Put strings inside struct instead of extra indirection.

Saves a bit on space and relocations.
Also makes the (very hackish) lossless conversion check
in ffmpeg.c work reliably.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

libavutil/samplefmt.c

@@ -23,7 +23,7 @@
 #include <string.h>
 
 typedef struct SampleFmtInfo {
-    const char *name;
+    char name[4];
     int bits;
 } SampleFmtInfo;