lws-rtp.h File Reference

Go to the source code of this file.

Data Structures
struct	lws_rtp_ctx

Macros
#define	LWS_RTP_VIDEO_WIDTH_1080P   1920
#define	LWS_RTP_VIDEO_HEIGHT_1080P   1080
#define	LWS_RTP_VIDEO_WIDTH_720P   1280
#define	LWS_RTP_VIDEO_HEIGHT_720P   720
#define	LWS_RTP_VIDEO_WIDTH_360P   640
#define	LWS_RTP_VIDEO_HEIGHT_360P   360
#define	LWS_RTP_MTU_DEFAULT   1200
#define	LWS_RTP_AUDIO_SAMPLE_RATE   48000
#define	LWS_RTP_AUDIO_CHANNELS   2
#define	LWS_RTP_PT_OPUS   111
#define	LWS_RTP_PT_H264   126
#define	LWS_RTP_HEADER_LEN   12

Typedefs
typedef void(*	lws_rtp_cb_t) (void *priv, const uint8_t *pkt, size_t len, int marker)

Functions
LWS_VISIBLE LWS_EXTERN void	lws_rtp_init (struct lws_rtp_ctx *ctx, uint32_t ssrc, uint8_t pt)
LWS_VISIBLE LWS_EXTERN void	lws_rtp_write_header (struct lws_rtp_ctx *ctx, uint8_t *buf, int marker)
LWS_VISIBLE LWS_EXTERN int	lws_rtp_h264_packetize (struct lws_rtp_ctx *ctx, const uint8_t *nal, size_t len, int last_nal, size_t mtu, lws_rtp_cb_t cb, void *priv)
LWS_VISIBLE LWS_EXTERN int	lws_rtp_av1_packetize (struct lws_rtp_ctx *ctx, const uint8_t *obu, size_t len, int last_obu, size_t mtu, lws_rtp_cb_t cb, void *priv)

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Data Structure Documentation

lws_rtp_ctx

struct lws_rtp_ctx

Definition at line 49 of file lws-rtp.h.

Collaboration diagram for lws_rtp_ctx:

Data Fields
uint32_t	ssrc
uint32_t	ts
uint32_t	last_ts
uint16_t	seq
uint8_t	pt
uint8_t	new_frame

Macro Definition Documentation

LWS_RTP_VIDEO_WIDTH_1080P

#define LWS_RTP_VIDEO_WIDTH_1080P   1920

Definition at line 29 of file lws-rtp.h.

LWS_RTP_VIDEO_HEIGHT_1080P

#define LWS_RTP_VIDEO_HEIGHT_1080P   1080

Definition at line 30 of file lws-rtp.h.

LWS_RTP_VIDEO_WIDTH_720P

#define LWS_RTP_VIDEO_WIDTH_720P   1280

Definition at line 31 of file lws-rtp.h.

LWS_RTP_VIDEO_HEIGHT_720P

#define LWS_RTP_VIDEO_HEIGHT_720P   720

Definition at line 32 of file lws-rtp.h.

LWS_RTP_VIDEO_WIDTH_360P

#define LWS_RTP_VIDEO_WIDTH_360P   640

Definition at line 33 of file lws-rtp.h.

LWS_RTP_VIDEO_HEIGHT_360P

#define LWS_RTP_VIDEO_HEIGHT_360P   360

Definition at line 34 of file lws-rtp.h.

LWS_RTP_MTU_DEFAULT

#define LWS_RTP_MTU_DEFAULT   1200

Definition at line 36 of file lws-rtp.h.

LWS_RTP_AUDIO_SAMPLE_RATE

#define LWS_RTP_AUDIO_SAMPLE_RATE   48000

Definition at line 39 of file lws-rtp.h.

LWS_RTP_AUDIO_CHANNELS

#define LWS_RTP_AUDIO_CHANNELS   2

Definition at line 40 of file lws-rtp.h.

LWS_RTP_PT_OPUS

#define LWS_RTP_PT_OPUS   111

Definition at line 43 of file lws-rtp.h.

LWS_RTP_PT_H264

#define LWS_RTP_PT_H264   126

Definition at line 44 of file lws-rtp.h.

LWS_RTP_HEADER_LEN

#define LWS_RTP_HEADER_LEN   12

Definition at line 47 of file lws-rtp.h.

Typedef Documentation

lws_rtp_cb_t

typedef void(* lws_rtp_cb_t) (void *priv, const uint8_t *pkt, size_t len, int marker)

Definition at line 58 of file lws-rtp.h.

Function Documentation

lws_rtp_init()

LWS_VISIBLE LWS_EXTERN void lws_rtp_init	(	struct lws_rtp_ctx *	ctx,
		uint32_t	ssrc,
		uint8_t	pt )

lws_rtp_init() - Initialize RTP context

Parameters

ctx	RTP context to initialize
ssrc	SSRC for this stream
pt	Payload type

References LWS_EXTERN, and LWS_VISIBLE.

lws_rtp_write_header()

LWS_VISIBLE LWS_EXTERN void lws_rtp_write_header	(	struct lws_rtp_ctx *	ctx,
		uint8_t *	buf,
		int	marker )

lws_rtp_write_header() - Write RTP header to buffer

Parameters

ctx	RTP context
buf	Buffer to write header to (must be at least LWS_RTP_HEADER_LEN)
marker	Marker bit

Updates sequence number in context.

References LWS_EXTERN, and LWS_VISIBLE.

lws_rtp_h264_packetize()

LWS_VISIBLE LWS_EXTERN int lws_rtp_h264_packetize	(	struct lws_rtp_ctx *	ctx,
		const uint8_t *	nal,
		size_t	len,
		int	last_nal,
		size_t	mtu,
		lws_rtp_cb_t	cb,
		void *	priv )

lws_rtp_h264_packetize() - Fragment H.264 NALU into RTP packets

Parameters

ctx	RTP context
nal	NALU data (excluding start code)
len	NALU length
last_nal	true if this is the last NALU of the frame
mtu	MTU for the transport
cb	Callback for each generated packet
priv	Private pointer for callback

Handles FU-A fragmentation if NALU exceeds MTU.

References LWS_EXTERN, and LWS_VISIBLE.

lws_rtp_av1_packetize()

LWS_VISIBLE LWS_EXTERN int lws_rtp_av1_packetize	(	struct lws_rtp_ctx *	ctx,
		const uint8_t *	obu,
		size_t	len,
		int	last_obu,
		size_t	mtu,
		lws_rtp_cb_t	cb,
		void *	priv )