[FFmpeg-user] how many complex filters i can use at the same time

Antonio Hanna antoniohanna at gmail.com
Sat Dec 23 17:50:03 EET 2017

sorry for any inconvenience but i need a little help here..
i am writing this command with complex filters

ffmpeg.exe -re -i wonder.mp4 -i logo72.png -filter_complex
"[0:v]drawtext=fontcolor=white:fontsize=24:fontfile='C\:\\Windows\\Fonts\\arial.ttf':textfile='d\:\\text.txt':reload=1:y=h-line_h:x=w-(mod(n*3\,w+tw)-tw/40),drawbox=y=ih-30:color=black at 0.4:width=iw:height=30:t=max[text];[text][1:v]overlay=15:15,subtitles=wondering.ass:force_style='PrimaryColour=&H155000FF,OutlineColour=&H55000000,BorderStyle=5,FontSize=22'[filtered]"
-map "[filtered]" -map 0:a -codec:v libx264 -codec:a copy -f mpegts udp://

am i writing the filters right ??? i mean .. i feel like this is consuming
lots of cpu power .. i dont know if im doing anything wrong

On Sat, Dec 23, 2017 at 6:45 AM, Gyan Doshi <gyandoshi at gmail.com> wrote:

> On 12/22/2017 8:38 PM, Antonio Hanna wrote:
>> i'm using ffmpeg in a sort of a playout .. and i'm using 3 filters
>> together
>> ..
>> 1- subtitle
>> 2- logo
>> 3- banner sliding at the bottom of the screen ..
>> my question is .. how  many complex filters i can use at the same time  ??
>> thank you in advance !
> As many as you want. But pads cannot be exchanged between two
> filter_complex graphs i.e. output of one FC graph cannot be ingested by
> another FC graph. and all ultimate output pads should be mapped or sent to
> a sink.
> Regards,
> Gyan
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