With multimedia redirection (MMR), the multimedia stream is decoded on the client system. The client system plays the media content so that the load on the ESXi host is reduced.

Remote desktops
  • Virtual desktops must have View Agent 6.2.x or later, or Horizon Agent 7.0 or later, installed.
  • Published desktops must have View Agent 6.2.x or later, or Horizon Agent 7.0 or later, installed on the RDS host.
For information about operating system requirements and other software requirements and configuration settings, see the topics about Windows Media Multimedia Redirection in the Configuring Remote Desktop Features in Horizon 7 document.
Horizon Client computer or client access device
Because MMR offloads media processing from the server to the client, the client has the following minimum hardware requirements.
Processor: Intel Pentium 4 or AMD Athlon dual-core
Processor speed: 1.5 GHz for common case, or 1.8 GHz for Full HD
Memory: 2 GB RAM
Video adapter: Hardware accelerated

You must install one of the following libraries to avoid video playback issues:

  • GStreamer core library and gstreamer-ffmpeg 0.10
  • GStreamer core library and fluendo 0.10

On Dell Wyse thin clients, video playback might not work with the pre-installed fluendo library. To resolve the problem, contact Dell support to obtain the latest fluendo library.

Supported media formats
Media formats that Windows Media Player supports, for example: M4V; MOV; MP4; WMP; MPEG-4 Part 2; WMV 7, 8, and 9; WMA; AVI; ACE; MP3; WAV.
Horizon 7 7.9 supports MMS and RTSP.
Note: DRM-protected content is not redirected through Windows Media MMR.
GStreamer Framework
Set up the GStreamer environment such that the framework is composed of the graphics card, hardware acceleration API, and GStreamer plug-in that allow GStreamer to function properly. Table 1 lists the different possible setup combinations. To ensure the best possible environment, set up your GStreamer environment using the information in Table 1 for the NVIDIA and Intel graphic cards.
Table 1. GStreamer Framework Setup
Graphics Card (including Driver) Hardware Accelerator API GStreamer Plug-in
NVIDIA VDPAU (libvdpau.so) vdpau
Intel VAAPI (libvaapi.so) gstreamer-vaapi
-- OpenMax gst-omx
-- DCE gstreamer-ducati
AMD OVD/UVD Unavailable

To get more detailed information, see https://gstreamer.freedesktop.org/documentation/tutorials/playback/hardware-accelerated-video-decoding.html.

MMR is not enabled by default. To enable it, you must set the configuration option view.enableMMR. For more information, see Horizon Client Configuration Settings and Command-Line Options.