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• Tkinter window and script freeze when filedialog is used

  11 décembre 2020, par RandomInternetPerson

  Im developing a audio player for python. Unfortunately, it appears as if after a modification, the file dialog portion of the script ceased working. The code below is a minimum reproducible example of the offending bit.

  


  # -----------------------Setup-----------------------
# Imports
from tkinter import * 
from tkinter.ttk import * 
from tkinter import filedialog

import simpleaudio
import subprocess

# GUI
root = Tk() 
root.title("CupPlayer") 
menubar = Menu(root)
file = Menu(menubar, tearoff = 0)
root.config(menu = menubar)
# ----------------------Functions---------------------
def file_selector(): 
    filename = filedialog.askopenfilename()
    
    root.update()
    if filename.endswith('.mp3'):
            subprocess.call(['ffmpeg', '-i', filename,
                                'audio.wav'])
btn = Button(root, text = 'search file !', bd = '5', 
                          command = file_selector) 

mainloop() 


  


• ffmpeg fails when try to use drawtext on android

  1er juin 2018, par Rafael Lima

  I’m trying to make an android app using ffmpeg, almost everything is running fine but now i got a problem trying to use drawtext

  the original command works fine :

  ffmpeg -y -i /storage/emulated/0/DCIM/Camera/asd.mp4 -c:v libx264 -preset veryfast -crf 24 -tune film -c:a copy -r 30 -force_key_frames expr:gte(t,n_forced*15) temp.mp4

  but if i try to add drawtext filter it fails :

  ffmpeg -y -i /storage/emulated/0/DCIM/Camera/asd.mp4 -c:v libx264 -preset veryfast -crf 24 -tune film -vf "drawtext=text='Made with Instagram Story Splitter':fontfile=/data/data/com.tomatedigital.instagram.storysplitter/fonts/arial.ttf" -c:a copy -r 30 -force_key_frames expr:gte(t,n_forced*15) temp.mp4

  error :

  Error selecting an encoder for stream 0:1

  I’m sure the font file is okay... and i tested same command on ffmpeg windows and ubuntu and it worked

• Overlay Image on moving object in Video

  5 juillet 2017, par Karandeep Atwal

  I am using FFmpeg to overlay image/emoji on video by this command -

  "-i "+inputfilePath+" -filter_complex "+"[0][1]overlay=enable='between(t,"+startTime+","+endTime+")'[v1]"+" -map [v0] -map 0:a "+OutputfilePath;  

  But above command only overlay image over video and stays still.

  In Instagram and Snapchat there is New pin feature . I want exactly same ,eg blur on moving faces or as in below videos -

  

  Here is link.

  Is it possible via FFmpeg ?

  I think someone with OPENCV or Argumented Reality knowledge can help in this .