Summary
Swank streaming titles are encoded to support Adaptive Bitrate Streaming in order to be as network friendly as possible. Each title is encoded at 5 different bit rates.
The bitrate streamed to the client device depends upon both device and network characteristics. These characteristics include screen resolution, CPU availability, graphics processor, network bandwidth and speed available. As the network becomes more congested, the client device player will automatically request lower resolution playback (down to 800) to avoid buffering. If the bandwidth is insufficient to support the lowest bitrate, then the title will buffer.
Table of Contents
Encode Specifications
What bitrates are included in an adaptive bitrate (ABR) stream?
The standard bitrates for HD (720p) content are 3000, 2000, 1500, 800 and 400 Kbps. The standard bitrates for SD (480p) content are 1500, 800, and 400 Kbps. Streaming Server content comes packaged with multiple streams in a single file. The bitrate that is streamed is dynamically adjusted to optimize performance based on network conditions and end-user device capabilities.
| File Structure | MPEG-DASH Modular DRM | |
| Video Encode: | H.264 MP4 | |
| Audio | AAC-LC | |
| Bit Rates | For content with an HD master | For content with an SD master |
| 3000 Kb/sec, @ 720p | 1500 Kb/sec @480p | |
| 2000 Kb/sec, @ 720p | 800 Kb/sec @ 360p | |
| 1500 Kb/sec @480p | 400 Kb/sec @240p | |
| 800 Kb/sec @ 360p | ||
| 400 Kb/sec @240p | ||
| For content encoded prior to 6/1/2018 | 3000 Kb/sec @ 720p | 1500 Kb/sec @ 480p |
| 2000 Kb/sec @ 720p | 800 Kb/sec @ 480p | |
| 1500 Kb/sec @480p | ||
| 800 Kb/sec @ 480p | ||
| Closed Captions | EIA-608/EIA-708 | EIA-608/EIA-708 |
How large are the content files?
Content files vary in size based primarily on the quality of the content and the duration of the content. A typical Hollywood feature film is about 5 Gb for high-definition (HD) and about 2.5 Gb for standard definition (SD). An in-depth breakdown of what this would look like is provided below.
|
BitRate Layer
(Kb/sec)
|
MB / min
for encode
|
Size for a
120-minute title (GB)
|
|---|---|---|
| 3000 | 22.5 | 2.7 |
| 2000 | 15 | 1.8 |
| 1500 | 11.25 | 1.35 |
| .8 (800 kb/s) | 6 | .72 |
| .4 (400 kb/s) | 3 | .36 |
To Calculate a package size, add all of the MB/min for each bit rate and multiply by number of minutes for the title. For a package containing all the default bitrates the total size would be estimated like so:
| MB per minute | 22.5 + 15 + 11.25 + 6 + 3 = 57.75 |
| 100 Minute Title | 100 X 57.75 = 5.78 GB |
| 120 Minute Title | 120 X 57.75 = 6.93 GB |
Content Delivery
There are three ways to receive content for your On-Premise Streaming Server; Network Delivery Directly to the server, USB Hard Drive Delivery, or Network Download via Aspera. Click on the following link for additional details: On-Premise Streaming - Content Delivery
Content Protection
Swank streaming content is safeguarded through the Swank DRM platform, which provides comprehensive Digital Rights Management (DRM) to ensure secure and controlled access to licensed media. Content is secured during delivery through the use of the Aspera high speed protocol which is a studio approved technology for secure transfers of content. Additional details can be found at the link below:
Content Issues
Troubleshooting steps for common content playback issues can be found here: On-Premise Streaming - Troubleshooting Video Playback Errors
If you are experiencing issues with a specific title, please contact Swank Digital Support with the specifics of what you are experiencing. Please include timeframes if applicable. We will pass this on to our Content Team and they will review the issue being reported. If a confirmed issue is found, a new encode will be created and made available.
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