[FFmpeg-user] Problem with realtime MPEG-2 video encoding
de.techno at gmail.com
Thu Feb 16 14:55:26 CET 2012
On 02/16/12 17:52, Romeu Palos wrote:
> I'm trying to encode mpeg-2 video in real time, CBR and fulllHD and it
> works just fine for a long time. But I realize with some video animations,
> with lots of colors and moviment, it get too slow and the real time is not
> achieved anymore.
> this is my command line:
> ffmpeg -s 1920x1080 -r 30000/1001 -pix_fmt uyvy422 -i
> /tmp/ffmpeg_input-cSm8Za.yuv -vb 15500000 -maxrate 15500000 -minrate
> 15500000 -bufsize 2583333 -vstats -s 1920x1080 -r 30000/1001 -flags
> +ilme+ildct -top 1 -an -threads 12 -vcodec mpeg2video -flags2 +fast
> -streamid 0:273 -f mpegts -> /tmp/ffmpeg_output-yC91jH.ts1
> The video output need to be interlaced.
> There is any other switch that can make it faster?
> I tryed to use -me_method zero, but without success.
> When I use VBR it goes 4 times the real time, but it isn't an option.
> Thanks in advance.
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
Thanks for the tip! CBR increases frame rates for screencasting.
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