File Upload Accept Jpg Capital Case Sensitive

This section outlines the guidelines for submitting media files to PBS LearningMedia via the CMS tool.  Please attach to these guidelines to ensure the content submission procedure goes smoothly. Media files that tin can be included in your resources include:

Key: = supported = not supported

Acceptable audio file format:  MP3.

The following certificate formats are supported for import:

• Because documents demand to be downloaded for use, they will not be converted and will maintain their original format.
• If you do not want your document to be editable and you would like it to retain the layout and formatting yous've applied, submit information technology in the print-gear up PDF format PDF-A (https://en.wikipedia.org/wiki/PDF/A).
• If your certificate should be editable, you can:
  • use the Save As selection on your computer to salvage it as an ODT (https://en.wikipedia.org/wiki/OpenDocument) earlier yous upload it, or
  • upload information technology as a .doc file which is compatible with more systems than the .docx
• Viewing documents will by and large be done with Microsoft Open Viewerhttps://view.officeapps.alive.com/op/view.aspx
  • Documents with the post-obit extensions will be viewed using the standard browser behavior: .pdf, .html, .notebook, .htm, .swf, .txt, .exercise, .pub, .3ds, .epub, .psd. Whatsoever other invalid format is included here.
  • After uploading a new document, the user must check that it is correctly displayed in the viewer or uncheck this pick in the CMS otherwise.
  • Word and PowerPoint documents bigger than than 10 MB plus Excel documents bigger than 5 MB volition be opened using the standard browser behavior.
    

File types Non supported: EPS, AI, TIF, BMP

Acceptable paradigm formats
Type of Prototype	Supported File Type
Logo	PNG, JPG
Poster Image	JPG
Collection images	JPG
Support Materials images	JPG

Type of Image	Requirements
Poster Images (and thumbnails)	LearningMedia requires a poster image for all assets. If a poster image is non added to an asset, the poster prototype from the media file displays. File format: JPG Poster images should be 1920 pixels wide by 1080 pixels high and take a xvi:ix aspect ratio.  Minimum prototype size accepted is 700 pixels broad by 394 pixels high. The poster image is resized automatically for lists (thumbnail size) and resource pages (poster image size, i.east. the epitome y'all meet before you lot striking the play push button). For videos, a representative frame should exist called. For documents and sound, we would like to accept a representative image, or icon. See more about poster images
Logos	Please attach your logo to an e-mail and send to PBSLM.MC@pbs.org. We strongly recommend including at least one logo on each resource (typically the Contributor logo). Please add logos in the Attributions field at the Content Projection level. All logos should exist submitted with a minimum width of 250 pixels. File format: PNG (must be transparent) .AI and .EPS files can exist submitted to PBS if you are unable to provide .PNG files, yet, these file types crave reformatting past our design section and may take more fourth dimension to procedure. All brand logos display in color; all other logos display in grayscale. You can include an unlimited number of Brand, Contributor, Funder, and Producer logos. Meet more about logos

Image sizes

All sizes are displayed as width x top.

Prototype	File format	Minimum size	Preferred size	Aspect ratio	Boosted Notes	Example (click to enlarge)
Resource Poster Image	JPG	700 x 394	1920 x 1080	16:9	LearningMedia requires a poster image for all assets. If a poster image is not added to an asset, the poster image from the media file displays. For videos, a representative frame should be called For documents and sound, we would similar to have a representative image, or icon
Thumbnail on Search Results	JPG	116 x 65	1920 x 1080	xvi:9	The poster image is resized automatically to create the thumbnail image
Drove Feature Image	JPG	500 10 500	500 10 500	one:ane
Collection Banner	JPG	1170 x 150	1170 x 150	---
Collection Thumbnail	JPG	600 x 338	1920 10 1080	16:9
Back up Material Poster Image	JPG	450 x 364	450 x 364	---

Pointer avails open in a pop-up of 1045x810 and LTIs open up in a pop-upwards of 1200x756. From the console, click the Open in new tab checkbox to have your asset open in a new browser tab. Acquire more

