Platform Specific - Windows

Properties

Property	Function
Video API	Select the video API to use. Media Foundation is the default. DirectShow is a legacy API but can be useful for loading many file formats when a codec pack is installed (eg LAV Filters). WinRT is the new Windows API and has better support for adaptive streaming media, but doesn't support many other features (eg Unity audio)
Media Foundation API Options
Hardware Decoding	Enable hardware decoding
Use Low Latency	Enable low latency mode (not recommended as it degrades playback performance)
Use Stereo Detection	Disable for extra performance if stereo packed videos are not required or the stereo packing mode is manually specified
Use Text Tracks	Disable if text track support is not required as this can improve loading time. Enabled by default.
Frame Selection	Experimental feature to allow prebuffering of frames and then logic to decide which frame to display, allowing for smoother playback and easier syncing of multiple videos.
Frame Selection Options
Pause After Preroll Complete	Whether to pause playback automatically once prerolling has completed. Disabled by default.
Hap / NotchLC Options
Use Hap/NotchLC	Disable for extra performance if Hap/NotchLC are not required
Use Custom MOV Parser	Enabled our custom MOV parser to be used, which is useful for Hap and NotchLC codecs, as a Microsoft parser is not able to open very high bit-rate MOV files.
Parallel Frame Count	Maximum number of threads to use for parallel frame decoding. Less threads for less latency in playback operations (seeking, playing etc), more threads for better performance.
Preroll Frame Count	Amount of frames to decoder before starting playback, less frames for less latency in seeking, more frames for less chance of buffer emptying too quickly.
Use Facebook Audio 360	Disable if Facebook Audio 360 support is not required as this can improve loading time. Enabled by default.
Audio Output	The audio output mode. System Direct (default): Plays the audio directly to the hardware bypassing Unity. Unity: Sends the audio to Unity for playback via the AudioOutput component. Facebook Audio 360: Supports playing MKV files with spatial audio encoded using Facebook Audio 360.
Facebook Audio 360 Options
Channel Mode	The channel layout to use, usually TBE_8_2 or AMBIX_4
WinRT API Options
Start Max Bitrate	Forces adaptive streams to begin at the highest bitrate available
Use Low Live Latency	Use the lowest latency possible when playing a live stream
Custom HTTP Headers	Set multiple custom HTTP headers by specifying the header key and value pair.
Auth Token	The authorisation token to pass to the key server for HLS AES-128 decryption.
Key Override (Base64)	The authorisation key to use for HLS AES-128 decryption. This allows a key to be forced in debugging cases where the key server is offline.
DirectShow API Options
Force Audio Output Device	Specify name of the audio output device to use if using the default device is not desired
Preferred Filters	Force named DirectShow filters to be used as first priority. For example, "LAV Video Decoder" could be specified here to prefer it over the Microsoft decoders. Use "GDCL-MPEG4" to force internal MP4 demuxer which can be needed using OpenMediaFromBuffer() as some codec packs (eg StarCodec64) cause problems opening MP4 files into a buffer.