illnyang / nvlax Goto Github PK

• Nvidia driver version: 460.73.01
• GPU Model: RTX 2080 Ti
• Docker image: nvidia/cuda:11.1-cudnn8-devel-ubuntu18.04

# ./nvlax_encode -i /usr/lib/x86_64-linux-gnu/libnvidia-encode.so.460.73.01 -o /usr/lib/x86_64-linux-gnu/libnvidia-encode.so.460.73.01
[+] libnvidia-encode.so
[+] patched successfully

and run

ffmpeg -y -vsync 0 -hwaccel cuda -hwaccel_output_format cuda -i /tmp/BigBuckBunny.mp4 \
-vf scale_npp=480:320 -c:a copy -c:v h264_nvenc -b:v 5M /tmp/output1.mp4 \
-vf scale_npp=240:120 -c:a copy -c:v h264_nvenc -b:v 8M /tmp/output2.mp4 \
-vf scale_npp=960:540 -c:a copy -c:v h264_nvenc -b:v 4M /tmp/output3.mp4 \
-vf scale_npp=960:540 -c:a copy -c:v h264_nvenc -b:v 4M /tmp/output4.mp4  

It shows

[h264_nvenc @ 0x55ba06f470c0] OpenEncodeSessionEx failed: out of memory (10): (no details)
Error initializing output stream 3:0 -- Error while opening encoder for output stream #3:0 - maybe incorrect parameters such as bit_rate, rate, width or height

But if I use keylase/nvidia-patch, ffmpeg can transcode multiple streams.

I also tested on

• Nvidia driver version: 460.106.00
• GPU Model: RTX 3090
• Docker image: nvidia/cuda:11.1-cudnn8-devel-ubuntu18.04
  But I still cannot transcode.

Got nvlax-git from AUR, which includes the rollback to an older Zydis version, yet i'm clueless for this one

[bob@bob-old ~]$ nvlax_fbc -i /usr/lib/libnvidia-fbc.so.470.94 -o /usr/lib/libnvidia-fbc.so.470.94
[+] libnvidia-fbc.so
Assertion 'instr.mnemonic == ZYDIS_MNEMONIC_JNB' failed (ERROR)
  in file lax_fbc.cc, line 90
  function: int main(int, char**)
terminate called after throwing an instance of 'ppk::assert::AssertionException'
  what():  
Аварийный останов (стек памяти сброшен на диск)

This occurs both when compiling from source with Zydis patch in #14 and installing any nvlax AUR package with any utility (pamac, yay, paru).

