我正在开发烧瓶中的Web应用程序。这是一个比赛重点网络应用。它以全长比赛视频作为输入，并提供其修剪后的版本作为比赛重点。我可以轻松上传完整长度的视频并将其存储在系统中，但是无法将修剪后的视频保存在系统中。我的代码如下。如果有任何解决方案，请告诉。提前致谢。
app.py
import os
from flask import Flask, flash, request, redirect, url_for, send_from_directory
from werkzeug.utils import secure_filename
from werkzeug import SharedDataMiddleware
from moviepy.editor import VideoFileClip, concatenate
import numpy as np
UPLOAD_FOLDER = 'E:/projects/match highlight/uploads'
SAVE_FOLDER = 'E:/projects/match highlight/saved'
ALLOWED_EXTENSIONS = set(['txt', 'pdf', 'png', 'jpg', 'jpeg', 'gif', 'mp4'])
app = Flask(__name__)
app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
app.config['SAVE_FOLDER'] = SAVE_FOLDER
app.add_url_rule('/uploads/<filename>', 'uploaded_file',
build_only=True)
app.wsgi_app = SharedDataMiddleware(app.wsgi_app, {
'/uploads': app.config['UPLOAD_FOLDER']
})
def allowed_file(filename):
return '.' in filename and \
filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
@app.route('/', methods=['GET', 'POST'])
def upload_file():
if request.method == 'POST':
# check if the post request has the file part
if 'file' not in request.files:
flash('No file part')
return redirect(request.url)
file = request.files['file']
# if user does not select file, browser also
# submit an empty part without filename
if file.filename == '':
flash('No selected file')
return redirect(request.url)
if file and allowed_file(file.filename):
filename = secure_filename(file.filename)
file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
clip = VideoFileClip("E:/projects/match highlight/uploads/"+filename)
cut = lambda i: clip.audio.subclip(i,i+1).to_soundarray(fps=22000)
volume = lambda array: np.sqrt(((1.0*array)**2).mean())
volumes = [volume(cut(i)) for i in range(0,int(clip.duration-1))]
averaged_volumes = np.array([sum(volumes[i:i+10])/10 for i in range(len(volumes)-10)])
increases = np.diff(averaged_volumes)[:-1]>=0
decreases = np.diff(averaged_volumes)[1:]<=0
peaks_times = (increases * decreases).nonzero()[0]
peaks_vols = averaged_volumes[peaks_times]
peaks_times = peaks_times[peaks_vols>np.percentile(peaks_vols,90)]
final_times=[peaks_times[0]]
for t in peaks_times:
if (t - final_times[-1]) < 60:
if averaged_volumes[t] > averaged_volumes[final_times[-1]]:
final_times[-1] = t
else:
final_times.append(t)
final = concatenate([clip.subclip(max(t-5,0),min(t+5, clip.duration))for t in final_times])
final_video=final.to_videofile('soccer_cuts.mp4')
file.save(os.path.join(app.config['SAVE_FOLDER'], final_video))
return redirect(url_for('upload_file'))
return '''
<!doctype html>
<title>Upload new File</title>
<h1>Upload new File</h1>
<form method=post enctype=multipart/form-data>
<input type=file name=file>
<input type=submit value=Upload>
</form>
'''
@app.route('/uploads/<filename>')
def uploaded_file(filename):
return send_from_directory(app.config['UPLOAD_FOLDER'],
filename)
if __name__ == '__main__':
app.run(debug=True)