Struct AVCodecParserContext

#[repr(C)]
pub struct AVCodecParserContext {

    pub priv_data: *mut c_void,
    pub parser: *const AVCodecParser,
    pub frame_offset: i64,
    pub cur_offset: i64,
    pub next_frame_offset: i64,
    pub pict_type: i32,
    pub repeat_pict: i32,
    pub pts: i64,
    pub dts: i64,
    pub last_pts: i64,
    pub last_dts: i64,
    pub fetch_timestamp: i32,
    pub cur_frame_start_index: i32,
    pub cur_frame_offset: [i64; 4],
    pub cur_frame_pts: [i64; 4],
    pub cur_frame_dts: [i64; 4],
    pub flags: i32,
    pub offset: i64,
    pub cur_frame_end: [i64; 4],
    pub key_frame: i32,
    pub dts_sync_point: i32,
    pub dts_ref_dts_delta: i32,
    pub pts_dts_delta: i32,
    pub cur_frame_pos: [i64; 4],
    pub pos: i64,
    pub last_pos: i64,
    pub duration: i32,
    pub field_order: u32,
    pub picture_structure: u32,
    pub output_picture_number: i32,
    pub width: i32,
    pub height: i32,
    pub coded_width: i32,
    pub coded_height: i32,
    pub format: i32,
}

Fields

priv_data: *mut c_void

parser: *const AVCodecParser

frame_offset: i64

cur_offset: i64

next_frame_offset: i64

pict_type: i32

repeat_pict: i32

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.

pts: i64

dts: i64

last_pts: i64

last_dts: i64

fetch_timestamp: i32

cur_frame_start_index: i32

cur_frame_offset: [i64; 4]

cur_frame_pts: [i64; 4]

cur_frame_dts: [i64; 4]

flags: i32

offset: i64

< byte offset from starting packet start

cur_frame_end: [i64; 4]

key_frame: i32

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.

dts_sync_point: i32

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.

dts_ref_dts_delta: i32

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.

pts_dts_delta: i32

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.

cur_frame_pos: [i64; 4]

Position of the packet in file.

Analogous to cur_frame_pts/dts

pos: i64

Byte position of currently parsed frame in stream.

last_pos: i64

Previous frame byte position.

duration: i32

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.

field_order: u32

picture_structure: u32

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.

output_picture_number: i32

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.

width: i32

Dimensions of the decoded video intended for presentation.

height: i32

coded_width: i32

Dimensions of the coded video.

coded_height: i32

format: i32

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.

Trait Implementations

impl Clone for AVCodecParserContext

fn clone(&self) -> AVCodecParserContext

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AVCodecParserContext

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Copy for AVCodecParserContext