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matroskadec: allow uint and float elements with length = 0
author
Aurelien Jacobs
<aurel@gnuage.org>
Sun, 5 Sep 2010 21:37:40 +0000
(21:37 +0000)
committer
Aurelien Jacobs
<aurel@gnuage.org>
Sun, 5 Sep 2010 21:37:40 +0000
(21:37 +0000)
Originally committed as revision 25044 to svn://svn.ffmpeg.org/ffmpeg/trunk
libavformat/matroskadec.c
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diff --git
a/libavformat/matroskadec.c
b/libavformat/matroskadec.c
index
5de60fa
..
888f099
100644
(file)
--- a/
libavformat/matroskadec.c
+++ b/
libavformat/matroskadec.c
@@
-583,7
+583,7
@@
static int ebml_read_uint(ByteIOContext *pb, int size, uint64_t *num)
{
int n = 0;
- if (size
< 1 || size
> 8)
+ if (size > 8)
return AVERROR_INVALIDDATA;
/* big-endian ordering; build up number */
@@
-600,7
+600,9
@@
static int ebml_read_uint(ByteIOContext *pb, int size, uint64_t *num)
*/
static int ebml_read_float(ByteIOContext *pb, int size, double *num)
{
- if (size == 4) {
+ if (size == 0) {
+ *num = 0;
+ } else if (size == 4) {
*num= av_int2flt(get_be32(pb));
} else if(size==8){
*num= av_int2dbl(get_be64(pb));