Moth3r

thorr said:

d020 said:

Why would you like to add black bars? As said before, it´s not necessary in MKV. The test video looked great on my PC aside from the pulldown. In my opinion it only would blow up the file size and make it more complicated to edit the video or using anamorphic lenses on beamers etc.

But if there´s a good reason to do so maybe you could do a version without.

 

The reason is so you can play it on a blu-ray player and remove the requirement to use a PC or other device.  Adding black bars is negligable in terms of file size (it's all black and never changes), and also, it does not make it more complicated with anamorphic lenses at all.  It will be the same as playing any blu-ray.  On the other hand, if it was encoded without the black bars, it would need to be re- encoded to be blu-ray compatible (extra work for Puggo, or video loss for us if he doesn't do it to begin with and leaves it up to us to re-encode).  I am not 100% sure if what I am saying is true about the 720 requirement  because I haven't tried to create a blu-ray (actually I mean an AVCHD DVD) from Puggo's file yet to test it.  Maybe it is not needed.

My 2p's worth - if you're going to add the black bars to make it suitable for authoring to AVCHD or BD9, you may as well go the whole hog and release in that format. I don't know how much effect adding the black borders would have on the bitrate available to the video - maybe it is negligible. But those with BD players or PS3s can simply burn and play.

On the other hand, those who have alternative playback arrangements (Popcorn Hour, WDTV, HTPC, jailbroken Apple TV/XBMC, or even just hooking a laptop up to  the TV) would be happy with a MKV without the black bars.

I would not recommend you use the noise reduction preprocessing option in VirtualDub, you can get better results if you process after capturing. Set your format, frame rate, levels, and if you're using YUY2 I'd recommend you check both options for extending luma black & white points.

For post-processing, you'll probably want IVTC, maybe some sort of colour adjustment using levels or HSV adjust, and perhaps some noise reduction (smoother). To be honest, I'm not really up on the latest options in VDub, I switched to using AviSynth years ago which is much more powerful.

Possibly related to the chroma upsampling method used during a colourspace conversion? (I don't know, I've never used MPEG Streamclip). Basically, if you're converting video that uses the YV12 colourspace into YUY2 or RGB, the chroma needs to be upsampled differently depending on whether the video is progressive or interlaced.

But then, I don't know why enabling this option would make the video larger.

Looks like the next avatar theme has been decided.

Goodbye Lemming.

Harmy said:

I would recommend using 23.976fps instead of 24fps, because 24fps can cause playback problems. Ady made his EpIV AVCHD 24fps and I know there were people who had to remux it to 23,976 in order to play it.

I've also read that playback of true 24fps can be problematic. I believe that the majority of Blu-ray Discs are encoded at 23.976fps?

Since a 0.1% difference in speed is negligible, and Puggo will be re-syncing the audio anyway, it would be wisser to go with 23.976fps. The AviSynth command is then:

AssumeFPS("ntsc_film")

Clip is excellent Puggo, pseudo-HD is definitely the way to go with this. Will share some of my thoughts on the questions raised a bit later.

The video is easy - if you're using an AviSynth script, just add AssumeFPS("film"). This will cause the video to play at the correct speed without changing any frames.

You could also use AudioDub() to add the audio for your sync check. There's also a great filter that adds the audio waveform over the top of the video to assist with this process, I'll post back when I remember its name.

Edit - AudioGraph

To mux final video and audio together into the MKV container use mkvmerge.

Pulldown is not necessary for video in the MKV container - it can be 24fps (or 23.976fps) natively.

I seem to recall that Rob and Stinky are neighbours in a cube farm.

http://www.blamld.com/laserdisc/faq/FAQ_Hardware.htm#ComplaintsDefectsCrosstalk

Yet another clipped white level example:

^ WOW!

^ GOUT 

The vectorscope on the 2nd image also show the potential problem problem with the reds if you apply any saturation increase to the GOUT video. The grey square represents the legal YUV colourspace (anything outside this gets clipped when converting to RGB for display) - you can see that the red lights are already at the max even before any tweaking. 

Also interesting that the WOW shot has orange lights instead of yellow on the top right panel, and Han's shirt has a red cast to it. Colour timing error or deliberate creative decision? ;-)

thejediknighthusezni said:

Apologies! This was supposed to go into into the "How would you redo the Prequels" thread in scriptwriting. If someone could move it there I'd be very grateful! My PC is acting strange. Won't even write properly

Sorry, individual posts can't be moved, only complete threads. If you copy/paste your text into a new post in the correct thread I'll delete this one.

twooffour said:

heh :)

I also tossed a personal attack at the guy a few days ago, in another thread, but the awesome moderation here managed to miss that... congrats

Care to provide a link?

Video Collector said:

Hmmm...

Intriguing... That's the whiteout frame where they segue between the two model shots, right?

Could you post the frames immediately before and after from WoW!?

1:

2:

3:

ChainsawAsh said:

"BD-9" and "AVCHD disc" are the same thing.  Blu-Ray format on a DVD-9.

No, they are not the same. You could consider AVCHD to be a "stripped-down" version of the Blu-ray Disc format with different specs to BD (bitrate/codec restrictions, etc.)

Technically, BD-9 is inaccurate anyway, since it's burned using a red laser on DVD media, not Blu-Ray media.  AVCHD disc is the correct term.

BD9 is an official format for Blu-ray Disc video on a 8.5GB dual-layer DVD. Commercially it didn't catch on as the manufacturing cost of 25/50GB Blu-ray media dropped, but it's popular with home users. (By extension, BD5 is the same on a single-layer DVD, but this is an unofficial format.)

There is actually some "super-white" information in the GOUT video - pixels with a luma value greater than 235. (You can see these areas encroaching into the orange region on the waveform monitor.)

However, I don't think reducing the level of these pixels to <235 is going to recover any significant detail.

Talking of overblown whites, I found this shot interesting in the THX WOW! sequence:

It's a frame from the fighter POV shot during the entry into the DS trench. Every other version, including the GOUT, has a solid white frame at this point:

We have a separate forum for technical questions, here:
http://originaltrilogy.com/forum/forum.cfm/How-Tos-and-Technical-Discussions/forum/12/

Please try and use that forum, especially for questions that are completely unrelated to this thread.

Yes, certainly looks like an optical splice. I assume these frame are either side of a shot change?

There was only ever a Ep IV release from Flunk I think.

Thanks to Jambe Davdar for dropping us a mention in his interview with The Film Programme on BBC Radio 4 this afternoon.

UK residents can listen to it here:

http://www.bbc.co.uk/programmes/b00z62g9#synopsis

Jambe Davdar said:

For those of you in the UK, I was interviewed by the BBC Radio Film Programme. It airs this Friday at 16:30. Amazing that Star Wars Begins has reached such a serious and well respected programme. For everyone else there will be a podcast up soon. I will post the link provided the interview edit turns out well.

I will listen to that tonight on my way home from work!

Have you tried clearing your browser cache?

Did you do any sharpening for the DVDs? Screenshots from your discs look slightly sharper than the DJ/g-force versions.

You could try the Vocal Remover in Audacity to remove the voice leaving the music only. Then subtract this music from the original file (invert then merge).

I once tried using this effect for creating a karaoke track. It didn't work very well, but YMMV.