1 files changed, 73 insertions, 0 deletions
diff --git a/libavutil/utf8.c b/libavutil/utf8.c
new file mode 100644
index 0000000000..3447a5192b
--- /dev/null
+++ b/libavutil/utf8.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2013 Stefano Sabatini
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifdef TEST
+#include <stdio.h>
+
+#include "libavutil/avstring.h"
+#include "libavutil/file.h"
+
+static void print_sequence(const char *p, int l, int indent)
+{
+    int i;
+    for (i = 0; i < l; i++)
+        printf("%02X", (uint8_t)p[i]);
+    printf("%*s", indent-l*2, "");
+}
+
+int main(int argc, char **argv)
+{
+    int ret;
+    char *filename = argv[1];
+    uint8_t *file_buf;
+    size_t file_buf_size;
+    uint32_t code;
+    const uint8_t *p, *endp;
+
+    ret = av_file_map(filename, &file_buf, &file_buf_size, 0, NULL);
+    if (ret < 0)
+        return 1;
+
+    p = file_buf;
+    endp = file_buf + file_buf_size;
+    while (p < endp) {
+        int l, r;
+        const uint8_t *p0 = p;
+        code = UINT32_MAX;
+        r = av_utf8_decode(&code, &p, endp, 0);
+        l = (int)(p-p0);
+        print_sequence(p0, l, 20);
+        if (code != UINT32_MAX) {
+            printf("%-10d 0x%-10X %-5d ", code, code, l);
+            if (r >= 0) {
+                if (*p0 == '\n') printf("\\n\n");
+                else             printf ("%.*s\n", l, p0);
+            } else {
+                printf("invalid code range\n");
+            }
+        } else {
+            printf("invalid sequence\n");
+        }
+    }
+
+    av_file_unmap(file_buf, file_buf_size);
+    return 0;
+}
+#endif