[PATCH 4/4] Document url_filesize().

[Stefano Sabatini]

---
 libavformat/avio.h |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/libavformat/avio.h b/libavformat/avio.h
index 34437bc..9be9a13 100644
--- a/libavformat/avio.h
+++ b/libavformat/avio.h
@@ -184,6 +184,11 @@ int url_close(URLContext *h);
  */
 int url_exist(const char *url);
 
+/**
+ * Return the filesize of the resources accessed by h, AVERROR(ENOSYS)
+ * if the operation is not supported by h, or another negative value
+ * corresponding to an AVERROR error code in case of failure.
+ */
 int64_t url_filesize(URLContext *h);
 
 /**
-- 
1.7.1


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