[MPlayer-users] [BUG] -srate is (still) broken

Mick email_mick_groups at bigpond.com
Fri Jul 9 08:16:04 CEST 2004


Could this be why my bttv recordings (using line in) sound so shity?

I'm using:
/bin/nice -n-20 /usr/bin/mencoder tv:// -tv
driver=v4l:width=528:height=576:outfmt=yuy2:input=0:device=/dev/v4l/video0:norm=PAL:chanlist=australia:channel=10:audiorate=44100:forcechan=2:alsa -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=2200 -oac mp3lame -lameopts fast:preset=standard -vf crop=512:560,pp=tn/lb/vb:2,scale=512:384,dsize=1.3333 -sws 0 -endpos 10 -ffourcc divx -o test.avi

And the audio sounds like an 8khz sample.  I thought maybe it has
something to do with my cards output or sblive values poor input..

Mick
On Fri, 2004-07-09 at 04:03, Giacomo Comes wrote:
> Hi everybody,
> I have reported this bug more than one month ago, but there were no reaction.
> So I'm reporting it again.
> 
> With MPlayer1.0pre4 and latest CVS there is a bug
> that shows up using the -srate option.
> For example take a video with 8000 Hz sound and play it with:
> 	mplayer video -srate 44100  
> the audio will be terribly distorted, but with 
> 	mplayer video -af resample=44100
> it works fine. 
> With mplayer is possible to circumvent the bug as showed,
> but the trick does not work with mencoder!!!
> MPlayer1.0pre3 didn't have the problem.
> 
> The bug doesn't concern only 8000 Hz sound played at 44100 Hz, it shows up
> also if you play a 48000 Hz audio at 44100 Hz or viceversa but it's more 
> difficult to ear it.
> If requested I can provide a small video with 8000 Hz audio.
> 
> Cheers
> 
> Giacomo
> 
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