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When bswap_32 is a macro, png images fail to decode properly, patch by (Milan Cutka...
author
Milan Cutka
<cutka@szm.sk>
Fri, 12 Nov 2004 09:48:06 +0000
(09:48 +0000)
committer
Michael Niedermayer
<michaelni@gmx.at>
Fri, 12 Nov 2004 09:48:06 +0000
(09:48 +0000)
Originally committed as revision 3672 to svn://svn.ffmpeg.org/ffmpeg/trunk
libavcodec/png.c
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diff --git
a/libavcodec/png.c
b/libavcodec/png.c
index
079795a
..
11faa86
100644
(file)
--- a/
libavcodec/png.c
+++ b/
libavcodec/png.c
@@
-501,12
+501,14
@@
static int decode_frame(AVCodecContext *avctx,
if (ret != Z_OK)
return -1;
for(;;) {
+ int tag32;
if (s->bytestream >= s->bytestream_end)
goto fail;
length = get32(&s->bytestream);
if (length > 0x7fffffff)
goto fail;
- tag = bswap_32(get32(&s->bytestream));
+ tag32 = get32(&s->bytestream);
+ tag = bswap_32(tag32);
#ifdef DEBUG
printf("png: tag=%c%c%c%c length=%u\n",
(tag & 0xff),