[MPlayer-users] Re: Audio & video file sizes don't add up to actual file size (mencoder)

[Pit Cuppens]

Here are some more details: I called mencoder with the following
options:

  ~/sw/mplayer-1.0pre4/bin/mencoder dvd://1 -dvd-device VIDEO_TS/ -o 
movie.avi -alang en -vf crop=720:436:0:70,scale=416:-3 -oac lavc -ovc lavc 
-lavcopts acodec=ac3:abitrate=128:vcodec=mpeg4:vbitrate=767:vhq:vqmin=2:
v4mv:trell:autoaspect:vlelim=-4:vcelim=9:lumi_mask=0.05:dark_mask=0.01:
vpass=2 -endpos 6480

(As you can see, this is pass 2; I encoded pass 1 with
precisely the same options, with the only difference
that I use "-oac copy" and "vpass=1" in the first pass.)

The output of pass 2 (just before exiting) is:

  Video stream:  683.068 kbit/s  (85383 bps)  size: 552851566 bytes  
6474.920 secs  161874 frames
  Audio stream:  128.000 kbit/s  (16000 bps)  size: 103606272 bytes  
6475.392 secs

So the sum of the two sizes (after "size:") is 656457838; while
the actual file size is 665284436. That is an 8MB difference.

Is this normal? Is one of the options the problem?

Many thanks,
Pit

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