David Fletcher / Mbed 2 deprecated cc3100_Test_websock_Camera_CM4F

Port of TI's CC3100 Websock camera demo. Using FreeRTOS, mbedTLS, also parts of Arducam for cams ov5642 and 0v2640. Can also use MT9D111. Work in progress. Be warned some parts maybe a bit flacky. This is for Seeed Arch max only, for an M3, see the demo for CM3 using the 0v5642 aducam mini.

Dependencies:   mbed

camera_app/camera_app.cpp@6:37fb696395d7, 2015-07-03 (annotated)

Committer:
dflet
Date:
Fri Jul 03 22:42:45 2015 +0000
Revision:
6:37fb696395d7
Parent:
5:75fcfdb7cae7
Child:
7:a069c1750fbc
WIP commit 7

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dflet 0:50cedd586816 1 //*****************************************************************************
dflet 0:50cedd586816 2 // camera_app.c
dflet 0:50cedd586816 3 //
dflet 0:50cedd586816 4 // camera application macro & APIs
dflet 0:50cedd586816 5 //
dflet 0:50cedd586816 6 // Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
dflet 0:50cedd586816 7 //
dflet 0:50cedd586816 8 //
dflet 0:50cedd586816 9 // Redistribution and use in source and binary forms, with or without
dflet 0:50cedd586816 10 // modification, are permitted provided that the following conditions
dflet 0:50cedd586816 11 // are met:
dflet 0:50cedd586816 12 //
dflet 0:50cedd586816 13 // Redistributions of source code must retain the above copyright
dflet 0:50cedd586816 14 // notice, this list of conditions and the following disclaimer.
dflet 0:50cedd586816 15 //
dflet 0:50cedd586816 16 // Redistributions in binary form must reproduce the above copyright
dflet 0:50cedd586816 17 // notice, this list of conditions and the following disclaimer in the
dflet 0:50cedd586816 18 // documentation and/or other materials provided with the
dflet 0:50cedd586816 19 // distribution.
dflet 0:50cedd586816 20 //
dflet 0:50cedd586816 21 // Neither the name of Texas Instruments Incorporated nor the names of
dflet 0:50cedd586816 22 // its contributors may be used to endorse or promote products derived
dflet 0:50cedd586816 23 // from this software without specific prior written permission.
dflet 0:50cedd586816 24 //
dflet 0:50cedd586816 25 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
dflet 0:50cedd586816 26 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
dflet 0:50cedd586816 27 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
dflet 0:50cedd586816 28 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
dflet 0:50cedd586816 29 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
dflet 0:50cedd586816 30 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
dflet 0:50cedd586816 31 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
dflet 0:50cedd586816 32 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
dflet 0:50cedd586816 33 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
dflet 0:50cedd586816 34 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
dflet 0:50cedd586816 35 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
dflet 0:50cedd586816 36 //
dflet 0:50cedd586816 37 //*****************************************************************************
dflet 0:50cedd586816 38 //*****************************************************************************
dflet 0:50cedd586816 39 //
dflet 0:50cedd586816 40 //! \addtogroup camera_app
dflet 0:50cedd586816 41 //! @{
dflet 0:50cedd586816 42 //
dflet 0:50cedd586816 43 //*****************************************************************************
dflet 5:75fcfdb7cae7 44 #include "mbed.h"
dflet 0:50cedd586816 45 #include <stdio.h>
dflet 0:50cedd586816 46 #include <string.h>
dflet 0:50cedd586816 47 #include <stdlib.h>
dflet 0:50cedd586816 48
dflet 0:50cedd586816 49 // SimpleLink include
dflet 0:50cedd586816 50 #include "cc3100_simplelink.h"
dflet 0:50cedd586816 51
dflet 6:37fb696395d7 52 #include "oslib/osi.h"
dflet 0:50cedd586816 53 #include "camera_app.h"
dflet 0:50cedd586816 54 #include "mt9d111.h"
dflet 0:50cedd586816 55 #include "i2cconfig.h"
dflet 4:c27adffcfec2 56
dflet 0:50cedd586816 57 #include "cli_uart.h"
dflet 3:7643714ec664 58 #include "Led_config.h"
dflet 6:37fb696395d7 59 #include "HttpDebug.h"
dflet 0:50cedd586816 60
dflet 0:50cedd586816 61 using namespace mbed_cc3100;
dflet 0:50cedd586816 62
dflet 6:37fb696395d7 63 //#define ENABLE_JPEG
dflet 0:50cedd586816 64
dflet 0:50cedd586816 65 //*****************************************************************************
dflet 0:50cedd586816 66 // Macros
dflet 0:50cedd586816 67 //*****************************************************************************
dflet 0:50cedd586816 68 #define USER_FILE_NAME "www/images/cc3200_camera_capture.jpg"
dflet 0:50cedd586816 69 #define TOTAL_DMA_ELEMENTS 64
dflet 0:50cedd586816 70 #define AP_SSID_LEN_MAX (33)
dflet 0:50cedd586816 71 #define ROLE_INVALID (-5)
dflet 0:50cedd586816 72 //*****************************************************************************
dflet 0:50cedd586816 73 // GLOBAL VARIABLES
dflet 0:50cedd586816 74 //*****************************************************************************
dflet 5:75fcfdb7cae7 75
dflet 0:50cedd586816 76 unsigned int g_frame_size_in_bytes;
dflet 0:50cedd586816 77 unsigned int g_uiDeviceModeConfig = ROLE_AP; //default is AP mode
dflet 0:50cedd586816 78 extern volatile unsigned char g_CaptureImage;
dflet 0:50cedd586816 79 extern int g_uiIpObtained = 0;
dflet 0:50cedd586816 80 extern int g_uiSimplelinkRole = ROLE_INVALID;
dflet 0:50cedd586816 81 unsigned int g_uiIpAddress = 0;
dflet 0:50cedd586816 82 static unsigned int *p_buffer = NULL;
dflet 0:50cedd586816 83 static unsigned char g_dma_txn_done;
dflet 0:50cedd586816 84 volatile static unsigned char g_frame_end;
dflet 0:50cedd586816 85 static unsigned int g_total_dma_intrpts;
dflet 0:50cedd586816 86
dflet 0:50cedd586816 87 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 88 int PIXELS_IN_X_AXIS = 640;
dflet 0:50cedd586816 89 int PIXELS_IN_Y_AXIS = 480;
dflet 0:50cedd586816 90 int FRAME_SIZE_IN_BYTES = (640 * 480 * 2);
dflet 0:50cedd586816 91 #else
dflet 0:50cedd586816 92 int PIXELS_IN_X_AXIS = 240;
dflet 0:50cedd586816 93 int PIXELS_IN_Y_AXIS = 256;
dflet 6:37fb696395d7 94 int FRAME_SIZE_IN_BYTES = (240 * 256 * 2);
dflet 0:50cedd586816 95 #endif
dflet 0:50cedd586816 96
dflet 6:37fb696395d7 97 //#ifdef ENABLE_JPEG
dflet 0:50cedd586816 98 unsigned int g_header_length;
dflet 6:37fb696395d7 99 //#endif
dflet 0:50cedd586816 100
dflet 0:50cedd586816 101 struct ImageBuffer
dflet 0:50cedd586816 102 {
dflet 6:37fb696395d7 103 //#ifdef ENABLE_JPEG
dflet 0:50cedd586816 104 char g_header[SMTP_BUF_LEN] /*= {'\0'}*/;
dflet 6:37fb696395d7 105 //#endif
dflet 6:37fb696395d7 106 unsigned int g_image_buffer[NUM_OF_4B_CHUNKS];//60Kb 15360, 50Kb 12800
dflet 0:50cedd586816 107 };
dflet 0:50cedd586816 108
dflet 0:50cedd586816 109 ImageBuffer g_image;
dflet 0:50cedd586816 110
dflet 0:50cedd586816 111 typedef enum pictureRequest{
dflet 0:50cedd586816 112 NO_PICTURE = 0x00,
dflet 0:50cedd586816 113 SINGLE_HIGH_RESOLUTION = 0x01,
dflet 0:50cedd586816 114 STREAM_LOW_RESOLUTION = 0x02
dflet 0:50cedd586816 115
dflet 0:50cedd586816 116 }e_pictureRequest;
dflet 0:50cedd586816 117
dflet 0:50cedd586816 118 typedef enum pictureFormat{
dflet 0:50cedd586816 119 RAW_10BIT = 0,
dflet 0:50cedd586816 120 ITU_R_BT601,
dflet 0:50cedd586816 121 YCbCr_4_2_2,
