carykh's jumpcutter is cool
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211
bin/jump
Executable file
211
bin/jump
Executable file
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#!/usr/bin/env python3
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# carykh's jumpcuttter
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# i think the license is gpl something im not sure lol
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from contextlib import closing
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from PIL import Image
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import subprocess
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from audiotsm import phasevocoder
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from audiotsm.io.wav import WavReader, WavWriter
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from scipy.io import wavfile
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import numpy as np
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import re
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import math
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from shutil import copyfile, rmtree
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import os
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import argparse
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from pytube import YouTube
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def downloadFile(url):
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name = YouTube(url).streams.first().download()
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newname = name.replace(' ','_')
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os.rename(name,newname)
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return newname
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def getMaxVolume(s):
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maxv = float(np.max(s))
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minv = float(np.min(s))
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return max(maxv,-minv)
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def copyFrame(inputFrame,outputFrame):
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src = TEMP_FOLDER+"/frame{:06d}".format(inputFrame+1)+".jpg"
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dst = TEMP_FOLDER+"/newFrame{:06d}".format(outputFrame+1)+".jpg"
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if not os.path.isfile(src):
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return False
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copyfile(src, dst)
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if outputFrame%20 == 19:
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print(str(outputFrame+1)+" time-altered frames saved.")
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return True
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def inputToOutputFilename(filename):
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dotIndex = filename.rfind(".")
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return filename[:dotIndex]+"_ALTERED"+filename[dotIndex:]
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def createPath(s):
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#assert (not os.path.exists(s)), "The filepath "+s+" already exists. Don't want to overwrite it. Aborting."
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try:
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os.mkdir(s)
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except OSError:
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assert False, "Creation of the directory %s failed. (The TEMP folder may already exist. Delete or rename it, and try again.)"
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def deletePath(s): # Dangerous! Watch out!
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try:
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rmtree(s,ignore_errors=False)
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except OSError:
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print ("Deletion of the directory %s failed" % s)
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print(OSError)
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parser = argparse.ArgumentParser(description='Modifies a video file to play at different speeds when there is sound vs. silence.')
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parser.add_argument('-i', type=str, help='the video file you want modified')
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parser.add_argument('--url', type=str, help='A youtube url to download and process')
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parser.add_argument('-o', type=str, default="", help="the output file. (optional. if not included, it'll just modify the input file name)")
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parser.add_argument('--silent_threshold', type=float, default=0.03, help="the volume amount that frames' audio needs to surpass to be consider \"sounded\". It ranges from 0 (silence) to 1 (max volume)")
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parser.add_argument('--sounded_speed', type=float, default=2.00, help="the speed that sounded (spoken) frames should be played at. Typically 1.")
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parser.add_argument('--silent_speed', type=float, default=7.50, help="the speed that silent frames should be played at. 999999 for jumpcutting.")
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parser.add_argument('--frame_margin', type=float, default=2, help="some silent frames adjacent to sounded frames are included to provide context. How many frames on either the side of speech should be included? That's this variable.")
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parser.add_argument('--sample_rate', type=float, default=44100, help="sample rate of the input and output videos")
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parser.add_argument('--frame_rate', type=float, default=30, help="frame rate of the input and output videos. optional... I try to find it out myself, but it doesn't always work.")
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parser.add_argument('--frame_quality', type=int, default=3, help="quality of frames to be extracted from input video. 1 is highest, 31 is lowest, 3 is the default.")
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args = parser.parse_args()
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frameRate = args.frame_rate
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SAMPLE_RATE = args.sample_rate
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SILENT_THRESHOLD = args.silent_threshold
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FRAME_SPREADAGE = args.frame_margin
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NEW_SPEED = [args.silent_speed, args.sounded_speed]
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if args.url != None:
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INPUT_FILE = downloadFile(args.url)
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else:
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INPUT_FILE = args.i
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URL = args.url
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FRAME_QUALITY = args.frame_quality
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assert INPUT_FILE != None , "why u put no input file, that dum"
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if len(args.o) >= 1:
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OUTPUT_FILE = args.o
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else:
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OUTPUT_FILE = inputToOutputFilename(INPUT_FILE)
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TEMP_FOLDER = "TEMP"
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AUDIO_FADE_ENVELOPE_SIZE = 400 # smooth out transitiion's audio by quickly fading in/out (arbitrary magic number whatever)
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createPath(TEMP_FOLDER)
