View Full Version : 640x480 25fps to Anamorphic 16:9 NTSC
bmnot
10th March 2009, 22:00
I was staying in europe a few weeks ago and I thought I'd capture a German movie and then get the subtitles for it and watch it back home. Well, I captured the flick using my capture card and made sure I changed the FPS in my capture software to 25fps, but I forgot to change the capture resolution from 640x480 to 640x576. So basically I have a movie with a PAL FPS and an NTSC resolution that I want to convert into Anamorphic 16:9 (720x480) NTSC for DVD playback.
I thought it would be as simple as
crop(0,60,720,360)
LanczosResize(720,480)
along with SmoothDeinterlace to convert the FPS, but it can't be that easy (can it?)
Please steer me in the correct direction and help me convert this.
DJ Bobo
10th March 2009, 22:30
Well that capture resolution was a bad choice for sure.
If you could upload a small portion (30 seconds should be enough), we can see how the movie was converted to PAL, because some TV stations mess up the conversion, like duplicating every 11th field or so instead of accelerating from 24 to 25fps.
And most of the time, captures aren't progressive all the way, which means you would have to deinterlace by matching fields even if they accelerated to 25fps. But I don't know if that's going to work well, since you captured only 480 lines instead of 576...
bmnot
10th March 2009, 22:53
Here's a 30s sample, the movie is "Das Millionenspiel" it's a movie about a gameshow where they kill people. The download should start right away when you click the link.
sample.avi (http://www.hotlinkfiles.com/files/2370157_mo637/sample.avi)
Undead Sega
10th March 2009, 23:48
i looked at the sample, and it isnt widescreen, so why do u need it as a 16:9?
Sagekilla
11th March 2009, 00:10
If he captured it as 640x480 from a 640x576, of course it isn't wide screen. Normal PAL widescreen stretches to 1024x576.
Undead Sega
11th March 2009, 01:32
upon viewing the sample, i dont think the footage itself was broadcasted 16:9 otherwise the image would look squashed.
bmnot
11th March 2009, 01:37
Is there a way I could get this into 16:9 without wrecking it, you know, just for the sake of not having it in 4:3 (I actually strongly watching anything in fullscreen)
Sagekilla
11th March 2009, 04:24
Only way would be to crop from 640x480 (if it's native 4:3) to 640x360. Otherwise, there's no way without introducing distortion.
um3k
11th March 2009, 16:26
(I actually strongly watching anything in fullscreen)
You accidentally what the whole thing?!
bmnot
11th March 2009, 23:36
You accidentally what the whole thing?!
Wow, that's kinda awkward, I meant to say I hate watching anything in fullscreen
Leak
11th March 2009, 23:39
Wow, that's kinda awkward, I meant to say I hate watching anything in fullscreen
:confused:
I on the other hand couldn't stand watching a movie in a window that only covered a quarter of my screen or so, never mind the tearing you usually get when not watching full screen...
EDIT: Or did you mean "4:3" instead of "fullscreen"? Cause, you know, "fullscreen" is an awkward term to use in that case...
np: Justus Köhncke - Parage (Safe And Sound)
kemuri-_9
12th March 2009, 00:48
Wow, that's kinda awkward, I meant to say I hate watching anything in fullscreen
if it's originally 4:3 then you're distorting it to make it 16:9....
distortions are :(
Who Am I ?
12th March 2009, 01:40
I was staying in europe a few weeks ago and I thought I'd capture a German movie and then get the subtitles for it and watch it back home. Well, I captured the flick using my capture card and made sure I changed the FPS in my capture software to 25fps, but I forgot to change the capture resolution from 640x480 to 640x576. So basically I have a movie with a PAL FPS and an NTSC resolution that I want to convert into Anamorphic 16:9 (720x480) NTSC for DVD playback.
I thought it would be as simple as
crop(0,60,720,360)
LanczosResize(720,480)
along with SmoothDeinterlace to convert the FPS, but it can't be that easy (can it?)
Please steer me in the correct direction and help me convert this.
hey !
well i downloaded your provided sample and had a look at it .. first off all you gave a already deinterlaced and cropped clip so all i did was addborders and then resize to the standard NTSC resolution ( 720 x 480 ) which is displayed on NTSC DVD PLAYERS as 853 x 480 ( dvd flags ) .. and hence here it is
http://i43.tinypic.com/2vsf9s6.png
all i did was :
addborders(50,0,50,0)
Lanczos4Resize(720,480)
now to come to the point , you seem to be having a PAL source ( retaild dvd / dvd ) which you want too convert into NTSC ? well you have 2 ways , either encode the video this way and deinterlace only too 25 fps ( what you've done already ) and then pulldown the ,mpv file to a .m2v file using dgpulldown ..
then apply the 4 % speedup to the audio in besweet/whatever audio encoder you use and voila you should be done .
i hope u know what your doing because to get a DVD compliant stream you'll need to use dvd rebuilder / cinema craft encoder / HcENC ( highly recommended in your case ) etc .. anything which output's DVD material as that is what you seem to be looking for .
Undead Sega
12th March 2009, 15:07
i can see distortions already, the original capture is not a 16:9 broadcast, and yes capturing at that resolution would already be distorting it, abit like trying to cram the orginal size into a new size, but im not entirely sure, what i would do is basically resize the capture to 720 x 480 and add a pulldown from 25p to 29.97.
at the end, u would have to watch it pillarboxed.
DJ Bobo
12th March 2009, 15:16
I agree, this is a 4:3 broadcast, it is not 16:9, so forget this anamorphic 16:9 thing.
If the video shows no interlacing from start to end, then just resize to 720x480 and specify an aspect ratio of 4:3 in your encoding program.
No cropping, no adding borders, nothing, just resize.
After encoding, you'd need to change the framerate like suggested before by using dgpulldown
If your video does show interlacing in some places, I would need a sample from those places, to see if deinterlacing is possible at all.
Leak
29th March 2009, 13:49
For what it's worth - this movie is finally being released on DVD (http://www.amazon.de/dp/B001SGF7XA) this april... :)
np: Tocotronic - 17 (K.O.O.K.)
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