Playing with mpv.
They appear mostly on curvatures when the screen is “moving” vertically.
Thanks! :D veni vidi vici :)
this is an interlaced video, you can just press D iirc
WHAT IS THIS WITCHCRAFT XD
ffmpeg magic, I suppose…
Thanks! :D
.iso is a disk image, DVD is an optical disc format, and MPV is a software media player. None of these really have anything to do with anything.
You’re probably dealing with MPEG-2 video (what was standard on DVD) with low frame rates and the player is trying (badly) to fill in the gaps. But let me be clear, I’m not besmirching MPV, it’s probably doing the best it can. It’s probably the source. If it’s from DVD, it’s max 720x480 (16:9; 640x480 for 4:3, not sure what these old Naruto eps are in). So you could do better with some webrip from Crunchy or whatever where it’s 1080p, either natively or, for the old Naruto, possibly upscaled. Or just find it in 720p (1280x720).
(Just checked mine, it’s 480p.) (Let me know what episode and time stamp this is and I’ll check mine.)
it’s probably doing the best it can.
As an anime fan, I once made the mistake of buying a video cd. Two episodes per disc, you can imagine.
I bought .hack//SIGN like that. Except I think it was 4 per disc. Something like 24 episodes, it had six discs. But some had more than others. What was cool was if you put the DVD cases together, they had letters on them, and they spelled LOGOUT. So it was basically SAO before SAO was SAO… only it was one guy trapped in the game, not ten thousand. Ton of other similarities. Not that I like it more — SAO did almost everything better, even if it was completely derivative.
Back in the day, Star Trek episodes used to come on VHS, two episodes to a tape.
Two episode a tape?! How long was one episode again?
Around 45 minutes an episode.
So, VHS tapes (for those who don’t know — not saying you don’t, but, for the benefit of others) were limited in how much video they could hold by the length of tape spooled up. That had a physical limit, but tape could be recorded at three speeds (possibly more, but home players could only play three speeds, so that was the standard). If you had 2 hours of tape at SP, you had 4 hours at LP, and either 6 or 8 at EP (I forget which). Not sure if they had formal names, but we called them Standard, Long, and Extended Play.
Some cheap tapes came with like half an hour at SP but were recorded at EP speeds so they could save pennies on the tape.
I imagine the Star Trek tapes were your bog standard 2 hour tapes, but they might have cut some off at the end as it wasn’t needed.
If you had extra tape, the tape would continue to play (with nothing to show) until it reached the end, so it was a waste for all involved, especially since some home players, when they reached the end, would automatically rewind the tape.
I miss cassettes. 8-tracks, VHS, Betamax, and audio cassette tapes. They just had a feel to them. The media quality sucked, but nostalgia is always rose tinted.
Damn that’s a lot of new information to me xD
I can unfortunately not tell you the episode or the timestamp since the files I’m playing are whole discs, containing several episodes each. Does this give you anything?
Well, it tells you I was right about the resolution (720x480) and it gives you the frame rate, 29.97 (effectively 30 but not quite, mathematically). And the audio is basically uncompressed 48khz at 1536kbps. And that you’re watching in Japanese (ja) and English (en) isn’t available.
It looks like you’re 14:20 into a 1:09:27 DVD which is like 3 episodes?
Yeah :D if you’re familiar with the story, then it’s Sakura’s and Ino’s duel.
While the aspect ratio is such that the picture is a square with some empty space on the sides, I don’t understand how a measly 720x480 can look this “unpixelated” on my 43 inch 4K TV screen…
I’m not. Naruto is on my server because my wife asked for it. But, she’s watching One Piece instead. It’s still on my server because I haven’t had to make room yet.
(One Piece is not on my server. She’s watching that on Netflix.)
Haha! Welcome to the world of interlaced video my friend.
LOL record quick reply :D
I’ll look it up. Thanks! :)
Is it “bad”? I always try to download the biggest possible files to get the best possible quality on my 4K TV, focusing on highest bitrate in particular. I wasn’t prepared for these “lines” :D
Most video playing apps have an option for this, I know VLC does.
It was a way of setting up video to save size while not sacrificing visual quality on old CRT TVs. Got left behind as it looks like this on more modern TVs.
So there are some exceptions to size being quality, and you’ve found the most obvious one. .ISO files are full copies of discs, including blank space or filler garbage data. So a DVD might only have a 1GB game on it, but the disc is 4GB, so the ISO is 4GB. Video discs are usually filled more “fully”, but then there are also limitations with how the video can be encoded for DVD that tends to make the video files larger than they would be using more modern formats.
All that to say, if you aren’t interested in the special features on a DVD, or the experience of switching virtuap discs, you’re probably better off looking for the video files outside of an ISO file, if the ISO is of a DVD.
Blu-ray ISOs are closer to space effective, but it’s still most effective to get just the video files.
Woa! Thanks for sharing this! Didn’t know that DVD and Blu-ray have efficiency problems. When I don’t grab .ISO images, I usually go for Blu-ray remuxes with the highest bitrate I can find. Am I right to assume that higher bitrates helps with banding? I hate banding… XD sorry for sounding childish. It’s my day off. :)
It isn’t necessarily bad, it’s just an old way to handle low bandwidth. It sucks when video editing, but aside from when we see them when pausing (like your images), it’s very rare we actually notice (from personal experience, at least).
It can be noticeable during regular playback on a modern display, under the right conditions. Anime is one of those due to the high contrast in the picture.
It was also weird to pause an interlaced video on VHS and watch it alternate between frames. Any objects in motion would jump back and forth.
Ah, I see. I just read the Wikipedia entry on interlaced video and learned that it’s called “combing”.
I was actually just continuously taking a lot of images until the combing was visible. Didn’t pause. ^^
Hail
mpv. It does an AMAZING job at deinterlacing, as an other commenter just taught me. No more combing. :)Ahh to be young(er), lots of old TV and media was in ntsc and pal format for broadcast, so it’s interlaced cause bandwidth and storage media cost (you only need to refresh half the crt each pass). There used to be so many threads on doom 9 on the best pipeline for virtualdub(mod) to deintelace and make progressive encodes to divx etc
Actually, interlaced video in NTSC signal was because the NTSC signal was what we used on old school televisions. An old school televisions used an interlaced scan to display the images. Displayed half the image in one scan and then another display the other one and it displayed both of them so fast it appeared to be one image. That’s why TV screens flicker.
We are saying the same thing aren’t we?
Not exactly. It’s true that interlaced signals are good at low bandwidth, but the televisions themselves had an interlaced scan picture, so that’s the main reason why NTSC is broadcast interlaced. For the televisions themselves. When we moved away from analog video to digital video, even television signals in the United States began to transition to a progressive scan, especially when we moved to HD and HDTVs
