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• Transcode video using celery and ffmpeg in django

  28 octobre 2015, par Robin

  I would like to transcode user uploaded videos using celery. I think first I should upload the video, and spawn a celery task for transcoding.

  Maybe something like this in the tasks.py :

  subprocess.call('ffmpeg -i path/.../original path/.../output')

  Just completed First steps with celery, so confused how to do so in the views.py and tasks.py. Also is it a good solution ? I would really appreciate your help and advice. Thank you.

  models.py :

  class Video(models.Model):
  
      user = models.ForeignKey(User)
  
      title = models.CharField(max_length=100)
  
      original = models.FileField(upload_to=get_upload_file_name)
  
      mp4_480 = models.FileField(upload_to=get_upload_file_name, blank=True, null=True)
  
      mp4_720 = models.FileField(upload_to=get_upload_file_name, blank=True, null=True)
  
      privacy = models.CharField(max_length=1,choices=PRIVACY, default='F')
  
      pub_date = models.DateTimeField(auto_now_add=True, auto_now=False)

  my incomplete views.py :

  @login_required
  
  def upload_video(request):
  
      if request.method == 'POST':
  
          form = VideoForm(request.POST, request.FILES)
  
          if form.is_valid():
  
              if form.cleaned_data:
  
                  user = request.user
  
                  #
  
                  #
  
                  # No IDEA WHAT TO DO NEXT
  
                  #
  
                  #
  
                  return HttpResponseRedirect('/')
  
  
  
      else:
  
          form = VideoForm()
  
          return render(request, 'upload_video.html', {
  
              'form':form
  
              })

• Paperclip with heroku and paperclip, migration fails

  2 décembre 2013, par jdartland

  I have a created ruby on rails application and I'm using paperclip to handle my file uploads.
  Paperclip works just fine on my local machine. But my video upload stops working when I deploy to Heroku. Does anyone know whats going wrong. I also get an error when I try to upload a video which says that the video filename does not exist. The photo upload works but not the Video, I'm using paperclip iwth nested attributes and ffmpeg.

  Upload Error log :

  Paperclip::Error (Asset model missing required attr_accessor for 'video_file_name')
  
  2013-12-02T14:38:16.867747+00:00 app[web.1]: Paperclip::Error (Asset model missing required attr_accessor for 'video_file_name'):
  
  2013-12-02T14:38:16.867747+00:00 app[web.1]:   app/controllers/projects_controller.rb:60:in `block in update'
  
  2013-12-02T14:38:16.867747+00:00 app[web.1]:   app/controllers/projects_controller.rb:59:in `update'

  Here is my migration error :

  Migrating to AddAttachmentPhotoToAssets (20131021134721)
  
  ==  AddAttachmentPhotoToAssets: migrating =====================================
  
  -- change_table(:assets)
  
     -> 0.0273s
  
  ==  AddAttachmentPhotoToAssets: migrated (0.0276s) ============================
  
  
  
  Migrating to AddProjectIdToAssets (20131022082744)
  
  -- add_column(:assets, :project_id, :integer)
  
  PG::DuplicateColumn: ERROR:  column "project_id" of relation "assets" already exists
  
  : ALTER TABLE "assets" ADD COLUMN "project_id" integer
  
  -- add_column(:assets, :project_id, :integer)
  
  PG::DuplicateColumn: ERROR:  column "project_id" of relation "assets" already exists
  
  : ALTER TABLE "assets" ADD COLUMN "project_id" integer
  
  rake aborted!
  
  PG::DuplicateColumn: ERROR:  column "project_id" of relation "assets" already exists
  
  : ALTER TABLE "assets" ADD COLUMN "project_id" integer
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/connection_adapters/postgresql/database_statements.rb:128:in `exec'
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/connection_adapters/postgresql/database_statements.rb:128:in `block in execute'
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/connection_adapters/abstract_adapter.rb:425:in `block in log'
  
  /app/vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/connection_adapters/abstract_adapter.rb:420:in `log'
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/connection_adapters/postgresql/database_statements.rb:127:in `execute'
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/connection_adapters/abstract/schema_statements.rb:360:in `add_column'
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/connection_adapters/postgresql/schema_statements.rb:379:in `add_column'
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/migration.rb:625:in `block in method_missing'
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/migration.rb:597:in `block in say_with_time'
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/migration.rb:597:in `say_with_time'
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/migration.rb:617:in `method_missing'
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/migration.rb:383:in `method_missing'
  
  /app/db/migrate/20131022082744_add_project_id_to_assets.rb:2:in `'
  
  /app/db/migrate/20131022082744_add_project_id_to_assets.rb:1:in `<top>&#39;
  
  /app/vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `require&#39;
  
  /app/vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `block in require&#39;
  
  /app/vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:213:in `load_dependency&#39;
  
  /app/vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `require&#39;
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/migration.rb:718:in `load_migration&#39;
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/migration.rb:714:in `migration&#39;
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/migration.rb:708:in `disable_ddl_transaction&#39;
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/migration.rb:1012:in `use_transaction?&#39;
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/migration.rb:922:in `rescue in block in migrate&#39;
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/migration.rb:919:in `block in migrate&#39;
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/migration.rb:916:in `each&#39;
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/migration.rb:916:in `migrate&#39;
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/migration.rb:764:in `up&#39;
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/migration.rb:742:in `migrate&#39;
  
  /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/railties/databases.rake:42:in `block (2 levels) in <top>&#39;
  
  Tasks: TOP => db:migrate
  
  (See full trace by running task with --trace)
  
