[FFmpeg-devel] [PATCH] ffmpeg: document -d option

[Stefano Sabatini <stefasab@gmail.com>]

Option was added in commit 39aafa5ee90e10382e.

Fix trac issue: http://trac.ffmpeg.org/ticket/1698
---
 doc/ffmpeg.texi      | 12 ++++++++++++
 fftools/ffmpeg_opt.c |  3 +++
 2 files changed, 15 insertions(+)

diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
index 164419cad3..bf738da0c1 100644
--- a/doc/ffmpeg.texi
+++ b/doc/ffmpeg.texi
@@ -845,6 +845,18 @@ ffmpeg -dump_attachment:t "" -i INPUT
 Technical note -- attachments are implemented as codec extradata, so this
 option can actually be used to extract extradata from any stream, not just
 attachments.
+
+@item -d (@emph{global})
+
+Run ffmpeg in daemon mode. This options should be only specified as fist option,
+or it will be ignored, for example as:
+@example
+ffmpeg -d ...
+@end example
+
+This option disables log and detaches the @code{ffmpeg} process from the
+terminal.
+
 @end table
 
 @section Video Options
diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c
index 22c88287df..e3c93d1980 100644
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@@ -186,6 +186,7 @@ static int ignore_unknown_streams = 0;
 static int copy_unknown_streams = 0;
 static int recast_media = 0;
 static int find_stream_info = 1;
+static int daemon = 0;
 
 static void uninit_options(OptionsContext *o)
 {
@@ -3713,6 +3714,8 @@ const OptionDef options[] = {
     { "bits_per_raw_sample", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT,
         { .off = OFFSET(bits_per_raw_sample) },
         "set the number of bits per raw sample", "number" },
+    { "d",             OPT_BOOL | OPT_EXPERT,                       { &daemon },
+        "run in daemon mode, can only be specified as first option" },
 
     /* video options */
     { "vframes",      OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_frames },
-- 
2.25.1

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