TVideoInputBuffer Class Reference

class TVideoInputBuffer

A buffer for compressed video data, contains one coded data unit. Video buffers are used for writing video data to the API.

Constructor & Destructor Documentation

TVideoInputBuffer()

IMPORT_CTVideoInputBuffer()

Default constructor. Zeroes all members (including iData which will point to garbage until manually set to point to the real video buffer memory data area by the user).

Member Enumerations Documentation

Enum TVideoBufferOptions

Enumerators

ESequenceNumber = 0x00000001

The sequence number field is valid.

EDecodingTimestamp = 0x00000002

The decoding timestamp field is valid

EPresentationTimestamp = 0x00000004

The presentation timestamp field is valid.

EContentProtected = 0x00000008

Content protected pictures cannot be displayed on unprotected external displays such as TV-out.

Member Data Documentation

TPtr8 iData

TPtr8 iData

Pointer to the video data.

TTimeIntervalMicroSeconds iDecodingTimestamp

TTimeIntervalMicroSeconds iDecodingTimestamp

Data unit decoding timestamp. Valid if EDecodingTimestamp is set in the options.

TBool iError

TBool iError

True if the data unit is known to contain erroneous data.

TDblQueLink iLink

TDblQueLink iLink

A queue link used internally by the MSL API. The field must not be modified while the buffer is in the MSL API, but can be used by the client before the buffer has been written and after the buffer has been returned.

TUint32 iOptions

TUint32 iOptions

Data unit options. The value is a bitfield combined from values from TVideoBufferOptions. TVideoBufferOptions

TBool iPreRoll

TBool iPreRoll

True if the data is part of a pre-roll period and may not be drawn. The decoder may skip display-related operations, but must still decode normally since pre-roll may not end in a key frame.

TTimeIntervalMicroSeconds iPresentationTimestamp

TTimeIntervalMicroSeconds iPresentationTimestamp

Data unit presentation timestamp. Valid if EPresentationTimestamp is set in the options. If the input bitstream does not contain timestamp information, this field should be valid, otherwise pictures cannot be displayed at the correct time. If the input bitstream contains timestamp information (such as the TR syntax element of H.263 bitstreams) and valid iPresentationTimestamp is provided, the value of iPresentationTimestamp is used in playback.

TUint iSequenceNumber

TUint iSequenceNumber

Data unit sequence number. Valid if ESequenceNumber is set in the options. If present, the sequence number is incremented once per coded data unit, a gap in the numbers indicates missing data.

TAny * iUser

TAny *iUser

A pointer for free-form user data. The pointer is set by the module that created the buffer, and is usually used for memory management purposes.