Recherche avancée

Sur d’autres sites (7092)

• How can I play an audio file while converting it with ffmpeg in Node.js ?

  18 août 2017, par Blake Allen

  I created a simple video-to-audio converter with ffmpeg for my discord.js bot :

  let stream = //an mp4 stream
  
  ffmpeg(stream)
  
    .toFormat("mp3")
  
    .stream(fs.createWriteStream("./audio.mp3"))
  
    .on("end", () => {
  
      connection.playStream(fs.createReadStream("./audio.mp3"))
  
    });

  This all works fine, but using .on() to play the file - only after it completely finishes converting - can take a while.

  Is there an efficient way to use connection.playStream to play the audio file or stream as the ffmpeg conversion is still happening ?

• Code forks fine on macbook laptop..but on Imac(Yosemite) I get errors in my shell script

  2 mars 2015, par arantx

  I’m still figuring out how to work within the terminal, mainly with FFmpeg at the moment. I have this code running for a while now on my macbook pro (snow leopard I think). It works fine, no glitches whatsover. I just got an Imac (yosemite) and I wanted to install the same code, but now it gives these minor stupid syntax errors - that are not at fault on my laptop ! Its seems bizar to me, but maybe it’s something I forgot to install .. like a certain library ? I’ve tried to use the same steps as before but ofcourse I might have forgotten about one..

  The code will make a clip of 5 seconds on every hour via the embedded webcam, (the hourly notice is being programmed within crontab). This is the shell script :

  ---

  #!/bin/bash
  
  
  
  FNAME=videocapture_`date +"%F_%H_%M"`.mpg
  
  echo $FNAME
  
  
  
  /usr/local/bin/ffmpeg -t 5 -f avfoundation -i "default" $FNAME

  ---

  And these are the erros (I tried to change a few small syntaxes to see if it would stop but it just finds new errors)

  "SyntaxError: EOL while scanning string literal
  
  Arantxas-iMac:~ arantx$ python /Users/arantx/Documents/terminal\ stuff/camera.sh 
  
    File "/Users/arantx/Documents/terminal stuff/camera.sh", line 3
  
      FNAME=videocapture_'date +"%F_%H_%M"`.mpeg
  
                                               ^
  
  SyntaxError: EOL while scanning string literal
  
  Arantxas-iMac:~ arantx$ python /Users/arantx/Documents/terminal\ stuff/camera.sh 
  
    File "/Users/arantx/Documents/terminal stuff/camera.sh", line 3
  
      FNAME=videocapture_'date +"%F_%H_%M"`.mpeg 
  
                                                ^
  
  SyntaxError: EOL while scanning string literal
  
  Arantxas-iMac:~ arantx$ python /Users/arantx/Documents/terminal\ stuff/camera.sh 
  
    File "/Users/arantx/Documents/terminal stuff/camera.sh", line 3
  
      FNAME=videocapture_'date +"%F_%H_%M"`.mp4"

  ---

  If someone can point something out that I might have missed, let me know !

  Kind regards,

  Arantxa

• read rtsp stream in my server

  1er mars 2015, par Andrew Simpson

  using C# and ffmpeg.

  Is it possible to stream from a RTSP on my local network and stream it back to my server and then somehow recieve my rtsp stream on my server using c# ?
  What is the accepted way ?

  I started this off in a DOS Window on my client PC and I installed Fiddler on my server to if it could detect the RTSP coming in. It did not.

  These are my arguments for FFMPEG :

  ffmpeg -i rtsp://my rstp connection -vf mpdecimate -c:v libx264 -preset medium -crf 25 -r 10 pipe rtsp://88.208.237.66

  I have used http as well t my server.

  I just wanted to see if ANYTHING came through to my server...