On Wed, Jan 30, 2019 at 07:47:24 +0100, frhun wrote: > 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@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@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@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@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
How does this performance change if you omit all the filters, i.e. just RTSP demuxing/decoding and re-encoding to YouTube? (In other words: Do the filters "cook" your CPU, or is it the encoding?) Not with "-c:v copy, as in your original e-mail. If the encoding is the bottleneck, you should try using your GPU for that. Moritz _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