dflet 0:50cedd586816 122 YCbCr_4_2_0,
dflet 0:50cedd586816 123 RGB_565,
dflet 0:50cedd586816 124 RGB_555,
dflet 0:50cedd586816 125 RGB_444
dflet 0:50cedd586816 126
dflet 0:50cedd586816 127 }e_pictureFormat;
dflet 0:50cedd586816 128
dflet 0:50cedd586816 129 typedef enum pictureResolution{
dflet 0:50cedd586816 130 QVGA = 0,
dflet 0:50cedd586816 131 VGA,
dflet 0:50cedd586816 132 SVGA,
dflet 0:50cedd586816 133 XGA,
dflet 0:50cedd586816 134 uXGA
dflet 0:50cedd586816 135
dflet 0:50cedd586816 136 }e_pictureResolution;
dflet 0:50cedd586816 137
dflet 0:50cedd586816 138
dflet 0:50cedd586816 139 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 140 #define FORMAT_YCBCR422 0
dflet 0:50cedd586816 141 #define FORMAT_YCBCR420 1
dflet 0:50cedd586816 142 #define FORMAT_MONOCHROME 2
dflet 0:50cedd586816 143
dflet 0:50cedd586816 144 unsigned char JPEG_StdQuantTblY[64] =
dflet 0:50cedd586816 145 {
dflet 0:50cedd586816 146 16, 11, 10, 16, 24, 40, 51, 61,
dflet 0:50cedd586816 147 12, 12, 14, 19, 26, 58, 60, 55,
dflet 0:50cedd586816 148 14, 13, 16, 24, 40, 57, 69, 56,
dflet 0:50cedd586816 149 14, 17, 22, 29, 51, 87, 80, 62,
dflet 0:50cedd586816 150 18, 22, 37, 56, 68, 109, 103, 77,
dflet 0:50cedd586816 151 24, 35, 55, 64, 81, 104, 113, 92,
dflet 0:50cedd586816 152 49, 64, 78, 87, 103, 121, 120, 101,
dflet 0:50cedd586816 153 72, 92, 95, 98, 112, 100, 103, 99
dflet 0:50cedd586816 154 };
dflet 0:50cedd586816 155
dflet 0:50cedd586816 156 unsigned char JPEG_StdQuantTblC[64] =
dflet 0:50cedd586816 157 {
dflet 0:50cedd586816 158 17, 18, 24, 47, 99, 99, 99, 99,
dflet 0:50cedd586816 159 18, 21, 26, 66, 99, 99, 99, 99,
dflet 0:50cedd586816 160 24, 26, 56, 99, 99, 99, 99, 99,
dflet 0:50cedd586816 161 47, 66, 99, 99, 99, 99, 99, 99,
dflet 0:50cedd586816 162 99, 99, 99, 99, 99, 99, 99, 99,
dflet 0:50cedd586816 163 99, 99, 99, 99, 99, 99, 99, 99,
dflet 0:50cedd586816 164 99, 99, 99, 99, 99, 99, 99, 99,
dflet 0:50cedd586816 165 99, 99, 99, 99, 99, 99, 99, 99
dflet 0:50cedd586816 166 };
dflet 0:50cedd586816 167 //
dflet 0:50cedd586816 168 // This table is used for regular-position to zigzagged-position lookup
dflet 0:50cedd586816 169 // This is Figure A.6 from the ISO/IEC 10918-1 1993 specification
dflet 0:50cedd586816 170 //
dflet 0:50cedd586816 171 static unsigned char zigzag[64] =
dflet 0:50cedd586816 172 {
dflet 0:50cedd586816 173 0, 1, 5, 6,14,15,27,28,
dflet 0:50cedd586816 174 2, 4, 7,13,16,26,29,42,
dflet 0:50cedd586816 175 3, 8,12,17,25,30,41,43,
dflet 0:50cedd586816 176 9,11,18,24,31,40,44,53,
dflet 0:50cedd586816 177 10,19,23,32,39,45,52,54,
dflet 0:50cedd586816 178 20,22,33,38,46,51,55,60,
dflet 0:50cedd586816 179 21,34,37,47,50,56,59,61,
dflet 0:50cedd586816 180 35,36,48,49,57,58,62,63
dflet 0:50cedd586816 181 };
dflet 0:50cedd586816 182
dflet 0:50cedd586816 183 unsigned int JPEG_StdHuffmanTbl[384] =
dflet 0:50cedd586816 184 {
dflet 0:50cedd586816 185 0x100, 0x101, 0x204, 0x30b, 0x41a, 0x678, 0x7f8, 0x9f6,
dflet 0:50cedd586816 186 0xf82, 0xf83, 0x30c, 0x41b, 0x679, 0x8f6, 0xaf6, 0xf84,
dflet 0:50cedd586816 187 0xf85, 0xf86, 0xf87, 0xf88, 0x41c, 0x7f9, 0x9f7, 0xbf4,
dflet 0:50cedd586816 188 0xf89, 0xf8a, 0xf8b, 0xf8c, 0xf8d, 0xf8e, 0x53a, 0x8f7,
dflet 0:50cedd586816 189 0xbf5, 0xf8f, 0xf90, 0xf91, 0xf92, 0xf93, 0xf94, 0xf95,
dflet 0:50cedd586816 190 0x53b, 0x9f8, 0xf96, 0xf97, 0xf98, 0xf99, 0xf9a, 0xf9b,
dflet 0:50cedd586816 191 0xf9c, 0xf9d, 0x67a, 0xaf7, 0xf9e, 0xf9f, 0xfa0, 0xfa1,
dflet 0:50cedd586816 192 0xfa2, 0xfa3, 0xfa4, 0xfa5, 0x67b, 0xbf6, 0xfa6, 0xfa7,
dflet 0:50cedd586816 193 0xfa8, 0xfa9, 0xfaa, 0xfab, 0xfac, 0xfad, 0x7fa, 0xbf7,
dflet 0:50cedd586816 194 0xfae, 0xfaf, 0xfb0, 0xfb1, 0xfb2, 0xfb3, 0xfb4, 0xfb5,
dflet 0:50cedd586816 195 0x8f8, 0xec0, 0xfb6, 0xfb7, 0xfb8, 0xfb9, 0xfba, 0xfbb,
dflet 0:50cedd586816 196 0xfbc, 0xfbd, 0x8f9, 0xfbe, 0xfbf, 0xfc0, 0xfc1, 0xfc2,
dflet 0:50cedd586816 197 0xfc3, 0xfc4, 0xfc5, 0xfc6, 0x8fa, 0xfc7, 0xfc8, 0xfc9,
dflet 0:50cedd586816 198 0xfca, 0xfcb, 0xfcc, 0xfcd, 0xfce, 0xfcf, 0x9f9, 0xfd0,
dflet 0:50cedd586816 199 0xfd1, 0xfd2, 0xfd3, 0xfd4, 0xfd5, 0xfd6, 0xfd7, 0xfd8,
dflet 0:50cedd586816 200 0x9fa, 0xfd9, 0xfda, 0xfdb, 0xfdc, 0xfdd, 0xfde, 0xfdf,
dflet 0:50cedd586816 201 0xfe0, 0xfe1, 0xaf8, 0xfe2, 0xfe3, 0xfe4, 0xfe5, 0xfe6,
dflet 0:50cedd586816 202 0xfe7, 0xfe8, 0xfe9, 0xfea, 0xfeb, 0xfec, 0xfed, 0xfee,
dflet 0:50cedd586816 203 0xfef, 0xff0, 0xff1, 0xff2, 0xff3, 0xff4, 0xff5, 0xff6,
dflet 0:50cedd586816 204 0xff7, 0xff8, 0xff9, 0xffa, 0xffb, 0xffc, 0xffd, 0xffe,
dflet 0:50cedd586816 205 0x30a, 0xaf9, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
dflet 0:50cedd586816 206 0xfd0, 0xfd1, 0xfd2, 0xfd3, 0xfd4, 0xfd5, 0xfd6, 0xfd7,
dflet 0:50cedd586816 207 0x101, 0x204, 0x30a, 0x418, 0x419, 0x538, 0x678, 0x8f4,
dflet 0:50cedd586816 208 0x9f6, 0xbf4, 0x30b, 0x539, 0x7f6, 0x8f5, 0xaf6, 0xbf5,
dflet 0:50cedd586816 209 0xf88, 0xf89, 0xf8a, 0xf8b, 0x41a, 0x7f7, 0x9f7, 0xbf6,
dflet 0:50cedd586816 210 0xec2, 0xf8c, 0xf8d, 0xf8e, 0xf8f, 0xf90, 0x41b, 0x7f8,
dflet 0:50cedd586816 211 0x9f8, 0xbf7, 0xf91, 0xf92, 0xf93, 0xf94, 0xf95, 0xf96,
dflet 0:50cedd586816 212 0x53a, 0x8f6, 0xf97, 0xf98, 0xf99, 0xf9a, 0xf9b, 0xf9c,
dflet 0:50cedd586816 213 0xf9d, 0xf9e, 0x53b, 0x9f9, 0xf9f, 0xfa0, 0xfa1, 0xfa2,
dflet 0:50cedd586816 214 0xfa3, 0xfa4, 0xfa5, 0xfa6, 0x679, 0xaf7, 0xfa7, 0xfa8,
dflet 0:50cedd586816 215 0xfa9, 0xfaa, 0xfab, 0xfac, 0xfad, 0xfae, 0x67a, 0xaf8,
dflet 0:50cedd586816 216 0xfaf, 0xfb0, 0xfb1, 0xfb2, 0xfb3, 0xfb4, 0xfb5, 0xfb6,
dflet 0:50cedd586816 217 0x7f9, 0xfb7, 0xfb8, 0xfb9, 0xfba, 0xfbb, 0xfbc, 0xfbd,
dflet 0:50cedd586816 218 0xfbe, 0xfbf, 0x8f7, 0xfc0, 0xfc1, 0xfc2, 0xfc3, 0xfc4,
dflet 0:50cedd586816 219 0xfc5, 0xfc6, 0xfc7, 0xfc8, 0x8f8, 0xfc9, 0xfca, 0xfcb,
dflet 0:50cedd586816 220 0xfcc, 0xfcd, 0xfce, 0xfcf, 0xfd0, 0xfd1, 0x8f9, 0xfd2,
dflet 0:50cedd586816 221 0xfd3, 0xfd4, 0xfd5, 0xfd6, 0xfd7, 0xfd8, 0xfd9, 0xfda,
dflet 0:50cedd586816 222 0x8fa, 0xfdb, 0xfdc, 0xfdd, 0xfde, 0xfdf, 0xfe0, 0xfe1,
dflet 0:50cedd586816 223 0xfe2, 0xfe3, 0xaf9, 0xfe4, 0xfe5, 0xfe6, 0xfe7, 0xfe8,
dflet 0:50cedd586816 224 0xfe9, 0xfea, 0xfeb, 0xfec, 0xde0, 0xfed, 0xfee, 0xfef,
dflet 0:50cedd586816 225 0xff0, 0xff1, 0xff2, 0xff3, 0xff4, 0xff5, 0xec3, 0xff6,
dflet 0:50cedd586816 226 0xff7, 0xff8, 0xff9, 0xffa, 0xffb, 0xffc, 0xffd, 0xffe,
dflet 0:50cedd586816 227 0x100, 0x9fa, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
dflet 0:50cedd586816 228 0xfd0, 0xfd1, 0xfd2, 0xfd3, 0xfd4, 0xfd5, 0xfd6, 0xfd7,
dflet 0:50cedd586816 229 0x100, 0x202, 0x203, 0x204, 0x205, 0x206, 0x30e, 0x41e,
dflet 0:50cedd586816 230 0x53e, 0x67e, 0x7fe, 0x8fe, 0xfff, 0xfff, 0xfff, 0xfff,
dflet 0:50cedd586816 231 0x100, 0x101, 0x102, 0x206, 0x30e, 0x41e, 0x53e, 0x67e,
dflet 0:50cedd586816 232 0x7fe, 0x8fe, 0x9fe, 0xafe, 0xfff, 0xfff, 0xfff, 0xfff
dflet 0:50cedd586816 233 };
dflet 0:50cedd586816 234 #endif
dflet 0:50cedd586816 235
dflet 0:50cedd586816 236 //*****************************************************************************
dflet 0:50cedd586816 237 //
dflet 0:50cedd586816 238 //! Start Camera
dflet 0:50cedd586816 239 //! 1. Establishes connection w/ AP//
dflet 0:50cedd586816 240 //! 2. Initializes the camera sub-components//! GPIO Enable & Configuration
dflet 0:50cedd586816 241 //! 3. Listens and processes the image capture requests from user-applications
dflet 0:50cedd586816 242 //!
