[Opalvoip-devel] openphone failed to preview video

[Shi Q. <qiu...@gm...>]

On the options-> video tab, when I select application: desktop/media
file/fake to preview, it says failed to open video
When I select directshow webcam, it just crashed.

platform: win 7 x64
stack trace:
  ucrtbased.dll!_chvalidator(int c, int mask) Line 36 C++
  ucrtbased.dll!fast_check(const int c, const int mask) Line 24 C++
  ucrtbased.dll!isspace(int c) Line 107 C++
  OpenPhone.exe!operator<<(std::basic_ostream<char,std::char_traits<char> >
& strm, const PComResult & result) Line 883 C++
  OpenPhone.exe!PVideoInputDevice_DirectShow::PlatformOpen() Line 1243 C++
  OpenPhone.exe!PVideoInputDevice_DirectShow::Open(const PString & devName,
bool startImmediate) Line 559 C++
  OpenPhone.exe!PVideoDevice::OpenFull(const PVideoDevice::OpenArgs & args,
bool startImmediate) Line 565 C++
> OpenPhone.exe!PVideoInputDevice::CreateOpenedDevice(const
PVideoDevice::OpenArgs & args, bool startImmediate) Line 1360 C++
  OpenPhone.exe!OptionsDialog::TestVideoThreadMain() Line 5966 C++
  OpenPhone.exe!PThreadObj<OptionsDialog>::Main() Line 822 C++
  OpenPhone.exe!PThread::InternalThreadMain() Line 3135 C++
  OpenPhone.exe!PThread::MainFunction(void * threadPtr) Line 773 C++
  ucrtbased.dll!invoke_thread_procedure(unsigned int(*)(void *) procedure,
void * const context) Line 92 C++
  ucrtbased.dll!thread_start<unsigned int (__cdecl*)(void * __ptr64)>(void
* const parameter) Line 115 C++
  kernel32.dll!BaseThreadInitThunk() Unknown
  ntdll.dll!RtlUserThreadStart() Unknown