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Add temp dir to args #128

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Add temp dir to args #128

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ccafd0d
Add temp dir to args
hassanamin994 Aug 8, 2019
290b3b6
generate random names of hardcoded files to enable processing multipl…
hassanamin994 Aug 8, 2019
5bbd857
make max audio volume fallback to 1
hassanamin994 Aug 8, 2019
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35 changes: 25 additions & 10 deletions jumpcutter.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,8 @@
import os
import argparse
from pytube import YouTube
import random
import string

def downloadFile(url):
name = YouTube(url).streams.first().download()
Expand Down Expand Up @@ -52,6 +54,11 @@ def deletePath(s): # Dangerous! Watch out!
print ("Deletion of the directory %s failed" % s)
print(OSError)

def randomString(stringLength=10):
"""Generate a random string of fixed length """
letters = string.ascii_lowercase
return ''.join(random.choice(letters) for i in range(stringLength))

parser = argparse.ArgumentParser(description='Modifies a video file to play at different speeds when there is sound vs. silence.')
parser.add_argument('--input_file', type=str, help='the video file you want modified')
parser.add_argument('--url', type=str, help='A youtube url to download and process')
Expand All @@ -63,6 +70,7 @@ def deletePath(s): # Dangerous! Watch out!
parser.add_argument('--sample_rate', type=float, default=44100, help="sample rate of the input and output videos")
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.")
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.")
parser.add_argument('--tmp_dir', type=str, help='The tmp direcotry')

args = parser.parse_args()

Expand All @@ -87,29 +95,36 @@ def deletePath(s): # Dangerous! Watch out!
else:
OUTPUT_FILE = inputToOutputFilename(INPUT_FILE)

TEMP_FOLDER = "TEMP"
TEMP_FOLDER = args.tmp_dir or "TEMP"

AUDIO_FILE_NAME = 'audio' + randomString(10) + '.wav'
NEW_AUDIO_FILE_NAME = 'newAudio' + randomString(10) + '.wav'
PARAMS_FILE_NAME = 'params' + randomString(10) + '.txt'
TEMP_START_FILE_NAME = 'tempStart' + randomString(10) + '.wav'
TEMP_END_FILE_NAME = 'tempEnd' + randomString(10) + '.wav'

AUDIO_FADE_ENVELOPE_SIZE = 400 # smooth out transitiion's audio by quickly fading in/out (arbitrary magic number whatever)

createPath(TEMP_FOLDER)

command = "ffmpeg -i "+INPUT_FILE+" -qscale:v "+str(FRAME_QUALITY)+" "+TEMP_FOLDER+"/frame%06d.jpg -hide_banner"
subprocess.call(command, shell=True)

command = "ffmpeg -i "+INPUT_FILE+" -ab 160k -ac 2 -ar "+str(SAMPLE_RATE)+" -vn "+TEMP_FOLDER+"/audio.wav"
command = "ffmpeg -i "+INPUT_FILE+" -ab 160k -ac 2 -ar "+str(SAMPLE_RATE)+" -vn "+TEMP_FOLDER+"/"+AUDIO_FILE_NAME

subprocess.call(command, shell=True)

command = "ffmpeg -i "+TEMP_FOLDER+"/input.mp4 2>&1"
f = open(TEMP_FOLDER+"/params.txt", "w")
f = open(TEMP_FOLDER+"/"+PARAMS_FILE_NAME, "w")
subprocess.call(command, shell=True, stdout=f)



sampleRate, audioData = wavfile.read(TEMP_FOLDER+"/audio.wav")
sampleRate, audioData = wavfile.read(TEMP_FOLDER+"/"+AUDIO_FILE_NAME)
audioSampleCount = audioData.shape[0]
maxAudioVolume = getMaxVolume(audioData)
maxAudioVolume = getMaxVolume(audioData) or 1

f = open(TEMP_FOLDER+"/params.txt", 'r+')
f = open(TEMP_FOLDER+"/"+PARAMS_FILE_NAME, 'r+')
pre_params = f.read()
f.close()
params = pre_params.split('\n')
Expand Down Expand Up @@ -153,8 +168,8 @@ def deletePath(s): # Dangerous! Watch out!
for chunk in chunks:
audioChunk = audioData[int(chunk[0]*samplesPerFrame):int(chunk[1]*samplesPerFrame)]

sFile = TEMP_FOLDER+"/tempStart.wav"
eFile = TEMP_FOLDER+"/tempEnd.wav"
sFile = TEMP_FOLDER+"/"+TEMP_START_FILE_NAME
eFile = TEMP_FOLDER+"/"+TEMP_END_FILE_NAME
wavfile.write(sFile,SAMPLE_RATE,audioChunk)
with WavReader(sFile) as reader:
with WavWriter(eFile, reader.channels, reader.samplerate) as writer:
Expand Down Expand Up @@ -189,15 +204,15 @@ def deletePath(s): # Dangerous! Watch out!

outputPointer = endPointer

wavfile.write(TEMP_FOLDER+"/audioNew.wav",SAMPLE_RATE,outputAudioData)
wavfile.write(TEMP_FOLDER+"/"+NEW_AUDIO_FILE_NAME,SAMPLE_RATE,outputAudioData)

'''
outputFrame = math.ceil(outputPointer/samplesPerFrame)
for endGap in range(outputFrame,audioFrameCount):
copyFrame(int(audioSampleCount/samplesPerFrame)-1,endGap)
'''

command = "ffmpeg -framerate "+str(frameRate)+" -i "+TEMP_FOLDER+"/newFrame%06d.jpg -i "+TEMP_FOLDER+"/audioNew.wav -strict -2 "+OUTPUT_FILE
command = "ffmpeg -framerate "+str(frameRate)+" -i "+TEMP_FOLDER+"/newFrame%06d.jpg -i "+TEMP_FOLDER+"/"+NEW_AUDIO_FILE_NAME+" -strict -2 "+OUTPUT_FILE
subprocess.call(command, shell=True)

deletePath(TEMP_FOLDER)
Expand Down