avctx->draw_horiz_band = CDecoder::FFDrawSlice;
avctx->slice_flags=SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
avctx->hwaccel_context = &m_hwContext;
avctx->draw_horiz_band = CDecoder::FFDrawSlice;
avctx->slice_flags=SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
avctx->hwaccel_context = &m_hwContext;