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大小: 11.69MB文件類型: .zip金幣: 1下載: 0 次發(fā)布日期: 2023-07-12
- 語言: 其他
- 標(biāo)簽: linuxQTLCD??
資源簡介
本智能家居模擬系統(tǒng)，使用linux作為服務(wù)器操作系統(tǒng)。多線程服務(wù)器，實現(xiàn)了照明、手動調(diào)節(jié)控制環(huán)境狀態(tài)信息，QT遠(yuǎn)程視頻監(jiān)控等功能。代碼俱全
代碼片段和文件信息
/*
?*?camera.c
?*
?*??Created?on:?2017年2月21日
?*??????Author:?farsight
?*/
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?“camera.h“
//#include?“sendPic.h“
struct?VideoBuffer?*buffers;?//一片緩存
int?buffer_num;?//緩存?zhèn)€數(shù)
char?rgbbuf[PICWIDTH?*?PICHEIGHT?*?3];?//RGB緩存
unsigned?char?*rgbdata;//保存一幀rgb數(shù)據(jù)
unsigned?char?*jpegdata;//保存一幀jpeg數(shù)據(jù)
struct?jpeg_compress_struct?jpeg;
struct?jpeg_error_mgr?jerr;
int?picsize;//用于記錄文件大小
void?*pthread_cameraClient（void?*arg）?{
pthread_camera（）;
return?NULL;
}
int?pthread_camera（）?{
//打開攝像頭
if?（0?>?（camfd?=?cam_open（）））?{
perror（“open?camera“）;
return?-1;
}
//初始化攝像頭
cam_init（）;
//分配內(nèi)存
get_memory（）;
//捕獲視頻
while（1）{
capture_video（）;
}
return?0;
}
int?cam_open（）?{
int?fd;
fd?=?open（“/dev/video0“?O_RDWR?0）;
return?fd;
}
int?cam_init（）?{
set_capture_format（）;
set_time_per_frame（）;
return?0;
}
int?set_capture_format（）?{
struct?v4l2_format?fmt;
memset（&fmt?0?sizeof（fmt））;
fmt.type?=?V4L2_BUF_TYPE_VIDEO_CAPTURE;
//設(shè)置圖片大小
fmt.fmt.pix.width?=?PICWIDTH;
fmt.fmt.pix.height?=?PICHEIGHT;
//設(shè)置采集的圖片的格式
fmt.fmt.pix.pixelformat?=?V4L2_PIX_FMT_YUYV;
fmt.fmt.pix.field?=?V4L2_FIELD_INTERLACED;
if?（-1?==?ioctl（camfd?VIDIOC_S_FMT?&fmt））?{
return?-1;
}
return?0;
}
int?set_time_per_frame（）?{
struct?v4l2_streamparm?parm;
memset（&parm?0?sizeof（parm））;
parm.type?=?V4L2_BUF_TYPE_VIDEO_CAPTURE;
parm.parm.capture.timeperframe.numerator?=?1;
parm.parm.capture.timeperframe.denominator?=?TIME_PER_frame;
parm.parm.capture.capturemode?=?V4L2_MODE_HIGHQUALITY;
parm.parm.capture.capability?=?V4L2_CAP_TIMEPERframe;
if?（0?>?ioctl（camfd?VIDIOC_S_PARM?&parm））?{
return?-1;
}
return?0;
}
int?get_memory（）?{
struct?v4l2_requestbuffers?req;
req.count?=?TIME_PER_frame;
req.type?=?V4L2_BUF_TYPE_VIDEO_CAPTURE;?//數(shù)據(jù)流類型:?必須是?V4L2_BUF_TYPE_VIDEO_CAPTURE
req.memory?=?V4L2_MEMORY_MMAP;?//內(nèi)存工作方式?mmap?映射
if?（-1?==?ioctl（camfd?VIDIOC_REQBUFS?&req））?{
return?-1;
}
buffers?=?calloc（req.count?sizeof（VB））;
struct?v4l2_buffer?tmp;
for?（buffer_num?=?0;?buffer_num? memset（&tmp?0?sizeof（tmp））;
tmp.type?=?V4L2_BUF_TYPE_VIDEO_CAPTURE;
tmp.memory?=?V4L2_MEMORY_MMAP;
tmp.index?=?buffer_num;
//讀取緩存
if?（-1?==?ioctl（camfd?VIDIOC_QUERYBUF?&tmp））?{
return?-1;
}
buffers[buffer_num].length?=?tmp.length;
//使用mmap映射轉(zhuǎn)換成相應(yīng)的地址
buffers[buffer_num].start?=?mmap（NULL?tmp.length
PROT_READ?|?PROT_WRITE?MAP_SHARED?camfd?tmp.m.offset）;
if?（buffers[buffer_num].start?==?MAP_FAILED）?{
return?-1;
}
//放入緩存隊列
if?（-1?==?ioctl（camfd?VIDIOC_QBUF?&tmp））?{
return?-1;
}
}
return?0;
}
int?turn_on_video（）?{
enum?v4l2_buf_type?v4l2type?=?V4L2_BUF_TYPE_VIDEO_CAPTURE;
if?（-1?==?ioctl（camfd?VIDIOC_STRE ?屬性????????????大小?????日期????時間???名稱
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?????目錄???????????0??2017-02-24?16:06??AutomaticSprinklerSystem_1.4.2\
?????文件???????13876??2017-02-23?10:34??AutomaticSprinklerSystem_1.4.2\.cproject
