I have a mythtv backend that i connect to with the mythtv pvr plugin. Activate the appropriate setting through the preferences menu tools preferences inputcodecs hardware accelerated decoding. Video decode and presentation api for unix vdpau is a royaltyfree application. Hardware accelerated video vdpauvaapi using mesa radeon driver. Hi, i just came across this thread and wanted to test out hevc decoding via vdpau inside mythtv. By allowing vdpau the video decode and presentation api for unix to. Contribute to i rinatlibvdpau vagl development by creating an account on github. The video decode and presentation api for unix vdpau provides a complete solution for decoding, postprocessing, compositing, and displaying compressed or uncompressed video streams. If you do not add your main user account to the mythtv group, you will get the dreaded database errors when you run mythtv setup. Vdpau, but i saw something somewhere that looked like amd had better support with vaapi. But libva vdpau driver is a wrapper when vlc used to be vaapi only, libva vdpau driver allowed you to get hardware acceleration in it with the nvidia proprietary driver. Hevc decoding via vdpau inside mythtv mythtv official. But when voutgl avcodechwnone is specified, it initializes vdpau or vaapi. I did some research to make sure this worked under linux and mythtv.
This is most likely to impact users who previously used vdpau andor vaapi for rendering of software decoded video. The encoders can only take input as vaapi surfaces, so it will typically need to be preceeded by a hwupload instance to convert a normal frame into a vaapi format frame. Also, if this is a secondary backend, dont install mythtvdatabase or mysqlserver. This guide will show you how you can leverage your windows pc to run mythtv on a virtual machine using vitualbox. If that is signaling he is already working with amd on this support, it is a very unfortunate sign that xvba will not be as opensource friendly as anticipated and not even as open as nvidias vdpau api. This happens when using vdpau playback profile which works otherwise well mythtvfrontend version 2. Mythtv supports multiple tv tuner cards, and multiple multiplexes on each card enabling you to record more than one channel simultaneously in each card. Jun 27, 2008 also, if this is a secondary backend, dont install mythtv database or mysqlserver. These video streams may be combined composited with bitmap content, to implement osds and other application user interfaces.
It looks like its failed to create the vaapi context happens occasionaly, and we noticed this and coped. The end goal is to have a nice interface for watching tv, recording shows, listening to music, etc. Video acceleration api is a successor to xvmc, providing partial and full hardware offloading of video decoding. With mythtv you can watch live tv, schedule recordings, view episode guide information, and many other features you expect from a dvr type appliance device. Provided as an installer or compressed archive ready to decompress and run. Vdpau video decode and presentation api for unix lets nvidia and amdati uvd cards play video with hardware acceleration. If you do not add your main user account to the mythtv group, you will get the dreaded database errors when you run mythtvsetup. Watch and record analog andor digital tv, including hdtv. Video decode and presentation api for unix vdpau ist eine offene programmierschnittstelle. An api allowing java applications to connect to mythtv as a client. The output will show if vdpau driver has been initialized properly two leading ii letters in the sample output above. Just configure this backend to connect to the master backend instead. I can confirm that vdpau is actually working on my system, as im also using a custom xbmc build that exclusively leverages vdpau for hardware accelerated x264h264 decoding which is working fine. So it looks as steam somehow recognizes the vdpau support but is unable to use it.
Want to discuss or ask about what hardware is good for kodi. Behind the scenes, a mythtv user will be created in pam as well as mysql. Vdpauvaapi backend hardware accel on intelamd in flash. I have an old graphics card, although it was highend at the time circa late 2007early 2008, an atiamd hd 3870. Vlc supports zerocopy vdpau, but only copyback vaapi. Written by michael larabel in display drivers on 3 february 2009. Video decode and presentation api for unix wikipedia. If that is indeed the case, well, long live vaapi and vdpau. Solved hardware accelerated video vdpauvaapi using mesa.
Make sure you are using opengl or auto as painter mythfrontend setup appearance, make sure painter is set to auto or opengl not qt select vaapi playback profile from mythfrontend. Xvba vaapi support linux amd hardware decode steam. With and without hardware acceleration whilst watching 4k video on youtube duration. In this video i install and configure mythtv backend on a raspberry pi 2.
For example, vlc supports zerocopy vdpau, but only copyback vaapi. Vdpau video decode and presentation api for unixnvidiageforce 8gpu. Significant changes to video decoding and playback. Xvba is amd technology and is third option in mplayer. In kodi, i have vaapi hardware acceleration enabled for all available video formats. And it would appear that vaapi is functioning properly as well. Mythfrontend setup video playback screen 38 select vaapi normal profile in list. While vlc media player has supported hardwareassisted video decoding for a few years, fully gpuaccelerated decoding, postprocessing and rendering has proven a challenge for the traditional software architecture. The hwupload step does nothing if the output is already in vaapi format.
