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• Q&A : An interview with Matomo founder, Matthieu Aubry

  20 novembre 2018, par Joselyn Khor — About, Community

  Hey everyone ! Joselyn here. As always the views of our community remain top of mind. So to make sure you guys know the thinking behind these new projects, we reached out to Matomo’s founder, Matthieu, to ask questions you might want answered. Please check it out below !

  Hi guys, it’s Matthieu ! Here to answer some questions about the rebrand and the future of Matomo and Innocraft.

  What’s upcoming ?

  We’ve been busy implementing our rebrand into all aspects of Matomo and there’s also our new website, which is launching today ! The new website will help people better understand what Matomo is and how they can benefit from using modern web analytics.

  Why was Matomo and Innocraft brought onto one website ?

  In the past the separation caused a bit of confusion so we’re taking this as a chance to unite both the business brand, Innocraft and community brand, Matomo, on one website. Putting our focus on one brand, Matomo, makes it easier for people to see us with fresh eyes. We have a community side as well as a business side and while the community is still incredibly important to us, we find we have a powerful analytics tool that is capable of helping businesses too.

  Is Matomo becoming commercial or turning corporate ?

  No. nothing is changing. Matomo is still an open-source project and community. Although we’ll have a pricing page and “start free trial” on the new website brought over from Innocraft.cloud, the Matomo community will still play the biggest part on the Matomo website. We have dedicated sections focused on Community and On-Premise.

  The rebrand exercise helped us gain a refreshed perspective. After reflecting on how far we’ve come, we can feel more confident about Matomo Analytics itself as a platform. We believe it’s a great chance to bring that confidence into the brand and vision. We are proud that it’s an awesome open-source platform and at the same time it’s also powerful as a tool for businesses.

  Why is there no ‘download for free’ button on the homepage ?

   

  
  We feel many users coming to the site will get confused about our hosting options (Cloud and On-Premise) which is something you don’t usually consider when choosing an analytics tool.

  The reason for us to not have that button is when people see a “download for free” button on the homepage next to a “try it for free” button, it creates confusion. For those who do choose to download Matomo often become confused when they are left with a .zip file unaware how to install it and the technical requirements of self-hosting. We feel presenting our users with the simplest installation option first will give them the best chance possible to try Matomo to its full potential, without cost.

  And you can still find the link to Download Matomo in the footer of each page.
  

   

  Is Matomo still free to download and have forever ?

  Absolutely. The free open-source download can be found on the On-Premise section of the website, or download Matomo here.

  Why is it important to have a business behind the project ?

  There’s the reality that we have to make money in order for the Matomo project to survive … and thrive. The reason we still need a business side (Innocraft) is to fund and sustain the Matomo project. Whenever people purchase premium features, this helps finance the development of Matomo for our community.

  Because of the business we’re able to continually maintain and develop Matomo for you guys as well as future users. For example, the next release Matomo 3.8.0 is already mostly developed and will bring lots of interesting features too, like the two-factor authentication, Brute Force Protection, failed tracking requests reporting, lots of JavaScript tracker improvements, a new total summary row below reports, and many more security fixes, bug fixes, and other new features.

  So we see a business being very helpful in supporting our open-source community. Without a business side, our free, open-source project would not be able to survive.

  How will you protect the Matomo project ?

  We’ve ensured the Matomo project will be protected for the future as we wish to turn it into a not-for-profit foundation.

  We’ve also got a safeguard where the open-source code will stay under a GPL license forever. This is so we can guarantee, that no matter what happens, the Matomo project itself will stay completely free software.

  Is there a way for people to help ?

  There are heaps of ways to help ! You can help other Matomo users in the forums, contribute to fixes on GitHub, leave a great review (e.g. alternativeTo), help look for bugs with our Security Bounty Programme or participate and spread the word about Matomo in our community social media pages – Mastodon, Facebook, Twitter. Telling your friends about us would be very helpful too !

  What’s planned for the future ?
  We’ve worked hard to become the #1 open-source analytics platform (1.4 million websites use Matomo today), but now we need to empower even more individuals and businesses to take back control of their own data.

  Showing our community that we have a powerful platform is crucial, but alongside that our values are what define us. User privacy is still of utmost importance and we’re here to make it known that power needs to rest in the hands of people and not large corporations.

  You can rest easy knowing you’re doing your part in using trustworthy and dependable tools. By joining many other companies who are growing this movement to decentralise the Internet, we can build a safer, online world together.

