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• how to sync video and audio in python

  15 septembre 2018, par Abhinandan Kapoor

  So, i have written the following code.it consist of three functions :
  1.Opencv(for recording video)
  2.pyaudio (for audio recording)
  3.ffmpeg(for sync audio & video

  Now the problem is that i’m able to get a single file with audio & video but they’re not sync.how to make them sync.

  Plus I need help in start/stop of the opencv.I tried to set time duration in opencv but unable to get.kindly help me in this.

  **import numpy as np
  
  import cv2
  
  import time
  
  # The duration in seconds of the video captured
  
  capture_duration = 10
  
  cap = cv2.VideoCapture(0)
  
  fourcc = cv2.VideoWriter_fourcc(*'XVID')
  
  out = cv2.VideoWriter('output.avi',fourcc, 20.0, (640,480))
  
  start_time = time.time()
  
  while( int(time.time() - start_time) < capture_duration ):
  
      ret, frame = cap.read()
  
      if ret==True:
  
          frame = cv2.flip(frame,0)
  
          out.write(frame)
  
          cv2.imshow('frame',frame)
  
      else:
  
          break
  
  cap.release()
  
  out.release()
  
  cv2.destroyAllWindows()**

• Audio Segment Library in Python Telegram Bot

  30 août 2021, par sukan

  I need to use the Audio Segment Library to Convert Audios to Text I install it but it's showing a Warning at runtime whaen I Run the Project and it doesn't work :

  


  


  RuntimeWarning : Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work
warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work", RuntimeWarning)

  


  


  sound = AudioSegment.from_ogg('user.ogg')
        sound.export('user.wav', format="wav")
        r = sr.Recognizer()
        with sr.AudioFile("user.wav") as source:
            audio = r.record(source)
            text = r.recognize_google(audio)
            print(text)


  


  


  Note : It was working before I format my computer ,But when I try to reinstall it ,The Message Appears.

  


  


  I need Your Kindly help
and Thank You...

  


• ffmpeg not creating the thumbnail image if the name of the video has space in between

  2 décembre 2017, par Ezhil Kumar

  I installed ffmpeg in my windows 10 PC successfully and got it running. I tired to create a thumbnail of the video i succeeded in it also but when i tried to create a thumbnail of the video which has space in between the names is not creating the thumbnail please help me.

  Eg :

  "demo.mp4" is creating the demo.jpg thumbnail
  
  
  
  "my first video.mp4" is not creating the thumbnail

  This is my Code kindly check it and say me a solution

  <?php 
  
  
  
  $ffmpeg = 'C:\FFMPEG\bin\ffmpeg.exe'; 
  
  
  
  $video  = 'D:\Video\my first video.mp4'; 
  
  
  
  $image  = 'C:\FFMPEG\bin\my first video.jpg'; 
  
  
  
  $second = 3; 
  
  
  
  $cmd = "$ffmpeg -i $video 2>&1"; 
  
  if (preg_match('/Duration: ((\d+):(\d+):(\d+))/s', `$cmd`, $time)) { 
  
      $total = ($time[2] * 3600) + ($time[3] * 60) + $time[4]; 
  
      $second = rand(1, ($total - 1)); 
  
  } 
  
  
  
  $cmd = "$ffmpeg -i $video -deinterlace -an -ss $second -t 00:00:01 -r 1 -y -s 270x200 -vcodec mjpeg -f mjpeg $image 2>&1"; 
  
  $return = `$cmd`; 
  
  
  
  echo 'done!'; 
  
  ?>