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• FFMPEG command is not Working when set project's target SDK version 29(Android Q issue)

  1er juin 2020, par SAVALIYA REENA

  I am using the FFMPEG library to get a watermark stamp on video. It is working like charm in all versions when my project's target SDK version is 28 but when i set target sdk version 29, It gives me below exception.

  



  E/FFmpeg : Exception while trying to run : [Ljava.lang.java.io.IOException : Cannot "/data/user/0/com.videowatermark.addtextandtimestampongalleryvideos/files/ffmpeg" : error=13, Permission denied

  



  Caused by : java.io.IOException : error=13, Permission denied at java.lang.UNIXProcess.forkAndExec(Native Method) at java.lang.UNIXProcess.(UNIXProcess.java:133) at java.lang.ProcessImpl.start(ProcessImpl.java:141) at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029) at java.lang.Runtime.exec(Runtime.java:698) at java.lang.Runtime.exec(Runtime.java:563) at com.github.hiteshsondhi88.libffmpeg.ShellCommand.run(ShellCommand.java:10) at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:38) at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:10) at android.os.AsyncTask$3.call(AsyncTask.java:378) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:289) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) at java.lang.Thread.run(Thread.java:919)

  



  //show this error

  


• Nginx + rtmp + ffmpeg best practice to publish multiple resolutions streaming from video file

  7 novembre 2019, par youssef hamdane

  I want to make livestream from video file to multiple resolutions (480,720) using nginx and rtmp, what is the best practice that I can do for that :

  1 - transcode video and store it with all resolutions that I need when user upload it using ffmpeg, and then publish every file directly

  example :

  rtmp {
  
      server {
  
          listen 1935;
  
          notify_method get;
  
  
  
          application live {
  
              live on; 
  
              ffmpeg -re -i /path/video_720.mp4
  
             -re -i /path/video_480.mp4
  
             -map 0 vcodec libx264 -threads 0 -vprofile baseline -acodec aac -strict -2 -f flv rtmp://localhost:1935/show/${name}_720
  
             -map 0 vcodec libx264 -threads 0 -vprofile baseline -acodec aac -strict -2 -f flv rtmp://localhost:1935/show/${name}_480
  
          }
  
  
  
         application show {
  
  
  
              live on;
  
  
  
              hls on;
  
              hls_path /stream/live/hls;
  
              hls_nested on;
  
              record off;
  
  
  
              # Instruct clients to adjust resolution according to bandwidth
  
  
  
              hls_variant _720 BANDWIDTH=2048000; # High bitrate, HD 720p resolution
  
              hls_variant _480 BANDWIDTH=448000; # Medium bitrate, SD resolution
  
  
  
          }
  
  
  
      }
  
  }

  2 - keep original video and publish it on different resolutions with ffmpeg

  example :

  rtmp {
  
      server {
  
          listen 1935;
  
          notify_method get;
  
  
  
          application live {
  
              live on;     
  
  
  
              exec_pull ffmpeg -re -i http://server_ip/$app/$name -vcodec libx264 -threads 0 -vprofile baseline -acodec aac -strict -2 -b:v 1920k -b:a 128k -vf "scale=1280:trunc(ow/a/2)*2" -f flv rtmp://localhost:1935/show/${name}_720 
  
              -vcodec libx264 -threads 0 -vprofile baseline -acodec aac -strict -2 -b:v 1024k -b:a 128k -vf "scale=854:trunc(ow/a/2)*2" -f flv rtmp://localhost:1935/show/${name}_480;
  
          }
  
  
  
         application show {
  
  
  
              live on;
  
  
  
              hls on;
  
              hls_path /home/stream/live/hls;
  
              hls_nested on;
  
              record off;
  
  
  
              # Instruct clients to adjust resolution according to bandwidth
  
  
  
              hls_variant _720 BANDWIDTH=2048000; # High bitrate, HD 720p resolution
  
              hls_variant _480 BANDWIDTH=448000; # Medium bitrate, SD resolution
  
  
  
          }
  
  
  
      }
  
  }

• My own music bot randomly stops when playing a song, no errors, just like the song has ended

  18 avril 2019, par Stasio

  I made a discord music bot but there is one problem :
  When i play something it works perfectly for a moment but then sometimes music ends in the middle of the song just like the song has ended.
  When there are some songs in queue and this bug happens the bot starts playing another song from the queue. Im using ffmpeg, ytdl-core, simple-youtube-api,
  opusscript. What do u guys think about it ? I don’t think that this problem is caused by my code cuz this error happens randomly, sometimes 3 songs in a row are played normaly and sometimes it crashes in the middle of the 1 song, so he starts playing the next song in queue.

  const arg = msg.content.split(' ');
  
  const searchString = arg.slice(1).join(' ');
  
  const url = arg[1] ? arg[1].replace(/<(.+)>/g, '$1') : '';
  
  const serverQueue = queue.get(msg.guild.id);
  
  
  
  let command = msg.content.toLowerCase().split(' ')[0];
  
  command = command.slice(PREFIX.length)
  
  
  
  if (command === 'play' || command === 'p') {
  
  msg.delete()
  
  const voiceChannel = msg.member.voiceChannel;
  
  let emoji = msg.guild.emojis.find(x => x.name === "2Head")
  
      if (!voiceChannel) return msg.channel.send('Nie jesteś nawet na kanale głosowym zjebie ' + emoji);
  
      const permissions = voiceChannel.permissionsFor(msg.client.user);
  
      if (!permissions.has('CONNECT')) {
  
          return msg.channel.send('Nie mam permisji zeby sie polaczyc ;/');
  
      }
  
      if (!permissions.has('SPEAK')) {
  
          return msg.channel.send('Nie moge mowic odmutujcie mnie : )');
  
      }
  
  
  
      if (url.match(/^https?:\/\/(www.youtube.com|youtube.com)\/playlist(.*)$/)) {
  
          const playlist = await youtube.getPlaylist(url);
  
          const videos = await playlist.getVideos();
  
          for (const video of Object.values(videos)) {
  
              const video2 = await youtube.getVideoByID(video.id); 
  
              await handleVideo(video2, msg, voiceChannel, true); 
  
          }
  
          return msg.channel.send(`✅ Playlist: **${playlist.title}** has been added to the queue!`);
  
      } else {
  
          try {
  
              var video = await youtube.getVideo(url);
  
          } catch (error) {
  
              try {
  
                  var videos = await youtube.searchVideos(searchString, 1);
  
                  var video = await youtube.getVideoByID(videos[0].id);
  
              } catch (err) {
  
        console.error(err);
  
        let emoji = msg.guild.emojis.find(x => x.name === "autism")
  
                  return msg.channel.send('Nie ma takiego filmu na całym youtubie ' + emoji );
  
              }
  
          }
  
          return handleVideo(video, msg, voiceChannel);
  
      }
  
  }