  Join this analytics revolution and let us know what you think about Matomo !

• Rotate video according to rotation metadata and strip off metadata using ffmpeg [on hold]

  12 décembre 2018, par this.lau_

  I’ve got a video with the following metadata :

  Metadata:
  
    rotate          : 90
  
    creation_time   : 2018-12-03T16:13:47.000000Z
  
    handler_name    : VideoHandle
  
  Side data:
  
    displaymatrix: rotation of -90.00 degrees

  And I would like to remove this metadata and rotate the video by whatever rotation value is found there (in this case -90 but it can be anything).

  The result will be a video with the correct orientation and that works with all video players (including those that don’t auto-rotate based on the metadata).

  I’ve tried various commands but couldn’t find anything that would work. Any idea how to do this ?

• Libsourcey : webrtcrecorder.mp4 file is not generated

  5 décembre 2018, par Iranna Pattar

  I am running WebRTC Native Video Recorder demo Application, but webrtcrecorder.mp4 file is not generated. As I have gone through some question and answers but unable to find the answer. I am getting some error

  here is the command of cmake

  cmake .. -DCMAKE_BUILD_TYPE=DEBUG -DBUILD_SHARED_LIBS=OFF     -DBUILD_MODULES=OFF    -DBUILD_APPLICATIONS=OFF \
  
     -DBUILD_SAMPLES=ON         -DBUILD_TESTS=OFF         -DWITH_WEBRTC=ON -DWITH_FFMPEG=ON    -DBUILD_MODULE_base=ON \
  
     -DBUILD_MODULE_crypto=ON   -DBUILD_MODULE_http=ON       -DBUILD_MODULE_json=ON               -DBUILD_MODULE_av=ON    \
  
     -DBUILD_MODULE_net=ON      -DBUILD_MODULE_socketio=ON   -DBUILD_MODULE_symple=ON             -DBUILD_MODULE_stun=ON   \
  
     -DBUILD_MODULE_turn=ON     -DBUILD_MODULE_util=ON       -DBUILD_MODULE_uv=ON                 -DBUILD_MODULE_webrtc=ON \
  
     -DBUILD_SAMPLES_webrtc=ON  -DWEBRTC_INCLUDE_DIR=/home/ubuntu/temp/webrtc-22215-ab42706-linux-x64/include \
  
     -DWEBRTC_LIBRARIES=/home/ubuntu/temp/webrtc-22215-ab42706-linux-x64/lib/ \
  
     -DWEBRTC_ROOT_DIR=/home/ubuntu/temp/webrtc-22215-ab42706-linux-x64    \
  
     -DBUILD_MODULE_openssl=ON   -DOPENSSL_ROOT_DIR=/usr/local/ssl     -DOPENSSL_LIBRARIES=/usr/local/ssl/lib/ \
  
     -DOPENSSL_INCLUDE_DIR=/usr/local/ssl/include/openssl/

  here are the logs of webrtcrecorder :

  Client state changed from Closed to Connecting
  
  13:31:54 [debug] [application.cpp(104)] Wait for shutdown
  
  13:31:54 [debug] [signaler.cpp(116)] Client state changed from Connecting to Connected
  
  13:31:54 [debug] [client.cpp(364)] On handshake: sid=_Wi06W8eF4GdOGn_AAAA, pingInterval=25000, pingTimeout=60000
  
  13:31:54 [debug] [client.cpp(387)] Peer connected:videorecorder|_Wi06W8eF4GdOGn_AAAA
  
  13:31:54 [debug] [signaler.cpp(116)] Client state changed from Connected to Online
  
