GstRtspSink - Dual H264 Video Streaming

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This example publishes two independent H264 streams from one rtspsink element instance. It is useful when different clients must consume different video feeds through separate RTSP mappings.

Server-side Pipeline

The following pipeline sends two different H264 streams through two different mappings: stream1 and stream2. Any of them can be accessed independently.

PORT=12345
MAPPING1=/stream1
MAPPING2=/stream2

gst-launch-1.0 rtspsink name=sink service=$PORT \
v4l2src ! queue ! videoconvert ! x264enc tune=zerolatency ! h264parse ! capsfilter caps="video/x-h264, mapping=${MAPPING1}" ! sink. \
videotestsrc ! x264enc tune=zerolatency ! h264parse ! capsfilter caps="video/x-h264, mapping=${MAPPING2}" ! sink.

Client-side

VLC

IP_ADDRESS=127.0.0.1
PORT=12345
MAPPING1=stream1
MAPPING2=stream2

# Stream 1
vlc rtsp://${IP_ADDRESS}:${PORT}/${MAPPING1}

# Stream 2
vlc rtsp://${IP_ADDRESS}:${PORT}/${MAPPING2}

GStreamer

IP_ADDRESS=127.0.0.1
PORT=12345
MAPPING1=stream1
MAPPING2=stream2

# Stream 1
gst-launch-1.0 rtspsrc location=rtsp://${IP_ADDRESS}:${PORT}/${MAPPING1} ! rtph264depay ! h264parse ! avdec_h264 ! queue ! autovideosink

# Stream 2
gst-launch-1.0 rtspsrc location=rtsp://${IP_ADDRESS}:${PORT}/${MAPPING2} ! rtph264depay ! h264parse ! avdec_h264 ! queue ! autovideosink

MPlayer

IP_ADDRESS=127.0.0.1
PORT=12345
MAPPING1=stream1
MAPPING2=stream2

# Stream 1
mplayer rtsp://${IP_ADDRESS}:${PORT}/${MAPPING1}

# Stream 2
mplayer rtsp://${IP_ADDRESS}:${PORT}/${MAPPING2}

Totem

IP_ADDRESS=127.0.0.1
PORT=12345
MAPPING1=stream1
MAPPING2=stream2

# Stream 1
totem rtsp://${IP_ADDRESS}:${PORT}/${MAPPING1}

# Stream 2
totem rtsp://${IP_ADDRESS}:${PORT}/${MAPPING2}

When to use this layout

Use separate mappings when each client should open only the feed it needs. This avoids coupling unrelated streams under one RTSP path.

Summary

One rtspsink element can expose two different H264 URLs from the same process, which is useful for dual-camera or mixed preview-and-monitoring designs.

Problems running the pipelines shown on this page? Please see our GStreamer Debugging guide for help.

Related pages

Previous: Advanced examples

Index

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