[davilla]

... I just found out that not all VC1 encoded files cause the choppy playback problem. It seems that the 'Terminator Sarah Connor Chronicles' are also encoded in VC1 (source for extracting the mkvs were the german BDs).

Playback of these mkvs is quite smooth, just a little hick-up once in a while.

Chris

VDA decoder only handles h264. Any VC1 content will get decoded with ffmpeg.

[ix400]

...okay.

Tomorrow I'm going to put the mediainfo files of

- Astronaut Farmer
- Terminator Salvation
- Sarah Connor chronicles

on my dropbox. All three are VC1, but only the latter one can be played smoothly on my mini 2010.

Maybe from the mediainfo files it becomes obvious what the the reason might be for this.

Cheers,

Chris

[ix400]

...okay.

Tomorrow I'm going to put the mediainfo files of

- Astronaut Farmer
- Terminator Salvation
- Sarah Connor chronicles

on my dropbox. All three are VC1, but only the latter one can be played smoothly on my mini 2010.

Maybe from the mediainfo files it becomes obvious what the the reason might be for this.

Cheers,

Chris

...sorry, but this post is bollocks.

Astronaut Farmer and Terminator Salvation are both encoded in AVC. Anyway, these files are an example for the broken HW acceleration in 10.6.4.

- 10.6.3 without acc.: choppy playback
- 10.6.3 with acc.: files are played silky smooth
- 10.6.4 without acc.: very choppy
- 10.6.4 with acc.: also choppy

Just wanted to correct what I wrongly posted.

Regards,

Chris

[ix400]

Hi davilla,

any news on the loaner mini 2010? Did you already get it?

I'm very interested in your 'hands on' experience with one of the new minis.

Cheers,

Chris

[davilla]

nope, not yet. still waiting.

[ix400]

... in the case you live in northern germany we could make an appointment for the next weekend. You could run some tests on my mini 2010.

But I guess you live somewhere else, don't you? The world's too big.

Chris

[i5Js]

@davilla I can give u a ssh access to run tests if u want...

BR

[davilla]

@davilla I can give u a ssh access to run tests if u want...

BR

ssh access will not help

[ix400]

I have submitted a bug report to apple. Actually I used both links:

http://www.apple.com/feedback/macosx.html
https://bugreport.apple.com/cgi-bin/WebO.../wa/signIn

I have sent the report using both links.

Please, can do everyone who is encountering the same problem on the mini 2010 do the same?

We need to inform Apple about the problem, and the more people chime in the more likely it gets that the problem will be fixed some day.

Cheers,

Chris

[ix400]

... after using XBMC for a couple of weeks now, the main question for me is:

WHY THE HELL DIDN'T I DO THIS EARLIER

XBMC is so damn cool, super functional. Almost no issues for me.

The only real downside is this stupid bug in 10.6.4. Today I've tested the newest 10.6.5 beta (10H548), and the bug is still not fixed.

Right now, I have the feeling that it will never be fixed... but I'm still hoping that Apple is proofing me wrong.

Got to install 10.6.3 now...

Nice weekend,

Chris

[idioteque]

Ok,

Downloaded 10.6.3. Did a clean install. SABNZB and XBMC only, no OSX or any other updates from Apple installed. A clean 10.6.3 from internet.

DVA off = no frames dropped what so ever, except 1 during start file. The only time frames are dropped is when CPU gets above 98%.

DVA on = frames dropped. 1080p or 720p. 1080 is worse. dropped frames and CPU seems no relation. What does seem a relation is fast image difference. Say light to dark or scene changes in a movie with high contrast., indoor outdoor.

I think that the log says this when frames are dropped:

01:30:28 T:2967498752 M:394383360 DEBUG: CPullupCorrection: detected pattern of length 24: 42000.00 41000.00 42000.00 42000.00 42000.00 41000.00 42000.00 42000.00 41000.00 42000.00 42000.00 42000.00 41000.00 42000.00 42000.00 41000.00 42000.00 42000.00 41000.00 42000.00 42000.00 42000.00 41000.00 42000.00
01:30:36 T:2967498752 M:394244096 WARNING: Decode - avcodec_decode_video didn't consume the full packet. size: 7623, consumed: 0
01:30:36 T:2967498752 M:394244096 WARNING: Decode - avcodec_decode_video didn't consume the full packet. size: 8066, consumed: 0


