ff_vaapi_alloc_bitplane   54 libavcodec/vaapi_internal.h uint8_t *ff_vaapi_alloc_bitplane(struct vaapi_context *vactx, uint32_t size);
ff_vaapi_alloc_bitplane  299 libavcodec/vaapi_vc1.c         bitplane = ff_vaapi_alloc_bitplane(vactx, (s->mb_width * s->mb_height + 1) / 2);