basic type mechanism working

1 files changed, 3 insertions, 2 deletions

diff --git a/ffmpeg/libavcodec/pngdsp.c b/ffmpeg/libavcodec/pngdsp.c
index 1ee8b57..5ab1c35 100644
--- a/ffmpeg/libavcodec/pngdsp.c
+++ b/ffmpeg/libavcodec/pngdsp.c
@@ -19,6 +19,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "libavutil/attributes.h"
 #include "libavutil/common.h"
 #include "png.h"
 #include "pngdsp.h"
@@ -30,7 +31,7 @@
 static void add_bytes_l2_c(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w)
 {
     long i;
-    for (i = 0; i <= w - sizeof(long); i += sizeof(long)) {
+    for (i = 0; i <= w - (int)sizeof(long); i += sizeof(long)) {
         long a = *(long *)(src1 + i);
         long b = *(long *)(src2 + i);
         *(long *)(dst + i) = ((a & pb_7f) + (b & pb_7f)) ^ ((a ^ b) & pb_80);
@@ -39,7 +40,7 @@ static void add_bytes_l2_c(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w)
         dst[i] = src1[i] + src2[i];
 }
 
-void ff_pngdsp_init(PNGDSPContext *dsp)
+av_cold void ff_pngdsp_init(PNGDSPContext *dsp)
 {
     dsp->add_bytes_l2         = add_bytes_l2_c;
     dsp->add_paeth_prediction = ff_add_png_paeth_prediction;