1 files changed, 10 insertions, 0 deletions
diff --git a/libavformat/internal.h b/libavformat/internal.h
index 1b44beafb3..0119749ec2 100644
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -572,6 +572,16 @@ int ffio_open2_wrapper(struct AVFormatContext *s, AVIOContext **pb, const char *
  */
 #define FFERROR_REDO FFERRTAG('R','E','D','O')
 
+/**
+ * Utility function to open IO stream of output format.
+ *
+ * @param s AVFormatContext
+ * @param url URL or file name to open for writing
+ * @options optional options which will be passed to io_open callback
+ * @return >=0 on success, negative AVERROR in case of failure
+ */
+int ff_format_output_open(AVFormatContext *s, const char *url, AVDictionary **options);
+
 /*
  * A wrapper around AVFormatContext.io_close that should be used
  * instead of calling the pointer directly.