Encoding

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The encoding specification applies to SSAI Live and VoD content, unless there are specific notifications to be considered.

• Codec and profile (resolution, profile, fps, bitrate, etc.) should be consistent for each content in a given channel.

• The GOP size, also known as keyframe interval or keyframe rate should be at 1.92 or 2.88 sec. to ensure the best compatibility and aligned audio and video segments.

• For MPEG-DASH the container format must be ISOBMFF fMP4 (content-Type: video/iso.segment) with multiple video segments.

• For HLS the container format could be .ts (content-type: binary/octet-stream) or .fMP4 (content-type: video/mp4)

We recommend the following linked Bitrate Ladder for Live and Video-On-Demand. This will ensure a smooth streaming experience and optimal quality on all devices and connection types.

Video

Setting	Value
Profile	Main
BufferWindow	00:00:05
BFrames	0
ReferenceFrames	3
AdaptiveBFrame	false
Type	H264Layer
FrameRate	25000/1000

​SD-Renditions

Bitrate (static)	Resolution	Level
320	320x180	3.1
600	480x280	3.1
960	640x380	3.1
1850	960x540	3.1

HD-Renditions

Bitrate (static)	Resolution	Level
320	320x180	3.1
600	480x280	3.1
960	640x380	3.1
1850	960x540	3.1
2940	1280x720	3.1
4230	1920x1080	4.1

Audio

Setting	Value
Profile	AACLC
Channels	2
SamplingRate	48000
Bitrate	128
Type	AACAudio