update -t option documentation

Patch by Godwin Stewart

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@10146 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

diff --git a/doc/ffmpeg-doc.texi b/doc/ffmpeg-doc.texi
index fafe3cb4cf8b0fecefca73c1ef0bf98efd1aa16c..7f65afa61fa935ef50b3b98129cabcd67d3a4636 100644 (file)
--- a/doc/ffmpeg-doc.texi
+++ b/doc/ffmpeg-doc.texi
@@ -212,7 +212,8 @@ input filename
 Overwrite output files.
 
 @item -t duration
-Set the recording time in seconds.
+Restrict the transcoded/captured video sequence
+to the duration specified in seconds.
 @code{hh:mm:ss[.xxx]} syntax is also supported.
 
 @item -fs limit_size

diff --git a/ffmpeg.c b/ffmpeg.c
index ddef6674e4f72ee8409ef29a2fb48c953368d88e..b947e25340d84f9bf4f972494cae2f211ca47bd2 100644 (file)
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -3601,7 +3601,7 @@ const OptionDef options[] = {
     { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
     { "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream[:syncfile:syncstream]" },
     { "map_meta_data", HAS_ARG | OPT_EXPERT, {(void*)opt_map_meta_data}, "set meta data information of outfile from infile", "outfile:infile" },
-    { "t", HAS_ARG, {(void*)opt_recording_time}, "set the recording time", "duration" },
+    { "t", HAS_ARG, {(void*)opt_recording_time}, "record or transcode \"duration\" seconds of audio/video", "duration" },
     { "fs", HAS_ARG | OPT_INT64, {(void*)&limit_filesize}, "set the limit file size in bytes", "limit_size" }, //
     { "ss", HAS_ARG, {(void*)opt_start_time}, "set the start time offset", "time_off" },
     { "itsoffset", HAS_ARG, {(void*)opt_input_ts_offset}, "set the input ts offset", "time_off" },