?????文件?????????825??2017-02-23?10:06??AutomaticSprinklerSystem_1.4.2\.project
?????目錄???????????0??2017-02-24?16:06??AutomaticSprinklerSystem_1.4.2\.settings\
?????文件????????2088??2017-02-23?10:34??AutomaticSprinklerSystem_1.4.2\.settings\language.settings.xm
?????目錄???????????0??2017-02-24?16:06??AutomaticSprinklerSystem_1.4.2\.svn\
?????文件???????????2??2017-02-23?10:05??AutomaticSprinklerSystem_1.4.2\.svn\entries
?????文件???????????2??2017-02-23?10:05??AutomaticSprinklerSystem_1.4.2\.svn\format
?????目錄???????????0??2017-02-24?16:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\
?????目錄???????????0??2017-02-24?16:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\0c\
?????文件??????????62??2017-02-23?10:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\0c\0c082d90f5daa56c761bfe3e9fb016b0b84fe88b.svn-ba
?????目錄???????????0??2017-02-24?16:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\0f\
?????文件???????10890??2017-02-23?10:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\0f\0f79b9b6627d4abb38d5c6d043175ec041a42e73.svn-ba
?????目錄???????????0??2017-02-24?16:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\11\
?????文件?????????224??2017-02-23?10:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\11\11d76698efe23ac67897e50cabb13f3455541b5f.svn-ba
?????目錄???????????0??2017-02-24?16:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\12\
?????文件?????????589??2017-02-23?10:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\12\12538e9a83348aeef959e73a1542eadcb8d1aabc.svn-ba
?????目錄???????????0??2017-02-24?16:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\15\
?????文件????????2326??2017-02-23?10:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\15\15ba5c27a7854aefab86063deb10baded155f27f.svn-ba
?????目錄???????????0??2017-02-24?16:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\16\
?????文件?????????196??2017-02-23?10:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\16\165bbcfc5cc5b0e8cadb148ec51e2fe9b560a59a.svn-ba
?????目錄???????????0??2017-02-24?16:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\18\
?????文件????????6536??2017-02-23?10:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\18\186a8e777ccf20b0cec9a5aadba36430dbff7598.svn-ba
?????目錄???????????0??2017-02-24?16:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\1e\
?????文件?????????137??2017-02-23?10:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\1e\1ed12e2b729624ed78b72ada2546d234c7e5a88c.svn-ba
?????目錄???????????0??2017-02-24?16:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\22\
?????文件??????798434??2017-02-23?10:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\22\223fa0b83c1259de02c6c04a7c2fc9b97789a595.svn-ba
?????目錄???????????0??2017-02-24?16:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\24\
?????文件????????5459??2017-02-23?10:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\24\24d13bc5cd724a511d88119ed9ebb30c27125712.svn-ba
?????目錄???????????0??2017-02-24?16:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\2b\
?????文件?????????157??2017-02-23?10:06??AutomaticSprinklerSystem_1.4.2\.svn\pristine\2b\2b723b8f21e15fbf12d52d4ddd87e3221aa931fa.svn-ba
............此處省略313個文件信息
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