[ 95%] Building CXX object CMakeFiles/nvlax_encode.dir/src/lax_encode.cc.o
/var/tmp/pamac-build-constbur/nvlax-git/src/nvlax/src/lax_fbc.cc: In function ‘int main(int, char**)’:
/var/tmp/pamac-build-constbur/nvlax-git/src/nvlax/src/lax_fbc.cc:40:27: error: request for member ‘virtual_address’ in ‘s_rodata’, which is of pointer type ‘LIEF::ELF::Section*’ (maybe you meant to use ‘->’ ?)
   40 |         offset = s_rodata.virtual_address() + s_rodata.search("This hardware does not support NvFBC");
      |                           ^~~~~~~~~~~~~~~
/var/tmp/pamac-build-constbur/nvlax-git/src/nvlax/src/lax_fbc.cc:40:56: error: request for member ‘search’ in ‘s_rodata’, which is of pointer type ‘LIEF::ELF::Section*’ (maybe you meant to use ‘->’ ?)
   40 |         offset = s_rodata.virtual_address() + s_rodata.search("This hardware does not support NvFBC");
      |                                                        ^~~~~~
/var/tmp/pamac-build-constbur/nvlax-git/src/nvlax/src/lax_fbc.cc:52:38: error: request for member ‘content’ in ‘s_text’, which is of pointer type ‘LIEF::ELF::Section*’ (maybe you meant to use ‘->’ ?)
   52 |         auto v_text_content = s_text.content();
      |                                      ^~~~~~~
/var/tmp/pamac-build-constbur/nvlax-git/src/nvlax/src/lax_fbc.cc:61:38: error: request for member ‘virtual_address’ in ‘s_text’, which is of pointer type ‘LIEF::ELF::Section*’ (maybe you meant to use ‘->’ ?)
   61 |                 size_t temp = s_text.virtual_address() +
      |                                      ^~~~~~~~~~~~~~~
/var/tmp/pamac-build-constbur/nvlax-git/src/nvlax/src/lax_fbc.cc:67:37: error: request for member ‘virtual_address’ in ‘s_text’, which is of pointer type ‘LIEF::ELF::Section*’ (maybe you meant to use ‘->’ ?)
   67 |                     offset = s_text.virtual_address() + data - v_text_content.data();
      |                                     ^~~~~~~~~~~~~~~
/var/tmp/pamac-build-constbur/nvlax-git/src/nvlax/src/lax_encode.cc: In function ‘void patch_linux(LIEF::ELF::Binary*)’:
/var/tmp/pamac-build-constbur/nvlax-git/src/nvlax/src/lax_encode.cc:45:78: error: request for member ‘value’ in ‘f_nvenc_ci’, which is of pointer type ‘LIEF::Symbol*’ (maybe you meant to use ‘->’ ?)
   45 |         auto v_func_bytes = bin->get_content_from_virtual_address(f_nvenc_ci.value(), 0x260);
      |                                                                              ^~~~~
/var/tmp/pamac-build-constbur/nvlax-git/src/nvlax/src/lax_encode.cc:53:37: error: request for member ‘value’ in ‘f_nvenc_ci’, which is of pointer type ‘LIEF::Symbol*’ (maybe you meant to use ‘->’ ?)
   53 |                 offset = f_nvenc_ci.value() +
      |                                     ^~~~~
make[2]: *** [CMakeFiles/nvlax_fbc.dir/build.make:90: CMakeFiles/nvlax_fbc.dir/src/lax_fbc.cc.o] Error 1
make[2]: Leaving directory '/var/tmp/pamac-build-constbur/nvlax-git/src/nvlax/build'
make[1]: *** [CMakeFiles/Makefile2:219: CMakeFiles/nvlax_fbc.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
make[2]: *** [CMakeFiles/nvlax_encode.dir/build.make:90: CMakeFiles/nvlax_encode.dir/src/lax_encode.cc.o] Error 1
make[2]: Leaving directory '/var/tmp/pamac-build-constbur/nvlax-git/src/nvlax/build'
make[1]: *** [CMakeFiles/Makefile2:190: CMakeFiles/nvlax_encode.dir/all] Error 2
make[1]: Leaving directory '/var/tmp/pamac-build-constbur/nvlax-git/src/nvlax/build'
make: *** [Makefile:136: all] Error 2
make: Leaving directory '/var/tmp/pamac-build-constbur/nvlax-git/src/nvlax/build'
==> ERROR: A failure occurred in build().
    Aborting...

Looks like I spoke too soon, if I run more than 3 encodes via FFmpeg I get the [h264_nvenc @ 0000022742a41300] OpenEncodeSessionEx failed: out of memory (10): (no details) error.

Re-installed the driver restarted and patched again, still not working. This is the output when running the patch:

root@ASexyCapturer:~/nvlax/build# ./nvlax_encode -i /mnt/c/Windows/System32/nvEncodeAPI64.dll -o /mnt/c/Windows/System32/nvEncodeAPI64.dll
Unable to find the section associated with CERTIFICATE_TABLE
[+] nvEncodeAPI64.dll
[+] patched successfully
root@ASexyCapturer:~/nvlax/build# ./nvlax_encode -i /mnt/c/Windows/SysWOW64/nvEncodeAPI.dll -o /mnt/c/Windows/SysWOW64/nvEncodeAPI.dll
Unable to find the section associated with CERTIFICATE_TABLE
[+] nvEncodeAPI.dll
[+] patched successfully

Maybe something to do with patching in place?

PS: driver version is 496.49.

Originally posted by @ninbura in #5 (comment)

Thought I'd open a new issue as the issue explained in this message was not related to the original issue.

