[FFmpeg-user] Speed up Transcode

Carl Eugen Hoyos cehoyos at ag.or.at
Fri Dec 6 14:02:08 CET 2013

 <peace <at> aleksandrsolzhenitsyn.net> writes:

> Notebooks <at> Notebook-laptop:~/Videos$ ffmpeg -i Input.MTS 
> -deinterlace -target ntsc-dvd Output.mpeg

Afaict, hardware is the limiting factor (I get 
ten times realtime here).
Consider using -vf yadif instead of -deinterlace 
which I suspect is a deprecated option.

> Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), 
> yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 59.94 tbr, 
> 90k tbn, 59.94 tbc

Are you sure the stream is interlaced and not telecined?
It is a bad idea to use a deinterlacer on a telecined 
input stream.

Carl Eugen

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