Microsoft-Windows-MediaFoundation-MFReadWrite

Event	Title	Channel	Sample	Rule
0	SourceReader_SetCurrentMediaType_Begin	SourceReader	N	N
1	SourceReader_SetCurrentMediaType_End	SourceReader	N	N
2	SourceReader_SetCurrentPosition_Begin	SourceReader	N	N
3	SourceReader_SetCurrentPosition_End	SourceReader	N	N
4	SourceReader_ReadSample_Begin	SourceReader	N	N
5	SourceReader_ReadSample_End	SourceReader	N	N
6	SourceReader_Flush_Begin	SourceReader	N	N
7	SourceReader_Flush_End	SourceReader	N	N
8	SourceReader_RequestSample	SourceReader	N	N
9	SourceReader_MediaSourceEvent	SourceReader	N	N
10	SourceReader_MediaStreamEvent	SourceReader	N	N
11	SourceReader_Error	SourceReader	N	N
12	SourceReader_CapturePluginCreated	SourceReader	N	N
13	SourceReader_TransformChange	SourceReader	N	N
14	SourceReader_StreamError	SourceReader	N	N
15	SourceReader_RequestSample_Begin	SourceReader	N	N
16	SourceReader_RequestSample_End	SourceReader	N	N
100	SinkWriter_SetInputMediaType_Begin	SinkWriter	N	N
101	SinkWriter_SetInputMediaType_End	SinkWriter	N	N
102	SinkWriter_BeginWriting	SinkWriter	N	N
103	SinkWriter_WriteSample	SinkWriter	N	N
104	SinkWriter_StreamTick	SinkWriter	N	N
105	SinkWriter_Marker_Placed	SinkWriter	N	N
106	SinkWriter_Marker_Fired	SinkWriter	N	N
107	SinkWriter_ProcessSample	SinkWriter	N	N
108	SinkWriter_Finalize_Begin	SinkWriter	N	N
109	SinkWriter_Finalize_End	SinkWriter	N	N
110	SinkWriter_MediaSinkEvent	SinkWriter	N	N
111	SinkWriter_StreamSinkEvent	SinkWriter	N	N
112	SinkWriter_Throttle_Begin	SinkWriter	N	N
113	SinkWriter_Throttle_End	SinkWriter	N	N
114	SinkWriter_Error	SinkWriter	N	N
115	SinkWriter_StreamError	SinkWriter	N	N
116	SinkWriter_StateChange	SinkWriter	N	N
117	SinkWriter_EndOfSegment	SinkWriter	N	N
118	SinkWriter_Flush	SinkWriter	N	N
119	SinkWriter_TransformChange	SinkWriter	N	N
200	Transform_ProcessInput	Transform	N	N
201	Transform_ProcessInputError	Transform	N	N
202	Transform_ProcessOutput	Transform	N	N
203	Transform_ProcessOutputError	Transform	N	N
204	Transform_ProcessMessage	Transform	N	N
205	Transform_Event	Transform	N	N
206	Transform_ProcessEvent	Transform	N	N
207	Transform_Created	Transform	N	N
208	Transform_Destroyed	Transform	N	N
209	MFReadWrite_Transform_Process, only valid in 1-in/1-out mode	Transform	N	N
210	MFReadWrite_Transform_Process, only valid in 1-in/1-out mode	Transform	N	N
211	Transform_SetInputType	Transform	N	N

Event ID 0: SourceReader_SetCurrentMediaType_Begin

Channel: SourceReader
Task: SourceReader_SetCurrentMediaType
Opcode: Start

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`MajorType` GUID
`Subtype` GUID

Event ID 1: SourceReader_SetCurrentMediaType_End

Channel: SourceReader
Task: SourceReader_SetCurrentMediaType
Opcode: Stop

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`ErrorCode` UInt32

Event ID 2: SourceReader_SetCurrentPosition_Begin

Channel: SourceReader
Task: SourceReader_SetCurrentPosition
Opcode: Start

Fields #

Name	Description
`Object` Pointer
`TimeFormat` GUID
`VariantType` UInt32
`Position` UInt64

Event ID 3: SourceReader_SetCurrentPosition_End

Channel: SourceReader
Task: SourceReader_SetCurrentPosition
Opcode: Stop

Fields #

Name	Description
`Object` Pointer
`ErrorCode` UInt32

Event ID 4: SourceReader_ReadSample_Begin

Channel: SourceReader
Task: SourceReader_ReadSample
Opcode: Start

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`ControlFlags` UInt32

Event ID 5: SourceReader_ReadSample_End

Channel: SourceReader
Task: SourceReader_ReadSample
Opcode: Stop

Fields #

Name	Description
`Object` Pointer
`ErrorCode` UInt32
`ActualStreamIndex` UInt32
`StreamFlags` UInt32
`Sample` Pointer
`Timestamp` UInt64
`Duration` UInt64
`Size` UInt32
`Discontinuity` Boolean
`CleanPoint` Boolean

