static int huff_build10(VLC *vlc, uint8_t *len) { HuffEntry he[1024]; uint32_t codes[1024]; uint8_t bits[1024]; uint16_t syms[1024]; uint32_t code; int i; for (i = 0; i < 1024; i++) { he[i].sym = 1023 - i; he[i].len = len[i]; } AV_QSORT(he, 1024, HuffEntry, huff_cmp_len10); code = 1; for (i = 1023; i >= 0; i--) { codes[i] = code >> (32 - he[i].len); bits[i] = he[i].len; syms[i] = he[i].sym; code += 0x80000000u >> (he[i].len - 1); } ff_free_vlc(vlc); return ff_init_vlc_sparse(vlc, FFMIN(he[1023].len, 12), 1024, bits, sizeof(*bits), sizeof(*bits), codes, sizeof(*codes), sizeof(*codes), syms, sizeof(*syms), sizeof(*syms), 0); }