Hi All,
I want to estimate the motion between two fields of an interlaced video. Currently I run a loop of av_read_frame() and avcodec_decode_video2() to read the video. But I guess that when avcodec_decode_video2() finishes reading a frame, it must have been de-interlaced the two fields of a frame to the complete frame.

I have no idea how I can read field by field of the video. Please give me some pointers to start with.

thanks in advance.
-Sampath
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