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Merge commit 'd57c737ac30cf079a342fa649fd4888c2d059dd9' 

* commit 'd57c737ac30cf079a342fa649fd4888c2d059dd9':
  jpeg2000: Simplify jpeg2000_decode_packets()
  jpeg2000: Do not crash on NULL node in tag_tree_decode
  jpeg2000: Refactor SOT marker parsing

Conflicts:
	libavcodec/jpeg2000dec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-07-03 16:22:11 +02:00
parent 1abb875c98 d57c737ac3
commit 19ff6f55e8
1 changed files with 19 additions and 6 deletions
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25
libavcodec/jpeg2000dec.c
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@ -123,7 +123,7 @@ static int tag_tree_decode(Jpeg2000DecoderContext *s, Jpeg2000TgtNode *node,
int sp = -1, curval = 0;
if (!node)
return AVERROR(EINVAL);
return AVERROR_INVALIDDATA;
while (node && !node->vis) {
stack[++sp] = node;
@ -508,8 +508,8 @@ static int get_sot(Jpeg2000DecoderContext *s, int n)
return AVERROR_PATCHWELCOME;
}
s->tile[s->curtileno].tp_idx = TPsot;
tp = s->tile[s->curtileno].tile_part + TPsot;
s->tile[Isot].tp_idx = TPsot;
tp = s->tile[Isot].tile_part + TPsot;
tp->tile_index = Isot;
tp->tp_end = s->g.buffer + Psot - n - 2;
@ -720,13 +720,16 @@ static int jpeg2000_decode_packet(Jpeg2000DecoderContext *s,
static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
{
int layno, reslevelno, compno, precno, ok_reslevel, ret;
int ret = 0;
int layno, reslevelno, compno, precno, ok_reslevel;
int x, y;
s->bit_index = 8;
switch (tile->codsty[0].prog_order) {
case JPEG2000_PGOD_LRCP:
case JPEG2000_PGOD_RLCP:
avpriv_request_sample(s->avctx, "Progression order RLCP");
case JPEG2000_PGOD_LRCP:
for (layno = 0; layno < tile->codsty[0].nlayers; layno++) {
ok_reslevel = 1;
for (reslevelno = 0; ok_reslevel; reslevelno++) {
@ -799,6 +802,16 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
}
break;
case JPEG2000_PGOD_RPCL:
avpriv_request_sample(s->avctx, "Progression order RPCL");
ret = AVERROR_PATCHWELCOME;
break;
case JPEG2000_PGOD_PCRL:
avpriv_request_sample(s->avctx, "Progression order PCRL");
ret = AVERROR_PATCHWELCOME;
break;
default:
break;
}
@ -806,7 +819,7 @@ static int jpeg2000_decode_packets(Jpeg2000DecoderContext *s, Jpeg2000Tile *tile
/* EOC marker reached */
bytestream2_skip(&s->g, 2);
return 0;
return ret;
}
/* TIER-1 routines */