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Thursday, May 17, 2007

Commons Digester Variable

The variable in xml data can be converted with Digester with the easy following codes.
Digester digester = DigesterLoader.createDigester(getURL(ruleFile));
Map vars = new HashMap();
MultiVariableExpander expander = new MultiVariableExpander();
expander.addSource("$", vars);
Substitutor substitutor = new VariableSubstitutor(expander);

Tuesday, May 15, 2007

Commons Lang toString()

Jakarta Commons Lang support the reflection for toString() which need to synchronize with the changes made for the object model.

public String toString(){
return ReflectionToStringBuilder.toString(this);

For the customization of the output,
public String toString(){
return ReflectionToStringBuilder.toString(this,ToStringStyle.MULTI_LINE_STYLE)

Sunday, May 13, 2007

Encoding to 3gp file for mobile phones

If h/s support AAC.
#ffmpeg -i infile.mpeg -vcodec mpeg4 -r 15 -b 128k -s qcif -acodec aac -ar 8000
-ac 1 -ab 13 -f 3gp -y output.3gp

If not
ffmpeg -i infile.mpeg -vcodec mpeg4 -r 15 -b 128k -s qcif -acodec amr_nb -ar 8000
-ac 1 -ab 13 -f 3gp -y output.3gp

For video editing on Linux, LiVES would be very nice.