  13:31:59 [debug] [signaler.cpp(89)] Peer message: demo|Ivv61MFbOi96l__ZAAAB
  
  13:31:59 [debug] [signaler.cpp(71)] Peer connected: Ivv61MFbOi96l__ZAAAB
  
  13:31:59 [debug] [client.cpp(387)] Peer connected:demo|Ivv61MFbOi96l__ZAAAB
  
  13:32:00 [debug] [signaler.cpp(89)] Peer message: demo|Ivv61MFbOi96l__ZAAAB
  
  13:32:00 [debug] [peer.cpp(130)] Ivv61MFbOi96l__ZAAAB: Receive offer: v=0
  
  o=- 7392103695987858658 2 IN IP4 127.0.0.1
  
  s=-
  
  t=0 0
  
  a=group:BUNDLE audio video
  
  a=msid-semantic: WMS je7s7e9RhWY3cMVjVn8y0ipyOgJnTgu1bMYd
  
  m=audio 9 UDP/TLS/RTP/SAVPF 111 103 104 9 0 8 106 105 13 110 112 113 126
  
  c=IN IP4 0.0.0.0
  
  a=rtcp:9 IN IP4 0.0.0.0
  
  a=ice-ufrag:ICgM
  
  a=ice-pwd:hruHw+Fgaswb+slJ3/eE3Yad
  
  a=ice-options:trickle
  
  a=fingerprint:sha-256 B3:30:19:FA:91:57:CE:2B:7D:60:C4:16:27:FE:8E:CB:76:57:31:C6:75:72:72:87:36:C4:8E:30:91:01:27:D8
  
  a=setup:actpass
  
  a=mid:audio
  
  a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level
  
  a=sendrecv
  
  a=rtcp-mux
  
  a=rtpmap:111 opus/48000/2
  
  a=rtcp-fb:111 transport-cc
  
  a=fmtp:111 minptime=10;useinbandfec=1
  
  a=rtpmap:103 ISAC/16000
  
  a=rtpmap:104 ISAC/32000
  
  a=rtpmap:9 G722/8000
  
  a=rtpmap:0 PCMU/8000
  
  a=rtpmap:8 PCMA/8000
  
  a=rtpmap:106 CN/32000
  
  a=rtpmap:105 CN/16000
  
  a=rtpmap:13 CN/8000
  
  a=rtpmap:110 telephone-event/48000
  
  a=rtpmap:112 telephone-event/32000
  
  a=rtpmap:113 telephone-event/16000
  
  a=rtpmap:126 telephone-event/8000
  
  a=ssrc:1294348972 cname:G/WgJ3Ijh9QR84NI
  
  a=ssrc:1294348972 msid:je7s7e9RhWY3cMVjVn8y0ipyOgJnTgu1bMYd 30683b54-4aef-4c98-bf11-e9f497eddafd
  
  a=ssrc:1294348972 mslabel:je7s7e9RhWY3cMVjVn8y0ipyOgJnTgu1bMYd
  
  a=ssrc:1294348972 label:30683b54-4aef-4c98-bf11-e9f497eddafd
  
  m=video 9 UDP/TLS/RTP/SAVPF 96 97 98 99 100 101 102 122 127 121 125 107 108 109 124 120 123 119 114
  
  c=IN IP4 0.0.0.0
  
  a=rtcp:9 IN IP4 0.0.0.0
  
  a=ice-ufrag:ICgM
  
  a=ice-pwd:hruHw+Fgaswb+slJ3/eE3Yad
  
  a=ice-options:trickle
  
  a=fingerprint:sha-256 B3:30:19:FA:91:57:CE:2B:7D:60:C4:16:27:FE:8E:CB:76:57:31:C6:75:72:72:87:36:C4:8E:30:91:01:27:D8
  
