Using a transcoder to convert WebRTC to SRT

Wowza Streaming Engine
1

Hi,

I’m trying to transcode webRTC to SRT with no success. I use a trnscoder with video set to “Passthrough” and audio set to AAC. Unfortunately, If i set the transcoded stream as source for a stream target, i always get “error”. Is there a way to get that work.

I managed to transcode that stream in MPEG-TS. That seems to work, although i have problems like video freezes and pixelation.

Do you have any idea?

Thank you very much in advance,
Davide

2

Are you able to play the stream directly from the Wowza Streaming Engine, e.g. with VLC or ffplay over RTMP, RTSP, MPEG-DASH or HLS?

3

Hi Karel,

I checked that. VLC plays the stream over UDP: udp://@xxx.xxx.xxx.xxx:64700/mystream

4

But can VLC play the stream from Wowza? Like rtmp://{wowza-ip}/live/mystream or http://{wowza-ip}:1935/live/mystream/playlist.m3u8

5

Hi Karel,

yes, I can play http://{wowza-ip}:1935/live/mystream/playlist.m3u8 BUT some strange thing happens: I see the stream but it alternates with a black screen. A bit of the stream followed by a black screen…i have no idea why…

6

If your test playback directly from the server over HLS and RTMP isn’t stable either then it’s probably something with the ingest; maybe your WebRTC incoming stream isn’t stable?

7

Karel, now it’s OK. The problem was a port that should have been open but it wasn’t. In addition to this, by using srt I have no problems at all with the video quality. The only thing is that I don’t have audio… I will check it.

Thank you very much for your support.
Davide

1 Like
8

Good to hear it has been solved, @Davide_Calde. Good luck with your project!