Vdpau video decode and presentation api for unix lets nvidia and amdati uvd cards play video with hardware acceleration. So it looks as steam somehow recognizes the vdpau support but is unable to use it. Remember to do this only in combination with the above scaling above for 20%. Video decode and presentation api for unix vdpau ist eine offene programmierschnittstelle. This happens when using vdpau playback profile which works otherwise well mythtvfrontend version 2. S3 graphics added vdpau to the linux drivers of their chrome 400 video cards. Vaapi provides hardware video decoding on intel graphics. 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. Interface frontends are also available for atis xvba and nvidias vdpau.
If you do not add your main user account to the mythtv group, you will get the dreaded database errors when you run mythtvsetup. Vdpau, but i saw something somewhere that looked like amd had better support with vaapi. It also should specify the name of backend driver r300 in the sample output. It is implemented by the free and opensource library libva, combined with a. By allowing vdpau the video decode and presentation api for unix to. You can look at top and see the cpu usage to find if it is using software decode. To download the sourcecode for the revised libva, mplayervaapi, and. With and without hardware acceleration whilst watching 4k video on youtube duration. Mythtv is a free open source software digital video recorder dvr project distributed under the terms of the gnu gpl. I have an old graphics card, although it was highend at the time circa late 2007early 2008, an atiamd hd 3870. There are the options of motion compensation and motion adaptive in addition to the vaapi bob option that mythtv 0. Vaapi mcdi or vaapi madi sandybridge and vaapi bob byt, scaling method. Xvba is amd technology and is third option in mplayer. Note that the internal format of the surface will be derived from the format of the hwupload.
I have a mythtv backend that i connect to with the mythtv pvr plugin. I did some research to make sure this worked under linux and mythtv. In kodi, i have vaapi hardware acceleration enabled for all available video formats. Solved hardware accelerated video vdpauvaapi using mesa.
Contribute to i rinatlibvdpau vagl development by creating an account on github. An api allowing java applications to connect to mythtv as a client. Recordings are set based on programme names, with mythtv working out the times from the electronic program guide, or from online databases. 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.
Mythtv supports multiple tv tuner cards, and multiple multiplexes on each card enabling you to record more than one channel simultaneously in each card. Vdpauvaapi backend hardware accel on intelamd in flash. On an nvidia box itll initialize vdpau, on a box with intel intgrated graphics itll initialize vaapi. 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 problem then starts when the new display profile code then goes an selects a vdpau profile, which is wrong for this system. Vlc supports zerocopy vdpau, but only copyback vaapi. Video decode and presentation api for unix vdpau is a royaltyfree application. The vdpau backend for vaapi is right now about 3,100 lines of code. This guide will show you how you can leverage your windows pc to run mythtv on a virtual machine using vitualbox.
Want to discuss or ask about what hardware is good for kodi. Mythtv is a open source software pvr project that is designed to run on linux, although other operating system packages are available. Vdpau video decode and presentation api for unixnvidiageforce 8gpu. To download the sourcecode for the revised libva, mplayer vaapi, and the vdpau va api backend, visit. 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. In this video i install and configure mythtv backend on a raspberry pi 2. Xvba vaapi support linux amd hardware decode steam. Significant changes to video decoding and playback. Nowadays vlc supports both vaapi and vdpau, so libva vdpau driver isnt needed anymore. Prebuilt downloads of mythtv for windows 32bit and experimental 64bit. You need to install the libva vaapi library and the related hardware drivers. Written by michael larabel in display drivers on 3 february 2009. Hardware accelerated video vdpauvaapi using mesa radeon driver. Set up mythtv on a virtual machine game room solutions.
Mythfrontend setup video playback screen 38 select vaapi normal profile in list. Also, if this is a secondary backend, dont install mythtvdatabase or mysqlserver. Behind the scenes, a mythtv user will be created in pam as well as mysql. The hwupload step does nothing if the output is already in vaapi format. To be used with nvidia cards 8400, 9300, gt110 or gt210. 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. 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. You want to setup mythtv so you can get dvr service to your home network, but do not want to dedicate a single computer. Vaapimcdi or vaapimadi sandybridge and vaapibob byt, scaling method.
Hevc decoding via vdpau inside mythtv mythtv official. Video acceleration api is a successor to xvmc, providing partial and full hardware offloading of video decoding. 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. 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. 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. Release notes 31 video decoding and playback mythtv official.
For example, vlc supports zerocopy vdpau, but only copyback vaapi. In kodi, i have vaapi hardware acceleration enabled for all available. The end goal is to have a nice interface for watching tv, recording shows, listening to music, etc. But when voutgl avcodechwnone is specified, it initializes vdpau or vaapi. Just configure this backend to connect to the master backend instead. 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. Hi, i just came across this thread and wanted to test out hevc decoding via vdpau inside mythtv.
Mar 19, 2017 vdpau driver with openglvaapi backend. Intel vaapi howto with leia v18 nightly based on ubuntu 18. Provided as an installer or compressed archive ready to decompress and run. Mythtv is like a free open source alternative to tivo and windows media center. Downloaded and installed from the website, following. Using the open source radeon driver which of the above video acceleration is the best to use. Support for either is equal in the driver, but there can be differences in the application. Solved hardware accelerated video vdpauvaapi using. Any discussion of audio has no relevance to this page, and belongs somewhere else. These are automated builds, built every 2 days when an update is available. Mythtv is a project aiming to create a homebrew settop box. This is most likely to impact users who previously used vdpau andor vaapi for rendering of software decoded video. It will ask you if you want to run mythfilldatabase.
Video decode and presentation api for unix vdpau is an open source library. 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. Activate the appropriate setting through the preferences menu tools preferences inputcodecs hardware accelerated decoding. Copyback is more resource intensive, as decoded frames are copied back into system ram. The video decode and presentation api for unix vdpau provides a complete solution for decoding, postprocessing, compositing, and displaying compressed or uncompressed video streams. The vdpau video buffer implementation has been changed in mythtv 0. Jmythapi uses the myth protocol to communicate with the mythtv backend and the mysql jdbc driver to query the mythtv database. A nvidia vdpau backend for intels vaapi vdpau usage by mythtv. It lets any linux, solaris, and freebsd system play files, including highly complex h. Vaapi deinterlacing mythtv official community forum. Mythtv also contains plugins for viewing other home media, similar to what xbmc media center provides. Jun 27, 2008 also, if this is a secondary backend, dont install mythtv database or mysqlserver. 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.
Watch and record analog andor digital tv, including hdtv. Gstreamer backend dont use hardware accelerate vaapi. On the latest versions of mythtv there is a button on here to download the channel icons. 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. The frontend then tried to load the vdpau libraries and failed and segfaulted. The output will show if vdpau driver has been initialized properly two leading ii letters in the sample output above.
If that is indeed the case, well, long live vaapi and vdpau. And it would appear that vaapi is functioning properly as well. Raspberry pi 2 pvrdvr install using mythtv backend youtube. Fresh player plugin gets hardware accelerated video decoding. The best deinterlacers can require lots of cpu, andor vdpau or. Only after finding that qt main mode instead of auto was incompatible with opengl playback mode i could fix the problem. Hardware video acceleration makes it possible for the video card to decodeencode video, thus offloading the cpu and saving power. Video decode and presentation api for unix wikipedia. Video acceleration api vaapi is a specification and open source library to provide both hardware accelerated video encoding and decoding, developed by intel. 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. I had the exact same problem, playback would crash immediately if opengl or vaapi profile was set, only normal would work. 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.
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