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[Sesam]

MC freezes/stops responding when playing some MP4 video files.

This happens on my Notebook "ASUS ZENBOOK UX31A" that has "Integrated Intel HD Graphics 4000", with Win 7 64bit.

I have tried the following:
> Updated video drivers
> Updated BIOS
> The latest version of MC (19.0.103), also tried with an older version 19.0.100
> Uninstalled/Reinstalled MC
> Tried different video settings, Red October Standard/HQ and Windows Merit based.
> Different Audio settings, Direct Sound/Wasapi.

The videofiles play without any problems on my Desktop computer.

The MediaInfo of a MP4 video file that freezes MC:

"Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom
File size                                : 1.49 GiB
Duration                                 : 51mn 23s
Overall bit rate mode                    : Variable
Overall bit rate                         : 4 164 Kbps
Writing application                      : Lavf52.32.0

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L3.1
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 3 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 51mn 23s
Duration_FirstFrame                      : -33ms
Bit rate                                 : 4 006 Kbps
Width                                    : 1 280 pixels
Height                                   : 720 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Variable
Frame rate                               : 29.970 fps
Minimum frame rate                       : 14.985 fps
Maximum frame rate                       : 29.970 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.145
Stream size                              : 1.44 GiB (96%)

Audio
ID                                       : 2
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 40
Duration                                 : 51mn 23s
Bit rate mode                            : Variable
Bit rate                                 : 152 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 44.1 KHz
Compression mode                         : Lossy
Stream size                              : 55.9 MiB (4%)"

-----------------------------

Mediainfo of a MP4 file that works without problems:

"Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom
File size                                : 2.59 GiB
Duration                                 : 53mn 5s
Overall bit rate mode                    : Variable
Overall bit rate                         : 6 976 Kbps
Writing application                      : Lavf52.93.0

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4.0
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 4 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 53mn 5s
Bit rate                                 : 6 800 Kbps
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 29.970 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.109
Stream size                              : 2.53 GiB (98%)
Writing library                          : x264 core 107
Encoding settings                        : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=umh / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=2 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=2 / weightb=1 / open_gop=0 / weightp=0 / keyint=30 / keyint_min=16 / scenecut=0 / intra_refresh=0 / rc_lookahead=30 / rc=abr / mbtree=1 / bitrate=6800 / ratetol=1.0 / qcomp=0.60 / qpmin=1 / qpmax=31 / qpstep=4 / ip_ratio=1.41 / aq=1:1.00

Audio
ID                                       : 2
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 40
Duration                                 : 53mn 4s
Bit rate mode                            : Variable
Bit rate                                 : 152 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 44.1 KHz
Compression mode                         : Lossy
Stream size                              : 57.7 MiB (2%)"


I seriously have no clue what could be causing these problems, any ideas? Note also that all MP4 files play fine on this computer on other players like VLC and MPC-HC.

[JimH]

Antivirus?

Also take a look at Hendrik's recent posts.  A day or two ago.

Edit: Here is the thread:
http://yabb.jriver.com/interact/index.php?topic=86201.msg592168#msg592168

[Sesam]

Antivirus?

Also take a look at Hendrik's recent posts.  A day or two ago.

Edit: Here is the thread:
http://yabb.jriver.com/interact/index.php?topic=86201.msg592168#msg592168

I checked all the "Intel HD Graphics Control Panel" settings that were suggested in the thread you linked to. As for Antivirus I'm using Microsofts Security Essentials, tried uninstalling it.

Also I have tried
- disabling hardware acceleration
- Video clock.
- I "forced" installing the generic HD4000 drivers from Intel.
- Uninstalled Intels HD4000 drivers completely, and tried with Microsofts provided with Windows.
- Enabled/disabled Aero
- I tried updating various other drivers, Intel WIDI, Realtek audio, WIFI,

I still suspect the problem is still Intel graphics drivers, but then again why does some MP4 play fine while others make MC crash.

I also looked at the debug log, but can't really tell from it what went wrong (attached the last part of it).

[glynor]

Are you sure the file plays on other machines properly?

[Sesam]

I just realized something! , the problem occurs only when streaming "Library Server > Client"

If I copy the file directly to my Notebook and play it in MC, the videos play without problems. Also if I navigate to the network share (on the Server) and play the video from there, no problems.

[Hendrik]

We've seen a couple more reports of MP4 files not playing properly when streaming over the network.
I'll try to reproduce the issue next week.

[Hendrik]

The good news is that i can reproduce the problem.
Lets see what i can find.

[Sesam]

The good news is that i can reproduce the problem.
Lets see what i can find.

That's good to hear, keep up the good work

[Hendrik]

In an upcoming build:
Fixed: MP4 files would hang when played on a Library Server Client without direct file access.

Sorry for the inconvenience!

[JimH]

This should be fixed in 19.0.108, available here: http://yabb.jriver.com/interact/index.php?topic=86848.msg594119#msg594119

[Sesam]

Thanks!, confirmed the new version works fine