Krisztián KAUTH,
KAUTH : We tried blocksize, qpI/qpP values etc
Santosh : These values are honoured only and only if your presets of corresponding master parameter(like rateControlPreset, rateControlParamsPreset, interCodingPreset etc) are user_defined. Please refer user guide for more details. If these are set to _default, then any values falling under their mastership is set to default and user forced settings are not considered.
If possible please share the stream encoded for few frames.
Thanks,
Santoshkumar S K