I don't know if s905x supports 4K 60FPS vp9. Do you know? And I don't have 4K 60FPS vp9 to test in kplayer. I'll try to find it.
I found sample and tested it. On my device it 4K 60FPS vp9 plays slowed. The same problem is in kplayer (which is reference Amlogic player for this board) and in Kodi on Android.
Hi~
I just build to support vp9 for test
LibreELEC-S905.aarch64-7.0-devel-20161005190041-r23325-g3be647e.img.gz - Google DriveThis is test build for vp9 only(Not based from kszaq's latest source)
It also has problem with 4K 60FPS vp9 paly.
4K 25fps and 4K 30fps are OK.
I don't know if s905x supports 4K 60FPS vp9. Do you know? And I don't have 4K 60FPS vp9 to test in kplayer. I'll try to find it.
kszaq When I paly VP9 files, system memory goes to full after that cpu goes to 100%. Is this memory leak problem?
This is definitely memory leak. This is my mistake 
. I fixed feeing code. This is new patch - GTWc
Please check it.
Very Nice~~~
Can you share your build?
I'd like to test it..
Actually it is not build of LibreELEC or other. It is just semifinished build of linux+Kodi and some other soft. I build it for specific device and can not grantee any compatibility. I think, you'd better wait kszaq build.
Nice! Have you verified that it works? I also assume that commented-out bitstream converter sections are not needed?
It works on my s905x box.
I am not sure if bitstream converter section needed. In my tests it works with and without it equaly. Need to further explore.
This is not a solution as it breaks 4K H.264 for S905. Don't worry, I already made a patch that makes 4K H.264 working for both.For VP9 support you need two things: basics to add am-vp9 support: gKdb and this probably won't work just like that. You also need some header parsing/feeding for Amlogic (I'm not sure how it works) - you need to look it up in package/multimedia/libplayer/src/amplayer/player/player_hwdec.c from buildroot: arm-buildroot-2016-08-18-5aaca1b35f.tar.gz and add it to Kodi.
I adopted function vp9_update_frame_header from amplayer for use in Kodi. This is my first working patch: ETgW
Any comments would be helpful.
Thanks, for your reply!
This is not a solution as it breaks 4K H.264 for S905. Don't worry, I already made a patch that makes 4K H.264 working for both.
I totally agree with you. I just do not need portability in my work.
Unfortunately I did not find your patches before.
For VP9 support you need two things: basics to add am-vp9 support: gKdb and this probably won't work just like that. You also need some header parsing/feeding for Amlogic (I'm not sure how it works) - you need to look it up in package/multimedia/libplayer/src/amplayer/player/player_hwdec.c from buildroot: arm-buildroot-2016-08-18-5aaca1b35f.tar.gz and add it to Kodi.
I totally agree with you, again I added am-vp9 support and now trying to make correct header work.
Hello everybody,
I'm building firmware for Amlogic s905x media box based on Amlogic sources. And I have same problem with h264 videos with resolution >1080p.
After some research I found solution. To enable proper hardware decoding need to switch from h264_4k2k decoder to pure h264.
I commented this lines in xbmc/cores/dvdplayer/DVDCodecs/Video/AMLCodec.cpp:
[code]
/*if (am_private->video_format == VFORMAT_H264) {
CLog::Log(LOGDEBUG, "_MY CAMLCodec::OpenDecoder - video_format == VFORMAT_H264");
if (hints.width > 1920 || hints.height > 1088) {
am_private->video_format = VFORMAT_H264_4K2K;
}
}*/
[/code]
More information can be found here - Amlogic hardware support
After that change all h264 videos works well.
Still have problem with vp9 support. Do you have solution?