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README.html
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<h3 id="possibility-for-using-hardware-accelerated-h264-video-decoding-if-available.">Possibility for using hardware-accelerated h264 video-decoding, if available.</h3>
<p>UxPlay uses <a href="https://gstreamer.freedesktop.org">GStreamer</a> Plugins for rendering audio and video, This means that video and audio are supported “out of the box”, using a choice of plugins. AirPlay streams video in h264 format: gstreamer decoding is plugin agnostic, and uses accelerated GPU hardware h264 decoders if available; if not, software decoding is used.</p>
<p>For systems with Intel or AMD integrated graphics, hardware GPU decoding with the gstreamer VAAPI plugin is preferable. VAAPI is open-source, and in addition to Intel and AMD graphics, the open-source “Nouveau” drivers for NVIDIA graphics are also in principle supported: see <a href="https://nouveau.freedesktop.org/VideoAcceleration.html">here</a>, which requires VAAPI to be supplemented with firmware extracted from the proprietary NVIDIA drivers.</p>
<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 NVIDIA’s 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>
<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 NVIDIA’s 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>, and replace <code>nvh264dec</code> by <code>nvdec</code> when using.</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 Pi’s 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>

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README.md
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@@ -99,9 +99,7 @@ This plugin should be used with options
`uxplay -vd nvh264dec -vs glimagesink`. For GStreamer-1.16.3
or earlier, the
plugin is called `nvdec`, and must be built by the user:
see [these instructions](https://github.com/FDH2/UxPlay/wiki/NVIDIA-nvdec-and-nvenc-plugins).
This older form of the NVIDIA plugin should be used with
the `-vd nvdec -vs glimagesink` uxplay options.
see [these instructions](https://github.com/FDH2/UxPlay/wiki/NVIDIA-nvdec-and-nvenc-plugins), and replace `nvh264dec` by `nvdec` when using.
* **GPU Support for Raspberry Pi**

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README.txt
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@@ -109,9 +109,8 @@ CUDA driver `libcuda.so` is installed. This plugin should be used with
options `uxplay -vd nvh264dec -vs glimagesink`. For GStreamer-1.16.3 or
earlier, the plugin is called `nvdec`, and must be built by the user:
see [these
instructions](https://github.com/FDH2/UxPlay/wiki/NVIDIA-nvdec-and-nvenc-plugins).
This older form of the NVIDIA plugin should be used with the
`-vd nvdec -vs glimagesink` uxplay options.
instructions](https://github.com/FDH2/UxPlay/wiki/NVIDIA-nvdec-and-nvenc-plugins),
and replace `nvh264dec` by `nvdec` when using.
- **GPU Support for Raspberry Pi**