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@8:529a12812c53, 2015-07-06 (annotated)

Committer:
dflet
Date:
Mon Jul 06 11:03:14 2015 +0000
Revision:
8:529a12812c53
Parent:
7:a069c1750fbc
Child:
9:b7c6e7303df5
WIP commit 9

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 7:a069c1750fbc 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 7:a069c1750fbc 106 uint32_t 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 7:a069c1750fbc 334 // memset(g_image.g_image_buffer,0xF80F,sizeof(g_image.g_image_buffer));
dflet 7:a069c1750fbc 335 memset(g_image.g_image_buffer,0x0F,sizeof(g_image.g_image_buffer));
dflet 2:b92db44a29b4 336 p_buffer = &(g_image.g_image_buffer[0]);
dflet 0:50cedd586816 337 DMAConfig();
dflet 0:50cedd586816 338
dflet 0:50cedd586816 339 //
dflet 0:50cedd586816 340 // Perform Image Capture
dflet 0:50cedd586816 341 //
dflet 8:529a12812c53 342
dflet 8:529a12812c53 343 HAL_DCMI_Start_DMA(&phdcmi, DCMI_MODE_SNAPSHOT, (uint32_t)p_buffer, FRAME_SIZE_IN_BYTES/4);
dflet 2:b92db44a29b4 344 g_frame_end = 1;
dflet 2:b92db44a29b4 345
dflet 2:b92db44a29b4 346 /* Read the number of data items transferred */
dflet 7:a069c1750fbc 347 g_frame_size_in_bytes = (FRAME_SIZE_IN_BYTES - (hdma_dcmi.Instance->NDTR*4));
dflet 5:75fcfdb7cae7 348 g_dma_txn_done = 1;
dflet 5:75fcfdb7cae7 349 g_total_dma_intrpts = 1;
dflet 5:75fcfdb7cae7 350
dflet 8:529a12812c53 351 uint8_t* Image_Array = reinterpret_cast<uint8_t*>(&g_image.g_image_buffer);
dflet 8:529a12812c53 352 #if 0
dflet 8:529a12812c53 353 for(int i =0;i< 100;i++){
dflet 8:529a12812c53 354 HttpDebug("0x%x ",Image_Array[i]);
dflet 8:529a12812c53 355 }
dflet 8:529a12812c53 356 #endif//if 0
dflet 0:50cedd586816 357 //
dflet 0:50cedd586816 358 // Create JPEG Header
dflet 0:50cedd586816 359 //
dflet 0:50cedd586816 360 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 361 memset(g_image.g_header, '\0', sizeof(g_image.g_header));
dflet 0:50cedd586816 362 g_header_length = CreateJpegHeader((char *)&(g_image.g_header[0]), PIXELS_IN_X_AXIS,
dflet 0:50cedd586816 363 PIXELS_IN_Y_AXIS, 0, 0x0020, 9);
dflet 0:50cedd586816 364
dflet 8:529a12812c53 365 // This pushes the header to the start of the array so that the entire picture can be contiguous in memory
dflet 8:529a12812c53 366 memcpy(Image_Array + g_header_length,Image_Array,g_frame_size_in_bytes);
dflet 8:529a12812c53 367 memcpy(Image_Array,g_image.g_header,g_header_length);
dflet 8:529a12812c53 368 #if 0
dflet 8:529a12812c53 369 for(int i =625;i< 725;i++){
dflet 8:529a12812c53 370 HttpDebug("0x%x ",Image_Array[i]);
dflet 8:529a12812c53 371 }
dflet 8:529a12812c53 372 #endif//if 0
dflet 0:50cedd586816 373
dflet 8:529a12812c53 374 #endif//ENABLE_JPEG
dflet 8:529a12812c53 375
dflet 8:529a12812c53 376 *WriteBuffer = (char*)Image_Array;
dflet 8:529a12812c53 377
dflet 0:50cedd586816 378 return(g_header_length + g_frame_size_in_bytes);
dflet 0:50cedd586816 379 }
dflet 0:50cedd586816 380 //*****************************************************************************
dflet 0:50cedd586816 381 //
dflet 0:50cedd586816 382 //! DMA Config
dflet 6:37fb696395d7 383 //! Initialize the DMA\DCMI and Setup the DMA transfer
dflet 0:50cedd586816 384 //!