dflet 0:50cedd586816 243 //! \param[out] WriteBuffer - Pointer to the Frame Buffer
dflet 0:50cedd586816 244 //! \return None
dflet 0:50cedd586816 245 //
dflet 0:50cedd586816 246 //*****************************************************************************
dflet 0:50cedd586816 247
dflet 0:50cedd586816 248 unsigned short StartCamera(char **WriteBuffer)
dflet 0:50cedd586816 249 {
dflet 6:37fb696395d7 250 // Uart_Write((uint8_t*)"StartCamera \n\r");
dflet 0:50cedd586816 251 unsigned short Writelength;
dflet 0:50cedd586816 252 //
dflet 0:50cedd586816 253 // Waits in the below loop till Capture button is pressed
dflet 0:50cedd586816 254 //
dflet 0:50cedd586816 255 Writelength = CaptureImage(WriteBuffer);
dflet 0:50cedd586816 256
dflet 0:50cedd586816 257 return(Writelength);
dflet 0:50cedd586816 258
dflet 0:50cedd586816 259 }
dflet 0:50cedd586816 260 //*****************************************************************************
dflet 0:50cedd586816 261 //
dflet 0:50cedd586816 262 //! InitCameraComponents
dflet 0:50cedd586816 263 //! PinMux, Camera Initialization and Configuration
dflet 0:50cedd586816 264 //!
dflet 0:50cedd586816 265 //! \param[in] width - X-Axis
dflet 0:50cedd586816 266 //! \param[in] width - Y-Axis
dflet 0:50cedd586816 267 //! \return None
dflet 0:50cedd586816 268 //
dflet 0:50cedd586816 269 //*****************************************************************************
dflet 0:50cedd586816 270
dflet 0:50cedd586816 271 void InitCameraComponents(int width, int height)
dflet 0:50cedd586816 272 {
dflet 6:37fb696395d7 273 // Uart_Write((uint8_t*)"InitCameraComponents \n\r");
dflet 0:50cedd586816 274 //
dflet 0:50cedd586816 275 // Initialize I2C Interface
dflet 0:50cedd586816 276 //
dflet 0:50cedd586816 277 I2CInit();
dflet 6:37fb696395d7 278
dflet 0:50cedd586816 279 //
dflet 0:50cedd586816 280 // Initialize camera sensor
dflet 0:50cedd586816 281 //
dflet 0:50cedd586816 282 CameraSensorInit();
dflet 0:50cedd586816 283
dflet 0:50cedd586816 284 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 285 //
dflet 0:50cedd586816 286 // Configure Sensor in Capture Mode
dflet 0:50cedd586816 287 //
dflet 0:50cedd586816 288 PIXELS_IN_X_AXIS = width;
dflet 0:50cedd586816 289 PIXELS_IN_Y_AXIS = height;
dflet 0:50cedd586816 290 FRAME_SIZE_IN_BYTES = PIXELS_IN_X_AXIS * PIXELS_IN_Y_AXIS * BYTES_PER_PIXEL;
dflet 0:50cedd586816 291
dflet 0:50cedd586816 292 StartSensorInJpegMode(width, height);
dflet 0:50cedd586816 293
dflet 0:50cedd586816 294 #endif
dflet 0:50cedd586816 295 }
dflet 0:50cedd586816 296
dflet 0:50cedd586816 297 //*****************************************************************************
dflet 0:50cedd586816 298 //
dflet 0:50cedd586816 299 //! Set resolution of camera
dflet 0:50cedd586816 300 //!
dflet 0:50cedd586816 301 //! \param[in] width - X Axis
dflet 0:50cedd586816 302 //! \param[in] height - Y Axis
dflet 0:50cedd586816 303 //! \return 0 on success else -ve
dflet 0:50cedd586816 304 //
dflet 0:50cedd586816 305 //*****************************************************************************
dflet 0:50cedd586816 306
dflet 0:50cedd586816 307 int SetCameraResolution(int width, int height)
dflet 0:50cedd586816 308 {
dflet 0:50cedd586816 309 Uart_Write((uint8_t*)"SetCameraResolution \n\r");
dflet 0:50cedd586816 310 int lRetVal = 0;
dflet 0:50cedd586816 311
dflet 0:50cedd586816 312 PIXELS_IN_X_AXIS = width;
dflet 0:50cedd586816 313 PIXELS_IN_Y_AXIS = height;
dflet 0:50cedd586816 314 FRAME_SIZE_IN_BYTES = PIXELS_IN_X_AXIS * PIXELS_IN_Y_AXIS * BYTES_PER_PIXEL;
dflet 0:50cedd586816 315 lRetVal = CameraSensorResolution(width, height);
dflet 0:50cedd586816 316 return lRetVal;
dflet 0:50cedd586816 317 }
dflet 0:50cedd586816 318
dflet 0:50cedd586816 319 //*****************************************************************************
dflet 0:50cedd586816 320 //
dflet 0:50cedd586816 321 //! CaptureImage
dflet 0:50cedd586816 322 //! Configures DMA and starts the Capture. Post Capture writes to SFLASH
dflet 0:50cedd586816 323 //!
dflet 0:50cedd586816 324 //! \param None
dflet 0:50cedd586816 325 //! \return None
dflet 0:50cedd586816 326 //!
