libvlc after 12 instances hardware accelerator failed to decode picture error

[furkanka50]

Hi all,
I am using libvlc 3.0.11 sdk. I have multiple instances of vlc player in my program developed in Qt platform. I am using libvlc_media_new_callbacks API to read data from custom buffer. There isn't any problem until 12 instance of players but when I increase the number of instances, libVLC gives that error "hardware accelerator failed to decode picture" with red text color.
If I open multiple instances of my own program, I can create 12 instances for each program and works fine. According from this, I think this is not hardware-capacity related problem. I have tried different hardware accelereation options but I could'nt make it work. I need help
Regards...

[Rémi Denis-Courmont]

That error message is not from LibVLC. I think FFmpeg shows that when the underlying hardware driver fails to decode.

[furkanka50]

Thanks for your reply. I'll consider that. Do you have any suggestion for me? I am stuck right now

[slymnkbdyi]

i have a such problem , did you solve the problem ? can you help me ?

[furkanka50]

According to @Rémi Denis-Courmont 's reply, I've just tested ffmpeg mosaic example with 16 seperate videos, it works properly with hardware acceleration. It is not working properly with libvlc. I don't know how to solve this problem.