question: public VideoStream ( String streamStr ) { String [ ] args = streamStr . split ( "&" ) ; Map < String , String > argMap = new HashMap < String , String > ( ) ; for ( String arg : args ) { String [ ] argsValues = arg . split ( "=" ) ; if ( argsValues != null ) { if ( argsValues . length >= 2 ) { argMap . put ( argsValues [ 0 ] , argsValues [ 1 ] ) ; } } } mUrl = argMap . get ( "url" ) ; }
target:  Construct a video stream from one of the strings obtained from the "url_encoded_fmt_stream_map" parameter if the video_info