vgmstream/ext_libs/ffmpeg-revert-bcrypt-random.patch

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diff --git a/configure b/configure
--- a/configure
+++ b/configure
@@ -2182,10 +2182,10 @@ SYSTEM_FUNCS="
"
SYSTEM_LIBRARIES="
- bcrypt
vaapi_drm
vaapi_x11
vdpau_x11
+ wincrypt
"
TOOLCHAIN_FEATURES="
@@ -3537,7 +3537,7 @@ avdevice_extralibs="libm_extralibs"
avformat_suggest="libm network zlib"
avresample_deps="avutil"
avresample_suggest="libm"
-avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
+avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"
postproc_deps="avutil gpl"
postproc_suggest="libm"
swresample_deps="avutil"
@@ -5945,11 +5945,10 @@ check_header windows.h
check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar"
check_lib advapi32 "windows.h" RegCloseKey -ladvapi32
-check_lib bcrypt "windows.h bcrypt.h" BCryptGenRandom -lbcrypt &&
- check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"
check_lib ole32 "windows.h" CoTaskMemFree -lole32
check_lib shell32 "windows.h shellapi.h" CommandLineToArgvW -lshell32
check_lib psapi "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
+check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom -ladvapi32
check_lib android android/native_window.h ANativeWindow_acquire -landroid
check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk
diff --git a/libavutil/random_seed.c b/libavutil/random_seed.c
--- a/libavutil/random_seed.c
+++ b/libavutil/random_seed.c
@@ -26,9 +26,9 @@
#if HAVE_IO_H
#include <io.h>
#endif
-#if HAVE_BCRYPT
+#if HAVE_WINCRYPT
#include <windows.h>
-#include <bcrypt.h>
+#include <wincrypt.h>
#endif
#include <fcntl.h>
#include <math.h>
@@ -121,14 +121,13 @@ uint32_t av_get_random_seed(void)
{
uint32_t seed;
-#if HAVE_BCRYPT
- BCRYPT_ALG_HANDLE algo_handle;
- NTSTATUS ret = BCryptOpenAlgorithmProvider(&algo_handle, BCRYPT_RNG_ALGORITHM,
- MS_PRIMITIVE_PROVIDER, 0);
- if (BCRYPT_SUCCESS(ret)) {
- NTSTATUS ret = BCryptGenRandom(algo_handle, (UCHAR*)&seed, sizeof(seed), 0);
- BCryptCloseAlgorithmProvider(algo_handle, 0);
- if (BCRYPT_SUCCESS(ret))
+#if HAVE_WINCRYPT
+ HCRYPTPROV provider;
+ if (CryptAcquireContext(&provider, NULL, NULL, PROV_RSA_FULL,
+ CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
+ BOOL ret = CryptGenRandom(provider, sizeof(seed), (PBYTE) &seed);
+ CryptReleaseContext(provider, 0);
+ if (ret)
return seed;
}
#endif