Forum - View topicAnswerman - How Is Anime Transported To Other Countries?
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Amara Tenoh
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{Edit}: Pointless 1 word post removed. ~ Psycho 101}
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Kougeru
 Posts: 5577 |
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"A typical anime episode is around 37 GB,"
Wow...that's some crazy compression to get them down to 200-500 MBs. Make me wonder what they look like lossless. |
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MarshalBanana
 Posts: 5500 |
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I remember in Animation Runner Kuromi, there was a part where she had to drive like mad to meet a shipping date for the Key frames. I wonder if they still send them over like that, or scan send and then print(which seems like more work in a way).
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SilverTalon01
Posts: 2417 |
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Uh, a 1080p anime episode takes way, way more than that much space on a bluray. |
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Paiprince
 Posts: 593 |
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Not surprised they still rely on rather archaic forms of delivery. Anime is one of the most illegally distributed media floating around the net. The last thing they want is leaking episodes before air times because someone cracked their FTP.
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samuelp
Industry Insider
Posts: 2246 Location: San Antonio, USA |
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Not to nitpick, but there's a bunch of inaccuracies here:
I think you mean distant descendant.
Very few, if any (I'm not aware of any), animation studios themselves own their own HDCam SR decks. It's the final editing studio like Imagica or Sony PCL that creates the SR master tapes. Furthermore, the only TV station which uses HDCAM-SR for broadcast masters is NHK to my knowledge. TV Tokyo, NTV, Tokyo MX, Asahi TV (at least those are the ones I am aware of specifically) all still use normal HDCAM for broadcast masters, because they don't own enough SR decks (or any in some cases), only NHK had the cash to upgrade fully to SR.
Only true up until about 3 years ago when some amazing russian person reverse engineered the codec and added an encoder to ffmpeg. Also, with the recent discontinuing of support for Quicktime on Windows, technically it won't be possible to decode prores on windows anymore since all the windows software just used the quicktime for windows libraries to decode. Prores is being replaced because of this now with AVC Intra... (50-150Mb/s high profile 422, intra frame only h.264). |
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samuelp
Industry Insider
Posts: 2246 Location: San Antonio, USA |
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Well, you can do the math: 1920x1080 = ~2 million pixels * 3 bytes per pixel = 5.93 MB per frame, times 23.976*25 minutes * 60 = ~213,000 MB = 200+ GB. So true uncompressed is more than 200GB per episode. Prores gets you down by a factor of 6-7 times smaller than true uncompressed. And it manages to do that with almost no perceptible quality loss (a true lossless compression like huffyuv can usually get an episode down to 75-125 GB, but that depends on how noisy the source is). So if you get them all the way down to streaming size, you're talking about compressing the original data down by a factor of 400-500! That's the power of H.264 really. Last edited by samuelp on Fri Jun 24, 2016 2:47 pm; edited 1 time in total |
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Polycell
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samuelp
Industry Insider
Posts: 2246 Location: San Antonio, USA |
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There's the lossless encoding profile for HEVC that's actually pretty decent compression, but the software to create it/read it is barely developed yet (x265 can create them but I don't know any pro software that handles them). http://x265.readthedocs.io/en/default/lossless.html Unlike H.264, there has been a lossless profile in the HEVC standard from the start. There's definitely been progress on lossless codecs over the past 3-4 years though, thanks to the fancy intra encoding techniques used in HEVC. |
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SilverTalon01
Posts: 2417 |
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I have a feeling that it has more to do with Japan being really slow on adopting new tech than it does with their fight against piracy. |
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srlracing
 Posts: 87 |
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I worked with Aspera's technology years ago when it was still in its infancy and essentially what it amounts to is a proprietary protocol similar to UDP where it does not do error checking and handshakes for every packet but instead only performs these actions once at the beginning and once at the end allowing for much greater utilization of the speed of the connection (usually only around 20% efficient). The biggest benefit to this method other than the more efficient utilization of bandwidth is a MUCH greater real world transfer speed of large files over great distances that is traditionally bottlenecked by latency. Transfer speeds were so fast that in order to utilize its full potential you had to build dedicated file transfer servers with a bank of more than a dozen SSDs (at the time hugely expensive) in a RAID configuration just to send and catch the data quick enough because a standard server could not get anywhere near being able to handle it.
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Paiprince
Posts: 593 |
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Why does it have to be an either-or dichotomy? They're at least aware of the problem as evidenced by this video: https://www.youtube.com/watch?v=bPa03aSb5oA |
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SilverTalon01
Posts: 2417 |
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Because in all likelihood it is. Japan in general is really slow to abandon archaic methods and adopt new ones. http://www.bbc.com/news/business-34667380 Yes... they are aware of, worried about, and fight against piracy. Your video does not show any real concern about things pirated due to the security of FTP or other newer forms of delivery. |
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Paiprince
Posts: 593 |
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They crack down on illegal file sharing HARD. This not real concern enough for you? https://torrentfreak.com/japan-police-arrest-44-in-nationwide-internet-piracy-crackdown-160224/ I know there are slips in the cracks, but for the most part they are up in their game in regards to combating illegal distribution And in regards to that BBC article, it's a mix of unrealistic expectations and ethnocentrism with confirmation biases abound. The utter notion that Japan is a complete tech utopia is frankly ridiculous and only serves to boost one's own nationalistic ego. The US and UK are in the same boat in that for every Silicon Valley or tech district they have, lies multiple areas that still use outdated tech. Hell, said government computers still rely on XP OS'es. [/b] |
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toyNN
 Posts: 252 Location: Seattle, WA |
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Interesting technical post and comments - can't add much other than I like reading about all of it.
I am curious how the subtitler gets a copy of the anime so they can do their work for the simulcast delivery to Crunchyroll or other providers. I was thinking they weren't specifically part of Crunchyroll but did it somewhat independently contracted in Japan. |
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