What is VP9 and Does Dacast Support It?

Posted by Dacast Team on October 1, 2020

VP9 is a proprietary codec that was developed by On2Technologies in May 2003. It is also called the TrueMotion video codec. VP9 is a lossy video compression format and is often used by JavaFX, Adobe Flash and Flash Video Files.

Dacast does NOT recommend using VP9.

If you plan to do All Device (HTML5) live streaming it is recommended to use the H.264 video codec instead.

If the H.264 codec isnt an option for you, Dacast also supports the x264 codec.

It is possible to live stream with VP9, but it has known playback issues in certain digital environments. Use it at your own risk.

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What is an Encoder?

The VP9 codec has to do with your live stream encoder.

Encoding is a process used to convert the RAW video files captured by a camera into digital files suitable for live streaming over the internet.

This process uses either a hardware or software encoder.

Required Live Encoder Settings

The following live encoder settings are required for live streaming with Dacast, regardless of your selected resolution and bitrate:

VIDEO CODEC	H.264 (x264 may work)
FRAME RATE	25 or 30
KEYFRAME INTERVAL	2 secs (or 2x frame rate)
SCANNING	Progressive
ENCODING BITRATE	Constant (CBR)
AUDIO CODEC	AAC
AUDIO BITRATE	128 kbps
AUDIO CHANNELS	2 (Stereo)
AUDIO SAMPLE RATE	48 kHz (48,000 Hz)

If you have any questions about video encoding or need help with this Dacast feature, feel free to contact us directly.

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Additional Resources:

Category: Live Streaming

Jose Guevara

Jose is a part of the Dacast Customer Onboarding team and started working with the company in 2016. He has vast experience in customer service/engagement and live streaming support.