I tried this:
mencoder dvd://1 -chapter 4-4 -o test.avi -oac copy -ovc lavc -lavcopts vcodec=mpeg4
but the sharpness of the pictures was lost
I tried this:
mencoder dvd://1 -chapter 4-4 -o test_ffv1.avi -oac copy -ovc lavc -lavcopts vcodec=ffv1
but mencoder exited with
Code:
lagu2653@SuSEBurken:~/HemmaBio/Filmer> mencoder dvd://1 -chapter 4-4 -o test_ffv1.avi -oac copy -ovc lavc -lavcopts vcodec=ffv1
MEncoder SuSE Linux 9.3 (i686)-Packman-3.3.5 (C) 2000-2005 MPlayer Team
CPU: Advanced Micro Devices Athlon MP/XP Thoroughbred (Family: 6, Stepping: 1)
Detected cache-line size is 64 bytes
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
Compiled with runtime CPU detection - WARNING - this is not optimal!
To get best performance, recompile MPlayer with --disable-runtime-cpudetection.
File not found: 'frameno.avi'
Failed to open frameno.avi
Reading disc structure, please wait...
There are 1 titles on this DVD.
There are 16 chapters in this DVD title.
There are 1 angles in this DVD title.
DVD successfully opened.
success: format: 0 data: 0xBCA9000 - 0x10731800
MPEG-PS file format detected.
VIDEO: MPEG2 720x576 (aspect 2) 25.000 fps 8400.0 kbps (1050.0 kbyte/s)
[V] filefmt:2 fourcc:0x10000002 size:720x576 fps:25.00 ftime:=0.0400
==========================================================================
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
AC3: 2.0 (stereo) 48000 Hz 384.0 kbit/s
Using MMX optimized resampler
AUDIO: 48000 Hz, 2 ch, s16le, 384.0 kbit/25.00% (ratio: 48000->192000)
Selected audio codec: [a52] afm:liba52 (AC3-liba52)
==========================================================================
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1; -1 (-1=autodetect) osd: 1
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 720 x 576 (preferred csp: Mpeg PES)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
VDecoder init failed :(
Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder libmpeg2-v0.4.0b
Selected video codec: [mpeg12] vfm:libmpeg2 (MPEG-1 or 2 (libmpeg2))
==========================================================================
audiocodec: framecopy (format=2000 chans=2 rate=48000 bits=16 bps=48000 sample-1)
Writing AVI header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
VDec: vo config request - 720 x 576 (preferred csp: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
videocodec: libavcodec (720x576 fourcc=31564646 [FFV1])
[ffv1 @ 0x8576c80]this codec is under development, files encoded with it wont be decodeable with future versions!!!
use vstrict=-1 / -strict -1 to use it anyway
Could not open codec.
FATAL: Cannot initialize video driver.
Exiting...
Which codec should you use to compress video with an acceptable result?