Playing webcam videos in the HTML5 player

[Stéphane Lux]

Hi,

I'm working on the integration of the webcam videos of the users in the HTML5 popcorn player.

Here is a screenshot of the current version of the player:

If someone is interested in the code, let me know. 

Work is still in progress.

Kind regards,

Stéphane

[Chad Pilkey]

Stéphane,

It's looking really good. I'm really looking forward to the final product.

I have on question through. Will the recordings have all of the participants videos played back or only the presenter?

Chad

[Fred Dixon]

Hi  Stéphane,

Cool!  We would encourage you to share your work with others via a GitHub account.

Also, if you would like to contribute it to the project, please see

   http://code.google.com/p/bigbluebutton/wiki/FAQ#Contributing_to_BigBlueButton

Again, its cool to see others building up on the record and playback architecture.

Regards,... Fred

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[Stéphane Lux]

Hi Chad,

the final version will include the videos of all participants. 

Regards,

Stéphane

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[Felipe Cecagno]

Hi Stéphane,

I'd be interested to follow your progress as well. Is it available on GitHub?

Well done!

Regards,

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   Mconf Development Team

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[Stéphane Lux]

Hi Felipe,

I will post the code this week on gitub.

Mit freundlichen Grüßen · With best regards

Stéphane Lux

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[Kim Quang Đặng]

I am very interested in this project. I'm looking for solutions to playback webcam. I tried installing Matterhorn to playback all video but failing to build Matterhorn because mising -jars file when run Matterhorn.

Hoping that this project will help me and I'm waiting this code about this project live on github. 

Dang Kim Quang
Phone:  (+84) (0) 935730246
------------------------
Developer - CaoY Viet Nam

[Stéphane Lux]

Here is a screenshot of the current release of the popcorn player with webcam integration:

I have pushed the current version on github.

I'm currently working on integration of the webcam videos of all participants. 

Feedback appreciated.

Regards,

Stéphane

[Kim Quang Đặng]

Hi, how to use code in github. I downloaded this code. How to install to server ?

Regards,

Stéphane

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[Ahmad Bassel AlShalah]

thanks alot for your nice modification.

but i have do this modifications on the source of BBB, but it seams that the file :

record-and-playback/slides/scripts/publish/slides.rb

not working to publish the recorded files and sessions

note that before modification it was working for me with all function.

I think if you can give us breaf explain about installing it.

thanks again

[Stéphane Lux]

Hi,

short update for my player modification:

The popcorn player supports the playback up to 8 different webcams:

I'm working on a dynamic layout of the recorded webcams (similar to the videodock module of the client).

The release of the code on github will follow soon.

Kind regards,

Stéphane

[Fred Dixon]

Hi Stéphane,

Very cool!

Regards,... Fred

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[Stéphane Lux]

I have updated the code on github:

https://github.com/luxio/bigbluebutton/tree/popcornplayer-with-webcamvideos

Installation instructions

1. Ensure BigBlueButton records video and desktop session

2. Install ffmpeg
3. Install bbb-playback-slides:

$ sudo apt-get install bbb-playback-slides

4. copy contents of record-and-playback directory from github to the server

5. copy modified files

$ cd record-and-playback/

$ sudo cp -r slides/playback/slides/* /var/bigbluebutton/playback/slides/

$ udo cp core/lib/recordandplayback/generators/video.rb /usr/local/bigbluebutton/core/lib/recordandplayback/generators/

$ sudo cp slides/scripts/process/slides.rb /usr/local/bigbluebutton/core/scripts/process/

$ sudo cp slides/scripts/publish/slides.rb /usr/local/bigbluebutton/core/scripts/publish/

5. restart bbb

$ sudo bbb-conf --clean 

Regards,

Stéphane

[Felipe Cecagno]

Well done, Stéphane! We will try it for sure, thanks for sharing!

