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Code Issues Releases Activity

libavcodec/jpeg2000dec.c: fix error in cod marker

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This patch fixes an error where the COC marker
overrides all data of the SPcod field of the
COD marker. It must override only one bit of
SPcod field. This now allows p0_08.j2k to be
decoded correctly (mentioned in #4679).

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Gautam Ramakrishnan 2020-04-11 12:10:08 +05:30 committed by Michael Niedermayer
parent 12a5e0409d
commit e8344f21e1
1 changed files with 3 additions and 0 deletions
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libavcodec/jpeg2000dec.c
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@ -566,6 +566,7 @@ static int get_coc(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c,
uint8_t *properties)
{
int compno, ret;
uint8_t has_eph;
if (bytestream2_get_bytes_left(&s->g) < 2) {
av_log(s->avctx, AV_LOG_ERROR, "Insufficient space for COC\n");
@ -582,7 +583,9 @@ static int get_coc(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c,
}
c += compno;
has_eph = c->csty & JPEG2000_CSTY_EPH;
c->csty = bytestream2_get_byteu(&s->g);
c->csty |= has_eph; //do not override eph present bits from COD
if ((ret = get_cox(s, c)) < 0)
return ret;