HTML Guidelines

• HTML may be written according to the HTML 4.01 Transitional, XHTML i.0, or HTML5 doctype.
• All HTML files must declare a valid doctype. (HTML volition be validated against W3C guidelines. It is suggested that all files are validated before submitting to PBS.  In that location are complimentary utilities available to achieve this.)
• HTML must be Section 508 compliant.
• Interactive developers should follow best practices of web development for HTML, CSS, JavaScript and Flash/Action script including the employ of not-blocking JavaScript loads and supporting the widest array of browser technologies possible.
• When targeting a version of Flash, it is suggested that interactive developers target the lowest version number that supports the applied science needed to produce the interactive.

Wink IS NOT RECOMMENDED. Schools and institutions do non always run the about cut-edge version of the Flash Thespian and .swf files do non piece of work on many tablets.

Target browsers

The following is a list of target browsers:

• Google Chrome
• Net Explorer 11.0
• Firefox 52+, Safari 9+
• Microsoft Edge.

Interactive Package Construction

• Interactives that contain multiple files should exist delivered in ZIP archives containing all required files and directory structures needed to feel the object.
• At the root of the Null archive should exist a manifest file called manifest.txt. The manifest should incorporate the post-obit information, and goose egg else:
• Title: Title of interactive
• Creator: Creator of interactive Creator
• Email: Email of interactive Creator
• Clarification: Curt clarification of interactive
• Date Created: Date interactive was created
• The ZIP archive should also contain an index.html file at the root of the annal
• Only the alphabetize.html and the manifest.txt files should be located in the root of the annal. All other files should exist contained in a subdirectory called content.
• Within the content directory, interactive creators may use whatsoever directory construction they choose, every bit long the guidelines outlined below are followed:
  • Reference files and directories with the correct alphabetic character case. Filesystems are case sensitive. Capital letters may be used, but it is imperative for developers to realize that they must reference files and directories with the correct alphabetic character example. If the HTML, JavaScript, CSS or Actionscript of your interactive references "filename.jpg" and the bodily file is called "fileName.jpg" then your interactive may appear broken to the cease user. This would cause your interactive to be rejected by PBS staff. (This is by and large merely a problem for developers working on case insensitive platforms such as Windows.) To avoid complications with filename references, it is recommended to avoid any uppercase letters in filenames.
  • Do not include spaces or special characters in file or directory names. No spaces or special characters are allowed in file or directory names. The only special characters that are permitted are: nuance ( - ), underscore (_), and flow (.). So this-file_name.txt is valid, but this file~name.txt is not valid.
  • All linkage in any interactive should be self-contained and relative to the pathing within the nix archives. For example, the index.html file may embed the object content/swf/main.swf as a valid path and file. However, /content/swf/chief.swf will non be a valid path or file on the production system.

• All interactives will be loaded via the index.html file in the root directory. This file should bootstrap the interactive to run for the user.

The structure of the content directory may take on a much wider multifariousness of appearances. Figure 1 demonstrates a sample content directory.

Figure 1

content/

jQuery/

jQuery_min.js

img/

image1.jpg

image2.jpg

css/

styles.css

base of operations.css

swf/

main.swf

menu.swf

video/

video1.mp4

video2.mp4

UI/UX Guidelines

It is imperative to realize that the interactives will be experienced through many different platforms and devices. In improver to designing the interactive for the appropriate audience, it is helpful to keep in mind some tips to make the interactive accessible for a diversity of platforms and interfaces.