  </top></top>

  Here is my table :

   create_table "assets", force: true do |t|
  
      t.datetime "created_at"
  
      t.datetime "updated_at"
  
      t.string   "photo_file_name"
  
      t.string   "photo_content_type"
  
      t.integer  "photo_file_size"
  
      t.datetime "photo_updated_at"
  
      t.integer  "project_id"
  
      t.string   "video_file_name"
  
      t.string   "video_content_type"
  
      t.integer  "video_file_size"
  
      t.datetime "video_updated_at"
  
    end
  
  add_index "projects", ["permalink"], name: "index_projects_on_permalink", using: :btree
  
  
  
    create_table "settings", force: true do |t|
  
      t.string   "title"
  
      t.text     "description"
  
      t.text     "paragraph"
  
      t.datetime "created_at"
  
      t.datetime "updated_at"
  
      t.string   "photo_file_name"
  
      t.string   "photo_content_type"
  
      t.integer  "photo_file_size"
  
      t.datetime "photo_updated_at"
  
      t.string   "video_file_name"
  
      t.string   "video_content_type"
  
      t.integer  "video_file_size"
  
      t.datetime "video_updated_at"
  
    end

  Would gladly need some help ! :)

• moviepy VideoFileClip IndexError : list index out of range, OSError : MoviePy error : failed to read the duration of file

  21 mai 2022, par Mohamed Medhat

  We are recording videos from the browser with the following encoding
'video/webm ; codecs="vp8, opus"', then we upload these videos to an AWS S3 bucket.
Our ML model works on these videos, and one of the models needs to extarct the audio and process it.
Here is a code snapit for extracting the audio

  


  import speech_recognition as sr
import moviepy.editor as me
from denoise2 import denoise
from sentence_transformers import SentenceTransformer
from sklearn.metrics.pairwise import cosine_similarity
import math

model_name = 'bert-base-nli-mean-tokens'
model = SentenceTransformer(model_name)


class recomm:
    y = 0.0

    def __init__(self, path, keywords):
        video_clip = me.VideoFileClip(r"{}".format(path))
        path2 = "y2.wav"
        video_clip.audio.write_audiofile(r"{}".format(path2), nbytes=2)
        recognizer = sr.Recognizer()
        """a = AudioSegment.from_wav(path2)
        a = a + 5
        a.export(path2, "wav")"""
        audio_clip = sr.AudioFile("{}".format(path2))
        with audio_clip as source:
            audio_file = recognizer.record(source)
        sent = []
        result = ""
        try:
            result = recognizer.recognize_google(audio_file)
        except sr.UnknownValueError:
            print("Can not process audio ")
        if not result:
            self.y = 0
        else:
            print(result)
            sent.append(result)
            sent = sent + keywords
            sent_vec3 = model.encode(sent)
            x = cosine_similarity(
                [sent_vec3[0]],
                sent_vec3[1:]
            )
            for i in range(len(x)):
                self.y = self.y + x[0][i]
            self.y = (self.y / (len(sent) - 1)) * 1000.0

    def res(self):
        if self.y < 0:
            self.y = 0
        return self.y


  


  And that's the traceback,
the error occurred at this line

  


  video_clip = me.VideoFileClip(r"{}".format(path))


  


  Traceback (most recent call last):
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/moviepy/video/io/ffmpeg_reader.py", line 286, in ffmpeg_parse_infos
match = re.findall("([0-9][0-9]:[0-9][0-9]:[0-9][0-9].[0-9][0-9])", line)[0]
IndexError: list index out of range

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "main.py", line 90, in
main()
File "main.py", line 85, in main
interviews_channel.start_consuming()
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/pika/adapters/blocking_connection.py", line 1865, in start_consuming
self._process_data_events(time_limit=None)
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/pika/adapters/blocking_connection.py", line 2026, in _process_data_events
self.connection.process_data_events(time_limit=time_limit)
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/pika/adapters/blocking_connection.py", line 833, in process_data_events
self._dispatch_channel_events()
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/pika/adapters/blocking_connection.py", line 567, in _dispatch_channel_events
impl_channel._get_cookie()._dispatch_events()
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/pika/adapters/blocking_connection.py", line 1492, in _dispatch_events
consumer_info.on_message_callback(self, evt.method,
File "main.py", line 79, in callback
processing(json.loads(body))
File "main.py", line 34, in processing
r = recomm(path, keywords)
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/recommendation.py", line 17, in init
video_clip = me.VideoFileClip(r"{}".format(path))
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/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/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/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/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/moviepy/video/io/ffmpeg_reader.py", line 289, in ffmpeg_parse_infos
raise IOError(("MoviePy error: failed to read the duration of file %s.\n"
OSError: MoviePy error: failed to read the duration of file 74b74292-3642-486a-8319-255bb7e7da5a-1647363285285.webm.
Here are the file infos returned by ffmpeg:

ffmpeg version 4.2.2-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8 (Debian 8.3.0-6)
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
Input #0, matroska,webm, from '74b74292-3642-486a-8319-255bb7e7da5a-1647363285285.webm':
Metadata:
encoder : Chrome
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0(eng): Audio: opus, 48000 Hz, mono, fltp (default)
Stream #0:1(eng): Video: vp8, yuv420p(progressive), 640x480, SAR 1:1 DAR 4:3, 29.42 fps, 29.42 tbr, 1k tbn, 1k tbc (default)
Metadata:
alpha_mode : 1
At least one output file must be specified