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→Metadata: The metadata length is fixed
'''Nintendo Video''' is a service allowing owners of American, Japanese, and European 3DSes to download and watch various videos offered by Nintendo. Nintendo Video uses SpotPass to download videos even when the Nintendo Video app itself is not running. Service was discontinued March 31 2014.
'''Nintendo Video''' is a service allowing owners of American, Japanese, and European 3DS's to download and watch various videos offered by Nintendo. Nintendo Video uses SpotPass to download videos, even when the Nintendo Video app itself is not running. Nintendo Video was discontinued March 31, 2014.
'''Eurosport''' is a service similar to '''Nintendo Video''' and allowing owners of European 3DSes to download and watch various videos offered by Eurosport. This service was discontinued December 31 2012.
'''Eurosport''' is a service similar to '''Nintendo Video''' and allowing owners of European 3DS's to download and watch various videos offered by Eurosport. Eurosport was discontinued December 31, 2012.
== Internet connection ==
== Internet connection ==
To identify your 3DS's region and country, different URLs are requested by 3DS's from different countries. A URL contains a subdomain that's specific for your region (EU/USA/JP), a country code that's specific to your country and a language code. Here's a table containing country codes and subdomains known so far and corresponding file names:
To identify your 3DS's region and country, different URLs are requested by 3DS's from different countries. A URL contains a subdomain that's specific for your region (EU/USA/JP), a country code that's specific to your country, and a language code. Here's a table containing country codes and subdomains known so far and their corresponding file names:
{| class="wikitable"
{| class="wikitable"
In all requests below, ''COUNTRYCODE'' should be replaced with your country's code, ''COUNTRYSUBDOMAIN'' should be replaced with your region's subdomain. ''FILENAME'' are also depends on the region and should be replaced correspondingly. ''LANGUAGECODE'' should be replaced by a desired language (by now most of the content are the same for all available languages, so one can use "1" as a most common).
In all requests below, ''COUNTRYCODE'' should be replaced with your country's code, ''COUNTRYSUBDOMAIN'' should be replaced with your region's subdomain. ''FILENAME'' are also depends on the region and should be replaced correspondingly. ''LANGUAGECODE'' should be replaced by a desired language (by now most of the content are the same for all available languages, so one can use "1" as a most common).
Surprisingly, Nintendo Video uses plain unencrypted HTTP connection to transfer videos. When "Connectivity check" button is pressed, Nintendo Video sends a following HTTP request to ''COUNTRYSUBDOMAIN''.est.c.app.nintendowifi.net:
Surprisingly, Nintendo Video uses plain unencrypted HTTP connection to transfer videos. When "connectivity check" button is pressed, Nintendo Video sends a following HTTP request to ''COUNTRYSUBDOMAIN''.est.c.app.nintendowifi.net:
<tt>GET /1/''COUNTRYCODE''/''LANGUAGECODE''/CHECK HTTP/1.1
<tt>GET /1/''COUNTRYCODE''/''LANGUAGECODE''/CHECK HTTP/1.1
Host: ''COUNTRYSUBDOMAIN''.est.c.app.nintendowifi.net</tt>
Host: ''COUNTRYSUBDOMAIN''.est.c.app.nintendowifi.net</tt>
''FILENAMEi'' seems to return 403 if user's region doesn't match, 404 if ''i''th video doesn't exist and the video itself otherwise. As of 18th of July 2011, only 1st and 2nd videos are available from UK IP addresses.
''FILENAME'' seems to return a 403 error if the user's region doesn't match, 404 if the video doesn't exist and the video itself otherwise. As of July 18th, 2011, only 1st and 2nd videos are available from UK IP addresses.
For Japan region /1/1/0/ESJ_CNF must also present on a server in order to play video files.
For Japan region /1/1/0/ESJ_CNF must also present on a server in order to play video files.
== SD storage ==
== SD storage ==
Downloaded videos are stored in the SD card [[Extdata]], from the decrypted [[SpotPass]] content payload. Country info is presumably stored in this metadata, region-lock is handled by the BOSS module via the programID in the [[SpotPass#Payload Content Header|payload header]]. At the end of the video file is a JPEG, which contains the video thumbnail, and various metadata in the EXIF including the URL associated with the video. The text shown on the web browser button is also stored in the EXIF.
Downloaded videos are stored in the SD card [[Extdata]], from the decrypted [[SpotPass]] content payload, adding an additional header to them. Country info is presumably stored in this metadata, region-lock is handled by the BOSS module via the programID in the [[SpotPass#Payload Content Header|payload header]].
While the SpotPass payload uses little-endian, the extra header added to the Extdata is stored in big-endian.
{| class="wikitable"
{| class="wikitable"
|-
|-
|-
|-
| 0x0
| 0x0
| 4
| 0x4
| Unknown, value is 0x18
| Unknown, value is 0x18
|-
|-
|-
|-
| 0x18
| 0x18
| 8
| 0x8
| TitleID of Nintendo Video
| TitleID of Nintendo Video
|-
|-
| 0x28
| 0x28
| 0x4
| 0x4
| Total filesize?
| File size
|-
| 0x2C
| 0x4
| ?
|-
|-
| 0x2c
| 0x30
| 0x2c
| 0x4
| Unknown, some countries' videos has two extra words added here?
| Release date (integer, YYYYmmddhh)
|-
|-
| 0x58
| 0x34
|
| SpotPass payload
|}
== File format ==
The SpotPass content downloaded for Nintendo Video uses the [[SpotPass]] content container format, see the SpotPass page for info on the container format. At the end of the video file is a JPEG, which contains the video thumbnail, and various advertising metadata (interactive links) including the URL associated with the video. The text shown on the web browser button is also stored in the interactive links.