Maybe I'm using this wrong, but the nvidia patch I saw your post in creates an SO file that can be used as an OBS plugin for shadowplay recording. does this utility do that? I dont see it anywhere when I make it.

is this patch works with latest Nvidia driver version 511.65?

please let me know guys.

thank you

Built according to unstructions, ran the commands:
cp /usr/lib/libnvidia-fbc.so.495.44 .
./nvlax_fbc -i ./libnvidia-fbc.so.495.44 -o ./libnvidia-fbc.so.495.44

Got:

[+] libnvidia-fbc.so
Assertion 'found' failed (ERROR)
  in file lax_fbc.cc, line 77
  function: int main(int, char**)
terminate called after throwing an instance of 'ppk::assert::AssertionException'
  what():  
[1]    24138 IOT instruction (core dumped)  ./nvlax_fbc -i /usr/lib/libnvidia-fbc.so.495.44 -o

Im on Linux mint 20.3

heres the error

/home/gavin/nvlax/src/lax_encode.cc: In function ‘void patch_linux(LIEF::ELF::Binary*)’:
/home/gavin/nvlax/src/lax_encode.cc:45:78: error: request for member ‘value’ in ‘f_nvenc_ci’, which is of pointer type ‘LIEF::Symbol*’ (maybe you meant to use ‘->’ ?)
45 | _func_bytes = bin->get_content_from_virtual_address(f_nvenc_ci.value(), 0x260);
| ^~~~~

In file included from /home/gavin/nvlax/build/_deps/zydis-src/include/Zydis/Status.h:35,
from /home/gavin/nvlax/build/_deps/zydis-src/include/Zydis/Decoder.h:38,
from /home/gavin/nvlax/build/deps/zydis-src/include/Zydis/Zydis.h:39,
from /home/gavin/nvlax/src/lax_encode.cc:17:
/home/gavin/nvlax/src/lax_encode.cc:51:29: error: ‘ZydisDecoderDecodeBuffer’ was not declared in this scope; did you mean ‘ZydisDecoderDecodeFull’?
51 | while (ZYAN_SUCCESS(ZydisDecoderDecodeBuffer(&decoder, data, length, &instr))) {
| ^~~~~~~~~~~~~~~~~~~~~~~~
/home/gavin/nvlax/build/deps/zydis-src/dependencies/zycore/include/Zycore/Status.h:82:9: note: in definition of macro ‘ZYAN_SUCCESS’
82 | (!((status) & 0x80000000u))
| ^~~~~~
/home/gavin/nvlax/src/lax_encode.cc:53:37: error: request for member ‘value’ in ‘f_nvenc_ci’, which is of pointer type ‘LIEF::Symbol*’ (maybe you meant to use ‘->’ ?)
53 | offset = f_nvenc_ci.value() +
| ^~~~~
/home/gavin/nvlax/src/lax_encode.cc:55:32: error: ‘ZydisDecodedInstruction’ {aka ‘struct ZydisDecodedInstruction’} has no member named ‘operands’
55 | instr.operands[1].mem.disp.value;
| ^~~~~~~~
/home/gavin/nvlax/src/lax_encode.cc:59:63: error: ‘ZydisDecodedInstruction’ {aka ‘struct ZydisDecodedInstruction’} has no member named ‘operands’
59 | if (instr.mnemonic == ZYDIS_MNEMONIC_MOV && instr.operands[0].mem.disp.value / 8 == 30) {
| ^~~~~~~~

