rtpdec_h264.c File Reference

H.264 / RTP Code (RFC3984) More...

#include "libavutil/attributes.h"
#include "libavutil/base64.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/avstring.h"
#include "libavutil/mem.h"
#include "avformat.h"
#include "rtpdec.h"
#include "rtpdec_formats.h"

Go to the source code of this file.

Data Structures
struct	PayloadContext
	RTP/JPEG specific private data. More...

Macros
#define	COUNT_NAL_TYPE(data, nal)   do { } while (0)
#define	NAL_COUNTERS   NULL
#define	NAL_MASK   0x1f

Functions
static void	parse_profile_level_id (AVFormatContext *s, PayloadContext *h264_data, const char *value)
int	ff_h264_parse_sprop_parameter_sets (AVFormatContext *s, uint8_t **data_ptr, int *size_ptr, const char *value)
static int	sdp_parse_fmtp_config_h264 (AVFormatContext *s, AVStream *stream, PayloadContext *h264_data, const char *attr, const char *value)
void	ff_h264_parse_framesize (AVCodecParameters *par, const char *p)
int	ff_h264_handle_aggregated_packet (AVFormatContext *ctx, PayloadContext *data, AVPacket *pkt, const uint8_t *buf, int len, int skip_between, int *nal_counters, int nal_mask)
int	ff_h264_handle_frag_packet (AVPacket *pkt, const uint8_t *buf, int len, int start_bit, const uint8_t *nal_header, int nal_header_len)
static int	h264_handle_packet_fu_a (AVFormatContext *ctx, PayloadContext *data, AVPacket *pkt, const uint8_t *buf, int len, int *nal_counters, int nal_mask)
static int	h264_handle_packet (AVFormatContext *ctx, PayloadContext *data, AVStream *st, AVPacket *pkt, uint32_t *timestamp, const uint8_t *buf, int len, uint16_t seq, int flags)
static void	h264_close_context (PayloadContext *data)
static int	parse_h264_sdp_line (AVFormatContext *s, int st_index, PayloadContext *h264_data, const char *line)

Variables
static const uint8_t	start_sequence [] = { 0, 0, 0, 1 }
const RTPDynamicProtocolHandler	ff_h264_dynamic_handler

Detailed Description

H.264 / RTP Code (RFC3984)

Author

Ryan Martell rdm4@.nosp@m.mart.nosp@m.ellve.nosp@m.ntur.nosp@m.es.co.nosp@m.m

Note

Notes: Notes: This currently supports packetization mode: Single Nal Unit Mode (0), or Non-Interleaved Mode (1). It currently does not support Interleaved Mode (2). (This requires implementing STAP-B, MTAP16, MTAP24, FU-B packet types)

Definition in file rtpdec_h264.c.

Macro Definition Documentation

COUNT_NAL_TYPE

#define COUNT_NAL_TYPE	(		data,
			nal
	)		do { } while (0)

Definition at line 61 of file rtpdec_h264.c.

NAL_COUNTERS

#define NAL_COUNTERS   NULL

Definition at line 62 of file rtpdec_h264.c.

NAL_MASK

#define NAL_MASK   0x1f

Definition at line 64 of file rtpdec_h264.c.

Function Documentation

parse_profile_level_id()

static void parse_profile_level_id ( AVFormatContext *  s, PayloadContext *  h264_data, const char *  value  )

static

Definition at line 68 of file rtpdec_h264.c.

Referenced by sdp_parse_fmtp_config_h264().

ff_h264_parse_sprop_parameter_sets()

int ff_h264_parse_sprop_parameter_sets	(	AVFormatContext *	s,
		uint8_t **	data_ptr,
		int *	size_ptr,
		const char *	value
	)

Definition at line 97 of file rtpdec_h264.c.

Referenced by hevc_sdp_parse_fmtp_config(), and sdp_parse_fmtp_config_h264().

sdp_parse_fmtp_config_h264()

static int sdp_parse_fmtp_config_h264 ( AVFormatContext *  s, AVStream *  stream, PayloadContext *  h264_data, const char *  attr, const char *  value  )

static

Definition at line 145 of file rtpdec_h264.c.

Referenced by parse_h264_sdp_line().

ff_h264_parse_framesize()

void ff_h264_parse_framesize	(	AVCodecParameters *	par,
		const char *	p
	)

Definition at line 185 of file rtpdec_h264.c.

Referenced by hevc_parse_sdp_line(), and parse_h264_sdp_line().

ff_h264_handle_aggregated_packet()

int ff_h264_handle_aggregated_packet	(	AVFormatContext *	ctx,
		PayloadContext *	data,
		AVPacket *	pkt,
		const uint8_t *	buf,
		int	len,
		int	skip_between,
		int *	nal_counters,
		int	nal_mask
	)

Definition at line 207 of file rtpdec_h264.c.

Referenced by h264_handle_packet(), and hevc_handle_packet().

ff_h264_handle_frag_packet()

int ff_h264_handle_frag_packet	(	AVPacket *	pkt,
		const uint8_t *	buf,
		int	len,
		int	start_bit,
		const uint8_t *	nal_header,
		int	nal_header_len
	)

Definition at line 265 of file rtpdec_h264.c.

Referenced by h264_handle_packet_fu_a(), and hevc_handle_packet().

h264_handle_packet_fu_a()

static int h264_handle_packet_fu_a ( AVFormatContext *  ctx, PayloadContext *  data, AVPacket *  pkt, const uint8_t *  buf, int  len, int *  nal_counters, int  nal_mask  )

static

Definition at line 286 of file rtpdec_h264.c.

Referenced by h264_handle_packet().

h264_handle_packet()

static int h264_handle_packet ( AVFormatContext *  ctx, PayloadContext *  data, AVStream *  st, AVPacket *  pkt, uint32_t *  timestamp, const uint8_t *  buf, int  len, uint16_t  seq, int  flags  )

static

Definition at line 313 of file rtpdec_h264.c.

h264_close_context()

static void h264_close_context ( PayloadContext *  data )

static

Definition at line 377 of file rtpdec_h264.c.

parse_h264_sdp_line()

static int parse_h264_sdp_line ( AVFormatContext *  s, int  st_index, PayloadContext *  h264_data, const char *  line  )

static

Definition at line 390 of file rtpdec_h264.c.

Variable Documentation

start_sequence

const uint8_t start_sequence[] = { 0, 0, 0, 1 }

static

Definition at line 66 of file rtpdec_h264.c.

Referenced by ff_h264_handle_aggregated_packet(), ff_h264_handle_frag_packet(), ff_h264_parse_sprop_parameter_sets(), and h264_handle_packet().

ff_h264_dynamic_handler

const RTPDynamicProtocolHandler ff_h264_dynamic_handler

Initial value:

= {
    .enc_name         = "H264",
    .codec_type       = AVMEDIA_TYPE_VIDEO,
    .codec_id         = AV_CODEC_ID_H264,
    .need_parsing     = AVSTREAM_PARSE_FULL,
    .priv_data_size   = sizeof(PayloadContext),
    .parse_sdp_a_line = parse_h264_sdp_line,
    .close            = h264_close_context,
    .parse_packet     = h264_handle_packet,
}

Definition at line 412 of file rtpdec_h264.c.