static int read_old_huffman_tables(HYuvContext *s){ #if 1 GetBitContext gb; int i; init_get_bits(&gb, classic_shift_luma, sizeof(classic_shift_luma)*8); if(read_len_table(s->len[0], &gb)<0) return -1; init_get_bits(&gb, classic_shift_chroma, sizeof(classic_shift_chroma)*8); if(read_len_table(s->len[1], &gb)<0) return -1; for(i=0; i<256; i++) s->bits[0][i] = classic_add_luma [i]; for(i=0; i<256; i++) s->bits[1][i] = classic_add_chroma[i]; if(s->bitstream_bpp >= 24){ memcpy(s->bits[1], s->bits[0], 256*sizeof(uint32_t)); memcpy(s->len[1] , s->len [0], 256*sizeof(uint8_t)); } memcpy(s->bits[2], s->bits[1], 256*sizeof(uint32_t)); memcpy(s->len[2] , s->len [1], 256*sizeof(uint8_t)); for(i=0; i<3; i++){ ff_free_vlc(&s->vlc[i]); init_vlc(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1, s->bits[i], 4, 4, 0); } generate_joint_tables(s); return 0; #else av_log(s->avctx, AV_LOG_DEBUG, "v1 huffyuv is not supported \n"); return -1; #endif }