Revision 0:581241ed8da9, committed 2019-11-25

Comitter:

saeichi

Date:

Mon Nov 25 08:19:58 2019 +0000

Commit message:

camera-pic-xbee;

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/JPEGCamera.cpp	Mon Nov 25 08:19:58 2019 +0000
@@ -0,0 +1,144 @@
+/* Arduino JPEGCamera Library
+ * Copyright 2010 SparkFun Electronic
+ * Written by Ryan Owens
+ * Modified by arms22
+ * Ported to mbed by yamaguch
+ */
+
+#include "JPEGCamera.h"
+
+#define min(x, y) ((x) < (y)) ? (x) : (y)
+
+const int RESPONSE_TIMEOUT = 500;
+const int DATA_TIMEOUT = 1000;
+
+JPEGCamera::JPEGCamera(PinName tx, PinName rx) : Serial(tx, rx) {
+    printf("AA\r\n");
+    baud(38400);
+    state = READY;
+}
+
+bool JPEGCamera::setPictureSize(JPEGCamera::PictureSize size, bool doReset) {
+    char buf[9] = {0x56, 0x00, 0x31, 0x05, 0x04, 0x01, 0x00, 0x19, (char) size};
+    int ret = sendReceive(buf, sizeof buf, 5);
+
+    if (ret == 5 && buf[0] == 0x76) {
+        if (doReset)
+            reset();
+        return true;
+    } else
+        return false;
+}
+
+bool JPEGCamera::isReady() {
+    return state == READY;
+}
+
+bool JPEGCamera::isProcessing() {
+    return state == PROCESSING;
+}
+
+bool JPEGCamera::takePicture(char *filename) {
+    if (state == READY) {
+        fp = fopen(filename, "wb");
+        if (fp != 0) {
+            if (takePicture()) {
+                imageSize = getImageSize();
+                address = 0;
+                state = PROCESSING;
+            } else {
+                fclose(fp);
+                printf("takePicture(%s) failed", filename);
+                state = ERROR;
+            }
+        } else {
+            printf("fopen() failed");
+            state = ERROR;
+        }
+    }
+    return state != ERROR;
+}
+
+bool JPEGCamera::processPicture() {
+    if (state == PROCESSING) {
+        if (address < imageSize) {
+            char data[1024];
+            int size = readData(data, min(sizeof(data), imageSize - address), address);
+            int ret = fwrite(data, size, 1, fp);
+            if (ret > 0)
+                address += size;
+            if (ret == 0 || address >= imageSize) {
+                stopPictures();
+                fclose(fp);
+                wait(0.1); // ????
+                state = ret > 0 ? READY : ERROR;
+            }
+        }
+    }
+
+    return state == PROCESSING || state == READY;
+}
+
+bool JPEGCamera::reset() {
+    char buf[4] = {0x56, 0x00, 0x26, 0x00};
+    int ret = sendReceive(buf, sizeof buf, 4);
+    if (ret == 4 && buf[0] == 0x76) {
+        wait(4.0);
+        state = READY;
+    } else {
+        state = ERROR;
+    }
+    return state == READY;
+}
+
+bool JPEGCamera::takePicture() {
+    char buf[5] = {0x56, 0x00, 0x36, 0x01, 0x00};
+    int ret = sendReceive(buf, sizeof buf, 5);
+
+    return ret == 5 && buf[0] == 0x76;
+}
+
+bool JPEGCamera::stopPictures() {
+    char buf[5] = {0x56, 0x00, 0x36, 0x01, 0x03};
+    int ret = sendReceive(buf, sizeof buf, 5);
+
+    return ret == 4 && buf[0] == 0x76;
+}
+
+int JPEGCamera::getImageSize() {
+    char buf[9] = {0x56, 0x00, 0x34, 0x01, 0x00};
+    int ret = sendReceive(buf, sizeof buf, 9);
+
+    //The size is in the last 2 characters of the response.
+    return (ret == 9 && buf[0] == 0x76) ? (buf[7] << 8 | buf[8]) : 0;
+}
+
+int JPEGCamera::readData(char *dataBuf, int size, int address) {
+    char buf[16] = {0x56, 0x00, 0x32, 0x0C, 0x00, 0x0A, 0x00, 0x00,
+                    address >> 8, address & 255, 0x00, 0x00, size >> 8, size & 255, 0x00, 0x0A
+                   };
+    int ret = sendReceive(buf, sizeof buf, 5);
+
+    return (ret == 5 && buf[0] == 0x76) ? receive(dataBuf, size, DATA_TIMEOUT) : 0;
+}
+
+int JPEGCamera::sendReceive(char *buf, int sendSize, int receiveSize) {
+    while (readable()) getc();
+
+    for (int i = 0; i < sendSize; i++) putc(buf[i]);
+
+    return receive(buf, receiveSize, RESPONSE_TIMEOUT);
+}
+
+int JPEGCamera::receive(char *buf, int size, int timeout) {
+    timer.start();
+    timer.reset();
+
+    int i = 0;
+    while (i < size && timer.read_ms() < timeout) {
+        if (readable())
+            buf[i++] = getc();
+    }
+
+    return i;
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/JPEGCamera.h	Mon Nov 25 08:19:58 2019 +0000
@@ -0,0 +1,122 @@
+
+/* Arduino JPEGCamera Library
+ * Copyright 2010 SparkFun Electronics
+ * Written by Ryan Owens
+ * Modified by arms22
+ * Ported to mbed by yamaguch
+ */
+
+#ifndef JPEG_CAMERA_H
+#define JPEG_CAMERA_H
+
+#include "mbed.h"
+
+/**
+ * Interface for LinkSprite JPEG Camera module LS-Y201
+ */
+class JPEGCamera : public Serial {
+public:
+    /***/
+    enum PictureSize {
+        SIZE160x120 = 0x22,
+        SIZE320x240 = 0x11,
+        SIZE640x480 = 0x00,
+    };
+
+    /**
+     * Create JPEG Camera
+     *
+     * @param tx tx pin
+     * @param rx rx pin
+     */
+    JPEGCamera(PinName tx, PinName rx);
+
+    /**
+     * Set picture size
+     *
+     * @param size picture size (available sizes are SIZE160x120, SIZE320x240, SIZE640x480)
+     * @param doReset flag to perform reset operation after changing size
+     *
+     * @returns true if succeeded, false otherwise
+     */
+    bool setPictureSize(JPEGCamera::PictureSize size, bool doReset = true);
+
+    /**
+     * Return whether camera is ready or not
+     *
+     * @returns true if ready, false otherwise
+     */
+    bool isReady();
+
+    /**
+     * Return whether camera is processing the taken picture or not
+     *
+     * @returns true if the camera is in processing, false otherwise
+     */
+    bool isProcessing();
+
+    /**
+     * Take a picture
+     *
+     * @param filename filename to store the picture data
+     * @returns true if succeeded, false otherwise
+     */
+    bool takePicture(char *filename);
+    /**
+     * Process picture (writing the file)
+     *
+     * @returns true if no error in processing, false otherwise
+     */
+    bool processPicture();
+
+    /**
+     * Perform reset oepration (it takes 4 seconds)
+     *
+     * @returns true if succeeded, false otherwise
+     */
+    bool reset();
+
+    /**
+     * Send a picture command to the camera module
+     *
+     *  @returns true if succeeded, false otherwise
+     */
+    bool takePicture(void);
+
+    /**
+     * Send a stop pictures command to the camera module
+     *
+     *  @returns true if succeeded, false otherwise
+     */
+    bool stopPictures(void);
+
+    /**
+     * Get the picture image size
+     *
+     * @returns the actual image size in bytes
+     */
+    int getImageSize();
+
+    /**
+     * Read the picture data to the buffer
+     *
+     * @param dataBuf data buffer address to store the received data
+     * @param size data size to read
+     * @param address the address of the picture data to read
+     *
+     * @returns the size of the data read
+     */
+    int readData(char *dataBuf, int size, int address);
+
+//private:
+    Timer timer;
+    FILE *fp;
+    int imageSize;
+    int address;
+    enum State {UNKNOWN, READY, PROCESSING, ERROR = -1} state;
+    
+    int sendReceive(char *buf, int sendSize, int receiveSize);
+    int receive(char *buf, int size, int timeout);
+};
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/JPEGCamera.lib	Mon Nov 25 08:19:58 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/teams/cansat_B-2019/code/JPEGCamera/#64b220982d94

