Svcd has blocky picture.

[Yelever]

Encoded to svcd with tmpgenc and in some places of the video is blocky. It`s not just on 1 film but everyone I encode. The orginal file is ntscfilm and I use the normal ntscfilm svcd template to encode

[hartzpad]

I've had all of mine turn out that way too. But when you say blocky, I assume you mean just little square blocks at certain parts of the movie, it looks like when digital cable boxes have trouble decoding a channel for a second and then it clears up. If yours is worse than that, then that sucks, but mine isn't that bad, just barely noticeable, I can live with it, but would like to fix it if possible.

[Yelever]

Yeah. Thats wot i get but can be annoying when the orignal files are perfect quality. I don`t mind losing some quailty but when i encode to normal vcd the blocks aren`t there but get alot of jeckyness on the picture

[Nelson37]

Either increase bitrate or decrease amount of bitrate needed. Clean source, smoothing filters, Crop overscan area and add borders, use CVD resolution or, and I saved the best for last, IVTC!!! Removes 20% of the data to be encoded with NO loss in quality. Assuming you're in NTSC land and the source in Telecined.

[Yelever]

This may sound really stupid but how do you that?

[Nelson37]

Here's a quick summary, do a search for more info, it can be a bit tricky.

Most movies are shot at 24 fps, then converted to 30 fps (TeleCined) by a process of duplicating fields. Step thru a motion scene frame by frame, if you see interlacing on 2 out of 5 frames, it is TeleCined. TMPGenc has an InVerse TeleCine function (IVTC) which removes the extra frames to get back to the original 24 fps, there are also AviSynth filters, Vdub does not actually remove the extra frames.

But, there you are, 20% less frames to encode but no loss of quality. Now, for playback other than VCD, you have to add a pulldown flag to tell the DVD player to re-do the TeleCine for 30 fps playback. VCD should not need this, though some players do. Use Pulldown.exe.

Note that DVD use the flag, but are actually NOT Telecined on the disk, that's where the Forced Film (no pulldown flag) is used in DVD2AVI. This is true for most, but not all, DVD.

The quality boost from IVTC is the single best thing I ever discovered here to improve video quality.

[Yelever]

Ok. I understand about ivtc now i think. The next question is can it be used on films that are 23.936fps to improve the quailty?

[Nelson37]

If actual playback is 23.976, then no. BUT, most such have the pulldown flag imbedded to achieve 29 fps playback. This is SOFT TeleCine, use Forced Film to remove flag, not necessary to IVTC unless captured at 29 fps.

Clear as mud, ain't it?