  a=setup:actpass
  
  a=mid:video
  
  a=extmap:2 urn:ietf:params:rtp-hdrext:toffset
  
  a=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
  
  a=extmap:4 urn:3gpp:video-orientation
  
  a=extmap:5 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01
  
  a=extmap:6 http://www.webrtc.org/experiments/rtp-hdrext/playout-delay
  
  a=extmap:7 http://www.webrtc.org/experiments/rtp-hdrext/video-content-type
  
  a=extmap:8 http://www.webrtc.org/experiments/rtp-hdrext/video-timing
  
  a=sendrecv
  
  a=rtcp-mux
  
  a=rtcp-rsize
  
  a=rtpmap:96 VP8/90000
  
  a=rtcp-fb:96 goog-remb
  
  a=rtcp-fb:96 transport-cc
  
  a=rtcp-fb:96 ccm fir
  
  a=rtcp-fb:96 nack
  
  a=rtcp-fb:96 nack pli
  
  a=rtpmap:97 rtx/90000
  
  a=fmtp:97 apt=96
  
  a=rtpmap:98 VP9/90000
  
  a=rtcp-fb:98 goog-remb
  
  a=rtcp-fb:98 transport-cc
  
  a=rtcp-fb:98 ccm fir
  
  a=rtcp-fb:98 nack
  
  a=rtcp-fb:98 nack pli
  
  a=fmtp:98 x-google-profile-id=0
  
  a=rtpmap:99 rtx/90000
  
  a=fmtp:99 apt=98
  
  a=rtpmap:100 H264/90000
  
  a=rtcp-fb:100 goog-remb
  
  a=rtcp-fb:100 transport-cc
  
  a=rtcp-fb:100 ccm fir
  
  a=rtcp-fb:100 nack
  
  a=rtcp-fb:100 nack pli
  
  a=fmtp:100 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42001f
  
  a=rtpmap:101 rtx/90000
  
  a=fmtp:101 apt=100
  
  a=rtpmap:102 H264/90000
  
  a=rtcp-fb:102 goog-remb
  
  a=rtcp-fb:102 transport-cc
  
  a=rtcp-fb:102 ccm fir
  
  a=rtcp-fb:102 nack
  
  a=rtcp-fb:102 nack pli
  
  a=fmtp:102 level-asymmetry-allowed=1;packetization-mode=0;profile-level-id=42001f
  
  a=rtpmap:122 rtx/90000
  
  a=fmtp:122 apt=102
  
  a=rtpmap:127 H264/90000
  
  a=rtcp-fb:127 goog-remb
  
  a=rtcp-fb:127 transport-cc
  
  a=rtcp-fb:127 ccm fir
  
  a=rtcp-fb:127 nack
  
  a=rtcp-fb:127 nack pli
  
  a=fmtp:127 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f
  
  a=rtpmap:121 rtx/90000
  
  a=fmtp:121 apt=127
  
  a=rtpmap:125 H264/90000
  
  a=rtcp-fb:125 goog-remb
  
  a=rtcp-fb:125 transport-cc
  
  a=rtcp-fb:125 ccm fir
  
  a=rtcp-fb:125 nack
  
  a=rtcp-fb:125 nack pli
  
  a=fmtp:125 level-asymmetry-allowed=1;packetization-mode=0;profile-level-id=42e01f
  
  a=rtpmap:107 rtx/90000
  
  a=fmtp:107 apt=125
  
  a=rtpmap:108 H264/90000
  
  a=rtcp-fb:108 goog-remb
  
  a=rtcp-fb:108 transport-cc
  
  a=rtcp-fb:108 ccm fir
  
  a=rtcp-fb:108 nack
  
  a=rtcp-fb:108 nack pli
  
  a=fmtp:108 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=4d0032
  
  a=rtpmap:109 rtx/90000
  
  a=fmtp:109 apt=108
  
  a=rtpmap:124 H264/90000
  
  a=rtcp-fb:124 goog-remb
  
  a=rtcp-fb:124 transport-cc
  
  a=rtcp-fb:124 ccm fir
  
  a=rtcp-fb:124 nack
  
  a=rtcp-fb:124 nack pli
  
  a=fmtp:124 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=640032
  
  a=rtpmap:120 rtx/90000
  
  a=fmtp:120 apt=124
  
  a=rtpmap:123 red/90000
  
  a=rtpmap:119 rtx/90000
  
  a=fmtp:119 apt=123
  
  a=rtpmap:114 ulpfec/90000
  
  a=ssrc-group:FID 3747062777 227800175
  
  a=ssrc:3747062777 cname:G/WgJ3Ijh9QR84NI
  
  a=ssrc:3747062777 msid:je7s7e9RhWY3cMVjVn8y0ipyOgJnTgu1bMYd e64ec0a4-3603-40d3-a6c6-01c5e60c79ef
  
  a=ssrc:3747062777 mslabel:je7s7e9RhWY3cMVjVn8y0ipyOgJnTgu1bMYd
  
  a=ssrc:3747062777 label:e64ec0a4-3603-40d3-a6c6-01c5e60c79ef
  
  a=ssrc:227800175 cname:G/WgJ3Ijh9QR84NI
  
  a=ssrc:227800175 msid:je7s7e9RhWY3cMVjVn8y0ipyOgJnTgu1bMYd e64ec0a4-3603-40d3-a6c6-01c5e60c79ef
  
  a=ssrc:227800175 mslabel:je7s7e9RhWY3cMVjVn8y0ipyOgJnTgu1bMYd
  
  a=ssrc:227800175 label:e64ec0a4-3603-40d3-a6c6-01c5e60c79ef
  
  
  
  13:32:00 [debug] [peer.cpp(165)] Ivv61MFbOi96l__ZAAAB: On signaling state change: 3
  