dflet 0:50cedd586816 385 //! \param None
dflet 0:50cedd586816 386 //! \return None
dflet 0:50cedd586816 387 //
dflet 0:50cedd586816 388 //*****************************************************************************
dflet 0:50cedd586816 389 static void DMAConfig()
dflet 0:50cedd586816 390 {
dflet 6:37fb696395d7 391 // Uart_Write((uint8_t*)"DMAConfig \n\r");
dflet 5:75fcfdb7cae7 392
dflet 5:75fcfdb7cae7 393 /* Peripheral DMA init*/
dflet 5:75fcfdb7cae7 394 /* DMA controller clock enable */
dflet 5:75fcfdb7cae7 395 __DMA2_CLK_ENABLE();
dflet 5:75fcfdb7cae7 396
dflet 5:75fcfdb7cae7 397 hdma_dcmi.Instance = DMA2_Stream1;
dflet 5:75fcfdb7cae7 398 hdma_dcmi.Init.Channel = DMA_CHANNEL_1;
dflet 5:75fcfdb7cae7 399 hdma_dcmi.Init.Direction = DMA_PERIPH_TO_MEMORY;
dflet 5:75fcfdb7cae7 400 hdma_dcmi.Init.PeriphInc = DMA_PINC_DISABLE;
dflet 5:75fcfdb7cae7 401 hdma_dcmi.Init.MemInc = DMA_MINC_ENABLE;
dflet 5:75fcfdb7cae7 402 hdma_dcmi.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
dflet 5:75fcfdb7cae7 403 hdma_dcmi.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
dflet 7:a069c1750fbc 404 hdma_dcmi.Init.Mode = DMA_CIRCULAR;
dflet 5:75fcfdb7cae7 405 hdma_dcmi.Init.Priority = DMA_PRIORITY_HIGH;
dflet 7:a069c1750fbc 406 hdma_dcmi.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
dflet 5:75fcfdb7cae7 407 hdma_dcmi.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
dflet 5:75fcfdb7cae7 408 hdma_dcmi.Init.MemBurst = DMA_MBURST_SINGLE;
dflet 5:75fcfdb7cae7 409 hdma_dcmi.Init.PeriphBurst = DMA_PBURST_SINGLE;
dflet 5:75fcfdb7cae7 410
dflet 5:75fcfdb7cae7 411 __HAL_LINKDMA(&phdcmi,DMA_Handle,hdma_dcmi);
dflet 5:75fcfdb7cae7 412
dflet 5:75fcfdb7cae7 413 /* DMA interrupt init */
dflet 7:a069c1750fbc 414 HAL_NVIC_SetPriority(DMA2_Stream1_IRQn, 1, 0);
dflet 5:75fcfdb7cae7 415 HAL_NVIC_EnableIRQ(DMA2_Stream1_IRQn);
dflet 5:75fcfdb7cae7 416
dflet 5:75fcfdb7cae7 417 phdcmi.Instance = DCMI;
dflet 5:75fcfdb7cae7 418 phdcmi.Init.SynchroMode = DCMI_SYNCHRO_HARDWARE;
dflet 7:a069c1750fbc 419 phdcmi.Init.PCKPolarity = DCMI_PCKPOLARITY_RISING;
dflet 5:75fcfdb7cae7 420 phdcmi.Init.VSPolarity = DCMI_VSPOLARITY_LOW;
dflet 5:75fcfdb7cae7 421 phdcmi.Init.HSPolarity = DCMI_HSPOLARITY_LOW;
dflet 5:75fcfdb7cae7 422 phdcmi.Init.CaptureRate = DCMI_CR_ALL_FRAME;
dflet 5:75fcfdb7cae7 423 phdcmi.Init.ExtendedDataMode = DCMI_EXTEND_DATA_8B;
dflet 5:75fcfdb7cae7 424 #ifdef ENABLE_JPEG
dflet 5:75fcfdb7cae7 425 phdcmi.Init.JPEGMode = DCMI_JPEG_ENABLE;
dflet 5:75fcfdb7cae7 426 #else
dflet 5:75fcfdb7cae7 427 phdcmi.Init.JPEGMode = DCMI_JPEG_DISABLE;
dflet 5:75fcfdb7cae7 428 #endif
dflet 5:75fcfdb7cae7 429
dflet 5:75fcfdb7cae7 430 GPIO_InitTypeDef GPIO_InitStruct;
dflet 5:75fcfdb7cae7 431 if(phdcmi.Instance==DCMI)
dflet 5:75fcfdb7cae7 432 {
dflet 5:75fcfdb7cae7 433 __GPIOE_CLK_ENABLE();
dflet 5:75fcfdb7cae7 434 __GPIOA_CLK_ENABLE();
dflet 5:75fcfdb7cae7 435 __GPIOB_CLK_ENABLE();
dflet 7:a069c1750fbc 436 __GPIOC_CLK_ENABLE();
dflet 5:75fcfdb7cae7 437
dflet 5:75fcfdb7cae7 438 /**MCO2 GPIO Configuration
dflet 7:a069c1750fbc 439 PC9 ------> RCC_MCO_2
dflet 7:a069c1750fbc 440 PA8 ------> RCC_MCO_1
dflet 5:75fcfdb7cae7 441 */
dflet 5:75fcfdb7cae7 442
dflet 5:75fcfdb7cae7 443 /* Peripheral clock enable */
dflet 5:75fcfdb7cae7 444 __DCMI_CLK_ENABLE();
dflet 5:75fcfdb7cae7 445
dflet 7:a069c1750fbc 446 /**DCMI GPIO Configuration
dflet 7:a069c1750fbc 447 PA9 ------> DCMI_D0
dflet 7:a069c1750fbc 448 PA10 ------> DCMI_D1
dflet 7:a069c1750fbc 449 PC8 ------> DCMI_D2
dflet 7:a069c1750fbc 450 PE1 ------> DCMI_D3
dflet 5:75fcfdb7cae7 451 PE4 ------> DCMI_D4
dflet 7:a069c1750fbc 452 PB6 ------> DCMI_D5
dflet 5:75fcfdb7cae7 453 PE5 ------> DCMI_D6
dflet 5:75fcfdb7cae7 454 PE6 ------> DCMI_D7
dflet 7:a069c1750fbc 455 PA6 ------> DCMI_PIXCK
dflet 5:75fcfdb7cae7 456 PA4 ------> DCMI_HSYNC
dflet 7:a069c1750fbc 457 PB7 ------> DCMI_VSYNC
dflet 7:a069c1750fbc 458 PC9 ------> MCLK
dflet 5:75fcfdb7cae7 459 */
dflet 7:a069c1750fbc 460 /* D3 D4 D6 D7 */
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 7:a069c1750fbc 463 GPIO_InitStruct.Pull = GPIO_PULLUP;
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 7:a069c1750fbc 467
dflet 7:a069c1750fbc 468 /* HSYNC PIXCLK D0 D1 */
dflet 5:75fcfdb7cae7 469 GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_6|GPIO_PIN_9|GPIO_PIN_10;
dflet 5:75fcfdb7cae7 470 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
dflet 7:a069c1750fbc 471 GPIO_InitStruct.Pull = GPIO_PULLUP;
dflet 5:75fcfdb7cae7 472 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
dflet 5:75fcfdb7cae7 473 GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
dflet 5:75fcfdb7cae7 474 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
dflet 7:a069c1750fbc 475