dflet 0:50cedd586816 327 //
dflet 0:50cedd586816 328 //*****************************************************************************
dflet 5:75fcfdb7cae7 329 DCMI_HandleTypeDef phdcmi;
dflet 5:75fcfdb7cae7 330 DMA_HandleTypeDef hdma_dcmi;
dflet 0:50cedd586816 331 static unsigned short CaptureImage(char** WriteBuffer)
dflet 0:50cedd586816 332 {
dflet 6:37fb696395d7 333 // Uart_Write((uint8_t*)"CaptureImage \n\r");
dflet 6:37fb696395d7 334
dflet 2:b92db44a29b4 335 memset(g_image.g_image_buffer,0xF80F,sizeof(g_image.g_image_buffer));
dflet 2:b92db44a29b4 336 p_buffer = &(g_image.g_image_buffer[0]);
dflet 6:37fb696395d7 337 int32_t image_size;
dflet 0:50cedd586816 338 DMAConfig();
dflet 0:50cedd586816 339
dflet 0:50cedd586816 340 //
dflet 0:50cedd586816 341 // Perform Image Capture
dflet 0:50cedd586816 342 //
dflet 5:75fcfdb7cae7 343 // Uart_Write((uint8_t*)"CaptureImage Start\n\r");
dflet 6:37fb696395d7 344 // HAL_DCMI_Start_DMA(&phdcmi, DCMI_MODE_SNAPSHOT, (uint32_t)p_buffer, sizeof(g_image.g_image_buffer));
dflet 6:37fb696395d7 345 HAL_DCMI_Start_DMA(&phdcmi, DCMI_MODE_SNAPSHOT, (uint32_t)p_buffer, FRAME_SIZE_IN_BYTES);
dflet 2:b92db44a29b4 346 g_frame_end = 1;
dflet 2:b92db44a29b4 347
dflet 6:37fb696395d7 348 // Uart_Write((uint8_t*)"\n\rCaptureImage Complete\n\r");
dflet 2:b92db44a29b4 349
dflet 2:b92db44a29b4 350 /* Read the number of data items transferred */
dflet 6:37fb696395d7 351 image_size = (FRAME_SIZE_IN_BYTES - (hdma_dcmi.Instance->NDTR*4));
dflet 6:37fb696395d7 352 // p_buffer += image_size;
dflet 6:37fb696395d7 353 // image_size = hdma_dcmi.Instance->NDTR *4;
dflet 6:37fb696395d7 354 // HttpDebug("hdma_dcmi.Instance->NDTR = %i\r\n",hdma_dcmi.Instance->NDTR *4);
dflet 6:37fb696395d7 355 // image_size = (sizeof(g_image.g_image_buffer) - (hdma_dcmi.Instance->NDTR * 4));
dflet 6:37fb696395d7 356 // HttpDebug("image_size = %i\r\n",image_size);
dflet 5:75fcfdb7cae7 357 g_dma_txn_done = 1;
dflet 5:75fcfdb7cae7 358 g_frame_size_in_bytes = image_size;
dflet 5:75fcfdb7cae7 359 g_total_dma_intrpts = 1;
dflet 5:75fcfdb7cae7 360
dflet 0:50cedd586816 361 //
dflet 0:50cedd586816 362 // Create JPEG Header
dflet 0:50cedd586816 363 //
dflet 0:50cedd586816 364 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 365 memset(g_image.g_header, '\0', sizeof(g_image.g_header));
dflet 0:50cedd586816 366 g_header_length = CreateJpegHeader((char *)&(g_image.g_header[0]), PIXELS_IN_X_AXIS,
dflet 0:50cedd586816 367 PIXELS_IN_Y_AXIS, 0, 0x0020, 9);
dflet 0:50cedd586816 368
dflet 0:50cedd586816 369 // This loop pushes the header to the end of the array so that the entire picture can be contiguous in memory
dflet 0:50cedd586816 370 unsigned short shift;
dflet 0:50cedd586816 371
dflet 0:50cedd586816 372 for(shift=1; shift <= g_header_length; shift++)
dflet 0:50cedd586816 373 {
dflet 0:50cedd586816 374 g_image.g_header[SMTP_BUF_LEN - shift] = g_image.g_header[g_header_length - shift];
dflet 0:50cedd586816 375
dflet 0:50cedd586816 376 }
dflet 0:50cedd586816 377 #endif
dflet 0:50cedd586816 378 *WriteBuffer = &(g_image.g_header[SMTP_BUF_LEN - g_header_length]);
dflet 6:37fb696395d7 379 //#endif
dflet 0:50cedd586816 380 return(g_header_length + g_frame_size_in_bytes);
dflet 0:50cedd586816 381 }
dflet 0:50cedd586816 382 //*****************************************************************************
dflet 0:50cedd586816 383 //
dflet 0:50cedd586816 384 //! DMA Config
dflet 6:37fb696395d7 385 //! Initialize the DMA\DCMI and Setup the DMA transfer
dflet 0:50cedd586816 386 //!
dflet 0:50cedd586816 387 //! \param None
dflet 0:50cedd586816 388 //! \return None
dflet 0:50cedd586816 389 //
dflet 0:50cedd586816 390 //*****************************************************************************
dflet 0:50cedd586816 391 static void DMAConfig()
dflet 0:50cedd586816 392 {
dflet 6:37fb696395d7 393 // Uart_Write((uint8_t*)"DMAConfig \n\r");
dflet 5:75fcfdb7cae7 394
dflet 5:75fcfdb7cae7 395 /* Peripheral DMA init*/
dflet 5:75fcfdb7cae7 396 /* DMA controller clock enable */
dflet 5:75fcfdb7cae7 397 __DMA2_CLK_ENABLE();
dflet 5:75fcfdb7cae7 398
dflet 5:75fcfdb7cae7 399 hdma_dcmi.Instance = DMA2_Stream1;
dflet 5:75fcfdb7cae7 400 hdma_dcmi.Init.Channel = DMA_CHANNEL_1;
dflet 5:75fcfdb7cae7 401 hdma_dcmi.Init.Direction = DMA_PERIPH_TO_MEMORY;
dflet 5:75fcfdb7cae7 402 hdma_dcmi.Init.PeriphInc = DMA_PINC_DISABLE;
dflet 5:75fcfdb7cae7 403 hdma_dcmi.Init.MemInc = DMA_MINC_ENABLE;
dflet 5:75fcfdb7cae7 404 hdma_dcmi.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
dflet 5:75fcfdb7cae7 405 hdma_dcmi.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
dflet 6:37fb696395d7 406 hdma_dcmi.Init.Mode = DMA_NORMAL;//DMA_CIRCULAR;
dflet 5:75fcfdb7cae7 407 hdma_dcmi.Init.Priority = DMA_PRIORITY_HIGH;
dflet 6:37fb696395d7 408 hdma_dcmi.Init.FIFOMode = DMA_FIFOMODE_ENABLE;//DMA_FIFOMODE_DISABLE;
dflet 5:75fcfdb7cae7 409 hdma_dcmi.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
dflet 5:75fcfdb7cae7 410 hdma_dcmi.Init.MemBurst = DMA_MBURST_SINGLE;
dflet 5:75fcfdb7cae7 411 hdma_dcmi.Init.PeriphBurst = DMA_PBURST_SINGLE;
dflet 5:75fcfdb7cae7 412
dflet 5:75fcfdb7cae7 413 __HAL_LINKDMA(&phdcmi,DMA_Handle,hdma_dcmi);
dflet 5:75fcfdb7cae7 414
dflet 5:75fcfdb7cae7 415 /* DMA interrupt init */
dflet 6:37fb696395d7 416 HAL_NVIC_SetPriority(DMA2_Stream1_IRQn, 5, 0);
dflet 5:75fcfdb7cae7 417 HAL_NVIC_EnableIRQ(DMA2_Stream1_IRQn);
dflet 5:75fcfdb7cae7 418
dflet 5:75fcfdb7cae7 419 phdcmi.Instance = DCMI;
dflet 5:75fcfdb7cae7 420 phdcmi.Init.SynchroMode = DCMI_SYNCHRO_HARDWARE;
dflet 5:75fcfdb7cae7 421 phdcmi.Init.PCKPolarity = DCMI_PCKPOLARITY_RISING;//FALLING
dflet 5:75fcfdb7cae7 422 phdcmi.Init.VSPolarity = DCMI_VSPOLARITY_LOW;
dflet 5:75fcfdb7cae7 423 phdcmi.Init.HSPolarity = DCMI_HSPOLARITY_LOW;
dflet 5:75fcfdb7cae7 424 phdcmi.Init.CaptureRate = DCMI_CR_ALL_FRAME;
dflet 5:75fcfdb7cae7 425 phdcmi.Init.ExtendedDataMode = DCMI_EXTEND_DATA_8B;
dflet 5:75fcfdb7cae7 426 #ifdef ENABLE_JPEG
dflet 5:75fcfdb7cae7 427 phdcmi.Init.JPEGMode = DCMI_JPEG_ENABLE;
dflet 5:75fcfdb7cae7 428 #else
dflet 5:75fcfdb7cae7 429 phdcmi.Init.JPEGMode = DCMI_JPEG_DISABLE;
dflet 5:75fcfdb7cae7 430 #endif
dflet 5:75fcfdb7cae7 431
dflet 5:75fcfdb7cae7 432 GPIO_InitTypeDef GPIO_InitStruct;
dflet 5:75fcfdb7cae7 433 if(phdcmi.Instance==DCMI)
dflet 5:75fcfdb7cae7 434 {
dflet 5:75fcfdb7cae7 435 __GPIOE_CLK_ENABLE();
dflet 5:75fcfdb7cae7 436 __GPIOA_CLK_ENABLE();
dflet 5:75fcfdb7cae7 437 __GPIOB_CLK_ENABLE();
dflet 5:75fcfdb7cae7 438 __GPIOC_CLK_ENABLE();
dflet 5:75fcfdb7cae7 439 __GPIOH_CLK_ENABLE(); //Enable HSE Clock 8MHz
dflet 5:75fcfdb7cae7 440
dflet 5:75fcfdb7cae7 441 /**MCO2 GPIO Configuration
dflet 5:75fcfdb7cae7 442 PC9 ------> MCO2
dflet 5:75fcfdb7cae7 443 */
dflet 5:75fcfdb7cae7 444
dflet 5:75fcfdb7cae7 445 /* Peripheral clock enable */
dflet 5:75fcfdb7cae7 446 __DCMI_CLK_ENABLE();
dflet 5:75fcfdb7cae7 447
dflet 5:75fcfdb7cae7 448 /**DCMI GPIO Configuration
dflet 5:75fcfdb7cae7 449 PE4 ------> DCMI_D4
dflet 5:75fcfdb7cae7 450 PE5 ------> DCMI_D6
dflet 5:75fcfdb7cae7 451 PE6 ------> DCMI_D7
dflet 5:75fcfdb7cae7 452 PA4 ------> DCMI_HSYNC
