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avcodec/tiff_common: allow count = 0 in ff_tadd_bytes_metadata()

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Fixes Ticket3103

Reviewed-by: Thilo Borgmann <thilo.borgmann@mail.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 73d887733d)
This commit is contained in:
Michael Niedermayer
2013-10-31 23:29:01 +01:00
committed by Carl Eugen Hoyos
parent 5c8845a554
commit 3193b85be3
1 changed files with 1 additions and 1 deletions
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libavcodec/tiff_common.c
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@@ -219,7 +219,7 @@ int ff_tadd_bytes_metadata(int count, const char *name, const char *sep,
char *ap; char *ap;
int i; int i;
if (count >= INT_MAX / sizeof(int8_t) || count <= 0) if (count >= INT_MAX / sizeof(int8_t) || count < 0)
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
if (bytestream2_get_bytes_left(gb) < count * sizeof(int8_t)) if (bytestream2_get_bytes_left(gb) < count * sizeof(int8_t))
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;