Axeda Corp / Mbed 2 deprecated AxedaGo-Freescal_FRDM-KL46Z

Axeda Ready Demo for Freescale FRDM-KL46Z as accident alert system

Dependencies:   FRDM_MMA8451Q KL46Z-USBHost MAG3110 SocketModem TSI mbed FATFileSystem

Fork of AxedaGo-Freescal_FRDM-KL46Z by Axeda Corp

KL46Z_USBHostC270/decodeMJPEG.cpp@2:2f9019c5a9fc, 2014-07-02 (annotated)

Committer:
AxedaCorp
Date:
Wed Jul 02 19:57:37 2014 +0000
Revision:
2:2f9019c5a9fc
Parent:
0:65004368569c 
ip switch

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AxedaCorp 0:65004368569c 1 // decodeMJPEG.cpp 2012/12/8
AxedaCorp 0:65004368569c 2 // decode motion-jpeg to jpeg
AxedaCorp 0:65004368569c 3 #include "mbed.h"
AxedaCorp 0:65004368569c 4 #include "decodeMJPEG.h"
AxedaCorp 0:65004368569c 5
AxedaCorp 0:65004368569c 6 #define MARK_SOF0 0xc0
AxedaCorp 0:65004368569c 7 #define MARK_DHT 0xc4
AxedaCorp 0:65004368569c 8 #define MARK_RST0 0xd0
AxedaCorp 0:65004368569c 9 #define MARK_RST7 0xd7
AxedaCorp 0:65004368569c 10 #define MARK_SOI 0xd8
AxedaCorp 0:65004368569c 11 #define MARK_EOI 0xd9
AxedaCorp 0:65004368569c 12 #define MARK_SOS 0xda
AxedaCorp 0:65004368569c 13 #define MARK_DQT 0xdb
AxedaCorp 0:65004368569c 14 #define MARK_DRI 0xdd
AxedaCorp 0:65004368569c 15 #define MARK_APP 0xe0
AxedaCorp 0:65004368569c 16
AxedaCorp 0:65004368569c 17 #define SEQ_INIT 0
AxedaCorp 0:65004368569c 18 #define SEQ_SOI 1
AxedaCorp 0:65004368569c 19 #define SEQ_FRAME 2
AxedaCorp 0:65004368569c 20 #define SEQ_MARK 3
AxedaCorp 0:65004368569c 21 #define SEQ_SEG_LEN 4
AxedaCorp 0:65004368569c 22 #define SEQ_SEG_LEN2 5
AxedaCorp 0:65004368569c 23 #define SEQ_SEG_BODY 6
AxedaCorp 0:65004368569c 24 #define SEQ_SOS 7
AxedaCorp 0:65004368569c 25 #define SEQ_SOS2 8
AxedaCorp 0:65004368569c 26
AxedaCorp 0:65004368569c 27 static const uint8_t dht[] = {
AxedaCorp 0:65004368569c 28 0xFF,0xC4,0x01,0xA2,0x00,0x00,0x01,0x05,0x01,0x01,0x01,0x01,0x01,0x01,0x00,0x00,
AxedaCorp 0:65004368569c 29 0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,
AxedaCorp 0:65004368569c 30 0x0B,0x01,0x00,0x03,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x00,0x00,0x00,
AxedaCorp 0:65004368569c 31 0x00,0x00,0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x10,0x00,
AxedaCorp 0:65004368569c 32 0x02,0x01,0x03,0x03,0x02,0x04,0x03,0x05,0x05,0x04,0x04,0x00,0x00,0x01,0x7D,0x01,
AxedaCorp 0:65004368569c 33 0x02,0x03,0x00,0x04,0x11,0x05,0x12,0x21,0x31,0x41,0x06,0x13,0x51,0x61,0x07,0x22,
AxedaCorp 0:65004368569c 34 0x71,0x14,0x32,0x81,0x91,0xA1,0x08,0x23,0x42,0xB1,0xC1,0x15,0x52,0xD1,0xF0,0x24,
