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• Convert wmv to mp4 with ffmpeg failing

  10 janvier 2012, par Morph

  I've seen quite a few posts on this, but I can't piece together whether I am doing things right, wrong, or need to download more stuff. I am converting from wmv to mp4 without complaints, but then when I go to play it on the browser window (HTML5) the player just turns grey and blanks out the controls.

  Installing ffmpeg I do

  ./configure --disable-yasm ; make ; make install

  Unless I include the disable yasm it wont go any further. Then I do

  ffmpeg -i myvideo.wmv myvideo.mp4

  All good so far. In my html source I have :

    <video width="320" height="240" controls="controls">
  
    <source src="myvideo.mp4" type="&#39;video/mp4;" codecs="avc1.42E01E, mp4a.40.2"></source>
  
    Your browser does not support the video tag.
  
    </video>

  I am playing this in Chrome 15 and ffmpeg -v is

  ffmpeg version 0.8.6, Copyright (c) 2000-2011 the FFmpeg developers
  
  built on Dec  1 2011 15:42:06 with gcc 4.1.2 20080704 (Red Hat 4.1.2-51)
  
  configuration: --disable-yasm
  
  libavutil    51.  9. 1 / 51.  9. 1
  
  libavcodec   53.  7. 0 / 53.  7. 0
  
  libavformat  53.  4. 0 / 53.  4. 0
  
  libavdevice  53.  1. 1 / 53.  1. 1
  
  libavfilter   2. 23. 0 /  2. 23. 0
  
  libswscale    2.  0. 0 /  2.  0. 0

  So I get the HTML5, click on it to play the movie but then the control bar greys out, leaving the play button, but then the play button cannot be clicked and nothing plays.

  Is there something wrong with what I have done above ? Do I need to download some separate mp4 driver and compile it ? I see people referring to h.264 but I thoughts ffmpeg had that already included...

• doc : Add FAQs about running in background (rev 2)

  15 novembre 2017, par Jim DeLaHunt

  doc : Add FAQs about running in background (rev 2)
  Add two FAQs about running FFmpeg in the background.
  
  The first explains the use of the -nostdin option in
  
  a straightforward way. Text revised based on review.
  The second FAQ starts from a confusing error message,
  
  and leads to the solution, use of the -nostdin option.
  
  The purpose of the second FAQ is to attract web searches
  
  from people having the problem, and offer them a solution.
  Add an anchor to the Main Options section of the ffmpeg
  
  documentation, so that the FAQs can link directly there.
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] doc/faq.texi
  • [DH] doc/ffmpeg.texi

• How do I fix this error in Python : RuntimeWarning : Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work

  11 mars 2023, par Mason Griffith

  I have been trying to mess around with some of Eleven Labs API and make a simple program that takes in a string and can use the API to retrun a voice provided by Eleven Labs speaking the string. I've seen people using similar code to this but I always get the same error telling me it couldnt find ffmpeg or avconv. Any help would be grealty appreciated. Here is the code below.

  


  from elevenlabslib import *
import pydub
import pydub.playback
import io


def play(bytesData):
    sound = pydub.AudioSegment.from_file_using_temporary_files(io.BytesIO(bytesData))
    pydub.playback.play(sound)
    return


user = ElevenLabsUser("API_KEY")  # fill in your api key as a string
voice = user.get_voices_by_name("Rachel")[0]  # fill in the name of the voice you want to use. ex: "Rachel"
play(voice.generate_audio_bytes("Test"))  # fill in what you want the ai to say as a string


  


  Ive downloaded all the suggested packages and downloaded ffmpeg for windows but nothing has worked yet. I can see that the request is going through to the Eleven Labs website as my requested string pops up in my history on Eleven Labs but because of the error no audio is returned.