# FFmpegKit iOS / macOS / tvOS API: Globals

### - m -

- main_ffmpeg_return_code : fftools_ffmpeg.c, fftools_ffmpeg.h
- main_ffprobe_return_code : fftools_ffprobe.c
- max_error_rate : fftools_ffmpeg.h, fftools_ffmpeg_opt.c
- MediaInformationJsonParserKeyChapters : MediaInformationJsonParser.m
- MediaInformationJsonParserKeyStreams : MediaInformationJsonParser.m
- mediaInformationSessionCompleteCallback : FFmpegKitConfig.m
- MediaKeyBitRate : MediaInformation.h, MediaInformation.m
- MediaKeyDuration : MediaInformation.h, MediaInformation.m
- MediaKeyFilename : MediaInformation.h, MediaInformation.m
- MediaKeyFormat : MediaInformation.h, MediaInformation.m
- MediaKeyFormatLong : MediaInformation.h, MediaInformation.m
- MediaKeyFormatProperties : MediaInformation.m
- MediaKeyMediaProperties : MediaInformation.h
- MediaKeySize : MediaInformation.h, MediaInformation.m
- MediaKeyStartTime : MediaInformation.h, MediaInformation.m
- MediaKeyTags : MediaInformation.h, MediaInformation.m