[FFmpeg-devel] [PATCH 5/5] Document file protocol options

Andrey Utkin andrey.krieger.utkin at gmail.com
Sun Jul 14 12:43:25 CEST 2013

 doc/protocols.texi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/doc/protocols.texi b/doc/protocols.texi
index e8427aa..cd8bc30 100644
--- a/doc/protocols.texi
+++ b/doc/protocols.texi
@@ -129,6 +129,20 @@ The ff* tools default to the file protocol, that is a resource
 specified with the name "FILE.mpeg" is interpreted as the URL
+This protocol accepts the following options:
+ at table @option
+ at item truncate
+Truncate existing files on write, if set to 1. A value of 0 prevents
+truncating. Default value is 1.
+ at item blocksize
+Set I/O operation maximum block size, in bytes. Default value is
+ at code{INT_MAX}, which results in not limiting the requested block size.
+Setting this value reasonably low improves user termination request reaction
+time, which is valuable for files on slow medium.
+ at end table
 @section ftp
 FTP (File Transfer Protocol).

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