  13:32:00 [debug] [peer.cpp(225)] Ivv61MFbOi96l__ZAAAB: On add stream
  
  13:32:00 [debug] [signaler.cpp(139)] -------onAddRemotestream---------
  
  13:32:00 [debug] [peermanager.cpp(64)] Received offer: v=0
  
  o=- 7392103695987858658 2 IN IP4 127.0.0.1
  
  s=-
  
  t=0 0
  
  a=group:BUNDLE audio video
  
  a=msid-semantic: WMS je7s7e9RhWY3cMVjVn8y0ipyOgJnTgu1bMYd
  
  m=audio 9 UDP/TLS/RTP/SAVPF 111 103 104 9 0 8 106 105 13 110 112 113 126
  
  c=IN IP4 0.0.0.0
  
  a=rtcp:9 IN IP4 0.0.0.0
  
  a=ice-ufrag:ICgM
  
  a=ice-pwd:hruHw+Fgaswb+slJ3/eE3Yad
  
  a=ice-options:trickle
  
  a=fingerprint:sha-256 B3:30:19:FA:91:57:CE:2B:7D:60:C4:16:27:FE:8E:CB:76:57:31:C6:75:72:72:87:36:C4:8E:30:91:01:27:D8
  
  a=setup:actpass
  
  a=mid:audio
  
  a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level
  
  a=sendrecv
  
  a=rtcp-mux
  
  a=rtpmap:111 opus/48000/2
  
  a=rtcp-fb:111 transport-cc
  
  a=fmtp:111 minptime=10;useinbandfec=1
  
  a=rtpmap:103 ISAC/16000
  
  a=rtpmap:104 ISAC/32000
  
  a=rtpmap:9 G722/8000
  
  a=rtpmap:0 PCMU/8000
  
  a=rtpmap:8 PCMA/8000
  
  a=rtpmap:106 CN/32000
  
  a=rtpmap:105 CN/16000
  
  a=rtpmap:13 CN/8000
  
  a=rtpmap:110 telephone-event/48000
  
  a=rtpmap:112 telephone-event/32000
  
  a=rtpmap:113 telephone-event/16000
  
  a=rtpmap:126 telephone-event/8000
  
  a=ssrc:1294348972 cname:G/WgJ3Ijh9QR84NI
  
  a=ssrc:1294348972 msid:je7s7e9RhWY3cMVjVn8y0ipyOgJnTgu1bMYd 30683b54-4aef-4c98-bf11-e9f497eddafd
  
  a=ssrc:1294348972 mslabel:je7s7e9RhWY3cMVjVn8y0ipyOgJnTgu1bMYd
  
  a=ssrc:1294348972 label:30683b54-4aef-4c98-bf11-e9f497eddafd
  
  m=video 9 UDP/TLS/RTP/SAVPF 96 97 98 99 100 101 102 122 127 121 125 107 108 109 124 120 123 119 114
  
  c=IN IP4 0.0.0.0
  
  a=rtcp:9 IN IP4 0.0.0.0
  
  a=ice-ufrag:ICgM
  
  a=ice-pwd:hruHw+Fgaswb+slJ3/eE3Yad
  
  a=ice-options:trickle
  
  a=fingerprint:sha-256 B3:30:19:FA:91:57:CE:2B:7D:60:C4:16:27:FE:8E:CB:76:57:31:C6:75:72:72:87:36:C4:8E:30:91:01:27:D8
  
