| 44 | } CLLCContext; |
| 45 | |
| 46 | static int read_code_table(CLLCContext *ctx, GetBitContext *gb, VLC *vlc) |
| 47 | { |
| 48 | uint8_t symbols[256]; |
| 49 | uint8_t bits[256]; |
| 50 | int num_lens, num_codes, num_codes_sum; |
| 51 | int i, j, count; |
| 52 | |
| 53 | count = 0; |
| 54 | num_codes_sum = 0; |
| 55 | |
| 56 | num_lens = get_bits(gb, 5); |
| 57 | |
| 58 | if (num_lens > VLC_BITS * VLC_DEPTH) { |
| 59 | av_log(ctx->avctx, AV_LOG_ERROR, "To long VLCs %d\n", num_lens); |
| 60 | return AVERROR_INVALIDDATA; |
| 61 | } |
| 62 | |
| 63 | for (i = 0; i < num_lens; i++) { |
| 64 | num_codes = get_bits(gb, 9); |
| 65 | num_codes_sum += num_codes; |
| 66 | |
| 67 | if (num_codes_sum > 256) { |
| 68 | av_log(ctx->avctx, AV_LOG_ERROR, |
| 69 | "Too many VLCs (%d) to be read.\n", num_codes_sum); |
| 70 | return AVERROR_INVALIDDATA; |
| 71 | } |
| 72 | |
| 73 | for (j = 0; j < num_codes; j++) { |
| 74 | symbols[count] = get_bits(gb, 8); |
| 75 | bits[count] = i + 1; |
| 76 | |
| 77 | count++; |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | return ff_vlc_init_from_lengths(vlc, VLC_BITS, count, bits, 1, |
| 82 | symbols, 1, 1, 0, 0, ctx->avctx); |
| 83 | } |
| 84 | |
| 85 | /* |
| 86 | * Unlike the RGB24 read/restore, which reads in a component at a time, |
no test coverage detected