[FFmpeg-cvslog] doc/protocols: document cache option

[Gyan Doshi]

ffmpeg | branch: master | Gyan Doshi <ffmpeg at gyani.pro> | Sun Dec 27 15:08:24 2020 +0530| [bff6fbead81498525ef1366bb5bff31a2c737db5] | committer: Gyan Doshi

doc/protocols: document cache option

Add entry for read_ahead_limit

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=bff6fbead81498525ef1366bb5bff31a2c737db5
---

 doc/protocols.texi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/doc/protocols.texi b/doc/protocols.texi
index de377a9546..00a6665482 100644
--- a/doc/protocols.texi
+++ b/doc/protocols.texi
@@ -175,6 +175,16 @@ Caching wrapper for input stream.
 
 Cache the input stream to temporary file. It brings seeking capability to live streams.
 
+The accepted options are:
+ at table @option
+
+ at item read_ahead_limit
+Amount in bytes that may be read ahead when seeking isn't supported. Range is -1 to INT_MAX.
+-1 for unlimited. Default is 65536.
+
+ at end table
+
+URL Syntax is
 @example
 cache:@var{URL}
 @end example