utils: expose mimeType2ext in utils

2 files changed, 21 insertions, 0 deletions

diff --git a/src/utils/utils.c b/src/utils/utils.c
index ea0b424..ae60eee 100644
--- a/src/utils/utils.c
+++ b/src/utils/utils.c
@@ -140,6 +140,25 @@ int substitute_str(const char *subject, const char *pattern,
   return 0;
 }
 
+const char *mimeType2ext(const char *mimeType) {
+  static char mimeType_l[CHAR_MAX];
+  strcpy(mimeType_l, mimeType);
+  const char *exts[2];
+  size_t extsCount = 0;
+
+  char *token = strtok(mimeType_l, "/");
+  while (token != NULL && extsCount < 2) {
+    exts[extsCount++] = token;
+    token = strtok(NULL, "/");
+  }
+
+  if (extsCount == 2) {
+    return exts[1];
+  }
+
+  return "mp4"; // Cannot parse, use default
+}
+
 int repchr(char *str, char t, char r) {
   int c = 0;
   for (size_t i = 0; str[i] != '\0'; i++) {
diff --git a/src/utils/utils.h b/src/utils/utils.h
index f5bf8fc..f6bbad5 100644
--- a/src/utils/utils.h
+++ b/src/utils/utils.h
@@ -9,6 +9,8 @@ int regex_match(const char *, str_array_t, str_array_t *);
 int substitute_str(const char *subject, const char *pattern,
                    const char *replacement, char **presult);
 
+const char *mimeType2ext(const char *mimeType);
+
 int repchr(char *str, char t, char r);
 
 void free_and_nullify(void *p);