Subscribe and display video stream without browser

1

Hi,

We are going to implement the following task:

  1. Publisher broadcasts a Licode stream via browser.
  2. The application subscribes the stream and displays it in a window or
    writes the video into a file.

Guys could you please highlight the points from where we should start with
No. 2?

I’ve checked the Erizo library
https://github.com/ging/licode/tree/master/erizo, it seems to support
concepts of a lower level compare to Room, Stream and Connection.

Do you think we should check the erizoClient code
https://github.com/ging/licode/tree/master/erizo_controller/erizoClient/src to
figure out the internals of the room implementation first and then work
with erizo?

Please advise, thank you!

2

Hi,

Thanks for the answer!

We actually need to write Erizo video stream to an SDI video card using
Blackmagic API (without visible delay preferably), so I was thinking that
to display a stream by a C++ client would be a good first step.

And in the future we also want to have the possibility to broadcast from
non-browser client.

What you would recommend in this case then?On Mon, Nov 3, 2014 at 1:12 PM, Pedro Rodriguez lodoyun@gmail.com wrote:

Hi,

Well, it depends on exactly what you want to do. Currently, Licode can
record videos on the server side. Just take a look at the API
Redirecting…

Do you really need a standalone application to write the video to a file?
If that is the case you have several options:

  • Adapting erizo (WebRTCconnection and the signalling, mostly) to be able
    to receive streams from other erizos
  • Using another OpenSource WebRTC implementation and adapt the signalling
    by taking a look at erizoClient.
    …

Cheers,

–
Pedro Rodriguez

On 03 Nov 2014, at 05:01, Konstantin Aleksandrov iwuvjhdva@gmail.com wrote:

Hi,

We are going to implement the following task:

  1. Publisher broadcasts a Licode stream via browser.
  2. The application subscribes the stream and displays it in a window
    or writes the video into a file.

Guys could you please highlight the points from where we should start with
No. 2?

I’ve checked the Erizo library
https://github.com/ging/licode/tree/master/erizo, it seems to support
concepts of a lower level compare to Room, Stream and Connection.

Do you think we should check the erizoClient code
https://github.com/ging/licode/tree/master/erizo_controller/erizoClient/src to
figure out the internals of the room implementation first and then work
with erizo?

Please advise, thank you!

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Kind regards,
Konstantin Alexandrov

3

Well, again, it depends.

At this point, erizo is not designed to work as a WebRTC client independently from Licode. I would think of a way to make Licode do what I want, possibly by experimenting with ExternalOutput and ExternalInput. You can, of course implement a stand-alone erizo understanding erizoController, erizoClient and erizoJS. You should be able to do that in Javascript alone.

Alternatively, you should be able to make Licode work with any implementation of WebRTC that is compatible with Chrome/Firefox without a lot of work. That is probably a good way to proceed.

Best,–
Pedro Rodriguez

On 03 Nov 2014, at 13:53, Konstantin Aleksandrov iwuvjhdva@gmail.com wrote:

Hi,

Thanks for the answer!

We actually need to write Erizo video stream to an SDI video card using Blackmagic API (without visible delay preferably), so I was thinking that to display a stream by a C++ client would be a good first step.

And in the future we also want to have the possibility to broadcast from non-browser client.

What you would recommend in this case then?

On Mon, Nov 3, 2014 at 1:12 PM, Pedro Rodriguez <lodoyun@gmail.com mailto:lodoyun@gmail.com> wrote:
Hi,

Well, it depends on exactly what you want to do. Currently, Licode can record videos on the server side. Just take a look at the API Redirecting… http://lynckia.com/licode/client-api.html

Do you really need a standalone application to write the video to a file? If that is the case you have several options:

  • Adapting erizo (WebRTCconnection and the signalling, mostly) to be able to receive streams from other erizos
  • Using another OpenSource WebRTC implementation and adapt the signalling by taking a look at erizoClient.
    …

Cheers,

–
Pedro Rodriguez

On 03 Nov 2014, at 05:01, Konstantin Aleksandrov <iwuvjhdva@gmail.com mailto:iwuvjhdva@gmail.com> wrote:

Hi,

We are going to implement the following task:
Publisher broadcasts a Licode stream via browser.
The application subscribes the stream and displays it in a window or writes the video into a file.
Guys could you please highlight the points from where we should start with No. 2?

I’ve checked the Erizo library https://github.com/ging/licode/tree/master/erizo, it seems to support concepts of a lower level compare to Room, Stream and Connection.

Do you think we should check the erizoClient code https://github.com/ging/licode/tree/master/erizo_controller/erizoClient/src to figure out the internals of the room implementation first and then work with erizo?

Please advise, thank you!

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Kind regards,
Konstantin Alexandrov

http://illuzia.net http://illuzia.net/

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4

Hi,

Well, it depends on exactly what you want to do. Currently, Licode can record videos on the server side. Just take a look at the API Redirecting… http://lynckia.com/licode/client-api.html

Do you really need a standalone application to write the video to a file? If that is the case you have several options:

  • Adapting erizo (WebRTCconnection and the signalling, mostly) to be able to receive streams from other erizos
  • Using another OpenSource WebRTC implementation and adapt the signalling by taking a look at erizoClient.
    …

Cheers,–
Pedro Rodriguez

On 03 Nov 2014, at 05:01, Konstantin Aleksandrov iwuvjhdva@gmail.com wrote:

Hi,

We are going to implement the following task:
Publisher broadcasts a Licode stream via browser.
The application subscribes the stream and displays it in a window or writes the video into a file.
Guys could you please highlight the points from where we should start with No. 2?

I’ve checked the Erizo library https://github.com/ging/licode/tree/master/erizo, it seems to support concepts of a lower level compare to Room, Stream and Connection.

Do you think we should check the erizoClient code https://github.com/ging/licode/tree/master/erizo_controller/erizoClient/src to figure out the internals of the room implementation first and then work with erizo?

Please advise, thank you!

–
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