libavformat/sdp.c File Reference

#include <string.h>
#include "libavutil/avstring.h"
#include "libavutil/base64.h"
#include "avformat.h"
#include "internal.h"
#include "avc.h"
#include "rtp.h"

Go to the source code of this file.

Functions
int	avf_sdp_create (AVFormatContext *ac[], int n_files, char *buff, int size)
	Generates an SDP for an RTP session.
void	ff_sdp_write_media (char *buff, int size, AVCodecContext *c, const char *dest_addr, int port, int ttl)
	Appends the media-specific SDP fragment for the media stream c to the buffer buff.

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Function Documentation

int avf_sdp_create	(	AVFormatContext *	ac[],
		int	n_files,
		char *	buff,
		int	size
	)

Generates an SDP for an RTP session.

Parameters:

	ac	array of AVFormatContexts describing the RTP streams. If the array is composed by only one context, such context can contain multiple AVStreams (one AVStream per RTP stream). Otherwise, all the contexts in the array (an AVCodecContext per RTP stream) must contain only one AVStream.
	n_files	number of AVCodecContexts contained in ac
	buff	buffer where the SDP will be stored (must be allocated by the caller)
	size	the size of the buffer

Returns:

0 if OK, AVERROR_xxx on error

Definition at line 368 of file sdp.c.

Referenced by prepare_sdp_description(), and print_sdp().

void ff_sdp_write_media	(	char *	buff,
		int	size,
		AVCodecContext *	c,
		const char *	dest_addr,
		int	port,
		int	ttl
	)

Appends the media-specific SDP fragment for the media stream c to the buffer buff.

Note, the buffer needs to be initialized, since it is appended to existing content.

Parameters:

	buff	the buffer to append the SDP fragment to
	size	the size of the buff buffer
	c	the AVCodecContext of the media to describe
	dest_addr	the destination address of the media stream, may be NULL
	port	the destination port of the media stream, 0 if unknown
	ttl	the time to live of the stream, 0 if not multicast

Definition at line 373 of file sdp.c.

Referenced by mov_write_udta_sdp().