Adding readme information for ffmpeg

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk/utils@45294 20353a03-c40f-0410-a6d1-a30d3c3de9de

cloudooo/handler/ffmpeg/README.txt

+FFMPEG Handler http://svn.erp5.org/erp5/trunk/utils/cloudooo.handler.ffmpeg/
+
+There are three binaries available:
+
+ - ffmpeg
+ - ffprobe
+ - ffserver
+
+First is used to convert audio and video file to availables codecs into cloudooo
+at the moment( for seeing then use -codecs option).
+Second one is used for seeing file information, like metadata in this.
+Third is only used in case to overwrite ffmpeg server.
+
+Runnig any of those binaries with -h or --help option will more command line
+help and options.
+
+Usage Example
+-------------
+
+Converting ogv file into mpeg file format:
+
+ $ ffmpeg -i test.ogv test.mpeg
+
+Getting file information:
+
+ $ ffprobe test.ogv
+
+Inserting metadata into file:
+ $ ffmpeg -i test.ogv -metadata string=string -metadata string=string test.mepg
+
+Converting its necessary for insert metadata, but changing format is not.