X-Git-Url: http://git.ieval.ro/?p=fdkaac.git;a=blobdiff_plain;f=README;h=007af3adfbfd2ee88a10618e3576bc073f86ffd8;hp=a152cde2616f9d5b1911df73f4996753ce30fab8;hb=2642af896e0a9f7b3bca63b02833e69b3bfcd82a;hpb=e90146633530de55583e624197af2784e1ff86ca

diff --git a/README b/README
index a152cde..007af3a 100644
--- a/README
+++ b/README
@@ -31,3 +31,22 @@ look like the following:
 +- src
 
 MSVC solution for Visual Studio 2010 is under MSVC directory.
+
+Tagging Options
+---------------
+Generic tagging options like --tag, --tag-from-file, --long-tag allows you
+to set arbitrary tags.
+Available tags and their fcc (four char code) for --tag and --tag-from-file
+can be found at http://code.google.com/p/mp4v2/wiki/iTunesMetadata
+
+For tags such as Artist where first char of fcc is copyright sign,
+you can skip first char and just say like --tag="ART:Foo Bar" or
+--tag-from-file=lyr:/path/to/your/lyrics.txt
+
+Currently, --tag-from-file just stores file contents into m4a without any
+character encoding / line terminater conversion.
+Therefore, only use UTF-8 (without BOM) when setting text tags by this option.
+
+On the other hand, --tag / --long-tag (and other command line arguments) are
+converted from locale character encoding to UTF-8 on Posix environment.
+On Windows, command line arguments are always treated as Unicode.