melt command line player issue : interlacing not supported by codec

I installed melt (using MLT framework) in one of my Linux machine and is trying to perform a simple video editing operation. Following is the command I issued:

melt avformat-novalidate:clip1.mpeg -consumer avformat:clip1-grey.mpeg -verbose

The output video is not getting created properly and also it is giving an error like:

[mpe开发者_如何学编程g1video @ 0x1b0a5910]interlacing not supported by codec

Do anybody know, why this is happening?

You can use something like this :

melt youravifile.flv -consumer avformat  frame_rate_num=30 -profile vcd_pal >output.avi

May be your video is not encoded properly because i have used it before for multiple codecs and multiple containers I haven't seen this error before.

try using different video codecs like mpeg4 or libx264. to know all the video codecs available

melt -query "video_codecs"

use video codec in your command like this

melt avformat-novalidate:clip1.mpeg -consumer avformat:clip1-grey.mpeg -vcodec=libx264 -verbose

you may need to change the file extension(container) depending on the codec you use like for h264 you would want to use avi or flv etc.