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/base64.cpp	Mon Nov 25 08:19:58 2019 +0000
@@ -0,0 +1,180 @@
+#include "base64.h"
+
+const char *base64::szB64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+
+base64::base64() : lpszOutputString(NULL)
+{
+}
+
+base64::~base64()
+{
+    if(lpszOutputString)
+        delete[] lpszOutputString;
+}
+
+const char *base64::Encode(const char *szStr, int iLens)
+{
+    int i,j;
+
+    if(lpszOutputString)
+        delete[] lpszOutputString;
+
+    if(iLens == -1)
+        iLen = strlen(szStr);
+    else
+        iLen = iLens;
+
+    lpszOutputString =
+        new char[(int)((double)(iLen)*1.5)+10];
+    for(i = 0,j = 0; i < (iLen - (iLen % 3)); i+=3)
+    {
+        lpszOutputString[j] = szB64[(szStr[i] & 0xfc) >> 2];
+        lpszOutputString[j+1] = szB64[((szStr[i] &0x03) << 4) |
+                                    ((szStr[i+1] & 0xf0) >> 4)];
+        lpszOutputString[j+2] = szB64[((szStr[i+1] & 0x0f) <<2 ) |
+                                    ((szStr[i+2] & 0xc0) >> 6)];
+        lpszOutputString[j+3] = szB64[(szStr[i+2] & 0x3f)];
+        j += 4;
+    }
+    i = iLen-(iLen % 3);    // 残りのサイズを計算
+    switch(iLen % 3)
+    {
+    case 2: // 1文字分パディングが必要
+    {
+        lpszOutputString[j] = szB64[(szStr[i] & 0xfc) >> 2];
+        lpszOutputString[j+1] = szB64[((szStr[i] &0x03) << 4) |
+                                    ((szStr[i+1] & 0xf0) >> 4)];
+        lpszOutputString[j+2] = szB64[((szStr[i+1] & 0x0f) <<2 )];
+        lpszOutputString[j+3] = szB64[64];  // Pad
+        lpszOutputString[j+4] = '\0';
+    }
+    break;
+    case 1: // 2文字分パディングが必要
+    {
+        lpszOutputString[j] = szB64[(szStr[i] & 0xfc) >> 2];
+        lpszOutputString[j+1] = szB64[((szStr[i] &0x03) << 4)];
+        lpszOutputString[j+2] = szB64[64];  // Pad
+        lpszOutputString[j+3] = szB64[64];  // Pad
+        lpszOutputString[j+4] = '\0';
+    }
+    break;
+    }
+    lpszOutputString[j+4] = '\0';
+
+    return lpszOutputString;
+}
+
+void base64::Encode(istream& istr, ostream& ostr, int iRet)
+{
+    int i;
+    char c[3];
+
+    i = 0;
+    while(!istr.eof())
+    {
+        c[0] = c[1] = c[2] = '\0';
+        istr.read(c,3);
+
+        ostr << szB64[(c[0] & 0xfc) >> 2];
+        i++;    if(i >= iRet && iRet != -1){ ostr << endl; i = 0; }
+        ostr << szB64[((c[0] &0x03) << 4) | ((c[1] & 0xf0) >> 4)];
+        i++;    if(i >= iRet && iRet != -1){ ostr << endl; i = 0; }
+        if(istr.gcount() == 1)
+            ostr << szB64[64];
+        else
+            ostr << szB64[((c[1] & 0x0f) <<2 ) | ((c[2] & 0xc0) >> 6)];
+        i++;    if(i >= iRet && iRet != -1){ ostr << endl; i = 0; }
+        if(istr.gcount() == 3)
+            ostr << szB64[(c[2] & 0x3f)];
+        else
+            ostr << szB64[64];
+        i++;    if(i >= iRet && iRet != -1){ ostr << endl; i = 0; }
+    }
+    ostr.flush();
+}
+
+
+int base64::FindIndexInB64(char c)
+{
+    int index = 0;
+    while(szB64[index] != '\0' && szB64[index] != c)
+        index++;
+
+    if(szB64[index] == '\0')
+        return -1;  // 見つからず
+
+    return index;   // 見つかった。
+}
+
+const char *base64::Decode(const char *szStr)
+{
+    //lpszOutputString
+    int i, j, l,iWriteCount,len;
+    char c;
+    char buf[4];
+
+    len = iLen = strlen(szStr);
