if ((ret = init_get_bits8(b, src, bytestream2_get_bytes_left(&ctx->gb))) < 0)
return ret;
- if ((a >= 0) + (a ^ (a >> 31)) - (a >> 31) != 1) {
- nbits = 33 - ff_clz((a >= 0) + (a ^ (a >> 31)) - (a >> 31) - 1);
+ if (a ^ (a >> 31)) {
+ nbits = 33 - ff_clz(a ^ (a >> 31));
if (nbits > 16)
return AVERROR_INVALIDDATA;
} else {
cnt1 = get_bits(b, nbits);
} else {
pfx = 14 + ((((uint64_t)(value - 14)) >> 32) & (value - 14));
+ if (pfx < 1 || pfx > 25)
+ return AVERROR_INVALIDDATA;
cnt1 *= (1 << pfx) - 1;
shbits = show_bits(b, pfx);
if (shbits <= 1) {
j = 0;
dst += stride;
}
- state += (int64_t)d * yflag - (d * state >> 8);
+ state += (int64_t)d * (uint64_t)yflag - ((int64_t)(d * (uint64_t)state) >> 8);
flag = 0;
- if (state * 4ULL > 0xFF || i >= size)
+ if ((uint64_t)state > 0xFF / 4 || i >= size)
continue;
pfx = ((state + 8) >> 5) + (state ? ff_clz(state): 32) - 24;
return AVERROR_INVALIDDATA;
}
+ if (a == INT32_MIN)
+ return AVERROR_INVALIDDATA;
+
ret = read_high_coeffs(avctx, ptr + bytestream2_tell(&ctx->gb), dest, size,
c, (b >= FFABS(a)) ? b : a, d,
ctx->band[plane][i + 1].width, stride);
width = bytestream2_get_be32(&ctx->gb);
height = bytestream2_get_be32(&ctx->gb);
+ if ( width > INT_MAX - (1U << (NB_LEVELS + 1))
+ || height > INT_MAX - (1U << (NB_LEVELS + 1)))
+ return AVERROR_INVALIDDATA;
+
w = FFALIGN(width, 1 << (NB_LEVELS + 1));
h = FFALIGN(height, 1 << (NB_LEVELS + 1));