Coded bitstream unit structure. More...

#include <libavcodec/cbs.h>

Data Fields
CodedBitstreamUnitType	type
	Codec-specific type of this unit. More...

uint8_t *	data
	Pointer to the directly-parsable bitstream form of this unit. More...

size_t	data_size
	The number of bytes in the bitstream (including any padding bits in the final byte). More...

size_t	data_bit_padding
	The number of bits which should be ignored in the final byte. More...

AVBufferRef *	data_ref
	If data is reference counted, a reference to the buffer containing data. More...

void *	content
	Pointer to the decomposed form of this unit. More...

AVBufferRef *	content_ref
	If content is reference counted, a reference to the buffer containing content. More...

Detailed Description

Coded bitstream unit structure.

A bitstream unit the smallest element of a bitstream which is meaningful on its own. For example, an H.264 NAL unit.

See the codec-specific header for the meaning of this for any particular codec.

Definition at line 63 of file cbs.h.

Field Documentation

◆ type

CodedBitstreamUnitType CodedBitstreamUnit::type

◆ data

uint8_t* CodedBitstreamUnit::data

Pointer to the directly-parsable bitstream form of this unit.

May be NULL if the unit currently only exists in decomposed form.

Definition at line 74 of file cbs.h.

Referenced by cbs_h2645_assemble_fragment(), cbs_h2645_replace_ps(), cbs_h2645_write_nal_unit(), cbs_h265_read_nal_unit(), cbs_mpeg2_assemble_fragment(), cbs_mpeg2_read_unit(), cbs_mpeg2_write_unit(), cbs_unit_uninit(), ff_cbs_alloc_unit_data(), ff_cbs_insert_unit_data(), and ff_cbs_write_fragment_data().

◆ data_size

size_t CodedBitstreamUnit::data_size

The number of bytes in the bitstream (including any padding bits in the final byte).

Definition at line 79 of file cbs.h.

Referenced by cbs_h2645_assemble_fragment(), cbs_h2645_replace_ps(), cbs_h2645_write_nal_unit(), cbs_h265_read_nal_unit(), cbs_mpeg2_assemble_fragment(), cbs_mpeg2_read_unit(), cbs_mpeg2_write_unit(), cbs_unit_uninit(), ff_cbs_alloc_unit_data(), and ff_cbs_insert_unit_data().

◆ data_bit_padding

size_t CodedBitstreamUnit::data_bit_padding

The number of bits which should be ignored in the final byte.

This supports non-byte-aligned bitstreams.

Definition at line 85 of file cbs.h.

Referenced by cbs_h2645_assemble_fragment(), cbs_h2645_write_nal_unit(), cbs_mpeg2_write_unit(), and cbs_unit_uninit().

◆ data_ref

AVBufferRef* CodedBitstreamUnit::data_ref

If data is reference counted, a reference to the buffer containing data.

Null if data is not reference counted.

Definition at line 90 of file cbs.h.

Referenced by cbs_unit_uninit(), ff_cbs_alloc_unit_data(), ff_cbs_insert_unit_data(), and ff_cbs_write_fragment_data().

◆ content

void* CodedBitstreamUnit::content

Pointer to the decomposed form of this unit.

The type of this structure depends on both the codec and the type of this unit. May be NULL if the unit only exists in bitstream form.

Definition at line 99 of file cbs.h.

Referenced by cbs_h2645_replace_ps(), cbs_h264_write_nal_unit(), cbs_h265_read_nal_unit(), cbs_h265_write_nal_unit(), cbs_mpeg2_read_unit(), cbs_mpeg2_write_slice(), cbs_read_fragment_content(), cbs_unit_uninit(), ff_cbs_alloc_unit_content(), ff_cbs_h264_add_sei_message(), ff_cbs_h264_delete_sei_message(), ff_cbs_insert_unit_content(), ff_cbs_write_fragment_data(), h264_metadata_filter(), h264_metadata_init(), h264_redundant_pps_filter(), h264_redundant_pps_init(), h265_metadata_filter(), h265_metadata_init(), and mpeg2_metadata_update_fragment().

◆ content_ref

AVBufferRef* CodedBitstreamUnit::content_ref

If content is reference counted, a reference to the buffer containing content.

Null if content is not reference counted.

Definition at line 104 of file cbs.h.

Referenced by cbs_read_fragment_content(), cbs_unit_uninit(), ff_cbs_alloc_unit_content(), and ff_cbs_insert_unit_content().

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

libavcodec/cbs.h

Data Fields