Should I Interlace this Video

[bob52]

Hello

I have the following VideoTS folder of my vaction which i have dragged from my DVD_VIDEO to the hard-disk for conversion

The files in Mpeg2 (four 3) 4:3 format, i have used DVD Patcher to change aspect ratio to 16:9


The File Info

General
Complete name : C:\Users\BOB\Desktop\ifo test\VIDEO_TS\VTS_01_1.VOB
Format : MPEG-PS
File size : 1 024 MiB
Duration : 28mn 57s
Overall bit rate mode : Variable
Overall bit rate : 4 943 Kbps
Writing library : Created by Nero
Video
ID : 224 (0xE0)
Format : MPEG Video
Format version : Version 2
Format profile : Main@Main
Format settings, BVOP : Yes
Format settings, Matrix : Custom
Format settings, GOP : M=3, N=15
Duration : 28mn 57s
Bit rate mode : Variable
Bit rate : 4 653 Kbps
Maximum bit rate : 9 641 Kbps
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Bottom Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.449
Stream size : 964 MiB (94%)
Writing library : Created by Nero
Audio
ID : 189 (0xBD)-128 (0x80)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Muxing mode : DVD-Video
Duration : 28mn 57s
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -40ms
Stream size : 39.8 MiB (4%)
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I used HandBrake to convert the file to MP4 format, but i noticed that there were lines all over the place

here's a photo to show you


<<Attachment at bottom of page>>


Should i use the Decomb filter (Default) of the Deinterlace filter (slower), as i'm reading that a lot of people use decomb, while others say if your video is Interlace use that, Or should i use both, ive tryed both of them and they work, but which one would you recommend

thank you

Bob (retired)

[Baldrick]

Yes. Use the one that looks better....and if you can't see any difference use the faster one.

[sanlyn]

According to your media info text, the video is already interlaced.

Changing a 4:3 aspect ratio to 16:9 will stretch the image on playback. Circles will look like eggs on their sides, squares will be rectangles, andScarlett Johansson will weigh 250 pounds. On a standard defintion tv, the stretched image will play as letterboxed + stretched. If you are playing the DVD with a stnadrd DVD player, you might have to adjust your tv's display to view the movie the way its creator intended.

[bob52]

According to your media info text, the video is already interlaced.

Changing a 4:3 aspect ratio to 16:9 will stretch the image on playback. Circles will look like eggs on their sides, squares will be rectangles, and Scarlett Johansson will weigh 250 pounds. On a standard defintion tv, the stretched image will play as letterboxed + stretched. If you are playing the DVD with a standard DVD player, you might have to adjust your tv's display to view the movie the way its creator intended.

Hello

Thank you in responding, I did look at the orignal vob file and the 16:9 mp4 file carefully and i could'nt see any stretching anywhere on my 32" LCD (maybe its my eyes, but i had my nose pressed to the screen)

I been reading all day about this and I dont know if the experts here recommend this for 'senior newbies' as a quick fix as you get a perfect fit, but then image size becomes 1024x576, which again i dont mind.


So i went back to the orginal VOB file (4:3) took it into handbrake

and did this

Please see attached picture

Set the sizeing to 720 x 406 keep aspect ratio is this the right setting for a PAL 720 x 576

I then ran the clip through my bluray player and its ok, just a small black border on sides about half inch (how can i lose these maybe use 720 x 420)

Can you tell me if thats the right setting....

I can either use the first step 4:3 to 16:9

or

I would like to do it the 2nd way, and whats the advantage over it compared to the first way, and i'm i losing something

Bob

[manono]

Should i use the Decomb filter (Default) of the Deinterlace filter (slower),

If you don't see any interlacing, then it's not interlaced and you shouldn't deinterlace. Most progressive PAL DVDs are encoded as interlaced. MediaInfo tells you only how it was encoded and nothing about the real content. In your first picture I don't see any interlacing (although maybe your player deinterlaced it). Don't really know. You could always upload us a small piece to examine, if you can't figure it out yourself.

Also, your lower picture isn't a good example, but it looks to me like it really might be 4:3 and you shouldn't have changed it to 16:9. Can't you find anything round in the film to check? You can play it in a player that allows for the changing of the aspect ratio (Media Player Classic Home Cinema, for example) and switch back and forth between 16:9 and 4:3 to see which looks more 'normal'.

[jman98]

Thank you in responding, I did look at the orignal vob file and the 16:9 mp4 file carefully and i could'nt see any stretching anywhere on my 32" LCD (maybe its my eyes, but i had my nose pressed to the screen)

This is not an insult directed at you, bob52. It's a statement of fact intended to help you understand. My experience is that most human beings either cannot tell or do not care when images are stretched. Most people I know watch EVERYTHING in 16:9 on their TVs, even 4:3 sources, without complaint. My brother is the ONLY person I know who I have been able to convince that watching everything in its original aspect ratio is the best idea. It's good that you checked, but honestly it means nothing because until one of us who actually can tell the difference can look, for all we know you're just another person who can't tell the difference between 16:9 and 4:3.

[jagabo]

I suspect your underlying video is progressive but the fields are stored out of phase -- ie, each frame contains fields from two separate film frames. These can be restored to fully progressive frames with a field delay filter. I recommend you post a short sample demuxed from your VOB files (not re-encoded). You can use DgIndex or Mpg2Cut2.