Regards,

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   Mconf Development Team

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[Kim Quang Đặng]

Hi Stéphane Lux , thanks for sharing. Very cool. I will try now. :-)

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[Kim Quang Đặng]

Hi Stéphane Lux  , How can I download source code of branch  popcornplayer-with-webcamvideos . Please help me. 

[Kim Quang Đặng]

I have followed the support on the stackoverflow (here) to checkout source code of the branch  popcornplayer-with-webcamvideos  . and results is very good .

But In my current Firefox 13.0.1 , I can not see the webcam at the beginning of a course. And when the playback, I caught the error is: Video format or MIME type is not supported. Then, I can not playback.

On chrome, everything is OK.

[Stéphane Lux]

Hi Kim,

thank you for testing. 

Firefox does not support the playback of H.264 Videos. I will fix this by converting the video in another format for firefox.

If you are using Windows , you can try this plugin for playing H.264 videos in Firefox.

Regards,

Stéphane

Firefox does not support the playpack of 

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Phone:  (+84) (0) 935730246
------------------------
Developer - CaoY Viet Nam

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Phone:  (+84) (0) 935730246
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[Ahmad Bassel AlShalah]

Hi Mr.  Stéphane Lux 

I would like to thank you for your effort regarding your modification of webcam viewing in playback.

Am using your modify webcam playback for one of LMS project of course using BBB too, but am using only the first playback modify which is for processing 1 webcam only because i need only teacher to access and share webcam, so no need to process other viewers webcam.

I face one problem with it, when am recording the meeting with share webcam, everything is ok, playback ok, webcam process ok. But when am recording the meeting without share webcam, the processing of meeting and publishing the meeting are stopped without continue of publishing xml files and other files to published folder.

Please if you can help me with this problem i will be very grateful.

Thanks again

 

On Monday, July 9, 2012 7:39:25 PM UTC+4, Stéphane Lux wrote:

[Kim milky]

Hi Stéphane Lux,

Now, when playbacking the video , to fast-forward or slow-down the videos I need to drag the mouse to the bottom of the playback page, it is very inconvenient. I usually just needs  playback only 1 webcam of teacher. 

How can change the height html of the video playback to put a video in slow motion, fast forward ..? or have an easy way to do this ?

[Stéphane Lux]

Hi Kim,

you can change the html file in the directory /var/bigbluebutton/playback/slides/

Currently the video size is static (8 webcam videos). I will make it dynamically, so that if there is only one webcam video, the video size will be smaller to fit only one video. 

Regards

Stéphane

[Ahmad Bassel AlShalah]

can anyone help me with this problem i mentioned above ? because everything is ok but when meeting dont have webcam it not published at all something wrong with this code

[Ahmad Bassel AlShalah]

when this modification are finished because am very interesting on it.

thanks in advanced

[Stéphane Lux]

I'm on vacation, but Felipe will release some modifications  soon.

Regards

Stéphane

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[gigo]

 

First thank you Stéphane, your modifications to the popcorn player looks great.

I was wondering if you had any gestiment on when you would change the layout to the webcams to support more than 8? Or allow anything to be resizable?

Also I was wondering if the webcams have to be combined or not, like would it be possible to make the popcorn player look just like the default bbb and allow users to control where and how large each element is in bbb playback just the same way that they can in a bbb meeting itself. Just replace the top bar of the screen with the play pause seek playback functions. That way it would be one familiar interface whether you were in a live meeting or a recorded one

[Fred Dixon]

Hi Gigo,

Wow -- you must have quite the conference to support more than eight simultaneous webcams.

Inspired by Stéphane's work, we (the core developers) are working on integrating the playback of webcams into BigBlueButton 0.81 for this summer.   In 0.81, there will be a new playback format called 'presentation', which records and plays back all activity -- mouse movement, whiteboard, and pan/zoom -- that occurs within the presentation area.  To this we will be adding playback of webcams.

