def zipSongs(songA, songB, outfile_name, battle_length = 8, random_order = False): """ alternates between a downbeat from songA and a downbeat from songB for battle_length number of bars from each, then play the remainder from songA. if random_order is True then songA will still always win but the playorder will be reversed approximately half the time. """ if random_order == True and random.sample([True, False], 1)[0]: firstSong = songB secondSong = songA flipped = True else: firstSong = songA secondSong = songB flipped = False onesA = firstSong.analysis.beats.that(fall_on_the(1)) onesB = secondSong.analysis.beats.that(fall_on_the(1)) lacedUp = audio.AudioData(shape= (int(1.2*len(firstSong.data)),2), numChannels=firstSong.numChannels, sampleRate=firstSong.sampleRate) overlap_time = 0 for bar_num in xrange(battle_length): lacedUp.append(audio.getpieces(firstSong, [onesA[bar_num]])) lacedUp.append(audio.getpieces(secondSong, [onesB[bar_num]])) overlap_time += onesA[bar_num].duration + onesB[bar_num].duration if flipped: lacedUp.append(audio.getpieces(firstSong, [onesA[battle_length]])) overlap_time += onesA[battle_length].duration lacedUp.append(audio.getpieces(songA,songA.analysis.bars[battle_length:])) lacedUp.encode(outfile_name) return overlap_time
def assemble_by(self, samesongdownweight=10000, method = 'random'):
#use max time signature as time signature
out_ts = max([v.audio.analysis.time_signature['value'] for v in self.videos])
print 'out_ts:', out_ts
all_beats = []
for beat in range(1,out_ts+1):
all_beats.append([v.audio.analysis.beats.that(fall_on_the(beat)) for v in self.videos])
# all_beats.append(dict(zip(range(len(videos)),[v.audio.analysis.beats.that(fall_on_the(beat)) for v in self.videos])))
print 'beat break down:'
for idx, beat in enumerate(all_beats):
print 'beat',idx+1,':',
print ' '.join([str(len(x)) for x in beat])
# this_beat = all_beats[1][0].pop(0)
on_the = 0
# self.collectvid += self.videos[0].video[this_beat]
# self.collectaudio += self.videos[0].audio[this_beat]
while remaining_beats(all_beats) > 0:
print 'remaining: ', remaining_beats(all_beats)
#grabs from a track that still has beats
try:
next_beat_from = random.sample([x for x in range(len(all_beats[on_the])) if len(all_beats[on_the][x])>0],1)[0]
except ValueError:
print 'not enough beats left, giving up...'
return
print 'fetching a', on_the, 'beat from ', next_beat_from
this_beat = all_beats[on_the][next_beat_from].pop(0)
self.collectvid += self.videos[next_beat_from].video[this_beat]
self.collectaudio.append(audio.Simultaneous([self.videos[next_beat_from].audio[this_beat]]))
#advance the beatticker
on_the += 1
if on_the >= out_ts:
on_the = 0