avcodec/vlc: Use structure instead of VLC_TYPE array as VLC element

In C, qualifiers for arrays are broken:
const VLC_TYPE (*foo)[2] is a pointer to an array of two const VLC_TYPE
elements and unfortunately this is not compatible with a pointer
to a const array of two VLC_TYPE, because the latter does not exist
as array types are never qualified (the qualifier applies to the base
type instead). This is the reason why get_vlc2() doesn't accept
a const VLC table despite not modifying the table at all, as
there is no automatic conversion from VLC_TYPE (*)[2] to
const VLC_TYPE (*)[2].

Fix this by using a structure VLCElem for the VLC table.
This also has the advantage of making it clear which
element is which.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/libavcodec/mss4.c b/libavcodec/mss4.c
index be73e52a91..9f3c4a593d 100644
--- a/libavcodec/mss4.c
+++ b/libavcodec/mss4.c
@@ -100,7 +100,7 @@ static VLC vec_entry_vlc[2];
 static av_cold void mss4_init_vlc(VLC *vlc, unsigned *offset,
                                   const uint8_t *lens, const uint8_t *syms)
 {
-    static VLC_TYPE vlc_buf[2146][2];
+    static VLCElem vlc_buf[2146];
     uint8_t  bits[MAX_ENTRIES];
     int i, j;
     int idx = 0;