# FFmpegKit iOS / macOS / tvOS API: Data Fields

Here is a list of all struct and union fields with links to the structures/unions they belong to:

### - i -

- i : SpecifierOpt, unit_value
- i64 : SpecifierOpt
- id : HWAccel, ReadInterval, section
- ignoreSignal: : FFmpegKitConfig
- incrementAndGet : AtomicLong
- indent_level : JSONContext, XMLContext
- index : FilterGraph, OutputStream
- init : HWAccel, Writer
- init: : FFmpegSession, FFprobeSession, MediaInformationSession, ReturnCode, StreamInformation
- init:logLevel:data: : CallbackData
- init:sessionId:level: : Log
- init:videoFrameNumber:fps:quality:size:time:bitrate:speed: : CallbackData
- init:videoFrameNumber:videoFps:videoQuality:size:time:bitrate:speed: : Statistics
- init:withExecuteCallback: : FFmpegSession, FFprobeSession, MediaInformationSession
- init:withExecuteCallback:withLogCallback: : FFprobeSession, MediaInformationSession
- init:withExecuteCallback:withLogCallback:withLogRedirectionStrategy: : AbstractSession, FFprobeSession
- init:withExecuteCallback:withLogCallback:withStatisticsCallback: : FFmpegSession
- init:withExecuteCallback:withLogCallback:withStatisticsCallback:withLogRedirectionStrategy: : FFmpegSession
- init:withStreams: : MediaInformation
- initialize : AbstractSession, ArchDetect, FFmpegKit, FFmpegKitConfig, FFmpegSession, FFprobeKit, FFprobeSession, MediaInformationSession, Packages, InputStream::sub2video
- initialized : OutputStream
- initWithValue: : AtomicLong
- input_ts_offset : InputFile, OptionsContext
- inputs : FilterGraph
- inputs_done : OutputStream
- inter_matrices : OptionsContext
- intra_matrices : OptionsContext
- is_cfr : OutputStream
- isCancel : ReturnCode
- isCancel: : ReturnCode
- isError : ReturnCode
- isFFmpeg : AbstractSession, FFmpegSession, FFprobeSession, <Session>
- isFFprobe : AbstractSession, FFmpegSession, FFprobeSession, <Session>
- isLTSBuild : FFmpegKitConfig
- isSuccess : ReturnCode
- isSuccess: : ReturnCode
- ist : InputFilter
- ist_index : InputFile
- item_sep : CompactContext, JSONContext
- item_sep_str : CompactContext
- item_start_end : JSONContext