[Opensvcdecoder-support] question about DisplayOrderSvc(...)

[ChengHsin H. <ch...@cs...>]

Greetings,

I like to thank all the developers for their contributions toward this
wonderful software.

I'm reading some of the opensvc code, in particular, I like to
understand how does DisplayOrderSVC() work. I'm not following the
if-clause quoted below. Why do we want to check if nb_img_display -
num_free_poc_address >= nb_img_display?

      //Detect if we have waited enough decoded frame except for the
first frame.
        if (Nal -> DqIdMax == Nal -> DqId && ((Mmo -> nb_img_display -
Mmo -> num_free_poc_address >= Mmo -> nb_img_display)
            || (!Mmo -> LayerMMO [0] . num_decoded_frame))){

            SearchFrameToDisplay(Nal, Mmo, x_size, y_size, Crop,
ImgToDisplay, address_pic);
        }else{
           .......
        }

Also, I'm guessing nb_img_display is the number of frames in the
current GoP. Am I right?

Any hints are highly appreciated.

Best regards,
Chenghsin