RFE: h264 tune options configurable

[bugsyb]

trafficstars

Would it be possible please to pass to h264 additional options/parameters, even if without validation? Key element is to be able to tune settings as below and potentially more: [libx264 @ 0000000002167100] Possible tunes: film animation grain stillimage psnr ssim fastdecode zerolatency

[mpromonet]

Hi,

Yes, sure, fill free to improve what you need.

Best Regards, Michel.