dflet 7:a069c1750fbc 476 /* D2 */
dflet 5:75fcfdb7cae7 477 GPIO_InitStruct.Pin = GPIO_PIN_8;
dflet 5:75fcfdb7cae7 478 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
dflet 7:a069c1750fbc 479 GPIO_InitStruct.Pull = GPIO_PULLUP;
dflet 5:75fcfdb7cae7 480 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
dflet 5:75fcfdb7cae7 481 GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
dflet 5:75fcfdb7cae7 482 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
dflet 5:75fcfdb7cae7 483
dflet 5:75fcfdb7cae7 484 /*Configure GPIO pin : GPIO_AF0_MCO PC9 */
dflet 5:75fcfdb7cae7 485 GPIO_InitStruct.Pin = GPIO_PIN_9;
dflet 5:75fcfdb7cae7 486 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
dflet 7:a069c1750fbc 487 GPIO_InitStruct.Pull = GPIO_PULLUP;
dflet 5:75fcfdb7cae7 488 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
dflet 5:75fcfdb7cae7 489 GPIO_InitStruct.Alternate = GPIO_AF0_MCO;
dflet 5:75fcfdb7cae7 490 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
dflet 7:a069c1750fbc 491
dflet 7:a069c1750fbc 492 /*Configure GPIO pin : PA8 */
dflet 7:a069c1750fbc 493 GPIO_InitStruct.Pin = GPIO_PIN_8;
dflet 7:a069c1750fbc 494 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
dflet 7:a069c1750fbc 495 GPIO_InitStruct.Pull = GPIO_NOPULL;
dflet 7:a069c1750fbc 496 GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
dflet 7:a069c1750fbc 497 GPIO_InitStruct.Alternate = GPIO_AF0_MCO;
dflet 7:a069c1750fbc 498 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
dflet 7:a069c1750fbc 499
dflet 7:a069c1750fbc 500 /* D5 VSYNC */
dflet 5:75fcfdb7cae7 501 GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
dflet 5:75fcfdb7cae7 502 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
dflet 7:a069c1750fbc 503 GPIO_InitStruct.Pull = GPIO_PULLUP;
dflet 5:75fcfdb7cae7 504 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
dflet 5:75fcfdb7cae7 505 GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
dflet 5:75fcfdb7cae7 506 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
dflet 5:75fcfdb7cae7 507
dflet 5:75fcfdb7cae7 508 /* System interrupt init*/
dflet 7:a069c1750fbc 509 HAL_NVIC_SetPriority(DCMI_IRQn, 1, 0);
dflet 5:75fcfdb7cae7 510 HAL_NVIC_EnableIRQ(DCMI_IRQn);
dflet 5:75fcfdb7cae7 511
dflet 5:75fcfdb7cae7 512 HAL_DMA_Init(&hdma_dcmi);
dflet 5:75fcfdb7cae7 513 HAL_DCMI_Init(&phdcmi);
dflet 5:75fcfdb7cae7 514
dflet 5:75fcfdb7cae7 515 }
dflet 0:50cedd586816 516
dflet 0:50cedd586816 517 g_dma_txn_done = 0;
dflet 0:50cedd586816 518 g_frame_size_in_bytes = 0;
dflet 0:50cedd586816 519 g_frame_end = 0;
dflet 0:50cedd586816 520 g_total_dma_intrpts = 0;
dflet 6:37fb696395d7 521 }
dflet 0:50cedd586816 522
dflet 5:75fcfdb7cae7 523 void HAL_DCMI_MspDeInit(DCMI_HandleTypeDef* phdcmi){
dflet 5:75fcfdb7cae7 524
dflet 5:75fcfdb7cae7 525 if(phdcmi->Instance==DCMI)
dflet 5:75fcfdb7cae7 526 {
dflet 0:50cedd586816 527
dflet 5:75fcfdb7cae7 528 /* Peripheral clock disable */
dflet 5:75fcfdb7cae7 529 __DCMI_CLK_DISABLE();
dflet 5:75fcfdb7cae7 530
dflet 5:75fcfdb7cae7 531 /**DCMI GPIO Configuration
dflet 5:75fcfdb7cae7 532 PE4 ------> DCMI_D4
dflet 5:75fcfdb7cae7 533 PE5 ------> DCMI_D6
dflet 5:75fcfdb7cae7 534 PE6 ------> DCMI_D7
dflet 5:75fcfdb7cae7 535 PA4 ------> DCMI_HSYNC
dflet 5:75fcfdb7cae7 536 PA6 ------> DCMI_PIXCK
dflet 5:75fcfdb7cae7 537 PC8 ------> DCMI_D2
dflet 5:75fcfdb7cae7 538 PE1 ------> DCMI_D3
dflet 5:75fcfdb7cae7 539 PA9 ------> DCMI_D0
dflet 5:75fcfdb7cae7 540 PA10 ------> DCMI_D1
dflet 5:75fcfdb7cae7 541 PB6 ------> DCMI_D5
dflet 5:75fcfdb7cae7 542 PB7 ------> DCMI_VSYNC
dflet 5:75fcfdb7cae7 543
dflet 5:75fcfdb7cae7 544 PE1 ------> MCO2
dflet 5:75fcfdb7cae7 545 */
dflet 5:75fcfdb7cae7 546
dflet 5:75fcfdb7cae7 547 HAL_GPIO_DeInit(GPIOE, GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6);
dflet 5:75fcfdb7cae7 548
dflet 5:75fcfdb7cae7 549 HAL_GPIO_DeInit(GPIOA, GPIO_PIN_4|GPIO_PIN_6|GPIO_PIN_9|GPIO_PIN_10);
dflet 5:75fcfdb7cae7 550
dflet 5:75fcfdb7cae7 551 HAL_GPIO_DeInit(GPIOC, GPIO_PIN_9|GPIO_PIN_8);
dflet 5:75fcfdb7cae7 552
dflet 5:75fcfdb7cae7 553 HAL_GPIO_DeInit(GPIOB, GPIO_PIN_6|GPIO_PIN_7);
dflet 5:75fcfdb7cae7 554
dflet 5:75fcfdb7cae7 555 /* Peripheral DMA DeInit*/
dflet 5:75fcfdb7cae7 556 HAL_DMA_DeInit(phdcmi->DMA_Handle);
dflet 5:75fcfdb7cae7 557
dflet 5:75fcfdb7cae7 558 /* Peripheral interrupt DeInit*/
dflet 5:75fcfdb7cae7 559 HAL_NVIC_DisableIRQ(DCMI_IRQn);
dflet 5:75fcfdb7cae7 560
dflet 5:75fcfdb7cae7 561 }
dflet 5:75fcfdb7cae7 562
dflet 5:75fcfdb7cae7 563 }
dflet 0:50cedd586816 564
dflet 0:50cedd586816 565 //*****************************************************************************
dflet 0:50cedd586816 566 //
dflet 0:50cedd586816 567 //! JfifApp0Marker
dflet 0:50cedd586816 568 //!
