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• avcodec.h and avfiltergraph.h files are not found

  12 avril 2019, par Dries Jans

  I’m testing out a RTSP encoded stream transmitter using mpeg4. I found the code from this topic : FFMPEG to send RTSP encoded stream C++

  I think there is a problem with different build versions. I’m using the
  4.1.1 build.

  I’ve already tried to use the avcodec header in the libavcodec directory, but I have no idea if this is correct because I can’t find a replacement for the avfiltergraph header. I tried replacing it with avfilter header, but this gave an error on the CODEC_ID_H264.

  #include <libavfilter></libavfilter>avfiltergraph.h>
  
  #include <libavfilter></libavfilter>avcodec.h>

  You also need to execute next command to provide an listening service.

  ffplay -rtsp_flags listen -i rtsp://127.0.0.1:8554/live.sdp

• Video editing multi customer host in server instances

  1er août 2020, par General Omosco

  I created a multi conference live stream web app using rtc and ffmpeg C api for media stream, videos/images/texts files mixed up together in realtime sending the output to rtmp multiple destinations, but unfortunately my server could not handle more than 2 conference room smoothly.

  


  The server which couldn't handle more than two conference room running ffmpeg api

  


  It is Comfort plan in OVH
Type : vps,
Processor : 4 vCore,
Ram : 8gb

  


  Usage
CPU : 100% //playing smoothly or not.
Ram : 3%

  


  My question here is that. Is it possible to be creating self isolated instance on fly and automatically deploy the app in the instance for each customer ? And the host provider that can accept that.

  


• Firebase function error : Cannot find ffmpeg

  9 janvier 2020, par Nathan

  I’m using the firebase storage to execute a function when a video gets uploaded to the default bucket, in the function I’m using Ffmpeg to convert the video and set some other options like size, then I want to reupload the file back to storage and I keep getting this error :

  Error: Cannot find ffmpeg
  
  at /srv/node_modules/fluent-ffmpeg/lib/processor.js:136:22
  
  at FfmpegCommand.proto._getFfmpegPath (/srv/node_modules/fluent-ffmpeg/lib/capabilities.js:90:14)
  
  at FfmpegCommand.proto._spawnFfmpeg (/srv/node_modules/fluent-ffmpeg/lib/processor.js:132:10)
  
  at FfmpegCommand.proto.availableFormats.proto.getAvailableFormats (/srv/node_modules/fluent-ffmpeg/lib/capabilities.js:517:10)
  
  at /srv/node_modules/fluent-ffmpeg/lib/capabilities.js:568:14
  
  at nextTask (/srv/node_modules/async/dist/async.js:4578:27)
  
  at Object.waterfall (/srv/node_modules/async/dist/async.js:4589:9)
  
  at Object.awaitable(waterfall) [as waterfall] (/srv/node_modules/async/dist/async.js:208:32)
  
  at FfmpegCommand.proto._checkCapabilities (/srv/node_modules/fluent-ffmpeg/lib/capabilities.js:565:11)
  
  at /srv/node_modules/fluent-ffmpeg/lib/processor.js:298:14

  I have used npm install to install both fluent-ffmpeg and ffmpeg-static yet it says it cannot find it ? Here’s my code :

  const ffmpeg = require('fluent-ffmpeg');
  
  const ffmpeg_static = require('ffmpeg-static');
  
  const {Storage} = require('@google-cloud/storage');
  
  const fs = require('fs');
  
  const os = require('os');
  
  var path = require('path');
  
  
  
  // Creates a client
  
  const storage = new Storage({
  
  projectId: 'projectID',
  
  });
  
  
  
  function promisifyCommand(command) {
  
  return new Promise((resolve, reject) => {
  
    command.on('end', resolve).on('error', reject).run();
  
  });
  
  }
  
  
  
  exports.updatePost = functions.storage.object().onFinalize(async (object) => {
  
  
  
  const fileBucket = object.bucket; // The Storage bucket that contains the file.
  
  const filePath = object.name; // File path in the bucket.
  
  const contentType = object.contentType; // File content type.
  
  const resourceState = object.resourceState; // The resourceState is 'exists' or 'not_exists' (for file/folder deletions).
  
  const metageneration = object.metageneration; // Number of times metadata has been generated. New objects have a value of 1.
  
  
  
  // Get file name
  
  const fileName = path.basename(filePath);
  
  
  
  // Exit if this is a move or deletaion event.
  
  if(resourceState === 'not_exists'){
  
      console.log('This is a deletion event');
  
      return;
  
  }
  
  
  
  // Download file from bucket
  
  const bucket = storage.bucket(fileBucket);
  
  const tempFilePath = path.join(os.tmpdir(), fileName)
  
  // We add a '_output.flac' suffix to target audio file name. That's where we'll upload the converted audio.
  
  const targetTempFileName = fileName.replace(/\.[^/.]+$/, "") + '_output.mp4';
  
  const targetTempFilePath = path.join(os.tmpdir(), targetTempFileName);
  
  const targetStorageFilePath = path.join(path.dirname(filePath), targetTempFileName);
  
  
  
  await bucket.file(filePath).download({destination: tempFilePath});
  
      console.log('Video downloaded locally to', tempFilePath);
  
      // Convert the video to suitable formats
  
      const command = ffmpeg(tempFilePath)
  
      .setFfmpegPath(ffmpeg_static.path)
  
      .withSize('50%')
  
      .toFormat('mp4')
  
      .output(targetTempFilePath);
  
      await promisifyCommand(command);
  
          console.log('New video created');
  
  
  
          //Upload video again
  
          await bucket.upload(targetTempFilePath, {destination: targetStorageFilePath});
  
              console.log('Output video uploaded to', targetStorageFilePath);
  
              // Delete the local file from server as it's been uploaded to storage
  
              fs.unlinkSync(tempFilePath);
  
              fs.unlinkSync(targetTempFilePath);
  
  
  
              console.log('Tempory files removed.', targetTempFilePath);
  
  });

  I have searched everywhere and people are also saying that running the ffmpeg module on the function will also exceed the limit very quickly and where told to use ffmpeg-static instead ?
  Thanks,

  Nathan