Hi guys,


I needed to create very specific video settings for conversion.

Here is my command:
Code:
ffmpeg -i v.mp4 -y -vcodec libx264 -flags +ilme -level 30 -pix_fmt yuv422p -s 720x480 -r 29.97 -aspect 4:3 -b:v 2500k -minrate 2500k -maxrate 5000k -bufsize 1835k -acodec ac3 -ac 6 -ar 48000 -ab 192k v_SD.mp4
But the output has those stripped lines on the p and b frame. My questions are:
what is the cause of this?
Does the vsync needs to be carried away?
Is vsync enabled by default?
What are the ffmpeg options for encoding i-th frame in the GOP size? (is this correct -qscale 1 -qmin 1 ? )
What is the possible cons if only i-th frame is encoded?
How can I find if my video source is deinterlaced?
Do I need to deinterlace the video in order to loose the horizontal strips? (or carry away the -flags +ilme in the command? )

Cheers,
Thank you for your patience.