Agora RTC Objective-C API Reference Refactor

### - s -

- sample_rate : AudioParameters
- sample_rate_hz : IScreenCaptureSource::AudioCaptureConfig
- sample_rate_hz_ : AudioPcmFrame
- sampleRate : AudioSessionConfiguration , AudioRecordingConfiguration
- sampleRateHz : EncodedAudioFrameInfo , RtmpStreamingAudioConfiguration
- samples_per_channel_ : AudioPcmFrame
- samplesOut : AudioPcmDataInfo
- samplesPerChannel : IAudioFrameObserverBase::AudioFrame , AudioPcmDataInfo , EncodedAudioFrameInfo
- samplesPerSec : IAudioFrameObserverBase::AudioFrame , AudioSinkWants
- screenRect : ScreenCaptureConfiguration
- sendEvenIfEmpty : EncodedAudioFrameAdvancedSettings
- sendTs : AudioEncodedFrameInfo
- sent_audio_frames : ILocalAudioTrack::LocalAudioTrackStats
- sentBitrate : LocalAudioStats , LocalVideoStats
- sentFrameRate : LocalVideoStats
- sentSampleRate : LocalAudioStats
- seqid : ImagePayloadData
- serverConfig : ContentInspectConfig
- serverDomain : LogUploadServerInfo
- serverHttps : LogUploadServerInfo
- serverPath : LogUploadServerInfo
- serverPort : LogUploadServerInfo
- serviceObserver : AgoraServiceConfiguration
- setupMode : VideoCanvas
- shared_context : TextureInfo
- sharedContext : VideoFrame
- sharpnessLevel : BeautyOptions
- size : AlphaChannel , ImagePayloadData , IMetadataObserver::Metadata , IPacketObserver::Packet , PaddedRawPixelBuffer , RawPixelBuffer
- skinProtectLevel : ColorEnhanceOptions
- smoothnessLevel : BeautyOptions , IVideoBeautyFilter::BeautyOptions
- source : VirtualBackgroundSource
- source_id : ILocalAudioTrack::LocalAudioTrackStats
- sourceType : TranscodingVideoStream , VideoCanvas , VideoTrackInfo
- spectrumData : UserAudioSpectrumInfo
- speech : EncodedAudioFrameAdvancedSettings
- srcInfo : ChannelMediaRelayConfiguration
- ssrc_major_stream : LocalVideoTrackStats
- ssrc_minor_stream : LocalVideoTrackStats
- start2JoinChannel : VideoRenderingTracingInfo
- startPos : MediaSource
- state : LastmileProbeResult , RtmpConnectionInfo , TConnectionInfo
- stopMicrophoneRecording : LeaveChannelOptions
- storage_ : OptionalBase< T >
- storagePath : MediaRecorderConfiguration
- stream_type : DownlinkNetworkInfo::PeerDownlinkInfo
- streamCount : LocalTranscoderConfiguration
- streamIndex : PlayerStreamInfo
- streamType : PlayerStreamInfo , MediaRecorderConfiguration , EncodedVideoFrameInfo , VideoTrackInfo
- strengthLevel : ColorEnhanceOptions
- stride : ExternalVideoFrame , PaddedRawPixelBuffer
- swDecodingLevel : CodecCapLevels
- syncWithAudio : DataStreamConfig
- syncWithMedia : DataChannelConfig
- syncWithPrimaryCamera : LocalTranscoderConfiguration