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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 integrated graphics, hardware GPU decoding with the gstreamer VAAPI plugin is preferable. VAAPI is open-source, and in addition to Intel, can support some AMD GPU’s (the open-source “Nouveau” drivers for NVIDIA graphics are also in principle supported when VAAPI is 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 or earlier, the plugin is called <code>nvdec</code>, and must be built by the user, using header files from NVIDIA’s proprietary <a href="https://docs.nvidia.com/video-technologies/video-codec-sdk/nvdec-video-decoder-api-prog-guide/">Video Codec SDK</a>: see <a href="https://github.com/FDH2/UxPlay/wiki/NVIDIA-nvdec-and-nvenc-plugins">these instructions</a>. This older form of the 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>. This older form of the 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 (options <code>uxplay -rpi -avdec</code>) 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 abandoned the omx (OpenMAX) driver used till now for this by <a href="http://github.com/FD-/RPiPlay">RPiPlay</a>, in favor of v4l2 (Video4Linux2). The GStreamer Video4Linux2 plugin only works with UxPlay since GStreamer-1.21.0.0 on the development branch, but a (partial) backport to 1.18.4 for RPi OS (Bullseye) has already appeared in current updates. In case the full update has not yet appeared, or you are using a different distribution, you can find <a href="https://github.com/FDH2/UxPlay/wiki/Gstreamer-Video4Linux2-plugin-patches">patching instructions</a> in the <a href="https://github.com/FDH2/UxPlay/wiki">UxPlay Wiki</a>. Use the options <code>uxplay -rpi</code> ( or <code>uxplay -rpi -vs kmssink</code> on RPi OS Lite with no X11) with the patched GStreamer. Patches for GStreamer-1.18.5 (used in Ubuntu 21.10 for RPi) and GStreamer-1.20.0 (used in Manjaro for RPi) are also available there.</p></li>

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README.md
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@@ -72,11 +72,11 @@ graphics are also in principle supported when VAAPI is supplemented with firmwar
For NVIDIA graphics with the proprietary drivers, the `nvh264dec` 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 `libcuda.so` is installed. This plugin should be used with options
`uxplay -vd nvh264dec -vs glimagesink`. For GStreamer-1.16 or earlier, the
plugin is called `nvdec`, and must be built by the user, using header files
from NVIDIA's
proprietary [Video Codec SDK](https://docs.nvidia.com/video-technologies/video-codec-sdk/nvdec-video-decoder-api-prog-guide/): see [these instructions](https://github.com/FDH2/UxPlay/wiki/NVIDIA-nvdec-and-nvenc-plugins).
NVIDIA's 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 plugin should be used with the `-vd nvdec -vs glimagesink` uxplay options.
* **GPU Support for Raspberry Pi**

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README.txt
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@@ -92,10 +92,8 @@ For NVIDIA graphics with the proprietary drivers, the `nvh264dec` 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 `libcuda.so` is installed. This plugin should be used with
options `uxplay -vd nvh264dec -vs glimagesink`. For GStreamer-1.16 or
earlier, the plugin is called `nvdec`, and must be built by the user,
using header files from NVIDIA's proprietary [Video Codec
SDK](https://docs.nvidia.com/video-technologies/video-codec-sdk/nvdec-video-decoder-api-prog-guide/):
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 plugin should be used with the