avcodec: Add const to decoder packet data pointers

The packets given to decoder need not be writable,
so it is best to access them via const uint8_t*.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/libavcodec/yop.c b/libavcodec/yop.c
index 5befbb072e..7a11ca77b8 100644
--- a/libavcodec/yop.c
+++ b/libavcodec/yop.c
@@ -40,9 +40,9 @@ typedef struct YopDecContext {
     int first_color[2];
     int frame_data_length;
 
-    uint8_t *low_nibble;
-    uint8_t *srcptr;
-    uint8_t *src_end;
+    const uint8_t *low_nibble;
+    const uint8_t *srcptr;
+    const uint8_t *src_end;
     uint8_t *dstptr;
     uint8_t *dstbuf;
 } YopDecContext;