In file included from /home/gavin/nvlax/build/_deps/zydis-src/include/Zydis/Status.h:35,
from /home/gavin/nvlax/build/deps/zydis-src/include/Zydis/Decoder.h:38,
from /home/gavin/nvlax/build/deps/zydis-src/include/Zydis/Zydis.h:39,
from /home/gavin/nvlax/src/lax_encode.cc:17:
/home/gavin/nvlax/src/lax_encode.cc:82:29: error: ‘ZydisDecoderDecodeBuffer’ was not declared in this scope; did you mean ‘ZydisDecoderDecodeFull’?
82 | while (ZYAN_SUCCESS(ZydisDecoderDecodeBuffer(&decoder, data, length, &instr))) {
| ^~~~~~~~~~~~~~~~~~~~~~~~
/home/gavin/nvlax/src/lax_encode.cc:82:16: note: in expansion of macro ‘ZYAN_SUCCESS’
82 | while (ZYAN_SUCCESS(ZydisDecoderDecodeBuffer(&decoder, data, length, &instr))) {
| ^~~~~~~~~~~~
/home/gavin/nvlax/src/lax_encode.cc:84:23: error: ‘ZydisDecodedInstruction’ {aka ‘struct ZydisDecodedInstruction’} has no member named ‘operands’
84 | instr.operands[0].reg.value == ZYDIS_REGISTER_EAX &&
| ^~~~~~~~
/home/gavin/nvlax/src/lax_encode.cc:85:23: error: ‘ZydisDecodedInstruction’ {aka ‘struct ZydisDecodedInstruction’} has no member named ‘operands’
85 | instr.operands[1].reg.value == ZYDIS_REGISTER_EAX &&
| ^~~~~~~~
In file included from /home/gavin/nvlax/src/lax_encode.cc:19:
/home/gavin/nvlax/src/lax_encode.cc: In lambda function:
/home/gavin/nvlax/src/lax_encode.cc:145:39: error: ‘ZydisDecoderDecodeBuffer’ was not declared in this scope; did you mean ‘ZydisDecoderDecodeFull’?
145 | PPK_ASSERT_ERROR(ZYAN_SUCCESS(ZydisDecoderDecodeBuffer(&decoder,
| ^~~~~~~~~~~~~~~~~~~~~~~~
/home/gavin/nvlax/build/_deps/ppk_assert-src/src/ppk_assert.h:127:56: note: in definition of macro ‘PPK_ASSERT_LIKELY’
127 | #define PPK_ASSERT_LIKELY(arg) _builtin_expect(!!(arg), !0)
| ^~~
/home/gavin/nvlax/build/deps/ppk_assert-src/src/ppk_assert.h:605:50: note: in expansion of macro ‘PPK_ASSERT_3’
605 | #define PPK_ASSERT_2(level, expression, ...) PPK_ASSERT_3(level, expression, VA_ARGS)
| ^~~~~~~~~~~~
/home/gavin/nvlax/build/deps/ppk_assert-src/src/ppk_assert.h:169:44: note: in expansion of macro ‘PPK_ASSERT_2’
169 | #define PPK_ASSERT_1(level, expression) PPK_ASSERT_2(level, expression, PPK_ASSERT_NULLPTR)
| ^~~~~~~~~~~~
/home/gavin/nvlax/build/deps/ppk_assert-src/src/ppk_assert.h:87:39: note: in expansion of macro ‘PPK_ASSERT_1’
87 | #define PPK_ASSERT_JOIN(lhs, rhs) lhs##rhs
| ^~~
/home/gavin/nvlax/build/deps/ppk_assert-src/src/ppk_assert.h:73:46: note: in expansion of macro ‘PPK_ASSERT’
73 | #define PPK_ASSERT_ERROR(...) PPK_ASSERT(ppk::assert::implementation::AssertLevel::Error, VA_ARGS)
| ^~~~~~~~~~~
/home/gavin/nvlax/src/lax_encode.cc:145:9: note: in expansion of macro ‘PPK_ASSERT_ERROR’
145 | PPK_ASSERT_ERROR(ZYAN_SUCCESS(ZydisDecoderDecodeBuffer(&decoder,
| ^~~~~~~~~~~~~~~~
/home/gavin/nvlax/src/lax_encode.cc:145:26: note: in expansion of macro ‘ZYAN_SUCCESS’
145 | PPK_ASSERT_ERROR(ZYAN_SUCCESS(ZydisDecoderDecodeBuffer(&decoder,
| ^~~~~~~~~~~~
/home/gavin/nvlax/src/lax_encode.cc:154:71: error: ‘ZydisDecodedInstruction’ {aka ‘struct ZydisDecodedInstruction’} has no member named ‘operands’
154 | &instr.operands[0],
| ^~~~~~~~