dflet 5:75fcfdb7cae7 453 PA6 ------> DCMI_PIXCK
dflet 5:75fcfdb7cae7 454 PC8 ------> DCMI_D2
dflet 5:75fcfdb7cae7 455 PE1 ------> DCMI_D3
dflet 5:75fcfdb7cae7 456 PA9 ------> DCMI_D0
dflet 5:75fcfdb7cae7 457 PA10 ------> DCMI_D1
dflet 5:75fcfdb7cae7 458 PB6 ------> DCMI_D5
dflet 5:75fcfdb7cae7 459 PB7 ------> DCMI_VSYNC
dflet 5:75fcfdb7cae7 460 */
dflet 5:75fcfdb7cae7 461 GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6;
dflet 5:75fcfdb7cae7 462 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
dflet 5:75fcfdb7cae7 463 GPIO_InitStruct.Pull = GPIO_NOPULL;
dflet 5:75fcfdb7cae7 464 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
dflet 5:75fcfdb7cae7 465 GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
dflet 5:75fcfdb7cae7 466 HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
dflet 5:75fcfdb7cae7 467
dflet 5:75fcfdb7cae7 468 GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_6|GPIO_PIN_9|GPIO_PIN_10;
dflet 5:75fcfdb7cae7 469 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
dflet 5:75fcfdb7cae7 470 GPIO_InitStruct.Pull = GPIO_NOPULL;
dflet 5:75fcfdb7cae7 471 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
dflet 5:75fcfdb7cae7 472 GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
dflet 5:75fcfdb7cae7 473 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
dflet 5:75fcfdb7cae7 474
dflet 5:75fcfdb7cae7 475 GPIO_InitStruct.Pin = GPIO_PIN_8;
dflet 5:75fcfdb7cae7 476 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
dflet 5:75fcfdb7cae7 477 GPIO_InitStruct.Pull = GPIO_NOPULL;
dflet 5:75fcfdb7cae7 478 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
dflet 5:75fcfdb7cae7 479 GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
dflet 5:75fcfdb7cae7 480 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
dflet 5:75fcfdb7cae7 481
dflet 5:75fcfdb7cae7 482 /*Configure GPIO pin : GPIO_AF0_MCO PC9 */
dflet 5:75fcfdb7cae7 483 GPIO_InitStruct.Pin = GPIO_PIN_9;
dflet 5:75fcfdb7cae7 484 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
dflet 5:75fcfdb7cae7 485 GPIO_InitStruct.Pull = GPIO_NOPULL;
dflet 5:75fcfdb7cae7 486 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
dflet 5:75fcfdb7cae7 487 GPIO_InitStruct.Alternate = GPIO_AF0_MCO;
dflet 5:75fcfdb7cae7 488 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
dflet 5:75fcfdb7cae7 489
dflet 5:75fcfdb7cae7 490 GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
dflet 5:75fcfdb7cae7 491 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
dflet 5:75fcfdb7cae7 492 GPIO_InitStruct.Pull = GPIO_NOPULL;
dflet 5:75fcfdb7cae7 493 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
dflet 5:75fcfdb7cae7 494 GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
dflet 5:75fcfdb7cae7 495 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
dflet 5:75fcfdb7cae7 496
dflet 5:75fcfdb7cae7 497 /* System interrupt init*/
dflet 6:37fb696395d7 498 HAL_NVIC_SetPriority(DCMI_IRQn, 5, 0);
dflet 5:75fcfdb7cae7 499 HAL_NVIC_EnableIRQ(DCMI_IRQn);
dflet 5:75fcfdb7cae7 500
dflet 5:75fcfdb7cae7 501 HAL_DMA_Init(&hdma_dcmi);
dflet 5:75fcfdb7cae7 502 HAL_DCMI_Init(&phdcmi);
dflet 5:75fcfdb7cae7 503
dflet 5:75fcfdb7cae7 504 }
dflet 0:50cedd586816 505
dflet 0:50cedd586816 506 g_dma_txn_done = 0;
dflet 0:50cedd586816 507 g_frame_size_in_bytes = 0;
dflet 0:50cedd586816 508 g_frame_end = 0;
dflet 0:50cedd586816 509 g_total_dma_intrpts = 0;
dflet 6:37fb696395d7 510 }
dflet 0:50cedd586816 511
dflet 5:75fcfdb7cae7 512 void HAL_DCMI_MspDeInit(DCMI_HandleTypeDef* phdcmi){
dflet 5:75fcfdb7cae7 513
dflet 5:75fcfdb7cae7 514 if(phdcmi->Instance==DCMI)
dflet 5:75fcfdb7cae7 515 {
dflet 0:50cedd586816 516
dflet 5:75fcfdb7cae7 517 /* Peripheral clock disable */
dflet 5:75fcfdb7cae7 518 __DCMI_CLK_DISABLE();
dflet 5:75fcfdb7cae7 519
dflet 5:75fcfdb7cae7 520 /**DCMI GPIO Configuration
dflet 5:75fcfdb7cae7 521 PE4 ------> DCMI_D4
dflet 5:75fcfdb7cae7 522 PE5 ------> DCMI_D6
dflet 5:75fcfdb7cae7 523 PE6 ------> DCMI_D7
dflet 5:75fcfdb7cae7 524 PA4 ------> DCMI_HSYNC
dflet 5:75fcfdb7cae7 525 PA6 ------> DCMI_PIXCK
dflet 5:75fcfdb7cae7 526 PC8 ------> DCMI_D2
dflet 5:75fcfdb7cae7 527 PE1 ------> DCMI_D3
dflet 5:75fcfdb7cae7 528 PA9 ------> DCMI_D0
dflet 5:75fcfdb7cae7 529 PA10 ------> DCMI_D1
dflet 5:75fcfdb7cae7 530 PB6 ------> DCMI_D5
dflet 5:75fcfdb7cae7 531 PB7 ------> DCMI_VSYNC
dflet 5:75fcfdb7cae7 532
dflet 5:75fcfdb7cae7 533 PE1 ------> MCO2
dflet 5:75fcfdb7cae7 534 */
dflet 5:75fcfdb7cae7 535
dflet 5:75fcfdb7cae7 536 HAL_GPIO_DeInit(GPIOE, GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6);
dflet 5:75fcfdb7cae7 537
dflet 5:75fcfdb7cae7 538 HAL_GPIO_DeInit(GPIOA, GPIO_PIN_4|GPIO_PIN_6|GPIO_PIN_9|GPIO_PIN_10);
dflet 5:75fcfdb7cae7 539
dflet 5:75fcfdb7cae7 540 HAL_GPIO_DeInit(GPIOC, GPIO_PIN_9|GPIO_PIN_8);
dflet 5:75fcfdb7cae7 541
dflet 5:75fcfdb7cae7 542 HAL_GPIO_DeInit(GPIOB, GPIO_PIN_6|GPIO_PIN_7);
dflet 5:75fcfdb7cae7 543
dflet 5:75fcfdb7cae7 544 /* Peripheral DMA DeInit*/
dflet 5:75fcfdb7cae7 545 HAL_DMA_DeInit(phdcmi->DMA_Handle);
dflet 5:75fcfdb7cae7 546
dflet 5:75fcfdb7cae7 547 /* Peripheral interrupt DeInit*/
dflet 5:75fcfdb7cae7 548 HAL_NVIC_DisableIRQ(DCMI_IRQn);
dflet 5:75fcfdb7cae7 549
dflet 5:75fcfdb7cae7 550 }
dflet 5:75fcfdb7cae7 551
dflet 5:75fcfdb7cae7 552 }
dflet 0:50cedd586816 553
dflet 0:50cedd586816 554 //*****************************************************************************
dflet 0:50cedd586816 555 //
dflet 0:50cedd586816 556 //! JfifApp0Marker
dflet 0:50cedd586816 557 //!
dflet 0:50cedd586816 558 //! \param Pointer to the output buffer
dflet 0:50cedd586816 559 //! \return Length of the Marker
dflet 0:50cedd586816 560 //
dflet 0:50cedd586816 561 //*****************************************************************************
dflet 0:50cedd586816 562
dflet 0:50cedd586816 563 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 564 static int JfifApp0Marker(char *pbuf)
dflet 0:50cedd586816 565 {
dflet 6:37fb696395d7 566 Uart_Write((uint8_t*)"JfifApp0Marker \n\r");
dflet 0:50cedd586816 567 *pbuf++= 0xFF; // APP0 marker
dflet 0:50cedd586816 568 *pbuf++= 0xE0;
dflet 0:50cedd586816 569 *pbuf++= 0x00; // length
dflet 0:50cedd586816 570 *pbuf++= 0x10;
dflet 0:50cedd586816 571 *pbuf++= 0x4A; // JFIF identifier
dflet 0:50cedd586816 572 *pbuf++= 0x46;
dflet 0:50cedd586816 573 *pbuf++= 0x49;
dflet 0:50cedd586816 574 *pbuf++= 0x46;
dflet 0:50cedd586816 575 *pbuf++= 0x00;
dflet 0:50cedd586816 576 *pbuf++= 0x01; // version
dflet 0:50cedd586816 577 *pbuf++= 0x02;
dflet 0:50cedd586816 578 *pbuf++= 0x00; // units
dflet 0:50cedd586816 579 *pbuf++= 0x00; // X density
dflet 0:50cedd586816 580 *pbuf++= 0x01;
dflet 0:50cedd586816 581 *pbuf++= 0x00; // Y density
dflet 0:50cedd586816 582 *pbuf++= 0x01;
dflet 0:50cedd586816 583 *pbuf++= 0x00; // X thumbnail
dflet 0:50cedd586816 584 *pbuf++= 0x00; // Y thumbnail
dflet 0:50cedd586816 585 return 18;
dflet 0:50cedd586816 586 }
dflet 0:50cedd586816 587
dflet 0:50cedd586816 588
dflet 0:50cedd586816 589 //*****************************************************************************
dflet 0:50cedd586816 590 //
dflet 0:50cedd586816 591 //! FrameHeaderMarker
dflet 0:50cedd586816 592 //!
