[FFmpeg-user] ATSC TS live transcode on DL360 G4?

[George Georgiev]

 Hello, thanks for the idea to put the output on a file - however there is no difference, same results. The task still lacks processor power, as shown in the first post:
top - 05:38:12 up 19 days, 16:14, 2 users, load average: 5.24, 4.30, 2.37
%Cpu0 : 91.4 us, 1.7 sy, 0.0 ni, 5.0 id, 0.0 wa, 0.0 hi, 2.0 si, 0.0 st
%Cpu1 : 89.5 us, 1.6 sy, 0.0 ni, 7.6 id, 0.0 wa, 0.0 hi, 1.3 si, 0.0 st
%Cpu2 : 90.7 us, 0.7 sy, 0.0 ni, 8.0 id, 0.0 wa, 0.0 hi, 0.7 si, 0.0 st
%Cpu3 : 91.1 us, 1.3 sy, 0.0 ni, 6.6 id, 0.0 wa, 0.0 hi, 1.0 si, 0.0 st

As for the nice value - it is -20, even if it affects nothing as there is nothing else running on that computer.
 7623 root 0 -20 1632m 781m 7812 S 379.0 20.0 18:47.62 ffmpeg 

'preset superfast' has little effect as well. Looks that 2 double-core 64 but Xeon at 3.4Ghz are just not enough for this transcoding? Some ideas what else can be tried?

Thanks, George.


----------------original message-----------------
From: "Carl Eugen Hoyos" cehoyos at ag.or.at 
To: ffmpeg-user at ffmpeg.org 
Date: Wed, 30 Jan 2013 08:20:03 +0000 (UTC)
-------------------------------------------------
 
 
> Subscriptions <subscriptions <at> znet.ca> writes:
> 
>> nice -n -20 
> 
> I wonder if it makes sense to report a performance 
> problem with nice -n20 ...
> 
>> ffmpeg -i 
>> "udp://239.255.254.1:1234?fifo_size=6000000&overrun_nonfatal=1&" 
>> -acodec copy -c:v libx264 -crf 22 -preset fast 
>> -f mpegts udp://239.255.254.240:1234
> 
> Please test with a faster preset and file output first 
> to make sure this is CPU performance problem.
> 
> Carl Eugen
> 
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