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23.976FPS stutter, test files, and other FPS video stutter issues
01-09-2015, 03:11 PM (This post was last modified: 01-09-2015 03:12 PM by K_C_.)
Post: #46
RE: 23.976FPS stutter, test files, and other FPS video stutter issues
(01-09-2015 10:21 AM)Willem55 Wrote:  Movies that are shot in 24fps are converted to 23.976Hz so they run on the US NTFS displays... this is just the reversal process.. of adding or distracting a frame in the right sequence.
Read the Wikipedia link before making these bold statements...

I just checked openhouradmin's reply again and realized we both missed something:

(01-08-2015 08:26 AM)openhouradmin Wrote:  Rockchip already provide the patch for 23.976fps video micro-stuttering in 1080P24Hz for Native Player. This patch will be include into next firmware.


So the patch is for 23.976P stuffs in 1080P24Hz refresh rate (so no pull down needed) for Native Player -- no audio passthrough, so the audio will be decoded to PCM and then resync to 24P, while the video will be converted to exact 24P?
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01-09-2015, 05:18 PM
Post: #47
RE: 23.976FPS stutter, test files, and other FPS video stutter issues
Beta out with 23.976FPS patch. Remember this is NOT for SPMC playback as it needs Koying to add it to SPMC. So test using Native Player only.
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01-09-2015, 06:18 PM
Post: #48
RE: 23.976FPS stutter, test files, and other FPS video stutter issues
nice fix in beta firmware 1.0.11!!! Smile thank you !!!

we are one step close to working out of box player Smile
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01-09-2015, 06:45 PM
Post: #49
RE: 23.976FPS stutter, test files, and other FPS video stutter issues
SMPC 14 Beta 3 will be released this Weekend.
Hope we see the 23 . xxx fps Fix in it Smile
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01-13-2015, 01:40 PM (This post was last modified: 01-13-2015 01:49 PM by Venjo.)
Post: #50
RE: 23.976FPS stutter, test files, and other FPS video stutter issues
I hope so too!

When Patch is out (hopefully) do we have to set everything to Auto? Or choose 23. xxx fps in the genereal OHC settings and in SPMC?
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01-13-2015, 02:13 PM (This post was last modified: 01-13-2015 02:58 PM by Willem55.)
Post: #51
RE: 23.976FPS stutter, test files, and other FPS video stutter issues
in the OHC resolution setting you set what your display can do.... and not what you like to see.
The OHC and SPMC will then re-frame all other fps to that capability....
Auto is just to tell the OHC to negotiate a resolution with the display over HDMI at startup. only useful if you don't know what your display can do... but if you know your display can do 24fps then set OHC to 1080 24P if you mostly watch movies...

Movies are generally shot in 24fps.
Remember that 23.976Hz is just a reframe from 24fps so movies can run on old USA NTSC displays.
And also many RIPs to MKV are wrongly labeled for 23.976Hz but are actually just 24fps which will mess up the reframing in a good player...

Some focus on problems and faults others on solutions and success... no question who is the happy one.

Chameleon 16GB SD 32GB micro SD <-->HDMIv1.3<-->Onkyo TX-NR1010<-->HDMIv1.3<-->Panasonic TX-P46S10 + 6 Bowers & Wilkins speakers.
10 NTFS 2TB USB drives on 3 hubs attached to a A400, 2 Seagate blackarmour NAS 3TB, 2 Seagate Central NAS 4TB.
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01-13-2015, 02:19 PM
Post: #52
RE: 23.976FPS stutter, test files, and other FPS video stutter issues
Yeah makes sense! So ill set it so 24fps when out! I'm not happy with 60hz...

Right now i have issues with MKV's playing anyways. my First Gen WDTV Live is playing more videos then the OHC does. Strange.
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01-14-2015, 12:14 AM (This post was last modified: 01-14-2015 12:16 AM by saarg.)
Post: #53
RE: 23.976FPS stutter, test files, and other FPS video stutter issues
@Willem55
Almost every movie on blu-ray is 23.976 and not 24. A quick google search will show you this.
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01-14-2015, 12:15 AM
Post: #54
RE: 23.976FPS stutter, test files, and other FPS video stutter issues
I really hate it that the only choice I have is to either have 5.1 & the stutter (and at times white noise) or no stutter and PCM stereo, there is no setting that allows me to have both a stutter free view and 5.1 DTS/DD experience. And don't tell me to use the native player, it is like using a child's set of toy blocks with it's super large icons and clunky interface. We REALLY NEED to get 5.1 passthrough working in SPMC without causing the video stutter. I spent 3 hours today with a flow chart testing every combination of settings on the OH and SPMC 13.4 trying to find one that works... no luck. I can get the video running smooth without stuttering with passthrough off, or get the 5.1 working but with stuttering, can't get both.
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01-14-2015, 01:44 AM
Post: #55
RE: 23.976FPS stutter, test files, and other FPS video stutter issues
I'm really struggling to get stutter free playback with SPMC at all. Obviously I am talking TV caps and the AVI test files only so perhaps I need to find some actual Bluray stutter files for testing somewhere. The Jack Reacher clip was a good MKV one, the intro where the white van travels along the road. I'll search for it and upload it if anyone else want to try it out.

