mirror of
https://gitee.com/js-yhsec/energy_storage.git
synced 2026-05-27 18:59:26 +08:00
99 lines
3.3 KiB
C
99 lines
3.3 KiB
C
|
/***************************************************************************
|
||
|
|
rlwebcam.h - description
|
||
|
|
-------------------
|
||
|
|
begin : Mo Aug 24 2009
|
||
|
|
copyright : (C) 2009 by R. Lehrig
|
||
|
|
email : lehrig@t-online.de
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
/***************************************************************************
|
||
|
|
* *
|
||
|
|
* This library is free software; you can redistribute it and/or modify *
|
||
|
|
* it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE as *
|
||
|
|
* published by the Free Software Foundation *
|
||
|
|
* *
|
||
|
|
***************************************************************************/
|
||
|
|
#ifndef _RL_WEBCAM_H_
|
||
|
|
#define _RL_WEBCAM_H_
|
||
|
|
|
||
|
|
#include "rldefine.h"
|
||
|
|
#include "rlsocket.h"
|
||
|
|
#include "rlstring.h"
|
||
|
|
|
||
|
|
/*! <pre>
|
||
|
|
class for handling networked webcams over http:// that use motion jpeg
|
||
|
|
|
||
|
|
If you do not know under which URL your webcam provides the M-JPEG video stream
|
||
|
|
you may use tcpdump to figure it out.
|
||
|
|
|
||
|
|
Example:
|
||
|
|
|
||
|
|
tcpdump -X -i eth0 -t -q -s 0 "host 192.168.1.200 && port 80" | grep -A 10 GET
|
||
|
|
|
||
|
|
IP myhost.46727 > 192.168.1.200.http: tcp 97
|
||
|
|
0x0000: 4500 0089 edb6 4000 4006 c891 c0a8 010e E.....@.@.......
|
||
|
|
0x0010: c0a8 01c8 b687 0050 d99f 8b7d 0003 d5b2 .......P...}....
|
||
|
|
0x0020: 5018 16d0 2460 0000 4745 5420 2f63 6769 P...$`..GET./cgi
|
||
|
|
0x0030: 2d62 696e 2f53 7472 6561 6d3f 5669 6465 -bin/Stream?Vide
|
||
|
|
0x0040: 6f20 4175 7468 6f72 697a 6174 696f 6e3a o.Authorization:
|
||
|
|
0x0050: 2042 6173 6963 2059 5752 7461 5734 3663 .Basic.YWRtaW46c
|
||
|
|
0x0060: 4746 7a63 3364 7663 6d51 3d3f 7765 6263 GFzc3dvcmQ=?webc
|
||
|
|
0x0070: 616d 5057 443d 526f 6f74 436f 6f6b 6965 amPWD=RootCookie
|
||
|
|
0x0080: 3030 3030 300d 0a0d 0a 00000....
|
||
|
|
|
||
|
|
Usage example for pvbrowser slot functions:
|
||
|
|
|
||
|
|
#include "rlwebcam.h"
|
||
|
|
|
||
|
|
typedef struct // (todo: define your data structure here)
|
||
|
|
{
|
||
|
|
rlWebcam webcamBig;
|
||
|
|
}
|
||
|
|
DATA;
|
||
|
|
|
||
|
|
static int slotInit(PARAM *p, DATA *d)
|
||
|
|
{
|
||
|
|
if(p == NULL || d == NULL) return -1;
|
||
|
|
p->sleep = 20;
|
||
|
|
p->force_null_event = 0;
|
||
|
|
d->webcamBig.debug = 0;
|
||
|
|
d->webcamBig.filename.printf("%swebcam.jpg", p->file_prefix);
|
||
|
|
d->webcamBig.setUrl("http://192.168.1.200/cgi-bin/Stream?Video Authorization: Basic YWRtaW46cGFzc3dvcmQ=?webcamPWD=RootCookie00000");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int slotNullEvent(PARAM *p, DATA *d)
|
||
|
|
{
|
||
|
|
if(p == NULL || d == NULL) return -1;
|
||
|
|
if(const char *fname = d->webcamBig.getFrame()) // OR if(const char *fname = d->webcamBig.getSnapshot())
|
||
|
|
{
|
||
|
|
pvDownloadFileAs(p,fname,"webcam.jpg");
|
||
|
|
pvSetImage(p,WebcamBig,"webcam.jpg"); // WebcamBig is a pvQImage object that accepts jpeg images
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
</pre> */
|
||
|
|
class rlWebcam
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
rlWebcam();
|
||
|
|
virtual ~rlWebcam();
|
||
|
|
int setUrl(const char *url);
|
||
|
|
int disconnect();
|
||
|
|
const char *getSnapshot(int timeout=3000);
|
||
|
|
const char *getFrame(int timeout=3000, int requestOnly=0);
|
||
|
|
int getFrameBuffer(unsigned char *buffer, int maxbuffer, int timeout=3000);
|
||
|
|
const char *getUrl();
|
||
|
|
const char *getHost();
|
||
|
|
int getPort();
|
||
|
|
const char *getPath();
|
||
|
|
int debug;
|
||
|
|
rlString filename;
|
||
|
|
rlSocket *sock;
|
||
|
|
|
||
|
|
private:
|
||
|
|
rlString url, temp1, temp2, temp3;
|
||
|
|
};
|
||
|
|
#endif
|