[HEVCd] Added HDR SEI info parsing for HEVC decoding

[pengxin99]

For #2597

Attach the MFX_EXTBUFF_MASTERING_DISPLAY_COLOUR_VOLUME and MFX_EXTBUFF_CONTENT_LIGHT_LEVEL_INFO to outputSurface when you need this info for HEVC HDR transfer.

     mfxFrameSurface1& surf;
    // Mastering Display Colour Volume SEI info
    mfxExtMasteringDisplayColourVolume* pExtPar_MasteringDisplay = new mfxExtMasteringDisplayColourVolume{};
    pExtPar_MasteringDisplay->Header.BufferId = MFX_EXTBUFF_MASTERING_DISPLAY_COLOUR_VOLUME;
    pExtPar_MasteringDisplay->Header.BufferSz = sizeof(mfxExtMasteringDisplayColourVolume);
    
    // Mastering Content Light Level info
    mfxExtContentLightLevelInfo* pExtPar_ContentLight = new mfxExtContentLightLevelInfo{};
    pExtPar_ContentLight->Header.BufferId = MFX_EXTBUFF_CONTENT_LIGHT_LEVEL_INFO;
    pExtPar_ContentLight->Header.BufferSz = sizeof(mfxExtContentLightLevelInfo);

    surf.Data.ExtParam[0] = reinterpret_cast<mfxExtBuffer*>(pExtPar_MasteringDisplay);
    surf.Data.ExtParam[1] = reinterpret_cast<mfxExtBuffer*>(pExtPar_ContentLight);

[dmitryermilov]

AFAIU HDR SEI might be present not on each frame. If so, what is the expectation here: shall decoder repeat previous SEI HDR info ? It may require ARB discussion.

• @dgurulev for his input.

[pengxin99]

Now, the related ExtBuffer will use the default value 0 for the frame not include HDR SEI. And can do modify according to the ARB discussion

[softworkz]

Hi, what happened to this PR?

It doesn't look like there would be any showstopping reason?

[dmitryermilov]

LGTM but we need to decide if we need to update manual, especially for VPL. I'll ping Igor.