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• bigbluebutton ...

  7 mars 2015, par signo

  ---

  Hello i have a BigBlueButton (0.9.0-beta (622)) installation on Debian Wheezy (7.8) all is ok except archiving recordings...

  in the log (/var/log/bigbluebutton/archive-488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.log) i have always same message :

  I, [2015-03-06T11:48:19.320704 #4550]  INFO -- : Archiving events for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.
  
  W, [2015-03-06T11:48:19.851280 #4550]  WARN -- : Failed to archive events for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675. Permission denied - /var/bigbluebutton/recording/raw/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/events.xml (complete error below...)

  but all directory are writable by right user (tomcat7).

  More Info :

  bbb packages installed

  ii  bbb-apps                              0.9.0-1ubuntu88               amd64        BigBlueButton applications for Red5
  
  ii  bbb-apps-deskshare                    0.9.0-1ubuntu25               amd64        BigBlueButton deskshare module for Red5
  
  ii  bbb-apps-sip                          0.9.0-1ubuntu19               amd64        BigBlueButton SIP module for Red5
  
  ii  bbb-apps-video                        0.9.0-1ubuntu18               amd64        BigBlueButton video module for Red5
  
  ii  bbb-client                            0.9.0-1ubuntu235              all          BigBlueButton Flash client
  
  ii  bbb-config                            0.9.0-1ubuntu42               all          BigBlueButton configuration
  
  rc  bbb-demo                              0.9.0-1ubuntu8                amd64        BigBlueButton API demos
  
  ii  bbb-freeswitch                        0.9.0-1ubuntu38               amd64        BigBlueButton build of FreeSWITCH 1.5.x
  
  ii  bbb-mkclean                           0.8.7-1                       amd64        tool to clean and optimize Matroska and WebM files
  
  ii  bbb-office                            0.9.0-1ubuntu6                amd64        BigBlueButton wrapper for LibreOffice
  
  ii  bbb-playback-presentation             0.9.0-1ubuntu11               amd64        BigBluebutton playback of presentation
  
  ii  bbb-record-core                       0.9.0-1ubuntu37               amd64        BigBlueButton record and playback
  
  ii  bbb-red5                              0.9.0-1ubuntu25               amd64        The Red5 server for bbb
  
  ii  bbb-swftools                          0.9.2-1ubuntu14               amd64        The swftools files for bbb
  
  ii  bbb-web                               0.9.0-1ubuntu54               all          BigBlueButton API
  
  ii  bigbluebutton                         0.9.0-1ubuntu2                amd64        Open source web conferencing platform (bbb)

  ---

  bbb-conf —check

  BigBlueButton Server 0.9.0-beta (622)
  
                      Kernel version: 3.16.0-4-amd64(64-bit)
  
                              Memory: 12044 MB
  
  
  
  /var/www/bigbluebutton/client/conf/config.xml (bbb-client)
  
          Port test (tunnel): 2xx.xxx.xxx.xx
  
                                Red5: 2xx.xxx.xxx.xx
  
                useWebrtcIfAvailable: true
  
  
  
  /opt/freeswitch/conf/sip_profiles/external.xml (FreeSWITCH)
  
                      websocket port: 5066
  
                      WebRTC enabled: true
  
  
  
  /etc/nginx/sites-available/bigbluebutton (nginx)
  
                         server name: 2xx.xxx.xxx.xx
  
                                port: 80
  
                      bbb-client dir: /var/www/bigbluebutton
  
  
  
  /var/lib/tomcat7/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties (bbb-web)
  
                        bbb-web host: 2xx.xxx.xxx.xx
  
  
  
  /usr/share/red5/webapps/bigbluebutton/WEB-INF/red5-web.xml (red5)
  
                    voice conference: FreeSWITCH
  
                       capture video: true
  
                     capture desktop: true
  
  
  
  /usr/local/bigbluebutton/core/scripts/bigbluebutton.yml (record and playback)
  
                       playback host: 2xx.xxx.xxx.xx
  
  
  
  
  
  * Potential problems described below **
  
      # IP does not match:
  
      #                           IP from ifconfig: 172.xx.xxx.xx
  
      #   /etc/nginx/sites-available/bigbluebutton: 2xx.xxx.xxx.xx
  
      # Error: Unable to connect to port 1935 (RTMP) 2xx.xxx.xxx.xx
  
  
  
