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• How to use bytes instead of file path in ffmpeg ?

  3 mai 2021, par Julio S.

  I have a function that currently receives bytes, saves it to an audio WEBM file on disk, then converts it to another audio WAV file on disk.

  


  I am looking for a way to make the above conversion without saving the WEBM files to disk, using FFMPEG.

  


  Can FFMPEG handle such conversions using bytes in memory instead of a path to a file in disk ?

  


  What I am doing right now (Python 3.8.8 64Bit) :

  


  # audio_data = bytes received

def save_to_webm(audio_data, username):
    mainDir = os.path.dirname(__file__)
    tempDir = os.path.join(mainDir, 'temp')
    webm_path = os.path.join(tempDir, f'{username}.webm')
    with open(webm_path, 'wb') as f:
        f.write(audio_data)
    return webm_path

# webm_path = input path in FFMPEG

def convert_webm_to_wav(webm_path, username):
    mainDir = os.path.dirname(__file__)
    tempDir = os.path.join(mainDir, 'temp')
    outputPath = os.path.join(tempDir, f'{username}.wav')

    if platform == 'win32':
        ffmpeg_path = os.path.join(mainDir, 'ffmpeg.exe')
    else:
        os.chdir("/ffmpeg")
        ffmpeg_path = './ffmpeg'

    command = [ffmpeg_path, '-i', webm_path, '-acodec', 'pcm_s16le', '-ar', '11025', '-ac', '1', '-y', outputPath]
    subprocess.run(command,stdout=subprocess.PIPE,stdin=subprocess.PIPE)
    return outputPath


  


• how can i set Path of ffmpeg output in vb.net

  28 avril 2015, par TOM

  I am Writing a code in vb.net to Create thumbnails of Video . But I want to set the output path or the storage path of the thumbnails

  enter code here
  
  
  
    TextBox2.Text = InputBox("Enter your Desired Name")
  
    Dim fileName As String = TextBox1.Text
  
    Dim result As String = Path.GetFileName(fileName)
  
    proc.StartInfo.Arguments = "  -i  " + result + " -r  1 " + TextBox2.Text + "%4d.jpg  "
  
    proc.Start()

  When i run this The output is stored elsewhere. So i want to store the output manually

• Can I direct ffmpeg to a folder to do work using SET PATH ?

  11 août 2017, par 3pointedit

  I have some "MXF-type" media (various media files in a containing folder) As long as I have cmd line set to the media folder it works but if I want to run from C : and point to the media directory using explicit SET PATH it won’t run ffmpeg. I don’t know why. What is wrong with the way I am expecting SET PATH to work ?

  C:\Users\MYNAME>SET PATH=%PATH%;"H:\2017\PeterMc\camb_LungDoctor_730_1403(1).vmf\" ffmpeg -enable_drefs 1 -use_absolute_path 0 -i camb_LungDoctor_730_1403(1).mov -map 0:v -map 0:a -write_tmcd 1 camb_LungDoctor_730_1403(1).mp4

  While the following example works you can see that cmd must be in the media folder path.

  H:\2017\Peter Mc\camb_LungDoctor_730_1403(1).vmf> ffmpeg -enable_drefs 1 -use_absolute_path 0 -i camb_LungDoctor_730_1403(1).mov -map 0:v -map 0:a -write_tmcd 1 camb_LungDoctor_730_1403(1).mp4