Recherche avancée

Sur d’autres sites (3768)

• Transcoding with custom commands using streamio-ffmpeg

  14 avril 2017, par ACIDSTEALTH

  I’m trying to transcode a video file using streamio-ffmpeg with some custom commands, but nothing I try seems to work. I want to transcode the video with the following options :

  ffmpeg -i input.mp4 -vf
  
      "format=yuv444p,
  
       drawbox=y=ih/PHI:color=0x000000@0.4:width=iw:height=48:t=max,
  
       drawtext=font='OpenSans-Regular,Sans':text='CUSTOM TEXT':fontcolor=0xFFFFFF:fontsize=24:x=(w-tw)/2:y=(h/PHI)+th,
  
       format=yuv420p"
  
  -c:v libx264 -c:a copy -movflags +faststart output.mp4

  I’ve tried the following code combinations without success :

  1. Tried removing the line breaks and converting the command string to an array, following the instructions in the docs.

     video = FFMPEG::Movie.new('input.mp4')
     
     opts = %w(ffmpeg -i input.mp4 -vf "format=yuv444p, drawbox=y=ih/PHI:color=0x000000@0.4:width=iw:height=48:t=max, drawtext=font='OpenSans-Regular,Sans':text='CUSTOM TEXT':fontcolor=0xFFFFFF:fontsize=24:x=(w-tw)/2:y=(h/PHI)+th, format=yuv420p" -c:v libx264 -c:a copy -movflags +faststart output.mp4)
     
     video.transcode('output.mp4', opts)

     But this yields the error :

     [NULL @ 0x7f962100e200] Unable to find a suitable output format for 'ffmpeg'
     
     ffmpeg: Invalid argument
     
     from /Users/ACIDSTEALTH/.gem/ruby/2.3.0/gems/streamio-ffmpeg-3.0.2/lib/ffmpeg/transcoder.rb:112:in `validate_output_file'

  2. Tried stripping out the input file name and output file name since the gem seems to handle that for you.

     video = FFMPEG::Movie.new('input.mp4')
     
     opts = %w(-vf "format=yuv444p, drawbox=y=ih/PHI:color=0x000000@0.4:width=iw:height=48:t=max, drawtext=font='OpenSans-Regular,Sans':text='CUSTOM TEXT':fontcolor=0xFFFFFF:fontsize=24:x=(w-tw)/2:y=(h/PHI)+th, format=yuv420p")
     
     video.transcode('output.mp4', opts)

     Which returns this error :

     [NULL @ 0x7fd0a9008c00] Unable to find a suitable output format for 'drawbox=y=ih/PHI:color=0x000000@0.4:width=iw:height=48:t=max,'
     
     drawbox=y=ih/PHI:color=0x000000@0.4:width=iw:height=48:t=max,: Invalid argument
     
     from /Users/ACIDSTEALTH/.gem/ruby/2.3.0/gems/streamio-ffmpeg-3.0.2/lib/ffmpeg/transcoder.rb:112:in `validate_output_file'

  3. Tried removing the -vf flag and just running everything within the quotation marks.

     video = FFMPEG::Movie.new('input.mp4')
     
     opts = %w(format=yuv444p, drawbox=y=ih/PHI:color=0x000000@0.4:width=iw:height=48:t=max, drawtext=font='OpenSans-Regular,Sans':text='CUSTOM TEXT':fontcolor=0xFFFFFF:fontsize=24:x=(w-tw)/2:y=(h/PHI)+th, format=yuv420p)
     
     video.transcode('output.mp4', opts)

     This returns another error :

     [NULL @ 0x7fab8101fe00] Unable to find a suitable output format for 'format=yuv444p,'
     
     format=yuv444p,: Invalid argument
     
     from /Users/ACIDSTEALTH/.gem/ruby/2.3.0/gems/streamio-ffmpeg-3.0.2/lib/ffmpeg/transcoder.rb:112:in `validate_output_file'

  4. Tried removing the format arguments since ffmpeg is clearly complaining about those.

     video = FFMPEG::Movie.new('input.mp4')
     
     opts = %w("drawbox=y=ih/PHI:color=0x000000@0.4:width=iw:height=48:t=max, drawtext=font='OpenSans-Regular,Sans':text='CUSTOM TEXT':fontcolor=0xFFFFFF:fontsize=24:x=(w-tw)/2:y=(h/PHI)+th")
     
     video.transcode('output.mp4', opts)

     Again another error :

     [NULL @ 0x7fc7f880a800] Unable to find a suitable output format for 'drawbox=y=ih/PHI:color=0x000000@0.4:width=iw:height=48:t=max,'
     
     drawbox=y=ih/PHI:color=0x000000@0.4:width=iw:height=48:t=max,: Invalid argument
     
     from /Users/ACIDSTEALTH/.gem/ruby/2.3.0/gems/streamio-ffmpeg-3.0.2/lib/ffmpeg/transcoder.rb:112:in `validate_output_file'

  5. Tried building a hash from the command string and feeding that into the transcode method.

     video = FFMPEG::Movie.new('input.mp4')
     
     opts = {
     
         '-vf' => {
     
             format: 'yuv444p',
     
             drawbox: {
     
                 y: 'ih/PHI', color: '0x000000@0.4', width: 'iw', height: '48', t: 'max'
     
             },
     
             drawtext: {
     
                 font: 'OpenSans-Regular,Sans', text: snap.title, fontcolor: '0xFFFFFF', fontsize: '24', x: '(w-tw)/2', y: '(h/PHI)+th'
     
