Recherche avancée

Sur d’autres sites (13005)

• yasm is installed in my system but in some other folder

  22 octobre 2014, par janpal

  I am trying to install ffmpeg and x264. For this to install I have followed the instructions given in "https://ffmpeg.org/trac/ffmpeg/wiki/UbuntuCompilationGuide". I have installed yasm and checked by using the command yasm —version it showing the successfully installed version. But when I try to install ffmpeg its throwing an error like yasm not found. I have referred some sites its intend me to check the path. yasm default path is /usr/local/bin but in my system its showing as /home/janpal/bin/yasm. I tried it as a root user also. Can somebody help me to install this in the correct path. I am using ubuntu 10.04

• yasm is installed in my system but in some other folder

  22 octobre 2014, par janpal

  I am trying to install ffmpeg and x264. For this to install I have followed the instructions given in "https://ffmpeg.org/trac/ffmpeg/wiki/UbuntuCompilationGuide". I have installed yasm and checked by using the command yasm —version it showing the successfully installed version. But when I try to install ffmpeg its throwing an error like yasm not found. I have referred some sites its intend me to check the path. yasm default path is /usr/local/bin but in my system its showing as /home/janpal/bin/yasm. I tried it as a root user also. Can somebody help me to install this in the correct path. I am using ubuntu 10.04

• Why is the audio recording on Chrome missing duration

  16 août 2019, par Ivan Sedelkin

  I’m sending some user created audio to a server which later passes it to googles speech to text api for transcription. Everything works perfectly on firefox but when I try it on Chrome it doesn’t work. I then installed FFmpeg to check if the metadata somehow changed for the file on chrome and noticed that the duration on the file is tagged "N/A". This does not happen on firefox.

  This is the audio recorded from Chrome

  Input #0, matroska,webm, from 'PATH_TO_FILE':
  
    Metadata:
  
      encoder         : Chrome
  
    Duration: N/A, start: 0.000000, bitrate: N/A
  
      Stream #0:0(eng): Audio: opus, 48000 Hz, mono, fltp (default)

  This is the audio recorded from Firefox

  Input #0, ogg, from 'PATH_TO_FILE':
  
    Duration: 00:00:01.26, start: 0.000000, bitrate: 53 kb/s
  
      Stream #0:0: Audio: opus, 48000 Hz, mono, fltp
  
      Metadata:
  
        ENCODER         : Mozilla68.0

  The audio itself is recorded using the mediarecorder-api where the blob is later converted to base64-url and sent to my server.

  This is the code that I use to record the audio :

  navigator.mediaDevices
  
      .getUserMedia(
  
        // constraints - only audio needed for this app
  
        {
  
          audio: true
  
        }
  
      )
  
  
  
      // Success callback
  
      .then(function(stream) {
  
        console.log(navigator.mediaDevices.getSupportedConstraints());
  
        var mediaRecorder = new MediaRecorder(stream, { sampleRate: 44100 });
  
        var chunks = [];
  
        $(".rec-button")
  
          .mousedown(function() {
  
            console.log("rec start");
  
            $(".rec-button i").addClass("recStart");
  
            mediaRecorder.start();
  
            console.log(mediaRecorder.state);
  
            console.log("recorder started");
  
          })
  
          .mouseup(function() {
  
            console.log("rec end");
  
            $(".rec-button i").removeClass("recStart");
  
            mediaRecorder.stop();
  
            mediaRecorder.ondataavailable = function(e) {
  
              chunks.push(e.data);
  
              var blob = new Blob(chunks, { type: "audio/ogg; codecs=opus" });
  
              var player = document.getElementById("player");
  
              player.src = URL.createObjectURL(blob);
  
              chunks = [];
  
              var reader = new window.FileReader();
  
              reader.readAsDataURL(blob);
  
              reader.onloadend = function() {
  
                var base64 = reader.result;
  
                var audioArr = {
  
                  audio: base64
  
                };
  
                $.ajax({
  
                  url: "http://localhost:4242/api/1.0/post",
  
                  type: "POST",
  
                  contentType: "application/json",
  
                  dataType: "json",
  
                  data: JSON.stringify(audioArr),
  
                  success: function(response) {
  
                    console.log(response);
  
                  },
  
                  error: function(err) {
  
                    console.log(err);
  
                  }
  
                });
  
              };
  
              console.log(mediaRecorder.state);
  
              console.log("recorder stopped");
  
            };
  
          });
  
      })
  
  
  
      // Error callback
  
      .catch(function(err) {
  
        console.log("The following getUserMedia error occured: " + err);
  
      });

  My goal is that the audio file recorded from chrome has a duration so that the google api can transcribe it. If you guys have any way of overcoming this problem I would be grateful