enable setting the year and track number using AVOption

Patch by Takis
Original thread:
Date: Sep 6, 2006 5:43 PM
Subject: [Ffmpeg-devel] [PATCH] Enhance genre, year and track tag 
support


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@6196 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

doc/ffmpeg-doc.texi

@@ -190,6 +190,12 @@ Set the copyright.
 @item -comment string
 Set the comment.
 
+@item -track number
+Set the track.
+
+@item -year number
+Set the year.
+
 @item -target type
 Specify target file type ("vcd", "svcd", "dvd", "dv", "pal-vcd",
 "ntsc-svcd", ... ). All the format options (bitrate, codecs,

libavformat/utils.c

@@ -469,6 +469,8 @@ static const AVOption options[]={
 {"fflags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, D, "fflags"},
 {"ignidx", "ignore index", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_IGNIDX, INT_MIN, INT_MAX, D, "fflags"},
 {"genpts", "generate pts", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_GENPTS, INT_MIN, INT_MAX, D, "fflags"},
+{"track", " set the track number", OFFSET(track), FF_OPT_TYPE_INT, DEFAULT, 1, INT_MAX, E},
+{"year", "set the year", OFFSET(year), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, E},
 {NULL},
 };