D:\downloads\mplayer>mplayer -monitoraspect 16:10 d:\downloads\mirc\[SS-Eclipse]
_Kanon_-_05_(h264)_[0D9A0736].mkv
MPlayer CCCP-SVN-r20400-3.4.5 (C) 2000-2006 MPlayer Team
CPU: Intel(R) Pentium(R) M processor 1.70GHz (Family: 6, Model: 13, Stepping: 6)

CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNowEx: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
98 audio & 216 video codecs

Playing d:\downloads\mirc\[SS-Eclipse]_Kanon_-_05_(h264)_[0D9A0736].mkv.
[mkv] Track ID 1: video (V_MPEG4/ISO/AVC) "Kanon 05: demon's serenade", -vid 0
[mkv] Track ID 2: audio (A_VORBIS) "2.0 Vorbis", -aid 0, -alang jpn
[mkv] Track ID 3: subtitles (S_TEXT/ASS) "ASS", -sid 0, -slang eng
[mkv] Track ID 4: subtitles (S_TEXT/UTF8) "SRT", -sid 1, -slang eng
[mkv] Will play video track 1
Matroska file format detected.
VIDEO:  [avc1]  704x400  24bpp  23.976 fps    0.0 kbps ( 0.0 kbyte/s)
[ass] auto-open
[ass] Init
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 48000 Hz, 2 ch, s16le, 0.0 kbit/0.00% (ratio: 0->192000)
Selected audio codec: [ffvorbis] afm: ffmpeg (FFmpeg Vorbis decoder)
==========================================================================
AO: [dsound] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
VDec: vo config request - 704 x 400 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.76:1 - prescaling to correct movie aspect.
VO: [directx] 704x400 => 704x400 Planar YV12
A: 182.6 V: 182.6 A-V:  0.006 ct: -0.085   0/  0 27% 11%  1.0% 0 0
  =====  PAUSE  =====