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• How i can convert with Python (audio file from .oga format to .wav format) without using ffmpeg ?

  21 août 2021, par Maks

  Telegram save audio file with .oga, but in my telegram bot i using googleSpeech recognition library which takes .wav file format.
I used ffmpeg with my computer, but it needs to install the program and runs it in subprocess, but if i want deploy bot in some host, i need install ffmpeg on it.
How can i convert .oga to .wav using only python libraries ?
Here is my part of code, if who needs.

  


  def convert_file(self):
    if os.path.exists(os.path.abspath(self.filename)) and os.path.exists(self.new_file):
        pass
    else:
        process = subprocess.run(["ffmpeg", "-hide_banner", "-i", 
(os.path.abspath(self.filename)), self.new_file])
        if process.returncode != 0:
            raise Exception("Something went wrong")

async def recognize_file(self):
    try:
        tlg_audio = sr.AudioFile(os.path.abspath(self.new_file))
        r = sr.Recognizer()
        with tlg_audio as source:
            audio = r.listen(source)
            if self.language is None:
                self.language = "ru-Ru"
                text = r.recognize_google(audio, language=self.language)
                return text
            else:
                text = r.recognize_google(audio, language=self.language)
                return text
    except sr.UnknownValueError:
        return "I not hear you"


  


• fluent-ffmpeg add multiple languages from method dynamically nodejs

  18 février 2021, par AmitKumar

  I am trying to add multiple languages and subtitles to a video dynamically. but I am not able to find any solution, I found many results for the command line.

  


  I want to call this command script from my nodejs method

  


  ffmpeg -i captain-marvel-trailer.mp4 -i tamil.mp3 -i telugu.mp3 -i hindi.mp3 -map 1 -map 2 -map 3 -metadata:s:a:0 language=eng -metadata:s:a:1 language=tam -metadata:s:a:2 language=tel -metadata:s:a:3 language=hin -codec copy multilanguage.mp4


  


  Here is my codes :

  


  lodash.each(payloadData.languages,function(language){
    let start = 0;
    let max = payloadData.languages.length;
    while (start < max) {
        // fname = `${path.resolve(`contents/hindi.mp3`)} -map 1 -metadata:s:a:0 language=hin -codec copy ${finalVideoPath}`
        // ffmpeg().input(fname)        
        start += 1;
    }
})
    
ffmpeg('./sample.mov')
    .withOutputFormat('.mp4')
    .size('1920x1080')
    .on("end", function (stdout, stderr) {  

    })
}).on("error", function (err) {
    console.log("an error happened: " + err.message);
}).save(finalVideoPath)


  


• avformat/matroskaenc : Don't implicitly mark WebVTT in WebM as English

  18 janvier 2020, par Andreas Rheinhardt

  avformat/matroskaenc : Don't implicitly mark WebVTT in WebM as English
  Writing the language of WebVTT in WebM proceeded differently than the
  
  language of all other tracks : In case no language was given, it does not
  
  write anything instead of "und" (for undefined). Because the default
  
  value of the Language element in WebM (that inherited it from Matroska)
  
  is "eng" (for English), any such track will actually be flagged as
  
  English.
  Doing it this way goes back to commit 509642b4 (the commit adding
  
  support for WebVTT) and no reason for this has been given in the commit
  
  message or in the discussion about this patch on the mailing list ; the
  
  best I can think of is this : the WebM wiki contains "The srclang attribute
  
  is stored as the Language sub-element." Someone unfamiliar with default
  
  values in Matroska/WebM could interpret this as meaning that no Language
  
  element should be written if the language is unknown. And this is wrong
  
  and this commit changes it.
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] libavformat/matroskaenc.c