Avi conversion output still has too many blocks
In one of my recent avi conversion projects I had good results using the V4 script from optimal scripts thread but still sometimes there are still blocks visible. Is this normal or can it still be better ?
The .avi (Disney/Pixar animation) is of very good quality and is a little over 100 minutes long. I had a CQ of 62 and min/max bitrates at 400/2200. Audio at 112Kbps/dual channel. NTSC 480x480, Encoder=TMPGEnc 2.513.53.162. Other settings see below. I was wondering to get the very best what is still possible (regarding script) ? Will post screenshots if necessary..... Just wondering PS: by the way, my 2disc SVCD->1 discKVCD project is encoding as we speak. That's why I rather don't make screenshot right now. Looking forward to hearing suggestions...... - Motion search prec.: Motion estimate search (fast) - Field order: Yes - DC component prec.: 8 bits - Output YUV as YCbCr: No - Floating point DCT: Yes - No motion search: False - Soften block noise: No - iDCT Algorithm: - NTSC Field Operation: - Deinterlace: None - Pulldown: Yes, TMPGEnc internal - Width: 480 - Height: 480 - Matrix: Intra: 8 16 19 22 26 27 29 34 16 19 22 26 27 29 34 37 19 22 26 27 29 34 37 38 22 26 27 31 36 37 38 40 26 27 29 36 39 38 40 48 27 29 34 37 38 40 48 58 29 34 37 38 40 48 58 69 34 37 38 40 48 58 69 79 Non-Intra: 16 18 20 22 24 26 28 30 18 20 22 24 26 28 30 32 20 22 24 26 28 30 32 34 22 24 26 30 32 32 34 36 24 26 28 32 34 34 36 38 26 28 30 32 34 36 38 40 28 30 32 34 36 38 42 42 30 32 34 36 38 40 42 44 AVISYNTH SCRIPT: LoadPlugin("C:\PROGRA~1\DVD2SVCD\AVISYN~1.5PL\Mpeg 2dec\MPEG2D~1.DLL") AVISource("C:\PROGRA~1\eMule\Incoming\FINDIN~1.AVI ",False) ConvertToYUY2() BlindPP(cpu=4) Blockbuster(method="noise",detail_min=1,detail_max =3,variance=0.1,seed=1) Convolution3D(1, 6, 12, 6, 8, 2.8, 0) GripCrop(480, 480+0+0, overscan=1, source_anamorphic=false, dest_anamorphic=false) GripSize(resizer="LanczosResize") Undot() TemporalSoften(2,7,7,3,2) DCTFilter(1,1,1,1,1,1,0.5,0) GripBorders() function ConvertToYUY2(clip c){ return isYV12(c) ? c : convertToYV12(c) } Textsub("D:\workdirectorymovie\subtitle.srt") AUDIO INFO: - Audiostreams: 1 - Audio 1 Language: Unspecified - Audio 1 Bitrate: 112 - Audio 1 Sample freq: 44100 - Audio 1 Mode: Dual channel - Audio 1 Besweet: AUTHORING INFO: - CD Image program: VCDXBuild - Entrysvd: No |
I'd say that your CQ is just a little too low for SVCD resolution, and the blocks are due to bitrate shortage, when your Source is blockless.
If your player supports it use a lower minimum bitrate like 64 kbit/sec... This will give more bitrate to the high action scenes. (I suppose those are the blocky scenes right?) Other than that use a little blur Filter like MergeChroma(blur(1.5)) to gain some CQ points without hurting the quality too much. :wink: |
And I would say that your blocks are due to some underwater scenes very hard to encode.
I think I know your movie and lot of people have difficulty with it. Search in the forum ;-) Note: use the second blockbuster line I recommand to use in difficult cases, it necessary for that movie. |
@Jellygoose
I use the min bitrate of 400 for compatibility reasons. Some players were not happy with the 300 I used before, but I think I will switch back to 300, because I doubt this min bitrate setting was the problem with my brothers Philips player @Dialhot I think you guessed right about the particular movie :lol: . I have to say I am quite happy with the endresult (way worse versions out there of socalled "masterrippers") and yes, most blocks are during underwater scenes. As I seem to have deleted the original .avi I have no other choice but.......were should the second Blockbuster line be put in the script ? (for next projects could be useful). -> Ah, I see now (After the DCT filter right ?) You also wrote that sometimes the second blockbuster line only makes things worse I believe (?). |
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cant do anything about the blocks.....especially on black backgrounds!
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