lavu/bprint: implement av_bprint_strftime().

1 files changed, 15 insertions, 1 deletions

diff --git a/libavutil/bprint.h b/libavutil/bprint.h
index c09b61f20f..f3915fe7b1 100644
--- a/libavutil/bprint.h
+++ b/libavutil/bprint.h
@@ -116,7 +116,7 @@ void av_bprint_init(AVBPrint *buf, unsigned size_init, unsigned size_max);
 void av_bprint_init_for_buffer(AVBPrint *buf, char *buffer, unsigned size);
 
 /**
- * Append a formated string to a print buffer.
+ * Append a formatted string to a print buffer.
  */
 void av_bprintf(AVBPrint *buf, const char *fmt, ...) av_printf_format(2, 3);
 
@@ -125,6 +125,20 @@ void av_bprintf(AVBPrint *buf, const char *fmt, ...) av_printf_format(2, 3);
  */
 void av_bprint_chars(AVBPrint *buf, char c, unsigned n);
 
+struct tm;
+/**
+ * Append a formatted date and time to a print buffer.
+ *
+ * param buf  bprint buffer to use
+ * param fmt  date and time format string, see strftime()
+ * param tm   broken-down time structure to translate
+ *
+ * @note due to poor design of the standard strftime function, it may
+ * produce poor results if the format string expands to a very long text and
+ * the bprint buffer is near the limit stated by the size_max option.
+ */
+void av_bprint_strftime(AVBPrint *buf, const char *fmt, const struct tm *tm);
+
 /**
  * Allocate bytes in the buffer for external use.
  *