A/V Tests

For all the Audio/Video Tests we used the following setup:

• TV: Panasonic 55CMX710E (4K +3D capable) with the latest firmware installed
• A/V Receiver: Yamaha RX-V775 (7.2 capable) with the latest firmware installed
• Wifi Router: TP-Link VR200 (802ac,b,g,n) with the latest firmware installed

For our compatibility tests, we used audio/video files available at the KODI Wiki. We connected the Rikomagic MK22 to the Yamaha RX-775 A/V receiver through an HDMI cable.

Below are our test results with bpth the included default media player (app called Movie Player) and the KODI version:

The Rikomagic MK22 performed well in passing HD Audio through HDMI using the build-in Movie Player. While the player doesn't output 7.1 with DTS format, it does 7.1 with Dolby Digital movies. Using the KODI player will get you PCM audio with Dolby Digital formats, and 5.1 sound with DTS files.

Video Bitrate Tests

For this test we used test file from this page, which allowed us to test the playability of a up to 400Mbps files, using the available input methods (USB storage, LAN and WiFi):

The player supports playback of up to 180Mbps media files using an external USB HDD. The player's performance is lower through the 1Gbit LAN and the included Wifi module seems to have a poor performance, making us believe that out test sample could be defective.

4K Tests x264 (AVC)

4K H.264 videos are playing reasonably well, although we encountered some small playback issues with specific media files.

4K Tests x265 (HEVC - 8 Bit)

The player had no issues reproducing the more demadning H265 4K 8bit videos.

4K Tests x265 (HEVC - 10 Bit)

The 10bit files are even more demanding but the Rikomagic MK22 managed to pass all the tests using the built-in player. However, the KODI 16.1 player had some issues, which could be ironed out with the upcoming KODI 17 version.

4K VP9 Tests

We didn't have any problems with VP9 encoded files with either the built-in movie player or the KODI 16.1.

Other formats

Moving on to more media format tests, we got pefrect playback for older formats (Xvid, DivX, DivXHD). We also tested the player with less popular codecs such as the VC1 and Hi10P as well. In adddition, the ISO format isn't playable using the internal video player, while KODI 16.1 also seems to have some problems with the DVD-ISO format (probably due to the file's audio track). Finally if you want to het non-english subtitles from the internal player, make sure they are encoded to the UTF-8 format to get they perfectly displayed.

What about 3D support? Using the internal video player you must manually set 3D (either L/R or B/T) in order to make things work. On the other hand, the KODI 16.1 doesn't work so well and we couldn't get 3D format recognized automatically.

Benchmarks

Read/Write Performance Storage Tests

We measured the following speeds during a drag and drop transfer test of a 716Mb file:

Obviously, transfering a file to/from a USB storage medium is the fastest way to get it done, and once again, the player's WiFi performance proved to be very poor.