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47 lines
1.5 KiB
Markdown
47 lines
1.5 KiB
Markdown
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# Web page capture (WPE)
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The [wpesrc](https://gstreamer.freedesktop.org/documentation/wpe/wpesrc.html?gi-language=python) plugin can take a web page, and offer it as a GStreamer source. This allows you to:
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* Show web pages on screen, and
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* Use web pages as a means of doing graphics.
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The `wpesrc` plugin isn't frequently used. To see if you have it installed:
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```
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gst-inspect-1.0 | grep wpe
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```
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## Installing
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MacOS: The `wpesrc` plugin isn't part of the Homebrew build, unortunately.
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Ubuntu: `wpesrc` has a separate package called `gstreamer1.0-wpe`. So to install:
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```
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sudo apt-get install gstreamer1.0-wpe
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```
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## Using
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TODO
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### Streaming to SRT
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```
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LIBGL_ALWAYS_SOFTWARE=true gst-launch-1.0 -v wpevideosrc location="https://www.bbc.co.uk" ! videoconvert ! x264enc tune=zerolatency ! \
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video/x-h264, profile=high ! mpegtsmux ! srtsink uri=srt://:8889 wait-for-connection=false
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```
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### Without GPU
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Setting `LIBGL_ALWAYS_SOFTWARE=true` allows the `wpserc` element to work without GPU. This can lead to issues if the format is not set to `BGRA`. An example, sending a web page as a live stream to an RTMP server:
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```
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LIBGL_ALWAYS_SOFTWARE=true gst-launch-1.0 \
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wpevideosrc location="https://en.wikipedia.org/wiki/Main_Page" \
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! videoconvert ! videoscale ! videorate \
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! "video/x-raw, format=BGRA, width=854, height=480, framerate=30/1" \
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! videoconvert ! queue ! x264enc speed-preset=1 ! flvmux name=muxer \
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! rtmpsink location="$RTMP_DEST live=1"
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```
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