[MPlayer-users] skipping every even frame

[Arpi]

Hi,

field-based vob encoding doesn't work in 3-pass (separated audio and video
encoding) mode. to detect fields it required to decode vob in 1st pass, but
audio-only encoding doesn't decode it.

> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> Encoding in one pass is OK. But mencoder skips every even frame when I try
> first (or three) pass encoding. I have already encoded some DVDs, using
> three pass encoding, and did have any problem.
> 
> This command runs fine :
> 
> mencoder -dvd 1 -alang fr -o video.avi -ovc lavc -lavcopts vc
> odec=mpeg4:vhq:vbitrate=1800 -oac copy
> 
> 
> This command skips frames :
> 
> mencoder -dvd $ -alang fr -ovc frameno -oac mp3lame -o frameno.avi.
> 
> Here's the "full" output :
> 
> Using GNU internationalization
> Original domain: messages
> Original dirname: /usr/share/locale
> Current domain: mplayer
> Current dirname: /usr/share/locale
> 
> 
> MEncoder 0.90pre9-2.95.4 (C) 2000-2002 Arpad Gereoffy (see DOCS!)
> 
> CPU: Advanced Micro Devices Athlon 4 PM Palomino/Athlon MP Mu
> ltiprocessor/Athlon XP eXtreme Performance (Family: 6, Stepping: 2)
> CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
> Reading /home/asdrad/.mplayer/codecs.conf: 38 audio & 110 video codecs
> File not found: 'frameno.avi'
> font: can't open file: /home/asdrad/.mplayer/font/font.desc
> Font /usr/share/mplayer/font/font.desc loaded successfully! (206 chars)
> Using CSS Key-cache dir: /home/asdrad/.mplayer/DVDKeys/DVDVOLUME
> Reading disc structure, please wait...
> There are 69 titles on this DVD.
> There are 17 chapters in this DVD title.
> There are 1 angles in this DVD title.
> DVD successfully opened!
> success: format: 0  data: 0x0 - 0x2A981000
> Selected DVD audio channel: 128 language: fr
> Detected MPEG-PS file format!
> VIDEO:  MPEG2  720x576  (aspect 3)  25.00 fps  7500.0 kbps (937.5 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: 5.0 (3f+2r)  48000 Hz  448.0 kbit/s
> Using MMX optimized resampler
> AUDIO: 48000 Hz, 2 ch, 16 bit (0x10), ratio: 56000->192000 (448.0 kbit)
> Selected audio codec: [a52] afm:liba52 (AC3-liba52)
> ==========================================================================
> MP3 audio selected
> Building audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/16bit...
> Writing AVI header...
> Pos:   0.1s      2f ( 0%)   0fps Trem:   0min   0mb  A-V:0.004 [0:0]
> skip frame!!!
> Pos:   0.1s      4f ( 0%)   0fps Trem:   0min   0mb  A-V:0.012 [0:0]
> skip frame!!!
> Pos:   0.2s      6f ( 0%)   0fps Trem:   0min   0mb  A-V:0.020 [0:0]
> skip frame!!!
> Pos:   0.2s      8f ( 0%)   0fps Trem:   0min   0mb  A-V:0.028 [0:0]
> skip frame!!!
> Pos:   0.2s     10f ( 0%)   0fps Trem:   0min   0mb  A-V:0.034 [0:0]
> skip frame!!!
> Pos:   0.3s     12f ( 0%)   0fps Trem:   0min   0mb  A-V:0.040 [0:0]
> skip frame!!!
> Pos:   0.3s     14f ( 0%)   0fps Trem:   0min   0mb  A-V:0.041 [0:0]
> skip frame!!!
> Pos:   0.4s     16f ( 0%)   0fps Trem:   0min   0mb  A-V:0.044 [0:0]
> skip frame!!!
> Pos:   0.4s     18f ( 0%)   0fps Trem:   0min   0mb  A-V:0.052 [0:0]
> skip frame!!!
> Pos:   0.4s     20f ( 0%)   0fps Trem:   0min   0mb  A-V:0.055 [0:0]
> skip frame!!!
> Pos:   0.5s     22f ( 0%)   0fps Trem:   0min   0mb  A-V:0.060 [0:0]
> skip frame!!!
> Pos:   0.5s     24f ( 0%)   0fps Trem:   0min   0mb  A-V:0.059 [0:0]
> 
> And so on ....
> 
> What's wrong ?
> 
> Bleck
> 
> 
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> 
> 
> 
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> 


A'rpi / Astral & ESP-team

--
Developer of MPlayer, the Movie Player for Linux - http://www.MPlayerHQ.hu