edit READMR

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fduncanh
2022-05-29 13:10:02 -04:00
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<p>For NVIDIA graphics with the proprietary drivers, the <code>nvh264dec</code> plugin (included in gstreamer1.0-plugins-bad since GStreamer-1.18.0) can be used for accelerated video decoding on the NVIDIA GPU after NVIDIAs CUDA driver <code>libcuda.so</code> is installed. This plugin should be used with options <code>uxplay -vd nvh264dec -vs glimagesink</code>. For GStreamer-1.16.3 or earlier, the plugin is called <code>nvdec</code>, and must be built by the user: see <a href="https://github.com/FDH2/UxPlay/wiki/NVIDIA-nvdec-and-nvenc-plugins">these instructions</a>. This older form of the NVIDIA plugin should be used with the <code>-vd nvdec -vs glimagesink</code> uxplay options.</p>
<ul>
<li><p><strong>GPU Support for Raspberry Pi</strong></p>
<p>Raspberry Pi (RPi) computers can run UxPlay with software decoding of h264 video (by adding <code>-avdec</code> to the uxplay options) but this usually has unacceptable latency, and hardware-accelerated decoding by the Pis built-in Broadcom GPU should be used. RPi OS (Bullseye) has stopped supporting the unmaintained 32-bit-only omx (OpenMAX) driver used for this by <a href="http://github.com/FD-/RPiPlay">RPiPlay</a>, in favor of v4l2 (Video4Linux2). Fixes to the GStreamer v4l2 plugin that allow it to work with UxPlay on RPi are now in the GStreamer development branch, and will be available in the upcoming GStreamer-1.22 release, but a (partial) backport (as <code>gstreamer1.0-plugins-good-1.18.4-2+~rpt1</code>) has already appeared in RPi OS updates. Until the promised full update appears, or if you are using a different distribution, you can find <a href="https://github.com/FDH2/UxPlay/wiki/Gstreamer-Video4Linux2-plugin-patches">patching instructions for GStreamer</a> in the <a href="https://github.com/FDH2/UxPlay/wiki">UxPlay Wiki</a>. Patches are available for all GStreamer releases 1.18.4 and later.</p></li>
<p>Raspberry Pi (RPi) computers can run UxPlay with software decoding of h264 video (by adding <code>-avdec</code> to the uxplay options) but this usually has unacceptable latency, and hardware-accelerated decoding by the Pis built-in Broadcom GPU should be used. RPi OS (Bullseye) has stopped supporting the unmaintained 32-bit-only omx (OpenMAX) driver used for this by <a href="http://github.com/FD-/RPiPlay">RPiPlay</a>, in favor of v4l2 (Video4Linux2). Fixes to the GStreamer v4l2 plugin that allow it to work with UxPlay on RPi are now in the GStreamer development branch, and will be available in the upcoming GStreamer-1.22 release, A (partial) backport (as <code>gstreamer1.0-plugins-good-1.18.4-2+~rpt1</code>) has already appeared in RPi OS updates. Until the full update appears, or if you are using a different distribution, you can find <a href="https://github.com/FDH2/UxPlay/wiki/Gstreamer-Video4Linux2-plugin-patches">patching instructions for GStreamer</a> in the <a href="https://github.com/FDH2/UxPlay/wiki">UxPlay Wiki</a>. Patches are available for all GStreamer releases 1.18.4 and later.</p></li>
</ul>
<h3 id="note-to-packagers-openssl-3.0.0-solves-gpl-v3-license-issues.">Note to packagers: OpenSSL-3.0.0 solves GPL v3 license issues.</h3>
<p>Some Linux distributions such as Debian do not allow distribution of compiled GPL code linked to OpenSSL-1.1.1 because its “dual OpenSSL/SSLeay” license has some incompatibilities with GPL, unless all code authors have explicitly given an “exception” to allow such linking (the historical origins of UxPlay make this impossible to obtain). Other distributions treat OpenSSL as a “System Library” which the GPL allows linking to.</p>

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@@ -114,8 +114,8 @@ the `-vd nvdec -vs glimagesink` uxplay options.
(Video4Linux2). Fixes to the GStreamer v4l2 plugin that allow it to
work with UxPlay on RPi are now in the GStreamer development
branch, and will be available in the upcoming GStreamer-1.22 release,
but a (partial) backport (as `gstreamer1.0-plugins-good-1.18.4-2+~rpt1`)
has already appeared in RPi OS updates. Until the promised full update
A (partial) backport (as `gstreamer1.0-plugins-good-1.18.4-2+~rpt1`)
has already appeared in RPi OS updates. Until the full update
appears, or if you are using a different distribution, you can find
[patching instructions for GStreamer](https://github.com/FDH2/UxPlay/wiki/Gstreamer-Video4Linux2-plugin-patches)
in the [UxPlay Wiki](https://github.com/FDH2/UxPlay/wiki). Patches

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@@ -124,11 +124,10 @@ This older form of the NVIDIA plugin should be used with the
favor of v4l2 (Video4Linux2). Fixes to the GStreamer v4l2 plugin
that allow it to work with UxPlay on RPi are now in the GStreamer
development branch, and will be available in the upcoming
GStreamer-1.22 release, but a (partial) backport (as
GStreamer-1.22 release, A (partial) backport (as
`gstreamer1.0-plugins-good-1.18.4-2+~rpt1`) has already appeared in
RPi OS updates. Until the promised full update appears, or if you
are using a different distribution, you can find [patching
instructions for
RPi OS updates. Until the full update appears, or if you are using a
different distribution, you can find [patching instructions for
GStreamer](https://github.com/FDH2/UxPlay/wiki/Gstreamer-Video4Linux2-plugin-patches)
in the [UxPlay Wiki](https://github.com/FDH2/UxPlay/wiki). Patches
are available for all GStreamer releases 1.18.4 and later.