1 files changed, 10 insertions, 0 deletions
diff --git a/libavformat/subtitles.h b/libavformat/subtitles.h
index 455b374f25..96de9fa5d4 100644
--- a/libavformat/subtitles.h
+++ b/libavformat/subtitles.h
@@ -96,4 +96,14 @@ const char *ff_smil_get_attr_ptr(const char *s, const char *attr);
  */
 void ff_subtitles_read_chunk(AVIOContext *pb, AVBPrint *buf);
 
+/**
+ * Get the number of characters to increment to jump to the next line, or to
+ * the end of the string.
+ */
+static av_always_inline int ff_subtitles_next_line(const char *ptr)
+{
+    int n = strcspn(ptr, "\n");
+    return n + !!*ptr;
+}
+
 #endif /* AVFORMAT_SUBTITLES_H */