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fd4cd3d85f
And allow running parallel pipelines, scenarios, and pass data from one to the other using appsrc/appsink Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5803>
67 lines
1.8 KiB
Text
67 lines
1.8 KiB
Text
set-globals,
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appsrc_props="handle-segment-change=true \
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automatic-eos=false \
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min-latency=0 \
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max-latency=-1 \
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format=time \
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is-live=true \
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max-buffers=0 \
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max-bytes=0 \
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max-time=5000000000 \
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leaky-type=downstream"
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meta,
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args = {
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"appsrc name=src $(appsrc_props) ! videoconvert ! $(videosink) name=sink",
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},
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handles-states=true
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# Start a new pipeline with an `appsink`
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create-sub-pipeline,
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name=subpipeline,
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desc="videotestsrc ! timeoverlay ! appsink name=appsink sync=true max-buffers=10 drop=true",
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scenario={
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[meta, ignore-eos=true],
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}
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# Pull sample from the sub pipeline and push it into the main pipeline appsrc
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# as soon as the pipeline will start
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appsrc-push, target-element-name=src, from-appsink="subpipeline/appsink"
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# And preroll the pipeline
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play
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# Seek on the sub pipeline
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run-on-sub-pipeline,
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pipeline-name=subpipeline,
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action=[seek, flags=accurate+flush, start=5.0, stop=15.0]
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# Then forward 10 buffers from sub pipeline to main pipeline
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foreach,
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i=[0, 10],
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actions = {
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[
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appsrc-push, target-element-name=src, from-appsink="subpipeline/appsink",
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],
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}
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# And seek the sub pipeline again
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run-on-sub-pipeline,
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pipeline-name=subpipeline,
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action=[seek, flags=accurate+flush, start=1.0, stop=5.0]
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# And forward 10 more buffers from sub pipeline to main pipeline
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foreach,
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i=[0, 10],
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actions = {
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[
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appsrc-push, target-element-name=src, from-appsink="subpipeline/appsink",
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],
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}
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# Stop the sub pipeline
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run-on-sub-pipeline,
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pipeline-name=subpipeline,
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action=[stop]
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# And finish everything by marking main pipeline as EOS
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appsrc-eos, target-element-name=src
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