[MEncoder-users] Problem encoding some MPEG2-TS to MP4/h.264 streams [ and producing the evdience ]

[Grozdan]

2010/2/16 Owen Williams <williams at dmu.ac.uk>

> Hello,
>  I'm having a problem encoding some MPEG-TS with adverts in them
> (though that maybe a red herring.)
>
> During the encode this suddenly starts being output repeatedly:
>
>  Too many video packets in the buffer: (4096 in 12648301 bytes).
>  Maybe you are playing a non-interleaved stream/file or the codec failed?
>  For AVI files, try to force non-interleaved mode with the -ni option.
>

which demuxer did you use? mplayer's own one or -demuxer lavf ?


>
> For the following video this starts at about 67% as the advert starts:
>
> Original:
>
> http://ocean.blue.dmu.ac.uk/~williams/MP4Test/1004_20100207185500.mpg<http://ocean.blue.dmu.ac.uk/%7Ewilliams/MP4Test/1004_20100207185500.mpg>
>
> MP4:
>
> http://ocean.blue.dmu.ac.uk/~williams/MP4Test/bob2.mp4<http://ocean.blue.dmu.ac.uk/%7Ewilliams/MP4Test/bob2.mp4>
>
> Wrapped in Flowplayer:
>
> http://ocean.blue.dmu.ac.uk/~williams/MP4Test/<http://ocean.blue.dmu.ac.uk/%7Ewilliams/MP4Test/>
>
>
> The MP4 in flowplayer quits audio but the video carries on.  Mplayer
> displays the error above for the MP4 but has no problem with the
> original MPEG2-TS.
>
> For the last few days I've been using dd with skip, bs and count to
> extract a portion of the video to exhibit the bad behaviour but failed.
>
> A 10MB sample:
>
> http://ocean.blue.dmu.ac.uk/~williams/MP4Test/bob2.mpg<http://ocean.blue.dmu.ac.uk/%7Ewilliams/MP4Test/bob2.mpg>
> http://ocean.blue.dmu.ac.uk/~williams/MP4Test/bob2a.mp4<http://ocean.blue.dmu.ac.uk/%7Ewilliams/MP4Test/bob2a.mp4>
>
> This is the basic command line:
>
>  /usr/local/bin/mencoder  ../Copy/copy.mpg -o Compromised.avi -fps 25 -ofps
> 25 -lavdopts threads=8 -ovc x264 -x264encopts
> pass=2:bitrate=800:me=umh:me_range=16:dct_decimate:nointerlaced:no8x8dct:nofast_pskip:trellis=0:partitions=p8x8,i4x4:keyint=250:keyint_min=25:psy_rd=0.8,0.0:frameref=1:bframes=0:b_adapt=0:b_pyramid=none:noweight_b:direct_pred=none:subq=8:mbtree=0:chroma_me:nocabac:aq_mode=1:deblock=-3,-3:vbv_maxrate=1500:vbv_bufsize=1000:level_idc=30:threads=auto:ssim:psnr
> -vf yadif=0,spp=3,hqdn3d,softskip,expand=aspect=4/3,scale=640:480,harddup
> -field-dominance -1 -sws 10 -oac faac -faacopts br=192:mpeg=4:object=2
> -srate 48000 -channels 2
>
> I'm using:
>
> mplayer SVN-r30504-4.1.2
> ffmpeg SVN-r21637
> faac-1.28.tar.gz
> x264 fcf70c2f9853d74ac077a7af016e28eef05e2f5a (4th Feb 2010)
>
> I have had an misunderstanding which I'm going to look up now.  That is
> I was reading 'non-interlaced' where it said 'non-interleaved.'  It made
> me wonder if the adverts where non-interlaced which would be breaking UK
> Freeview 'laws.'  Other streams that are broken also quit at an advert
> but always the first advert.
>
> I think this may be a regression but I don't want to say that I'm sure.
>
> Any help much appreciated,
>
> Owen.
>
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