[Libva] reference frame array in mplayer vaapi

[Gwenole Beauchesne]

Hi,

On Mon, 29 Mar 2010, Xiang, Haihao wrote:

>   The reference frame array in mplayer-vaapi-20090828 is filled with h->ref_list however this array in mplayer-vaapi-20100224 is
> filled with h->short_ref/h->long_ref except GMA500. My test against the branch i965_h264 on libva shows that
> mplayer-vaapi-20090828 is right for us. Here I don’t understand your comments about GMA500 workaround in mplayer-vaapi-2010024.
> Why is filling reference frame array with h->ref_list wrong?

Because this is RefPicList{0,1} and does not fully represent the DPB. This 
also caused problems for other clips. Besides, FFmpeg's DPB is limited to 
pictures marked as "used for reference", and capped to num_ref_frames as 
reported in the bitstream.

h->short_ref/h->long_ref is what other HW accelerators use and work for 
them. In my old testing with MPC-HC, this also works with the GMA500 
driver for Windows 7.

Regards,
Gwenole.