TIPS
Variable display resolutions	The interactives may be viewed on a wide variety of displays with varying resolutions then, where possible, use vector graphics. Vector graphics are especially friendly for developers when using Flash, although features such as SVG and the canvas tag enable HTML-based interactives to leverage scalable graphics. Information technology is recommended that wherever possible, HTML-based interactives apply a fluid layout in guild to make the best use of available display resolution.
Avoid hover events	A hover event is any event that occurs upon hovering the mouse cursor over an object on the screen. Both JavaScript and Flash allow for this type of event.  These types of events should exist avoided in social club to better support touch-based interfaces. If an onHover event does not affect the actual functioning of a interactive, information technology is allowed. However, if an onHover event prevents users on a touch-based device from experiencing the core functions of a interactive, then those onHover events will require alteration.
Provide user -friendly interface	Although mouse pointers and other interface devices provide a high level of accuracy, information technology is recommended that interactive developers try not to position linked objects too closely together. Give some room to linked elements of your interactive, and allow hot zones to be equally large equally possible. This will make the interactive more accessible to differently abled users, will ease interaction with the interactive on touch-based devices, and will expand the audience to a wider age range (younger children tend not to be as precise with the mouse as adults and older children).
HTML links	When featuring HTML links as assets, provide the URL that takes the user closest to the media. PBS LearningMedia intentionally tries to avoid cataloging entire websites since we aim to feature discrete resources, so please avert URLs to dwelling pages, peculiarly if the websites are big.

Videos should non contain web links, hash tags or embedded captions.

360 °  Videos are as well supported but not automatically detected. After uploading this content, the 360 °  flag must be enabled so the player displays the content correctly.

	Standard Hard disk drive Mezzanine Spec	HD 1080p Mezzanine Spec
File Format	MPEG-four (.mp4) *.mov files are adequate, nevertheless, .mp4 is the preferred format.	MPEG-4 (.mp4) *.mov files are acceptable, however, .mp4 is the preferred format.
Total Stream BitRate	5 Mbps	6.5Mbps
Video Stream
Codec	AVC (H.264)	AVC (H.264)
Frame Size	16/9: 1280 x 720	16/ix: 1920 10 1080
Frame Rate	30 fps	30 fps
Video Standard	NTSC	NTSC
Scan Type	Progressive	Progressive
Video Stream BitRate	4808 Kbps	6308 Kbps
Video Stream BitRate Mode	VBR	VBR

Video audio

Mezzanine is the preferred format, however, web delivery is acceptable if mezzanine is non available.

Video files must have sound tracks.

Sound Stream	Mezzanine**	Web Delivery/COVE Spec
Codec	AAC	AAC
Sound Stream BitRate	192 Kbps	48 Kbps
Audio Stream BitRate Mode	CBR	CBR
Number of Audio Channels	2 (Stereo)	1 (Mono)
Audio Channel's Positions	L, R	C
Sampling Rate	48 KHz	44.1 KHz
Bit Depth	16 bits	16 bits

** Preferred format.

• When you use 1 of the caption formats that are supported for ingest, your explanation file is automatically converted and stored in the CMS every bit VTT.
• Caption positioning will be stripped if non supported.
• Embedded captions are non supported.

** Preferred format.

How tin a viewer tell if my video has captions?

When a user mouses over your video, a variety of icons announced at the bottom of the screen. If the bar contains a CC icon (Figure 1.ane), that means your video contains closed captions. If the CC icon does not appear, closed captioning is non bachelor for your video. When activated, captions display at the bottom of the video.  Learn more almost closed captioning

Figure ane

FCC Online Captioning Regulations

Full-length and chapterized video programming shown with airtight captions on TV must at present accept captions when distributed online. Captions of online video programming must be at least the same quality as the captions shown on TV. The FCC requires the copyright holder of the content to notify the distributor as to whether captions are needed for a particular program and to provide the digital captioning file if needed. In addition, digital closed captioning will be required to be nowadays and accurate for clips, excerpts and segments equally of January 1, 2016. The following exemption applies every bit of January i, 2016 for all clips, segments, and excerpts that are lifted from a broadcast television programme:

• Captions are non required for online clips from near live or live broadcasts, until July 2017.
• Captions are not required for clips and segments broadcast ONLYbefore Jan 1, 2016, still, if something is aired as a rerun, captions are required.

Full text of the online closed captioning regulations can be institute here: FCC regulations

Acceptable caption formats
File Type	Supported for ingest
ASCII

What is ASCII?

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Source: https://docs.pbs.org/display/DLM/Media+Format+Guidelines

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