myomikron/bbb-export

This repository is used to export a video from a bigbluebutton recording.

bbb-export

This project is based on createwebinar/bbb-download. In the original project you are only able to see the presentation and the extracted audio. This project shows the presentation (Important! No wideboard functions besides zooming) and the webcams of all participants stacked up next it. The video height is now 1280 pixel, whereas the width is variable.

Requirements

• python3
• ffmpeg compiled with libx264 support

Usage

Specify in ffmpeg.py the variable FFMPEG with the location of ffmpeg. There is a precompiled version of ffmpeg in the folder ffmpeg.

python3 convert.py meeting_id

The video will be at the folder /var/bigbluebutton/published/presentation/<meeting_id>/output.mp4

bbb-export's Issues

Unable to Locate Download.py

I couldn't find any file related to this command python3 download.py <meetingid>

Permission Deny while running convert.py

Running convert.py and using a pre-compiled version of FFmpeg defined in the Readme it shows and error

Error

bbb_version: 2.1.0
dictionary
{0.0: '/var/bigbluebutton/published/presentation/611a2ac8fe63f1c31d15c4003391cf310b2019b3-1596186703026/temp/presentation/d2d9a672040fbde2a47a10bf6c37b6a4b5ae187f-1596186704090/slide-1.png', 13.1: '/var/bigbluebutton/published/presentation/611a2ac8fe63f1c31d15c4003391cf310b2019b3-1596186703026/temp/presentation/deskshare.png'}
length
941.2
times
dict_keys([0.0, 13.1])
name
presentation
name
presentation
dims
{'presentation': (900, 1600)}
MAX Height:900
sh: 1: /home/ubuntu/bbb-export/ffmpeg: Permission denied
sh: 1: /home/ubuntu/bbb-export/ffmpeg: Permission denied
sh: 1: /home/ubuntu/bbb-export/ffmpeg: Permission denied
-=create_slideshow=-
<_io.TextIOWrapper name='<stderr>' mode='w' encoding='UTF-8'> (1, 0, 0.0, 13.1)
sh: 1: /home/ubuntu/bbb-export/ffmpeg: Permission denied
<_io.TextIOWrapper name='<stderr>' mode='w' encoding='UTF-8'> (0, 1, 13.1, 928.1)
sh: 1: /home/ubuntu/bbb-export/ffmpeg: Permission denied
sh: 1: /home/ubuntu/bbb-export/ffmpeg: Permission denied
sh: 1: /home/ubuntu/bbb-export/ffmpeg: Permission denied
sh: 1: /home/ubuntu/bbb-export/ffmpeg: Permission denied
sh: 1: /home/ubuntu/bbb-export/ffmpeg: Permission denied
sh: 1: /home/ubuntu/bbb-export/ffmpeg: Permission denied
sh: 1: /home/ubuntu/bbb-export/ffmpeg: Permission denied
sh: 1: /home/ubuntu/bbb-export/ffmpeg: Permission denied
<_io.TextIOWrapper name='<stderr>' mode='w' encoding='UTF-8'> Cleaning up temp files...
<_io.TextIOWrapper name='<stderr>' mode='w' encoding='UTF-8'> Done

ffmpeg.py

FFMPEG = '/home/ubuntu/bbb-export/ffmpeg/'

I have given 777 permission to all files inside the ffmpeg folder still no luck

I am new to python thanks!

Python3 issues in convert.py

The shipped convert.py fails to run out the box. There are two errors - in python3, dict.leys() returns an iterator, not a list, so it doesn't have a sort method (occurs twice). Also, set_logfile in ffmpeg.py is never called, so the various conversion scripts fail.

I used the following patch to get things working, although it's very much a quck hack.

• Using sorted(dictionary.keys()) would be better than just converting to a list.
• the logfile choice is arbitary, and should be replaced with something better - possibly updating the README to add an instruction to set it is a better approach.

--- a/convert.py
+++ b/convert.py
@@ -59,7 +59,7 @@ def create_slideshow(dictionary, length, result):
     video_list_fn = []
     f = open(video_list, 'w')
 
-    times = dictionary.keys()
+    times = list(dictionary.keys())
     times.sort()
 
     ffmpeg.webm_to_mp4(SOURCE_DESKSHARE, TMP_DESKSHARE_FILE)
@@ -114,7 +114,7 @@ def get_presentation_dims(presentation_name):
 
 
 def rescale_presentation(new_height, new_width, dictionary, bbb_version):
-    times = dictionary.keys()
+    times = list(dictionary.keys())
     times.sort()
     for i, t in enumerate(times):
         if i < 1 and '2.0.0' > bbb_version:
@@ -211,6 +211,8 @@ def main():
     bbb_version = bbbversion()
     print("bbb_version: " + bbb_version)
 
+    ffmpeg.set_logfile("ffmpeg.log")
+
     os.chdir(source_dir)
     dictionary, length, dims = prepare(bbb_version)
 

Issues with convert.py

> `Traceback (most recent call last):
>   File "convert.py", line 232, in <module>
>     main()
>   File "convert.py", line 211, in main
>     bbb_version = bbbversion()
>   File "convert.py", line 202, in bbbversion
>     s_events = minidom.parse(source_events)
>   File "/usr/lib/python3.5/xml/dom/minidom.py", line 1958, in parse
>     return expatbuilder.parse(file)
>   File "/usr/lib/python3.5/xml/dom/expatbuilder.py", line 910, in parse
>     with open(file, 'rb') as fp:
> FileNotFoundError: [Errno 2] No such file or directory: 
> '/var/bigbluebutton/recording/raw/126334d5d7e1ac6bcb63d16d80a9b31ff7c2b356-1589947838035/events.xml'`

I tried python3 convert.py meetingID, It throws me the above error, Even I have checked events.xml It's available in the same folder. Attached image for your reference.

I don't know what went wrong, please help me out.

convert.py gives an error.

Hello

Tried using this to convert a recording to mp4 after setting up the ffmpeg path and it gives the error below.

Please point me in the right direction.

bbb_version: 2.1.0
Traceback (most recent call last):
File "convert.py", line 232, in
main()
File "convert.py", line 215, in main
dictionary, length, dims = prepare(bbb_version)
File "convert.py", line 163, in prepare
dictionary, length = extract_timings(bbb_version)
File "convert.py", line 45, in extract_timings
temp = float(out_times[len(out_times) - 1])
ValueError: could not convert string to float:

Thanks!