#include <libavcodec/avcodec.h>

Data Fields
void *	priv_data

struct AVCodecParser *	parser

int64_t	frame_offset

int64_t	cur_offset

int64_t	next_frame_offset

int	pict_type

int	repeat_pict
	This field is used for proper frame duration computation in lavf. More...

int64_t	pts

int64_t	dts

int64_t	last_pts

int64_t	last_dts

int	fetch_timestamp

int	cur_frame_start_index

int64_t	cur_frame_offset [AV_PARSER_PTS_NB]

int64_t	cur_frame_pts [AV_PARSER_PTS_NB]

int64_t	cur_frame_dts [AV_PARSER_PTS_NB]

int	flags

int64_t	offset
	byte offset from starting packet start More...

int64_t	cur_frame_end [AV_PARSER_PTS_NB]

int	key_frame
	Set by parser to 1 for key frames and 0 for non-key frames. More...

attribute_deprecated int64_t	convergence_duration

int	dts_sync_point
	Synchronization point for start of timestamp generation. More...

int	dts_ref_dts_delta
	Offset of the current timestamp against last timestamp sync point in units of AVCodecContext.time_base. More...

int	pts_dts_delta
	Presentation delay of current frame in units of AVCodecContext.time_base. More...

int64_t	cur_frame_pos [AV_PARSER_PTS_NB]
	Position of the packet in file. More...

int64_t	pos
	Byte position of currently parsed frame in stream. More...

int64_t	last_pos
	Previous frame byte position. More...

int	duration
	Duration of the current frame. More...

enum AVFieldOrder	field_order

enum AVPictureStructure	picture_structure
	Indicate whether a picture is coded as a frame, top field or bottom field. More...

int	output_picture_number
	Picture number incremented in presentation or output order. More...

int	width
	Dimensions of the decoded video intended for presentation. More...

int	height

int	coded_width
	Dimensions of the coded video. More...

int	coded_height

int	format
	The format of the coded data, corresponds to enum AVPixelFormat for video and for enum AVSampleFormat for audio. More...

Detailed Description

Examples:: decode_audio.c, and decode_video.c.

Definition at line 5032 of file avcodec.h.

Field Documentation

◆ priv_data

void* AVCodecParserContext::priv_data

Definition at line 5033 of file avcodec.h.

Referenced by aac_parse_init(), adx_parse(), av_parser_close(), av_parser_init(), av_vorbis_parse_init(), bmp_parse(), cavsvideo_parse(), cook_parse(), dca_parse(), dca_parse_init(), dirac_combine_frame(), dirac_parse(), dirac_parse_close(), dnxhd_parse(), dpx_parse(), dvbsub_parse(), dvbsub_parse_close(), dvbsub_parse_init(), dvd_nav_parse(), dvd_nav_parse_init(), dvdsub_parse(), dvdsub_parse_close(), ff_aac_ac3_parse(), ff_parse_close(), flac_parse(), flac_parse_close(), flac_parse_init(), g729_parse(), gsm_parse(), h261_parse(), h263_parse(), h264_close(), h264_parse(), hevc_find_frame_end(), hevc_parse(), hevc_parse_slice_header(), hevc_parser_close(), init(), jpeg_parse(), latm_find_frame_end(), latm_parse(), mlp_parse(), mpeg4_decode_header(), mpeg4video_parse(), mpeg4video_parse_init(), mpegaudio_parse(), mpegvideo_extract_headers(), mpegvideo_parse(), opus_find_frame_end(), opus_parse(), parse_nal_units(), png_parse(), pnm_parse(), rv34_parse(), sbc_parse(), scan_mmco_reset(), sipr_parse(), tak_parse(), vc1_extract_header(), vc1_parse(), vc1_parse_init(), and xma_parse().

◆ parser

struct AVCodecParser* AVCodecParserContext::parser

Definition at line 5034 of file avcodec.h.

Referenced by av_parser_change(), av_parser_close(), av_parser_init(), av_parser_parse2(), and remove_extradata().

◆ frame_offset

int64_t AVCodecParserContext::frame_offset

Definition at line 5035 of file avcodec.h.

