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avutil/hwcontext_d3d11va: Use secure dlopen.

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dlopen contains additional security to prevent dll hijacking compared to standard LoadLibrary.
This commit is contained in:
Matt Oliver 2019-12-31 02:59:39 +11:00
parent 314a783bb8
commit f0c0ad4455
1 changed files with 3 additions and 2 deletions
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5
libavutil/hwcontext_d3d11va.c
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@ -39,6 +39,7 @@
#include "pixdesc.h" #include "pixdesc.h"
#include "pixfmt.h" #include "pixfmt.h"
#include "thread.h" #include "thread.h"
#include "compat/w32dlfcn.h"
typedef HRESULT(WINAPI *PFN_CREATE_DXGI_FACTORY)(REFIID riid, void **ppFactory); typedef HRESULT(WINAPI *PFN_CREATE_DXGI_FACTORY)(REFIID riid, void **ppFactory);
@ -55,8 +56,8 @@ static av_cold void load_functions(void)
// from too many LoadLibrary calls. // from too many LoadLibrary calls.
HANDLE d3dlib, dxgilib; HANDLE d3dlib, dxgilib;
d3dlib = LoadLibrary("d3d11.dll"); d3dlib = dlopen("d3d11.dll", 0);
dxgilib = LoadLibrary("dxgi.dll"); dxgilib = dlopen("dxgi.dll", 0);
if (!d3dlib || !dxgilib) if (!d3dlib || !dxgilib)
return; return;