av_cold int ff_vc1_decode_init_alloc_tables(VC1Context *v) { MpegEncContext *s = &v->s; int i; int mb_height = FFALIGN(s->mb_height, 2); /* Allocate mb bitplanes */ v->mv_type_mb_plane = av_malloc (s->mb_stride * mb_height); v->direct_mb_plane = av_malloc (s->mb_stride * mb_height); v->forward_mb_plane = av_malloc (s->mb_stride * mb_height); v->fieldtx_plane = av_mallocz(s->mb_stride * mb_height); v->acpred_plane = av_malloc (s->mb_stride * mb_height); v->over_flags_plane = av_malloc (s->mb_stride * mb_height); v->n_allocated_blks = s->mb_width + 2; v->block = av_malloc(sizeof(*v->block) * v->n_allocated_blks); v->cbp_base = av_malloc(sizeof(v->cbp_base[0]) * 2 * s->mb_stride); v->cbp = v->cbp_base + s->mb_stride; v->ttblk_base = av_malloc(sizeof(v->ttblk_base[0]) * 2 * s->mb_stride); v->ttblk = v->ttblk_base + s->mb_stride; v->is_intra_base = av_mallocz(sizeof(v->is_intra_base[0]) * 2 * s->mb_stride); v->is_intra = v->is_intra_base + s->mb_stride; v->luma_mv_base = av_malloc(sizeof(v->luma_mv_base[0]) * 2 * s->mb_stride); v->luma_mv = v->luma_mv_base + s->mb_stride; /* allocate block type info in that way so it could be used with s->block_index[] */ v->mb_type_base = av_malloc(s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2); v->mb_type[0] = v->mb_type_base + s->b8_stride + 1; v->mb_type[1] = v->mb_type_base + s->b8_stride * (mb_height * 2 + 1) + s->mb_stride + 1; v->mb_type[2] = v->mb_type[1] + s->mb_stride * (mb_height + 1); /* allocate memory to store block level MV info */ v->blk_mv_type_base = av_mallocz( s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2); v->blk_mv_type = v->blk_mv_type_base + s->b8_stride + 1; v->mv_f_base = av_mallocz(2 * (s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2)); v->mv_f[0] = v->mv_f_base + s->b8_stride + 1; v->mv_f[1] = v->mv_f[0] + (s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2); v->mv_f_next_base = av_mallocz(2 * (s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2)); v->mv_f_next[0] = v->mv_f_next_base + s->b8_stride + 1; v->mv_f_next[1] = v->mv_f_next[0] + (s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2); ff_intrax8_common_init(&v->x8,s); if (s->avctx->codec_id == AV_CODEC_ID_WMV3IMAGE || s->avctx->codec_id == AV_CODEC_ID_VC1IMAGE) { for (i = 0; i < 4; i++) if (!(v->sr_rows[i >> 1][i & 1] = av_malloc(v->output_width))) return -1; } if (!v->mv_type_mb_plane || !v->direct_mb_plane || !v->acpred_plane || !v->over_flags_plane || !v->block || !v->cbp_base || !v->ttblk_base || !v->is_intra_base || !v->luma_mv_base || !v->mb_type_base) { goto error; } return 0; error: ff_vc1_decode_end(s->avctx); return AVERROR(ENOMEM); }