Dropped frames with low CPU usage

by ricochet90 Tue Apr 12, 2016 4:44 am

When I try to run the 1080p HEVC tomsk video part 2 found here (http://www.elecard.com/en/download/videos.html) I get dropped frames using MPC HC using software acceleration as my GPU doesn't support HW acceleration of HEVC.

It happens with some other HEVC videos too,but that's the one I tried the most.

It's weird because I've been monitoring my CPU usage and it never goes over 50% while playing HEVC video (even 10 bit x264 video goes above 70% and runs perfectly fine),same thing happens with standalone MPC without k lite.

I'm no expert,but dropped frames are not supposed to occur only when the CPU can't generate the frames? and the CPU shouldn't be at 100% all the time? It seems that my CPU has some power to spare but the frames keep dropping.

Can anyone tell me why this happens? and if I can do something to fix it?

These are my specs.
Windows 10 x64
AMD APU A8 4555m with HD 7600g Radeon GPU
8gb RAM DDR3 1333mhz
Using the latest 12.0.9 version of the codec pack

Here is my log

Codec Tweak Tool | Log file | Generated at 2016-04-11 22:34:25

##### System Information #####

OS: Windows 10 Home Single Language (10.00.10586) (x64)
DirectX: 9.0c + 10 + 10.1 + 11 + 12
CPU name: AMD A8-4555M APU with Radeon(tm) HD Graphics
CPU speed: 1597 MHz
Memory: 2048 MB
Screen size: 1366x768 (32bits) (60Hz)
Video card: AMD Radeon HD 7600G
VendorID: 1002, DeviceID: 9908
Video mem: 768 MB
Video driver: aticfx64.dll (Catalyst 15.7.1)
Audio device: AMD High Definition Audio Device
VendorID: 1002, DeviceID: aa01, SubSys: 00aa0100
Audio driver: AtihdWT6.sys (Version 10.0.0.1) (6-9-2015)

##### K-Lite Codec Pack #####

KLCP version: 12.0.9 (base 12.0.5)
KLCP type: standard

Speaker conf: as is

MPC renderer: EVR CP
MPC subs: ISR
MPC decoder: h264=1|4 vc1=1|4 mpeg2=1|4

##### Decoder Settings #####

LAV Video:
H264=1|0 VC1=1|0 MPEG2=1|0 MPEG4=1|0 FLV1=1 WMV3=0

LAV Audio:
MP3=1 AAC=1 Vorbis=1 AC3=1 DTS=1 LPCM=1 WMA=0

##### DirectShow Filters (32-bit) #####

Description: Xiph.Org Vorbis Decoder
File name: c:\users\dan\appdata\local\miphonemanager\main\codecs\dsfvorbisdecoder.dll
CLSID: {05A1D945-A794-44EF-B41A-2F851A117155}
Merit: 00600000 = MERIT_NORMAL

Description: Xiph.Org FLAC Decoder
File name: c:\users\dan\appdata\local\miphonemanager\main\codecs\dsfflacdecoder.dll
CLSID: {3376086C-D6F9-4CE4-8B89-33CD570106B5}
Merit: 00600000 = MERIT_NORMAL

Description: Xiph.Org Native FLAC Decoder
File name: c:\users\dan\appdata\local\miphonemanager\main\codecs\dsfnativeflacsource.dll
CLSID: {6DDA37BA-0553-499A-AE0D-BEBA67204548}
Merit: 00600000 = MERIT_NORMAL

Description: Xiph.Org Ogg Demuxer
File name: c:\users\dan\appdata\local\miphonemanager\main\codecs\dsfoggdemux2.dll
CLSID: {C9361F5A-3282-4944-9899-6D99CDC5370B}
Merit: 00400000 = MERIT_UNLIKELY

(A total of 93 filters, 4 shown, 89 hidden)

##### DirectShow Filters (64-bit) #####

Description: Xiph.Org Vorbis Decoder
File name: c:\users\dan\appdata\local\miphonemanager\main\codecs\x64\dsfvorbisdecoder.dll
CLSID: {05A1D945-A794-44EF-B41A-2F851A117155}
Merit: 00600000 = MERIT_NORMAL

Description: Xiph.Org FLAC Decoder
File name: c:\users\dan\appdata\local\miphonemanager\main\codecs\x64\dsfflacdecoder.dll
CLSID: {3376086C-D6F9-4CE4-8B89-33CD570106B5}
Merit: 00600000 = MERIT_NORMAL

Description: Xiph.Org Native FLAC Decoder
File name: c:\users\dan\appdata\local\miphonemanager\main\codecs\x64\dsfnativeflacsource.dll
CLSID: {6DDA37BA-0553-499A-AE0D-BEBA67204548}
Merit: 00600000 = MERIT_NORMAL

Description: Xiph.Org Ogg Demuxer
File name: c:\users\dan\appdata\local\miphonemanager\main\codecs\x64\dsfoggdemux2.dll
CLSID: {C9361F5A-3282-4944-9899-6D99CDC5370B}
Merit: 00400000 = MERIT_UNLIKELY

(A total of 80 filters, 4 shown, 76 hidden)

##### ICM Class Manager (32-bit) #####

(A total of 2 filters, 0 shown, 2 hidden)

##### ACM Class Manager (32-bit) #####

(A total of 1 filters, 0 shown, 1 hidden)

##### ICM Class Manager (64-bit) #####

(A total of 2 filters, 0 shown, 2 hidden)

##### ACM Class Manager (64-bit) #####

(A total of 1 filters, 0 shown, 1 hidden)

##### Default source filters (32-bit) #####

.flac {6DDA37BA-0553-499a-AE0D-BEBA67204548} Xiph.Org Native FLAC Decoder
.ssif {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source

(A total of 56 default source filters, 2 shown, 54 hidden)

##### Default source filters (64-bit) #####

.ssif {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source

(A total of 55 default source filters, 1 shown, 54 hidden)

##### ACM and VFW Codecs (32-bit) #####

(A total of 14 codecs, 0 shown, 14 hidden)

##### ACM and VFW Codecs (64-bit) #####

(A total of 13 codecs, 0 shown, 13 hidden)

by **Admin** Tue Apr 12, 2016 2:51 pm

There seems to be something wrong with the framerate information in this file. I will investigate it.

There is nothing wrong with your system.

by ricochet90 Tue Apr 12, 2016 2:54 pm

Admin wrote:There seems to be something wrong with the framerate information in this file. I will investigate it.

There is nothing wrong with your system.

Great,thanks.

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