parser.c File Reference

#include "libavutil/common.h"
#include "libavutil/mem.h"
#include "libavcodec/golomb.h"
#include "libavcodec/parser_internal.h"
#include "libavcodec/h2645_parse.h"
#include "libavcodec/parser.h"
#include "hevc.h"
#include "parse.h"
#include "ps.h"
#include "sei.h"

Go to the source code of this file.

Data Structures
struct	HEVCParserContext

Macros
#define	START_CODE   0x000001
	start_code_prefix_one_3bytes
#define	IS_IRAP_NAL(nal)
#define	IS_IDR_NAL(nal)

Functions
static int	hevc_parse_slice_header (AVCodecParserContext *s, H2645NAL *nal, AVCodecContext *avctx)
static int	parse_nal_units (AVCodecParserContext *s, const uint8_t *buf, int buf_size, AVCodecContext *avctx)
	Parse NAL units of found picture and decode some basic information.
static int	hevc_find_frame_end (AVCodecParserContext *s, const uint8_t *buf, int buf_size)
	Find the end of the current frame in the bitstream.
static int	hevc_parse (AVCodecParserContext *s, AVCodecContext *avctx, const uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size)
static void	hevc_parser_close (AVCodecParserContext *s)

Variables
const FFCodecParser	ff_hevc_parser

Macro Definition Documentation

START_CODE

#define START_CODE   0x000001

start_code_prefix_one_3bytes

Definition at line 36 of file parser.c.

IS_IRAP_NAL

#define IS_IRAP_NAL

(

nal

)

Value:

(nal->type >= 16 && nal->type <= 23)

Definition at line 38 of file parser.c.

Referenced by hevc_parse_slice_header().

IS_IDR_NAL

#define IS_IDR_NAL

(

nal

)

Value:

(nal->type == HEVC_NAL_IDR_W_RADL || nal->type == HEVC_NAL_IDR_N_LP)

Definition at line 39 of file parser.c.

Referenced by hevc_parse_slice_header().

Function Documentation

hevc_parse_slice_header()

static int hevc_parse_slice_header ( AVCodecParserContext * s, H2645NAL * nal, AVCodecContext * avctx )

static

Definition at line 56 of file parser.c.

Referenced by parse_nal_units().

parse_nal_units()

static int parse_nal_units ( AVCodecParserContext * s, const uint8_t * buf, int buf_size, AVCodecContext * avctx )

static

Parse NAL units of found picture and decode some basic information.

Parameters

s	parser context.
avctx	codec context.
buf	buffer with field/frame data.
buf_size	size of the buffer.

Definition at line 181 of file parser.c.

Referenced by hevc_parse().

hevc_find_frame_end()

static int hevc_find_frame_end ( AVCodecParserContext * s, 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 END_NOT_FOUND

Definition at line 259 of file parser.c.

Referenced by hevc_parse().

hevc_parse()

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

static

Definition at line 308 of file parser.c.

hevc_parser_close()

static void hevc_parser_close ( AVCodecParserContext * s )

static

Definition at line 346 of file parser.c.

Variable Documentation

ff_hevc_parser

const FFCodecParser ff_hevc_parser

Initial value:

= {
    PARSER_CODEC_LIST(AV_CODEC_ID_HEVC),
    .priv_data_size = sizeof(HEVCParserContext),
    .parse          = hevc_parse,
    .close          = hevc_parser_close,
}

Definition at line 357 of file parser.c.