static void unref_picture(H264Context *h, Picture *pic) { int off = offsetof(Picture, tf) + sizeof(pic->tf); int i; if (!pic->f.data[0]) return; ff_thread_release_buffer(h->avctx, &pic->tf); av_buffer_unref(&pic->hwaccel_priv_buf); av_buffer_unref(&pic->qscale_table_buf); av_buffer_unref(&pic->mb_type_buf); for (i = 0; i < 2; i++) { av_buffer_unref(&pic->motion_val_buf[i]); av_buffer_unref(&pic->ref_index_buf[i]); } memset((uint8_t*)pic + off, 0, sizeof(*pic) - off); }