# CORE 1080p Video Upload Specs

September 14, 2023

**_Note:_** _These are the recommended specifications for uploading 1080p video into CORE._

_Video not matching these specs may take longer to be playable or may have difficulty processing._

# Processing Times

Times depend on the video codec and length of the source file. If it was a h264 with aac audio it would be playable in a couple of minutes. If it transcodes from source to a 1920x1080 proxy before the file can be played, it would generally process at a rate of 4x real time. So a 2-hour movie would take 25-30 mins to create a playable proxy.

# Proxy Playback Information

HD Proxy playback will be at a rate for 5 Mb/sec.

|     |     |
| --- | --- |
| **Parameter** | **Spec** |
| Video Resolution | HD 1920x1080<br>SD 1280x720 |
| Data Rate | 5000 kb/s or 5Mb/s |
| Frame Rate | Same as source |
|  | Progressive Streaming Fast Start |
| Encoding Profile | High |
| Pixel Aspect Ratio | Square |
| Color Space ITU | Rec-709 (sRGB LUT) |
| Compression Type | H.264 |
| Container Format | Quicktime (.mov) |
| Encoding | Faster encode (single pass) |
| Audio Format | AAC |
| Audio Bit Rate | 192 kbit/s |

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**Video Resolution** - Optimized Video Resolution setting for CORE at 1920 x 1080.

**Data Rate** - Optimized Data Rate at 5000 kb/s or 5 Mb/s. If the Data Rate is higher than the spec mentioned will result in longer delays for the video to be playable on CORE.

**Rate -** Frames Rates will be the same as source. It is preferred to be 24 frames per second.

**Encoding Profile -** High - The High profile supports high definition files.

**Pixel Aspect Ratio** - (often abbreviated **PAR**) is a mathematical [ratio](https://en.wikipedia.org/wiki/Ratio) that describes how the width of a [pixel](https://en.wikipedia.org/wiki/Pixel) in a [digital image](https://en.wikipedia.org/wiki/Digital_image) compares to the height of that pixel. CORE requires the square pixels type.

**Color Space ITU -** Color spaces are mathematical models describing the way colours can be represented. CORE specs recommend Rec. 709 or sRGB LUT.

**Compression Type** - CORE uses the H.264 compression type. H.264 is the well-known [video compression](https://www.haivision.com/resources/streaming-video-definitions/compression/) standard for [high-definition digital video](https://www.haivision.com/resources/streaming-video-definitions/hd-high-definition/) (Also known as MPEG-4 Part 10 or Advanced Video Coding (MPEG-4 AVC).

**Container Format (Wrapper) -** CORE’s recommended container format is .MOV (quicktime). A container format is a type of [file format](https://www.webopedia.com/TERM/F/file_format.html) that contains various types of data compressed by standardized [codecs](https://www.webopedia.com/TERM/C/codec.html).

**Encoding Audio Format -** CORE’s recommended Encoding Audio Format is AAC. An encoding Audio format is a [content representation format](https://en.wikipedia.org/wiki/Content_format) for storage or transmission of [digital audio](https://en.wikipedia.org/wiki/Digital_audio).

**Audio Bit Rate -** CORE’s recommended Audio Bit Rate is 192kbit/s or below.

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