      # Error: Unable to connect to port 9123 (desktop sharing) on 212.xxx.xxx.xx

  ---

  ls -l /var/freeswitch/meetings/

  -rw-r--r-- 1 freeswitch daemon 5139984 Mar  6 11:44 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675-81976383.wav

  ---

  ls -l /usr/share/red5/webapps/video/streams/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/

  -rw-rw-r-- 1 red5 red5 438342 Mar  6 11:44 320x240-cztd6nyzasaz_1-1425642114164.flv

  ---

  ls -l /usr/share/red5/webapps/video/streams/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/

  -rw-rw-r-- 1 red5 red5 438342 Mar  6 11:44 320x240-cztd6nyzasaz_1-1425642114164.flv

  ---

  cat /usr/share/red5/webapps/video/WEB-INF/red5-web.xml

  <bean class="org.bigbluebutton.app.video.VideoApplication">
  
          <property value="true"></property>
  
          <property ref="redisRecorder"></property>
  
  </bean>

  ---

  cat /usr/share/red5/webapps/deskshare/WEB-INF/red5-web.xml

   <bean class="org.bigbluebutton.deskshare.server.stream.StreamManager">
  
      
  
      
  
   </bean>

  ---

  bbb-record —watch

  Every 2.0s: bbb-record --list20                                                                                                                                   Fri Mar  6 11:53:58 2015
  
  
  
  Internal MeetingID                                               Time                APVD APVDE RAS Slides Processed            Published           External MeetingID
  
  ------------------------------------------------------  ---------------------------- ---- ----- --- ------ -------------------- ------------------  -------------------
  
  57d9849193299cebe9409d1c98d175958331d34a-1425642748807  Fri 6 Mar 11:52:28 GMT 2015   X                  5
  
  488052dc7c095c74bf8992ec51a66298db04b765-1425642166675  Fri 6 Mar 11:42:46 GMT 2015  XXX         X       6

  ---

  bbb-record —debug

  E, [2015-03-06T11:48:20.335578 #4548] ERROR -- : Sanity check failed on 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675

  ---

  cat /var/log/bigbluebutton/archive-488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.log

  # Logfile created on 2015-03-06 11:48:19 +0000 by logger.rb/31641
  
  I, [2015-03-06T11:48:19.320704 #4550]  INFO -- : Archiving events for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.
  
  W, [2015-03-06T11:48:19.851280 #4550]  WARN -- : Failed to archive events for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675. Permission denied - /var/bigbluebutton/recording/raw/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/events.xml
  
  I, [2015-03-06T11:48:19.851428 #4550]  INFO -- : Fetching the recording marks for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.
  
  I, [2015-03-06T11:48:19.851501 #4550]  INFO -- : Getting record status events
  
  W, [2015-03-06T11:48:19.851585 #4550]  WARN -- : Failed to fetch the recording marks for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675. Permission denied - /var/bigbluebutton/recording/raw/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/events.xml
  
  I, [2015-03-06T11:48:19.851645 #4550]  INFO -- : Archiving audio /var/freeswitch/meetings/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675*.wav.
  
  W, [2015-03-06T11:48:19.851920 #4550]  WARN -- : Failed to archive audio for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675. Permission denied - /var/bigbluebutton/recording/raw/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/audio
  
  I, [2015-03-06T11:48:19.851981 #4550]  INFO -- : Archiving presentation for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.
  
  W, [2015-03-06T11:48:19.852257 #4550]  WARN -- : Failed to archive presentations for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675. Permission denied - /var/bigbluebutton/recording/raw/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/presentation
  
  I, [2015-03-06T11:48:19.852322 #4550]  INFO -- : Archiving deskshare for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.
  
  W, [2015-03-06T11:48:19.852561 #4550]  WARN -- : Failed to archive deskshare for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675. Permission denied - /var/bigbluebutton/recording/raw/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/deskshare
  
  I, [2015-03-06T11:48:19.852620 #4550]  INFO -- : Archiving video for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.
  
