[FFmpeg-user] ffmpeg ip cam stream with drawtext

[frhun]

so I try lot of ffmpeg switch

ffmpeg -r 25 -rtsp_transport tcp -i 
rtsp://admin:1234@192.168.2.25/Streaming/Channels/1 -c:v libx264 -b:v 2M 
-c:a copy -vf "[in]drawtext=fontfile='C\:\\Windows\\Fonts\\cour.ttf': 
textfile='Z\:\\k\\v\\T_A\\P.txt': x=180: y=30: reload=1: 
fontcolor=black: fontsize=50: box=1: boxborderw=5: boxcolor=red at 0.8 , 
drawtext=fontfile='C\:\\Windows\\Fonts\\cour.ttf': 
textfile='Z\:\\k\\v\\T_A\\F.txt': x=180: y=75: reload=1: 
fontcolor=black: fontsize=50: box=1: boxborderw=5: boxcolor=white at 0.8 , 
drawtext=fontfile='C\:\\Windows\\Fonts\\cour.ttf': 
textfile='Z\:\\k\\v\\T_A\\O.txt': x=30: y=30: reload=1: fontcolor=black: 
fontsize=60: box=1: boxborderw=5: boxcolor=aqua at 0.8 , 
drawtext=fontfile='C\:\\Windows\\Fonts\\cour.ttf': 
textfile='Z\:\\k\\v\\T_A\\M.txt': x=30: y=80: reload=1: fontcolor=black: 
fontsize=47: box=1: boxborderw=5: boxcolor=yellow at 0.8[out]" -preset 
ultrafast -f flv rtmp://a.rtmp.youtube.com/live2/x-x-x-x

I fixed the rate, and the output bitrate , and -preset utltrafast set

cpu usage 50% down to 20% it is better but not enough
because i using 4 cameras, processor usage ~80% , I cooked my notebook...
How to go below cpu usage

Or there are other ways to text write video stream?

Robert


2019. 01. 29. 22:02 keltezéssel, Michael Shaffer írta:
> Ok, I didn't know that. I guess it must be the encoding to h264 that the
> GPU is helping with.
> 
> On Mon, Jan 28, 2019 at 11:23 PM Carl Eugen Hoyos <ceffmpeg at gmail.com>
> wrote:
> 
>> 2019-01-29 0:06 GMT+01:00, Michael Shaffer <mikeshaffer at gmail.com>:
>>> Hi, we are also streaming a Hikvision cctv camera to youtube. We're not
>>> putting text on the image but are using the "-vf curves" command to
>>> eliminate fog. The CPU was unable to do the curves filter at 30fps above
>>> 1080p. We put my GeForce 1060 3GB in the computer, and it doesn't use
>> much
>>> CPU at all now. Here is the command we're using that uses the Nvidia GPU.
>>
>> This may not be related but allow me to add that the curves filter can
>> only run on CPU, and does not use GPU at all.
>>
>> Carl Eugen
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