dflet 0:50cedd586816 569 //! \param Pointer to the output buffer
dflet 0:50cedd586816 570 //! \return Length of the Marker
dflet 0:50cedd586816 571 //
dflet 0:50cedd586816 572 //*****************************************************************************
dflet 0:50cedd586816 573
dflet 0:50cedd586816 574 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 575 static int JfifApp0Marker(char *pbuf)
dflet 0:50cedd586816 576 {
dflet 7:a069c1750fbc 577 // Uart_Write((uint8_t*)"JfifApp0Marker \n\r");
dflet 0:50cedd586816 578 *pbuf++= 0xFF; // APP0 marker
dflet 0:50cedd586816 579 *pbuf++= 0xE0;
dflet 0:50cedd586816 580 *pbuf++= 0x00; // length
dflet 0:50cedd586816 581 *pbuf++= 0x10;
dflet 0:50cedd586816 582 *pbuf++= 0x4A; // JFIF identifier
dflet 0:50cedd586816 583 *pbuf++= 0x46;
dflet 0:50cedd586816 584 *pbuf++= 0x49;
dflet 0:50cedd586816 585 *pbuf++= 0x46;
dflet 0:50cedd586816 586 *pbuf++= 0x00;
dflet 0:50cedd586816 587 *pbuf++= 0x01; // version
dflet 0:50cedd586816 588 *pbuf++= 0x02;
dflet 0:50cedd586816 589 *pbuf++= 0x00; // units
dflet 0:50cedd586816 590 *pbuf++= 0x00; // X density
dflet 0:50cedd586816 591 *pbuf++= 0x01;
dflet 0:50cedd586816 592 *pbuf++= 0x00; // Y density
dflet 0:50cedd586816 593 *pbuf++= 0x01;
dflet 0:50cedd586816 594 *pbuf++= 0x00; // X thumbnail
dflet 0:50cedd586816 595 *pbuf++= 0x00; // Y thumbnail
dflet 0:50cedd586816 596 return 18;
dflet 0:50cedd586816 597 }
dflet 0:50cedd586816 598
dflet 0:50cedd586816 599
dflet 0:50cedd586816 600 //*****************************************************************************
dflet 0:50cedd586816 601 //
dflet 0:50cedd586816 602 //! FrameHeaderMarker
dflet 0:50cedd586816 603 //!
dflet 0:50cedd586816 604 //! \param1 pointer to the output buffer
dflet 0:50cedd586816 605 //! \param2 width
dflet 0:50cedd586816 606 //! \param3 height
dflet 0:50cedd586816 607 //! \param4 format
dflet 0:50cedd586816 608 //!
dflet 0:50cedd586816 609 //! \return Length of the header marker
dflet 0:50cedd586816 610 //
dflet 0:50cedd586816 611 //*****************************************************************************
dflet 0:50cedd586816 612 static int FrameHeaderMarker(char *pbuf, int width, int height, int format)
dflet 0:50cedd586816 613 {
dflet 7:a069c1750fbc 614 // Uart_Write((uint8_t*)"FrameHeaderMarker \n\r");
dflet 0:50cedd586816 615 int length;
dflet 0:50cedd586816 616 if (format == FORMAT_MONOCHROME)
dflet 0:50cedd586816 617 length = 11;
dflet 0:50cedd586816 618 else
dflet 0:50cedd586816 619 length = 17;
dflet 0:50cedd586816 620
dflet 0:50cedd586816 621 *pbuf++= 0xFF; // start of frame: baseline DCT
dflet 0:50cedd586816 622 *pbuf++= 0xC0;
dflet 0:50cedd586816 623 *pbuf++= length>>8; // length field
dflet 0:50cedd586816 624 *pbuf++= length&0xFF;
dflet 0:50cedd586816 625 *pbuf++= 0x08; // sample precision
dflet 0:50cedd586816 626 *pbuf++= height>>8; // number of lines
dflet 0:50cedd586816 627 *pbuf++= height&0xFF;
dflet 0:50cedd586816 628 *pbuf++= width>>8; // number of samples per line
dflet 0:50cedd586816 629 *pbuf++= width&0xFF;
dflet 0:50cedd586816 630
dflet 0:50cedd586816 631 if (format == FORMAT_MONOCHROME) // monochrome
dflet 0:50cedd586816 632 {
dflet 0:50cedd586816 633 *pbuf++= 0x01; // number of image components in frame
dflet 0:50cedd586816 634 *pbuf++= 0x00; // component identifier: Y
dflet 0:50cedd586816 635 *pbuf++= 0x11; // horizontal | vertical sampling factor: Y
dflet 0:50cedd586816 636 *pbuf++= 0x00; // quantization table selector: Y
dflet 0:50cedd586816 637 }
dflet 0:50cedd586816 638 else if (format == FORMAT_YCBCR422) // YCbCr422
dflet 0:50cedd586816 639 {
dflet 0:50cedd586816 640 *pbuf++= 0x03; // number of image components in frame
dflet 0:50cedd586816 641 *pbuf++= 0x00; // component identifier: Y
dflet 0:50cedd586816 642 *pbuf++= 0x21; // horizontal | vertical sampling factor: Y
dflet 0:50cedd586816 643 *pbuf++= 0x00; // quantization table selector: Y
dflet 0:50cedd586816 644 *pbuf++= 0x01; // component identifier: Cb
dflet 0:50cedd586816 645 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cb
dflet 0:50cedd586816 646 *pbuf++= 0x01; // quantization table selector: Cb
dflet 0:50cedd586816 647 *pbuf++= 0x02; // component identifier: Cr
