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• ffmpeg: Invalid data found when processing input

  20 September 2018, by Rich_F

  I have a situation where ffmpeg is throwing an error:

  Invalid data found when processing input

  I’ve reviewed other answers here, but my situation is different. I generate in Ruby, a text file with a list of input files I want to concatenate together into one large video.

  I generate in Ruby, the command meant for bash, which is also output for me to manually copy:

  ffmpeg -y -f concat -safe 0 -i /Volumes/Dragon2/Yums/randoms.txt /Volumes/Dragon2/Yums/final.mp4

  Throws an error:

  /Volumes/Dragon2/Yums/randoms.txt: Invalid data found when processing input

  Here is that file:

  file '/Volumes/Dragon2/Yums/0CEDC3CA-4571-4271-9938-A161EC2A887B.mov'
  
  file '/Volumes/Dragon2/Yums/0D25D907-D053-443B-AFC6-9F12B1711BBF.mov'
  
  file '/Volumes/Dragon2/Yums/6A272808-7706-435D-801E-ACE6B42EC749.mov'
  
  file '/Volumes/Dragon2/Yums/6E9BA2F1-C5E7-4C1C-B290-D116105732FA.mov'
  
  file '/Volumes/Dragon2/Yums/0A41C7B7-74CE-484E-B029-3AE57B8BB4EA.mov'

  When bash runs it, it complains about the input file randoms.txt having invalid data. When I copy and paste the very same command in bash, it works fine. I’m stumped as to how the two are different and why ffmpeg is not happy when initiated in the shell.

  How can I get this to work? What am I missing? Cheers

  EDIT: Original ruby code:

  `clear`
  
  require 'pathname'
  
  require 'pp'
  
  
  
  s = '/Volumes/Dragon2/Yums'
  
  files = []
  
  
  
  Dir.foreach(s) do |path|
  
    files << "#{ s }/#{ path }"  
  
  end
  
  
  
  result = files.sample(files.size)           # randomizer
  
  
  
  f = File.open("#{ s }/randoms.txt", 'w+')
  
  result.each_with_index do |item, i|
  
    pp "#{ i }: #{ item }" if item.include?('mov')
  
    f << "file '#{ item }'\n" if item.include?('mov')
  
  end
  
  
  
  `echo `
  
  
  
  File.delete("#{ s }/final.mp4") if File.exists?("#{ s }/final.mp4")
  
  s = "ffmpeg -y -f concat -safe 0 -i #{ s }/randoms.txt #{ s }/final.mp4"
  
  puts s
  
  
  
  sleep 3
  
  `#{ s }`

  I have also tried system s as well with the same error. The syntax is generated fine, output fine, operates fine manually.

• FFMPEG - aws console issue

  1 December 2018, by Pramod Gehlot

  I have created aws lambda function and run on aws console but got an error

  Error: spawn EACCES
  
  at _errnoException (util.js:1022:11)
  
  at ChildProcess.spawn (internal/child_process.js:323:11)
  
  at exports.spawn (child_process.js:502:9)
  
  at Timeout.setTimeout [as _onTimeout] (/var/task/handler.js:23:22)
  
  at ontimeout (timers.js:482:11)
  
  at tryOnTimeout (timers.js:317:5)
  
  at Timer.listOnTimeout (timers.js:277:5)

  I have set alrady process.env[’PATH’] like below this

   process.env['PATH'] = process.env['PATH'] + ':/tmp/:'  +
  
   process.env['LAMBDA_TASK_ROOT'] +
  
   ':' + process.env['LAMBDA_TASK_ROOT'] + '/bin' +
  
   ':' + process.env['LAMBDA_TASK_ROOT'] + '/lib';

  i am using ffmpeg binary which is available in bin folder so i want to access ffmpeg on aws linux machine.
  my code folder structure like

  

• Re-encode and stream UDP TV Channels

  12 December 2018, by Tomy137

  I used from long time mumudvb and one dvb-t pci card to stream TV channels on my network. This is working fine but I’ve recently add another player that is less powerfull than others so I want to re-encode the video stream.