In terms of look and feel, the new playback format will resemble the slides playback.  As for modifying the layout itself (such as changing the orientation of windows), the playback is HTML, it would be possible for others to modify a playback format to suite their needs.

We'll be posting more updates on the new playback format shortly.

We're all using the same record and playback architecture, and we are really encouraged by the work of Stéphane and others who are building upon it.

Regards,... Fred

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[Michael]

Hi Fred,

  Will the playback of webcam in BigBlueButton 0.81 require running deskshare? I would prefer if it didn't.
Regards,

Michael

[Fred Dixon]

Hi Michael,

Playback of webcams in BigBlueButton 0.81 (currently under development) will not require running desktop sharing.  

However, we won't be playing back the desktop sharing in BigBlueButton 0.81.   For that, you'll still want to use the Matterhorn integration.

Regards... Fred

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[Michael]

Hi Fred!

  Thanks for the quick answer. It's good news for me. I don't need to play back desktop sharing for now.

Regards,

Michael

[Maksim Ustinov]

Hello Stéphane,

I installed all necessary libraries and followed all steps that you described. Everything went smooth but when I'm trying to record the meeting I'm getting strange error. It is saying that _user01-blank-beginning.flv file cannot be found. Here is the error I'm getting:

ubuntu@ip-10-86-141-248:~$ ffmpeg -i /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/user01-blank-beginning.flv -loglevel info -v -10 -sameq -f mpegts /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/user01-blank-beginning.flv.mpg

ffmpeg version 0.11.2 Copyright (c) 2000-2012 the FFmpeg developers

  built on Oct 21 2012 02:45:54 with gcc 4.4.3

  configuration: --enable-version3 --enable-postproc --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx

  libavutil      51. 54.100 / 51. 54.100

  libavcodec     54. 23.100 / 54. 23.100

  libavformat    54.  6.100 / 54.  6.100

  libavdevice    54.  0.100 / 54.  0.100

  libavfilter     2. 77.100 /  2. 77.100

  libswscale      2.  1.100 /  2.  1.100

  libswresample   0. 15.100 /  0. 15.100

/var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/user01-blank-beginning.flv: No such file or directory

And another error from /var/log/bigbluebutton/slides/process-6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608.log

# Logfile created on 2012-10-21 22:22:44 +0000 by logger.rb/25413

I, [2012-10-21T22:22:44.626252 #14007]  INFO -- : Task: Processing events

I, [2012-10-21T22:22:44.626423 #14007]  INFO -- : Task: Getting start audio recording events

I, [2012-10-21T22:22:44.627331 #14007]  INFO -- : Task: Getting stop audio recording events

I, [2012-10-21T22:22:44.627626 #14007]  INFO -- : Task: Matching start and stop events

I, [2012-10-21T22:22:44.627708 #14007]  INFO -- : Task: Determine start and stop timestamps for unmatched event

I, [2012-10-21T22:22:44.627773 #14007]  INFO -- : Task: Determining if recording file exist

I, [2012-10-21T22:22:44.627859 #14007]  INFO -- : Task: Getting length of audio

I, [2012-10-21T22:22:44.632026 #14007]  INFO -- : Executing: sox /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608-1350858063329.wav -n stat 2>&1

I, [2012-10-21T22:22:44.638857 #14007]  INFO -- : Output: ["Samples read:            137280\n", "Length (seconds):      8.580000\n", "Scaled by:         2147483647.0\n", "Maximum amplitude:     0.141449\n", "Minimum amplitude:    -0.147552\n", "Midline amplitude:    -0.003052\n", "Mean    norm:          0.008201\n", "Mean    amplitude:    -0.000008\n", "RMS     amplitude:     0.017602\n", "Maximum delta:         0.054504\n", "Minimum delta:         0.000000\n", "Mean    delta:         0.002320\n", "RMS     delta:         0.005143\n", "Rough   frequency:          743\n", "Volume adjustment:        6.777\n"] 

I, [2012-10-21T22:22:44.639100 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:44.639186 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:44.639266 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:44.639499 #14007]  INFO -- : Determined audio length from stats using sox [8580]

I, [2012-10-21T22:22:44.639585 #14007]  INFO -- : Determined audio length is [8580]

I, [2012-10-21T22:22:44.639698 #14007]  INFO -- : Task: Generating audio paddings

I, [2012-10-21T22:22:44.639795 #14007]  INFO -- : Task: Getting the timestamp of the first event.