dflet 0:50cedd586816 648 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cr
dflet 0:50cedd586816 649 *pbuf++= 0x01; // quantization table selector: Cr
dflet 0:50cedd586816 650 }
dflet 0:50cedd586816 651 else // YCbCr420
dflet 0:50cedd586816 652 {
dflet 0:50cedd586816 653 *pbuf++= 0x03; // number of image components in frame
dflet 0:50cedd586816 654 *pbuf++= 0x00; // component identifier: Y
dflet 0:50cedd586816 655 *pbuf++= 0x22; // horizontal | vertical sampling factor: Y
dflet 0:50cedd586816 656 *pbuf++= 0x00; // quantization table selector: Y
dflet 0:50cedd586816 657 *pbuf++= 0x01; // component identifier: Cb
dflet 0:50cedd586816 658 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cb
dflet 0:50cedd586816 659 *pbuf++= 0x01; // quantization table selector: Cb
dflet 0:50cedd586816 660 *pbuf++= 0x02; // component identifier: Cr
dflet 0:50cedd586816 661 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cr
dflet 0:50cedd586816 662 *pbuf++= 0x01; // quantization table selector: Cr
dflet 0:50cedd586816 663 }
dflet 0:50cedd586816 664
dflet 0:50cedd586816 665 return (length+2);
dflet 0:50cedd586816 666 }
dflet 0:50cedd586816 667
dflet 0:50cedd586816 668
dflet 0:50cedd586816 669 //*****************************************************************************
dflet 0:50cedd586816 670 //
dflet 0:50cedd586816 671 //! ScanHeaderMarker
dflet 0:50cedd586816 672 //!
dflet 0:50cedd586816 673 //! \param1 pointer to output buffer
dflet 0:50cedd586816 674 //! \param2 Format
dflet 0:50cedd586816 675 //!
dflet 0:50cedd586816 676 //! \return Length
dflet 0:50cedd586816 677 //
dflet 0:50cedd586816 678 //*****************************************************************************
dflet 0:50cedd586816 679 static int ScanHeaderMarker(char *pbuf, int format)
dflet 0:50cedd586816 680 {
dflet 0:50cedd586816 681 int length;
dflet 0:50cedd586816 682 if (format == FORMAT_MONOCHROME)
dflet 0:50cedd586816 683 length = 8;
dflet 0:50cedd586816 684 else
dflet 0:50cedd586816 685 length = 12;
dflet 0:50cedd586816 686
dflet 0:50cedd586816 687 *pbuf++= 0xFF; // start of scan
dflet 0:50cedd586816 688 *pbuf++= 0xDA;
dflet 0:50cedd586816 689 *pbuf++= length>>8; // length field
dflet 0:50cedd586816 690 *pbuf++= length&0xFF;
dflet 0:50cedd586816 691 if (format == FORMAT_MONOCHROME)// monochrome
dflet 0:50cedd586816 692 {
dflet 0:50cedd586816 693 *pbuf++= 0x01; // number of image components in scan
dflet 0:50cedd586816 694 *pbuf++= 0x00; // scan component selector: Y
dflet 0:50cedd586816 695 *pbuf++= 0x00; // DC | AC huffman table selector: Y
dflet 0:50cedd586816 696 }
dflet 0:50cedd586816 697 else // YCbCr
dflet 0:50cedd586816 698 {
dflet 0:50cedd586816 699 *pbuf++= 0x03; // number of image components in scan
dflet 0:50cedd586816 700 *pbuf++= 0x00; // scan component selector: Y
dflet 0:50cedd586816 701 *pbuf++= 0x00; // DC | AC huffman table selector: Y
dflet 0:50cedd586816 702 *pbuf++= 0x01; // scan component selector: Cb
dflet 0:50cedd586816 703 *pbuf++= 0x11; // DC | AC huffman table selector: Cb
dflet 0:50cedd586816 704 *pbuf++= 0x02; // scan component selector: Cr
dflet 0:50cedd586816 705 *pbuf++= 0x11; // DC | AC huffman table selector: Cr
dflet 0:50cedd586816 706 }
dflet 0:50cedd586816 707
dflet 0:50cedd586816 708 *pbuf++= 0x00; // Ss: start of predictor selector
dflet 0:50cedd586816 709 *pbuf++= 0x3F; // Se: end of spectral selector
dflet 0:50cedd586816 710 *pbuf++= 0x00; // Ah | Al: successive approximation bit position
dflet 0:50cedd586816 711
dflet 0:50cedd586816 712 return (length+2);
dflet 0:50cedd586816 713 }
dflet 0:50cedd586816 714
dflet 0:50cedd586816 715
dflet 0:50cedd586816 716 //*****************************************************************************
dflet 0:50cedd586816 717 //
dflet 0:50cedd586816 718 //! DefineQuantizationTableMarker
dflet 0:50cedd586816 719 //! Calculate and write the quantisation tables
dflet 0:50cedd586816 720 //! qscale is the customised scaling factor - see MT9D131 developer guide page 78
dflet 0:50cedd586816 721 //!
dflet 0:50cedd586816 722 //! \param1 pointer to the output buffer
dflet 0:50cedd586816 723 //! \param2 Quantization Scale
dflet 0:50cedd586816 724 //! \param3 Format
dflet 0:50cedd586816 725 //!