  This is my input stream video :

  Input #0, mpegts, from 'udp://@239.1.4.1:8200':
  
    Duration: N/A, start: 53843.533922, bitrate: N/A
  
    Program 1025 
  
      Metadata:
  
        service_name    : M6
  
        service_provider: Multi4
  
      Stream #0:0[0x78]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709), 1920x1080 [   SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Stream #0:1[0x82](fra): Audio: eac3 ([6][0][0][0] / 0x0006), 48000 Hz, 5.1(side), fltp, 192 kb/s
  
      Stream #0:2[0x83](qad): Audio: eac3 ([6][0][0][0] / 0x0006), 48000 Hz, stereo, fltp, 96 kb/s
  
      Stream #0:3[0x84](qaa): Audio: eac3 ([6][0][0][0] / 0x0006), 48000 Hz, stereo, fltp, 128 kb/s
  
      Stream #0:4[0x8c](fra): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006) (hearing impaired)
  
      Stream #0:5[0x8d](fra): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
  
      Stream #0:6[0xaa]: Unknown: none ([5][0][0][0] / 0x0005)
  
      Stream #0:7[0xab]: Unknown: none ([11][0][0][0] / 0x000B)

  ffmpeg version 3.0.1
  Running on Ubuntu 12.04.5 LTS

  And this is my command line to run ffmpeg :

  ffmpeg -i udp://@239.1.4.1:8200 -qscale:v:0 7 -c:v:0 mpeg4 -b:v:0 4000k -minrate:v 0 -maxrate:v 4000k -bufsize:v 5000k -s hd720 -c:a copy -f mpegts udp://239.1.24.1:8200?pkt_size=1316

  But when I do this, I’ve got errors like this on my VLC player :

  [00007f2ff3ad64c0] main audio output debug: inserting 35549 zeroes
  
  [00007f2ff3ad64c0] main audio output warning: playback too early (-55552): down-sampling
  
  [00007f2ff3adc4c0] xcb vout display debug: display is visible
  
  [00007f2ff3ad64c0] main audio output debug: resampling stopped (drift: -13228 us)
  
  [00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 33 ms)
  
  [00007f300dd870c0] main video output debug: picture might be displayed late (missing 2 ms)
  
  [00007f300dd870c0] main video output debug: picture might be displayed late (missing 4 ms)
  
  [00007f300dd870c0] main video output debug: picture might be displayed late (missing 0 ms)
  
  [00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 22 ms)
  
  [00007f2ff3ad64c0] main audio output warning: playback too early (-40559): down-sampling
  
  [00007f300dd870c0] main video output debug: picture might be displayed late (missing 8 ms)
  
  [00007f300dd870c0] main video output debug: picture might be displayed late (missing 13 ms)
  
  [00007f300dd870c0] main video output debug: picture might be displayed late (missing 3 ms)
  
  [00007f300dd870c0] main video output debug: picture might be displayed late (missing 3 ms)
  
  [00007f2ff3ad64c0] main audio output debug: resampling stopped (drift: 1666 us)
  
  [00007f2ff3ad64c0] main audio output warning: playback way too early (-130510): playing silence
  
  [00007f2ff3ad64c0] main audio output debug: inserting 6264 zeroes
  
  [00007f300dd870c0] main video output debug: picture might be displayed late (missing 13 ms)
  
  [00007f300dd870c0] main video output debug: picture might be displayed late (missing 15 ms)
  
  [00007f2ff3ad64c0] main audio output warning: playback too early (-41304): down-sampling
  
  [00007f300dd870c0] main video output debug: picture might be displayed late (missing 10 ms)
  
  [00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 54 ms)
  
  [00007f300dd870c0] main video output debug: picture might be displayed late (missing 15 ms)
  
  [00007f2ff3ad64c0] main audio output warning: timing screwed (drift: -105734 us): stopping resampling
  
  [00007f2ff3ad64c0] main audio output warning: playback too early (-105702): down-sampling
  
  [00007f300dd870c0] main video output debug: picture might be displayed late (missing 10 ms)
  
  [00007f300dd870c0] main video output debug: picture might be displayed late (missing 10 ms)
  
  [00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 60 ms)
  
  [00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 20 ms)
  
  [00007f300dd870c0] main video output debug: picture might be displayed late (missing 14 ms)
  
  [00007f300dd870c0] main video output debug: picture might be displayed late (missing 13 ms)
  
  [00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 61 ms)
  
  [00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 25 ms)
  
  [00007f2ff3ad64c0] main audio output debug: resampling stopped (drift: -40141 us)
  
  [00007f2ff3ad64c0] main audio output warning: playback too early (-40140): down-sampling
  
  [00007f2ff3ad64c0] main audio output warning: playback too late (91622): up-sampling
  
  [00007f2ff3ad64c0] main audio output debug: resampling stopped (drift: 120767 us)
  
  [00007f2ff3ad64c0] main audio output warning: playback too late (120781): up-sampling
  
  [00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 64 ms)
  
  [00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 25 ms)
  
  [00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 31 ms)

  On web-plugin VLC media player - 3.0.3 Vetinari running on Ubuntu 16.04.3 LTS

  This is resulting on many glitch on VLC video and after some times audio and video become de-synchronised.

  For some reasons, I can’t update VLC / FFMPEG / Ubuntu

  Can you help me with that ?

  Thanks in advance for your time !