<s> import os <EOL> import sys <EOL> from radiotool . composer import Song <EOL> from radiotool . algorithms import constraints as rt_constraints <EOL> from radiotool . algorithms import retarget as rt_retarget <EOL> def retarget_to_duration ( song_filename , duration , start = True , end = True ) : <EOL> song = Song ( song_filename ) <EOL> duration = float ( duration ) <EOL> constraints = [ <EOL> rt_constraints . TimbrePitchConstraint ( <EOL> context = <NUM_LIT:0> , timbre_weight = <NUM_LIT:1.0> , chroma_weight = <NUM_LIT:1.0> ) , <EOL> rt_constraints . EnergyConstraint ( penalty = <NUM_LIT> ) , <EOL> rt_constraints . MinimumLoopConstraint ( <NUM_LIT:8> ) , <EOL> ] <EOL> extra = '<STR_LIT>' <EOL> if start : <EOL> constraints . append ( <EOL> rt_constraints . StartAtStartConstraint ( padding = <NUM_LIT:0> ) ) <EOL> extra += '<STR_LIT>' <EOL> if end : <EOL> constraints . append ( <EOL> rt_constraints . EndAtEndConstraint ( padding = <NUM_LIT:12> ) ) <EOL> extra += '<STR_LIT>' <EOL> comp , info = rt_retarget . retarget ( <EOL> [ song ] , duration , constraints = [ constraints ] , <EOL> fade_in_len = None , fade_out_len = None ) <EOL> if end == "<STR_LIT:end>" : <EOL> last_seg = sorted ( <EOL> comp . segments , <EOL> key = lambda seg : <EOL> seg . comp_location_in_seconds + seg . duration_in_seconds <EOL> ) [ - <NUM_LIT:1> ] <EOL> last_seg . duration_in_seconds = ( <EOL> song . duration_in_seconds - last_seg . start_in_seconds ) <EOL> result_fn = "<STR_LIT>" . format ( <EOL> os . path . splitext ( song_filename ) [ <NUM_LIT:0> ] , str ( duration ) , extra ) <EOL> comp . export ( filename = result_fn , <EOL> channels = song . channels , <EOL> filetype = '<STR_LIT>' ) <EOL> print info [ "<STR_LIT>" ] <EOL> path_cost = info [ "<STR_LIT>" ] <EOL> total_nonzero_cost = [ ] <EOL> total_nonzero_points = [ ] <EOL> for node in path_cost : <EOL> if float ( node . name ) > <NUM_LIT:0.0> : <EOL> total_nonzero_cost . append ( float ( node . name ) ) <EOL> total_nonzero_points . append ( float ( node . time ) ) <EOL> transitions = zip ( total_nonzero_points , total_nonzero_cost ) <EOL> print "<STR_LIT>" . format ( result_fn ) <EOL> print "<STR_LIT>" <EOL> for trans in transitions : <EOL> print "<STR_LIT>" . format ( round ( trans [ <NUM_LIT:0> ] , <NUM_LIT:1> ) , round ( trans [ <NUM_LIT:1> ] , <NUM_LIT:2> ) ) <EOL> if __name__ == '<STR_LIT:__main__>' : <EOL> song_fn = sys . argv [ <NUM_LIT:1> ] <EOL> duration = float ( sys . argv [ <NUM_LIT:2> ] ) <EOL> retarget_to_duration ( song_fn , duration ) </s>