dflet 0:50cedd586816 593 //! \param1 pointer to the output buffer
dflet 0:50cedd586816 594 //! \param2 width
dflet 0:50cedd586816 595 //! \param3 height
dflet 0:50cedd586816 596 //! \param4 format
dflet 0:50cedd586816 597 //!
dflet 0:50cedd586816 598 //! \return Length of the header marker
dflet 0:50cedd586816 599 //
dflet 0:50cedd586816 600 //*****************************************************************************
dflet 0:50cedd586816 601 static int FrameHeaderMarker(char *pbuf, int width, int height, int format)
dflet 0:50cedd586816 602 {
dflet 6:37fb696395d7 603 Uart_Write((uint8_t*)"FrameHeaderMarker \n\r");
dflet 0:50cedd586816 604 int length;
dflet 0:50cedd586816 605 if (format == FORMAT_MONOCHROME)
dflet 0:50cedd586816 606 length = 11;
dflet 0:50cedd586816 607 else
dflet 0:50cedd586816 608 length = 17;
dflet 0:50cedd586816 609
dflet 0:50cedd586816 610 *pbuf++= 0xFF; // start of frame: baseline DCT
dflet 0:50cedd586816 611 *pbuf++= 0xC0;
dflet 0:50cedd586816 612 *pbuf++= length>>8; // length field
dflet 0:50cedd586816 613 *pbuf++= length&0xFF;
dflet 0:50cedd586816 614 *pbuf++= 0x08; // sample precision
dflet 0:50cedd586816 615 *pbuf++= height>>8; // number of lines
dflet 0:50cedd586816 616 *pbuf++= height&0xFF;
dflet 0:50cedd586816 617 *pbuf++= width>>8; // number of samples per line
dflet 0:50cedd586816 618 *pbuf++= width&0xFF;
dflet 0:50cedd586816 619
dflet 0:50cedd586816 620 if (format == FORMAT_MONOCHROME) // monochrome
dflet 0:50cedd586816 621 {
dflet 0:50cedd586816 622 *pbuf++= 0x01; // number of image components in frame
dflet 0:50cedd586816 623 *pbuf++= 0x00; // component identifier: Y
dflet 0:50cedd586816 624 *pbuf++= 0x11; // horizontal | vertical sampling factor: Y
dflet 0:50cedd586816 625 *pbuf++= 0x00; // quantization table selector: Y
dflet 0:50cedd586816 626 }
dflet 0:50cedd586816 627 else if (format == FORMAT_YCBCR422) // YCbCr422
dflet 0:50cedd586816 628 {
dflet 0:50cedd586816 629 *pbuf++= 0x03; // number of image components in frame
dflet 0:50cedd586816 630 *pbuf++= 0x00; // component identifier: Y
dflet 0:50cedd586816 631 *pbuf++= 0x21; // horizontal | vertical sampling factor: Y
dflet 0:50cedd586816 632 *pbuf++= 0x00; // quantization table selector: Y
dflet 0:50cedd586816 633 *pbuf++= 0x01; // component identifier: Cb
dflet 0:50cedd586816 634 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cb
dflet 0:50cedd586816 635 *pbuf++= 0x01; // quantization table selector: Cb
dflet 0:50cedd586816 636 *pbuf++= 0x02; // component identifier: Cr
dflet 0:50cedd586816 637 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cr
dflet 0:50cedd586816 638 *pbuf++= 0x01; // quantization table selector: Cr
dflet 0:50cedd586816 639 }
dflet 0:50cedd586816 640 else // YCbCr420
dflet 0:50cedd586816 641 {
dflet 0:50cedd586816 642 *pbuf++= 0x03; // number of image components in frame
dflet 0:50cedd586816 643 *pbuf++= 0x00; // component identifier: Y
dflet 0:50cedd586816 644 *pbuf++= 0x22; // horizontal | vertical sampling factor: Y
dflet 0:50cedd586816 645 *pbuf++= 0x00; // quantization table selector: Y
dflet 0:50cedd586816 646 *pbuf++= 0x01; // component identifier: Cb
dflet 0:50cedd586816 647 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cb
dflet 0:50cedd586816 648 *pbuf++= 0x01; // quantization table selector: Cb
dflet 0:50cedd586816 649 *pbuf++= 0x02; // component identifier: Cr
dflet 0:50cedd586816 650 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cr
dflet 0:50cedd586816 651 *pbuf++= 0x01; // quantization table selector: Cr
dflet 0:50cedd586816 652 }
dflet 0:50cedd586816 653
dflet 0:50cedd586816 654 return (length+2);
dflet 0:50cedd586816 655 }
dflet 0:50cedd586816 656
dflet 0:50cedd586816 657
dflet 0:50cedd586816 658 //*****************************************************************************
dflet 0:50cedd586816 659 //
dflet 0:50cedd586816 660 //! ScanHeaderMarker
dflet 0:50cedd586816 661 //!
dflet 0:50cedd586816 662 //! \param1 pointer to output buffer
dflet 0:50cedd586816 663 //! \param2 Format
dflet 0:50cedd586816 664 //!
dflet 0:50cedd586816 665 //! \return Length
dflet 0:50cedd586816 666 //
dflet 0:50cedd586816 667 //*****************************************************************************
dflet 0:50cedd586816 668 static int ScanHeaderMarker(char *pbuf, int format)
dflet 0:50cedd586816 669 {
dflet 0:50cedd586816 670 int length;
dflet 0:50cedd586816 671 if (format == FORMAT_MONOCHROME)
dflet 0:50cedd586816 672 length = 8;
dflet 0:50cedd586816 673 else
dflet 0:50cedd586816 674 length = 12;
dflet 0:50cedd586816 675
dflet 0:50cedd586816 676 *pbuf++= 0xFF; // start of scan
dflet 0:50cedd586816 677 *pbuf++= 0xDA;
dflet 0:50cedd586816 678 *pbuf++= length>>8; // length field
dflet 0:50cedd586816 679 *pbuf++= length&0xFF;
dflet 0:50cedd586816 680 if (format == FORMAT_MONOCHROME)// monochrome
dflet 0:50cedd586816 681 {
dflet 0:50cedd586816 682 *pbuf++= 0x01; // number of image components in scan
dflet 0:50cedd586816 683 *pbuf++= 0x00; // scan component selector: Y
dflet 0:50cedd586816 684 *pbuf++= 0x00; // DC | AC huffman table selector: Y
dflet 0:50cedd586816 685 }
dflet 0:50cedd586816 686 else // YCbCr
dflet 0:50cedd586816 687 {
dflet 0:50cedd586816 688 *pbuf++= 0x03; // number of image components in scan
dflet 0:50cedd586816 689 *pbuf++= 0x00; // scan component selector: Y
dflet 0:50cedd586816 690 *pbuf++= 0x00; // DC | AC huffman table selector: Y
dflet 0:50cedd586816 691 *pbuf++= 0x01; // scan component selector: Cb
dflet 0:50cedd586816 692 *pbuf++= 0x11; // DC | AC huffman table selector: Cb
dflet 0:50cedd586816 693 *pbuf++= 0x02; // scan component selector: Cr
dflet 0:50cedd586816 694 *pbuf++= 0x11; // DC | AC huffman table selector: Cr
dflet 0:50cedd586816 695 }
dflet 0:50cedd586816 696
dflet 0:50cedd586816 697 *pbuf++= 0x00; // Ss: start of predictor selector
dflet 0:50cedd586816 698 *pbuf++= 0x3F; // Se: end of spectral selector
dflet 0:50cedd586816 699 *pbuf++= 0x00; // Ah | Al: successive approximation bit position
dflet 0:50cedd586816 700
dflet 0:50cedd586816 701 return (length+2);
dflet 0:50cedd586816 702 }
dflet 0:50cedd586816 703
dflet 0:50cedd586816 704
dflet 0:50cedd586816 705 //*****************************************************************************
dflet 0:50cedd586816 706 //
dflet 0:50cedd586816 707 //! DefineQuantizationTableMarker
dflet 0:50cedd586816 708 //! Calculate and write the quantisation tables
dflet 0:50cedd586816 709 //! qscale is the customised scaling factor - see MT9D131 developer guide page 78
dflet 0:50cedd586816 710 //!
dflet 0:50cedd586816 711 //! \param1 pointer to the output buffer
dflet 0:50cedd586816 712 //! \param2 Quantization Scale
dflet 0:50cedd586816 713 //! \param3 Format
dflet 0:50cedd586816 714 //!
