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Specifies the slice control mode. Valid values are 0, 1, and 2.
Data type
ULONG (VT_UI4)
Property GUID
CODECAPI_AVEncSliceControlMode
Property value
Slice control mode values:
| Value | Meaning |
|---|---|
|
Setting this value to 0 indicates that the CODECAPI_AVEncSliceControlSize property will specify the slice size in units of macroblocks per slice. |
|
Setting this value to 1 indicates that the CODECAPI_AVEncSliceControlSize property will specify the slice size in units of bits per slice. |
|
Setting this value to 2 indicates that the CODECAPI_AVEncSliceControlSize property will specify the slice size in units of macroblock rows per slice. |
The encoder returns the values that it supports.
Remarks
H.264/AVC encoders:
It is recommended that the encoder supports GetValue, SetValue, and GetParameterRange.
If SetValue is not called for CODECAPI_AVEncSliceControlMode, GetValue for CODECAPI_AVEncSliceControlMode can return VFW_E_CODECAPI_NO_CURRENT_VALUE. GetDefaultValue may return VFW_E_CODECAPI_NO_DEFAULT for CODECAPI_AVEncSliceControlMode.
Recommended default value is 2 (size in MB row per slice).
This is a static API, which means the application won t change this while the encoder is running.
Examples
if (pCodecAPI->IsSupported(&CODECAPI_AVEncSliceControlMode) == S_OK) {
VARIANT var;
var.vt = VT_UI4;
var.ulVal =ulSliceMode;
pCodecAPI->SetValue(&CODECAPI_AVEncSliceControlMode, &var);
}
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 8.1 [desktop apps | UWP apps] |
| Minimum supported server |
Windows Server 2012 R2 [desktop apps | UWP apps] |
| Header |
|