+    if(lpszOutputString)
+        delete[] lpszOutputString;
+
+    iLen = (int)(((double)(iLen)/4.0)*3.0) + 4;
+
+    lpszOutputString = new char[iLen];
+
+    for(i = 0, j = 0; i < len; i+=4)
+    {
+        iWriteCount = 3;
+        for(l = 0; l < 4 && i+l<len; l++)
+        {
+            c = szStr[i+l];
+            if(c == szB64[64])  // Pad
+                iWriteCount--;
+            else {
+                buf[l] = FindIndexInB64(c);
+                //if(buf[l] == -1) error!;
+            }
+        }
+        lpszOutputString[j] = ((buf[0] << 2) & 0xfc) | ((buf[1] >> 4) & 0x03);
+        if(iWriteCount >= 2)
+            lpszOutputString[j+1] = ((buf[1] << 4) & 0xf0) | ((buf[2] >> 2) & 0x0f);
+        if(iWriteCount == 3)
+            lpszOutputString[j+2] = ((buf[2] << 6) & 0xc0) | (buf[3] & 0x3f);
+        j+=iWriteCount;
+    }
+    iLen = j;
+    lpszOutputString[j] = '\0';
+
+    return lpszOutputString;
+}
+
+void base64::Decode(istream& istr, ostream& ostr)
+{
+    int i,iWriteCount;
+    char c;
+    char buf[4];
+    char out[3];
+
+    while(1)
+    {
+        iWriteCount = 3;
+        for(i = 0; i < 4; i++)
+        {
+            istr >> c;
+            if(istr.eof())
+            {
+                ostr.flush();
+                return;
+            }
+            if(c == szB64[64])  // Pad
+                iWriteCount--;
+            else {
+                buf[i] = FindIndexInB64(c);
+                //if(buf[i] == -1) error!;
+            }
+        }
+        out[0] = ((buf[0] << 2) & 0xfc) | ((buf[1] >> 4) & 0x03);
+        out[1] = ((buf[1] << 4) & 0xf0) | ((buf[2] >> 2) & 0x0f);
+        out[2] = ((buf[2] << 6) & 0xc0) | (buf[3] & 0x3f);
+        ostr.write(out, iWriteCount);
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/base64.h	Mon Nov 25 08:19:58 2019 +0000
@@ -0,0 +1,45 @@
+#if !defined BASE64_H_INC_
+#define BASE64_H_INC_
+
+#include <string.h>
+#include <iostream>
+#include <fstream>
+
+using namespace std;
+
+// Base64 Encodeing
+class base64
+{
+    int iLen;
+    char *lpszOutputString; // 結果出力先
+    static const char *szB64; // Base64変換テーブル
+
+    static int FindIndexInB64(char c);//szB64の Base64変換テーブルのなかの、どれか、探し出す。ない場合、-1
+public:
+    base64();
+    ~base64();
+    const char *Encode(const char *szStr, int iLens = -1);  // エンコード(文字列用)。ただし、データの長さを指定すれば、バイナリデータが可能
+    const char *Decode(const char *szStr);  // デコード(文字列用)
+    int GetLenght() const { return iLen; }  // 出力された長さ
+    const char *Get() const { return lpszOutputString; }    // 文字列用の結果を取得
+
+    static void Encode(istream& istr, ostream& ostr, int iRet = 76);    // istrはバイナリストリーム推奨
+        // エンコード(ストリーム用) iRetは、何文字目で改行するか。-1なら、改行しない。
+    static void Decode(istream& istr, ostream& ostr);   // ostrはバイナリストリーム推奨
+        // デコード(ストリーム用)
+
+    static void Encode(const char *lpszImputFileName, const char *lpszOutputFileName, int iRet = 76)
+    {
+        ifstream f(lpszImputFileName,ios::in | ios::binary);
+        ofstream of(lpszOutputFileName);
+        Encode(f,of);
+    }
+    static void Decode(const char *lpszImputFileName, const char *lpszOutputFileName)
+    {
+        ifstream f(lpszImputFileName);
+        ofstream of(lpszOutputFileName,ios::out | ios::trunc | ios::binary);
+        Decode(f,of);
+    }
+};
+
+#endif // #if !defined BASE64_H_INC_

