FFmpeg: libavcodec/jpeg2000_parser.c File Reference

FFmpeg

[フレーム]

libavcodec

Data Structures | Enumerations | Functions | Variables

jpeg2000_parser.c File Reference

#include "parser.h"

Go to the source code of this file.

Data Structures

struct JPEG2000ParserContext

Enumerations

enum frame_type { jp2_file = 1, j2k_cstream }

Functions

static void reset_context (JPEG2000ParserContext *m)

static uint8_t info_marker (uint16_t marker)

static int find_frame_end (JPEG2000ParserContext *m, const uint8_t *buf, int buf_size)

Find the end of the current frame in the bitstream. More...

static int jpeg2000_parse (AVCodecParserContext *s, AVCodecContext *avctx, const uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size)

Variables

const AVCodecParser ff_jpeg2000_parser

Detailed Description

JPEG2000 parser.

Definition in file jpeg2000_parser.c.

Enumeration Type Documentation

◆ frame_type

enum frame_type

Enumerator
jp2_file
j2k_cstream

Definition at line 31 of file jpeg2000_parser.c.

Function Documentation

◆ reset_context()

static void reset_context ( JPEG2000ParserContext * m )

inlinestatic

Definition at line 49 of file jpeg2000_parser.c.

Referenced by find_frame_end().

◆ info_marker()

static uint8_t info_marker ( uint16_t marker )

static

Definition at line 66 of file jpeg2000_parser.c.

Referenced by find_frame_end().

◆ find_frame_end()

static int find_frame_end ( JPEG2000ParserContext * m,

const uint8_t * buf,

int buf_size

)

static

Find the end of the current frame in the bitstream.

Returns: the position of the first byte of the next frame, or -1

Definition at line 93 of file jpeg2000_parser.c.

Referenced by jpeg2000_parse().

◆ jpeg2000_parse()

static int jpeg2000_parse ( AVCodecParserContext * s,

AVCodecContext * avctx,

const uint8_t ** poutbuf,

int * poutbuf_size,

const uint8_t * buf,

int buf_size

)

static

Definition at line 188 of file jpeg2000_parser.c.

Variable Documentation

◆ ff_jpeg2000_parser

const AVCodecParser ff_jpeg2000_parser

Initial value:

= {

.codec_ids = { AV_CODEC_ID_JPEG2000 },

.priv_data_size = sizeof(JPEG2000ParserContext),

.parser_parse = jpeg2000_parse,

.parser_close = ff_parse_close,

}

Definition at line 214 of file jpeg2000_parser.c.

ff_parse_close

void ff_parse_close(AVCodecParserContext *s)

Definition: parser.c:284

jpeg2000_parse

static int jpeg2000_parse(AVCodecParserContext *s, AVCodecContext *avctx, const uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size)

Definition: jpeg2000_parser.c:188

JPEG2000ParserContext

Definition: jpeg2000_parser.c:36

AV_CODEC_ID_JPEG2000

@ AV_CODEC_ID_JPEG2000

Definition: codec_id.h:140

Generated on Tue Feb 28 2023 21:34:23 for FFmpeg by doxygen 1.8.17