dflet 0:50cedd586816 715 //! \return Length of the Marker
dflet 0:50cedd586816 716 //
dflet 0:50cedd586816 717 //*****************************************************************************
dflet 0:50cedd586816 718 static int DefineQuantizationTableMarker (unsigned char *pbuf, int qscale, int format)
dflet 0:50cedd586816 719 {
dflet 6:37fb696395d7 720 Uart_Write((uint8_t*)"DefineQuantizationTableMarker \n\r");
dflet 0:50cedd586816 721 int i, length, temp;
dflet 0:50cedd586816 722 unsigned char newtbl[64]; // temporary array to store scaled zigzagged quant entries
dflet 0:50cedd586816 723
dflet 0:50cedd586816 724 if (format == FORMAT_MONOCHROME) // monochrome
dflet 0:50cedd586816 725 length = 67;
dflet 0:50cedd586816 726 else
dflet 0:50cedd586816 727 length = 132;
dflet 0:50cedd586816 728
dflet 0:50cedd586816 729 *pbuf++ = 0xFF; // define quantization table marker
dflet 0:50cedd586816 730 *pbuf++ = 0xDB;
dflet 0:50cedd586816 731 *pbuf++ = length>>8; // length field
dflet 0:50cedd586816 732 *pbuf++ = length&0xFF;
dflet 0:50cedd586816 733 *pbuf++ = 0; // quantization table precision | identifier for luminance
dflet 0:50cedd586816 734
dflet 0:50cedd586816 735 // calculate scaled zigzagged luminance quantisation table entries
dflet 0:50cedd586816 736 for (i=0; i<64; i++) {
dflet 0:50cedd586816 737 temp = (JPEG_StdQuantTblY[i] * qscale + 16) / 32;
dflet 0:50cedd586816 738 // limit the values to the valid range
dflet 0:50cedd586816 739 if (temp <= 0)
dflet 0:50cedd586816 740 temp = 1;
dflet 0:50cedd586816 741 if (temp > 255)
dflet 0:50cedd586816 742 temp = 255;
dflet 0:50cedd586816 743 newtbl[zigzag[i]] = (unsigned char) temp;
dflet 0:50cedd586816 744 }
dflet 0:50cedd586816 745
dflet 0:50cedd586816 746 // write the resulting luminance quant table to the output buffer
dflet 0:50cedd586816 747 for (i=0; i<64; i++)
dflet 0:50cedd586816 748 *pbuf++ = newtbl[i];
dflet 0:50cedd586816 749
dflet 0:50cedd586816 750 // if format is monochrome we're finished, otherwise continue on, to do chrominance quant table
dflet 0:50cedd586816 751 if (format == FORMAT_MONOCHROME)
dflet 0:50cedd586816 752 return (length+2);
dflet 0:50cedd586816 753
dflet 0:50cedd586816 754 *pbuf++ = 1; // quantization table precision | identifier for chrominance
dflet 0:50cedd586816 755
dflet 0:50cedd586816 756 // calculate scaled zigzagged chrominance quantisation table entries
dflet 0:50cedd586816 757 for (i=0; i<64; i++) {
dflet 0:50cedd586816 758 temp = (JPEG_StdQuantTblC[i] * qscale + 16) / 32;
dflet 0:50cedd586816 759 // limit the values to the valid range
dflet 0:50cedd586816 760 if (temp <= 0)
dflet 0:50cedd586816 761 temp = 1;
dflet 0:50cedd586816 762 if (temp > 255)
dflet 0:50cedd586816 763 temp = 255;
dflet 0:50cedd586816 764 newtbl[zigzag[i]] = (unsigned char) temp;
dflet 0:50cedd586816 765 }
dflet 0:50cedd586816 766
dflet 0:50cedd586816 767 // write the resulting chrominance quant table to the output buffer
dflet 0:50cedd586816 768 for (i=0; i<64; i++)
dflet 0:50cedd586816 769 *pbuf++ = newtbl[i];
dflet 0:50cedd586816 770
dflet 0:50cedd586816 771 return (length+2);
dflet 0:50cedd586816 772 }
dflet 0:50cedd586816 773
dflet 0:50cedd586816 774
dflet 0:50cedd586816 775 //*****************************************************************************
dflet 0:50cedd586816 776 //
dflet 0:50cedd586816 777 //! DefineHuffmanTableMarkerDC
dflet 0:50cedd586816 778 //!
dflet 0:50cedd586816 779 //! \param1 pointer to Marker buffer
dflet 0:50cedd586816 780 //! \param2 Huffman table
dflet 0:50cedd586816 781 //! \param3 Class Identifier
dflet 0:50cedd586816 782 //!
dflet 0:50cedd586816 783 //! \return Length of the marker
dflet 0:50cedd586816 784 //
dflet 0:50cedd586816 785 //*****************************************************************************
dflet 0:50cedd586816 786 static int DefineHuffmanTableMarkerDC(char *pbuf, unsigned int *htable, int class_id)
dflet 0:50cedd586816 787 {
dflet 6:37fb696395d7 788 Uart_Write((uint8_t*)"DefineHuffmanTableMarkerDC \n\r");
dflet 0:50cedd586816 789 int i, l, count;
dflet 0:50cedd586816 790 int length;
dflet 0:50cedd586816 791 char *plength;
dflet 0:50cedd586816 792
dflet 0:50cedd586816 793 *pbuf++= 0xFF; // define huffman table marker
dflet 0:50cedd586816 794 *pbuf++= 0xC4;
dflet 0:50cedd586816 795 plength = pbuf; // place holder for length field
dflet 0:50cedd586816 796 *pbuf++;
dflet 0:50cedd586816 797 *pbuf++;
dflet 0:50cedd586816 798 *pbuf++= class_id; // huffman table class | identifier
dflet 0:50cedd586816 799
dflet 0:50cedd586816 800 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 801 {
dflet 0:50cedd586816 802 count = 0;
dflet 0:50cedd586816 803 for (i = 0; i < 12; i++)
dflet 0:50cedd586816 804 {
dflet 0:50cedd586816 805 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 806 count++;
dflet 0:50cedd586816 807 }
dflet 0:50cedd586816 808 *pbuf++= count; // number of huffman codes of length l+1
dflet 0:50cedd586816 809 }
dflet 0:50cedd586816 810
dflet 0:50cedd586816 811 length = 19;
dflet 0:50cedd586816 812 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 813 {
dflet 0:50cedd586816 814 for (i = 0; i < 12; i++)
dflet 0:50cedd586816 815 {
dflet 0:50cedd586816 816 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 817 {
dflet 0:50cedd586816 818 *pbuf++= i; // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 819 length++;
dflet 0:50cedd586816 820 }
dflet 0:50cedd586816 821 }
dflet 0:50cedd586816 822 }
dflet 0:50cedd586816 823
dflet 0:50cedd586816 824 *plength++= length>>8; // length field
dflet 0:50cedd586816 825 *plength = length&0xFF;
dflet 0:50cedd586816 826
dflet 0:50cedd586816 827 return (length + 2);
dflet 0:50cedd586816 828 }
dflet 0:50cedd586816 829
dflet 0:50cedd586816 830
dflet 0:50cedd586816 831 //*****************************************************************************
dflet 0:50cedd586816 832 //
dflet 0:50cedd586816 833 //! DefineHuffmanTableMarkerAC
dflet 0:50cedd586816 834 //! 1. Establishes connection w/ AP//
dflet 0:50cedd586816 835 //! 2. Initializes the camera sub-components//! GPIO Enable & Configuration
dflet 0:50cedd586816 836 //! 3. Listens and processes the image capture requests from user-applications
dflet 0:50cedd586816 837 //!
dflet 0:50cedd586816 838 //! \param1 pointer to Marker buffer
dflet 0:50cedd586816 839 //! \param2 Huffman table
dflet 0:50cedd586816 840 //! \param3 Class Identifier
dflet 0:50cedd586816 841 //!
dflet 0:50cedd586816 842 //! \return Length of the Marker
dflet 0:50cedd586816 843 //!