Event ID 6: SourceReader_Flush_Begin

Channel: SourceReader
Task: SourceReader_Flush
Opcode: Start

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32

Event ID 7: SourceReader_Flush_End

Channel: SourceReader
Task: SourceReader_Flush
Opcode: Stop

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32

Event ID 8: SourceReader_RequestSample

Channel: SourceReader

Event ID 9: SourceReader_MediaSourceEvent

Channel: SourceReader
Task: SourceReader_MediaSourceEvent

Fields #

Name	Description
`Object` Pointer
`EventType` UInt32
`ErrorCode` UInt32

Event ID 10: SourceReader_MediaStreamEvent

Channel: SourceReader
Task: SourceReader_MediaStreamEvent

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`EventType` UInt32
`ErrorCode` UInt32

Event ID 11: SourceReader_Error

Channel: SourceReader
Task: SourceReader_Error

Fields #

Name	Description
`Object` Pointer
`ErrorCode` UInt32

Event ID 12: SourceReader_CapturePluginCreated

Channel: SourceReader
Task: SourceReader_CapturePluginCreated

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`MFT` Pointer
`CLSID` GUID
`vtable` Pointer

Event ID 13: SourceReader_TransformChange

Channel: SourceReader
Task: SourceReader_TransformChange

Event ID 14: SourceReader_StreamError

Channel: SourceReader
Task: SourceReader_Error

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`ErrorCode` UInt32

Event ID 15: SourceReader_RequestSample_Begin

Channel: SourceReader
Task: SourceReader_RequestSample
Opcode: Start

Fields #

Name	Description
`Object` Pointer
`RequestCounter` UInt64
`StreamIndex` UInt32

Event ID 16: SourceReader_RequestSample_End

Channel: SourceReader
Task: SourceReader_RequestSample
Opcode: Stop

Fields #

Name	Description
`Object` Pointer
`RequestCounter` UInt64
`StreamIndex` UInt32

Event ID 100: SinkWriter_SetInputMediaType_Begin

Channel: SinkWriter
Task: SinkWriter_SetInputMediaType
Opcode: Start

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`MajorType` GUID
`Subtype` GUID

Event ID 101: SinkWriter_SetInputMediaType_End

Channel: SinkWriter
Task: SinkWriter_SetInputMediaType
Opcode: Stop

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`ErrorCode` UInt32

Event ID 102: SinkWriter_BeginWriting

Channel: SinkWriter
Task: SinkWriter_BeginWriting

Fields #

Name	Description
`Object` Pointer

Event ID 103: SinkWriter_WriteSample

Channel: SinkWriter
Task: SinkWriter_WriteSample

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Sample` Pointer
`Timestamp` UInt64
`Duration` UInt64
`Size` UInt32
`Discontinuity` Boolean
`CleanPoint` Boolean

Event ID 104: SinkWriter_StreamTick

Channel: SinkWriter
Task: SinkWriter_StreamTick

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Timestamp` UInt64

Event ID 105: SinkWriter_Marker_Placed

Channel: SinkWriter
Task: SinkWriter_Marker
Opcode: Start

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Context` Pointer

Event ID 106: SinkWriter_Marker_Fired

Channel: SinkWriter
Task: SinkWriter_Marker
Opcode: Stop

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Context` Pointer

Event ID 107: SinkWriter_ProcessSample

Channel: SinkWriter
Task: SinkWriter_ProcessSample

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Sample` Pointer
`Timestamp` UInt64

Event ID 108: SinkWriter_Finalize_Begin

Channel: SinkWriter
Task: SinkWriter_Finalize
Opcode: Start

Fields #

Name	Description
`Object` Pointer

Event ID 109: SinkWriter_Finalize_End

Channel: SinkWriter
Task: SinkWriter_Finalize
Opcode: Stop

Fields #

Name	Description
`Object` Pointer
`ErrorCode` UInt32

Event ID 110: SinkWriter_MediaSinkEvent

Channel: SinkWriter
Task: SinkWriter_MediaSinkEvent

Fields #

Name	Description
`Object` Pointer
`EventType` UInt32
`ErrorCode` UInt32

Event ID 111: SinkWriter_StreamSinkEvent

Channel: SinkWriter
Task: SinkWriter_StreamSinkEvent

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`EventType` UInt32
`ErrorCode` UInt32

