X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavutil%2Fimgutils.c;h=c733cb5cf54a7dd0996dbfecd405bcd6d0cd9c54;hb=f05f210526a3dc2d9fa6b1c228e3907ebd1d43c6;hp=4938a7ef6767f5a7e7e0a103b2435e0a32e3a76b;hpb=50ae1f7e0ff1fa00236622415039f7e28d919a25;p=ffmpeg

diff --git a/libavutil/imgutils.c b/libavutil/imgutils.c
index 4938a7ef676..c733cb5cf54 100644
--- a/libavutil/imgutils.c
+++ b/libavutil/imgutils.c
@@ -311,8 +311,8 @@ static void image_copy_plane(uint8_t       *dst, ptrdiff_t dst_linesize,
 {
     if (!dst || !src)
         return;
-    av_assert0(abs(src_linesize) >= bytewidth);
-    av_assert0(abs(dst_linesize) >= bytewidth);
+    av_assert0(FFABS(src_linesize) >= bytewidth);
+    av_assert0(FFABS(dst_linesize) >= bytewidth);
     for (;height > 0; height--) {
         memcpy(dst, src, bytewidth);
         dst += dst_linesize;
@@ -501,7 +501,6 @@ int av_image_copy_to_buffer(uint8_t *dst, int dst_size,
 static void memset_bytes(uint8_t *dst, size_t dst_size, uint8_t *clear,
                          size_t clear_size)
 {
-    size_t pos = 0;
     int same = 1;
     int i;
 
@@ -521,28 +520,12 @@ static void memset_bytes(uint8_t *dst, size_t dst_size, uint8_t *clear,
     if (clear_size == 1) {
         memset(dst, clear[0], dst_size);
         dst_size = 0;
-    } else if (clear_size == 2) {
-        uint16_t val = AV_RN16(clear);
-        for (; dst_size >= 2; dst_size -= 2) {
-            AV_WN16(dst, val);
-            dst += 2;
-        }
-    } else if (clear_size == 4) {
-        uint32_t val = AV_RN32(clear);
-        for (; dst_size >= 4; dst_size -= 4) {
-            AV_WN32(dst, val);
-            dst += 4;
-        }
-    } else if (clear_size == 8) {
-        uint32_t val = AV_RN64(clear);
-        for (; dst_size >= 8; dst_size -= 8) {
-            AV_WN64(dst, val);
-            dst += 8;
-        }
+    } else {
+        if (clear_size > dst_size)
+            clear_size = dst_size;
+        memcpy(dst, clear, clear_size);
+        av_memcpy_backptr(dst + clear_size, clear_size, dst_size - clear_size);
     }
-
-    for (; dst_size; dst_size--)
-        *dst++ = clear[pos++ % clear_size];
 }
 
 // Maximum size in bytes of a plane element (usually a pixel, or multiple pixels