rtp.c File Reference

#include <stdint.h>
#include <string.h>
#include <sys/time.h>
#include "rtp.h"

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Macros
#define	KJpegCh1ScanDataLen   32
#define	KJpegCh2ScanDataLen   56
#define	MAX_PACKET_SIZE   1400
#define	KRtpHeaderSize   12
#define	KJpegHeaderSize   8

Functions
static void	rtp_packet_send (struct UdpSocket *udp, uint8_t *Jpeg, int JpegLen, uint16_t m_SequenceNumber, uint32_t m_Timestamp, uint32_t m_offset, uint8_t marker_bit, int w, int h, uint8_t format_code, uint8_t quality_code, uint8_t has_dri_header)
void	rtp_frame_test (struct UdpSocket *udp)
	Send a test RTP frame. More...
void	rtp_frame_send (struct UdpSocket *udp, struct image_t *img, uint8_t format_code, uint8_t quality_code, uint8_t has_dri_header, float average_frame_rate, uint16_t *packet_number, uint32_t *rtp_time_counter)
	Send an RTP frame. More...

Variables
uint8_t	JpegScanDataCh2A [KJpegCh2ScanDataLen]
uint8_t	JpegScanDataCh2B [KJpegCh2ScanDataLen]

Detailed Description

Encodes a vide stream with RTP (JPEG)

Definition in file rtp.c.

Macro Definition Documentation

KJpegCh1ScanDataLen

#define KJpegCh1ScanDataLen   32

Definition at line 68 of file rtp.c.

KJpegCh2ScanDataLen

#define KJpegCh2ScanDataLen   56

Definition at line 69 of file rtp.c.

KJpegHeaderSize

#define KJpegHeaderSize   8

KRtpHeaderSize

#define KRtpHeaderSize   12

MAX_PACKET_SIZE

#define MAX_PACKET_SIZE   1400

Function Documentation

rtp_frame_send()

void rtp_frame_send	(	struct UdpSocket *	udp,
		struct image_t *	img,
		uint8_t	format_code,
		uint8_t	quality_code,
		uint8_t	has_dri_header,
		float	average_frame_rate,
		uint16_t *	packet_number,
		uint32_t *	rtp_time_counter
	)

Send an RTP frame.

Parameters

[in]	*udp	The UDP connection to send the frame over
[in]	*img	The image to send over the RTP connection
[in]	format_code	0 for YUV422 and 1 for YUV421
[in]	quality_code	The JPEG encoding quality
[in]	has_dri_header	Whether we have an DRI header or not
[in]	frame_time	Time image was taken in usec (if set to 0 or less it is calculated)
[out]	packet_number	The frame number of the rtp stream
[out]	rtp_time_counter	The frame time counter of the rtp stream

Definition at line 127 of file rtp.c.

References image_t::buf, image_t::buf_size, f, image_t::h, MAX_PACKET_SIZE, offset, rtp_packet_send(), and image_t::w.

Referenced by viewvideo_function().

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rtp_frame_test()

void rtp_frame_test

(

struct UdpSocket *

udp

)

Send a test RTP frame.

Parameters

[in]

*udp

The udp connection to send the test frame over

Definition at line 95 of file rtp.c.

References JpegScanDataCh2A, JpegScanDataCh2B, KJpegCh2ScanDataLen, and rtp_packet_send().

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rtp_packet_send()

static void rtp_packet_send ( struct UdpSocket *  udp, uint8_t *  Jpeg, int  JpegLen, uint16_t  m_SequenceNumber, uint32_t  m_Timestamp, uint32_t  m_offset, uint8_t  marker_bit, int  w, int  h, uint8_t  format_code, uint8_t  quality_code, uint8_t  has_dri_header  )

static

Definition at line 177 of file rtp.c.

References h(), KJpegHeaderSize, KRtpHeaderSize, and udp_socket_send_dontwait().

Referenced by rtp_frame_send(), and rtp_frame_test().

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Variable Documentation

JpegScanDataCh2A

uint8_t JpegScanDataCh2A[KJpegCh2ScanDataLen]

Initial value:

= {
  0xf8, 0xbe, 0x8a, 0x28, 0xaf, 0xe5, 0x33, 0xfd,
  0xfc, 0x0a, 0x28, 0xa2, 0x80, 0x0a, 0x28, 0xa2,
  0x80, 0x0a, 0x28, 0xa2, 0x80, 0x0a, 0x28, 0xa2,
  0x80, 0x0a, 0x28, 0xa2, 0x80, 0x0a, 0x28, 0xa2,
  0x80, 0x0a, 0x28, 0xa2, 0x80, 0x0a, 0x28, 0xa2,
  0x80, 0x0a, 0x28, 0xa2, 0x80, 0x0a, 0x28, 0xa2,
  0x80, 0x0a, 0x28, 0xa2, 0x80, 0x3f, 0xff, 0xd9
}

Definition at line 72 of file rtp.c.

Referenced by rtp_frame_test().

JpegScanDataCh2B

uint8_t JpegScanDataCh2B[KJpegCh2ScanDataLen]

Initial value:

= {
  0xf5, 0x8a, 0x28, 0xa2, 0xbf, 0xca, 0xf3, 0xfc,
  0x53, 0x0a, 0x28, 0xa2, 0x80, 0x0a, 0x28, 0xa2,
  0x80, 0x0a, 0x28, 0xa2, 0x80, 0x0a, 0x28, 0xa2,
  0x80, 0x0a, 0x28, 0xa2, 0x80, 0x0a, 0x28, 0xa2,
  0x80, 0x0a, 0x28, 0xa2, 0x80, 0x0a, 0x28, 0xa2,
  0x80, 0x0a, 0x28, 0xa2, 0x80, 0x0a, 0x28, 0xa2,
  0x80, 0x0a, 0x28, 0xa2, 0x80, 0x3f, 0xff, 0xd9
}

Definition at line 81 of file rtp.c.

Referenced by rtp_frame_test().