Unable to play back M4V

[cheerful]

Windows 7 64 bit, 4GB RAM, HD video card.

No problem plays back AVCHD mts with 0% CPU utilization

This clip is encoded by Adobe Media Encoder, 1920x1080i, 12 Mbps.

Plays back in slow motion (audio lags and pauses from time to time). Tried both MPC-HC and WMP. It's roughly 50% slower. The CPU utilization is about 34%. MPC-HC shows it uses "MainConcept (Adobe2) MPEG Splitter". If I block this filter, MPC can't render the file.

How can I fix it?

Thanks!

Media Info:

Format : AVC
Format/Info : Advanced Video Codec
File size : 375 MiB

Video
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Bit rate mode : Variable
Maximum bit rate : 35.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 fps
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

[lowellriggsiam]

I am running a bit slower of a system and have been able to view m4v files rendered from adobe after effects using divx player.

[cheerful]

I don't think it's a horsepower issue. More of a problem of codec/splitter. What do I need to install?

Thanks!

[lowellriggsiam]

I have nothing, but the default codecs + divx installed.

[cheerful]

Installed DivX. Same slow motion playback and worse quality

[cheerful]

Here is the error from MPC-HC when I disabled the MainConcept AVC codec. I can't seem to force it to CoreAVC.

hd.m4v::Output
"MainConcept (Adobe2) MPEG Splitter"::H264

Media Type 0:
--------------------------
Video

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Video {73646976-0000-0010-8000-00AA00389B71}
subtype: Unknown GUID Name {F038FB38-36B4-4CE0-AD08-8EA7CB60110F}
formattype: Unknown GUID Name {F038FB38-36B4-4CE0-AD08-8EA7CB60110F}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 1
cbFormat: 150

pbFormat:
0000: 00 00 00 01 67 64 00 29 ac 2c a5 01 e0 11 1f 78 ....gd.)?,?.?..x
0010: 0a 90 10 10 14 00 00 0f a4 00 03 a9 83 a2 80 00 .?......?..???€.
0020: 85 83 00 01 c9 c2 fc 63 83 b4 30 62 2c 00 00 00 ??..???c??0b,...
0030: 01 68 e8 81 13 52 50 00 00 00 01 06 00 09 80 00 .h??.RP.......€.
0040: 87 9a 80 00 00 03 00 40 80 00 00 00 01 06 01 0c ??€....@€.......
0050: 00 00 03 00 00 21 b2 00 08 00 00 03 00 08 80 00 .....!?.......€.
0060: 00 00 01 65 88 80 50 00 b6 ff 8d 2d ff f1 6b 59 ...e?€P.??-?kY
0070: ab 4e 53 d0 30 15 f6 7c ae 8b 84 57 c4 03 eb 71 ?NS?0.?|???W?.?q
0080: ec 7f 65 8c 6e 81 85 49 d4 a0 76 79 9b 5b b8 3a ?e?n??I??vy?[?:
0090: 49 d3 0b 7f b1 e9 I?.??


Media Type 1:
--------------------------
Unknown

AM_MEDIA_TYPE:
majortype: MEDIATYPE_MPEG2_PES {E06D8020-DB46-11CF-B4D1-00805F6CBBEA}
subtype: Unknown GUID Name {F038FB38-36B4-4CE0-AD08-8EA7CB60110F}
formattype: Unknown GUID Name {F038FB38-36B4-4CE0-AD08-8EA7CB60110F}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 1
cbFormat: 150

pbFormat:
0000: 00 00 00 01 67 64 00 29 ac 2c a5 01 e0 11 1f 78 ....gd.)?,?.?..x
0010: 0a 90 10 10 14 00 00 0f a4 00 03 a9 83 a2 80 00 .?......?..???€.
0020: 85 83 00 01 c9 c2 fc 63 83 b4 30 62 2c 00 00 00 ??..???c??0b,...
0030: 01 68 e8 81 13 52 50 00 00 00 01 06 00 09 80 00 .h??.RP.......€.
0040: 87 9a 80 00 00 03 00 40 80 00 00 00 01 06 01 0c ??€....@€.......
0050: 00 00 03 00 00 21 b2 00 08 00 00 03 00 08 80 00 .....!?.......€.
0060: 00 00 01 65 88 80 50 00 b6 ff 8d 2d ff f1 6b 59 ...e?€P.??-?kY
0070: ab 4e 53 d0 30 15 f6 7c ae 8b 84 57 c4 03 eb 71 ?NS?0.?|???W?.?q
0080: ec 7f 65 8c 6e 81 85 49 d4 a0 76 79 9b 5b b8 3a ?e?n??I??vy?[?:
0090: 49 d3 0b 7f b1 e9 I?.??