Nvidia codecs no longer work (Nvidia HEVC/Nvidia H264)

[Rainman74]

Since the versions from November 2024 onwards, the Nvidia codecs no longer work correctly.

If I set Nvidia HEVC, for example, files well over 10 GB in size are generated at up to 60000 kbit/s, despite the limitation via 'Max Bitrate'.

Other settings don't seem to have any effect either, the encoded files are always between 50-60 GB in size.

If I then downgrade to Avidemux 2.8.2 r24090x (regardless of whether the VC++ or Qt version), the bitrate is used correctly and the output files are in the defined ranges and are 2-4 GB in size.

My settings always remain unchanged:

Code Select Expand

adm. videoCodec('ffNvEncHEVC', 'preset=5', 'profile=0', 'rc_mode=5', 'quality=28', 'bitrate=4000', 'max_bitrate=12000', 'gopsize=100', "refs=3", "bframes=3", "b_ref_mode=2", "lookahead=20", "aq_strength=1", "spatial_aq=False", 'temporal_aq=True'
, 'weighted_pred=False')

[Rainman74]

Supplement: In the latest version Avidemux_2.8.2 VC++ 64bits 250109 the encoding process no longer starts at all and stops immediately with the error message that the settings are not compatible with the current encoder (Nvidia HEVC).

I still haven't changed anything in the settings and even after resetting to the default settings the same error message appears.