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58 lines
2.7 KiB
Markdown
58 lines
2.7 KiB
Markdown
---
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short-description: Tool to test GStreamer components
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...
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# gst-validate
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`gst-validate` is the simplest `gst-launch`-like pipeline launcher
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running inside GstValidate monitoring infrastructure. Monitors are added
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to it to identify issues in the used elements. At the end it will print
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a report with some information about all the issues encountered during
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its run. To view issues as they are detected, set the environment
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variable `GST_DEBUG=validate:2`{.shell} and they will get printed in the
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GStreamer debug log. You can basically run any [GstPipeline](GstPipeline) pipeline
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using this tool. If you are not familiar with `gst-launch` syntax,
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please refer to `gst-launch`'s documentation.
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Simple playback pipeline:
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gst-validate-1.0 playbin uri=file:///path/to/some/media/file
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Transcoding pipeline:
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gst-validate-1.0 filesrc location=/media/file/location ! qtdemux name=d ! queue \
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! x264enc ! h264parse ! mpegtsmux name=m ! progressreport \
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! filesink location=/root/test.ts d. ! queue ! faac ! m.
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It will list each issue that has been encountered during the execution
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of the specified pipeline in a human readable report like:
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issue : buffer is out of the segment range Detected on theoradec0.srcpad at 0:00:00.096556426
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Details : buffer is out of segment and shouldn't be pushed. Timestamp: 0:00:25.000 - duration: 0:00:00.040 Range: 0:00:00.000 - 0:00:04.520
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Description : buffer being pushed is out of the current segment's start-stop range. Meaning it is going to be discarded downstream without any use
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The return code of the process will be 18 in case a `CRITICAL` issue has
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been found.
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# Invocation
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`gst-validate` takes a mandatory description of the pipeline to launch,
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similar to `gst-launch`, and some extra options.
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## Options
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* `--set-scenario`: Let you set a scenario, it can be a full path to a scenario file or
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the name of the scenario (name of the file without the `.scenario`
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extension).
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* `-l`, `--list-scenarios`: List the avalaible scenarios that can be run.
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* `--scenarios-defs-output-file`: The output file to store scenarios details. Implies
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`--list-scenario`.
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* `-t`, `--inspect-action-type`: Inspect the avalaible action types with which to write scenarios if
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no parameter passed, it will list all avalaible action types
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otherwize will print the full description of the wanted types.
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* `--set-media-info`: Set a media\_info XML file descriptor to share information about the
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media file that will be reproduced.
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* `--set-configs`: Let you set a config scenario. The scenario needs to be set as
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`config`. You can specify a list of scenarios separated by "`:`". It
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will override the GST\_VALIDATE\_SCENARIO environment variable.
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