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• Google - Shaka | Deleting SegmentTimeline in manifest.mpd after restart container

  27 juin 2022, par burakkiymaz

  Shaka is running inside docker container. When I restarted container, SegmentTimeline part in manifest.mpd file deleting. Is possible appending old SegmentTimeline to new manifest.mpd file or recover it when I restarted ?

  


  Operating System :

  


  NAME="CentOS Linux"
VERSION="7 (Core)"


  


  Shaka Packager Version :

  


  google/shaka-packager:v2.5.1


  


  You can find out my configuration file below :

  


  CH_PATH=/some/path/$CH_NAME

/usr/bin/packager \
        'in=udp://127.0.0.1:'$PORT',stream=audio,init_segment='$CH_PATH'/audio_init.m4s,segment_template='$CH_PATH'/audio_$Time$.m4s' \
        'in=udp://127.0.0.1:'$PORT',stream=video,init_segment='$CH_PATH'/h264_360p_init.m4s,segment_template='$CH_PATH'/h264_360p_$Time$.m4s' \
        'in=udp://127.0.0.1:'$(($PORT + 1))',stream=video,init_segment='$CH_PATH'/h264_540p_init.m4s,segment_template='$CH_PATH'/h264_540p_$Time$.m4s' \
        'in=udp://127.0.0.1:'$(($PORT + 2))',stream=video,init_segment='$CH_PATH'/h264_720p_init.m4s,segment_template='$CH_PATH'/h264_720p_$Time$.m4s' \
        'in=udp://127.0.0.1:'$(($PORT + 3))',stream=video,init_segment='$CH_PATH'/h264_1080p_init.m4s,segment_template='$CH_PATH'/h264_1080p_$Time$.m4s' \
        --enable_widevine_encryption \
        --key_server_url ************ \
        --content_id ********** \
        --signer ********** \
        --aes_signing_key ************ \
        --aes_signing_iv ************* \
        --mpd_output $CH_PATH/manifest.mpd \
        --hls_playlist_type LIVE \
        --hls_master_playlist_output $CH_PATH/mn.m3u8 \
        --time_shift_buffer_depth 43200 \
        --preserved_segments_outside_live_window 43200


  


• Google AppEngine flex as a transcoder [closed]

  6 septembre 2021, par jACK

  Situation :

  


  

  • A Nodejs/Express application running on appengine flex.

  


  • Using FFmpeg to cut videos, and merge different types of videos. 1080p 30fps videos, merged video duration usually around 8 hours.

  


  • Need for a massive amout of processing power for those edits.

  


  • The express server needs to be reachable 24/7 & flex is incredibly expensive if run on a 24/7 basis.

  


  


  Goal :

  


  

  • To have a cost efficient ffmpeg transcoder on a private enviroment =>

  


  • Flex instance as a maximum spec, but as its idle reduce the price significantly.

  


  


  Or is this a situation where a redesign is imminent ? eg. Compute Engine

  


  Tried approach

  


  

  • B8 Standard instance => Since the payload is pretty big, its causing the B8 instance to crash.

  


  


  Thanks.

  


• ERROR : "Cannot Find FFMPEG" on Google Cloud Compute Engine Debian Wheezy 7.8 Managed Instance even though it's installed

  17 mai 2021, par DynamoBooster

  I wrote a Node.JS application that uses the fluent-ffmpeg module to watermark videos uploaded on the platform. I pushed the code to a my Google Cloud Compute Engine project, and every time I get Error : Cannot Find FFMPEG. I ssh'd into the instance once it was created and ran these commands to install FFMPEG before actually testing out the code. I am not sure what is causing the error because after this I am positive that FFMPEG is installed.

  



  sudo apt-get update
sudo apt-get install -y ffmpeg
export FFMPEG_PATH="/usr/bin/ffmpeg"
export FFPROBE_PATH="/usr/bin/ffprobe"


  



  Below is my FFMPEG code

  



  function generate_thumbnail(name, path){
  logging.info("Generating Thumbnail");
  ffmpeg(path)
   .setFfmpegPath('/usr/bin/ffmpeg') 
   .setFfprobePath('/usr/bin/ffprobe')
   .on('end', function() {
        upload_thumbnail(name);
        logging.info("Thumbnail Generated and uploaded");
        return;
    })
  .on('error', function(err, stdout, stderr) {
        logging.info('ERROR: ' + err.message);
        logging.info('STDERR:' + stderr);
  })
  .on('start', function(commandLine) {
       logging.info(commandLine);
  })
  .screenshots({
    count: 1,
    filename: name + '_thumbnail.png',
    folder: 'public/images/thumbnails/'
  });
}