[FFmpeg-devel] [GSoC] Patch which add simple P frame support for ffv1

[Yingming Fan]

Hi, everyone.

This is my GSoC qualification task, add simple P frame for ffv1.

P frame will work when you add -level 4.

eg. ffmpeg -pix_fmt yuv420p -s xxxx -i xx.yuv -vcodec ffv1 -level 4 test.nut

Notice: Only support yuv colorspace and 8 bit currently, i will support
these in later time.

Other option about ffv1 can be find here:
http://trac.ffmpeg.org/wiki/Encode/FFV1

About test.

I haven't send FATE result to server as i'm not that familiar with those
staff. But i will complete this as soon as possible.

Best regards
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