Referenced by av_parser_parse2(), ff_fetch_timestamp(), and parse_packet().

◆ cur_offset

int64_t AVCodecParserContext::cur_offset

Definition at line 5036 of file avcodec.h.

Referenced by av_parser_parse2(), and ff_fetch_timestamp().

◆ next_frame_offset

int64_t AVCodecParserContext::next_frame_offset

Definition at line 5038 of file avcodec.h.

Referenced by av_parser_parse2(), ff_fetch_timestamp(), and flac_read_timestamp().

◆ pict_type

int AVCodecParserContext::pict_type

Definition at line 5040 of file avcodec.h.

Referenced by av_parser_init(), compute_pkt_fields(), dirac_combine_frame(), dpx_parse(), dvd_nav_parse(), hevc_parse_slice_header(), mpeg4_decode_header(), mpegvideo_extract_headers(), mpegvideo_parse(), mpegvideo_parse_init(), parse(), parse_nal_units(), parse_packet(), png_parse(), rv34_parse(), scan_mmco_reset(), and vc1_extract_header().

◆ repeat_pict

int AVCodecParserContext::repeat_pict

This field is used for proper frame duration computation in lavf.

It signals, how much longer the frame duration of the current frame is compared to normal frame duration.

frame_duration = (1 + repeat_pict) * time_base

It is used by codecs like H.264 to display telecined material.

Definition at line 5050 of file avcodec.h.

Referenced by avformat_find_stream_info(), ff_compute_frame_duration(), mpegvideo_extract_headers(), mpegvideo_parse(), parse_nal_units(), process_input_packet(), and vc1_extract_header().

◆ pts

int64_t AVCodecParserContext::pts

Definition at line 5051 of file avcodec.h.

Referenced by av_parser_parse2(), dirac_combine_frame(), dvbsub_parse(), dvd_nav_parse(), ff_fetch_timestamp(), flac_parse(), flac_read_timestamp(), get_best_header(), h264_parse(), mpeg4_decode_header(), parse_packet(), read_frame_internal(), rv34_parse(), and update_initial_timestamps().

◆ dts

int64_t AVCodecParserContext::dts

Definition at line 5052 of file avcodec.h.

Referenced by av_parser_parse2(), dirac_combine_frame(), ff_fetch_timestamp(), ff_rfps_add_frame(), h264_parse(), mpeg4_decode_header(), parse_packet(), select_from_pts_buffer(), and update_initial_timestamps().

◆ last_pts

int64_t AVCodecParserContext::last_pts

Definition at line 5055 of file avcodec.h.

Referenced by av_parser_parse2(), dirac_combine_frame(), and dvbsub_parse().

◆ last_dts

int64_t AVCodecParserContext::last_dts

Definition at line 5056 of file avcodec.h.

Referenced by av_parser_parse2(), av_read_frame(), and dirac_combine_frame().

◆ fetch_timestamp

int AVCodecParserContext::fetch_timestamp

Definition at line 5057 of file avcodec.h.

Referenced by av_parser_init(), av_parser_parse2(), and dvbsub_parse().

◆ cur_frame_start_index

int AVCodecParserContext::cur_frame_start_index

Definition at line 5060 of file avcodec.h.

Referenced by av_parser_parse2(), and dvbsub_parse().

◆ cur_frame_offset

int64_t AVCodecParserContext::cur_frame_offset[AV_PARSER_PTS_NB]

Definition at line 5061 of file avcodec.h.

Referenced by av_parser_parse2(), and ff_fetch_timestamp().

◆ cur_frame_pts

int64_t AVCodecParserContext::cur_frame_pts[AV_PARSER_PTS_NB]

Definition at line 5062 of file avcodec.h.

Referenced by av_parser_parse2(), dvbsub_parse(), and ff_fetch_timestamp().

◆ cur_frame_dts

int64_t AVCodecParserContext::cur_frame_dts[AV_PARSER_PTS_NB]

Definition at line 5063 of file avcodec.h.

Referenced by av_parser_parse2(), and ff_fetch_timestamp().

