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avcodec/scpr: stop checking for overread twice

This commit is contained in:
Paul B Mahol 2018-09-09 14:06:57 +02:00
parent 5161f7bcfd
commit 4b1b47e81b
1 changed files with 2 additions and 2 deletions
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4
libavcodec/scpr.c
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@ -136,7 +136,7 @@ static int decode(GetByteContext *gb, RangeCoder *rc, unsigned cumFreq, unsigned
rc->range *= freq;
while (rc->range < TOP && bytestream2_get_bytes_left(gb) > 0) {
unsigned byte = bytestream2_get_byte(gb);
unsigned byte = bytestream2_get_byteu(gb);
rc->code = (rc->code << 8) | byte;
rc->range <<= 8;
}
@ -172,7 +172,7 @@ static int decode0(GetByteContext *gb, RangeCoder *rc, unsigned cumFreq, unsigne
rc->range = rc->range * (uint64_t)(freq + cumFreq) / total_freq - (t + 1);
while (rc->range < TOP && bytestream2_get_bytes_left(gb) > 0) {
unsigned byte = bytestream2_get_byte(gb);
unsigned byte = bytestream2_get_byteu(gb);
rc->code = (rc->code << 8) | byte;
rc->code1 <<= 8;
rc->range <<= 8;