  W, [2015-03-06T11:48:19.852834 #4550]  WARN -- : Failed to archive video for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675. Permission denied - /var/bigbluebutton/recording/raw/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/video

  ---

  all folder under /var/bigbluebutton/ have same rights (drwxrwxrwx tomcat7 tomcat7)

  ls -l /var/bigbluebutton/

  total 40
  
  drwxr-xr-x 3 tomcat7 tomcat7 4096 Mar  6 11:42 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675
  
  drwxr-xr-x 3 tomcat7 tomcat7 4096 Mar  6 11:52 57d9849193299cebe9409d1c98d175958331d34a-1425642748807
  
  drwxrwxrwx 2 tomcat7 tomcat7 4096 Mar  3 15:52 blank
  
  drwxrwxrwx 2 tomcat7 tomcat7 4096 Feb 17 17:17 configs
  
  drwxrwxrwx 2 tomcat7 tomcat7 4096 Mar  3 15:57 deskshare
  
  drwxrwxrwx 2 tomcat7 tomcat7 4096 Mar  3 15:57 meetings
  
  drwxrwxrwx 3 tomcat7 tomcat7 4096 Mar  3 15:52 playback
  
  drwxrwxrwx 3 tomcat7 tomcat7 4096 Mar  3 15:57 published
  
  drwxrwxrwx 6 tomcat7 tomcat7 4096 Mar  3 15:57 recording
  
  drwxrwxrwx 2 tomcat7 tomcat7 4096 Mar  3 15:57 unpublished

  ---

• hw_base_encode : make recon_frames_ref optional

  30 août 2024, par Lynne

  hw_base_encode : make recon_frames_ref optional
  Vulkan supports some stupidly odd hardware, that unfortunately,
  
  most modern GPUs happen to be.
  
  The DPB images for encoders may be required to be preallocated
  
  all at once, and rather than be individual frames, be layers of
  
  a single frame.
  As the hw_base_encode code is written with the thought that either
  
  the driver or the device itself supports sane image allocation,
  
  Vulkan does not leave us with this option.
  So, in the case that the hardware does not support individual
  
  frames to be used as DPBs, make the DBP frames context optional,
  
  and let the subsystem manage this.
  

  • [DH] libavcodec/hw_base_encode.c

• ffmpeg : concatinating files creates audio artefacts

  28 octobre 2022, par LML

  I'm currently trying to create a video out of multiple short video files. However, the final video always has audio artefacts, where it sounds like a short high pitch or echo at certain times during the audio. All the audio is a text-to-speech generated voice. No music. The artefacts appear sometimes more, sometimes less. But I would obviously prefer to have 0 of it.

  


  My starting point is a long audio file (mono with audio codec "mp3" according to ffprobe). Within that file are a bunch of short pauses of 4-5 seconds. I detect the silences and create individual audio files from there. Afterwards I create an mp4 file with this audio and a still image. Up to this point, the audio is perfectly fine and sounds the exact same as in the original file.

  


  After this I want to create the final video : each of the individual parts added into one long video. There is a transition between each file to mark the changing of image and audio. But even when skipping the transition and simply adding all of these clips that were generated the same way together, the artefacts are still present.

  


  The commands I use to create the different files.

  


  Create individual audio files :
.\ffmpeg.exe -y -hide_banner -i TTSAudio.mp3 -ss 359.944 -to 372.02479 -c copy partXY.mp3

  


  Create individual video files by using a .png file as the video stream and the partXY.mp3 as the audio stream :
.\ffmpeg.exe -y -hide_banner -framerate 30 -loop 1 -i XY_full.png -i partXY.mp3 -c:v libx265 -c:a copy -shortest partXY.mp4

  


  For concatenating the files :
.\ffmpeg.exe -y -hide_banner -i part000.mp4 -i part001.mp4 -i part002.mp4 -filter_complex "[0:v] [0:a] [1:v] [1:a] [2:v] [2:a] concat=n=3:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" -c:v copy -c:a copy final_video.mp4

  


  I've tried a lot of different things and codecs for the audio, without any luck. I use h265, as using h264 was causing weird video artefacts after uploading the file to YouTube.
I have tried reencoding, instead of copying (-c:a copy) at various stages, especially the final video. All without any luck.
I've used the different concatenation where you provide a list of files, which created a whole different set of problems.

  


  I've managed to filter the artefacts out by using -af "lowpass=f=2800", but that changes the voice a lot. I was also not able to notice the pitch visually when opening the audio in audacity, for example.

  


  Example :
https://soundcloud.com/thelml/sets/ffmpeg-audio-artefacts/s-LNr6UaMPgz9?si=f7b30e1e64bf4333ad055fa1fe21e9ec
Due to the files being so short, I seem to have to sometimes have to replay the bugged file to hear the artefact.

  


  So my question is : how do I fix this, without using a lowpass that basically changes the whole voice ?