libavformat/rtp.h File Reference

#include "libavformat/avformat.h"
#include "libavcodec/avcodec.h"

Go to the source code of this file.

Defines
#define	RTP_PT_PRIVATE   96
#define	RTP_VERSION   2
#define	RTP_MAX_SDES   256
	maximum text length for SDES
#define	RTCP_TX_RATIO_NUM   5
#define	RTCP_TX_RATIO_DEN   1000
#define	RTP_XIPH_IDENT   0xfecdba
Enumerations
enum	RTCPType {   RTCP_SR = 200, RTCP_RR, RTCP_SDES, RTCP_BYE,   RTCP_APP }
Functions
int	ff_rtp_get_payload_type (AVFormatContext *fmt, AVCodecContext *codec)
	Return the payload type for a given codec used in the given format context.
int	ff_rtp_get_codec_info (AVCodecContext *codec, int payload_type)
	Initialize a codec context based on the payload type.
const char *	ff_rtp_enc_name (int payload_type)
	Return the encoding name (as defined in http://www.iana.org/assignments/rtp-parameters) for a given payload type.
enum CodecID	ff_rtp_codec_id (const char *buf, enum AVMediaType codec_type)
	Return the codec id for the given encoding name and codec type.

---

Define Documentation

#define RTCP_TX_RATIO_DEN   1000

Definition at line 77 of file rtp.h.

Referenced by ff_rtp_check_and_send_back_rr(), and rtp_write_packet().

#define RTCP_TX_RATIO_NUM   5

Definition at line 76 of file rtp.h.

Referenced by ff_rtp_check_and_send_back_rr(), and rtp_write_packet().

#define RTP_MAX_SDES   256

maximum text length for SDES

Definition at line 73 of file rtp.h.

#define RTP_PT_PRIVATE   96

Definition at line 71 of file rtp.h.

Referenced by ff_rtp_get_payload_type().

#define RTP_VERSION   2

Definition at line 72 of file rtp.h.

Referenced by ff_rtp_check_and_send_back_rr(), ff_rtp_send_data(), ff_rtp_send_punch_packets(), and rtp_parse_one_packet().

#define RTP_XIPH_IDENT   0xfecdba

Definition at line 83 of file rtp.h.

Referenced by ff_rtp_send_xiph().

---

Enumeration Type Documentation

enum RTCPType

Enumerator:

RTCP_SR
RTCP_RR
RTCP_SDES
RTCP_BYE
RTCP_APP

Definition at line 86 of file rtp.h.

---

Function Documentation

enum CodecID ff_rtp_codec_id	(	const char *	buf,
		enum AVMediaType	codec_type
	)

Return the codec id for the given encoding name and codec type.

Parameters:

	buf	A pointer to the string containing the encoding name
	codec_type	The codec type

Returns:

In case of unknown encoding name, CODEC_ID_NONE is returned; otherwise, the codec id is returned

Definition at line 133 of file rtp.c.

const char* ff_rtp_enc_name

(

int

payload_type

)

Return the encoding name (as defined in http://www.iana.org/assignments/rtp-parameters) for a given payload type.

Parameters:

payload_type

The payload type (the 'PT' field in the RTP header)

Returns:

In case of unknown payload type or dynamic payload type, a pointer to an empty string is returned; otherwise, a pointer to a string containing the encoding name is returned

Definition at line 121 of file rtp.c.

Referenced by ff_rtp_parse_close(), and ff_rtp_parse_open().

int ff_rtp_get_codec_info	(	AVCodecContext *	codec,
		int	payload_type
	)

Initialize a codec context based on the payload type.

Fill the codec_type and codec_id fields of a codec context with information depending on the payload type; for audio codecs, the channels and sample_rate fields are also filled.

Parameters:

	codec	The context of the codec
	payload_type	The payload type (the 'PT' field in the RTP header)

Returns:

In case of unknown payload type or dynamic payload type, a negative value is returned; otherwise, 0 is returned

Definition at line 74 of file rtp.c.

int ff_rtp_get_payload_type	(	AVFormatContext *	fmt,
		AVCodecContext *	codec
	)

Return the payload type for a given codec used in the given format context.

Parameters:

	fmt	The context of the format
	codec	The context of the codec

Returns:

The payload type (the 'PT' field in the RTP header).

Definition at line 93 of file rtp.c.

Referenced by rtp_write_header().