Playback Stuttering on SSD

fpga123

Distinguished
Aug 31, 2011
119
2
18,715
My company recently made an ad and sent me a (ripped?) copy to review, the problem is that neither of my hard disks nor my system SSD gives smooth playback. I use k-lite codec pack (v10.0) and the accompanying player for my multimedia viewing needs.

I normally use madVR+LAV+DXVA2 as the default renderer and codec but it catches up to the content in about 20 seconds. Like first I get the audio then a still image then a slowly moving, then stabilizing frame rate but it deteriorates whenever the bit rate increases to accommodate the change in the frames. The statistics show zero delay but a lot of frame drops, almost one third of the total at any given time.

I have tried reverting to EVR but it rather gives the opposite in statistics, i.e. delay of 40-60ms with zero drops.

The file's bit rate is around 12Mbps but I have run 35Mbps original content before and had only encountered stuttering on a mistakenly encoded ad at 62Mbps.

I have also graphed the SSD usage and found only 1-3MB reads taking place at any given time. The CPU and GPU remain under 10%.

Is it my computer or is it the file? Please help.

My Computer Specifications:

Intel Core i3 2100 3.1GHz
ASRock B75M
8GB RAM
XFX HD6950 1GB
Kingston SSD V+ 200 60GB SATA3
1TB Cavier Green SATA3
500GB Cavier Green SATA2

The media file has the following attributes:

Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 2.06 GiB
Duration : 24mn 29s
Overall bit rate mode : Variable
Overall bit rate : 12.0 Mbps
Writing application : Lavf52.64.2

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.2
Format settings, CABAC : Yes
Format settings, ReFrames : 2 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 24mn 29s
Duration_FirstFrame : -15ms
Duration_LastFrame : -15ms
Bit rate : 11.9 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 59.940 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.096
Stream size : 2.03 GiB (99%)
Writing library : x264 core 102 r1666 d058f37
Encoding settings : cabac=1 / ref=2 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=24 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=3 / b_pyramid=0 / b_adapt=1 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=20.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / 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 : 24mn 29s
Bit rate mode : Variable
Bit rate : 152 Kbps
Channel count : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Delay relative to video : 1ms
Stream size : 26.6 MiB (1%)
 
The video is quiet stable now, thanks. Unquestionably the quality hit is pretty immense but I think that's what its originally is like. Thanks again.
 


You're quite welcome.

Yogi

 

Latest posts