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intel / media-delivery

This collection of samples demonstrates best practices to achieve optimal video quality and performance on Intel GPUs for content delivery networks. Check out our demo, recommended command lines and quality and performance measuring tools.
MIT License
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doc/ffmpeg: add encoders dynamic options #80

Closed dvrogozh closed 2 years ago

dvrogozh commented 2 years ago

Signed-off-by: Dmitry Rogozhkin dmitry.v.rogozhkin@intel.com

wenbinc-Bin commented 2 years ago

Hi @dvrogozh . I think we should mention that, to set qp correctly we need to set global_quality = target_qp * FF_QP2LAMBDA. According to doc, global_quality is an integer in lambda units, which is different from when we set "-q" when using command.

dvrogozh commented 2 years ago

I think we should mention that, to set qp correctly we need to set global_quality = target_qp * FF_QP2LAMBDA. According to doc, global_quality is an integer in lambda units, which is different from when we set "-q" when using command.

That's a good point. and there are other fields which might require comments on how to properly configure. We will do that in a separate PR though.