I, [2012-10-21T22:22:44.640205 #14007]  INFO -- : Task: Getting the timestamp of the first event.

I, [2012-10-21T22:22:44.640556 #14007]  INFO -- : Task: Creating audio gap event

I, [2012-10-21T22:22:44.859195 #14007]  INFO -- : Task: Generating silence. Filename: /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/8010.wav with duration 8010 milliseconds

I, [2012-10-21T22:22:44.864429 #14007]  INFO -- : Executing: sox /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/8010.wav.dat -b 16 -r 16000 -c 1 -s /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/8010.wav

I, [2012-10-21T22:22:44.963076 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:44.963204 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:44.963280 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:44.963788 #14007]  INFO -- : Task: Concatenating audio files

I, [2012-10-21T22:22:44.969661 #14007]  INFO -- : Executing: sox /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/8010.wav /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608-1350858063329.wav /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/recording.wav

I, [2012-10-21T22:22:44.971904 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:44.972044 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:44.972148 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:44.972281 #14007]  INFO -- : Converting .wav to .ogg

I, [2012-10-21T22:22:44.976050 #14007]  INFO -- : Executing: oggenc -Q -o /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio.ogg /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/recording.wav 2>&1

I, [2012-10-21T22:22:45.131101 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:45.131300 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:45.131402 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:45.131753 #14007]  INFO -- : Task: Getting presentations from events

I, [2012-10-21T22:22:45.133290 #14007]  INFO -- : Task: Getting number of pages in presentation

I, [2012-10-21T22:22:45.133636 #14007]  INFO -- : Task: Extracting a page from pdf file

I, [2012-10-21T22:22:45.136845 #14007]  INFO -- : Executing: ghostscript -sDEVICE=pdfwrite -dNOPAUSE -dQUIET -dBATCH -dFirstPage=1 -dLastPage=1 -sOutputFile=/var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/presentation/default/slide-1.pdf /etc/bigbluebutton/nopdfmark.ps /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/presentation/default/default.pdf

I, [2012-10-21T22:22:46.158210 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:46.158422 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:46.158521 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:46.158641 #14007]  INFO -- : Task: Converting .pdf to .png

I, [2012-10-21T22:22:46.169575 #14007]  INFO -- : Executing: convert -density 300x300 -resize 800x600 -quality 90 +dither -depth 8 -colors 256 /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/presentation/default/slide-1.pdf /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/presentation/default/slide-1.png

I, [2012-10-21T22:22:54.067552 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:54.067767 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:54.067873 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:54.067990 #14007]  INFO -- : Processing webcam videos

I, [2012-10-21T22:22:54.068116 #14007]  INFO -- : Task: Processing events

I, [2012-10-21T22:22:54.068213 #14007]  INFO -- : Task: Getting start audio recording events

I, [2012-10-21T22:22:54.069790 #14007]  INFO -- : Task: Getting stop audio recording events

I, [2012-10-21T22:22:54.070522 #14007]  INFO -- : Task: Matching start and stop events

I, [2012-10-21T22:22:54.070615 #14007]  INFO -- : Task: Determine start and stop timestamps for unmatched event

I, [2012-10-21T22:22:54.070695 #14007]  INFO -- : Task: Determining if recording file exist

I, [2012-10-21T22:22:54.070794 #14007]  INFO -- : Task: Getting length of audio

I, [2012-10-21T22:22:54.074948 #14007]  INFO -- : Executing: sox /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608-1350858063329.wav -n stat 2>&1

