Overview

Describes statistics for a single published video layer.

In a simulcast configuration, each entry corresponds to one independent video encoding (for example, low-, medium-, and high-resolution streams sent in parallel). For SVC (Scalable Video Coding), the publisher typically sends a single video encoding, with scalability (temporal, spatial, or both) internally encoded and described via the scalabilityMode property.

width

The width of the video frame, in pixels.

@property (readonly) int32_t width

Declared In

OTNetworkStatsKit.h

height

The height of the video frame, in pixels.

@property (readonly) int32_t height

Declared In

OTNetworkStatsKit.h

encodedFrameRate

The encoded video frame rate (in frames per second).

@property (readonly) double encodedFrameRate

Declared In

OTNetworkStatsKit.h

bitrate

The bitrate of this video layer, in bits per second.

@property (readonly) int64_t bitrate

Declared In

OTNetworkStatsKit.h

totalBitrate

The total bitrate, including RTP headers, padding, and payload, in bits per second.

@property (readonly) int64_t totalBitrate

Declared In

OTNetworkStatsKit.h

scalabilityMode

The scalability mode string (for example, “L1T1”, “L3T3”) describing the spatial and/or temporal scalability of this video layer. This property can be null or an empty string when it is not available.\

@property (nullable, readonly) NSString *scalabilityMode

Declared In

OTNetworkStatsKit.h

qualityLimitationReason

The reason for any quality limitation experienced by this video layer.

@property (readonly) OTPublisherVideoEventReason qualityLimitationReason

Declared In

OTNetworkStatsKit.h

codec

The codec currently used for this video layer.

@property (nullable, readonly) NSString *codec

Declared In

OTNetworkStatsKit.h