GStreamer: Difference between revisions
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== Installing via nixpkgs == | == Installing via nixpkgs == | ||
In Nix as in other Linux distributions those tools and plugins are split into separate packages, which you can bring together with a custom Nix shell environment: | In Nix as in other Linux distributions those tools and plugins are split into separate packages, which you can bring together with a custom Nix shell environment: | ||
{{File|3={ | |||
{ | |||
description = "A GStreamer development flake"; | description = "A GStreamer development flake"; | ||
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}; | }; | ||
}; | }; | ||
} | }|name=/etc/nixos/flake.nix|lang=nix}} | ||
To activate this environment in your terminal run | To activate this environment in your terminal run | ||
<syntaxhighlight lang= | <syntaxhighlight lang=console> | ||
$ nix develop | $ nix develop | ||
</syntaxhighlight> | </syntaxhighlight> | ||
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== Test the installation == | == Test the installation == | ||
You can test that the <code>gst_all_1.gstreamer</code> tools are available by running a dummy pipeline | You can test that the <code>gst_all_1.gstreamer</code> tools are available by running a dummy pipeline | ||
<syntaxhighlight lang= | <syntaxhighlight lang=console> | ||
$ gst-launch-1.0 videotestsrc ! videoconvert ! autovideosink | $ gst-launch-1.0 videotestsrc ! videoconvert ! autovideosink | ||
</syntaxhighlight> | </syntaxhighlight> | ||
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You can test that the plugins like from <code>gst_all_1.gst-plugins-base</code> are available to the higher level tools by inspecting such a base plugin like <code>filesrc</code> with | You can test that the plugins like from <code>gst_all_1.gst-plugins-base</code> are available to the higher level tools by inspecting such a base plugin like <code>filesrc</code> with | ||
<syntaxhighlight lang= | <syntaxhighlight lang=console> | ||
$ gst-inspect-1.0 filesrc | $ gst-inspect-1.0 filesrc | ||
Factory Details: | Factory Details: | ||
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or by using it in a pipeline. Here, we could play a video from the local machine with | or by using it in a pipeline. Here, we could play a video from the local machine with | ||
<syntaxhighlight lang= | <syntaxhighlight lang=console> | ||
$ gst-launch-1.0 filesrc location=my_video.mp4 ! videoconvert ! autovideosink | $ gst-launch-1.0 filesrc location=my_video.mp4 ! videoconvert ! autovideosink | ||
</syntaxhighlight> | </syntaxhighlight> | ||
If the plugins are not correctly made available to the higher level tools, you'll get an error | If the plugins are not correctly made available to the higher level tools, you'll get an error | ||
<syntaxhighlight lang= | <syntaxhighlight lang=console> | ||
$ gst-inspect-1.0 filesrc | $ gst-inspect-1.0 filesrc | ||
No such element or plugin 'filesrc' | No such element or plugin 'filesrc' | ||
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Adding the following export to your script, sets "gstreamer" and "gst-plugins-base" and "gst-plugins-good" paths. Similarly you can add any other "gst-plugins" package as well. | Adding the following export to your script, sets "gstreamer" and "gst-plugins-base" and "gst-plugins-good" paths. Similarly you can add any other "gst-plugins" package as well. | ||
<syntaxhighlight lang=" | <syntaxhighlight lang="bash"> | ||
export GST_PLUGIN_SYSTEM_PATH_1_0="${gst_all_1.gstreamer.out}/lib/gstreamer-1.0:${gst_all_1.gst-plugins-base}/lib/gstreamer-1.0:${gst_all_1.gst-plugins-good}/lib/gstreamer-1.0" | export GST_PLUGIN_SYSTEM_PATH_1_0="${gst_all_1.gstreamer.out}/lib/gstreamer-1.0:${gst_all_1.gst-plugins-base}/lib/gstreamer-1.0:${gst_all_1.gst-plugins-good}/lib/gstreamer-1.0" | ||
</syntaxhighlight>Note: "gstreamer.out" is the derivative that contains "/lib" directory for that package. | </syntaxhighlight>Note: "gstreamer.out" is the derivative that contains "/lib" directory for that package. | ||
<references /> | <references /> | ||
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To fix the issue I found the following solutions: | To fix the issue I found the following solutions: | ||
* | * Using <code>nix-shell</code>: | ||
nix-shell -p gst_all_1.gstreamer gst_all_1.gst-plugins-base gst_all_1.gst-plugins-good gst_all_1.gst-plugins-bad gst_all_1.gst-plugins-ugly gst_all_1.gst-libav gst_all_1.gst-vaapi --run "nautilus" | <syntaxhighlight lang=console> | ||
$ nix-shell -p gst_all_1.gstreamer gst_all_1.gst-plugins-base gst_all_1.gst-plugins-good gst_all_1.gst-plugins-bad gst_all_1.gst-plugins-ugly gst_all_1.gst-libav gst_all_1.gst-vaapi --run "nautilus" | |||
</syntaxhighlight> | </syntaxhighlight> | ||
* | * Using the environment variable "<code>GST_PLUGIN_PATH</code>":[[File:Screenshot From 2025-03-28 12-51-31.png|thumb|"Audio and Video Properties" of "Properties" window of nautilus after fix]]{{File|3={ config, pkgs, ... }: | ||
{ | { | ||
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GST_PLUGIN_PATH = "/run/current-system/sw/lib/gstreamer-1.0/"; | GST_PLUGIN_PATH = "/run/current-system/sw/lib/gstreamer-1.0/"; | ||
}; | }; | ||
} | }|name=/etc/nixos/configuration.nix|lang=nix}} {{Evaluate|boot}} | ||
[[Category:Video]] | |||
[[Category:Audio]] | |||