118 static int tm2_read_tree(TM2Context *ctx, int length, TM2Huff *huff)  in tm2_read_tree()  argument
121     if (length > huff->max_bits) {  in tm2_read_tree()
123                huff->max_bits);  in tm2_read_tree()
131         if (huff->num >= huff->max_num) {  in tm2_read_tree()
135         huff->nums[huff->num] = get_bits_long(&ctx->gb, huff->val_bits);  in tm2_read_tree()
136         huff->lens[huff->num] = length;  in tm2_read_tree()
137         huff->num++;  in tm2_read_tree()
140         if ((ret2 = tm2_read_tree(ctx, length + 1, huff)) < 0)  in tm2_read_tree()
142         if ((ret = tm2_read_tree(ctx, length + 1, huff)) < 0)  in tm2_read_tree()
150     TM2Huff huff;  in tm2_build_huff_table()  local
153     huff.val_bits = get_bits(&ctx->gb, 5);  in tm2_build_huff_table()
154     huff.max_bits = get_bits(&ctx->gb, 5);  in tm2_build_huff_table()
155     huff.min_bits = get_bits(&ctx->gb, 5);  in tm2_build_huff_table()
156     huff.nodes    = get_bits(&ctx->gb, 17);  in tm2_build_huff_table()
157     huff.num      = 0;  in tm2_build_huff_table()
160     if ((huff.val_bits < 1) || (huff.val_bits > 32) ||  in tm2_build_huff_table()
161         (huff.max_bits < 0) || (huff.max_bits > 25)) {  in tm2_build_huff_table()
163                "length: %i, max code length: %i\n", huff.val_bits, huff.max_bits);  in tm2_build_huff_table()
166     if ((huff.nodes <= 0) || (huff.nodes > 0x10000)) {  in tm2_build_huff_table()
168                "nodes: %i\n", huff.nodes);  in tm2_build_huff_table()
172     if (huff.max_bits == 0)  in tm2_build_huff_table()
173         huff.max_bits = 1;  in tm2_build_huff_table()
176     huff.max_num = (huff.nodes + 1) >> 1;  in tm2_build_huff_table()
177     huff.nums    = av_calloc(huff.max_num, sizeof(int));  in tm2_build_huff_table()
178     huff.lens    = av_mallocz(huff.max_num);  in tm2_build_huff_table()
180     if (!huff.nums || !huff.lens) {  in tm2_build_huff_table()
185     res = tm2_read_tree(ctx, 0, &huff);  in tm2_build_huff_table()
187     if (res >= 0 && res != huff.max_bits) {  in tm2_build_huff_table()
189                res, huff.max_bits);  in tm2_build_huff_table()
192     if (huff.num != huff.max_num) {  in tm2_build_huff_table()
194                huff.num, huff.max_num);  in tm2_build_huff_table()
200         res = ff_init_vlc_from_lengths(&code->vlc, huff.max_bits, huff.max_num,  in tm2_build_huff_table()
201                                        huff.lens, sizeof(huff.lens[0]),  in tm2_build_huff_table()
206             code->bits = huff.max_bits;  in tm2_build_huff_table()
207             code->length = huff.max_num;  in tm2_build_huff_table()
208             code->recode = huff.nums;  in tm2_build_huff_table()
209             huff.nums = NULL;  in tm2_build_huff_table()
215     av_free(huff.nums);  in tm2_build_huff_table()
216     av_free(huff.lens);  in tm2_build_huff_table()