[FFmpeg-user] -qcomp 0.8 with no effect

[Hugo Wau]

Hello Gabri Nurtinaz Shally,
Hello Carl,

On 23.09.2012 03:51, Gabri Nurtinaz Shally wrote:
> On Sep 23, 2012 2:20 AM, "Hugo Wau"<hugowau at gmx.net>  wrote:
>    
>> I will not change the screen-size, nor will I reduce audio quality. Just
>>      
> a bit more compression, a bit less video quality - if necessary - to make
> the resulting video fit the media. (4.9GB -->>  4.5GB)
>    
>>      
> then you should remove -sameq and add -b:v to set the bitrate.
>
> from my experience with mencoder, -qcomp is used to balance how bitrate
> will be used between high motion and still image, and extremely usefull
> with two pass encoding. -qcomp doesn't have effect on resulting size, but
> resulting quality.
> _______________________________________
>    
Well, nevertheless it works for me now, I just reduced the size of the 
video, which with -sameq (CARL, WHAT DOES THIS REALLY MEAN - IF IT IS 
NOT SAME QUALITY?) and without -qcomp was 4.9 GB  --  reduced to 4.0 GB, 
when "-fs 4500M" just had truncated the end of the video, which was not 
desirable.

with kind regards
Hugo