HW cuda not working..

mpv Information

hi
 not working HW anu h264 video :(
os: wind10 AND win11 !!
and not work in all linux TOO.
 but. if im using NOT latest MPV, cuda working...
 cuda work on very old mpv, Like 2016-2017 builds
 in latest not work...
can add fixes for OLD nvidia GPUs ??
 my gpu is nvidia gtx 570 (TOO OLD, know..)
 
in QMPLAY2 player CUDA work..
im think, latest mpv CAN use CUDA HW to play any 1280x720 / 1080 h264 video..
 just need add fixes for OLD GPUS, very old..
u can test, im think, all LEGACY gpus .. like.. 2010-2013 not work in HW - cuda, on LATEST player version (stable

Other Information

win10 , win11 LATESTS

Reproduction Steps

What

Expected Behavior

What

Actual Behavior

What

Log File

what.log

Sample Files

No response

I carefully read all instruction and confirm that I did the following:

• I tested with the latest mpv version to validate that the issue is not already fixed.
• I provided all required information including system and mpv version.
• I produced the log file with the exact same set of files, parameters, and conditions used in "Reproduction Steps", with the addition of --log-file=output.txt.
• I produced the log file while the behaviors described in "Actual Behavior" were actively observed.
• I attached the full, untruncated log file.
• I attached the backtrace in the case of a crash.

Start by inspecting the attached what.log and reproducing the report with the stated GTX 570 on Windows 10/11 and Linux using the latest mpv build. Done requires a reproducible report identifying whether legacy NVIDIA/CUDA hardware fails and what compatibility behavior is expected.