Terrible "ghosting" on some MPEG4/AVC Encodes?

[iransofaraway]

Was watching an encode of Django Unchained, and noticed "ghosting", that is, when people move on the screen, it seems like there's a slight visual blurring or artifacting going on. I loaded up MediaInfo and spit out the details:

Code: Select all

Format profile : Main@L4.0 
Format settings, ReFrames : 2 frames 
Bit rate : 10 000 Kbps 
Frame rate : 23.976 fps 
Color space : YUV 
Chroma subsampling : 4:2:0 
Bit depth : 8 bits 
Encoding settings : cabac=0 / ref=1 / deblock=1:0:0 / analyse=0x1:0x111 / me=umh / subme=5 / psy=1 / psy_rd=0.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=0 / threads=6 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=3 / b_pyramid=0 / b_adapt=1 / b_bias=0 / direct=1 / weightb=0 / open_gop=0 / weightp=0 / keyint=240 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=abr / mbtree=1 / bitrate=10000 / ratetol=1.0 / qcomp=0.60 / qpmin=3 / qpmax=51 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00 
Color primaries : BT.709 
Transfer characteristics : BT.709 
Matrix coefficients : BT.709

So-- what exactly could be causing this behavior? Loading up another encode (of Gangster Squad), it looks pristine and amazing:

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Format profile : High@L4.1 
Format settings, CABAC : Yes 
Format settings, ReFrames : 5 frames 
Bit rate : 8 188 Kbps 
Frame rate : 23.976 fps 
Color space : YUV 
Chroma subsampling : 4:2:0 
Bit depth : 8 bits 
Encoding settings : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=18 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / 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=8188 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00

[Smithcraft]

The encode logs would be helpful.

SC

[iransofaraway]

Sorry, I don't have that :-/ Just the information shown.

[ty2010]

Completely different settings, even though you selected a higher bitrate for the first, cabac=0 will eat that up and then some. Ref = 1 vs 5, worse. Subme = 5 vs 7, worse. Mixed ref, trellis, 8x8dct, b_pyramid, etc. The first would have coded extremely fast in comparison though.

[mduell]

Sorry, I don't have that :-/ Just the information shown.

You cleverly posted your support request in the tiki bar to avoid the bold underlined red instructions at the top of every page telling you where to find encoding logs?