dflet 0:50cedd586816 844 //
dflet 0:50cedd586816 845 //*****************************************************************************
dflet 0:50cedd586816 846 static int DefineHuffmanTableMarkerAC(char *pbuf, unsigned int *htable, int class_id)
dflet 0:50cedd586816 847 {
dflet 6:37fb696395d7 848 Uart_Write((uint8_t*)"DefineHuffmanTableMarkerAC \n\r");
dflet 0:50cedd586816 849 int i, l, a, b, count;
dflet 0:50cedd586816 850 char *plength;
dflet 0:50cedd586816 851 int length;
dflet 0:50cedd586816 852
dflet 0:50cedd586816 853 *pbuf++= 0xFF; // define huffman table marker
dflet 0:50cedd586816 854 *pbuf++= 0xC4;
dflet 0:50cedd586816 855 plength = pbuf; // place holder for length field
dflet 0:50cedd586816 856 *pbuf++;
dflet 0:50cedd586816 857 *pbuf++;
dflet 0:50cedd586816 858 *pbuf++= class_id; // huffman table class | identifier
dflet 0:50cedd586816 859
dflet 0:50cedd586816 860 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 861 {
dflet 0:50cedd586816 862 count = 0;
dflet 0:50cedd586816 863 for (i = 0; i < 162; i++)
dflet 0:50cedd586816 864 {
dflet 0:50cedd586816 865 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 866 count++;
dflet 0:50cedd586816 867 }
dflet 0:50cedd586816 868
dflet 0:50cedd586816 869 *pbuf++= count; // number of huffman codes of length l+1
dflet 0:50cedd586816 870 }
dflet 0:50cedd586816 871
dflet 0:50cedd586816 872 length = 19;
dflet 0:50cedd586816 873 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 874 {
dflet 0:50cedd586816 875 // check EOB: 0|0
dflet 0:50cedd586816 876 if ((htable[160] >> 8) == l)
dflet 0:50cedd586816 877 {
dflet 0:50cedd586816 878 *pbuf++= 0; // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 879 length++;
dflet 0:50cedd586816 880 }
dflet 0:50cedd586816 881
dflet 0:50cedd586816 882 // check HUFFVAL: 0|1 to E|A
dflet 0:50cedd586816 883 for (i = 0; i < 150; i++)
dflet 0:50cedd586816 884 {
dflet 0:50cedd586816 885 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 886 {
dflet 0:50cedd586816 887 a = i/10;
dflet 0:50cedd586816 888 b = i%10;
dflet 0:50cedd586816 889 *pbuf++= (a<<4)|(b+1); // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 890 length++;
dflet 0:50cedd586816 891 }
dflet 0:50cedd586816 892 }
dflet 0:50cedd586816 893
dflet 0:50cedd586816 894 // check ZRL: F|0
dflet 0:50cedd586816 895 if ((htable[161] >> 8) == l)
dflet 0:50cedd586816 896 {
dflet 0:50cedd586816 897 *pbuf++= 0xF0; // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 898 length++;
dflet 0:50cedd586816 899 }
dflet 0:50cedd586816 900
dflet 0:50cedd586816 901 // check HUFFVAL: F|1 to F|A
dflet 0:50cedd586816 902 for (i = 150; i < 160; i++)
dflet 0:50cedd586816 903 {
dflet 0:50cedd586816 904 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 905 {
dflet 0:50cedd586816 906 a = i/10;
dflet 0:50cedd586816 907 b = i%10;
dflet 0:50cedd586816 908 *pbuf++= (a<<4)|(b+1); // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 909 length++;
dflet 0:50cedd586816 910 }
dflet 0:50cedd586816 911 }
dflet 0:50cedd586816 912 }
dflet 0:50cedd586816 913
dflet 0:50cedd586816 914 *plength++= length>>8; // length field
dflet 0:50cedd586816 915 *plength = length&0xFF;
dflet 0:50cedd586816 916 return (length + 2);
dflet 0:50cedd586816 917 }
dflet 0:50cedd586816 918
dflet 0:50cedd586816 919
dflet 0:50cedd586816 920 //*****************************************************************************
dflet 0:50cedd586816 921 //
dflet 0:50cedd586816 922 //! DefineRestartIntervalMarker
dflet 0:50cedd586816 923 //!
dflet 0:50cedd586816 924 //! \param1 pointer to Marker buffer
dflet 0:50cedd586816 925 //! \param2 return interval
dflet 0:50cedd586816 926 //!
dflet 0:50cedd586816 927 //! \return Length
dflet 0:50cedd586816 928 //
dflet 0:50cedd586816 929 //*****************************************************************************
dflet 0:50cedd586816 930 static int DefineRestartIntervalMarker(char *pbuf, int ri)
dflet 0:50cedd586816 931 {
dflet 6:37fb696395d7 932 Uart_Write((uint8_t*)"DefineRestartIntervalMarker \n\r");
dflet 0:50cedd586816 933 *pbuf++= 0xFF; // define restart interval marker
dflet 0:50cedd586816 934 *pbuf++= 0xDD;
dflet 0:50cedd586816 935 *pbuf++= 0x00; // length
dflet 0:50cedd586816 936 *pbuf++= 0x04;
dflet 0:50cedd586816 937 *pbuf++= ri >> 8; // restart interval
dflet 0:50cedd586816 938 *pbuf++= ri & 0xFF;
dflet 0:50cedd586816 939 return 6;
dflet 0:50cedd586816 940 }
dflet 0:50cedd586816 941 //*****************************************************************************
dflet 0:50cedd586816 942 //
dflet 0:50cedd586816 943 //! CreateJpegHeader
dflet 0:50cedd586816 944 //! Create JPEG Header in JFIF format
dflet 0:50cedd586816 945 //!
dflet 0:50cedd586816 946 //! \param1 header - pointer to JPEG header buffer
dflet 0:50cedd586816 947 //! \param2 width - image width
dflet 0:50cedd586816 948 //! \param3 height - image height
dflet 0:50cedd586816 949 //! \param4 format - color format (0 = YCbCr422, 1 = YCbCr420, 2 = monochrome)
dflet 0:50cedd586816 950 //! \param5 restart_int - restart marker interval
dflet 0:50cedd586816 951 //! \param6 qscale - quantization table scaling factor
dflet 0:50cedd586816 952 //!
dflet 0:50cedd586816 953 //! \return length of JPEG header (bytes)
dflet 0:50cedd586816 954 //
dflet 0:50cedd586816 955 //*****************************************************************************
dflet 0:50cedd586816 956
dflet 0:50cedd586816 957 static int CreateJpegHeader(char *header, int width, int height,
dflet 0:50cedd586816 958 int format, int restart_int, int qscale)
dflet 0:50cedd586816 959 {
dflet 0:50cedd586816 960 Uart_Write((uint8_t*)"CreateJpegHeader \n\r");
dflet 0:50cedd586816 961 char *pbuf = header;
dflet 0:50cedd586816 962 int length;
dflet 0:50cedd586816 963
dflet 0:50cedd586816 964 // SOI
dflet 0:50cedd586816 965 *pbuf++= 0xFF;
dflet 0:50cedd586816 966 *pbuf++= 0xD8;
dflet 0:50cedd586816 967 length = 2;
dflet 0:50cedd586816 968
dflet 0:50cedd586816 969 // JFIF APP0
dflet 0:50cedd586816 970 length += JfifApp0Marker(pbuf);
dflet 0:50cedd586816 971
dflet 0:50cedd586816 972 // Quantization Tables
dflet 0:50cedd586816 973 pbuf = header + length;
dflet 0:50cedd586816 974 length += DefineQuantizationTableMarker((unsigned char *)pbuf, qscale, format);
dflet 0:50cedd586816 975
dflet 0:50cedd586816 976 // Frame Header
dflet 0:50cedd586816 977 pbuf = header + length;
dflet 0:50cedd586816 978 length += FrameHeaderMarker(pbuf, width, height, format);
dflet 0:50cedd586816 979
dflet 0:50cedd586816 980 // Huffman Table DC 0 for Luma
dflet 0:50cedd586816 981 pbuf = header + length;
dflet 0:50cedd586816 982 length += DefineHuffmanTableMarkerDC(pbuf, &JPEG_StdHuffmanTbl[352], 0x00);
dflet 0:50cedd586816 983
dflet 0:50cedd586816 984 // Huffman Table AC 0 for Luma
dflet 0:50cedd586816 985 pbuf = header + length;
dflet 0:50cedd586816 986 length += DefineHuffmanTableMarkerAC(pbuf, &JPEG_StdHuffmanTbl[0], 0x10);
dflet 0:50cedd586816 987
dflet 0:50cedd586816 988 if (format != FORMAT_MONOCHROME)// YCbCr
dflet 0:50cedd586816 989 {
dflet 0:50cedd586816 990 // Huffman Table DC 1 for Chroma
dflet 0:50cedd586816 991 pbuf = header + length;
dflet 0:50cedd586816 992 length += DefineHuffmanTableMarkerDC(pbuf, &JPEG_StdHuffmanTbl[368], 0x01);
dflet 0:50cedd586816 993
dflet 0:50cedd586816 994 // Huffman Table AC 1 for Chroma
dflet 0:50cedd586816 995 pbuf = header + length;
dflet 0:50cedd586816 996 length += DefineHuffmanTableMarkerAC(pbuf, &JPEG_StdHuffmanTbl[176], 0x11);
dflet 0:50cedd586816 997 }
dflet 0:50cedd586816 998
dflet 0:50cedd586816 999 // Restart Interval
dflet 0:50cedd586816 1000 if (restart_int > 0)
dflet 0:50cedd586816 1001 {
dflet 0:50cedd586816 1002 pbuf = header + length;
dflet 0:50cedd586816 1003 length += DefineRestartIntervalMarker(pbuf, restart_int);
dflet 0:50cedd586816 1004 }
dflet 0:50cedd586816 1005
dflet 0:50cedd586816 1006 // Scan Header
dflet 0:50cedd586816 1007 pbuf = header + length;
dflet 0:50cedd586816 1008 length += ScanHeaderMarker(pbuf, format);
dflet 0:50cedd586816 1009
dflet 0:50cedd586816 1010 return length;
dflet 0:50cedd586816 1011 }
dflet 6:37fb696395d7 1012 #endif// jpeg defined
dflet 0:50cedd586816 1013
dflet 0:50cedd586816 1014
dflet 0:50cedd586816 1015
dflet 0:50cedd586816 1016 //*****************************************************************************
dflet 0:50cedd586816 1017 //
dflet 0:50cedd586816 1018 // Close the Doxygen group.
dflet 0:50cedd586816 1019 //! @}
dflet 0:50cedd586816 1020 //
dflet 0:50cedd586816 1021 //*****************************************************************************
dflet 0:50cedd586816 1022