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Field-encoding mode of interlaced video - FieldOutput flag

Zenon_S_
Beginner
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Hi,

I'm trying to Encode interlaced video and get a separate chunk of a bitstream for each field. I understand the regular schema look like this:
1) Prepare input surface (frame) containing both fields
2) Run EncodeFrameAsync
3) Sync
4) Read the output bitstream containing both encoded fields

I've found the mfxExtCodingOption.FieldOutput flag which I believe can help me. Can you explain how to use it to encode each field separately?

 

Regards,
Wojciech

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