filestreamer.c File Reference

#include <gpac/internal/media_dev.h>
#include <gpac/constants.h>
#include <gpac/math.h>
#include <gpac/isomedia.h>
#include <gpac/ietf.h>
#include <gpac/config_file.h>
#include <gpac/base_coding.h>
#include <gpac/filestreamer.h>
#include <gpac/rtp_streamer.h>

Include dependency graph for filestreamer.c:

Data Structures
struct	GF_RTPTrack
struct	GF_ISOMRTPStreamer
	FileStreamer object. More...

Functions
static GF_Err	gf_isom_streamer_setup_sdp (GF_ISOMRTPStreamer *streamer, char *sdpfilename, char **out_sdp_buffer)
GF_Err	gf_isom_streamer_write_sdp (GF_ISOMRTPStreamer *streamer, char *sdpfilename)
	writes the SDP file More...
GF_Err	gf_isom_streamer_get_sdp (GF_ISOMRTPStreamer *streamer, char **out_sdp_buffer)
	gets the SDP file More...
void	gf_isom_streamer_reset (GF_ISOMRTPStreamer *streamer, Bool is_loop)
	resets RTP sender More...
GF_Err	gf_isom_streamer_send_next_packet (GF_ISOMRTPStreamer *streamer, s32 send_ahead_delay, s32 max_sleep_time)
	sends RTP packet More...
static u16	check_next_port (GF_ISOMRTPStreamer *streamer, u16 first_port)
GF_ISOMRTPStreamer *	gf_isom_streamer_new (const char *file_name, const char *ip_dest, u16 port, Bool loop, Bool force_mpeg4, u32 path_mtu, u32 ttl, char *ifce_addr)
	ISO File RTP Streamer list constructor. More...
void	gf_isom_streamer_del (GF_ISOMRTPStreamer *streamer)
	RTP file streamer destructor. More...

---

Data Structure Documentation

struct GF_RTPTrack

Collaboration diagram for GF_RTPTrack:

Data Fields
struct __tag_rtp_track *	next
GF_RTPStreamer *	rtp
u16	port
Double	microsec_ts_scale
u32	avc_nalu_size
u32	track_num
u32	timescale
u32	nb_aus
GF_ISOSample *	au
u32	current_au
u32	sample_duration
u32	sample_desc_index
u64	microsec_dts
u32	ts_offset
u32	microsec_ts_offset

struct __isom_rtp_streamer

This section documents the list object of the GPAC framework.

Collaboration diagram for GF_ISOMRTPStreamer:

Data Fields
GF_ISOFile *	isom
char *	dest_ip
Bool	loop
Bool	force_mpeg4_generic
u32	timelineOrigin
GF_RTPTrack *	stream
u32	duration_ms
u32	base_track
Bool	first_RTCP_sent

Function Documentation

static GF_Err gf_isom_streamer_setup_sdp ( GF_ISOMRTPStreamer *  streamer, char *  sdpfilename, char **  out_sdp_buffer  )

static

Here is the call graph for this function:

Here is the caller graph for this function:

GF_Err gf_isom_streamer_write_sdp	(	GF_ISOMRTPStreamer *	streamer,
		char *	sdpfilename
	)

Writes the SDP file asscoiated with the streaming session

Parameters

streamer	RTP streamer object
sdpfilename	SDP file name to create

Here is the call graph for this function:

Here is the caller graph for this function:

GF_Err gf_isom_streamer_get_sdp	(	GF_ISOMRTPStreamer *	streamer,
		char **	out_sdp_buffer
	)

Gets the SDP asscoiated with all media in the streaming session (only media parts are returned)

Parameters

streamer	RTP streamer object
out_sdp_buffer	location to the SDP buffer to allocate and fill

Here is the call graph for this function:

void gf_isom_streamer_reset	(	GF_ISOMRTPStreamer *	streamer,
		Bool	is_loop
	)

Reset the RTP streams to the beginning of the media file

Parameters

streamer	RTP streamer object
is_loop	indicates whether the RTP timelines shall continue from the end of the file or shall restart from 0

GF_Err gf_isom_streamer_send_next_packet	(	GF_ISOMRTPStreamer *	streamer,
		s32	send_ahead_delay,
		s32	max_sleep_time
	)

Sends the next RTP packet in the current file, potentially waiting for the TS to be mature. If the last packet is sent and looping is disabled, this will return GF_EOS.

Parameters

streamer	RTP streamer object
send_ahead_delay	delay in milliseconds for packet sending. A packet is sent if (packet.timestamp + send_ahead_delay) is greate than the current time.
max_sleep_time	indicates that if the streamer has to wait more than max_sleep_time before sending the packet, it should return and send it later.

Here is the call graph for this function:

Here is the caller graph for this function:

static u16 check_next_port ( GF_ISOMRTPStreamer *  streamer, u16  first_port  )

static

Here is the caller graph for this function:

GF_ISOMRTPStreamer* gf_isom_streamer_new	(	const char *	file_name,
		const char *	ip_dest,
		u16	port,
		Bool	loop,
		Bool	force_mpeg4,
		u32	path_mtu,
		u32	ttl,
		char *	ifce_addr
	)

    Constructs a new ISO file RTP streamer

Parameters

file_name	source file name to stream. Hint tracks will be ignored, all media tracks will be streamed
ip_dest	destination IP address (V4 or V6, unicast or multicast)
port	destination port
loop	whether streaming stops at the end of all tracks or not. If not, RTP TS will continuously be incremented
force_mpeg4	forces usage of MPEG-4 generic (RFC3640) for all streams
path_mtu	maximum RTP packet payload size allowed
ttl	multicast time to live
ifce_addr	IP of the local interface to use (may be NULL)

Returns

new list object

Here is the call graph for this function:

Here is the caller graph for this function:

void gf_isom_streamer_del

(

GF_ISOMRTPStreamer *

streamer

)

Destructs an RTP file streamer

Parameters

streamer

object to destruct

Here is the call graph for this function:

Here is the caller graph for this function: