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• Anomalie #4128 : Bug de génération de boucle avec les modèles Spip

  11 avril 2018, par b b

  Un truc que je ne comprends pas, c’est que tu signales dans les points 7 & 8 que "Cela fonctionne sur la version minimal mais pas sur la version production." & "Le bug n’apparait plus..". Tu as donc trouvé l’origine du problème ou non ?

• How to merge audio with image using transloadit api by passing the input files from http url ?

  23 septembre 2016, par maniempire

  I want to merge audio with image. I tried the transloadit api and using their documentation, i used ruby sdk to implement that. But, when i try to send both the input via http url, i am facing the ffmpeg issue as like below.

  ffmpeg version 2.2.3-transloadit-static-v2.2.3 Copyright (c) 2000-2014 the FFmpeg developers 
  
  built on Jun 3 2014 14:36:03 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5) 
  
  configuration: --disable-devices --disable-doc --disable-ffplay --disable-ffserver --disable-shared --enable-bzlib --enable-gpl --enable-gray --enable-libass --enable-libfaac --enable-libfdk_aac --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-nonfree --enable-postproc --enable-pthreads --enable-runtime-cpudetect --enable-static --enable-version3 --enable-zlib --extra-cflags='-I/usr/src/ffmpeg-static/target/include -static' --extra-cflags=--static --extra-ldflags='-L/usr/src/ffmpeg-static/target/lib -lm -lopus -static' --extra-libs='-lfontconfig -lfreetype -lexpat -lpng -lfribidi -xml2' --extra-version=transloadit-static-v2.2.3 --prefix=/usr/src/ffmpeg-static/target 
  
  libavutil 52. 66.100 / 52. 66.100 
  
  libavcodec 55. 52.102 / 55. 52.102 
  
  libavformat 55. 33.100 / 55. 33.100 
  
  libavdevice 55. 10.100 / 55. 10.100 
  
  libavfilter 4. 2.100 / 4. 2.100 
  
  libswscale 2. 5.102 / 2. 5.102 
  
  libswresample 0. 18.100 / 0. 18.100 
  
  libpostproc 52. 3.100 / 52. 3.100 
  
  Input #0, image2, from '/srv/shared/tmp/scratch/c392b5407fec11e68fdddd7bd9e2f0db/image_%05d.jpg': 
  
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A 
  
  Stream #0:0: Video: mjpeg, yuvj420p(pc), 1680x1050 [SAR 1:1 DAR 8:5], 25 fps, 25 tbr, 25 tbn, 25 tbc 
  
  [mp3 @ 0x3840540] Format mp3 detected only with low score of 24, misdetection possible! 
  
  [mp3 @ 0x3840540] Estimating duration from bitrate, this may be inaccurate 
  
  Input #1, mp3, from '/srv/shared/tmp/download/bd69dd607fec11e6b6f5a5d0952706af_be1eae707fec11e687b473f9b8ddf7ef.mp3':
  
  Metadata: 
  
  encoded_by : iTunes 10.2.1 
  
  artist : James Delay 
  
  title : Rewinder 
  
  Duration: 00:04:53.94, start: 0.000000, bitrate: 319 kb/s 
  
  Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16p, 320 kb/s 
  
  Stream #1:1: Video: mjpeg, yuvj422p(pc), 3000x2000, 90k tbr, 90k tbn, 90k tbc 
  
  Metadata: 
  
  title : 
  
  comment : Other 
  
  [swscaler @ 0x381c7e0] deprecated pixel format used, make sure you did set range correctly 
  
  [Parsed_pad_1 @ 0x383db60] Negative values are not acceptable. 
  
  [Parsed_scale_0 @ 0x383fbe0] Failed to configure input pad on Parsed_pad_1 
  
  Error opening filters! 
  
  Conversion failed!

  If i upload an audio file, the issue is not there. If i pass the audio file as a http url, i am getting this error.The sample ruby method i used for this conversion is given below.

  def merge_image_with_audio
  
      # gem install transloadit
  
      transloadit = Transloadit.new(
  
        :key    => '....',
  
        :secret => '....'
  
      )
  
  
  
      imported_audio = transloadit.step 'imported_audio', '/http/import', :url => "...."
  
  
  
      imported_image = transloadit.step 'imported_image', '/http/import', :url => "..."
  
  
  
      merger = transloadit.step 'merger', '/video/merge',
  
        :use => {"steps":[{"name":"imported_audio","as":"audio"},{"name":"imported_image","as":"image"}]},
  
        :result => true,
  
        :ffmpeg_stack => "v2.2.3",
  
        :preset => "ipad-high",
  
        :resize_strategy => "pad"
  
  
  
      assembly = transloadit.assembly(
  
        :steps => [ imported_audio, imported_image, merger ]
  
      )
  
  
  
      response = assembly.submit!
  
      until response.finished?
  
        sleep 1; response.reload!
  
      end
  
  
  
      if !response.error?
  
        puts response
  
       # handle success
  
      else
  
       puts response
  
      end
  
  
  
    end

  Even though i am able to do the conversion directly via ffmpeg using this thread, i want to separate this process to a 3rd party so that there will not be any load to the server for the conversion process. Any suggestions or solutions in this regard is highly appreciated.
  Thanks.

• Ffmpeg - Incorrect codec parameters

  29 avril 2015, par DevPM

  I always got the following error, when trying to connect ffmpeg with ffserver :

  But let’s start with the theory :
  I want to Broadcast a stream, which is already existing in the internet (to able to do some analytic stuff on the stream).
  So my idea is as follows :
  i have one ubuntu-server (currently ubuntu-desktop version 12.x on a virtual machine, i will change it to a real server later...).
  and i want to run on the server :
   ffmpeg, which should record the live-stream (and saves it locally)
   ffserver, for broadcasting the same live-stream, using the rtp protocoll (because of the timestamp-header in the protocoll).
  so if i understoot the documentation correctly, this is my idea :
  - start ffserver from linux-terminal
  (ffserver -f ~/Desktop/ffserver.conf)
  - start ffmpeg and connect to the feed of ffserver
  (ffmpeg -re -i "http://InternetStreamer.sdp/playlist.m3u8" -vcodec libx264 -s 320x240 -pix_fmt yuv420p -vb 200000 -minrate 200000 -maxrate 200000 -bufsize 2000000 -acodec libmp3lame -ab 128k -ar 44100 -f rtp -an http://localhost:8090/feed1.ffm)
  (I am getting the Stream from the URL "http://InternetStreamer.sdp/playlist.m3u8" and want sent it to ffserver(also i want to save it locally for backup later...))

  now when i start ffmpeg i get the following error :
  Could not write header for output file #0 (incorrect codec parameters ?)

  Last thing to say is that is very important to broadcast the stream with RTP-Protocoll. (Best case would be directly from ffmpeg, because then the RTP-headers are as set as early as possible)

  my server.conf looks like follows :

  Port 8090
  
  BindAddress 0.0.0.0
  
  MaxHTTPConnections 2000
  
  MaxClients 1000
  
  MaxBandwidth 1000
  
  CustomLog -
  
  NoDaemon
  
  <feed>
  
  #file ffmpeg http://localhost:8090/feed1.ffm
  
  #Format rtp
  
  #File /tmp/feed1.ffm
  
  #FileMaxSize 200K
  
  File /tmp/cam1.ffm
  
  ACL allow 127.0.0.1
  
  #VideoFrameRate  25
  
  </feed>
  
  <stream>
  
  Feed feed1.ffm
  
  Format rtp
  
  #VideoFrameRate  25
  
  #Hier: alle parameter von ffmpeg angeben!
  
  #-re -i "http://apasfiisl.apa.at/ipad/orf2_q4a/orf.sdp/playlist.m3u8" 
  
  #-vcodec libx264 
  
  #-s 320x240 
  
  #-pix_fmt yuv420p 
  
  #-vb 200000 
  
  #-minrate 200000 
  
  #-maxrate 200000 
  
  #-bufsize 2000000 
  
  #-acodec libmp3lame 
  
  #-ab 128k 
  
  #-ar 44100 
  
  #AudioBitRate 32
  
  #AudioChannels 1
  
  #AudioSampleRate 44100
  
  #VideoBitRate 64
  
  #VideoBufferSize 40
  
  VideoFrameRate 3
  
  #VideoSize 160x128
  
  #VideoGopSize 12
  
  </stream>
  
  
  
  ##################################################################
  
  # Special streams
  
  # Server status
  
  <stream>
  
  Format status
  
  
  
  # Only allow local people to get the status
  
  ACL allow localhost
  
  ACL allow 192.168.0.0 192.168.255.255
  
  
  
  #FaviconURL http://pond1.gladstonefamily.net:8080/favicon.ico
  
  </stream>
  
  
  
  # Redirect index.html to the appropriate sites
  
  <redirect>
  
  URL http://www.ffmpeg.org/
  
  </redirect>

  ####################################################################
  This is the full console output from ffmpeg :
  ####################################################################

   The ffmpeg program is only provided for script compatibility and will be removed
  
  in a future release. It has been deprecated in the Libav project to allow for
  
  incompatible command line syntax improvements in its replacement called avconv
  
  (see Changelog for details). Please use avconv instead.
  
  [applehttp @ 0x91fa240] max_analyze_duration reached
  
  [applehttp @ 0x91fa240] Estimating duration from bitrate, this may be inaccurate
  
  
  
  Seems stream 1 codec frame rate differs from container frame rate: 180000.00 (180000/1) -> 25.00 (25/1)
  
  Input #0, applehttp, from 'http://InternetStreamer.sdp/playlist.m3u8':
  
    Duration: N/A, start: 61442.038956, bitrate: N/A
  
      Stream #0.0: Data: [21][0][0][0] / 0x0015
  
      Metadata:
  
        variant_bitrate : 831114
  
      Stream #0.1: Video: h264 (Main), yuvj420p, 640x360 [PAR 1:1 DAR 16:9], 25 tbr, 90k tbn, 180k tbc
  
      Metadata:
  
        variant_bitrate : 831114
  
      Stream #0.2: Audio: aac, 44100 Hz, stereo, s16
  
      Metadata:
  
        variant_bitrate : 831114
  
  [buffer @ 0x9215720] w:640 h:360 pixfmt:yuvj420p
  
  [scale @ 0x9434300] w:640 h:360 fmt:yuvj420p -> w:320 h:240 fmt:yuv420p flags:0x4
  
  [libx264 @ 0x923a560] using SAR=4/3
  
  [libx264 @ 0x923a560] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
  
  [libx264 @ 0x923a560] profile Main, level 1.3
  
  Output #0, rtp, to 'http://localhost:8090/feed1.ffm':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #0.0: Video: libx264, yuv420p, 320x240 [PAR 4:3 DAR 16:9], q=-1--1, 200 kb/s, 90k tbn, 25 tbc
  
      Metadata:
  
        variant_bitrate : 831114
  
  Stream mapping:
  
    Stream #0.1 -> #0.0
  
  Could not write header for output file #0 (incorrect codec parameters ?)

  Kind Regards
  DevPM