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OSError : MoviePy error : the file guitar.mp4 could not be found
9 septembre 2023, par dunnjm814I'm working on a video to audio converter with react and flask/python.
I have received a 500 with this error :


raise IOError(("MoviePy error: the file %s could not be found!\n"
OSError: MoviePy error: the file guitar.mp4 could not be found!
Please check that you entered the correct path.



EDIT : As stated in comments, moviepy VideoFileClip is looking for a path. Per suggestion, I am now attempting to write the incoming video file to a temp directory housed in the backend of the app. The updated stack trace shows the filepath printing, however when presented to VideoFileClip it is still unhappy.


The following snippet is the onSubmit for the video file upload :


const onSubmit = async (e) => {
 e.preventDefault()
 const data = new FormData()
 console.log('hopefully the mp4', videoData)
 data.append('mp3', videoData)
 console.log('hopefully a form object with mp4', data)
 const response = await fetch('/api/convert', {
 method: "POST",
 body: data
 })
 if (response.ok) {
 const converted = await response.json()
 setMp3(converted)
 console.log(mp3)
 } else {
 window.alert("something went wrong :(");
 }
 }



Here is a link to an image depicting the console output of my file upload
from within init.py


app = Flask(__name__)

app.config.from_object(Config)
app.register_blueprint(convert, url_prefix='/api/convert')

CORS(app)




from within converter.py


import os
from flask import Blueprint, jsonify, request
import imageio
from moviepy.editor import *


convert = Blueprint('convert', __name__)

@convert.route('', methods=['POST'])
def convert_mp4():
 if request.files['mp3'].filename:
 os.getcwd()
 filename = request.files['mp3'].filename
 print('hey its a file again', filename)
 safe_filename = secure_filename(filename)
 video_file = os.path.join("/temp/", safe_filename)
 print('hey its the file path', video_file)
 video_clip = VideoFileClip(video_file)
 print('hey its the VideoFileClip', video_clip)
 audio_clip = video_clip.audio
 audio_clip.write_audiofile(os.path.join("/temp/", f"{safe_filename}-converted.mp3"))

 video_clip.close()
 audio_clip.close()

 return jsonify(send_from_directory(os.path.join("/temp/", f"{safe_filename}-converted.mp3")))
 else:
 return {'error': 'something went wrong :('}





In the stack trace below you can see file printing the name of the video, my only other thought on why this may not be working was because it was getting lost in the post request, however the fact it is printing after my
if file:
check is leaving me pretty confused.

hey its a file again guitar.mp4
hey its the file path /temp/guitar.mp4
127.0.0.1 - - [22/Apr/2021 12:12:15] "POST /api/convert HTTP/1.1" 500 -
Traceback (most recent call last):
 File "/home/jasondunn/projects/audioconverter/.venv/lib/python3.8/site-packages/flask/app.py", line 2464, in __call__
 return self.wsgi_app(environ, start_response)
 File "/home/jasondunn/projects/audioconverter/.venv/lib/python3.8/site-packages/flask/app.py", line 2450, in wsgi_app
 response = self.handle_exception(e)
 File "/home/jasondunn/projects/audioconverter/.venv/lib/python3.8/site-packages/flask_cors/extension.py", line 161, in wrapped_function
 return cors_after_request(app.make_response(f(*args, **kwargs)))
 File "/home/jasondunn/projects/audioconverter/.venv/lib/python3.8/site-packages/flask/app.py", line 1867, in handle_exception
 reraise(exc_type, exc_value, tb)
 File "/home/jasondunn/projects/audioconverter/.venv/lib/python3.8/site-packages/flask/_compat.py", line 39, in reraise
 raise value
 File "/home/jasondunn/projects/audioconverter/.venv/lib/python3.8/site-packages/flask/app.py", line 2447, in wsgi_app
 response = self.full_dispatch_request()
 File "/home/jasondunn/projects/audioconverter/.venv/lib/python3.8/site-packages/flask/app.py", line 1952, in full_dispatch_request
 rv = self.handle_user_exception(e)
 File "/home/jasondunn/projects/audioconverter/.venv/lib/python3.8/site-packages/flask_cors/extension.py", line 161, in wrapped_function
 return cors_after_request(app.make_response(f(*args, **kwargs)))
 File "/home/jasondunn/projects/audioconverter/.venv/lib/python3.8/site-packages/flask/app.py", line 1821, in handle_user_exception
 reraise(exc_type, exc_value, tb)
 File "/home/jasondunn/projects/audioconverter/.venv/lib/python3.8/site-packages/flask/_compat.py", line 39, in reraise
 raise value
 File "/home/jasondunn/projects/audioconverter/.venv/lib/python3.8/site-packages/flask/app.py", line 1950, in full_dispatch_request
 rv = self.dispatch_request()
 File "/home/jasondunn/projects/audioconverter/.venv/lib/python3.8/site-packages/flask/app.py", line 1936, in dispatch_request
 return self.view_functions[rule.endpoint](**req.view_args)
 File "/home/jasondunn/projects/audioconverter/back/api/converter.py", line 20, in convert_mp4
 video_clip = VideoFileClip(video_file)
 File "/home/jasondunn/projects/audioconverter/.venv/lib/python3.8/site-packages/moviepy/video/io/VideoFileClip.py", line 88, in __init__
 self.reader = FFMPEG_VideoReader(filename, pix_fmt=pix_fmt,
 File "/home/jasondunn/projects/audioconverter/.venv/lib/python3.8/site-packages/moviepy/video/io/ffmpeg_reader.py", line 35, in __init__
 infos = ffmpeg_parse_infos(filename, print_infos, check_duration,
 File "/home/jasondunn/projects/audioconverter/.venv/lib/python3.8/site-packages/moviepy/video/io/ffmpeg_reader.py", line 270, in ffmpeg_parse_infos
 raise IOError(("MoviePy error: the file %s could not be found!\n"
OSError: MoviePy error: the file /temp/guitar.mp4 could not be found!
Please check that you entered the correct path.



thanks in advance for taking a look/future advice. First official post on Stack Overflow :)


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How to pipe ffmpeg output to ImageMagick's convert tool ?
30 décembre 2020, par Donny V.After a lot of searching I have come up with this to pipe a frame from ffmpeg to imagemagick's convert tool.


ffmpeg -y -ss 00:02:01 -i ...\pano.mp4 -frames:v 1 -f png - | convert -sharpen 0x1 ...\pano_00_02_01.png



I keep getting this error message.


[NULL @ 000002e6cd1e00c0] Requested output format 'png' is not a suitable output format
pipe:: Invalid argument



I have checked for png support using
ffmpeg -format
and its listed aspng_pipe
.

I'm using ffmpeg version 4.3.1-2020-11-19-full_build
https://www.gyan.dev/ffmpeg/builds/