IMFWriter

Operates the encoding process

Methods

ReceiverFramePut

Puts frame to the encoding process

Syntax

void ReceiverFramePut( 
   MFFrame _pFrame,
   long _rtMaxWait,
   string _bsHints
)

Parameters

_pFrame - frame for encoding
_rtMaxWait - max wait time for encoding (by default use -1)
_bsHints - additional parameters.

WriterClose

Closes the writer object and the encoding process

Syntax

void WriterClose( 
   int _bAsync
)

Parameters

_bAsync  - 1 to close the process asynchronously, 0 - to close the process in sync.

WriterGet

Returns target path of encoding and full encoding's configuration

Syntax

void WriterGet( 
   out string _pbsTargetPath,
   out string _pbsOptionsList
)

Parameters

_pbsTargetPath - the actual target path for encoding,
_pbsOptionsList - the current encoding configuration.

WriterOptionGet

Gets currently set configuration's option (format, video or audio codec)

Syntax

void WriterOptionGet( 
   eMFWriterOption _eType,
   out string _pbsName,
   out IMFProps _ppProps
)

Parameters

_eType - type of option (format, video or audio codec)
_pbsName - option's name
_ppProps - properties of the option (internal attributes)

WriterOptionGetByIndex

Gets a writer's option by its index.

Syntax

void WriterOptionGetByIndex( 
   eMFWriterOption _eType,
   int _nIndex,
   out string _pbsShortName,
   out string _pbsLongName
)

Parameters

_eType - option's type (format, video or audio codec)
_nIndex - option's index
_pbsShortName - short name (ID) of option (for example, 'mp4')
_pbsLongName - full name of the option (for example, 'MPEG-4 part 2 Video')

WriterOptionGetCount

Gets a number of available options (number of available formats, audio or video codecs)

Syntax

void WriterOptionGetCount( 
   eMFWriterOption _eType,
   out int _pnCount
)

Parameters

_eType - option's type(format, audio or video codec)
_pnCount - number of available options

WriterOptionSet

Sets writer's option by its name

Syntax

void WriterOptionSet( 
   eMFWriterOption _eType,
   string _bsName,
   out IMFProps _ppProps
)

Parameters

_eType - option's type (format, video or audio codec)
_bsName - option's name (full or short name)
_ppProps - properties of the option (attributes for configuration)

WriterOptionSetByIndex

Sets writer's option by its index

Syntax

void WriterOptionSetByIndex( 
   eMFWriterOption _eType,
   int _nIndex,
   out IMFProps _ppProps
)

Parameters

_eType - option's type (format, video or audio codec)
_nIndex - option's index
_ppProps - properties of the option (attributes for configuration)

WriterSet

Sets target path and configuration for encoding. Also turns on writer's object to be ready to receive frames.

Syntax

void WriterSet( 
   string _bsTargetPath,
   int _bResetOption,
   string _bsOptionsList
)

Parameters

_bsTargetPath - target path for encoding
_bResetOption - indicates whether previous configuration will be reset
_bsOptionsList - configuration for encoding