Native player performs nearly as bad and without audio on most clips so no good for us downmix guys.

Edit: Just found a BD file labelled BD ISO 3 stutter, I'll see what it si and upload it if it looks a decent test.

Edit:

Jack Reacher file is nearly 1Gb here's the mediainfo output :

Code:
Unique ID                                : 213013730545470277536842739249301842356 (0xA040F3C4D777AFA58F2235DE336A69B4)
Complete name                            : D:\New Test Files\Jack Reacher 23.976fps mkv test.mkv
Format                                   : Matroska
Format version                           : Version 4 / Version 2
File size                                : 915 MiB
Duration                                 : 10mn 8s
Overall bit rate                         : 12.6 Mbps
Encoded date                             : UTC 2013-06-21 20:42:24
Writing application                      : mkvmerge v6.2.0 ('Promised Land') built on Apr 28 2013 12:22:01
Writing library                          : libebml v1.3.0 + libmatroska v1.4.0

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4.1
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 5 frames
Codec ID                                 : V_MPEG4/ISO/AVC
Duration                                 : 10mn 8s
Bit rate                                 : 10.2 Mbps
Nominal bit rate                         : 9 292 Kbps
Width                                    : 1 920 pixels
Height                                   : 816 pixels
Display aspect ratio                     : 2.35:1
Frame rate mode                          : Constant
Frame rate                               : 23.976 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.272
Stream size                              : 741 MiB (81%)
Writing library                          : x264 core 130 r2273 b3065e6
Encoding settings                        : cabac=1 / ref=5 / deblock=1:-3:-3 / analyse=0x3:0x113 / me=umh / subme=8 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=2pass / mbtree=1 / bitrate=9292 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00
Language                                 : English
Default                                  : Yes
Forced                                   : No

Audio #1
ID                                       : 2
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Mode extension                           : CM (complete main)
Format settings, Endianness              : Big
Codec ID                                 : A_AC3
Duration                                 : 10mn 8s
Bit rate mode                            : Constant
Bit rate                                 : 640 Kbps
Channel(s)                               : 6 channels
Channel positions                        : Front: L C R, Side: L R, LFE
Sampling rate                            : 48.0 KHz
Bit depth                                : 16 bits
Compression mode                         : Lossy
Stream size                              : 46.4 MiB (5%)
Language                                 : English
Default                                  : Yes
Forced                                   : No

Audio #2
ID                                       : 3
Format                                   : DTS
Format/Info                              : Digital Theater Systems
Mode                                     : 16
Format settings, Endianness              : Big
Codec ID                                 : A_DTS
Duration                                 : 10mn 8s
Bit rate mode                            : Constant
Bit rate                                 : 1 509 Kbps
Channel(s)                               : 6 channels
Channel positions                        : Front: L C R, Side: L R, LFE
Sampling rate                            : 48.0 KHz
Bit depth                                : 24 bits
Compression mode                         : Lossy
Delay relative to video                  : 11ms
Stream size                              : 109 MiB (12%)
Language                                 : English
Default                                  : No
Forced                                   : No

Text #1
ID                                       : 4
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : QoQ-Team
Language                                 : Dutch
Default                                  : Yes
Forced                                   : Yes

Text #2
ID                                       : 5
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Language                                 : English
Default                                  : No
Forced                                   : No

Text #3
ID                                       : 6
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : SDH
Language                                 : English
Default                                  : No
Forced                                   : No

Menu
00:00:00.000                             : en:00:00:00.000
00:08:21.668                             : en:00:08:21.668

If anyone wants it I'll upload it. I'll test it of course to see if that white van travels stutter free along the road Big Grin
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01-14-2015, 02:01 AM (This post was last modified: 01-14-2015 02:09 AM by AmigaWolf.)
Post: #56
RE: 23.976FPS stutter, test files, and other FPS video stutter issues
(01-13-2015 02:13 PM)Willem55 Wrote:  in the OHC resolution setting you set what your display can do.... and not what you like to see.
The OHC and SPMC will then re-frame all other fps to that capability....
Auto is just to tell the OHC to negotiate a resolution with the display over HDMI at startup. only useful if you don't know what your display can do... but if you know your display can do 24fps then set OHC to 1080 24P if you mostly watch movies...

Movies are generally shot in 24fps.
Remember that 23.976Hz is just a reframe from 24fps so movies can run on old USA NTSC displays.
And also many RIPs to MKV are wrongly labeled for 23.976Hz but are actually just 24fps which will mess up the reframing in a good player...

