# Streaming a multicast stream target to gstreamer hlssink **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [November 26, 2021, 9:59am UTC](https://community.wowza.com/t/streaming-a-multicast-stream-target-to-gstreamer-hlssink/94222 "2021-11-26T09:59:03Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Daniel\_Rossi](https://avatars.discourse-cdn.com/v4/letter/d/e95f7d/32.png) [@Daniel\_Rossi](https://community.wowza.com/u/Daniel_Rossi)\ **Post date:** [November 26, 2021, 9:59am UTC](https://community.wowza.com/t/streaming-a-multicast-stream-target-to-gstreamer-hlssink/94222/1 "2021-11-26T09:59:03Z")
I am trying to research a proxy player for UDP multicast. And attempting to use gstreamer for this purpose. However I can’t figure out the right command for wowza to convert to hls. It wont generate a playlist or even segments. Playing it back causes dropped frames. VLC playback is ok. What is the required stream target settings to work with gstreamer ? This wont generate anything gst-launch-1.0 -v udpsrc multicast-group=224.0.0.0 auto-multicast=true port=4000 ! decodebin3 ! hlssink max-files=5 playlist-root=http://localhost:8081/ location=D:/www/hls/hlssink.%05d.ts playlist-location=D:/www/hls/playlist.m3u8 This shows output but it drops frames and not sure if I get audio with it. gst-launch-1.0 udpsrc multicast-group=224.0.0.0 auto-multicast=true port=4000 buffer-size=100000 ! decodebin3 use-buffering=true max-size-buffers=32 max-size-bytes=1000000 sync=false ! glimagesink ---
**Author:** ![Daniel\_Rossi](https://avatars.discourse-cdn.com/v4/letter/d/e95f7d/32.png) [@Daniel\_Rossi](https://community.wowza.com/u/Daniel_Rossi)\ **Post date:** [November 26, 2021, 10:15am UTC](https://community.wowza.com/t/streaming-a-multicast-stream-target-to-gstreamer-hlssink/94222/2 "2021-11-26T10:15:59Z")
It’s strange ff-play is OK but audio cuts out now and then. ./ffplay -i udp://224.0.0.0:4000 this works but not for gstreamer ./ffmpeg -i udp://224.0.0.0:4000 -analyzeduration 30M -probesize 30M -f hls -hls\_time 4 -hls\_playlist\_type event stream.m3u8