AxedaCorp 0:65004368569c 35 0x33,0x62,0x72,0x82,0x09,0x0A,0x16,0x17,0x18,0x19,0x1A,0x25,0x26,0x27,0x28,0x29,
AxedaCorp 0:65004368569c 36 0x2A,0x34,0x35,0x36,0x37,0x38,0x39,0x3A,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4A,
AxedaCorp 0:65004368569c 37 0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5A,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,
AxedaCorp 0:65004368569c 38 0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,
AxedaCorp 0:65004368569c 39 0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,
AxedaCorp 0:65004368569c 40 0xA9,0xAA,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xC2,0xC3,0xC4,0xC5,0xC6,
AxedaCorp 0:65004368569c 41 0xC7,0xC8,0xC9,0xCA,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xE1,0xE2,0xE3,
AxedaCorp 0:65004368569c 42 0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,
AxedaCorp 0:65004368569c 43 0xFA,0x11,0x00,0x02,0x01,0x02,0x04,0x04,0x03,0x04,0x07,0x05,0x04,0x04,0x00,0x01,
AxedaCorp 0:65004368569c 44 0x02,0x77,0x00,0x01,0x02,0x03,0x11,0x04,0x05,0x21,0x31,0x06,0x12,0x41,0x51,0x07,
AxedaCorp 0:65004368569c 45 0x61,0x71,0x13,0x22,0x32,0x81,0x08,0x14,0x42,0x91,0xA1,0xB1,0xC1,0x09,0x23,0x33,
AxedaCorp 0:65004368569c 46 0x52,0xF0,0x15,0x62,0x72,0xD1,0x0A,0x16,0x24,0x34,0xE1,0x25,0xF1,0x17,0x18,0x19,
AxedaCorp 0:65004368569c 47 0x1A,0x26,0x27,0x28,0x29,0x2A,0x35,0x36,0x37,0x38,0x39,0x3A,0x43,0x44,0x45,0x46,
AxedaCorp 0:65004368569c 48 0x47,0x48,0x49,0x4A,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5A,0x63,0x64,0x65,0x66,
AxedaCorp 0:65004368569c 49 0x67,0x68,0x69,0x6A,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0x82,0x83,0x84,0x85,
AxedaCorp 0:65004368569c 50 0x86,0x87,0x88,0x89,0x8A,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0xA2,0xA3,
AxedaCorp 0:65004368569c 51 0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,
AxedaCorp 0:65004368569c 52 0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,
AxedaCorp 0:65004368569c 53 0xD9,0xDA,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xF2,0xF3,0xF4,0xF5,0xF6,
AxedaCorp 0:65004368569c 54 0xF7,0xF8,0xF9,0xFA,
AxedaCorp 0:65004368569c 55 };
AxedaCorp 0:65004368569c 56
AxedaCorp 0:65004368569c 57 decodeMJPEG::decodeMJPEG()
AxedaCorp 0:65004368569c 58 {
AxedaCorp 0:65004368569c 59 m_seq = SEQ_INIT;
AxedaCorp 0:65004368569c 60 }
AxedaCorp 0:65004368569c 61
AxedaCorp 0:65004368569c 62 void decodeMJPEG::inputPacket(const uint8_t* buf, int len)
AxedaCorp 0:65004368569c 63 {
AxedaCorp 0:65004368569c 64 for(int i = 12; i < len; i++) {
