avcodec/cbs_jpeg: Fix size of huffman symbol table array

L[i] can be in the range of 0-255, see table B.5 of ITU T.81.

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

libavcodec/cbs_jpeg.h

@@ -99,7 +99,7 @@ typedef struct JPEGRawHuffmanTable {
     uint8_t  Tc;
     uint8_t  Th;
     uint8_t  L[16];
-    uint8_t  V[224];
+    uint8_t  V[256];
 } JPEGRawHuffmanTable;
 
 typedef struct JPEGRawHuffmanTableSpecification {

libavcodec/cbs_jpeg_syntax_template.c

@@ -84,12 +84,12 @@ static int FUNC(huffman_table)(CodedBitstreamContext *ctx, RWContext *rw,
     u(4, Th, 0, 3);
 
     for (i = 0; i < 16; i++)
-        us(8, L[i], i, 0, 224);
+        us(8, L[i], i, 0, 255);
 
     ij = 0;
     for (i = 0; i < 16; i++) {
         for (j = 0; j < current->L[i]; j++) {
-            if (ij >= 224)
+            if (ij >= FF_ARRAY_ELEMS(current->V))
                 return AVERROR_INVALIDDATA;
             us(8, V[ij], ij, 0, 255);
             ++ij;