Problem with drop frames.. Strange..

About encoding, codec settings, muxers and filter usage
Extr
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Problem with drop frames.. Strange..

Postby Extr » 22 Mar 2006 09:36

Hi!
Sorry for my English but i can't understand how slove this problem.

Computer P4 2.8 GHz
Memory 512 Mb
OS - Linux Debian 2.6.15.6
VLC 0.8.5
DVB-card SkyStar1-CI

I take the tv-channel from satellite and stream to my network.

Config file is:

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param='dst=std{access=mmsh,mux=asfh,url=:3001},select="program=17"' /usr/local/vlc3/bin/vlc -vvv -I dummy --color --ttl 12 --ts-es-id-pid \ --programs 17 dvb: --dvb-adapter=0 \ --dvb-frequency=1293000 --dvb-srate=44948000 --dvb-voltage=13 --dvb-fec=7 --dvb-budget-mode \ --sout "#transcode{vcodec=DIV3,vb=2000,width=640,height=480,croptop=8,cropright=6,cropleft=6,cropbottom=8,acodec=mp3,ab=128,channels=2,deinterlace}:duplicate{$param}"
All work great, but sometimes frames drop.

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000231] stream_out_transcode private debug: late picture skipped (1058) [00000248] ts demuxer debug: pid[20] unknown [00000231] stream_out_transcode private debug: late picture skipped (86717) [00000231] stream_out_transcode private debug: late picture skipped (49478) [00000231] stream_out_transcode private debug: late picture skipped (12859) [00000231] stream_out_transcode private debug: late picture skipped (53059) [00000231] stream_out_transcode private debug: late picture skipped (16080) [00000231] stream_out_transcode private debug: late picture skipped (16085) [00000231] stream_out_transcode private debug: late picture skipped (3407)
CPU used on 30%, memory used about 120 Mb (25%). I can't uderstand why picture skipped?

BUT!
If don't use DIV3 codec and stream the mpeg2 from satellite (without coding):

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param='dst=std{access=mmsh,mux=asfh,url=:3001},select="program=17"' /usr/local/vlc3/bin/vlc -vvv -I dummy --color --ttl 12 --ts-es-id-pid \ --programs 17 dvb: --dvb-adapter=0 \ --dvb-frequency=1293000 --dvb-srate=44948000 --dvb-voltage=13 --dvb-fec=7 --dvb-budget-mode \ --sout "#transcode{acodec=mp3,ab=128,channels=2,deinterlace}:duplicate{$param}"
the frames is not drop!!

But this is not the end.
What is also strange!
If i take the other channel (for example 16 program instead of 17) from this satellite (and the same frequensy) and use the DIV3 codec - all work fine! Without drops!

Can anyone help me?

And second qwestion. Why crop is not work? If this not realise in current version VLC ( it seems to me i read it somewhere in this forum), when bug fixed and in which version?

Basil
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Postby Basil » 22 Mar 2006 10:09

I use

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#!/bin/sh /bin/killall vlc sleep 4 /usr/local/bin/vlc -I http --ttl 1 --ipv4 --vlm-conf /tmp/vlm3.conf --daemon -vvv --control logger --logfile /var/log/vlclog cd /tmp/ sleep 4 /usr/bin/wget -q http://localhost:8080/vlm/ rm index.html
and

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new sat03 broadcast enabled setup sat03 input "dvb:" setup sat03 option dvb-frequency=3570000 setup sat03 option dvb-srate=3570000 setup sat03 option ts-es-id-pid setup sat03 option sout-standard-mux=ts setup sat03 option sout-standard-access=udp setup sat03 option sout-standard-sap setup sat03 option programs=1 setup sat03 output #duplicate{dst=std{url=239.90.3.1,name=SatTV-03-Kolyma-plus}, dst="transcode{vcodec=mp4v,scale=0.5,acodec=mpga,ab=64}:std{url=239.92.3.1,name= SatTV-03L-Kolyma-plus}",select="program=1"} control sat03 play
two streams running

Extr
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Postby Extr » 30 Mar 2006 10:52

two streams running
so what?


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