  a=setup:actpass
  
  a=mid:video
  
  a=extmap:2 urn:ietf:params:rtp-hdrext:toffset
  
  a=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
  
  a=extmap:4 urn:3gpp:video-orientation
  
  a=extmap:5 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01
  
  a=extmap:6 http://www.webrtc.org/experiments/rtp-hdrext/playout-delay
  
  a=extmap:7 http://www.webrtc.org/experiments/rtp-hdrext/video-content-type
  
  a=extmap:8 http://www.webrtc.org/experiments/rtp-hdrext/video-timing
  
  a=sendrecv
  
  a=rtcp-mux
  
  a=rtcp-rsize
  
  a=rtpmap:96 VP8/90000
  
  a=rtcp-fb:96 goog-remb
  
  a=rtcp-fb:96 transport-cc
  
  a=rtcp-fb:96 ccm fir
  
  a=rtcp-fb:96 nack
  
  a=rtcp-fb:96 nack pli
  
  a=rtpmap:97 rtx/90000
  
  a=fmtp:97 apt=96
  
  a=rtpmap:98 VP9/90000
  
  a=rtcp-fb:98 goog-remb
  
  a=rtcp-fb:98 transport-cc
  
  a=rtcp-fb:98 ccm fir
  
  a=rtcp-fb:98 nack
  
  a=rtcp-fb:98 nack pli
  
  a=fmtp:98 x-google-profile-id=0
  
  a=rtpmap:99 rtx/90000
  
  a=fmtp:99 apt=98
  
  a=rtpmap:100 H264/90000
  
  a=rtcp-fb:100 goog-remb
  
  a=rtcp-fb:100 transport-cc
  
  a=rtcp-fb:100 ccm fir
  
  a=rtcp-fb:100 nack
  
  a=rtcp-fb:100 nack pli
  
  a=fmtp:100 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42001f
  
  a=rtpmap:101 rtx/90000
  
  a=fmtp:101 apt=100
  
  a=rtpmap:102 H264/90000
  
  a=rtcp-fb:102 goog-remb
  
  a=rtcp-fb:102 transport-cc
  
  a=rtcp-fb:102 ccm fir
  
  a=rtcp-fb:102 nack
  
  a=rtcp-fb:102 nack pli
  
  a=fmtp:102 level-asymmetry-allowed=1;packetization-mode=0;profile-level-id=42001f
  
  a=rtpmap:122 rtx/90000
  
  a=fmtp:122 apt=102
  
  a=rtpmap:127 H264/90000
  
  a=rtcp-fb:127 goog-remb
  
  a=rtcp-fb:127 transport-cc
  
  a=rtcp-fb:127 ccm fir
  
  a=rtcp-fb:127 nack
  
  a=rtcp-fb:127 nack pli
  
  a=fmtp:127 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f
  
  a=rtpmap:121 rtx/90000
  
  a=fmtp:121 apt=127
  
  a=rtpmap:125 H264/90000
  
  a=rtcp-fb:125 goog-remb
  
  a=rtcp-fb:125 transport-cc
  
  a=rtcp-fb:125 ccm fir
  
  a=rtcp-fb:125 nack
  
  a=rtcp-fb:125 nack pli
  
  a=fmtp:125 level-asymmetry-allowed=1;packetization-mode=0;profile-level-id=42e01f
  
  a=rtpmap:107 rtx/90000
  
  a=fmtp:107 apt=125
  
  a=rtpmap:108 H264/90000
  
  a=rtcp-fb:108 goog-remb
  
  a=rtcp-fb:108 transport-cc
  
  a=rtcp-fb:108 ccm fir
  
  a=rtcp-fb:108 nack
  
  a=rtcp-fb:108 nack pli
  
  a=fmtp:108 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=4d0032
  
  a=rtpmap:109 rtx/90000
  
  a=fmtp:109 apt=108
  
  a=rtpmap:124 H264/90000
  
  a=rtcp-fb:124 goog-remb
  
  a=rtcp-fb:124 transport-cc
  
  a=rtcp-fb:124 ccm fir
  
  a=rtcp-fb:124 nack
  
  a=rtcp-fb:124 nack pli
  
  a=fmtp:124 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=640032
  
  a=rtpmap:120 rtx/90000
  
  a=fmtp:120 apt=124
  
  a=rtpmap:123 red/90000
  
  a=rtpmap:119 rtx/90000
  
  a=fmtp:119 apt=123
  
  a=rtpmap:114 ulpfec/90000
  
  a=ssrc-group:FID 3747062777 227800175
  
  a=ssrc:3747062777 cname:G/WgJ3Ijh9QR84NI
  
  a=ssrc:3747062777 msid:je7s7e9RhWY3cMVjVn8y0ipyOgJnTgu1bMYd e64ec0a4-3603-40d3-a6c6-01c5e60c79ef
  
  a=ssrc:3747062777 mslabel:je7s7e9RhWY3cMVjVn8y0ipyOgJnTgu1bMYd
  
  a=ssrc:3747062777 label:e64ec0a4-3603-40d3-a6c6-01c5e60c79ef
  
  a=ssrc:227800175 cname:G/WgJ3Ijh9QR84NI
  
  a=ssrc:227800175 msid:je7s7e9RhWY3cMVjVn8y0ipyOgJnTgu1bMYd e64ec0a4-3603-40d3-a6c6-01c5e60c79ef
  
  a=ssrc:227800175 mslabel:je7s7e9RhWY3cMVjVn8y0ipyOgJnTgu1bMYd
  
  a=ssrc:227800175 label:e64ec0a4-3603-40d3-a6c6-01c5e60c79ef
  
  
  
