av_freep(&s->prev_pict_types);
void MPV_common_end(MpegEncContext *s){    int i;    av_freep(&s->mb_type);    av_freep(&s->p_mv_table);    av_freep(&s->b_forw_mv_table);    av_freep(&s->b_back_mv_table);    av_freep(&s->b_bidir_forw_mv_table);    av_freep(&s->b_bidir_back_mv_table);    av_freep(&s->b_direct_mv_table);    av_freep(&s->motion_val);    av_freep(&s->dc_val[0]);    av_freep(&s->ac_val[0]);    av_freep(&s->coded_block);    av_freep(&s->mbintra_table);    av_freep(&s->cbp_table);    av_freep(&s->pred_dir_table);    av_freep(&s->me.scratchpad);    av_freep(&s->me.map);    av_freep(&s->me.score_map);        av_freep(&s->mbskip_table);    av_freep(&s->bitstream_buffer);    av_freep(&s->tex_pb_buffer);    av_freep(&s->pb2_buffer);    av_freep(&s->allocated_edge_emu_buffer); s->edge_emu_buffer= NULL;    av_freep(&s->co_located_type_table);    av_freep(&s->field_mv_table);    av_freep(&s->field_select_table);    av_freep(&s->avctx->stats_out);    av_freep(&s->ac_stats);    av_freep(&s->error_status_table);    for(i=0; i<MAX_PICTURE_COUNT; i++){        free_picture(s, &s->picture[i]);    }    s->context_initialized = 0;}