AxedaCorp 0:65004368569c 65 input(buf[i]);
AxedaCorp 0:65004368569c 66 }
AxedaCorp 0:65004368569c 67 }
AxedaCorp 0:65004368569c 68
AxedaCorp 0:65004368569c 69 void decodeMJPEG::input(uint8_t c)
AxedaCorp 0:65004368569c 70 {
AxedaCorp 0:65004368569c 71 switch(m_seq) {
AxedaCorp 0:65004368569c 72 case SEQ_INIT:
AxedaCorp 0:65004368569c 73 if (c == 0xff) {
AxedaCorp 0:65004368569c 74 m_seq = SEQ_SOI;
AxedaCorp 0:65004368569c 75 }
AxedaCorp 0:65004368569c 76 break;
AxedaCorp 0:65004368569c 77 case SEQ_SOI:
AxedaCorp 0:65004368569c 78 if (c == MARK_SOI) {
AxedaCorp 0:65004368569c 79 outputJPEG(0xff, JPEG_START); // start
AxedaCorp 0:65004368569c 80 outputJPEG(c);
AxedaCorp 0:65004368569c 81 m_bDHT = false;
AxedaCorp 0:65004368569c 82 m_seq = SEQ_FRAME;
AxedaCorp 0:65004368569c 83 } else {
AxedaCorp 0:65004368569c 84 m_seq = SEQ_INIT;
AxedaCorp 0:65004368569c 85 }
AxedaCorp 0:65004368569c 86 break;
AxedaCorp 0:65004368569c 87 case SEQ_FRAME:
AxedaCorp 0:65004368569c 88 if (c == 0xff) {
AxedaCorp 0:65004368569c 89 m_seq = SEQ_MARK;
AxedaCorp 0:65004368569c 90 } else {
AxedaCorp 0:65004368569c 91 m_seq = SEQ_INIT;
AxedaCorp 0:65004368569c 92 }
AxedaCorp 0:65004368569c 93 break;
AxedaCorp 0:65004368569c 94 case SEQ_MARK:
AxedaCorp 0:65004368569c 95 if (c == MARK_SOI || c == MARK_EOI || c == 0x00) {
AxedaCorp 0:65004368569c 96 m_seq = SEQ_INIT;
AxedaCorp 0:65004368569c 97 break;
AxedaCorp 0:65004368569c 98 }
AxedaCorp 0:65004368569c 99 m_mark = c;
AxedaCorp 0:65004368569c 100 m_seq = SEQ_SEG_LEN;
AxedaCorp 0:65004368569c 101 break;
AxedaCorp 0:65004368569c 102 case SEQ_SEG_LEN:
AxedaCorp 0:65004368569c 103 m_seg_len = c;
AxedaCorp 0:65004368569c 104 m_seq = SEQ_SEG_LEN2;
AxedaCorp 0:65004368569c 105 break;
AxedaCorp 0:65004368569c 106 case SEQ_SEG_LEN2:
AxedaCorp 0:65004368569c 107 m_seg_len <<= 8;
AxedaCorp 0:65004368569c 108 m_seg_len |= c;
AxedaCorp 0:65004368569c 109 m_seg_len -= 2;
AxedaCorp 0:65004368569c 110 m_seg_pos = 0;
AxedaCorp 0:65004368569c 111 m_seq = SEQ_SEG_BODY;
AxedaCorp 0:65004368569c 112 if (m_mark == MARK_SOS) {
AxedaCorp 0:65004368569c 113 if (m_bDHT == false) {
AxedaCorp 0:65004368569c 114 for(int i = 0; i < sizeof(dht); i++) {
AxedaCorp 0:65004368569c 115 outputJPEG(dht[i]);
AxedaCorp 0:65004368569c 116 }
AxedaCorp 0:65004368569c 117 }
AxedaCorp 0:65004368569c 118 m_output_desable = false;
AxedaCorp 0:65004368569c 119 } else if (m_mark == MARK_DHT) {
AxedaCorp 0:65004368569c 120 m_bDHT = true;
AxedaCorp 0:65004368569c 121 m_output_desable = false;
AxedaCorp 0:65004368569c 122 } else {
