This application ingests one MPEG-TS over SRT stream and outputs to WebRTC recvonly clients using WHEP as signaling protocol. Example of use cases:
- Browser based confidence monitor of an incoming stream
- Program or preview output monitor in a browser or tablet
Supports SRT streams in caller and listener mode. Runs on MacOS and Ubuntu.
To quickly try it out on Linux machine, you can use the Docker Container image published on Docker Hub:
docker run --rm --network host eyevinntechnology/srt-whep \
-i <SRT_SOURCE_IP>:<SRT_SOURCE_PORT> \
-o 0.0.0.0:8888 \
-p 8000 -s caller
It will connect to SRT on <SRT_SOURCE_IP>:<SRT_SOURCE_PORT> in caller mode thus assuming above that the <SRT_SOURCE_IP> is in listener mode.
WHEP endpoint is available at http://localhost:8000/channel. You can then play it for example using the WHEP Player. Possible issues are discussed in Issues.
Requirements:
- XCode command line tools installed
- GStreamer binaries from GStreamer's website installed
- Rust and cargo installed
Make sure you have the following env variables defined:
export PATH=$PATH:/Library/Frameworks/GStreamer.framework/Versions/Current/bin
export PKG_CONFIG_PATH=/Library/Frameworks/GStreamer.framework/Versions/Current/lib/pkgconfig
export GST_PLUGIN_PATH=/Library/Frameworks/GStreamer.framework/Versions/Current/lib:$GST_PLUGIN_PATH
export DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:$GST_PLUGIN_PATH
Build with Cargo
cargo check
cargo install bunyan # Optional, for pretty printing of logs
cargo build --release
The binary is then available at ./target/release/srt-whep. See below for how to run it.
Requirements:
- Rust and cargo installed
Install GStreamer build dependencies.
apt-get update
apt-get -y install build-essential \
curl \
pkg-config \
libssl-dev \
libunwind-dev \
libgstreamer1.0-dev \
libgstreamer-plugins-base1.0-dev \
libgstreamer-plugins-bad1.0-dev \
gstreamer1.0-plugins-base \
gstreamer1.0-plugins-good \
gstreamer1.0-plugins-bad \
gstreamer1.0-plugins-ugly \
gstreamer1.0-libav \
gstreamer1.0-tools \
gstreamer1.0-x \
gstreamer1.0-alsa \
gstreamer1.0-gl \
gstreamer1.0-gtk3 \
gstreamer1.0-qt5 \
gstreamer1.0-pulseaudio \
gstreamer1.0-nice
Build with Cargo
cargo check
cargo install bunyan # Optional, for pretty printing of logs
cargo build --release
The binary is then available at ./target/release/srt-whep. See below for how to run it.
Build container (uses multi-stage builds):
docker build -t srt-whep:dev .
Container must be running in host-mode (only works on Linux hosts, and is not supported on Docker Desktop for Mac, Docker Desktop for Windows)
docker run --rm --network host srt-whep:dev \
-i <SRT_SOURCE_IP>:<SRT_SOURCE_PORT> \
-o 0.0.0.0:8888 \
-p 8000 -s caller
To ingest an SRT stream with address srt://127.0.0.1:1234 in listener mode and expose WHEP endpoint on port 8000 run the application with this command.
cargo run --release -- -i 127.0.0.1:1234 -o 127.0.0.1:8888 -p 8000 -s caller | bunyan
This will also make a pass-through of the SRT stream on srt://127.0.0.1:8888 in listener mode. To watch the pass-through stream in ffplay, VLC or GStreamer you run:
ffplay srt://127.0.0.1:8888
# or
gst-launch-1.0 playbin uri="srt://127.0.0.1:8888"
WHEP endpoint is available then at http://localhost:8000/channel. You can then play it for example using the WHEP Player.
If the SRT stream to ingest is in caller mode you run the application with this command.
cargo run --release -- -i 127.0.0.1:1234 -o 127.0.0.1:8888 -p 8000 -s listener | bunyan
This also expects the SRT address 127.0.0.1:8888 to be running in caller mode.
-
If you doubt a plugin is missing you can check it using
gst-inspect-1.0 <plugin>. For example,gst-inspect-1.0 srtsink. -
It's possible to generate a test SRT stream using GStreamer for debugging purpose. Please refer to macOS or Ubuntu.
-
To get more verbose logging you can set the
GST_DEBUGenvironment variable to2. For example, run in terminal:export GST_DEBUG=2
All relevant discussions are tracked in issues. Please feel free to open a new issue if you have any questions or problems.
- For Mac users, please notice that only H264 video of
constrained-baselineprofile is supported by Safari. - For Ubuntu users, please notice that H264 video of
highprofile is not supported by broswers (baselineormainis supported). Related discussions can be found here. - For Ubuntu users, please notice issues related to hostname resolution. It can be dodged by disabling
Anonymize local IPs exposed by WebRTCon Chrome. Related discussions can be found here - We don't support the client side init mode of WHEP. This is under discussion but as the server knows what streams it has we believe the server should provide the SDP offer. Related discussions can be found here.
Copyright 2023 Eyevinn Technology AB
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
Join our community on Slack where you can post any questions regarding any of our open source projects. Eyevinn's consulting business can also offer you:
- Further development of this component
- Customization and integration of this component into your platform
- Support and maintenance agreement
Contact [email protected] if you are interested.
Eyevinn Technology is an independent consultant firm specialized in video and streaming. Independent in a way that we are not commercially tied to any platform or technology vendor.
At Eyevinn, every software developer consultant has a dedicated budget reserved for open source development and contribution to the open source community. This give us room for innovation, team building and personal competence development. And also gives us as a company a way to contribute back to the open source community.
Want to know more about Eyevinn and how it is to work here. Contact us at [email protected]!