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-rw-r--r--applications/codec/convertpng.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/applications/codec/convertpng.c b/applications/codec/convertpng.c
index 3b0151c6..beb533c0 100644
--- a/applications/codec/convertpng.c
+++ b/applications/codec/convertpng.c
@@ -440,7 +440,7 @@ int imagetopng(opj_image_t * image, const char *write_idf)
/* convert */
{
size_t width= image->comps[0].w;
- png_uint_32 y;
+ int y;
convert_32s_PXCX cvtPxToCx = convert_32s_PXCX_LUT[nr_comp];
convert_32sXXx_C1R cvt32sToPack = NULL;
png_int_32 adjust = image->comps[0].sgnd ? 1 << (prec - 1) : 0;