Miam-Player  0.8.0
A nice music player
AVCodecParserContext Struct Reference

#include <avcodec.h>

Public Attributes

void * priv_data
 
struct AVCodecParserparser
 
int64_t frame_offset
 
int64_t cur_offset
 
int64_t next_frame_offset
 
int pict_type
 
int repeat_pict
 
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
 
attribute_deprecated int64_t convergence_duration
 
int dts_sync_point
 
int dts_ref_dts_delta
 
int pts_dts_delta
 
int64_t cur_frame_pos [AV_PARSER_PTS_NB]
 
int64_t pos
 
int64_t last_pos
 
int duration
 
enum AVFieldOrder field_order
 
enum AVPictureStructure picture_structure
 
int output_picture_number
 
int width
 
int height
 
int coded_width
 
int coded_height
 
int format
 

Member Data Documentation

int AVCodecParserContext::coded_height
int AVCodecParserContext::coded_width

Dimensions of the coded video.

attribute_deprecated int64_t AVCodecParserContext::convergence_duration
Deprecated:
unused
int64_t AVCodecParserContext::cur_frame_dts[AV_PARSER_PTS_NB]
int64_t AVCodecParserContext::cur_frame_end[AV_PARSER_PTS_NB]
int64_t AVCodecParserContext::cur_frame_offset[AV_PARSER_PTS_NB]
int64_t AVCodecParserContext::cur_frame_pos[AV_PARSER_PTS_NB]

Position of the packet in file.

Analogous to cur_frame_pts/dts

int64_t AVCodecParserContext::cur_frame_pts[AV_PARSER_PTS_NB]
int AVCodecParserContext::cur_frame_start_index
int64_t AVCodecParserContext::cur_offset
int64_t AVCodecParserContext::dts
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.

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.

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.

int AVCodecParserContext::fetch_timestamp
enum AVFieldOrder AVCodecParserContext::field_order
int AVCodecParserContext::flags
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.

int64_t AVCodecParserContext::frame_offset
int AVCodecParserContext::height
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.

int64_t AVCodecParserContext::last_dts
int64_t AVCodecParserContext::last_pos

Previous frame byte position.

int64_t AVCodecParserContext::last_pts
int64_t AVCodecParserContext::next_frame_offset
int64_t AVCodecParserContext::offset

byte offset from starting packet start

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.

struct AVCodecParser* AVCodecParserContext::parser
int AVCodecParserContext::pict_type
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.

int64_t AVCodecParserContext::pos

Byte position of currently parsed frame in stream.

void* AVCodecParserContext::priv_data
int64_t AVCodecParserContext::pts
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.

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.

int AVCodecParserContext::width

Dimensions of the decoded video intended for presentation.


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