dflet 0:50cedd586816 726 //! \return Length of the Marker
dflet 0:50cedd586816 727 //
dflet 0:50cedd586816 728 //*****************************************************************************
dflet 0:50cedd586816 729 static int DefineQuantizationTableMarker (unsigned char *pbuf, int qscale, int format)
dflet 0:50cedd586816 730 {
dflet 7:a069c1750fbc 731 // Uart_Write((uint8_t*)"DefineQuantizationTableMarker \n\r");
dflet 0:50cedd586816 732 int i, length, temp;
dflet 0:50cedd586816 733 unsigned char newtbl[64]; // temporary array to store scaled zigzagged quant entries
dflet 0:50cedd586816 734
dflet 0:50cedd586816 735 if (format == FORMAT_MONOCHROME) // monochrome
dflet 0:50cedd586816 736 length = 67;
dflet 0:50cedd586816 737 else
dflet 0:50cedd586816 738 length = 132;
dflet 0:50cedd586816 739
dflet 0:50cedd586816 740 *pbuf++ = 0xFF; // define quantization table marker
dflet 0:50cedd586816 741 *pbuf++ = 0xDB;
dflet 0:50cedd586816 742 *pbuf++ = length>>8; // length field
dflet 0:50cedd586816 743 *pbuf++ = length&0xFF;
dflet 0:50cedd586816 744 *pbuf++ = 0; // quantization table precision | identifier for luminance
dflet 0:50cedd586816 745
dflet 0:50cedd586816 746 // calculate scaled zigzagged luminance quantisation table entries
dflet 0:50cedd586816 747 for (i=0; i<64; i++) {
dflet 0:50cedd586816 748 temp = (JPEG_StdQuantTblY[i] * qscale + 16) / 32;
dflet 0:50cedd586816 749 // limit the values to the valid range
dflet 0:50cedd586816 750 if (temp <= 0)
dflet 0:50cedd586816 751 temp = 1;
dflet 0:50cedd586816 752 if (temp > 255)
dflet 0:50cedd586816 753 temp = 255;
dflet 0:50cedd586816 754 newtbl[zigzag[i]] = (unsigned char) temp;
dflet 0:50cedd586816 755 }
dflet 0:50cedd586816 756
dflet 0:50cedd586816 757 // write the resulting luminance quant table to the output buffer
dflet 0:50cedd586816 758 for (i=0; i<64; i++)
dflet 0:50cedd586816 759 *pbuf++ = newtbl[i];
dflet 0:50cedd586816 760
dflet 0:50cedd586816 761 // if format is monochrome we're finished, otherwise continue on, to do chrominance quant table
dflet 0:50cedd586816 762 if (format == FORMAT_MONOCHROME)
dflet 0:50cedd586816 763 return (length+2);
dflet 0:50cedd586816 764
dflet 0:50cedd586816 765 *pbuf++ = 1; // quantization table precision | identifier for chrominance
dflet 0:50cedd586816 766
dflet 0:50cedd586816 767 // calculate scaled zigzagged chrominance quantisation table entries
dflet 0:50cedd586816 768 for (i=0; i<64; i++) {
dflet 0:50cedd586816 769 temp = (JPEG_StdQuantTblC[i] * qscale + 16) / 32;
dflet 0:50cedd586816 770 // limit the values to the valid range
dflet 0:50cedd586816 771 if (temp <= 0)
dflet 0:50cedd586816 772 temp = 1;
dflet 0:50cedd586816 773 if (temp > 255)
dflet 0:50cedd586816 774 temp = 255;
dflet 0:50cedd586816 775 newtbl[zigzag[i]] = (unsigned char) temp;
dflet 0:50cedd586816 776 }
dflet 0:50cedd586816 777
dflet 0:50cedd586816 778 // write the resulting chrominance quant table to the output buffer
dflet 0:50cedd586816 779 for (i=0; i<64; i++)
dflet 0:50cedd586816 780 *pbuf++ = newtbl[i];
dflet 0:50cedd586816 781
dflet 0:50cedd586816 782 return (length+2);
dflet 0:50cedd586816 783 }
dflet 0:50cedd586816 784
dflet 0:50cedd586816 785
dflet 0:50cedd586816 786 //*****************************************************************************
dflet 0:50cedd586816 787 //
dflet 0:50cedd586816 788 //! DefineHuffmanTableMarkerDC
dflet 0:50cedd586816 789 //!
dflet 0:50cedd586816 790 //! \param1 pointer to Marker buffer
dflet 0:50cedd586816 791 //! \param2 Huffman table
dflet 0:50cedd586816 792 //! \param3 Class Identifier
dflet 0:50cedd586816 793 //!
dflet 0:50cedd586816 794 //! \return Length of the marker
dflet 0:50cedd586816 795 //
dflet 0:50cedd586816 796 //*****************************************************************************
dflet 0:50cedd586816 797 static int DefineHuffmanTableMarkerDC(char *pbuf, unsigned int *htable, int class_id)
dflet 0:50cedd586816 798 {
dflet 7:a069c1750fbc 799 // Uart_Write((uint8_t*)"DefineHuffmanTableMarkerDC \n\r");
dflet 0:50cedd586816 800 int i, l, count;
dflet 0:50cedd586816 801 int length;
dflet 0:50cedd586816 802 char *plength;
dflet 0:50cedd586816 803
dflet 0:50cedd586816 804 *pbuf++= 0xFF; // define huffman table marker
dflet 0:50cedd586816 805 *pbuf++= 0xC4;
dflet 0:50cedd586816 806 plength = pbuf; // place holder for length field
dflet 0:50cedd586816 807 *pbuf++;
dflet 0:50cedd586816 808 *pbuf++;
dflet 0:50cedd586816 809 *pbuf++= class_id; // huffman table class | identifier
dflet 0:50cedd586816 810
dflet 0:50cedd586816 811 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 812 {
dflet 0:50cedd586816 813 count = 0;
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 count++;
dflet 0:50cedd586816 818 }
dflet 0:50cedd586816 819 *pbuf++= count; // number of huffman codes of length l+1
dflet 0:50cedd586816 820 }
dflet 0:50cedd586816 821
dflet 0:50cedd586816 822 length = 19;
dflet 0:50cedd586816 823 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 824 {
dflet 0:50cedd586816 825 for (i = 0; i < 12; i++)
dflet 0:50cedd586816 826 {
dflet 0:50cedd586816 827 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 828 {
dflet 0:50cedd586816 829 *pbuf++= i; // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 830 length++;
dflet 0:50cedd586816 831 }
dflet 0:50cedd586816 832 }
dflet 0:50cedd586816 833 }
dflet 0:50cedd586816 834
dflet 0:50cedd586816 835 *plength++= length>>8; // length field
dflet 0:50cedd586816 836 *plength = length&0xFF;
dflet 0:50cedd586816 837
dflet 0:50cedd586816 838 return (length + 2);
dflet 0:50cedd586816 839 }
dflet 0:50cedd586816 840
dflet 0:50cedd586816 841
dflet 0:50cedd586816 842 //*****************************************************************************
dflet 0:50cedd586816 843 //
dflet 0:50cedd586816 844 //! DefineHuffmanTableMarkerAC
dflet 0:50cedd586816 845 //! 1. Establishes connection w/ AP//
dflet 0:50cedd586816 846 //! 2. Initializes the camera sub-components//! GPIO Enable & Configuration
dflet 0:50cedd586816 847 //! 3. Listens and processes the image capture requests from user-applications
dflet 0:50cedd586816 848 //!
