FFmpeg
Data Fields
CodedBitstreamUnit Struct Reference

Coded bitstream unit structure. More...

#include <cbs.h>

Data Fields

  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...
 
  A reference to the buffer containing data. More...
 
void *  content
  Pointer to the decomposed form of this unit. More...
 
void *  content_ref
  If content is reference counted, a RefStruct reference backing 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 70 of file cbs.h.

Field Documentation

type

CodedBitstreamUnitType CodedBitstreamUnit::type

Codec-specific type of this unit.

Definition at line 74 of file cbs.h.

Referenced by av1_frame_merge_filter(), av1_frame_split_filter(), av1_metadata_update_fragment(), av1_parser_parse(), av1_receive_frame_internal(), cbs_av1_read_unit(), cbs_find_unit_type_desc(), cbs_h2645_assemble_fragment(), cbs_h264_discarded_nal_unit(), cbs_h264_read_nal_unit(), cbs_h264_write_nal_unit(), cbs_h265_discarded_nal_unit(), cbs_h265_read_nal_unit(), cbs_h265_write_nal_unit(), cbs_h266_read_nal_unit(), cbs_h266_write_nal_unit(), cbs_insert_unit_data(), cbs_jpeg_assemble_fragment(), cbs_jpeg_read_unit(), cbs_jpeg_write_segment(), cbs_jpeg_write_unit(), cbs_mpeg2_read_unit(), cbs_mpeg2_write_header(), cbs_mpeg2_write_unit(), cbs_read_fragment_content(), cbs_sei_get_message_list(), cbs_sei_get_unit(), decode_nal_unit(), decode_nal_units(), dovi_rpu_update_fragment_av1(), dovi_rpu_update_fragment_hevc(), ff_cbs_insert_unit_content(), ff_cbs_write_fragment_data(), filter_units_filter(), get_pict_type(), h264_filter(), h264_metadata_insert_aud(), h264_metadata_update_fragment(), h264_redundant_pps_update_fragment(), h265_metadata_guess_level(), h265_metadata_update_fragment(), h266_metadata_update_fragment(), mpeg2_metadata_update_fragment(), and parse_feedback_units().

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 81 of file cbs.h.

Referenced by av1_frame_split_filter(), av1_receive_frame_internal(), cbs_alloc_unit_data(), cbs_av1_assemble_fragment(), cbs_av1_read_unit(), cbs_av1_ref_tile_data(), cbs_h2645_assemble_fragment(), cbs_h264_read_nal_unit(), cbs_h265_read_nal_unit(), cbs_h266_read_nal_unit(), cbs_insert_unit_data(), cbs_jpeg_assemble_fragment(), cbs_jpeg_read_unit(), cbs_mpeg2_assemble_fragment(), cbs_mpeg2_read_unit(), cbs_read_fragment_content(), cbs_unit_uninit(), cbs_vp8_read_unit(), cbs_vp9_assemble_fragment(), cbs_vp9_read_unit(), cbs_write_unit_data(), dovi_rpu_update_fragment_hevc(), 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 86 of file cbs.h.

Referenced by av1_frame_split_filter(), av1_receive_frame_internal(), cbs_alloc_unit_data(), cbs_av1_assemble_fragment(), cbs_av1_read_unit(), cbs_av1_ref_tile_data(), cbs_h2645_assemble_fragment(), cbs_h264_read_nal_unit(), cbs_h265_read_nal_unit(), cbs_h266_read_nal_unit(), cbs_insert_unit_data(), cbs_jpeg_assemble_fragment(), cbs_jpeg_read_unit(), cbs_mpeg2_assemble_fragment(), cbs_mpeg2_read_unit(), cbs_unit_uninit(), cbs_vp8_read_unit(), cbs_vp9_assemble_fragment(), cbs_vp9_read_unit(), cbs_write_unit_data(), and dovi_rpu_update_fragment_hevc().

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 92 of file cbs.h.

Referenced by cbs_h2645_assemble_fragment(), cbs_unit_uninit(), cbs_write_unit_data(), and dovi_rpu_update_fragment_hevc().

data_ref

AVBufferRef* CodedBitstreamUnit::data_ref

A reference to the buffer containing data.

Must be set if data is not NULL.

Definition at line 98 of file cbs.h.

Referenced by av1_receive_frame_internal(), cbs_alloc_unit_data(), cbs_av1_read_unit(), cbs_av1_ref_tile_data(), cbs_h264_read_nal_unit(), cbs_h265_read_nal_unit(), cbs_h266_read_nal_unit(), cbs_insert_unit_data(), cbs_jpeg_read_unit(), cbs_mpeg2_read_unit(), cbs_read_fragment_content(), cbs_unit_uninit(), cbs_vp8_read_unit(), cbs_vp9_read_unit(), dovi_rpu_update_fragment_hevc(), 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 107 of file cbs.h.

Referenced by av1_frame_merge_filter(), av1_frame_split_filter(), av1_metadata_update_fragment(), av1_parser_parse(), av1_receive_frame_internal(), cbs_av1_read_unit(), cbs_av1_write_obu(), cbs_clone_noncomplex_unit_content(), cbs_clone_unit_content(), cbs_h2645_replace_ps(), cbs_h264_discarded_nal_unit(), cbs_h264_read_nal_unit(), cbs_h264_write_nal_unit(), cbs_h265_discarded_nal_unit(), cbs_h265_read_nal_unit(), cbs_h265_write_nal_unit(), cbs_h266_read_nal_unit(), cbs_h266_write_nal_unit(), cbs_jpeg_read_unit(), cbs_jpeg_write_scan(), cbs_jpeg_write_segment(), cbs_mpeg2_read_unit(), cbs_mpeg2_write_slice(), cbs_read_fragment_content(), cbs_sei_get_message_list(), cbs_sei_get_unit(), cbs_unit_uninit(), cbs_vp8_read_unit(), cbs_vp9_read_unit(), cbs_vp9_write_unit(), dovi_rpu_update_fragment_av1(), ff_cbs_alloc_unit_content(), ff_cbs_insert_unit_content(), ff_cbs_make_unit_refcounted(), ff_cbs_make_unit_writable(), ff_cbs_write_fragment_data(), get_pict_type(), get_pu_info(), h264_filter(), h264_metadata_insert_aud(), h264_metadata_update_fragment(), h264_redundant_pps_fixup_pps(), h264_redundant_pps_update_fragment(), h265_metadata_guess_level(), h265_metadata_update_fragment(), h266_metadata_update_fragment(), mpeg2_metadata_update_fragment(), parse_feedback_units(), and vp9_metadata_update_fragment().

content_ref

void* CodedBitstreamUnit::content_ref

If content is reference counted, a RefStruct reference backing content.

NULL if content is not reference counted.

Definition at line 112 of file cbs.h.

Referenced by av1_frame_merge_filter(), av1_receive_frame_internal(), cbs_av1_read_unit(), cbs_av1_write_obu(), cbs_clone_unit_content(), cbs_h2645_replace_ps(), cbs_h266_replace_ph(), cbs_read_fragment_content(), cbs_unit_uninit(), ep_init_cabac_decoder(), ff_cbs_alloc_unit_content(), ff_cbs_insert_unit_content(), ff_cbs_make_unit_refcounted(), ff_cbs_make_unit_writable(), ff_vvc_decode_aps(), ff_vvc_decode_sh(), slice_init_entry_points(), and slice_start().


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

Generated on Fri Aug 22 2025 14:00:20 for FFmpeg by   doxygen 1.8.17

AltStyle によって変換されたページ (->オリジナル) /