Microsoft-Windows-MFH264Enc

EventTitleChannelSampleRule
1MFH264Enc_EncodeSessionStartWINDOWS_MFH264Enc_CHANNELNN
2MFH264Enc_EncodeSessionStopWINDOWS_MFH264Enc_CHANNELNN
3MFH264Enc_TrackSampleStartWINDOWS_MFH264Enc_CHANNELNN
4MFH264Enc_TrackSampleStopWINDOWS_MFH264Enc_CHANNELNN
5MFH264Enc_WorkItemStartWINDOWS_MFH264Enc_CHANNELNN
6MFH264Enc_WorkItemStopWINDOWS_MFH264Enc_CHANNELNN
7MFH264Enc_RateControlWINDOWS_MFH264Enc_CHANNELNN
8MFH264Enc_RateControl8WINDOWS_MFH264Enc_CHANNELNN

Event ID 1: MFH264Enc_EncodeSessionStart

#
Channel
WINDOWS_MFH264Enc_CHANNEL
Task
MFH264Enc_EncodeSession
Opcode
Start

Fields #

NameDescription
EncoderInstance Pointer
Complexity Int32
RateCtrlMode Int32
ContentType Int32
BufferSize Int32
AverageBitRate Int32
PeakBitRate Int32
EntropyMode Int32
MultithreadEncodingMode Int32
NumberOfWorkerThreads Int32

Event ID 2: MFH264Enc_EncodeSessionStop

#
Channel
WINDOWS_MFH264Enc_CHANNEL
Task
MFH264Enc_EncodeSession
Opcode
Stop

Fields #

NameDescription
EncoderInstance Pointer

Event ID 3: MFH264Enc_TrackSampleStart

#
Channel
WINDOWS_MFH264Enc_CHANNEL
Task
MFH264Enc_TrackSample
Opcode
Start

Fields #

NameDescription
EncoderInstance Pointer
SampleTime Int64

Event ID 4: MFH264Enc_TrackSampleStop

#
Channel
WINDOWS_MFH264Enc_CHANNEL
Task
MFH264Enc_TrackSample
Opcode
Stop

Fields #

NameDescription
EncoderInstance Pointer
SampleTime Int64

Event ID 5: MFH264Enc_WorkItemStart

#
Channel
WINDOWS_MFH264Enc_CHANNEL
Task
MFH264Enc_WorkItem
Opcode
Start

Fields #

NameDescription
EncoderInstance Pointer
TimeStamp Int64
Type Int32

Event ID 6: MFH264Enc_WorkItemStop

#
Channel
WINDOWS_MFH264Enc_CHANNEL
Task
MFH264Enc_WorkItem
Opcode
Stop

Fields #

NameDescription
EncoderInstance Pointer
TimeStamp Int64
Type Int32

Event ID 7: MFH264Enc_RateControl

#
Channel
WINDOWS_MFH264Enc_CHANNEL
Task
MFH264Enc_RateControl

Fields #

NameDescription
EncoderInstance Pointer
TimeStamp Int64
GOPNumber Int32
FrameNumber Int32
FrameRate Double

Event ID 8: MFH264Enc_RateControl8

#
Channel
WINDOWS_MFH264Enc_CHANNEL
Task
MFH264Enc_RateControl

Fields #

NameDescription
EncoderInstance Pointer
TimeStamp Int64
GOPNumber Int32
FrameNumber Int32
BitRate Int32

Provenance

ETW provider GUID 2a49de31-8a5b-4d3a-a904-7fc7409ae90d

Defined in MFH264Enc.dll, which carries the event manifest.

  • WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.4294, 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