Hi to,
in this moment I try to use in the SpeedRazor for cats HD 3.11.095.2014-rev.15.32547854IIbeta8547859999 the x264VFW plugin to export in mpeg4
in the "extra command line" I have to add options so that encoding of x264VFW is similar to the ffmpeg commandline:
please note that I need to export in a mpeg4 in avi, if possibile, this time. Not a .mp4 fileCode:ffmpeg.exe -y -i input.avi -c:v libx264 -profile:v high422 -level:v 3 -g 33 -bf 1 -crf 18 -pix_fmt yuv422p -flags +ildct+ilme -top 1 -x264opts tff=1 -aspect 16:9 out.avi
An I wonder: if the fields "preset tuning profile level" are not congruent with the "extra comman line" option what happens?
So I how I modify the extracommandline to match the ffmpeg commanline? thanks
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Last edited by marcorocchini; 16th Jul 2014 at 07:32.
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extra commandline options override the GUI
--keyint 33 --bframes 1 --tff --crf 18
(you can use CRF 18 in the drop down menu as well, instead of CQP , select CRF quality based)
SAR x:y is for Sample Aspect Ratio (you can think of it as the pixel aspect ratio , or the w:h of the pixels). -aspect 16:9 in ffmpeg is Display Aspect Ratio (DAR)
Display Aspect Ratio = Frame Aspect Ratio * Sample Aspect Ratio
e.g
for 1920x1080
16/9 = 1920/1080 * 1/1
So you would enter 1:1 (ie square pixels) -
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ffmpeg uses non-ITU rules. Broadcast, NLE's usually use ITU rules, but these days most places don't care (unless you're submitting to BBC, they are more strict). It's just that you should be aware of slightly different AR interpretations
Last edited by poisondeathray; 16th Jul 2014 at 09:04.