ConvertFrame() returned: 0x80000001

Hi,
I am trying to create bmdFormat12BitRGBLE(R12L) from bmdFormat8BitYUV(2vuy).
It always returned E_NOTIMPL. Is there any error in my code?

Code: Select all

// videoFrame->dlRGB using IDeckLinkVideoConversion::ConvertFrame()
{
    NSLog(@"videoFrame: w=%ld, h=%ld, stride=%ld, format=%@",
          videoFrame->GetWidth(), videoFrame->GetHeight(), videoFrame->GetRowBytes(),
          NSFileTypeForHFSTypeCode(videoFrame->GetPixelFormat()));
    NSLog(@"     dlRGB: w=%ld, h=%ld, stride=%ld, format=%@",
          dlRGB->GetWidth(), dlRGB->GetHeight(), dlRGB->GetRowBytes(),
          NSFileTypeForHFSTypeCode(dlRGB->GetPixelFormat()));

    HRESULT err = conversion->ConvertFrame(videoFrame, dlRGB);
   
    NSLog(@"IDeckLinkVideoConversion::ConvertFrame() returned: 0x%08x", err);
   
    if (err != S_OK) return FALSE;
}

Actual output is following:

Code: Select all

2020-09-27 17:01:42.701461+0900 DLABTest[29091:1129429] videoFrame:w=720, h=486, stride=1440, format='2vuy'
2020-09-27 17:01:42.701642+0900 DLABTest[29091:1129429]      dlRGB:w=720, h=486, stride=3240, format='R12L'
2020-09-27 17:01:42.701749+0900 DLABTest[29091:1129429] IDeckLinkVideoConversion::ConvertFrame() returned: 0x80000001


[Cameron Nichols]

Hi Takashi,

There is no direct conversion path from bmdFormat8BitYUV to bmdFormat12BitRGBLE, hence why IDeckLinkVideoConversion::ConvertFrame returns E_NOTIMPL.

To implement this conversion path, you will need 2-stages:

• bmdFormat8BitYUV - 8-bit 4:2:2 SMPTE range, to
• bmdFormat8BitARGB - 8-bit 4:4:4:4 full-range, to
• bmdFormat12BitRGBLE - 12-bit 4:4:4 full-range

Regards
Cameron