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Nov 25 08:19:58 2019 +0000
@@ -0,0 +1,55 @@
+#include "mbed.h"
+#include "JPEGCamera.h"
+#include <stdio.h>
+#include <base64.h>
+
+LocalFileSystem local("local");
+
+Serial pc(USBTX,USBRX);
+JPEGCamera camera(p9,p10);//TX,RX
+Serial xbee(p13,p14);
+
+int main(){
+    
+    Timer timer;
+    timer.start();
+    camera.setPictureSize(JPEGCamera::SIZE320x240);
+
+    FILE *fp;
+    base64 *bs;
+    int c;
+    
+    for (int i = 0; i < 1; i++) {
+        if (camera.isReady()) {
+            char filename[32];
+            sprintf(filename, "/local/pict%03d.jpg",i);
+            printf("Picture: %s ",filename);
+            if (camera.takePicture(filename)) {
+                while (camera.isProcessing()) {
+                    camera.processPicture();
+                }
+            } else {
+                printf("take picture failed\r\n");
+            }
+        } else {
+            printf("camera is not ready\r\n");
+        }
+    }
+    printf("time = %f\n", timer.read());
+    
+        
+    xbee.printf("xbee connected!\r\n");
+    bs = new base64();
+    bs->Encode("/local/PICT000.jpg","/local/d.txt");
+        
+        
+    if((fp=fopen("/local/d.txt","r"))!=NULL)
+    {
+        while ((c=fgetc(fp))!=EOF){
+            xbee.printf("%c",c);
+        }
+        fclose(fp);
+    }
+    return 0;
+}
+    

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Mon Nov 25 08:19:58 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400
\ No newline at end of file