[MEncoder-users] from h264+AAC (mp4) to Xvid+AAC (avi)

[Stefano Campitelli]

Il Friday 19 December 2008 00:55:37 Charles philip Chan ha scritto:
> "Charles philip Chan" <cpchan at sympatico.ca> writes:
> > Forgot to add, try adding "-harddup" also.
>
> Oops, that should be "-vf harddup".
>
> Charles

I have 

MEncoder dev-SVN-r28162-4.2.4 (C) 2000-2008 MPlayer Team

I use  "-mc" option because without this mencoder begins to skip frame during 
encoding :


Pos:   1.7s     42f ( 0%) 16.48fps Trem:   7min  71mb  A-V:0.084 [1726:137]
Scarto fotogramma!
Pos:   2.4s     62f ( 0%) 17.88fps Trem:   9min  74mb  A-V:0.083 [1410:134]
Scarto fotogramma!
Pos:   3.2s     83f ( 0%) 18.51fps Trem:  11min  83mb  A-V:0.085 [1224:131]
Scarto fotogramma!
Pos:   4.0s    103f ( 0%) 18.96fps Trem:  13min  87mb  A-V:0.084 [1114:131]
Scarto fotogramma!
Pos:   4.7s    123f ( 0%) 19.25fps Trem:  14min  92mb  A-V:0.083 [1040:129]
Scarto fotogramma!
Pos:   5.5s    144f ( 0%) 19.48fps Trem:  15min  95mb  A-V:0.085 [984:128]]
Scarto fotogramma!
Pos:   6.3s    164f ( 0%) 19.86fps Trem:  16min  98mb  A-V:0.084 [924:125]
Scarto fotogramma!
Pos:   7.0s    184f ( 0%) 20.33fps Trem:  17min  99mb  A-V:0.083 [871:121]
Scarto fotogramma!
Pos:   7.7s    205f ( 0%) 20.96fps Trem:  18min 105mb  A-V:0.085 [843:120]
Scarto fotogramma!
Pos:   8.3s    225f ( 0%) 21.40fps Trem:  18min 107mb  A-V:0.084 [893:122]
Scarto fotogramma!
Pos:   9.1s    245f ( 1%) 21.45fps Trem:  17min 112mb  A-V:0.083 [955:123]
Scarto fotogramma!
Pos:   9.8s    266f ( 1%) 21.52fps Trem:  18min 115mb  A-V:0.085 [956:123]
Scarto fotogramma!
Pos:  10.6s    286f ( 1%) 21.57fps Trem:  18min 118mb  A-V:0.084 [944:124]
Scarto fotogramma!
Pos:  11.4s    306f ( 1%) 21.48fps Trem:  19min 122mb  A-V:0.083 [945:126]
Scarto fotogramma!
Pos:  12.2s    327f ( 1%) 21.40fps Trem:  19min 122mb  A-V:0.085 [940:126]
Scarto fotogramma!
Pos:  13.0s    347f ( 1%) 21.31fps Trem:  20min 124mb  A-V:0.084 [935:126]

Scarto fotogramma! -----> skip frame

The output file is too fast for the audio.  

I've noticed the sync A/V (with mencoder -oac copy -ovc lavc -ofps 
24000/1001 -MC 0 input.mp4 -o prova.avi -noskip) comes and goes. e.g (at 
begining are bad, after 40 second is ok until the theme song when the sync 
A/V is lost forever) . I report also mp4info output :

mp4info version 1.6
input.mp4:
Track   Type    Info
1       video   H264 High at 4.1, 1384.875 secs, 1336 kbps, 1280x720 @ 28.198935 
fps
2       audio   MPEG-4 AAC LC, 1385.130 secs, 126 kbps, 48000 Hz