On 12/19/16, James Almer <jamr...@gmail.com> wrote:
> On 12/19/2016 11:18 AM, Paul B Mahol wrote:
>> +static int read_low_coeffs(AVCodecContext *avctx, int16_t *dst, int size)
>> +{
>> + PixletContext *ctx = avctx->priv_data;
>> + GetBitContext *b = &ctx->gbit;
>> + unsigned value, cnt1, nbits, j, i = 0;
>> + int rlen, flag = 0, escape;
>> + int64_t rparam = 3;
>> +
>> + while (i < size) {
>> + nbits = FFMIN(ff_clz((rparam >> 8) + 3) ^ 0x1F, 14);
>> +
>> + cnt1 = get_unary(b, 0, 8);
>> + if (cnt1 < 8) {
>> + value = show_bits(b, nbits);
>> + if (value <= 1) {
>> + skip_bits(b, nbits - 1);
>> + escape = ((1 << nbits) - 1) * cnt1;
>> + } else {
>> + skip_bits(b, nbits);
>> + escape = value + ((1 << nbits) - 1) * cnt1 - 1;
>> + }
>> + } else {
>> + escape = get_bits(b, 16);
>> + }
>> +
>> + rlen = -((escape + flag) & 1) | 1;
>> + dst[i++] = rlen * ((escape + flag + 1) >> 1);
>> + rparam += 120 * (escape + flag) - (120 * rparam >> 8);
>> + flag = 0;
>> +
>> + if (rparam * 4 > 0xFF || i >= size)
>> + continue;
>> +
>> + nbits = ((rparam + 8) >> 5) + (rparam ? ff_clz(rparam) : 32) -
>> 24;
>> + escape = 16383 & ((1 << nbits) - 1);
>
> escape = av_mod_uintp2(16383, nbits);
>
Changed locally. Thanks!
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