I, [2012-10-21T22:22:54.080284 #14007]  INFO -- : Output: ["Samples read:            137280\n", "Length (seconds):      8.580000\n", "Scaled by:         2147483647.0\n", "Maximum amplitude:     0.141449\n", "Minimum amplitude:    -0.147552\n", "Midline amplitude:    -0.003052\n", "Mean    norm:          0.008201\n", "Mean    amplitude:    -0.000008\n", "RMS     amplitude:     0.017602\n", "Maximum delta:         0.054504\n", "Minimum delta:         0.000000\n", "Mean    delta:         0.002320\n", "RMS     delta:         0.005143\n", "Rough   frequency:          743\n", "Volume adjustment:        6.777\n"] 

I, [2012-10-21T22:22:54.080515 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:54.080625 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:54.080720 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:54.080967 #14007]  INFO -- : Determined audio length from stats using sox [8580]

I, [2012-10-21T22:22:54.081069 #14007]  INFO -- : Determined audio length is [8580]

I, [2012-10-21T22:22:54.081169 #14007]  INFO -- : Task: Generating audio paddings

I, [2012-10-21T22:22:54.081254 #14007]  INFO -- : Task: Getting the timestamp of the first event.

I, [2012-10-21T22:22:54.082098 #14007]  INFO -- : Task: Getting the timestamp of the first event.

I, [2012-10-21T22:22:54.082614 #14007]  INFO -- : Task: Creating audio gap event

I, [2012-10-21T22:22:54.289580 #14007]  INFO -- : Task: Generating silence. Filename: /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/8010.wav with duration 8010 milliseconds

I, [2012-10-21T22:22:54.294143 #14007]  INFO -- : Executing: sox /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/8010.wav.dat -b 16 -r 16000 -c 1 -s /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/8010.wav

I, [2012-10-21T22:22:54.393395 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:54.393552 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:54.393625 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:54.394045 #14007]  INFO -- : Task: Concatenating audio files

I, [2012-10-21T22:22:54.399575 #14007]  INFO -- : Executing: sox /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/8010.wav /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608-1350858063329.wav /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/recording.wav

I, [2012-10-21T22:22:54.402486 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:54.402633 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:54.402801 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:54.402930 #14007]  INFO -- : Converting .wav to .ogg

I, [2012-10-21T22:22:54.406818 #14007]  INFO -- : Executing: oggenc -Q -o /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio.ogg /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio/recording.wav 2>&1

I, [2012-10-21T22:22:54.561715 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:54.561900 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:54.562002 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:54.562134 #14007]  INFO -- : Task: Creating blank canvas

I, [2012-10-21T22:22:54.565296 #14007]  INFO -- : Executing: convert -size 320x240 xc:#EEEEEE /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/canvas.jpg

I, [2012-10-21T22:22:54.575877 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:54.576064 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:54.576171 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:54.576288 #14007]  INFO -- : Task: Getting the timestamp of the first event.

I, [2012-10-21T22:22:54.577594 #14007]  INFO -- : Task: Getting the timestamp of the last event

I, [2012-10-21T22:22:54.578432 #14007]  INFO -- : Task: Getting start video events

I, [2012-10-21T22:22:54.579110 #14007]  INFO -- : Task: Getting stop video events

I, [2012-10-21T22:22:54.579864 #14007]  INFO -- : webcam_user_ids: ["01"]

I, [2012-10-21T22:22:54.579986 #14007]  INFO -- : Task: Matching the start and stop events

I, [2012-10-21T22:22:54.580072 #14007]  INFO -- : Task: Finding video events that match

I, [2012-10-21T22:22:54.580164 #14007]  INFO -- : Task: Generating video paddings