AxedaCorp 0:65004368569c 123 m_output_desable = false;
AxedaCorp 0:65004368569c 124 }
AxedaCorp 0:65004368569c 125 if (!m_output_desable) {
AxedaCorp 0:65004368569c 126 outputJPEG(0xff);
AxedaCorp 0:65004368569c 127 outputJPEG(m_mark);
AxedaCorp 0:65004368569c 128 outputJPEG((m_seg_len+2) >> 8);
AxedaCorp 0:65004368569c 129 outputJPEG((m_seg_len+2) & 0xff);
AxedaCorp 0:65004368569c 130 }
AxedaCorp 0:65004368569c 131 break;
AxedaCorp 0:65004368569c 132 case SEQ_SEG_BODY:
AxedaCorp 0:65004368569c 133 if (!m_output_desable) {
AxedaCorp 0:65004368569c 134 outputJPEG(c);
AxedaCorp 0:65004368569c 135 }
AxedaCorp 0:65004368569c 136 if (++m_seg_pos < m_seg_len) {
AxedaCorp 0:65004368569c 137 break;
AxedaCorp 0:65004368569c 138 }
AxedaCorp 0:65004368569c 139 if (m_mark == MARK_SOS) {
AxedaCorp 0:65004368569c 140 m_seq = SEQ_SOS;
AxedaCorp 0:65004368569c 141 break;
AxedaCorp 0:65004368569c 142 }
AxedaCorp 0:65004368569c 143 m_seq = SEQ_FRAME;
AxedaCorp 0:65004368569c 144 break;
AxedaCorp 0:65004368569c 145 case SEQ_SOS:
AxedaCorp 0:65004368569c 146 if (c == 0xff) {
AxedaCorp 0:65004368569c 147 m_seq = SEQ_SOS2;
AxedaCorp 0:65004368569c 148 break;
AxedaCorp 0:65004368569c 149 }
AxedaCorp 0:65004368569c 150 outputJPEG(c);
AxedaCorp 0:65004368569c 151 break;
AxedaCorp 0:65004368569c 152 case SEQ_SOS2:
AxedaCorp 0:65004368569c 153 if (c == 0x00) {
AxedaCorp 0:65004368569c 154 outputJPEG(0xff);
AxedaCorp 0:65004368569c 155 outputJPEG(0x00);
AxedaCorp 0:65004368569c 156 m_seq = SEQ_SOS;
AxedaCorp 0:65004368569c 157 break;
AxedaCorp 0:65004368569c 158 } else if (c >= MARK_RST0 && c <= MARK_RST7) {
AxedaCorp 0:65004368569c 159 outputJPEG(0xff);
AxedaCorp 0:65004368569c 160 outputJPEG(c);
AxedaCorp 0:65004368569c 161 m_seq = SEQ_SOS;
AxedaCorp 0:65004368569c 162 break;
AxedaCorp 0:65004368569c 163 } else if (c == MARK_EOI) {
AxedaCorp 0:65004368569c 164 outputJPEG(0xff);
AxedaCorp 0:65004368569c 165 outputJPEG(c, JPEG_END);
AxedaCorp 0:65004368569c 166 m_seq = SEQ_INIT;
AxedaCorp 0:65004368569c 167 break;
AxedaCorp 0:65004368569c 168 } else if (c == MARK_SOI) {
AxedaCorp 0:65004368569c 169 outputJPEG(0xff);
AxedaCorp 0:65004368569c 170 outputJPEG(c);
AxedaCorp 0:65004368569c 171 m_seq = SEQ_INIT;
AxedaCorp 0:65004368569c 172 break;
AxedaCorp 0:65004368569c 173 }
AxedaCorp 0:65004368569c 174 m_seq = SEQ_INIT;
AxedaCorp 0:65004368569c 175 break;
AxedaCorp 0:65004368569c 176 default:
AxedaCorp 0:65004368569c 177 m_seq = SEQ_INIT;
AxedaCorp 0:65004368569c 178 break;
AxedaCorp 0:65004368569c 179 }
AxedaCorp 0:65004368569c 180 }