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Code Issues Releases Activity

libavcodec/jpeg2000dec : Prevent overriding SOP marker bit

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Currently, the COC marker overrides the SOP marker bit.
However, only the COD marker may set this value. This
patch fixes this bug.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Gautam Ramakrishnan 2020-07-14 22:13:13 +05:30 committed by Michael Niedermayer
parent 24c575e0aa
commit 05f3d37dd5
1 changed files with 3 additions and 1 deletions
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4
libavcodec/jpeg2000dec.c
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@ -588,7 +588,7 @@ static int get_coc(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c,
uint8_t *properties)
{
int compno, ret;
uint8_t has_eph;
uint8_t has_eph, has_sop;
if (bytestream2_get_bytes_left(&s->g) < 2) {
av_log(s->avctx, AV_LOG_ERROR, "Insufficient space for COC\n");
@ -606,8 +606,10 @@ static int get_coc(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c,
c += compno;
has_eph = c->csty & JPEG2000_CSTY_EPH;
has_sop = c->csty & JPEG2000_CSTY_SOP;
c->csty = bytestream2_get_byteu(&s->g);
c->csty |= has_eph; //do not override eph present bits from COD
c->csty |= has_sop; //do not override sop present bits from COD
if ((ret = get_cox(s, c)) < 0)
return ret;