This patch is to make FFHWBaseEncodeContext a standalone component
and avoid getting FFHWBaseEncodeContext from avctx->priv_data.
This patch also removes some unnecessary AVCodecContext arguments.
For receive_packet call, a small wrapper is introduced.
Signed-off-by: Tong Wu <tong1.wu@intel.com>
Move receive_packet function to base. This requires adding *alloc,
*issue, *output, *free as hardware callbacks. HWBaseEncodePicture is
introduced as the base layer structure. The related parameters in
VAAPIEncodeContext are also extracted to HWBaseEncodeContext. Then DPB
management logic can be fully extracted to base layer as-is.
Signed-off-by: Tong Wu <tong1.wu@intel.com>
Since VAAPI and future D3D12VA implementation may share some common parameters,
a base layer encode context is introduced as vaapi context's base.
Signed-off-by: Tong Wu <tong1.wu@intel.com>
