[MPlayer-dev-eng] Re: Last call for pre8

[Michael Niedermayer]

Hi

On Sat, Apr 29, 2006 at 11:53:05AM +0200, Matthias Wieser wrote:
> Diego Biurrun wrote:
> > On Thu, Apr 27, 2006 at 11:01:12PM +0200, Roberto Togni wrote:
> > > This is my last attempt at releasing pre8 before Linuxtag.
> > >
> > > Changes from previous report:
> > >
> > > * other stuff (from the old pre8 thread):
> > > - anything else?
> >
> > I found a regression with the updated libfaad:
> >
> > http://www.mplayerhq.hu/MPlayer/samples/mobileVideo_3gp/t7p69_227_196.3g2
> 
> I have a problem related to another common mobile video format:
> Mpeg4+aac in a MP4 container.
> 
> I'm using
> mencoder /big/Medien/Video/test.mpg \
>  -oac faac -faacopts br=96 \
>  -ovc lavc -lavcopts vcodec=mpeg4:mbd=2:vbitrate=300 \
>  -of lavf -lavfopts 
> i_certify_that_my_video_stream_does_not_use_b_frames:format=mp4 \
>  -endpos 10 -o test.mp4
> 
> ffmpeg:
> ffmpeg -y -i /big/Medien/Video/test.mpg  -b 300 -t 10 -ac 1 -ab 96 -acodec 
> aac -vcodec mpeg4 test-ffmpeg.mp4
> 
> The two resulting videos can both be played with mplayer and the player of 
> the mobile phone (Nokia 6280). But the latter one does not play any sound 
> with the mencoder generated file. The ffmpeg file works perfectly with both 
> players.
> 
> mplayer -v shows some differences, especially the ESDS MPEG4 Descriptors are 
> mission in the mencoder generated file:

RTFM aglobal / vglobal options
(aglobal will need faac encoding over lavc, dunno how to get the faac wraper
in mplayer to produce these headers, maybe it was faacopts raw or so)

[...]

-- 
Michael

In the past you could go to a library and read, borrow or copy any book
Today you'd get arrested for mere telling someone where the library is