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• How can I get my saved mp4 to exactly match the output of plot.show() ?

  10 mai 2019, par Jimmy

  When I try to save the results of an animation to mp4 using ffmpeg, I am getting a jumbled mess.

  plt.show() shows exactly what I want it to show in the animation. However, when I save it using ffmpeg, the result is very different from what plt.show() returns. I have tried various arguments for fps etc. but nothing has helped.

  %matplotlib
  
  import pandas as pd
  
  import matplotlib as mpl ## uncomment this if you are running this on a Mac
  
  #mpl.use('TkAgg')         ## and want to use blit=True
  
  import matplotlib.pyplot as plt 
  
  import matplotlib.animation as animation 
  
  import numpy as np 
  
  import csv
  
  
  
  people = ('','Jim', 'Dan')
  
  plt.rcdefaults()
  
  fig, ax = plt.subplots()
  
  y_pos = np.arange(len(people))
  
  
  
  ax.set_xlim(0,10)
  
  ax.set_yticks(y_pos)
  
  ax.set_yticklabels(people)
  
  ax.invert_yaxis() 
  
  ax.set_xlabel('Skill')
  
  titleList=['Basketball','Hockey','Baseball']
  
  df=[[0,5,7],[0,4,9],[0,2,6]]
  
  def animate(i):
  
     # Example data
  
      while i<3:
  
          ax.set_yticks(y_pos)
  
          ax.set_yticklabels(people)
  
          ax.set_xlabel(titleList[i])
  
          performance=df[i]
  
  
  
          title = ax.text(0.5,0.95,str(titleList[i]), bbox={'facecolor':'w', 'alpha':0.5, 'pad':5},transform=ax.transAxes, ha="center")
  
  
  
          rects = ax.barh(y_pos, performance, align='center',
  
                  color='blue', ecolor='None')
  
          return [rect for rect in rects] + [title]
  
  
  
  
  
  ani = animation.FuncAnimation(fig,animate, frames=3, blit=True
  
                              ,interval=2000,repeat=False)
  
  
  
  plt.rcParams['animation.ffmpeg_path'] = 'C:\\ffmpeg\\bin\\ffmpeg.exe'
  
  Writer = animation.writers['ffmpeg']
  
  ani.save('test.mp4')
  
  plt.show() 

  The result is a very fast video where all the data gets written over (similar to the plt.show() results when blit=False).

• Revision 36945 : au final pas grand chose passe dans les fichiers de presets ... On ...

  5 avril 2010, par kent1@… — Log

  au final pas grand chose passe dans les fichiers de presets ...
  On repasse les codec et les bitrates dans la ligne de commande
  On commence à améliorer grandement la conf

• Pydub dir error . dynamic file path dosent play sound but with specific file path the code works fine

  20 avril 2021, par anshul raj

  hello developers idk whats wrong with this code it works fine when i give exact file path to the music file but if i pass it in dynamic way it doesnt work . actually my code is that user give a music file name it get downloaded then with the meta id it find the file in downloads dir then play it

  


   def songplayer(self,meta):
        def playmmusic(name):
            from pydub.playback import play
            from pydub import AudioSegment
            AudioSegment.converter = "C:\\ffmpeg\\bin\\ffmpeg.exe"
            AudioSegment.ffmpeg = "C:\\ffmpeg\\bin\\ffmpeg.exe"
            AudioSegment.ffprobe = "C:\\ffmpeg\\bin\\ffprobe.exe"
            sound = AudioSegment.from_file(name)
            play(sound)

        print(colored("Currently Playing : " + meta['title'],'yellow'))
        r=meta['id']
        tt='./downloads/'+r
        playmmusic(tt)