Region info is stored in the decrypted SpotPass crypto layer, see above SD section.
The following entries use little-endian.
=== Header ===
{| class="wikitable"
|-
! Offset
! Length
! Notes
|-
| 0x0
| 0x4
| Start address of header? (0x0)
|-
| 0x4
| 0x4
| End address of header
|-
| 0x8
| 0x4
| Start address of metadata and video
|-
| 0xC
| 0x4
| End address of metadata and video
|-
| 0x10
| 0x4
| Video thumbnail length
|-
| 0x14
| 0x4
| Unknown (padding?)
|-
| 0x18
|
| [[#Interactive links header|Interactive links header]]
|-
|
|
| [[#Metadata|Metadata]]
|}
=== Metadata ===
{| class="wikitable"
|-
! Offset
! Length
! Notes
|-
| 0x0
| 0x4
| Metadata length (0x248)
|-
| 0x4
| 0x20
| 0x20
| ASCII Video ID? M<shortvidtitle>someid
| Video ID (M<shortvidtitle>video ID)
|-
| 0x24
| 0x8
| [[#Timestamp|Release date]]
|-
|-
| 0x68
| 0x2C
| 0x20
| 0x8
| ?
| [[#Timestamp|Expire date]]
|-
|-
| 0x88
| 0x34
| 0x78
| 0x78
| UTF-16 video title
| UTF-16 video title
|-
|-
| 0x100
| 0xAC
| 0xc
| 0x8
| ?
| ?
|-
|-
| 0x10c
| 0xB4
| 0x4
| Video length
|-
| 0xB8
| 0x190
| 0x190
| UTF-16 video description
| UTF-16 video description
|-
|-
| 0x29c
| 0x248
| 0x20
| 0x20 * number of links
| Another ASCII video ID? I<shortvidtitle>someid
| Interactive link IDs (I<shortvidtitle>video ID)
|-
|-
| 0x2bc
|
| Video size
| Video size
| Mobiclip .moflex video data (first word here is little-endian magic number 0xabaa324c)
| Mobiclip .moflex video data (first word here is little-endian magic number 0xABAA324C)
|-
|
| Thumbnail size
| Video thumbnail
|-
|
| Interactive links data size
| [[#Interactive links data|Interactive links data]]
|}
=== Timestamp ===
The release and expire date are stored using a custom timestamp, where each value (year, month, day...) is stored as unique bytes.
{| class="wikitable"
|-
! Offset
! Length
! Notes
|-
| 0x0
| 0x2
| Year
|-
| 0x2
| 0x1
| Month
|-
| 0x3
| 0x1
| Day
|-
| 0x4
| 0x1
| Hours
|-
| 0x5
| 0x1
| Minutes
|-
| 0x6
| 0x1
| Seconds
|-
| 0x7
| 0x1
| Padding?
|}
|}
== File format ==
=== Interactive links ===
Interactive links are structures that store the advertising and thumbnail data that is displayed to the user during the video playback.
==== Interactive links header ====
{| class="wikitable"
|-
! Offset
! Length
! Notes
|-
| 0x0
| 0x4
| Number of interactive links
|-
| 0x4
| 0x4
| Address of interactive link data
|-
| 0x8
|
| Address of additional interactive links data
|}
==== Interactive links data ====
Interactive links store a thumbnail image as a JPEG image.
{| class="wikitable"
|-
! Offset
! Length
! Notes
|-
| 0x0
| 0x4
| Metadata length (0x16C)
|-
| 0x4
| 0x30
| Interactive link ID (I<shortvidtitle>video ID)
|-
| 0x34
| 0x8
| Unknown
|-
| 0x3C
| 0x100
| URL address of link. For eShop link, use (tiger://<TitleID>)
|-
| 0x13C
| 0x4
| Button link color (RGBA)
|-
| 0x140
| 0x28
| UTF-16 button link text
|-
| 0x168
| 0x4
| Thumbnail length
|-
|
| Thumbnail size
| Thumbnail image
|}
== Server spoofing ==
== Server spoofing ==
# ???
# ???
# PROFIT!
# PROFIT!
This can be done with any DNS server and HTTP server, as long as you spoof everything correctly. It is possible on Windows. I have not tried Mac OS X.
Unfortunately, this currently has little use since Nintendo shut the services down. However, they can still be spoofed if you have everything still on your 3DS. Spoofing your own videos could be possible, but you can already watch videos with the web browser and something like Universal Media Server.
== External links ==
== External links ==
* [http://www.youtube.com/watch?v=Tl8QYofL1tg A video showing Nintendo Video server being spoofed]
* [http://www.youtube.com/watch?v=Tl8QYofL1tg A video showing Nintendo Video server being spoofed]