VAEncPictureParameterBufferMPEG2 Struct Reference

Picture parameter for MPEG-2 encoding. More...

#include <va_enc_mpeg2.h>

Public Attributes
VASurfaceID	forward_reference_picture
	Forward reference picture.
VASurfaceID	backward_reference_picture
	Backward reference picture.
VASurfaceID	reconstructed_picture
	Reconstructed(decoded) picture.
VABufferID	coded_buf
	Output encoded bitstream.
uint8_t	last_picture
	Flag to indicate the picture is the last one or not.
VAEncPictureType	picture_type
	Picture type.
uint32_t	temporal_reference
	Same as the element in picture_header()
uint32_t	vbv_delay
	Same as the element in picture_header()
uint8_t	f_code [2][2]
	Same as the element in Picture coding extension.
uint32_t	va_reserved [VA_PADDING_LOW]
	Reserved bytes for future use, must be zero.

Detailed Description

Picture parameter for MPEG-2 encoding.

This structure holds information for picture_header() and picture_coding_extension()

If packed picture headers mode is used, i.e. if the encoding pipeline was configured with the VA_ENC_PACKED_HEADER_PICTURE flag, then the driver expects two more buffers to be provided to the same vaRenderPicture() as this buffer:

• a VAEncPackedHeaderParameterBuffer with type set to VAEncPackedHeaderType::VAEncPackedHeaderPicture ;
• a #VAEncPackedHeaderDataBuffer which holds the actual packed header data.

Member Data Documentation

coded_buf

VABufferID VAEncPictureParameterBufferMPEG2::coded_buf

Output encoded bitstream.

coded_buf has type VAEncCodedBufferType. It should be large enough to hold the compressed NAL slice and possibly SPS and PPS NAL units.

last_picture

uint8_t VAEncPictureParameterBufferMPEG2::last_picture

Flag to indicate the picture is the last one or not.

This fields holds 0 if the picture to be encoded is not the last one in the stream. Otherwise, it is MPEG2_LAST_PICTURE_EOSTREAM.

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The documentation for this struct was generated from the following file:

• va_enc_mpeg2.h