avc.c File Reference

#include "libavutil/intreadwrite.h"
#include "libavcodec/h264.h"
#include "libavcodec/get_bits.h"
#include "avformat.h"
#include "avio.h"
#include "avc.h"
#include "avio_internal.h"

Go to the source code of this file.

Functions
static const uint8_t *	avc_find_startcode_internal (const uint8_t *p, const uint8_t *end)
const uint8_t *	ff_avc_find_startcode (const uint8_t *p, const uint8_t *end)
static int	avc_parse_nal_units (AVIOContext *pb, NALUList *list, const uint8_t *buf_in, int size)
int	ff_avc_parse_nal_units (AVIOContext *pb, const uint8_t *buf_in, int size)
int	ff_nal_units_create_list (NALUList *list, const uint8_t *buf, int size)
void	ff_nal_units_write_list (const NALUList *list, AVIOContext *pb, const uint8_t *buf)
int	ff_avc_parse_nal_units_buf (const uint8_t *buf_in, uint8_t **buf, int *size)
int	ff_isom_write_avcc (AVIOContext *pb, const uint8_t *data, int len)
int	ff_avc_write_annexb_extradata (const uint8_t *in, uint8_t **buf, int *size)
const uint8_t *	ff_avc_mp4_find_startcode (const uint8_t *start, const uint8_t *end, int nal_length_size)
uint8_t *	ff_nal_unit_extract_rbsp (const uint8_t *src, uint32_t src_len, uint32_t *dst_len, int header_len)
static int	get_ue_golomb (GetBitContext *gb)
static int	get_se_golomb (GetBitContext *gb)
int	ff_avc_decode_sps (H264SPS *sps, const uint8_t *buf, int buf_size)

Variables
static const AVRational	avc_sample_aspect_ratio [17]

Function Documentation

avc_find_startcode_internal()

static const uint8_t* avc_find_startcode_internal ( const uint8_t *  p, const uint8_t *  end  )

static

Definition at line 30 of file avc.c.

Referenced by ff_avc_find_startcode().

ff_avc_find_startcode()

const uint8_t* ff_avc_find_startcode	(	const uint8_t *	p,
		const uint8_t *	end
	)

Definition at line 67 of file avc.c.

Referenced by avc_parse_nal_units(), ff_mov_cenc_avc_parse_nal_units(), ff_rtp_send_h264_hevc(), and mxf_parse_h264_frame().

avc_parse_nal_units()

static int avc_parse_nal_units ( AVIOContext *  pb, NALUList *  list, const uint8_t *  buf_in, int  size  )

static

Definition at line 73 of file avc.c.

Referenced by ff_avc_parse_nal_units(), and ff_nal_units_create_list().

ff_avc_parse_nal_units()

int ff_avc_parse_nal_units	(	AVIOContext *	pb,
		const uint8_t *	buf_in,
		int	size
	)

Definition at line 109 of file avc.c.

Referenced by ff_avc_parse_nal_units_buf(), ff_hevc_annexb2mp4(), and ff_mov_write_packet().

ff_nal_units_create_list()

int ff_nal_units_create_list	(	NALUList *	list,
		const uint8_t *	buf,
		int	size
	)

Definition at line 114 of file avc.c.

ff_nal_units_write_list()

void ff_nal_units_write_list	(	const NALUList *	list,
		AVIOContext *	pb,
		const uint8_t *	buf
	)

Definition at line 120 of file avc.c.

ff_avc_parse_nal_units_buf()

int ff_avc_parse_nal_units_buf	(	const uint8_t *	buf_in,
		uint8_t **	buf,
		int *	size
	)

Definition at line 129 of file avc.c.

Referenced by ff_hevc_annexb2mp4(), ff_isom_write_avcc(), ff_isom_write_hvcc(), ff_mov_write_packet(), and flv_write_packet().

ff_isom_write_avcc()

int ff_isom_write_avcc	(	AVIOContext *	pb,
		const uint8_t *	data,
		int	len
	)

Definition at line 142 of file avc.c.

Referenced by flv_write_codec_header(), mkv_assemble_native_codecprivate(), mov_write_avcc_tag(), and set_codec_str().

ff_avc_write_annexb_extradata()

int ff_avc_write_annexb_extradata	(	const uint8_t *	in,
		uint8_t **	buf,
		int *	size
	)

Definition at line 255 of file avc.c.

Referenced by get_private_data(), and mov_write_isml_manifest().

ff_avc_mp4_find_startcode()

const uint8_t* ff_avc_mp4_find_startcode	(	const uint8_t *	start,
		const uint8_t *	end,
		int	nal_length_size
	)

Definition at line 286 of file avc.c.

Referenced by ff_rtp_send_h264_hevc().

ff_nal_unit_extract_rbsp()

uint8_t* ff_nal_unit_extract_rbsp	(	const uint8_t *	src,
		uint32_t	src_len,
		uint32_t *	dst_len,
		int	header_len
	)

Definition at line 303 of file avc.c.

Referenced by ff_avc_decode_sps(), hvcc_add_nal_unit(), and write_codec_attr().

get_ue_golomb()

static int get_ue_golomb ( GetBitContext *  gb )

inlinestatic

Definition at line 355 of file avc.c.

Referenced by ff_avc_decode_sps(), and get_se_golomb().

get_se_golomb()

static int get_se_golomb ( GetBitContext *  gb )

inlinestatic

Definition at line 362 of file avc.c.

Referenced by ff_avc_decode_sps().

ff_avc_decode_sps()

int ff_avc_decode_sps	(	H264SPS *	sps,
		const uint8_t *	buf,
		int	buf_size
	)

Definition at line 368 of file avc.c.

Referenced by ff_isom_write_avcc(), and mxf_parse_h264_frame().

Variable Documentation

avc_sample_aspect_ratio

const AVRational avc_sample_aspect_ratio[17]

static

Initial value:

= {
    {   0,  1 },
    {   1,  1 },
    {  12, 11 },
    {  10, 11 },
    {  16, 11 },
    {  40, 33 },
    {  24, 11 },
    {  20, 11 },
    {  32, 11 },
    {  80, 33 },
    {  18, 11 },
    {  15, 11 },
    {  64, 33 },
    { 160, 99 },
    {   4,  3 },
    {   3,  2 },
    {   2,  1 },
}

Definition at line 335 of file avc.c.

Referenced by ff_avc_decode_sps().