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command = "ffmpeg -i "+INPUT_FILE+" -qscale:v "+str(FRAME_QUALITY)+" "+TEMP_FOLDER+"/frame%06d.jpg -hide_banner"
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subprocess.call(command, shell=True)
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command = "ffmpeg -i "+INPUT_FILE+" -ab 160k -ac 2 -ar "+str(SAMPLE_RATE)+" -vn "+TEMP_FOLDER+"/audio.wav"
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subprocess.call(command, shell=True)
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command = "ffmpeg -i "+TEMP_FOLDER+"/input.mp4 2>&1"
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f = open(TEMP_FOLDER+"/params.txt", "w")
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subprocess.call(command, shell=True, stdout=f)
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sampleRate, audioData = wavfile.read(TEMP_FOLDER+"/audio.wav")
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audioSampleCount = audioData.shape[0]
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maxAudioVolume = getMaxVolume(audioData)
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f = open(TEMP_FOLDER+"/params.txt", 'r+')
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pre_params = f.read()
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f.close()
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params = pre_params.split('\n')
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for line in params:
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m = re.search('Stream #.*Video.* ([0-9]*) fps',line)
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if m is not None:
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frameRate = float(m.group(1))
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samplesPerFrame = sampleRate/frameRate
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audioFrameCount = int(math.ceil(audioSampleCount/samplesPerFrame))
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hasLoudAudio = np.zeros((audioFrameCount))
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for i in range(audioFrameCount):
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start = int(i*samplesPerFrame)
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end = min(int((i+1)*samplesPerFrame),audioSampleCount)
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audiochunks = audioData[start:end]
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maxchunksVolume = float(getMaxVolume(audiochunks))/maxAudioVolume
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if maxchunksVolume >= SILENT_THRESHOLD:
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hasLoudAudio[i] = 1
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chunks = [[0,0,0]]
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shouldIncludeFrame = np.zeros((audioFrameCount))
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for i in range(audioFrameCount):
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start = int(max(0,i-FRAME_SPREADAGE))
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end = int(min(audioFrameCount,i+1+FRAME_SPREADAGE))
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shouldIncludeFrame[i] = np.max(hasLoudAudio[start:end])
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if (i >= 1 and shouldIncludeFrame[i] != shouldIncludeFrame[i-1]): # Did we flip?
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chunks.append([chunks[-1][1],i,shouldIncludeFrame[i-1]])
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chunks.append([chunks[-1][1],audioFrameCount,shouldIncludeFrame[i-1]])
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chunks = chunks[1:]
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outputAudioData = np.zeros((0,audioData.shape[1]))
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outputPointer = 0
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lastExistingFrame = None
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for chunk in chunks:
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audioChunk = audioData[int(chunk[0]*samplesPerFrame):int(chunk[1]*samplesPerFrame)]
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sFile = TEMP_FOLDER+"/tempStart.wav"
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eFile = TEMP_FOLDER+"/tempEnd.wav"
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wavfile.write(sFile,SAMPLE_RATE,audioChunk)
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with WavReader(sFile) as reader:
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with WavWriter(eFile, reader.channels, reader.samplerate) as writer:
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tsm = phasevocoder(reader.channels, speed=NEW_SPEED[int(chunk[2])])
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tsm.run(reader, writer)
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_, alteredAudioData = wavfile.read(eFile)
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leng = alteredAudioData.shape[0]
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endPointer = outputPointer+leng
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outputAudioData = np.concatenate((outputAudioData,alteredAudioData/maxAudioVolume))
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#outputAudioData[outputPointer:endPointer] = alteredAudioData/maxAudioVolume
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# smooth out transitiion's audio by quickly fading in/out
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if leng < AUDIO_FADE_ENVELOPE_SIZE:
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outputAudioData[outputPointer:endPointer] = 0 # audio is less than 0.01 sec, let's just remove it.
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else:
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premask = np.arange(AUDIO_FADE_ENVELOPE_SIZE)/AUDIO_FADE_ENVELOPE_SIZE
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mask = np.repeat(premask[:, np.newaxis],2,axis=1) # make the fade-envelope mask stereo
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outputAudioData[outputPointer:outputPointer+AUDIO_FADE_ENVELOPE_SIZE] *= mask
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outputAudioData[endPointer-AUDIO_FADE_ENVELOPE_SIZE:endPointer] *= 1-mask
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startOutputFrame = int(math.ceil(outputPointer/samplesPerFrame))
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endOutputFrame = int(math.ceil(endPointer/samplesPerFrame))
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for outputFrame in range(startOutputFrame, endOutputFrame):
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inputFrame = int(chunk[0]+NEW_SPEED[int(chunk[2])]*(outputFrame-startOutputFrame))
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didItWork = copyFrame(inputFrame,outputFrame)
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if didItWork:
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lastExistingFrame = inputFrame
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else:
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copyFrame(lastExistingFrame,outputFrame)
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outputPointer = endPointer
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wavfile.write(TEMP_FOLDER+"/audioNew.wav",SAMPLE_RATE,outputAudioData)
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'''
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outputFrame = math.ceil(outputPointer/samplesPerFrame)
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for endGap in range(outputFrame,audioFrameCount):
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copyFrame(int(audioSampleCount/samplesPerFrame)-1,endGap)
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'''
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command = "ffmpeg -framerate "+str(frameRate)+" -i "+TEMP_FOLDER+"/newFrame%06d.jpg -i "+TEMP_FOLDER+"/audioNew.wav -strict -2 "+OUTPUT_FILE
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subprocess.call(command, shell=True)
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deletePath(TEMP_FOLDER)
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