I, [2012-10-21T22:22:54.580261 #14007]  INFO -- : Task: Creating blank video

I, [2012-10-21T22:22:54.588720 #14007]  INFO -- : Executing: ffmpeg -loop_input -t 12.753 -i /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/canvas.jpg -loglevel fatal -v -10 -r 1000 /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/user01-blank-beginning.flv

I, [2012-10-21T22:22:54.588992 #14007]  INFO -- : Success ?:  false

I, [2012-10-21T22:22:54.589102 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:54.589209 #14007]  INFO -- : Exit status: 1

I, [2012-10-21T22:22:54.589368 #14007]  INFO -- : Task: Stripping audio from video

I, [2012-10-21T22:22:54.599604 #14007]  INFO -- : Executing: ffmpeg -i /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/video/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/320x2401-1350858064405.flv -loglevel fatal -v -10 -an -vcodec copy /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/stripped-wc-320x2401-1350858064405.flv

I, [2012-10-21T22:22:54.602763 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:54.602898 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:54.603039 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:54.630127 #14007]  INFO -- : Scaling the video to the max width and height

I, [2012-10-21T22:22:54.630378 #14007]  INFO -- : Task: Determine if video is less that max width and height

I, [2012-10-21T22:22:54.633454 #14007]  INFO -- : Executing: ffmpeg -i /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/stripped-wc-320x2401-1350858064405.flv -loglevel fatal -v -10 -aspect 4:3 -r 1000 -sameq  -vf scale=320:240  /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/scaled-wc-320x2401-1350858064405.flv

I, [2012-10-21T22:22:54.664883 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:54.665110 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:54.665234 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:54.665392 #14007]  INFO -- : Task: Concatenating videos

I, [2012-10-21T22:22:54.665524 #14007]  INFO -- : Task: Converting .flv to .mpg

I, [2012-10-21T22:22:54.669464 #14007]  INFO -- : Executing: ffmpeg -i /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/user01-blank-beginning.flv -loglevel fatal -v -10 -sameq -f mpegts /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/user01-blank-beginning.flv.mpg

I, [2012-10-21T22:22:54.673906 #14007]  INFO -- : Success ?:  false

I, [2012-10-21T22:22:54.674075 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:54.674173 #14007]  INFO -- : Exit status: 1

I, [2012-10-21T22:22:54.674295 #14007]  INFO -- : Task: Converting .flv to .mpg

I, [2012-10-21T22:22:54.679497 #14007]  INFO -- : Executing: ffmpeg -i /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/scaled-wc-320x2401-1350858064405.flv -loglevel fatal -v -10 -sameq -f mpegts /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/scaled-wc-320x2401-1350858064405.flv.mpg

I, [2012-10-21T22:22:54.763962 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:54.764175 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:54.764285 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:54.764445 #14007]  INFO -- : Task: Concatenating .mpg files

I, [2012-10-21T22:22:54.767424 #14007]  INFO -- : Executing: cat /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/user01-blank-beginning.flv.mpg /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/scaled-wc-320x2401-1350858064405.flv.mpg >  /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/webcam.mpg

E, [2012-10-21T22:22:54.771151 #14007] ERROR -- : Error: stderr: ["cat: /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/temp/user01-blank-beginning.flv.mpg: No such file or directory\n"]

I, [2012-10-21T22:22:54.771366 #14007]  INFO -- : Success ?:  false

I, [2012-10-21T22:22:54.771486 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:54.771590 #14007]  INFO -- : Exit status: 1

I, [2012-10-21T22:22:54.771704 #14007]  INFO -- : Task: Converting .mpg to .flv

I, [2012-10-21T22:22:54.779546 #14007]  INFO -- : Executing: ffmpeg -i  /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/webcam.mpg -loglevel fatal -v -10 -sameq  /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/webcam-user01.flv

I, [2012-10-21T22:22:54.954703 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:54.954921 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:54.955016 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:54.955123 #14007]  INFO -- : videofilter: pad=640:960:0:0:0xEEEEEE 

