linux-kernel - RE: [RESEND PATCH v0 0/3] Performance improvement of decoder

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Message-ID:
 <SE1P216MB13032CF0902D35CFF9BCF050EDAE2@SE1P216MB1303.KORP216.PROD.OUTLOOK.COM>
Date: Thu, 3 Apr 2025 01:29:46 +0000
From: jackson.lee <jackson.lee@...psnmedia.com>
To: Nicolas Dufresne <nicolas@...fresne.ca>, "mchehab@...nel.org"
	<mchehab@...nel.org>, "hverkuil-cisco@...all.nl" <hverkuil-cisco@...all.nl>,
	"sebastian.fricke@...labora.com" <sebastian.fricke@...labora.com>,
	"bob.beckett@...labora.com" <bob.beckett@...labora.com>,
	"dafna.hirschfeld@...labora.com" <dafna.hirschfeld@...labora.com>
CC: "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, lafley.kim
	<lafley.kim@...psnmedia.com>, "b-brnich@...com" <b-brnich@...com>,
	"hverkuil@...all.nl" <hverkuil@...all.nl>, Nas Chung
	<nas.chung@...psnmedia.com>
Subject: RE: [RESEND PATCH v0 0/3] Performance improvement of decoder

Hi Nicolas

> -----Original Message-----
> From: Nicolas Dufresne <nicolas@...fresne.ca>
> Sent: Thursday, April 3, 2025 12:44 AM
> To: jackson.lee <jackson.lee@...psnmedia.com>; mchehab@...nel.org;
> hverkuil-cisco@...all.nl; sebastian.fricke@...labora.com;
> bob.beckett@...labora.com; dafna.hirschfeld@...labora.com
> Cc: linux-media@...r.kernel.org; linux-kernel@...r.kernel.org; lafley.kim
> <lafley.kim@...psnmedia.com>; b-brnich@...com; hverkuil@...all.nl; Nas
> Chung <nas.chung@...psnmedia.com>
> Subject: Re: [RESEND PATCH v0 0/3] Performance improvement of decoder
> 
> Hi,
> 
> Le mercredi 19 mars 2025 à 12:50 +0900, Jackson.lee a écrit :
> > From: Jackson Lee <jackson.lee@...psnmedia.com>
> >
> > The wave5 codec driver is a stateful encoder/decoder.
> > The following patches is for improving decoder performance.
> >
> > v4l2-compliance results:
> > ========================
> >
> > v4l2-compliance 1.28.1-5233, 64 bits, 64-bit time_t
> >
> > Buffer ioctls:
> >                 warn: v4l2-test-buffers.cpp(693): VIDIOC_CREATE_BUFS
> > not supported
> >                 warn: v4l2-test-buffers.cpp(693): VIDIOC_CREATE_BUFS
> > not supported
> >         test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
> >         test CREATE_BUFS maximum buffers: OK
> >         test VIDIOC_EXPBUF: OK
> >         test Requests: OK (Not Supported)
> >
> > Total for wave5-dec device /dev/video0: 46, Succeeded: 46, Failed: 0,
> > Warnings: 2 Total for wave5-enc device /dev/video1: 46, Succeeded: 46,
> > Failed: 0, Warnings: 0
> >
> > Fluster test results:
> > =====================
> >
> > Running test suite JCT-VC-HEVC_V1 with decoder
> > GStreamer-H.265-V4L2-Gst1.0 Using 1 parallel job(s) Ran 133/147 tests
> > successfully               in 68.517 secs
> >
> > (1 test fails because of not supporting to parse multi frames, 1 test
> > fails because of a missing frame and slight corruption,
> >  2 tests fail because of sizes which are incompatible with the IP, 11
> > tests fail because of unsupported 10 bit format)
> >
> > Running test suite JVT-AVC_V1 with decoder GStreamer-H.264-V4L2-Gst1.0
> > Using 1 parallel job(s) Ran 78/135 tests successfully               in
> > 35.015 secs
> 
> I'd be more confortable if I could get test report using 2 or 3 parallel
> instances.
> 
> Also, have you conducted manual "seek" tests, and stress tested the
> dynamic resolution changes ? We don't have automated tests for these
> anywhere yet.
> 
> Nicolas
> 

I will test them and update it.

Thanks
Jackson

> >
> > (57 fail because the hardware is unable to decode  MBAFF / FMO / Field
> > / Extended profile streams.)
> >
> >
> > Jackson Lee (3):
> >   media: chips-media: wave5: Improve performance of decoder
> >   media: chips-media: wave5: Reduce high CPU load
> >   media: chips-media: wave5: Fix Null reference while testing fluster
> >
> >  .../platform/chips-media/wave5/wave5-helper.c |  10 +-
> >  .../chips-media/wave5/wave5-vpu-dec.c         | 361
> > ++++++++++--------
> >  .../chips-media/wave5/wave5-vpu-enc.c         |   8 +-
> >  .../platform/chips-media/wave5/wave5-vpu.c    |  69 +++-
> >  .../platform/chips-media/wave5/wave5-vpuapi.c |  25 +-
> >  .../platform/chips-media/wave5/wave5-vpuapi.h |  12 +-
> >  6 files changed, 307 insertions(+), 178 deletions(-)