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/qdm2_tablegen.c b/libavcodec/qdm2_tablegen.c
index e19b49b235..932da0c50b 100644
--- a/libavcodec/qdm2_tablegen.c
+++ b/libavcodec/qdm2_tablegen.c
@@ -42,7 +42,7 @@ int main(void)
 
     qdm2_init_vlc();
 
-    WRITE_2D_ARRAY("static const", VLC_TYPE, qdm2_table);
+    WRITE_VLC_TABLE("static const", qdm2_table);
     WRITE_VLC_TYPE("static const", vlc_tab_level, qdm2_table);
     WRITE_VLC_TYPE("static const", vlc_tab_diff, qdm2_table);
     WRITE_VLC_TYPE("static const", vlc_tab_run, qdm2_table);