is 64 bytes
CPUflags:  MMX: 1 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 0
Compiled for x86 CPU with extensions: MMX SSE



Try adding "echo 1024 > /proc/sys/dev/rtc/max-user-freq" to your system startup scripts.
Opening joystick device /dev/input/js0
Can't open joystick device /dev/input/js0 : 没有那个文件或目录
Setting up LIRC support...
Playing 007-101.avi.
AVI file format detected.
VIDEO:  [tscc]  800x600  32bpp  15.000 fps   66.8 kbps ( 8.2 kbyte/s)
==========================================================================
Trying to force audio codec driver family libmad...
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 8000 Hz, 1 ch, 16 bit (0x10), ratio: 16000->16000 (128.0 kbit)
Selected audio codec: [pcm] afm:pcm (Uncompressed PCM)
==========================================================================
vo: X11 running at 1024x768 with depth 24 and 32 bpp (":0.0" => local display)
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffcamtasia] vfm:ffmpeg (TechSmith Camtasia Screen Codec (native))
==========================================================================
Checking audio filter chain for 8000Hz/1ch/16bit -> 8000Hz/2ch/16bit...
AF_pre: af format: 2 bps, 1 ch, 8000 hz, little endian signed int
AF_pre: 8000Hz 1ch Signed 16-bit (Little-Endian)
alsa-init: got device=0, subdevice=0
alsa-init: 1 soundcard found, using: default
alsa: 8000 Hz/2 channels/4 bpf/8192 bytes buffer/Signed 16 bit Little Endian
AO: [alsa] 8000Hz 2ch Signed 16-bit (Little-Endian) (2 bps)
Building audio filter chain for 8000Hz/1ch/16bit -> 8000Hz/2ch/16bit...
Starting playback...
VDec: vo config request - 800 x 600 (preferred csp: BGRA)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
mp_image: Unknown out_fmt: 0x0

alsa-uninit: pcm closed

Exiting... (End of file)


mplayer -vo x11 aa.avi
MMX2 supported but disabled
SSE2 supported but disabled
Linux RTC init error in ioctl (rtc_irqp_set 1024): 权限不够
Can't init input joystick
mplayer: could not connect to socket
mplayer: 没有那个文件或目录
Failed to open LIRC support.
You will not be able to use your remote control.
The selected video_out device is incompatible with this codec.

FATAL: Could not initialize video filters (-vf) or video output (-vo).

那个-vf是什么作用的，我从来没有用过