File been played:
Note! the file is 720P and [email protected]

Created on: 7 okt 2010 13:10:25 GMT+02:00
Report for file: cbgb-howtotrainyourdragon720.mkv
General / Container Stream #1
Total Video Streams for this File.................1
Total Audio Streams for this File.................1
Total Subtitle Streams for this File..............1
Video Codecs Used.................................AVC
Audio Codecs Used.................................AC3
SubTitle Codecs Used..............................UTF-8
File Format.......................................Matroska
Play Time.........................................1h 37mn
Total File Size...................................4.37 GiB
Total Stream BitRate..............................6 397 Kbps
Encoded with......................................mkvmerge v4.3.0 ('Escape from the Island') built on Sep 5 2010 10:30:51
Encoding Library..................................libebml v1.0.0 + libmatroska v1.0.0
Video Stream #1
Codec (Human Name)................................AVC
Codec (FourCC)....................................V_MPEG4/ISO/AVC
Codec [email protected]
Frame Width.......................................1 280 pixels
Frame Height......................................544 pixels
Frame Rate........................................23.976 fps
Total Frames......................................140764
Display Aspect Ratio..............................2.35:1
Scan Type.........................................Progressive
Color Space.......................................YUV
Codec Settings (Summary)..........................CABAC / 5 Ref Frames
QF (like Gordian Knot)............................0.345
Codec Settings (CABAC)............................Yes
Codec Settings (Reference Frames).................5
Video Stream Length...............................1h 37mn 51s 38ms
Video Stream BitRate..............................5 755 Kbps
Bit Depth.........................................8 bits
Video Stream Size.................................3.85 GiB (88%)
Video Encoder.....................................x264 - core 106 r1732 b20059a
Video Encoder (Settings)..........................cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x113 / me=umh / subme=8 / psy=1 / psy_rd=1.00:0.20 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-3 / threads=12 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=5755 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00
Audio Stream #1
Codec.............................................AC-3
Codec (FourCC)....................................A_AC3
Audio Stream Length...............................1h 37mn 51s 40ms
Audio Stream BitRate..............................640 Kbps
Audio Stream BitRate Mode.........................CBR
Number of Audio Channels..........................6
Audio Channel's Positions.........................Front: L C R, Side: L R, LFE
Sampling Rate.....................................48.0 KHz
Audio Stream Size.................................448 MiB (10%)
Subtitle Stream #1
Format............................................UTF-8
Codec ID..........................................S_TEXT/UTF8
Codec Info........................................UTF-8 Plain Text
Menu / Chapters Stream #1

[davilla]

if you see this "avcodec_decode_video" that's ffmepg doing the decode, not VDA decoder.

[babil]

I am also occasionally getting the following when the video playback on the TV would stumble/stutter for a fraction of a second:


19:16:12 T:55135744 M: 5767168 DEBUG: CPullupCorrection: detected pattern of length 24: 42000.00 42000.00 41000.00 42000.00 42000.00 41000.00 42000.00 42000.00 42000.00 41000.00 42000.00 42000.00 41000.00 42000.00 42000.00 42000.00 41000.00 42000.00 42000.00 41000.00 42000.00 42000.00 42000.00 41000.00


mediainfo: http://pastebin.ubuntu.com/507896/
xbmc.log: http://pastebin.ubuntu.com/507897/
dmesg: http://pastebin.ubuntu.com/507894/
kextstat: http://pastebin.ubuntu.com/507900/

[davilla]

[quote=babil]I am also occasionally getting the following when the video playback on the TV would stumble/stutter for a fraction of a second:


19:16:12 T:55135744 M: 5767168 DEBUG: CPullupCorrection: detected pattern of length 24: 42000.00 42000.00 41000.00 42000.00 42000.00 41000.00 42000.00 42000.00 42000.00 41000.00 42000.00 42000.00 41000.00 42000.00 42000.00 42000.00 41000.00 42000.00 42000.00 41000.00 42000.00 42000.00 42000.00 41000.00


symptom, not a cause. ignore it.

[idioteque]

ok thanks for the quick response.

Any thoughts on the skipping part ? or is more info required like logs and or specs ?