Media Library

Overview

The LSVT Media Library is a tool that will automatically upload and encode your video files for you. Once you put a video in your Media Library, you can use, and reuse it as many times as you like.

Note: The video you upload is commonly referred to as your “source” video.

When you add a new file to the Media Library, you can do this by going right to your Media Library in the Super User Dashboard, or you can also do it right inline, while you are adding or editing a Course.

Each file you add will need a “File Name”. This is for your internal reference only and are not displayed to your user on the front end. This is simply to make it easy for you to find and use these files at a future time.

For “Video Files”, we will put a “Duration Time” along with an “Added on” date and time so you may refer back to the file if needed.

For “Image Files” and Document Files” this will only include the “Added On” date feature.

These “Features” are added just in case there are some mistakes with adding a double later on or need to know when the file was added to the Media Library.

Furthermore, there are features for after the file has been uploaded. These features are: Preview, Copy, Edit, Delete.

  • Preview will allow you to look at the file without having to download it.
  • Copy will allow you to copy the link of the source video and be placed where ever need be.
    (Copying the link of video files will allow you to copy 3 different links. These links pertain to the quality of the video you want copied. The 3 different links are: Streaming, Download High, Download Low. “Streaming” will adjust and buffer to the connection speed of your internet and the quality will adjust when need be. “Download High” will play the video in the highest quality of the source video that was uploaded but may take longer to buffer. “Download Low” will play the video in a low quality form but will buffer faster due to the lack of definition of the video.)
  • Edit will allow you to change the name and add a description of the file.
  • Delete will allow you to delete the file all together. It will prompt a window that will ask you if you are sure to delete this file selected.

Encoding Settings

When encoding videos, you will want to have as high quality video as you can to start with – the ole’ Garbage In = Garbage Out analogy. Below are some answers to commonly asked questions about this process to best assist you in making your video look the best it can.

Pretty much anything that is “really” a video. Click Here to jump down this page and take a detailed look at acceptable video formats.


We playback videos at a 16:9 ratio, ideally your source video should be 1920 (width) by 1080 (height). However any size of 16:9 will scale in fine. If your video is not a 16:9 ratio, we will help you and add a “pad” around it to fill up the space to that ratio. We don’t goof up your video by stretching it to an odd size that looks bad.

Take a look at our recommended guidelines for providing the best quality.


That depends how fast your Internet upload speed is to upload it, and then also how long (in duration) your video is to encode it.

The basic process is:

  1. We will upload your video, and you will see a progress bar on this process. A five minute video typically takes less than 30 seconds to upload.
  2. We will encode your video to all of the different target formats to be compatible across desktop and mobile formats. A five minute video typically takes about three minutes to encode.

 

Note: Do not close the pop up window until the file has completed uploading

It isn’t any “type” of video player – it is our “Custom VT Player” which uses some industry standard elements, and then added a lot of customizations that are specific to our System.


Tip
When you are adding files to the Media Library, a bar will pop up next to the file that was put inside, that bar will fill up green and will begin “Processing”. Once the file starts to process then you may close the window, it will notify you through email when each file has been uploaded. When they are done uploading and encoding they will save back to the Media Library on their own for convenience.

Note: You may only upload up to 100 files at one time.

 

Encoding Output Specifics

Videos are encoding using a different keyframe per second based on the duration of the video.

Keyframe intervals interact with video players in two ways:

  1. Size of timescale header load, the more keyframes the bigger the header file size and more waiting for the player to buffer before the video begins to play.
  2. Trickplay jumping ahead and back in the playbar, the player locks to the nearest keyframe so more frames = more accuracy.

 

For optimum results we encode using the following settings:

5 minutes or less:

Segment Duration 3 seconds
Framerate 30
Keyframe 90
Still Image 2 seconds into the first segment
90 / 30 = 3 second keyframe

6 to 40 minutes:

Segment Duration 5 seconds
Framerate 30
Keyframe 150
Still Image 4 seconds into the first segment
150 / 30 = 5 second keyframe

41 minutes or more:

Segment Duration 9 seconds
Framerate 30
Keyframe 270
Still Image 8 seconds into the first segment
270 / 30 = 9 second keyframe

Other Settings per Quality Stream:

Size: 416×234

Video Codec libx264
Audio Codec dolby_heaac
Bitrate 200k
Audio Bitrate 64k
Audio Sample Rate 44100

Size: 480×270

Video Codec libx264
Audio Codec dolby_heaac
Bitrate 400k
Audio Bitrate< 64k
Audio Sample Rate 44100

Size: 640×360

Video Codec libx264
Audio Codec dolby_heaac
Bitrate 600k
Audio Bitrate 64k
Audio Sample Rate 44100

Size: 640×360

Video Codec libx264
Audio Codec dolby_heaac
Bitrate 1200k
Audio Bitrate 96k
Audio Sample Rate 44100

Size: 960×540

Video Codec libx264
Audio Codec dolby_heaac
Bitrate 3500k
Audio Bitrate 96k
Audio Sample Rate 44100

Size: 1280×720

Video Codec libx264
Audio Codec dolby_heaac
Bitrate 5000k
>Audio Bitrate 128k
Audio Sample Rate 44100

Size: 1280×720

Video Codec libx264
Audio Codec dolby_heaac
Bitrate 6500k
Audio Bitrate 128k
Audio Sample Rate 44100

Size: 1920×1080
*This stream is only included if the source video height is equal to or greater than 1080

Video Codec libx264
Audio Codec dolby_heaac
Bitrate 8500k
Audio Bitrate 128k
Audio Sample Rate 44100

MP4 – Low & MP4 – High

Videos are encoded using different settings based on the source video:

If the Video height is:

Less than equal to 240

Size 0x240
Bitrate Low 350k
Bitrate High 800k
Audio Bitrate Low 64k
Audio Bitrate High 64k
Audio Sample Rate 22050
Video Codec libx264
Audio Codec dolby_heaac

Between 241 and 360:

Size 0x360
Bitrate Low 800k
Bitrate High 1500k
Audio Bitrate Low 64k
Audio Bitrate High 128k
Audio Sample Rate 44100
Video Codec libx264
Audio Codec dolby_heaac

Between 361 and 480:

Size 0x480
Bitrate Low 1000k
Bitrate High 2500k
Audio Bitrate Low 64k
Audio Bitrate High 128k
Audio Sample Rate 44100
Video Codec libx264
Audio Codec dolby_heaac

Between 481 and 576:

Size 0x576
Bitrate Low 2500k
Bitrate High 3500k
Audio Bitrate Low 80k
Audio Bitrate High 128k
Audio Sample Rate 44100
Video Codec libx264
Audio Codec dolby_heaac

Over 576:

Size 0x720
Bitrate Low 3600k
Bitrate High 5800k
Audio Bitrate Low 128k
Audio Bitrate High 128k
Audio Sample Rate 44100
Video Codec libx264
Audio Codec dolby_heaac

 

What format of videos and files can you upload?

The Media Library can accept any format of video and file type that you upload, that is indeed a video (a Powerpoint file is not a video, no matter how many “cool” slide transitions you know how to make – nor is an Animated GIF… sorry). The files that seem like a video file but are not, will be distributed to either the “Images” tab or the “Documents” tab.