/home/gavin/nvlax/build/_deps/ppk_assert-src/src/ppk_assert.h:127:56: note: in definition of macro ‘PPK_ASSERT_LIKELY’
127 | #define PPK_ASSERT_LIKELY(arg) __builtin_expect(!!(arg), !0)
| ^~~
/home/gavin/nvlax/build/deps/ppk_assert-src/src/ppk_assert.h:605:50: note: in expansion of macro ‘PPK_ASSERT_3’
605 | #define PPK_ASSERT_2(level, expression, ...) PPK_ASSERT_3(level, expression, VA_ARGS)
| ^~~~~~~~~~~~
/home/gavin/nvlax/build/deps/ppk_assert-src/src/ppk_assert.h:169:44: note: in expansion of macro ‘PPK_ASSERT_2’
169 | #define PPK_ASSERT_1(level, expression) PPK_ASSERT_2(level, expression, PPK_ASSERT_NULLPTR)
| ^~~~~~~~~~~~
/home/gavin/nvlax/build/deps/ppk_assert-src/src/ppk_assert.h:87:39: note: in expansion of macro ‘PPK_ASSERT_1’
87 | #define PPK_ASSERT_JOIN(lhs, rhs) lhs##rhs
| ^~~
/home/gavin/nvlax/build/deps/ppk_assert-src/src/ppk_assert.h:73:46: note: in expansion of macro ‘PPK_ASSERT’
73 | #define PPK_ASSERT_ERROR(...) PPK_ASSERT(ppk::assert::implementation::AssertLevel::Error, VA_ARGS)
| ^~~~~~~~~~~
/home/gavin/nvlax/src/lax_encode.cc:153:9: note: in expansion of macro ‘PPK_ASSERT_ERROR’
153 | PPK_ASSERT_ERROR(ZYAN_SUCCESS(ZydisCalcAbsoluteAddress(&instr,
| ^~~~~~~~~~~~~~~~
/home/gavin/nvlax/src/lax_encode.cc:153:26: note: in expansion of macro ‘ZYAN_SUCCESS’
153 | PPK_ASSERT_ERROR(ZYAN_SUCCESS(ZydisCalcAbsoluteAddress(&instr,
| ^~~~~~~~~~~~
In file included from /home/gavin/nvlax/build/_deps/zydis-src/include/Zydis/Status.h:35,
from /home/gavin/nvlax/build/deps/zydis-src/include/Zydis/Decoder.h:38,
from /home/gavin/nvlax/build/deps/zydis-src/include/Zydis/Zydis.h:39,
from /home/gavin/nvlax/src/lax_encode.cc:17:
/home/gavin/nvlax/src/lax_encode.cc: In function ‘void patch_windows(LIEF::PE::Binary*)’:
/home/gavin/nvlax/src/lax_encode.cc:183:33: error: ‘ZydisDecoderDecodeBuffer’ was not declared in this scope; did you mean ‘ZydisDecoderDecodeFull’?
183 | while (ZYAN_SUCCESS(ZydisDecoderDecodeBuffer(&decoder, data, length, &instr))) {
| ^~~~~~~~~~~~~~~~~~~~~~~~
/home/gavin/nvlax/build/deps/zydis-src/dependencies/zycore/include/Zycore/Status.h:82:9: note: in definition of macro ‘ZYAN_SUCCESS’
82 | (!((status) & 0x80000000u))
| ^~~~~~
/home/gavin/nvlax/src/lax_encode.cc:185:27: error: ‘ZydisDecodedInstruction’ {aka ‘struct ZydisDecodedInstruction’} has no member named ‘operands’
185 | instr.operands[1].type == ZYDIS_OPERAND_TYPE_MEMORY)
| ^~~~~~~~
/home/gavin/nvlax/src/lax_encode.cc:189:34: error: ‘ZydisDecodedInstruction’ {aka ‘struct ZydisDecodedInstruction’} has no member named ‘operands’
189 | instr.operands[1].mem.disp.value;
| ^~~~~~~~
/home/gavin/nvlax/src/lax_encode.cc:194:27: error: ‘ZydisDecodedInstruction’ {aka ‘struct ZydisDecodedInstruction’} has no member named ‘operands’
194 | instr.operands[0].mem.disp.value / 8 == 30)
| ^~~~~~~~
In file included from /home/gavin/nvlax/build/_deps/zydis-src/include/Zydis/Status.h:35,
from /home/gavin/nvlax/build/deps/zydis-src/include/Zydis/Decoder.h:38,
from /home/gavin/nvlax/build/deps/zydis-src/include/Zydis/Zydis.h:39,
from /home/gavin/nvlax/src/lax_encode.cc:17:
/home/gavin/nvlax/src/lax_encode.cc:206:33: error: ‘ZydisDecoderDecodeBuffer’ was not declared in this scope; did you mean ‘ZydisDecoderDecodeFull’?
206 | while (ZYAN_SUCCESS(ZydisDecoderDecodeBuffer(&decoder, data, length, &instr))) {
| ^~~~~~~~~~~~~~~~~~~~~~~~
/home/gavin/nvlax/build/deps/zydis-src/dependencies/zycore/include/Zycore/Status.h:82:9: note: in definition of macro ‘ZYAN_SUCCESS’
82 | (!((status) & 0x80000000u))
| ^~~~~~
/home/gavin/nvlax/src/lax_encode.cc:209:27: error: ‘ZydisDecodedInstruction’ {aka ‘struct ZydisDecodedInstruction’} has no member named ‘operands’
209 | instr.operands[0].mem.base == ZYDIS_REGISTER_ESI &&
| ^~~~~~~~
/home/gavin/nvlax/src/lax_encode.cc:210:27: error: ‘ZydisDecodedInstruction’ {aka ‘struct ZydisDecodedInstruction’} has no member named ‘operands’
210 | instr.operands[0].mem.disp.value / 4 == 31)
| ^~~~~~~~
/home/gavin/nvlax/src/lax_encode.cc:213:68: error: ‘ZydisDecodedInstruction’ {aka ‘struct ZydisDecodedInstruction’} has no member named ‘operands’
213 | offset = follow_thunk(bin->rva_to_offset(instr.operands[1].imm.value.u));
| ^~~~~~~~