Event ID 112: SinkWriter_Throttle_Begin

Channel: SinkWriter
Task: SinkWriter_Throttle
Opcode: Start

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Threshold` UInt32
`ClockTime` UInt64
`Timestamp` UInt64

Event ID 113: SinkWriter_Throttle_End

Channel: SinkWriter
Task: SinkWriter_Throttle
Opcode: Stop

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Delay` UInt32

Event ID 114: SinkWriter_Error

Channel: SinkWriter
Task: SinkWriter_Error

Fields #

Name	Description
`Object` Pointer
`ErrorCode` UInt32

Event ID 115: SinkWriter_StreamError

Channel: SinkWriter
Task: SinkWriter_Error

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`ErrorCode` UInt32

Event ID 116: SinkWriter_StateChange

Channel: SinkWriter
Task: SinkWriter_StateChange

Fields #

Name	Description
`Object` Pointer
`OldState` UInt32
`NewState` UInt32
`ErrorCode` UInt32

Event ID 117: SinkWriter_EndOfSegment

Channel: SinkWriter
Task: SinkWriter_EndOfSegment

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32

Event ID 118: SinkWriter_Flush

Channel: SinkWriter
Task: SinkWriter_Flush

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32

Event ID 119: SinkWriter_TransformChange

Channel: SinkWriter
Task: SinkWriter_TransformChange

Event ID 200: Transform_ProcessInput

Channel: Transform
Task: Transform_ProcessInput

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Transform` Pointer
`Sample` Pointer
`Timestamp` UInt64
`Duration` UInt64
`Size` UInt32
`Discontinuity` Boolean
`CleanPoint` Boolean
`TransformType` UInt32

Event ID 201: Transform_ProcessInputError

Channel: Transform
Task: Transform_ProcessInput

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Transform` Pointer
`ErrorCode` UInt32

Event ID 202: Transform_ProcessOutput

Channel: Transform
Task: Transform_ProcessOutput

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Transform` Pointer
`OutputStreamIndex` UInt32
`Sample` Pointer
`Timestamp` UInt64
`Duration` UInt64
`Size` UInt32
`Discontinuity` Boolean
`CleanPoint` Boolean
`TransformType` UInt32

Event ID 203: Transform_ProcessOutputError

Channel: Transform
Task: Transform_ProcessOutput

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Transform` Pointer
`ErrorCode` UInt32

Event ID 204: Transform_ProcessMessage

Channel: Transform
Task: Transform_ProcessMessage

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Transform` Pointer
`Message` UInt32
`Param` Pointer

Event ID 205: Transform_Event

Channel: Transform
Task: Transform_Event

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Transform` Pointer
`EventType` UInt32
`ErrorCode` UInt32

Event ID 206: Transform_ProcessEvent

Channel: Transform
Task: Transform_ProcessEvent

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Transform` Pointer
`EventType` UInt32

Event ID 207: Transform_Created

Channel: Transform
Task: Transform_Created

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`MFT` Pointer
`CLSID` GUID
`vtable` Pointer

Event ID 208: Transform_Destroyed

Channel: Transform
Task: Transform_Destroyed

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`MFT` Pointer
`CLSID` GUID
`vtable` Pointer

Event ID 209: MFReadWrite_Transform_Process, only valid in 1-in/1-out mode

Channel: Transform
Task: Transform_Process
Opcode: Start

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Transform` Pointer
`Sample` Pointer
`Timestamp` UInt64
`Duration` UInt64
`Size` UInt32
`Discontinuity` Boolean
`CleanPoint` Boolean
`TransformType` UInt32

Event ID 210: MFReadWrite_Transform_Process, only valid in 1-in/1-out mode

Channel: Transform
Task: Transform_Process
Opcode: Stop

Fields #

Name	Description
`Object` Pointer
`StreamIndex` UInt32
`Transform` Pointer
`OutputStreamIndex` UInt32
`Sample` Pointer
`Timestamp` UInt64
`Duration` UInt64
`Size` UInt32
`Discontinuity` Boolean
`CleanPoint` Boolean
`TransformType` UInt32

Event ID 211: Transform_SetInputType

Channel: Transform
Task: Transform_SetInputType

Fields #

Name	Description
`Object` Pointer
`TransformType` UInt32
`MediaType` AnsiString

Provenance

ETW provider GUID 4b7eac67-fc53-448c-a49d-7cc6db524da7

Defined in MFReadWrite.dll, which carries the event manifest.

WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.2849, captured 2026-06-02 — Manifest XML pack, 1.9 MB
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.5074, captured 2026-06-02 — Manifest XML pack, 2.0 MB