What are you Willem55 talking about, almost all Movies and TV Shows have a framerate of 23,976 fps,
i have a lot of movies and only a few have a framerate of 24,00 fps, and i mean 2 a 3 %.

You can see it with MediaInfo, best Program there is for Movie gurus.
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01-14-2015, 03:43 AM
Post: #57
RE: 23.976FPS stutter, test files, and other FPS video stutter issues
(01-14-2015 02:01 AM)AmigaWolf Wrote:  
(01-13-2015 02:13 PM)Willem55 Wrote:  in the OHC resolution setting you set what your display can do.... and not what you like to see.
The OHC and SPMC will then re-frame all other fps to that capability....
Auto is just to tell the OHC to negotiate a resolution with the display over HDMI at startup. only useful if you don't know what your display can do... but if you know your display can do 24fps then set OHC to 1080 24P if you mostly watch movies...

Movies are generally shot in 24fps.
Remember that 23.976Hz is just a reframe from 24fps so movies can run on old USA NTSC displays.
And also many RIPs to MKV are wrongly labeled for 23.976Hz but are actually just 24fps which will mess up the reframing in a good player...

What are you Willem55 talking about, almost all Movies and TV Shows have a framerate of 23,976 fps,
i have a lot of movies and only a few have a framerate of 24,00 fps, and i mean 2 a 3 %.

You can see it with MediaInfo, best Program there is for Movie gurus.

Good question Wolf. Big Grin I want to know too. Rolleyes
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01-14-2015, 04:38 AM (This post was last modified: 01-14-2015 04:47 AM by Christmazz.)
Post: #58
RE: 23.976FPS stutter, test files, and other FPS video stutter issues
Chris, I don't know if it makes a difference but an MKV of Jack Reacher made with MakeMKV including the HD audio appear to play back just fine for me for the most part. I think to my eye, the native player plays the MKV better than SPMC 14-0 beta 2. What my eye seems to detect with SPMC is an ever so slight what I would describe as maybe a frame rate drop at random places and not always repeatable at the same place it had the glitch the first time. I think I saw somewhere that the 23-976 patch needs to be implemented in SPMC so maybe that's why.

Is the stutter you see the same thing I might see if I play a video with 25-000 fps without framerate sync on in SPMC? I watched a 720p episode of Crossing Lines S02E02 at about 57 seconds in, a train goes across the screen. On SPMC with framerate sync off, the train appears to judder from left to right. With it on, the train goes by smoothly.

Edit:
Now that I've done some file playing with the native player, I just realized that according to my TV, the native player is playing everything back at 1920x1080p-60 even though my Android setting are is set to 1920x1080p-24. Is this a bug in this beta release? Should the native player be playing videos at 60 if the content is 24? This may negate my test results for you Chris. Confused

Signal Path: Open Hour--->HDMI--->pre/pro--->HDMI--->TV
Open Hour Audio Setting: HDMI Bitstream
Open Hour Video Setting: Currently testing with resolution set to Auto and Framerate Sync enabled
Rockchip Kodi 15.2 RC2
Media played from NAS via SMB
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01-14-2015, 10:06 AM (This post was last modified: 01-14-2015 10:07 AM by Willem55.)
Post: #59
RE: 23.976FPS stutter, test files, and other FPS video stutter issues
yes indeed MediaInfo is the tool... now go and check the BDMV folder and run it on the largest M2TS say 25GB+..... most of mine are 24fps...
Now I agree most RIPs are 23.976 fps as are BD movies shot on NTSC equipment, problem starts when these are set as 24fps.

Some focus on problems and faults others on solutions and success... no question who is the happy one.

Chameleon 16GB SD 32GB micro SD <-->HDMIv1.3<-->Onkyo TX-NR1010<-->HDMIv1.3<-->Panasonic TX-P46S10 + 6 Bowers & Wilkins speakers.
10 NTFS 2TB USB drives on 3 hubs attached to a A400, 2 Seagate blackarmour NAS 3TB, 2 Seagate Central NAS 4TB.
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01-14-2015, 01:44 PM
Post: #60
RE: 23.976FPS stutter, test files, and other FPS video stutter issues
(01-14-2015 10:06 AM)Willem55 Wrote:  yes indeed MediaInfo is the tool... now go and check the BDMV folder and run it on the largest M2TS say 25GB+..... most of mine are 24fps...
Now I agree most RIPs are 23.976 fps as are BD movies shot on NTSC equipment, problem starts when these are set as 24fps.

Oh Willem55 are you a French?? If this is the case, AFAIK, most of the BDs sold in Europe (or simply "50Hz/P" BD code B countries) are in exact 24P....... so may be that's why you don't really care 23.976Hz much.

But for BD code A countries, the BDs are usually in 23.976P.
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