◆ flags

int AVCodecParserContext::flags

◆ offset

int64_t AVCodecParserContext::offset

byte offset from starting packet start

Definition at line 5072 of file avcodec.h.

Referenced by compute_pkt_fields(), estimate_timings_from_pts(), and ff_fetch_timestamp().

◆ cur_frame_end

int64_t AVCodecParserContext::cur_frame_end[AV_PARSER_PTS_NB]

Definition at line 5073 of file avcodec.h.

Referenced by av_parser_parse2(), and ff_fetch_timestamp().

◆ key_frame

int AVCodecParserContext::key_frame

Set by parser to 1 for key frames and 0 for non-key frames.

It is initialized to -1, so if the parser doesn't set this flag, old-style fallback using AV_PICTURE_TYPE_I picture type as key frames will be used.

Definition at line 5081 of file avcodec.h.

Referenced by av_parser_init(), hevc_parse_slice_header(), parse(), parse_nal_units(), parse_packet(), tak_parse(), and xma_parse().

◆ convergence_duration

attribute_deprecated int64_t AVCodecParserContext::convergence_duration

Deprecated:: unused

Definition at line 5088 of file avcodec.h.

Referenced by av_parser_init(), and compute_pkt_fields().

◆ dts_sync_point

int AVCodecParserContext::dts_sync_point

Synchronization point for start of timestamp generation.

Set to >0 for sync point, 0 for no sync point and <0 for undefined (default).

For example, this corresponds to presence of H.264 buffering period SEI message.

Definition at line 5101 of file avcodec.h.

Referenced by av_parser_init(), and h264_parse().

◆ dts_ref_dts_delta

int AVCodecParserContext::dts_ref_dts_delta

Offset of the current timestamp against last timestamp sync point in units of AVCodecContext.time_base.

Set to INT_MIN when dts_sync_point unused. Otherwise, it must contain a valid timestamp offset.

Note that the timestamp of sync point has usually a nonzero dts_ref_dts_delta, which refers to the previous sync point. Offset of the next frame after timestamp sync point will be usually 1.

For example, this corresponds to H.264 cpb_removal_delay.

Definition at line 5116 of file avcodec.h.

Referenced by av_parser_init(), and h264_parse().

◆ pts_dts_delta

int AVCodecParserContext::pts_dts_delta

Presentation delay of current frame in units of AVCodecContext.time_base.

Set to INT_MIN when dts_sync_point unused. Otherwise, it must contain valid non-negative timestamp delta (presentation time of a frame must not lie in the past).

This delay represents the difference between decoding and presentation time of the frame.

For example, this corresponds to H.264 dpb_output_delay.

Definition at line 5130 of file avcodec.h.

Referenced by av_parser_init(), and h264_parse().

◆ cur_frame_pos

int64_t AVCodecParserContext::cur_frame_pos[AV_PARSER_PTS_NB]

Position of the packet in file.

Analogous to cur_frame_pts/dts

Definition at line 5137 of file avcodec.h.

Referenced by av_parser_parse2(), and ff_fetch_timestamp().

◆ pos

int64_t AVCodecParserContext::pos

Byte position of currently parsed frame in stream.

Definition at line 5142 of file avcodec.h.

Referenced by av_parser_parse2(), ff_add_index_entry(), ff_fetch_timestamp(), ff_gen_search(), ff_seek_frame_binary(), and parse_packet().

◆ last_pos

int64_t AVCodecParserContext::last_pos

Previous frame byte position.

Definition at line 5147 of file avcodec.h.

Referenced by av_parser_parse2().

◆ duration

int AVCodecParserContext::duration

Duration of the current frame.

For audio, this is in units of 1 / AVCodecContext.sample_rate. For all other types, this is in units of AVCodecContext.time_base.

Definition at line 5154 of file avcodec.h.

