Admin Guide : Media Settings : Transcoding : Transcoding Preset Default Settings
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Transcoding Preset Default Settings
By default, six transcoding presets have been defined for Vbrick Rev when your system is installed. These six presets have been carefully tested and authenticated and are the recommended settings to use to transcode a stored file from one video encoding format to another. They are seen in Table 1 below.
For example, when adding a stored MP4 video, the file can automatically be transcoded to H.264 or HLS format. The presets defined below are used to configure the bitrate, frame rate, aspect ratio, and so forth of the transcoded output.
Admins can also specify which user actions or “rules” will prompt transcoding to occur such as when users add or record a video. If set, when a user performs the action specified, a list of the transcoding presets selected will appear for the user to select.
Table 1: Transcoding Preset Descriptions and Encoding Output Types
Preset Name
Description
Encoding Output
Standard Definition
Distribution Method: Supports a broad range of Internet connections. Target Displays: Works best for embedding on Web pages.
H.264
High Definition 720p
Distribution Method: Best for higher Internet Speeds or Corporate Intranet. Target Displays: Tablets, TVs, and full screen PC viewing.
H.264
High Definition 1080p
Distribution Method: Corporate Intranet. Also useful for local archival and playback. Target Displays: TV, full screen PCs.
H.264
360 Video 1080p
Distribution method: WiFi, 4G+ and Intranet. Delivery: Windows 7 IE11 and other browsers that cannot play HLS
H.264
Adaptive Streaming
Distribution Method: WiFi or 4G+ Delivery Method: iOS and Android smartphones and tablets.
HLS
Adaptive Streaming for 360 Video
Distribution method: WiFi, 4G+ and Intranet. Target Displays: full screen PCs
HLS
Each preset has additional attributes such as an average bit rate versus a peak bitrate setting defined for video and audio.
Table 2: Transcoding Preset Attributes
Preset Name
Video Bitrate
Avg. Bitrate
Peak Bitrate
Frame Width
Frame Height
Audio Codec
Audio Bitrate
Audio Sample Rate
Standard Definition
 
800
1100
640
 
AAC-LC
96
48
High Definition 720p
 
2100
3000
1280
 
AAC-LC
128
48
High Definition 1080p
 
4000
5400
1920
 
AAC-LC
160
48
360 Video 1080p
 
2000
2200
 
1080
AAC-LC
160
48
Adaptive Streaming
Setting 1
Setting 2
2962
1296
 
 
1280
640
 
AAC-LC
128
44.1
Adaptive Streaming for 360 Video
Setting 1
Setting 2
Setting 3
Setting 4
8000
5000
2000
1200
 
 
2160
1440
1080
720
 
AAC-LC
160
48
 
Note: Each transcoded instance of the video is presented to the user on the Video Settings page. Further, the user may choose which instance to play in the Video Player. See: View all Transcoded Video Instances.
Keep in mind, the user will be presented with the following playback options to select when more than one instance of the video is available:
●Auto where auto = HLS or the lowest quality stream available.
●Each available video quality where the transcoding output type = H.264.
 
Warning: Safari browsers will not play MP4 videos from Rev when the 1080p original transcoding option is selected. To use this playback option, the user should clear browser cache and then make sure that the "Always Allow"option is selected for Cookies and Website data under Privacy data.