             },
     
             format: 'yuv420p'
     
         }
     
     }
     
     video.transcode('output.mp4', opts)

     I also tried a variation without the -vf flag :

     video = FFMPEG::Movie.new('input.mp4')
     
     opts = {
     
         format: 'yuv444p',
     
         drawbox: {
     
             y: 'ih/PHI', color: '0x000000@0.4', width: 'iw', height: '48', t: 'max'
     
         },
     
         drawtext: {
     
             font: 'OpenSans-Regular,Sans', text: snap.title, fontcolor: '0xFFFFFF', fontsize: '24', x: '(w-tw)/2', y: '(h/PHI)+th'
     
         },
     
         format: 'yuv420p'
     
     }
     
     video.transcode('output.mp4', opts)

  These both produced an output.mp4 video file but the output file was unchanged from the input. There was no text overlay.

  Nothing I try seems to work. What am I doing wrong here ?

• MoviePy on EC2 Instance Super Slow

  27 janvier 2020, par connorvo

  No matter what size EC2 instance I use, MoviePy.write_videofile() takes forever.

  I ran it on a t2.micro, c5.large, and c4.2xlarge and they all projected to take the same amount of time ( 7 hours).

  I have a 720mb mp4 file that I am adding a 30mb mp4 file to the beginning of and then putting a text overlay on the entire video (just static text saying the company name in the bottom corner).

  final_video.write_videofile(
  
      f"{FINAL_VIDEO_FILENAME}.mp4", 
  
      fps=60,
  
      codec='libx264', 
  
      audio_codec='aac', 
  
      temp_audiofile=f'{FINAL_VIDEO_FILENAME}_temp_audio.mp4', 
  
      remove_temp=True,
  
      threads = 8, # this was for c4.2xlarge instance
  
  )

  def __get_intro_clip(self, title, size, fps):
  
          clip = ( VideoFileClip('ytbot/intro_video/intro_video.mp4')
  
              .subclip(0,9.5)
  
              .resize(size)
  
              .set_fps(fps)
  
          )
  
  
  
          # make bigger then resize() so stroke works properly
  
          text_clip1 = ( TextClip(f'{TEXTTEXT}',font='Helvetica-Narrow-Bold',fontsize=self.DEFAULT_TEXT_SIZE*self.TITLE_MULTIPLIER,color='white',stroke_color='black',stroke_width=self.DEFAULT_STROKE_SIZE*self.TITLE_MULTIPLIER).resize(self.DEFAULT_RESIZE_MULTIPLIER)
  
              .margin(bottom=175, opacity=0)
  
              .set_position('center')
  
              .set_duration(4) 
  
              .set_start(1)
  
              .fadein(0.25)
  
              .fadeout(0.25)
  
          )
  
          text_clip2 = ( TextClip(f'presents',font='Helvetica-Narrow-Bold',fontsize=self.DEFAULT_TEXT_SIZE*self.TITLE_MULTIPLIER*0.7,color='white',stroke_color='black',stroke_width=self.DEFAULT_STROKE_SIZE*self.TITLE_MULTIPLIER).resize(self.DEFAULT_RESIZE_MULTIPLIER)
  
              .set_position('center')
  
              .set_duration(3.5) 
  
              .set_start(1.5)
  
              .fadein(0.25)
  
              .fadeout(0.25)
  
          )
  
          text_clip3 = ( TextClip(title,font='Helvetica-Narrow-Bold',fontsize=self.DEFAULT_TEXT_SIZE*self.TITLE_MULTIPLIER,color='white',stroke_color='black',stroke_width=self.DEFAULT_STROKE_SIZE*self.TITLE_MULTIPLIER).resize(self.DEFAULT_RESIZE_MULTIPLIER)
  
              .margin(top=175, opacity=0)
  
              .set_position('center')
  
              .set_duration(3) 
  
              .set_start(2)
  
              .fadein(0.25)
  
              .fadeout(0.25)
  
          )
  
  
  
          return CompositeVideoClip([clip, text_clip1, text_clip2, text_clip3]).fadein(0.5)
  
  
  
      def edit_yt_video(self, video_path, name):
  
          video_clips = []
  
  
  
          clip = VideoFileClip(video_path)
  
  
  
          video_clips.append(self.__get_intro_clip(name, clip.size, clip.fps))
  
  
  
          text_clip = ( TextClip('Company: {name}',font='Helvetica-Narrow-Bold',fontsize=self.DEFAULT_TEXT_SIZE,color='white',stroke_color='black',stroke_width=self.DEFAULT_STROKE_SIZE).resize(self.DEFAULT_RESIZE_MULTIPLIER)
  
              .margin(bottom=15, left=15, opacity=0)
  
              .set_position(('left', 'bottom'))
  
              .set_duration(clip.duration)
  
          )
  
  
  
          video_clips.append(CompositeVideoClip([clip, text_clip]).fadeout(0.5).crossfadein(0.5))
  
  
  
          return concatenate_videoclips(video_clips, padding=-1, method='compose')

• Anomalie #3645 : Plusieurs bugs avec le bouton plein écran

  2 février 2016, par RastaPopoulos ♥

  En fait ce n’est pas que pour le Fullscreen : le bouton "Voir" de prévisualisation a aussi des bugs sur le même principe : les sélecteurs utilisés dans le JS ne font pas gaffe à ne travailler QUE à l’intérieur du champ en question, mais sur toute la page…