[FFmpeg-user] high cpu uses

DopeLabs dopelabs at dubstep.fm
Thu Aug 9 16:08:22 EEST 2018


On Aug 9, 2018, at 4:16 58AM, Remo Rayamajhi <kshatriya.remo at gmail.com> wrote:
> 
> Hello ,
> 
> I m using 8 core cpu and  using ffmpeg to transcode udp input to rtmp out
> to my Wowza server ...

except what i see in the command you provided is rtp input to udp out...

also last time i checked wowza should be able to ingest both udp and rtp streams and transcode them

> but only *2 ffmpeg script* is easily run . Is there
> any idea so i can transcode* 5-6 stream *for that 8 core server . Os
> install is centos .
> 
> *ffmpeg -i 'rtp://@239.1.2.10:8002 <http://239.1.2.10:8002>' -r "25"
> -keyint_min 25 -refs 3 -level 3.1 -coder 1 -trellis 1 -b:v 800k -vf
> "yadif,hqdn3d=1.5:1.5:6:6,scale=720:576" -aspect 16:9 -c:a aac -ar 44100
> -ac 2 -b:a 128k -c:v libx264 -g 50 -f mpegts udp://@192.168.2.200:1243
> <http://192.168.2.200:1243> </dev/null >/dev/null 2>/var/log/ffmpeg9.log &*

have you tried (usually at the expense of higher bitrate): -preset ultrafast




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