20.06.20 h.264_nvenc Lossless export is Lossy

[Elusien]

See here:

H264 lossless bug?

It is normal that often the output size is greater than the source. 85% is a high value for H.264 or HEVC. I see you are using NVENC hardware encoder, and I do not think this supports the lossless mode of H.264. So, it probably reject some option provided and returned to some default that is lower than 85%. We do not have logic that validates every combination of parameters in Export > Advanced especially in conjunction with every implementation of hardware encoder.

The sentence beginning “We do have logic”, should actually say “We do NOT have logic”.

Although Wikipedia says that Fourth generation, Pascal GP10 does support lossless, presumably it isn’t supported by earlier versions.