h2645_parse.c File Reference

#include <string.h>
#include "config.h"
#include "libavutil/intmath.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mem.h"
#include "bytestream.h"
#include "hevc.h"
#include "h2645_parse.h"

Go to the source code of this file.

Macros
#define	STARTCODE_TEST

Functions
int	ff_h2645_extract_rbsp (const uint8_t *src, int length, H2645RBSP *rbsp, H2645NAL *nal, int small_padding)
	Extract the raw (unescaped) bitstream. More...
static const char *	nal_unit_name (int nal_type)
static int	get_bit_length (H2645NAL *nal, int skip_trailing_zeros)
static int	hevc_parse_nal_header (H2645NAL *nal, void *logctx)
static int	h264_parse_nal_header (H2645NAL *nal, void *logctx)
static int	find_next_start_code (const uint8_t *buf, const uint8_t *next_avc)
int	ff_h2645_packet_split (H2645Packet *pkt, const uint8_t *buf, int length, void *logctx, int is_nalff, int nal_length_size, enum AVCodecID codec_id, int small_padding)
	Split an input packet into NAL units. More...
void	ff_h2645_packet_uninit (H2645Packet *pkt)
	Free all the allocated memory in the packet. More...

Macro Definition Documentation

#define STARTCODE_TEST

Value:

if (i + 2 < length && src[i + 1] == 0 && src[i + 2] <= 3) {     \
            if (src[i + 2] != 3 && src[i + 2] != 0) {                   \
                /* startcode, so we must be past the end */             \
                length = i;                                             \
            }                                                           \
            break;                                                      \
        }

Referenced by ff_h2645_extract_rbsp().

Function Documentation

int ff_h2645_extract_rbsp	(	const uint8_t *	src,
		int	length,
		H2645RBSP *	rbsp,
		H2645NAL *	nal,
		int	small_padding
	)

Extract the raw (unescaped) bitstream.

Definition at line 33 of file h2645_parse.c.

Referenced by ff_h2645_packet_split(), generate_fake_vps(), and parse_nal_units().

static const char* nal_unit_name ( int  nal_type )

static

Definition at line 148 of file h2645_parse.c.

Referenced by hevc_parse_nal_header().

static int get_bit_length ( H2645NAL *  nal, int  skip_trailing_zeros  )

static

Definition at line 180 of file h2645_parse.c.

Referenced by ff_h2645_packet_split().

static int hevc_parse_nal_header ( H2645NAL *  nal, void *  logctx  )

static

Returns

AVERROR_INVALIDDATA if the packet is not a valid NAL unit, 0 if the unit should be skipped, 1 otherwise

Definition at line 209 of file h2645_parse.c.

Referenced by ff_h2645_packet_split().

static int h264_parse_nal_header ( H2645NAL *  nal, void *  logctx  )

static

Definition at line 231 of file h2645_parse.c.

Referenced by ff_h2645_packet_split().

static int find_next_start_code ( const uint8_t *  buf, const uint8_t *  next_avc  )

static

Definition at line 248 of file h2645_parse.c.

Referenced by ff_h2645_packet_split().

int ff_h2645_packet_split	(	H2645Packet *	pkt,
		const uint8_t *	buf,
		int	length,
		void *	logctx,
		int	is_nalff,
		int	nal_length_size,
		enum AVCodecID	codec_id,
		int	small_padding
	)

Split an input packet into NAL units.

Definition at line 263 of file h2645_parse.c.

Referenced by cbs_h2645_split_fragment(), decode_extradata_ps(), decode_nal_units(), extract_extradata_h2645(), hevc_decode_nal_units(), and parse_nal_units().

void ff_h2645_packet_uninit

(

H2645Packet *

pkt

)

Free all the allocated memory in the packet.

Definition at line 386 of file h2645_parse.c.

Referenced by cbs_h264_close(), cbs_h265_close(), decode_extradata_ps(), extract_extradata_close(), h264_decode_end(), hevc_decode_free(), hevc_decode_nal_units(), and hevc_parser_close().