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• 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')

• How to apply Grain in FFMPEG like CAPCUT Grain adjustment

  9 janvier 2024, par Yander Sanchez

  I'm trying to find information about how to apply grain in video using ffmpeg, but unfortunally i couldn't find a viable solution.

  


  I need to apply a grain like Capcut. Here screenshot

  


  I was reading something about it in ffmpeg documentation page, but i didn't find something related.

  


  


  Documentation i was reading<

  &#xA;

  &#xA;

  Can someone guide me what command I could apply with ffmpeg to be able to get something like this ?&#xA;Here screenshot

  &#xA;

  I need this command to apply it in Node/Express using Fluent-FFmpeg.

  &#xA;

• Revision c082df2359 : Make interintra experiment work with highbitdepth Also includes some adjustment

  18 mars 2015, par Deb Mukherjee

  Changed Paths :
   Modify /vp9/common/vp9_reconintra.c

  
   Modify /vp9/common/vp9_rtcd_defs.pl

  
   Modify /vp9/encoder/vp9_encodeframe.c

  
   Modify /vp9/encoder/vp9_quantize.c

  
   Modify /vp9/encoder/vp9_rdopt.c

  
  
  Make interintra experiment work with highbitdepth

  Also includes some adjustments to the algorithm.
  All stats look good.

  Change-Id : I824ef8ecf25b34f3feb358623d14fe375c3e4eb7