Gstreamer backend dont use hardware accelerate vaapi. Vaapi deinterlacing mythtv official community forum. Video acceleration api vaapi is a royaltyfree api that allows applications such as vlc media player or gstreamer to use hardware video acceleration capabilities, usually provided by. The problem then starts when the new display profile code then goes an selects a vdpau profile, which is wrong for this system. To download the sourcecode for the revised libva, mplayervaapi, and. To be used with nvidia cards 8400, 9300, gt110 or gt210. When i decided to base my new mythtv system around intels new integrated cpugpu architecture, i did some research to make sure this worked under linux and mythtv. Mar 28, 2015 in this video i install and configure mythtv backend on a raspberry pi 2. Mythtv is like a free open source alternative to tivo and windows media center. Raspberry pi 2 pvrdvr install using mythtv backend youtube. Support for either is equal in the driver, but there can be differences in the application. Video decode and presentation api for unix vdpau is an open source library.
Vaapi mcdi or vaapi madi sandybridge and vaapi bob byt, scaling method. On an nvidia box itll initialize vdpau, on a box with intel intgrated graphics itll initialize vaapi. Mythtv is a open source software pvr project that is designed to run on linux, although other operating system packages are available. You need to install the libva vaapi library and the related hardware drivers. Vaapi provides hardware video decoding on intel graphics. Mar 19, 2017 vdpau driver with openglvaapi backend. A nvidia vdpau backend for intels vaapi vdpau usage by mythtv. For the addition to the group to take effect, a fresh login needs to occur so log out of your current session and then log back in right now. Fresh player plugin gets hardware accelerated video decoding. On the latest versions of mythtv there is a button on here to download the channel icons.
Set up mythtv on a virtual machine game room solutions. Remember to do this only in combination with the above scaling above for 20%. In kodi, i have vaapi hardware acceleration enabled for all available. S3 graphics added vdpau to the linux drivers of their chrome 400 video cards. It also should specify the name of backend driver r300 in the sample output. Downloaded and installed from the website, following. Video acceleration api vaapi is a royaltyfree api that allows applications such as vlc media player or gstreamer to use hardware video acceleration capabilities, usually provided by the graphics processing unit gpu. Copyback is more resource intensive, as decoded frames are copied back into system ram. Nowadays vlc supports both vaapi and vdpau, so libva vdpau driver isnt needed anymore. Jmythapi uses the myth protocol to communicate with the mythtv backend and the mysql jdbc driver to query the mythtv database.
If you compare that to cpu usage of mythtv using vdpau hardware decode h264 video that plays in mythtv using vdpau without failing over to software, you can verify if mplayer is really using hardware decode. Mythtv also contains plugins for viewing other home media, similar to what xbmc media center provides. Hardware video acceleration makes it possible for the video card to decodeencode video, thus offloading the cpu and saving power. You can look at top and see the cpu usage to find if it is using software decode. It will ask you if you want to run mythfilldatabase. The frontend then tried to load the vdpau libraries and failed and segfaulted. The best deinterlacers can require lots of cpu, andor vdpau or. It lets any linux, solaris, and freebsd system play files, including highly complex h. Mythtv is a free open source software digital video recorder dvr project distributed under the terms of the gnu gpl. It has been under heavy development since 2002, and now contains most features one would expect from a good dvr and many new ones that you soon wont be able to live without. These are automated builds, built every 2 days when an update is available. It is implemented by the free and opensource library libva, combined with a.
Solved hardware accelerated video vdpauvaapi using. The vdpau video buffer implementation has been changed in mythtv 0. You want to setup mythtv so you can get dvr service to your home network, but do not want to dedicate a single computer. There are the options of motion compensation and motion adaptive in addition to the vaapi bob option that mythtv 0. Using the open source radeon driver which of the above video acceleration is the best to use. To download the sourcecode for the revised libva, mplayer vaapi, and the vdpau va api backend, visit. Note that the internal format of the surface will be derived from the format of the hwupload.
Interface frontends are also available for atis xvba and nvidias vdpau. Fresh player plugin was updated recently with support for hardware accelerated video decoding via vaapi and vdpau, along with video capture support alsa, jack, pulseaudio and other improvements. Intel vaapi howto with leia v18 nightly based on ubuntu 18. Mythtv is a project aiming to create a homebrew settop box. Recordings are set based on programme names, with mythtv working out the times from the electronic program guide, or from online databases.
Vaapimcdi or vaapimadi sandybridge and vaapibob byt, scaling method. Only after finding that qt main mode instead of auto was incompatible with opengl playback mode i could fix the problem. I had the exact same problem, playback would crash immediately if opengl or vaapi profile was set, only normal would work. Prebuilt downloads of mythtv for windows 32bit and experimental 64bit. The vdpau backend for vaapi is right now about 3,100 lines of code.
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