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• Trying to save an animation gives error : OSError : Error saving animation to file (cause : [Errno 22] Invalid argument)

  18 octobre 2019, par Esmee

  I am trying to save an animation, but I get the error :

  OSError : Error saving animation to file (cause : [Errno 22] Invalid argument) Stdout : b’’ StdError : b’’. It may help to re-run with logging level set to DEBUG.

  I have installed ffmpeg and also added the path to it in my code. If I add print(animation.writers.list()), it gives ’ffmpeg’ in the list as well so I’m sure my computer can find the right file.

  At the top of my code, I have :

  import matplotlib.pyplot as plt
  
  plt.rcParams['animation.ffmpeg_path'] = 'C:/FFmpeg/bin/ffmpeg.exe'

  And when saving the animation, I have :

  SubplotAnimation_1 = SubplotAnimation(F_vector, eta_atm, Pkid, Tb_sky)
  
  Writer = animation.FFMpegWriter(fps=20, metadata=dict(artist='Me'), extra_args=['--verbose-debug'])
  
  file_string = r'C:/Users/Esmee/Documents/Animations/animation_tryout.mp4'
  
  print(file_string)
  
  SubplotAnimation_1.save(file_string, writer=Writer)

  I have added the r in front of the string, so there are no problems with the /a in the file_string. The folder C :/Users/Esmee/Documents/Animations/ exists for sure, so that also shouldn’t be a problem.
  I have also tried

  Writer = animation.writers['ffmpeg']
  
  mywriter = Writer(fps=15, metadata=dict(artist='Me'), bitrate=1800)

  But it doesn’t work either.

  I have looked at animation save gets errror, How can I overcome this key word error and No Moviewriters available, but none of them offers a solution to my problem.

  Does anyone know what the problem could be ? Thanks in advance !

• Finding File Matches & Variable Assignment using a .BAT Script

  6 octobre 2019, par A Person — batch-file, ffmpeg

  I am trying to assign a file to a variable in a batch-file and then also assign another 2 files into anoter variable.

  However, I am having an issue.

  From research, I found how I can do the assigning but does anyone know how I can do the below.

  From a folder or text file, (either is fine), find the .m2v video file and assign that to Var1 then find matching audio in .wav and put that in Var2 and the third is also an audio .wav with mathcing name and assign that to Var3.

  The problem I am having is trying to find the matching 2 audio files to the video.

  The video file is named as :

  PAV_PRG_13683Highc450277201906251802090353.m2v

  Audio 1 is :

  PAV_PRG_13683High01c450211201906251802090376.wav

  Audio 2 is :

  PAV_PRG_13683High00c450211201906251802090368.wav

  The file name matches until it sees the word High. Everything after High is not needed, (it is just a random string), so trying to match is an issue.

  Is there a way to find the match by comparing everything before High.

  Also as I will be using the variable and putting them through ffmpeg to merge, is there way to do it so that when the ffmpeg command has completed, it moves to the next matching files and assigns them to the variable.

  The files are store in 2 folders, one folder has all the video files *.m2v and another folder has all the *.wav audio files in pairs of 2. Each video has exactly 2 audios, (left right).

  is there any help on this subject, I have already come up empty in my research and have been checking for this over the last week spent almost 30 hours.

• find matching files using a.bat script and assign them to a variable ?

  2 octobre 2019, par A Person

  I am trying to assign a file to a variable in batch-file and then also assign anoter 2 files into anoter variable.

  However, i am having an issue.

  From research, i found how i can do the assigning but does anyone know how i can do the below.

  From a folder or text file (either is fine) find the .m2v video file and assign that to Var1 then find matching audio in .wav and put that in Var2 and the third is also an audio .wav with mathcing name and assign that to Var3.

  Problem i am having is that trying to find the matching 2 audio file to the video.

  The video file is named as PAV_PRG_13683Highc450277201906251802090353.m2v

  Audio 1 is : PAV_PRG_13683High01c450211201906251802090376.wav

  Audio 2 is : PAV_PRG_13683High00c450211201906251802090368.wav

  the file name matches until it sees the word High. Everything after High is not needed and is random string so trying to match is an issue.

  is there a way to find the match by comparing everything before High.

  Also as i will be using the variable and putting them through ffmpeg to merge, is there way to do it so that when the ffmpeg command is done, it moves to the next matching files and assigns them to the variable.

  files are store in 2 folders

  One folder has all the video files *.m2v

  and another folder has all the *.wav audio files in pairs of 2. Each video has exactly 2 audios (left right audio)

  is there any hel pon this subject, i have already come up empty in my research and have been checking for this over the last week spent almost 30 hours.