In file included from /home/gavin/nvlax/build/_deps/zydis-src/include/Zydis/Status.h:35,
from /home/gavin/nvlax/build/_deps/zydis-src/include/Zydis/Decoder.h:38,
from /home/gavin/nvlax/build/deps/zydis-src/include/Zydis/Zydis.h:39,
from /home/gavin/nvlax/src/lax_encode.cc:17:
/home/gavin/nvlax/src/lax_encode.cc:234:29: error: ‘ZydisDecoderDecodeBuffer’ was not declared in this scope; did you mean ‘ZydisDecoderDecodeFull’?
234 | while (ZYAN_SUCCESS(ZydisDecoderDecodeBuffer(&decoder, data, length, &instr))) {
| ^~~~~~~~~~~~~~~~~~~~~~~~
/home/gavin/nvlax/build/deps/zydis-src/dependencies/zycore/include/Zycore/Status.h:82:9: note: in definition of macro ‘ZYAN_SUCCESS’
82 | (!((status) & 0x80000000u))
| ^~~~~~
/home/gavin/nvlax/src/lax_encode.cc:236:23: error: ‘ZydisDecodedInstruction’ {aka ‘struct ZydisDecodedInstruction’} has no member named ‘operands’
236 | instr.operands[0].reg.value == ZYDIS_REGISTER_EAX &&
| ^~~~~~~~
/home/gavin/nvlax/src/lax_encode.cc:237:23: error: ‘ZydisDecodedInstruction’ {aka ‘struct ZydisDecodedInstruction’} has no member named ‘operands’
237 | instr.operands[1].reg.value == ZYDIS_REGISTER_EAX &&
| ^~~~~~~~
make[2]: *** [CMakeFiles/nvlax_encode.dir/build.make:95: CMakeFiles/nvlax_encode.dir/src/lax_encode.cc.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:170: CMakeFiles/nvlax_encode.dir/all] Error 2
make: *** [Makefile:149: all] Error 2

Not sure how else to contact you, may not be the right place to ask this but it feels related.

