DirectX Video Acceleration


I have some 1080p movies with DXVA (DirectX Video Acceleration). Will they play fine on the WD TV 2nd gen or Live?


file1854 wrote:



I have some 1080p movies with DXVA (DirectX Video Acceleration). Will they play fine on the WD TV 2nd gen or Live?



Are you sure that you have videos with DXVA.

As far as I can see DXVA is something which allows video decoding to be hardware accelerated as long as the video is compliant. Obviously the WDTV is designed to play HD material and does not need this form of hardware acceleration.

I’m guessing these movies are DXVA “compatible” then. So they should play fine right?

That depends on the container and codecs.

If you download MediaInfo and post the output for one of your files here, we can more accurately determine whether the files will (or should) play fine.  

Welcome to the forums!  :)

Alright, thank you

And for the DTS 5.1, I think I will need an audio receiver to decode it.

Container:                MKV

Format:                     x264

Size:                          8.57 GiB

Length:                    1h 47mn

Resolution:             1920*800 (1080p)

Video Bitrate:          9635 Kbps

Source Media:        Blu-Ray

Audio Format:         DTS

Audio Channels:    5.1

Audio Bitrate:          1536


ID                                                      : 1

Format                                             : AVC

Format/Info                                     : Advanced Video Codec

Format profile                                : High@L4.1

Format settings, CABAC             : Yes

Format settings, ReFrames       : 5 frames

Muxing mode                                 : Container profile=Unknown@4.1

Codec ID                                         : V_MPEG4/ISO/AVC

Duration                                          : 1h 47mn

Bit rate                                             : 9 634 Kbps

Nominal bit rate                             : 9 859 Kbps

Width                                                : 1 920 pixels

Height                                              : 800 pixels

Display aspect ratio                      : 2.400

Frame rate                                      : 23.976 fps

Resolution                                      : 24 bits

Colorimetry                                     : 4:2:0

Scan type                                        : Progressive

Bits/(Pixel*Frame)                         : 0.262

Stream size                                    : 7.25 GiB (85%)

Title                                                  : x264 - 2 passes @ 60% of the original bitrate

Writing library                                 : x264 core 79 r1352 d487de4

Encoding settings                : cabac=1 / ref=5 / deblock=1:-2:-2 / analyse=0x3:0x113 / me=umh / subme=10 / psy=1 / psy_rd=1.0:0.0 / mixed_ref=1 / me_range=64 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / chroma_qp_offset=-2 / threads=12 / nr=0 / decimate=1 / mbaff=0 / constrained_intra=0 / bframes=5 / b_pyramid=0 / b_adapt=2 / b_bias=0 / direct=2 / wpredb=1 / wpredp=2 / keyint=250 / keyint_min=25 / scenecut=40 / rc_lookahead=0 / rc=2pass / mbtree=0 / bitrate=9859 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=38000 / vbv_bufsize=30000 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:0.80

Language                         : English


ID                                    : 2

Format                           : DTS

Format/Info                   : Digital Theater Systems

Codec ID                       : A_DTS

Duration                        : 1h 47mn

Bit rate mode               : Constant

Bit rate                           : 1 510 Kbps

Channel(s)                   : 6 channels

Channel positions      : Front: L C R, Surround: L R, LFE

Sampling rate              : 48.0 KHz

Resolution                    : 24 bits

Stream size                  : 1.14 GiB (13%)

Title                                : DTS - 1536 kbit/sec

Language                     : English


ID                                    : 3

Format                           : UTF-8

Codec ID                       : S_TEXT/UTF8

Codec ID/Info               : UTF-8 Plain Text

Language                     : English

Looks like a fairly standard MKV with supported codecs

Should play back fine when connected direct (USB on Gen2 & Live) or via network (wired on Live).

There’s always an element of doubt with wi-fi but that’s only a factor if you choose the Live (Gen2 has no networking ability when using official firmware). Having said that, the bit-rate is less than 10mbps so should (in theory) play fine even on a wireless ‘G’ network.

Regarding DTS, yes, you’ll need a receiver to decode DTS and get the full 5.1 via HDMI or Optical cable.  

However, if you select Audio Output: Stereo in Settings > Audio/Video, the Live will downmix it to stereo for you and it’ll play back fine on your TV.  

If in future you purchase a suitable audio receiver, you can enable Digital Audio output and get the full 5.1 experience.  :)

Awesome, thanks alot for your answers

DXVA is a hardware term, has NOTHING to do with the files you have. It is some software inside your PC and video card and it is only for Windows operating systems (DirectX is part of Windows). Simple google will show this.

WDTV Live is not a Windows machine, so this term would have nothing to do with it.