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• fluent-ffmpeg throw er when concatenate videos

  2 mai 2020, par Romualdo Arrechea Hernández

  I'm using fluent-ffmpeg version 2.1.2.
When I execute the current code the output show off a error message :

  



  var ffmpeg = require('fluent-ffmpeg');
var glob= require('glob');
ffmpeg.setFfmpegPath("/usr/bin/ffmpeg");
ffmpeg.setFfprobePath("/usr/bin/ffprobe");
var command = ffmpeg();

const path='/home/username/somefolder/*/output.mp4';

var videos=glob.sync(path);
var output="./output.mp4";
videos.map(video=>command.addInput(video));
command.mergeToFile(output);


  



  the console output>

  



  **events.js:287&#xA;      throw er; // Unhandled &#x27;error&#x27; event&#xA;      ^&#xA;&#xA;Error: ffmpeg exited with code 1: Conversion failed!&#xA;&#xA;    at ChildProcess.<anonymous> (/home/r/Projects/prueba/node_modules/fluent-ffmpeg/lib/processor.js:182:22)&#xA;    at ChildProcess.emit (events.js:310:20)&#xA;    at Process.ChildProcess._handle.onexit (internal/child_process.js:275:12)&#xA;Emitted &#x27;error&#x27; event on FfmpegCommand instance at:&#xA;    at emitEnd (/home/r/Projects/prueba/node_modules/fluent-ffmpeg/lib/processor.js:424:16)&#xA;    at endCB (/home/r/Projects/prueba/node_modules/fluent-ffmpeg/lib/processor.js:544:13)&#xA;    at handleExit (/home/r/Projects/prueba/node_modules/fluent-ffmpeg/lib/processor.js:170:11)&#xA;    at ChildProcess.<anonymous> (/home/r/Projects/prueba/node_modules/fluent-ffmpeg/lib/processor.js:182:11)&#xA;    at ChildProcess.emit (events.js:310:20)&#xA;    at Process.ChildProcess._handle.onexit (internal/child_process.js:275:12)**&#xA;</anonymous></anonymous>

  



  The video should be created, but it's unable to concat. Some clue ?

  


• Undefined method reference external library

  22 novembre 2014, par Pablo Gaviria

  I’m trying to use the FFmpeg/libavcodec to decode and encode some MP3 files using C and GCC compiler.

  According to the library documentation I must initialize the library with the follow sourcecode but I’m still getting this error :

  /tmp/cc2uLQ1v.o: On function `main':
  
  codigo.c:(.text+0x7): reference to `avcodec_register_all' undefined
  
  collect2: error: ld returned 1 exit status

  Here’s the source code :

  #include 
  
  
  
  
  
  #include <libavutil></libavutil>opt.h>
  
  #include <libavcodec></libavcodec>avcodec.h>
  
  #include <libavutil></libavutil>channel_layout.h>
  
  #include <libavutil></libavutil>common.h>
  
  #include <libavutil></libavutil>imgutils.h>
  
  #include <libavutil></libavutil>mathematics.h>
  
  #include <libavutil></libavutil>samplefmt.h>
  
  
  
  #define INBUF_SIZE 4096
  
  #define AUDIO_INBUF_SIZE 20480
  
  #define AUDIO_REFILL_THRESH 4096
  
  
  
  
  
  
  
  int main(int argc, char *argv[])
  
  {
  
     avcodec_register_all();
  
  
  
  
  
      return 0;
  
  }

  And this the command that I’m using to compile under GCC

  gcc -I /root/ffmpeg_sources/ffmpeg -o codigo codigo.c

• ruby on rails carrierwave-video ffmpeg AWS

  11 mars 2015, par Joseph Han Nim Jang

  I am trying to create an academic site where users can upload lecture videos and other users can view them - similar to a site like Udemy.

  I am using Carrierwave, Carrierwave-video (for encoding videos), AWS to make this happen. AWS configuration has been done, and it’s working.

  However, I am getting this error. (By the way, I am testing this video feature in a Yelpdemo site, so I am trying to have users upload videos to restaurants for now.)

  rails points the error to @restaurant = Restaurant.new(restaurant_params)

  Errno::ENOENT in RestaurantsController#create

  No such file or directory - ffmpeg

  # POST /restaurants.json
  def create
  @restaurant = Restaurant.new(restaurant_params)

  respond_to do |format|
  
    if @restaurant.save

  This is my video_uploader.rb

  # encoding: utf-8
  
  
  
  class VideoUploader < CarrierWave::Uploader::Base
  
  
  
    include CarrierWave::Video
  
    include CarrierWave::Video::Thumbnailer
  
  
  
    process encode_video: [:mp4]
  
  
  
    include CarrierWave::MiniMagick
  
  
  
    storage :fog
  
  
  
    def store_dir
  
      "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  
    end
  
  
  
     version :thumb do
  
        process thumbnail: [{format: 'png', quality: 10, size: 192, strip: true, logger: Rails.logger}]
  
        def full_filename for_file
  
          png_name for_file, version_name
  
        end
  
    end
  
  
  
      def png_name for_file, version_name
  
        %Q{#{version_name}_#{for_file.chomp(File.extname(for_file))}.png}
  
      end
  
  end

  I have manually (added a file to the model) created video.rb in the model - not sure if this is the right way to do it..

  class Video < ActiveRecord::Base
  
  
  
    attr_accessor :user_id, :video,, :type, :filename, :path, :filesize, :width, :height, :duration, :bit_rate
  
  
  
    belongs_to :restaurant
  
    belongs_to :user
  
  
  
    mount_uploader :video, VideoUploader
  
  end

  in app/views/restaurants/show.html.erb for showing the video. Right now, without the encoding done, I can see like an image of the video. When I right lick and copy the code - it gives me the AWS URL which means AWS configuration is in place

          <p>
  
              <strong>Video:</strong>
  
              &lt;%= video_tag @restaurant.video_url %>
  
          </p>

  I am trying to show videos like this.

  I have downloaded FFMPEG (both ffmpeg-2.6 and SnowLeopard_Lion_Mountain_Yosemite_17) - not sure which one’s the right one.. And I have read somewhere that you need to place FFMPEG in your usr/local/bin -> So do you have to physically place ffmpeg exec file in your respective folder ?

  Need your expert help please.

  Thank you in advance !