dflet 0:50cedd586816 849 //! \param1 pointer to Marker buffer
dflet 0:50cedd586816 850 //! \param2 Huffman table
dflet 0:50cedd586816 851 //! \param3 Class Identifier
dflet 0:50cedd586816 852 //!
dflet 0:50cedd586816 853 //! \return Length of the Marker
dflet 0:50cedd586816 854 //!
dflet 0:50cedd586816 855 //
dflet 0:50cedd586816 856 //*****************************************************************************
dflet 0:50cedd586816 857 static int DefineHuffmanTableMarkerAC(char *pbuf, unsigned int *htable, int class_id)
dflet 0:50cedd586816 858 {
dflet 7:a069c1750fbc 859 // Uart_Write((uint8_t*)"DefineHuffmanTableMarkerAC \n\r");
dflet 0:50cedd586816 860 int i, l, a, b, count;
dflet 0:50cedd586816 861 char *plength;
dflet 0:50cedd586816 862 int length;
dflet 0:50cedd586816 863
dflet 0:50cedd586816 864 *pbuf++= 0xFF; // define huffman table marker
dflet 0:50cedd586816 865 *pbuf++= 0xC4;
dflet 0:50cedd586816 866 plength = pbuf; // place holder for length field
dflet 0:50cedd586816 867 *pbuf++;
dflet 0:50cedd586816 868 *pbuf++;
dflet 0:50cedd586816 869 *pbuf++= class_id; // huffman table class | identifier
dflet 0:50cedd586816 870
dflet 0:50cedd586816 871 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 872 {
dflet 0:50cedd586816 873 count = 0;
dflet 0:50cedd586816 874 for (i = 0; i < 162; i++)
dflet 0:50cedd586816 875 {
dflet 0:50cedd586816 876 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 877 count++;
dflet 0:50cedd586816 878 }
dflet 0:50cedd586816 879
dflet 0:50cedd586816 880 *pbuf++= count; // number of huffman codes of length l+1
dflet 0:50cedd586816 881 }
dflet 0:50cedd586816 882
dflet 0:50cedd586816 883 length = 19;
dflet 0:50cedd586816 884 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 885 {
dflet 0:50cedd586816 886 // check EOB: 0|0
dflet 0:50cedd586816 887 if ((htable[160] >> 8) == l)
dflet 0:50cedd586816 888 {
dflet 0:50cedd586816 889 *pbuf++= 0; // 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 // check HUFFVAL: 0|1 to E|A
dflet 0:50cedd586816 894 for (i = 0; i < 150; i++)
dflet 0:50cedd586816 895 {
dflet 0:50cedd586816 896 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 897 {
dflet 0:50cedd586816 898 a = i/10;
dflet 0:50cedd586816 899 b = i%10;
dflet 0:50cedd586816 900 *pbuf++= (a<<4)|(b+1); // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 901 length++;
dflet 0:50cedd586816 902 }
dflet 0:50cedd586816 903 }
dflet 0:50cedd586816 904
dflet 0:50cedd586816 905 // check ZRL: F|0
dflet 0:50cedd586816 906 if ((htable[161] >> 8) == l)
dflet 0:50cedd586816 907 {
dflet 0:50cedd586816 908 *pbuf++= 0xF0; // 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 // check HUFFVAL: F|1 to F|A
dflet 0:50cedd586816 913 for (i = 150; i < 160; i++)
dflet 0:50cedd586816 914 {
dflet 0:50cedd586816 915 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 916 {
dflet 0:50cedd586816 917 a = i/10;
dflet 0:50cedd586816 918 b = i%10;
dflet 0:50cedd586816 919 *pbuf++= (a<<4)|(b+1); // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 920 length++;
dflet 0:50cedd586816 921 }
dflet 0:50cedd586816 922 }
dflet 0:50cedd586816 923 }
dflet 0:50cedd586816 924
dflet 0:50cedd586816 925 *plength++= length>>8; // length field
dflet 0:50cedd586816 926 *plength = length&0xFF;
dflet 0:50cedd586816 927 return (length + 2);
dflet 0:50cedd586816 928 }
dflet 0:50cedd586816 929
dflet 0:50cedd586816 930
dflet 0:50cedd586816 931 //*****************************************************************************
dflet 0:50cedd586816 932 //
dflet 0:50cedd586816 933 //! DefineRestartIntervalMarker
dflet 0:50cedd586816 934 //!
dflet 0:50cedd586816 935 //! \param1 pointer to Marker buffer
dflet 0:50cedd586816 936 //! \param2 return interval
dflet 0:50cedd586816 937 //!
