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OpenTalk Mixer
Content
Purpose
This is the recording compositor to be used in OpenTalk Recorder.
Composites
Speaker Composite
The recording composite speaker has slightly different look than the one used in the participants view because this study is a straight forward approach and recording composites might look different in either way because recording (or streaming) presentation usually is different to what each participant is setting up for himself. Additionally we can test if inserting text overlays with title, a clock or other useful information is wishful in recordings.
Grid Composite
A composite placing all visible participants in a grid.
Start DASH demo
Please try the following line which starts a demo which uses an existing crate test to generate DASH output of a scene with one participant (simulated by a test video):
RUST_LOG=trace & ;
If the cargo build lasts longer then 1s try to precompile or increase the sleep time in the line above.
GStreamer Pipeline
Further Documentation
There is a lot of rust inline documentation which you might compile using this line:
Tests
There are some integration and a few unit tests. TODO: They currently do not succeed if they are started in parallel!
The starting point to that documentation will then be /recorder/target/doc/compositor/index.html.
ENV variables
DISPLAYGST_DEBUG_DUMP_DOT_DIRUSER_TESTUSE_DISPLAYUSE_VIDEOBE_SLOW
Links
Helpful links are listed here: