aboutsummaryrefslogtreecommitdiff
path: root/include/pdp_streaming.h
blob: 6f3f0389fdcd56b4fa0e64d23e30cf62aea978d7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
/*
 * pdp_streaming.h : structure and defines for PDP packet streaming
 * Copyright (C) 2001-2002 Yves Degoyon
 *
 */

/*
 * this is the format of how a packet is transmitted
 * between pdp_o and pdp_i            
 * it starts with a tag to recognize the beginning
 * of a packet, then header informations ( width, height, timestamp )  
 * and, finally, the bz2 compressed data      
 */

#include <time.h>
#include <sys/time.h>

#define TAG_LENGTH 8

#define PDP_PACKET_START "SPDP"
#define PDP_PACKET_TAG PDP_PACKET_START"PAC"
#define PDP_PACKET_DIFF PDP_PACKET_START"DIF"
#define REGULAR 0
#define HUFFMAN 1

typedef struct _hpacket
{
  char tag[TAG_LENGTH];
  int encoding;
  int width;
  int height;
  struct timeval etime; // valid until 2038
  int clength;
} t_hpacket;