Referenced by adx_parse(), av_vorbis_parse_init(), compute_pkt_fields(), cook_parse(), dca_parse(), dvaudio_parse(), dvd_nav_parse(), estimate_timings_from_bit_rate(), estimate_timings_from_pts(), ff_aac_ac3_parse(), ff_rfps_add_frame(), flac_parse(), g729_parse(), get_best_header(), gsm_parse(), mlp_parse(), mpegaudio_parse(), opus_find_frame_end(), parse_packet(), read_frame_internal(), sbc_parse_header(), tak_parse(), update_initial_durations(), update_stream_timings(), and xma_parse().

◆ field_order

enum AVFieldOrder AVCodecParserContext::field_order

Definition at line 5156 of file avcodec.h.

Referenced by ff_qsv_process_data(), hevc_parse_slice_header(), mpegvideo_extract_headers(), parse(), parse_nal_units(), and vc1_extract_header().

◆ picture_structure

enum AVPictureStructure AVCodecParserContext::picture_structure

Indicate whether a picture is coded as a frame, top field or bottom field.

For example, H.264 field_pic_flag equal to 0 corresponds to AV_PICTURE_STRUCTURE_FRAME. An H.264 picture with field_pic_flag equal to 1 and bottom_field_flag equal to 0 corresponds to AV_PICTURE_STRUCTURE_TOP_FIELD.

Definition at line 5166 of file avcodec.h.

Referenced by hevc_parse_slice_header(), parse(), and parse_nal_units().

◆ output_picture_number

int AVCodecParserContext::output_picture_number

Picture number incremented in presentation or output order.

This field may be reinitialized at the first picture of a new sequence.

For example, this corresponds to H.264 PicOrderCnt.

Definition at line 5174 of file avcodec.h.

Referenced by hevc_parse_slice_header(), and parse_nal_units().

◆ width

int AVCodecParserContext::width

Dimensions of the decoded video intended for presentation.

Definition at line 5179 of file avcodec.h.

Referenced by ff_qsv_process_data(), hevc_parse_slice_header(), mpegvideo_extract_headers(), parse(), parse_nal_units(), and vc1_extract_header().

◆ height

int AVCodecParserContext::height

Definition at line 5180 of file avcodec.h.

Referenced by ff_qsv_process_data(), hevc_parse_slice_header(), mpegvideo_extract_headers(), parse(), parse_nal_units(), and vc1_extract_header().

◆ coded_width

int AVCodecParserContext::coded_width

Dimensions of the coded video.

Definition at line 5185 of file avcodec.h.

Referenced by ff_qsv_process_data(), hevc_parse_slice_header(), mpegvideo_extract_headers(), parse(), parse_nal_units(), and vc1_extract_header().

◆ coded_height

int AVCodecParserContext::coded_height

Definition at line 5186 of file avcodec.h.

Referenced by ff_qsv_process_data(), hevc_parse_slice_header(), mpegvideo_extract_headers(), parse(), parse_nal_units(), and vc1_extract_header().

◆ format

int AVCodecParserContext::format

The format of the coded data, corresponds to enum AVPixelFormat for video and for enum AVSampleFormat for audio.

Note that a decoder can have considerable freedom in how exactly it decodes the data, so the format reported here might be different from the one returned by a decoder.

Definition at line 5196 of file avcodec.h.

Referenced by av_parser_init(), ff_qsv_process_data(), hevc_parse_slice_header(), mpegvideo_extract_headers(), parse(), parse_nal_units(), and vc1_extract_header().

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

libavcodec/avcodec.h

Data Fields

Detailed Description

Field Documentation

◆ priv_data

◆ parser

◆ frame_offset

◆ cur_offset

◆ next_frame_offset

◆ pict_type

◆ repeat_pict

◆ pts

◆ dts

◆ last_pts

◆ last_dts

◆ fetch_timestamp

◆ cur_frame_start_index

◆ cur_frame_offset

◆ cur_frame_pts

◆ cur_frame_dts

◆ flags

◆ offset

◆ cur_frame_end

◆ key_frame

◆ convergence_duration

◆ dts_sync_point

◆ dts_ref_dts_delta

◆ pts_dts_delta

◆ cur_frame_pos

◆ pos

◆ last_pos

◆ duration

◆ field_order

◆ picture_structure

◆ output_picture_number

◆ width

◆ height

◆ coded_width

◆ coded_height

◆ format