DTS in wav: check frame size

Close #7282

modules/demux/mpeg/es.c

@@ -920,8 +920,22 @@ static int A52Init( demux_t *p_demux )
  *****************************************************************************/
 static int DtsCheckSync( const uint8_t *p_peek, int *pi_samples )
 {
-    /* TODO return frame size for robustness */
-    return SyncCode( p_peek );
+    unsigned int i_sample_rate, i_bit_rate, i_frame_length, i_audio_mode;
+    bool b_dts_hd;
+
+    VLC_UNUSED(pi_samples);
+
+    int i_frame_size = GetSyncInfo( p_peek,
+                                    &b_dts_hd,
+                                    &i_sample_rate,
+                                    &i_bit_rate,
+                                    &i_frame_length,
+                                    &i_audio_mode );
+
+    if( i_frame_size != VLC_EGENERIC && i_frame_size <= 8192 )
+        return VLC_SUCCESS;
+    else
+        return VLC_EGENERIC;
 }
 
 static int DtsProbe( demux_t *p_demux, int64_t *pi_offset )