[MPlayer-users] difference between -lameopts vbr=0 and cbr;
struan at NewsNow.co.uk
Wed Feb 12 16:03:47 CET 2003
>>[Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
>>There's something I don't understand from the mencoder man page.
>> vbr=<0-4> variable bitrate method
>> 0: cbr
>> 1: mt
>> 2: rh(default)
>> 3: abr
>> 4: mtrh
>> abr average bitrate
>> cbr constant bitrate.
>> Forces also CBR mode encod.
>> ing on subsequent ABR pre.
>> sets modes
>>Does vbr=0 ("variable bitrate method 0") mean constant bitrate?
>>Does vbr=3 mean the same as abr?
>cbr is just an 'alias' for vbr=0 (easier to remember)
>and abr to vbr=3
Thanks for clearing this up.
Isn't it confusing, in particular putting constant bitrate in the list
of vbr settings?
Perhaps it would improve matters (for beginners at least) to change the
man page as follows:
vbr=<0-4> variable bitrate method
< 0: cbr
> 0: cbr (constant, not variable, bitrate)
< abr average bitrate
> abr average bitrate (same as vbr=3)
< cbr constant bitrate
> cbr constant bitrate (same as vbr=0).
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