https://bugs.freedesktop.org/show_bug.cgi?id=68805
Priority: medium Bug ID: 68805 Assignee: dri-devel@lists.freedesktop.org Summary: 48 fps and 50 fps video decoding is stutter on UVD Severity: normal Classification: Unclassified OS: Linux (All) Reporter: russianneuromancer@ya.ru Hardware: x86-64 (AMD64) Status: NEW Version: git Component: Drivers/Gallium/r600 Product: Mesa
Created attachment 84985 --> https://bugs.freedesktop.org/attachment.cgi?id=84985&action=edit dmesg
48 fps and 50 fps video decoding is stutter on UVD, even 720p. UVD on Radeon 6310 with fglrx driver as able to decode up to 1080p 50 fps video with zero dropper frames so hardware is capable of decoding such framerate. There is 48 fps sample http://dl.dropbox.com/u/11564551/Inception_trailer_48fps.mkv but I want to notice - many camcorders record 1080p50 or even 1080p60 video this days, so this issue not just about trailers that upscaled from 24 to 48 fps.
Radeon HD 6310 Linux 3.11 with drm-next from this folder: http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-next/current/ (build 3.11.0-996.201308300442). radeon.dpm is enabled. libdrm 2.4.46+git1308291007.f17d41 xserver-xorg-video-radeon 7.2.0+git1308270847.8927d3 Mesa 9.3~git1308301002.74be77 libvdpau1 0.7-1 mplayer2 2.0-554-gf63dbad Ubuntu 13.04 x86_64
Driver, Mesa and firmwares installed from this PPA: https://launchpad.net/~oibaf/+archive/graphics-drivers
dmesg output attached. vdpauinfo output attached.
https://bugs.freedesktop.org/show_bug.cgi?id=68805
--- Comment #1 from russianneuromancer@ya.ru --- Created attachment 84989 --> https://bugs.freedesktop.org/attachment.cgi?id=84989&action=edit vdpauinfo
https://bugs.freedesktop.org/show_bug.cgi?id=68805
--- Comment #2 from kwahoo2@wp.pl --- I have very similar config to your (3.11 + DPM + oibaf PPA) except HD 6670 instead 6310 - but vdpainfo output looks exactly the same. However, I cannot confirm your issue. I am curious what is your /sys/kernel/debug/dri/0/radeon_pm_info?
Mine: sudo cat /sys/kernel/debug/dri/0/radeon_pm_info uvd vclk: 70000 dclk: 56000 power level 0 sclk: 80000 mclk: 100000 vddc: 1100 vddci: 0
https://bugs.freedesktop.org/show_bug.cgi?id=68805
--- Comment #3 from russianneuromancer@ya.ru --- While playback this sample video: uvd vclk: 53334 dclk: 40000 power level 0 sclk: 49231 vddc: 975
Quote from dmesg: [147358.038752] switching from power state: [147358.038772] ui class: performance [147358.038778] internal class: none [147358.038782] caps: [147358.038787] uvd vclk: 0 dclk: 0 [147358.038793] power level 0 sclk: 27827 vddc: 900 [147358.038796] power level 1 sclk: 49231 vddc: 975 [147358.038799] status: c [147358.038803] switching to power state: [147358.038805] ui class: none [147358.038807] internal class: uvd [147358.038811] caps: [147358.038814] uvd vclk: 53334 dclk: 40000 [147358.038817] power level 0 sclk: 49231 vddc: 975 [147358.038819] status: r
https://bugs.freedesktop.org/show_bug.cgi?id=68805
--- Comment #4 from Grigori Goronzy greg@chown.ath.cx --- There are some known performance problems with UVD. I don't believe we know why it is slower than fglrx yet. Maybe something subtle related to UVD setup.
Tiling is also disabled for UVD surfaces at the moment. This slightly reduces throughput, especially on GPUs with little memory bandwidth (such as APUs).
https://bugs.freedesktop.org/show_bug.cgi?id=68805
russianneuromancer@ya.ru changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED
--- Comment #5 from russianneuromancer@ya.ru --- Certainly fixed now.
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