NVENC isn't the only artificial limitation imposed on consumer end NVIDIA GPUs, another one I'm running into is a cap on the amount of unique displays you can have connected to a single GPU. NVIDIA has put that cap at 4, which even applies when using MST DisplayPort splitters or daisy chaining. Seems fairly similar to the NVENC cap as the same limitation is not imposed on Quadro GPUs of the same architecture.

I'm wondering if a patch can be similarly created to bypass this limitation.

Hello,

There is an issue with NvFBC: it's using the Vulkan API without requesting the proper API version. It didn't cause any harm until Vulkan was updated to version 1.3.204 which introduced a regression that made this improper use of its API starting to cause errors.

A patch for NvFBC was proposed to correct the API misuse, here's a link to the Vulkan-Loader issue with all the details (including the patch): KhronosGroup/Vulkan-Loader#894 (comment)

Could this patch be added to nvlax?

Regards,
Jules

I'm getting the error nvlax_encode: command not found after building via cmake, platform in this case is Windows 10 and I'm using WSL2.

What am I missing?

https://i.imgur.com/RzwTLxS.png

I can replicate both #11 and #16 using the master branch.

Hi!
Since I have system's DLL patched correctly (your patcher doesn't seem to pick up even 472.12, that's last patched driver by keylase/nvidia-patch), and from Windows itself invoking ffmpeg w/ nvenc accel doesn't result in session limiting, yet I still see session limiter in WSL itself:

I tried your patcher on /usr/lib/wsl/lib/libnvidia-encode.so.1 that's imported from host's %windir%\System32\DriverStore\FileRepository\nvmdi*\libnvidia-encode.so.1, and to my surprise, it seems as though this .so doesn't use libnvcuvid.so:

I looked at other issues in the repository, and it seems like providing .so would be helpful, so here it is:
libnvidia-encode.so.1.zip

➜ ./nvlax_encode -i /usr/lib/libnvidia-encode.so.495.44 -o /usr/lib/libnvidia-encode.so.495.44
[+] libnvidia-encode.so
Assertion 'found' failed (ERROR)
  in file lax_encode.cc, line 98
  function: void patch_linux(LIEF::ELF::Binary*)
terminate called after throwing an instance of 'ppk::assert::AssertionException'
  what():  
[1]    11117 abort (core dumped)  ./nvlax_encode -i /usr/lib/libnvidia-encode.so.495.44 -o

Followed the build instructions from the readme. Not sure what wrong.

Zydis as introduces breaking changes that prevent nvlax from being compiled.

For the time being, you could use CPMAddPackage("gh:zyantific/zydis#55dd08c210722aed81b38132f5fd4a04ec1943b5") or CPMAddPackage("gh:zyantific/zydis#v3.2.1") with some regression changes needed, rather than CPMAddPackage("gh:zyantific/zydis#master") or make the needed changes to nvlax.

Anyone confirmed that this patch is still working on newer drivers and/or causing issues or crashes?

~ > nvidia-smi
Wed Jun  7 05:00:03 2023       
+---------------------------------------------------------------------------------------+
| NVIDIA-SMI 530.41.03              Driver Version: 530.41.03    CUDA Version: 12.1 

Even having installed liblief-dev, it refuses to compile properly:

gitstore/nvlax/src/lax_encode.cc:45:78: error: ‘class LIEF::Symbol’ has no member named ‘value’
   45 |         auto v_func_bytes = bin->get_content_from_virtual_address(f_nvenc_ci.value(), 0x260);
      |                                                                              ^~~~~
gitstore/nvlax/src/lax_encode.cc:53:37: error: ‘class LIEF::Symbol’ has no member named ‘value’
   53 |                 offset = f_nvenc_ci.value() +
      |```