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• ffmpeg : combine filter_complex trim, overlay and concat

  4 octobre 2015, par jb_alvarado

  I try to combine different video and audio clips with trimming and a logo on top.

  My syntax looks like this :

  ffmpeg -i "$introVid" -i "$introAud" -i "$mainVid" -i "$mainAud" -i "$outroVid" -i "$outroAud" -i "$logo" -i "$mainVid" -i "$mainAud" \
  
  -filter_complex \
  
  "[2:0]trim=0.4:60[trimV1]; \
  
   [3:0]atrim=0.4:60[trimA1]; \
  
   [trimV1][6:v]overlay=main_w-overlay_w-20:15,fade=in:s=2:d=0.5:alpha=1,fade=out:s=60:d=0.5:alpha=1[fade]; \
  
   [7:0]trim=60.2:72[trimV2]; [8:0]atrim=60.2:72[trimA2]; \
  
   [0:0] [1:0] [fade] [trimA1] [4:0] [5:0] [trimV2] [trimA2] concat=n=4:v=1:a=1[cv][a]; \
  
   [cv]scale=864:480:flags=gauss:interl=0[scal]" \
  
  -map "[scal]" -map "[a]" -pix_fmt yuv420p -c:v libx264 -preset fast -y "$out"

  It works mostly, but the problem is that I get a black video, with the same length then the main video, on the 3rd place. Interesting is also, when I watch the ffmpeg process, it hangs shortly on time 1:26min and then it jumps to 2:40min. Normally the complete test video have around 1:30min.

  The output what I get is at the moment :

  ([intro][trimmed main with logo][black video][outro][credits]) <- the black video part is to much.

• Nodejs youtube-dl ffmpeg audio stream

  19 septembre 2015, par Majster

  I have an issue with streaming video from YouTube. I have a http server which attempts to grab the raw video url, pull out the audio, convert it to mp3 and stream it to clients. The issue is that I’m not getting any audio on my client. Code is below (it’s all work in progress so there’s a lot of hardcoded stuff in there).

  // The obvious stuff
  
  var exec = require('child_process').exec;
  
  var spawn = require('child_process').spawn;
  
  var request = require('request');
  
  var http = require('http');
  
  
  
  //Listen for requests
  
  var server = http.createServer(function(req, response) {
  
     //This command runs youtube-dl and gets the video url
  
     var command = './node_modules/youtube-dl/bin/youtube-dl --simulate --get-url http://www.youtube.com/watch?v=5qF_qbaWt3Q';
  
     var exc = exec(command, function(error, stdout, stderr) {
  
        var downloadUrl = stdout.toString(); //Convert the buffer to string
  
        downloadUrl = downloadUrl.substring(0, downloadUrl.length - 1); //And strip the '\n' sign at the end
  
        console.log("This thing is: '" + downloadUrl + "'");
  
        response.writeHead(200, {
  
           'Content-Type': 'audio/mpeg'
  
        }); //When this is mpeg3 browser will download a blank .mp3 file now it tries to stream it
  
  
  
        //Spawn the ffmpeg child process
  
        var child = spawn('ffmpeg', ['-i', 'pipe:0', '-acodec', 'libmp3lame','-f', 'mp3', '-']);
  
        child.stdout.pipe(response); //Pipe it so it writes to our response
  
  
  
        // fs.createReadStream(filePath).pipe(child.stdin); - this is a testing thing ---> fs is filesystem and filePath is a link to a file - works
  
        request({url: downloadUrl, headers: {'Youtubedl-no-compression': 'True'}}).pipe(child.stdin); //Request the data and pipe it to ffmpeg for processing
  
     });
  
  });

  I can provide any additional info if needed. But the thing works if I try to use a file instead of request call so there is no problem with ffmpeg and other settings. Is it possible that YouTube has a protection against downloading videos this way ? I tried to paste the URL of console.log into my browser and nothing happens - no video. How can I fix this ?

• Youtube WatchMe android project Login issue

  16 septembre 2015, par Kichu

  I created live streaming application using https://github.com/youtube/yt-watchme. And its installed on android phone.If I logged into this app.I’s still shows the "Not Signed in" Message. After login its showing the following error in android studio console

  09-16 16:48:01.970   25937-3107/com.google.android.apps.watchme E/WatchMe﹕ com.google.api.client.googleapis.json.GoogleJsonResponseException: 403 Forbidden
  
      {
  
      "code": 403,
  
      "errors": [
  
      {
  
      "domain": "usageLimits",
  
      "message": "Access Not Configured. The API (YouTube Data API) is not enabled for your project. Please use the Google Developers Console to update your configuration.",
  
      "reason": "accessNotConfigured",
  
      "extendedHelp": "https://console.developers.google.com"
  
      }
  
      ],
  
      "message": "Access Not Configured. The API (YouTube Data API) is not enabled for your project. Please use the Google Developers Console to update your configuration."
  
      }
  
              at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:113)
  
              at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:40)
  
              at com.google.api.client.googleapis.services.AbstractGoogleClientRequest$1.interceptResponse(AbstractGoogleClientRequest.java:321)
  
              at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:1056)
  
              at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:419)
  
              at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:352)
  
              at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:469)
  
              at com.google.android.apps.watchme.util.YouTubeApi.getLiveEvents(YouTubeApi.java:155)
  
              at com.google.android.apps.watchme.MainActivity$GetLiveEventsTask.doInBackground(MainActivity.java:312)
  
              at com.google.android.apps.watchme.MainActivity$GetLiveEventsTask.doInBackground(MainActivity.java:295)
  
              at android.os.AsyncTask$2.call(AsyncTask.java:288)
  
              at java.util.concurrent.FutureTask.run(FutureTask.java:237)
  
              at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
  
              at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
  
              at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
  
              at java.lang.Thread.run(Thread.java:841)

  How can i solve this issue please help.

  This application is connecting to YouTube Watch Me project.Is it possible to connect my project using client Id and client secret(How can i configure my client id to this app ?) ?

  Please suggest