I, [2012-10-21T22:22:54.958008 #14007]  INFO -- : Executing: ffmpeg -i /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/webcam-user01.flv -loglevel fatal -r 1000 -sameq -v -10 -vf "pad=640:960:0:0:0xEEEEEE " /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/webcams.flv

I, [2012-10-21T22:22:55.830890 #14007]  INFO -- : Success ?:  true

I, [2012-10-21T22:22:55.831112 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:55.831218 #14007]  INFO -- : Exit status: 0

I, [2012-10-21T22:22:55.843639 #14007]  INFO -- : Executing: ffmpeg -i /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/audio.ogg  -i /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/webcams.flv  -loglevel fatal -v -10  -vcodec libx264 -profile high -preset slow -b 1000k -threads 0  -map 1:0 -map 0:0 -ar 22050 /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350858052608/webcams.mp4

I, [2012-10-21T22:22:55.853463 #14007]  INFO -- : Success ?:  false

I, [2012-10-21T22:22:55.853662 #14007]  INFO -- : Process exited? true

I, [2012-10-21T22:22:55.853765 #14007]  INFO -- : Exit status: 1

Do you know why this is happening?

I tried to read your code but not very familiar with Ruby. Any suggestions will be greatly appreciated.

Thanks

[Maksim Ustinov]

Here is additional log info to my previous post:

ubuntu@ip-10-86-141-248:$ sudo bbb-conf -d

  -- ERRORS found in /var/log/bigbluebutton/* -- 

/var/log/bigbluebutton/bbb-rap-worker.log:E, [2012-10-22T01:04:05.529903 #9860] ERROR -- : Error: stderr: ["/usr/lib/ruby/1.9.2/fileutils.rb:1423:in `stat': No such file or directory - /var/bigbluebutton/recording/process/slides/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350867695834/webcams.mp4 (Errno::ENOENT)\n", "\tfrom /usr/lib/ruby/1.9.2/fileutils.rb:1423:in `block in fu_each_src_dest'\n", "\tfrom /usr/lib/ruby/1.9.2/fileutils.rb:1437:in `fu_each_src_dest0'\n", "\tfrom /usr/lib/ruby/1.9.2/fileutils.rb:1421:in `fu_each_src_dest'\n", "\tfrom /usr/lib/ruby/1.9.2/fileutils.rb:391:in `cp'\n", "\tfrom /usr/local/bigbluebutton/core/scripts/publish/slides.rb:51:in `<main>'\n"]

   -- ERRORS found in /usr/share/red5/log/* -- 

/usr/share/red5/log/bigbluebutton.log:2012-10-22 01:01:38,979 [NioProcessor-6] ERROR o.b.w.v.f.a.PopulateRoomCommand - Not XML: [Conference 70424 not found]

/usr/share/red5/log/bigbluebutton.log:2012-10-22 01:01:46,908 [EslEventNotifier-1] ERROR o.b.w.v.f.a.RecordConferenceCommand - Not XML: [Record file /var/freeswitch/meetings/6e35e3b2778883f5db637d7a5dba0a427f692e91-1350867695834-1350867706889.wav]

 

On Tuesday, July 17, 2012 6:32:45 AM UTC-7, Stéphane Lux wrote:

[Chipie]

Hi Maksim,

bbb 0.81 will support the playback of recorded webcam videos. There will be a beta soon. 

Best regards,

Stéphane

[Fred Dixon]

Hi Maksim,

We've incorporated playback of multiple webcams into BigBlueButto 0.81-dev, which we're working towards releasing beta.  For more information, see

  http://www.bigbluebutton.org/2012/10/04/community-call-progress-on-0-81-redux/

and watch the recording of the recent community call.  We talk about the playback of multiple webcams around 20:00 into the call.

Regards,... Fred

-- 
BigBlueButton Developer

http://bigbluebutton.org/
http://code.google.com/p/bigbluebutton

BigBlueButton on twitter: @bigbluebutton

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