[Nouveau] VDPAU DEINTERLACE
Ilia Mirkin
imirkin at alum.mit.edu
Mon May 9 18:45:34 UTC 2016
You can try playing with pstate in /sys/kernel/debug/dri/0/pstate
On Mon, May 9, 2016 at 2:42 PM, poma <pomidorabelisima at gmail.com> wrote:
> On 09.05.2016 19:37, Ilia Mirkin wrote:
>> Mesa only supports the non-spatial temporal deinterlace (deint=3). I'm
>> guessing that due to some unfortunate issues, you're no longer getting
>> hw accelerated video decoding. Check in vdpauinfo to make sure that
>> it's indeed showing the relevant codec as supported. If not, you can
>> turn that back on by updating to mesa 11.2.2, or downgrading your
>> kernel to 4.2 or earlier. (The issue only affects G98 and MCP77/MCP79
>> IGPs.)
>>
>
> With the -Mplayer- vdpau decoding works, at least with the -progressive- scan type,
> -interlaced- scan type (DVBT-576i/1080i) is questionable,
> especially when runs within vlc or xine, even without vdpau deinterlacer,
> Xorg crash dump, satisfaction guarantee.
>
>
> $ vdpauinfo
> display: :0.0 screen: 0
> API version: 1
> Information string: G3DVL VDPAU Driver Shared Library version 1.0
> ...
>
> Decoder capabilities:
>
> name level macbs width height
> ----------------------------------------------------
> MPEG1 0 16384 2048 2048
> MPEG2_SIMPLE 3 16384 2048 2048
> MPEG2_MAIN 3 16384 2048 2048
> H264_BASELINE 41 16384 2048 2048
> H264_MAIN 41 16384 2048 2048
> H264_HIGH 41 16384 2048 2048
> VC1_SIMPLE 1 16384 2048 2048
> VC1_MAIN 2 16384 2048 2048
> VC1_ADVANCED 4 16384 2048 2048
> MPEG4_PART2_SP --- not supported ---
> ...
>
> Video mixer:
>
> feature name sup
> ------------------------------------
> DEINTERLACE_TEMPORAL y
> DEINTERLACE_TEMPORAL_SPATIAL -
> INVERSE_TELECINE -
> NOISE_REDUCTION y
> SHARPNESS y
> LUMA_KEY -
> ...
>
>> If you are, in fact, getting hw video decoding acceleration, then it
>> could be that your GPU is clocked too low. You could attempt
>> reclocking to a higher pstate and seeing what happens.
>>
>
> # nvclock --speeds
> ...
> Memory clock: 399.600 MHz
> GPU clock: 612.000 MHz
>
> # nvclock --info
> ...
> Performance level 0: gpu 567MHz/shader 1400MHz/memory 400MHz/100%
>
> $ dmesg -t | grep pstate
> ...
> Kernel command line: ... nouveau.pstate=1 ...
> nouveau: unknown parameter 'pstate' ignored
> -4.5.2-
>
> Is there a room for reinforcement, or
> NVIDIA G98 DEINTERLACER: ability without capability, i.e. underpowered GPU?
>
>>
>> On Thu, May 5, 2016 at 1:12 AM, poma <pomidorabelisima at gmail.com> wrote:
>>>
>>> NVIDIA G98
>>> mesa-dri-drivers-11.2.1-2.20160501.fc22.x86_64
>>> (incl. mesa commit 38fcf7c)
>>>
>>>
>>> vdpauinfo | grep -i deint
>>> DEINTERLACE_TEMPORAL y
>>> DEINTERLACE_TEMPORAL_SPATIAL -
>>>
>>>
>>> https://cgit.freedesktop.org/vdpau/libvdpau/tree/include/vdpau/vdpau.h#n3420
>>> #define VDP_VIDEO_MIXER_FEATURE_DEINTERLACE_TEMPORAL ((VdpVideoMixerFeature)0)
>>> /**
>>> * \hideinitializer
>>> * \brief A VdpVideoMixerFeature.
>>> *
>>> * When requested and enabled, this enables a more advanced
>>> * version of temporal de-interlacing, that additionally uses
>>> * edge-guided spatial interpolation.
>>> *
>>> * When multiple de-interlacing options are requested and
>>> * enabled, the back-end implementation chooses the best
>>> * algorithm to apply.
>>> */
>>> #define VDP_VIDEO_MIXER_FEATURE_DEINTERLACE_TEMPORAL_SPATIAL ((VdpVideoMixerFeature)1)
>>> /**
>>> * \hideinitializer
>>> * \brief A VdpVideoMixerFeature.
>>> *
>>> * When requested and enabled, cadence detection will be enabled
>>> * on interlaced content and the video mixer will try to extract
>>> * progressive frames from pull-down material.
>>> */
>>>
>>>
>>> https://cgit.freedesktop.org/vdpau/libvdpau/tree/include/vdpau/vdpau.h#n606
>>> * \subsection deint_adv Advanced De-interlacing
>>> *
>>> * Operation of both temporal and temporal-spatial de-interlacing is
>>> * identical; the only difference is the internal processing the algorithm
>>> * performs in generating the output frame.
>>> *
>>>
>>>
>>> man 1 mplayer
>>> ...
>>> vdpau (X11 only)
>>> ...
>>> deint=<-4-4>
>>> ...
>>> Select deinterlacing mode (default: -3). Positive values
>>> choose mode and enable deinterlacing. Corresponding nega‐
>>> tive values select the same deinterlacing mode, but do
>>> not enable deinterlacing on startup (useful in configura‐
>>> tion files to specify what mode will be enabled by the
>>> "D" key). All modes respect --field-dominance.
>>>
>>> 0 same as -3
>>>
>>> 1 Show only first field, similar to --vf=field.
>>>
>>> 2 Bob deinterlacing, similar to --vf=tfields=1.
>>>
>>> 3 motion adaptive temporal deinterlacing. May lead
>>> to A/V desync with slow video hardware and/or high
>>> resolution.
>>>
>>> 4 motion adaptive temporal deinterlacing with
>>> edge-guided spatial interpolation. Needs fast
>>> video hardware.
>>>
>>>
>>> Reading all this, am I correctly concluded,
>>> what is supported within NVIDIA G98 HW is DEINTERLACE_TEMPORAL,
>>> which should be engaged with Mplayer's 'vdpau:deint=4' option?
>>>
>>> Then again, what DEINTERLACE_TEMPORAL_SPATIAL represents?
>>> As reading the 'vdpauinfo' output it should not be supported.
>>> Is it associated with Mplayer's 'vdpau:deint=3' option,
>>> which in turn works, so to speak?
>>>
>>> mplayer -vo vdpau:deint=[34] -vc ffmpeg12vdpau dvb://2@DVBT
>>>
>>> Although they achieve solid deinterlacing result,
>>> vdpau:deint=3 and vdpau:deint=4 tend to produce:
>>>
>>> ************************************************
>>> **** Your system is too SLOW to play this! ****
>>> ************************************************
>>>
>>> Rest of the deinterlacing modes - 1 and 2, are not so great.
>>>
>>>
>>> _______________________________________________
>>> Nouveau mailing list
>>> Nouveau at lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/nouveau
>
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