static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr) { char *argstr_flat; wchar_t **argv_w; int i, buffsize = 0, offset = 0; if (win32_argv_utf8) { *argc_ptr = win32_argc; *argv_ptr = win32_argv_utf8; return; } win32_argc = 0; argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc); if (win32_argc <= 0 || !argv_w) return; /* determine the UTF-8 buffer size (including NULL-termination symbols) */ for (i = 0; i < win32_argc; i++) buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1, NULL, 0, NULL, NULL); win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize); argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1); if (win32_argv_utf8 == NULL) { LocalFree(argv_w); return; } for (i = 0; i < win32_argc; i++) { win32_argv_utf8[i] = &argstr_flat[offset]; offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1, &argstr_flat[offset], buffsize - offset, NULL, NULL); } win32_argv_utf8[i] = NULL; LocalFree(argv_w); *argc_ptr = win32_argc; *argv_ptr = win32_argv_utf8; }