  13:32:00 [debug] [peer.cpp(329)] On SDP parse success
  
  13:32:00 [debug] [peer.cpp(255)] Ivv61MFbOi96l__ZAAAB: Set local description
  
  13:32:00 [debug] [peer.cpp(165)] Ivv61MFbOi96l__ZAAAB: On signaling state change: 0
  
  13:32:00 [debug] [peer.cpp(329)] On SDP parse success
  
  13:32:00 [debug] [peer.cpp(191)] Ivv61MFbOi96l__ZAAAB: On ICE gathering change: 1
  
  13:32:00 [debug] [signaler.cpp(89)] Peer message: demo|Ivv61MFbOi96l__ZAAAB
  
  13:32:00 [debug] [peermanager.cpp(85)] Received candidate: candidate:2999745851 1 udp 2122260223 192.168.56.1 60548 typ host generation 0 ufrag ICgM network-id 2
  
  13:32:00 [debug] [peer.cpp(185)] Ivv61MFbOi96l__ZAAAB: On ICE connection change: 1
  
  13:32:00 [debug] [signaler.cpp(89)] Peer message: demo|Ivv61MFbOi96l__ZAAAB
  
  13:32:00 [debug] [peermanager.cpp(85)] Received candidate: candidate:564218470 1 udp 2122194687 100.64.100.204 60549 typ host generation 0 ufrag ICgM network-id 1 network-cost 10
  
  13:32:00 [debug] [signaler.cpp(89)] Peer message: demo|Ivv61MFbOi96l__ZAAAB
  
  13:32:00 [debug] [peermanager.cpp(85)] Received candidate: candidate:2999745851 1 udp 2122260223 192.168.56.1 60550 typ host generation 0 ufrag ICgM network-id 2
  
  13:32:00 [debug] [signaler.cpp(89)] Peer message: demo|Ivv61MFbOi96l__ZAAAB
  
  13:32:00 [debug] [peermanager.cpp(85)] Received candidate: candidate:564218470 1 udp 2122194687 100.64.100.204 60551 typ host generation 0 ufrag ICgM network-id 1 network-cost 10
  
  13:32:00 [debug] [peer.cpp(191)] Ivv61MFbOi96l__ZAAAB: On ICE gathering change: 2
  
  13:32:00 [debug] [signaler.cpp(89)] Peer message: demo|Ivv61MFbOi96l__ZAAAB
  
  13:32:00 [debug] [peermanager.cpp(85)] Received candidate: candidate:4233069003 1 tcp 1518280447 192.168.56.1 9 typ host tcptype active generation 0 ufrag ICgM network-id 2
  
  13:32:00 [debug] [signaler.cpp(89)] Peer message: demo|Ivv61MFbOi96l__ZAAAB
  
  13:32:00 [debug] [peermanager.cpp(85)] Received candidate: candidate:1864545942 1 tcp 1518214911 100.64.100.204 9 typ host tcptype active generation 0 ufrag ICgM network-id 1 network-cost 10
  
  13:32:00 [debug] [signaler.cpp(89)] Peer message: demo|Ivv61MFbOi96l__ZAAAB
  
  13:32:00 [debug] [peermanager.cpp(85)] Received candidate: candidate:4233069003 1 tcp 1518280447 192.168.56.1 9 typ host tcptype active generation 0 ufrag ICgM network-id 2
  
  13:32:00 [debug] [signaler.cpp(89)] Peer message: demo|Ivv61MFbOi96l__ZAAAB
  
  13:32:00 [debug] [peermanager.cpp(85)] Received candidate: candidate:1864545942 1 tcp 1518214911 100.64.100.204 9 typ host tcptype active generation 0 ufrag ICgM network-id 1 network-cost 10
  
  13:32:15 [debug] [peer.cpp(185)] Ivv61MFbOi96l__ZAAAB: On ICE connection change: 4```

  Error :

  [libx264 @ 0x7f415c001600] invalid level_idc: 8
  
  12:00:14 [error] [multiplexencoder.cpp(153)] Error: Cannot open the video codec: Generic error in an external library
  
  12:00:14 [error] [streamrecorder.cpp(87)] Failed to init encoder: std::exception

  How to resolve this error ?