dflet 0:50cedd586816 938 //! \return Length
dflet 0:50cedd586816 939 //
dflet 0:50cedd586816 940 //*****************************************************************************
dflet 0:50cedd586816 941 static int DefineRestartIntervalMarker(char *pbuf, int ri)
dflet 0:50cedd586816 942 {
dflet 7:a069c1750fbc 943 // Uart_Write((uint8_t*)"DefineRestartIntervalMarker \n\r");
dflet 0:50cedd586816 944 *pbuf++= 0xFF; // define restart interval marker
dflet 0:50cedd586816 945 *pbuf++= 0xDD;
dflet 0:50cedd586816 946 *pbuf++= 0x00; // length
dflet 0:50cedd586816 947 *pbuf++= 0x04;
dflet 0:50cedd586816 948 *pbuf++= ri >> 8; // restart interval
dflet 0:50cedd586816 949 *pbuf++= ri & 0xFF;
dflet 0:50cedd586816 950 return 6;
dflet 0:50cedd586816 951 }
dflet 0:50cedd586816 952 //*****************************************************************************
dflet 0:50cedd586816 953 //
dflet 0:50cedd586816 954 //! CreateJpegHeader
dflet 0:50cedd586816 955 //! Create JPEG Header in JFIF format
dflet 0:50cedd586816 956 //!
dflet 0:50cedd586816 957 //! \param1 header - pointer to JPEG header buffer
dflet 0:50cedd586816 958 //! \param2 width - image width
dflet 0:50cedd586816 959 //! \param3 height - image height
dflet 0:50cedd586816 960 //! \param4 format - color format (0 = YCbCr422, 1 = YCbCr420, 2 = monochrome)
dflet 0:50cedd586816 961 //! \param5 restart_int - restart marker interval
dflet 0:50cedd586816 962 //! \param6 qscale - quantization table scaling factor
dflet 0:50cedd586816 963 //!
dflet 0:50cedd586816 964 //! \return length of JPEG header (bytes)
dflet 0:50cedd586816 965 //
dflet 0:50cedd586816 966 //*****************************************************************************
dflet 0:50cedd586816 967
dflet 0:50cedd586816 968 static int CreateJpegHeader(char *header, int width, int height,
dflet 0:50cedd586816 969 int format, int restart_int, int qscale)
dflet 0:50cedd586816 970 {
dflet 7:a069c1750fbc 971 // Uart_Write((uint8_t*)"CreateJpegHeader \n\r");
dflet 0:50cedd586816 972 char *pbuf = header;
dflet 0:50cedd586816 973 int length;
dflet 0:50cedd586816 974
dflet 0:50cedd586816 975 // SOI
dflet 0:50cedd586816 976 *pbuf++= 0xFF;
dflet 0:50cedd586816 977 *pbuf++= 0xD8;
dflet 0:50cedd586816 978 length = 2;
dflet 0:50cedd586816 979
dflet 0:50cedd586816 980 // JFIF APP0
dflet 0:50cedd586816 981 length += JfifApp0Marker(pbuf);
dflet 0:50cedd586816 982
dflet 0:50cedd586816 983 // Quantization Tables
dflet 0:50cedd586816 984 pbuf = header + length;
dflet 0:50cedd586816 985 length += DefineQuantizationTableMarker((unsigned char *)pbuf, qscale, format);
dflet 0:50cedd586816 986
dflet 0:50cedd586816 987 // Frame Header
dflet 0:50cedd586816 988 pbuf = header + length;
dflet 0:50cedd586816 989 length += FrameHeaderMarker(pbuf, width, height, format);
dflet 0:50cedd586816 990
dflet 0:50cedd586816 991 // Huffman Table DC 0 for Luma
dflet 0:50cedd586816 992 pbuf = header + length;
dflet 0:50cedd586816 993 length += DefineHuffmanTableMarkerDC(pbuf, &JPEG_StdHuffmanTbl[352], 0x00);
dflet 0:50cedd586816 994
dflet 0:50cedd586816 995 // Huffman Table AC 0 for Luma
dflet 0:50cedd586816 996 pbuf = header + length;
dflet 0:50cedd586816 997 length += DefineHuffmanTableMarkerAC(pbuf, &JPEG_StdHuffmanTbl[0], 0x10);
dflet 0:50cedd586816 998
dflet 0:50cedd586816 999 if (format != FORMAT_MONOCHROME)// YCbCr
dflet 0:50cedd586816 1000 {
dflet 0:50cedd586816 1001 // Huffman Table DC 1 for Chroma
dflet 0:50cedd586816 1002 pbuf = header + length;
dflet 0:50cedd586816 1003 length += DefineHuffmanTableMarkerDC(pbuf, &JPEG_StdHuffmanTbl[368], 0x01);
dflet 0:50cedd586816 1004
dflet 0:50cedd586816 1005 // Huffman Table AC 1 for Chroma
dflet 0:50cedd586816 1006 pbuf = header + length;
dflet 0:50cedd586816 1007 length += DefineHuffmanTableMarkerAC(pbuf, &JPEG_StdHuffmanTbl[176], 0x11);
dflet 0:50cedd586816 1008 }
dflet 0:50cedd586816 1009
dflet 0:50cedd586816 1010 // Restart Interval
dflet 0:50cedd586816 1011 if (restart_int > 0)
dflet 0:50cedd586816 1012 {
dflet 0:50cedd586816 1013 pbuf = header + length;
dflet 0:50cedd586816 1014 length += DefineRestartIntervalMarker(pbuf, restart_int);
dflet 0:50cedd586816 1015 }
dflet 0:50cedd586816 1016
dflet 0:50cedd586816 1017 // Scan Header
dflet 0:50cedd586816 1018 pbuf = header + length;
dflet 0:50cedd586816 1019 length += ScanHeaderMarker(pbuf, format);
dflet 0:50cedd586816 1020
dflet 0:50cedd586816 1021 return length;
dflet 0:50cedd586816 1022 }
dflet 6:37fb696395d7 1023 #endif// jpeg defined
dflet 0:50cedd586816 1024
dflet 0:50cedd586816 1025
dflet 0:50cedd586816 1026
dflet 0:50cedd586816 1027 //*****************************************************************************
dflet 0:50cedd586816 1028 //
dflet 0:50cedd586816 1029 // Close the Doxygen group.
dflet 0:50cedd586816 1030 //! @}
dflet 0:50cedd586816 1031 //
dflet 0:50cedd586816 1032 //*****************************************************************************
dflet 0:50cedd586816 1033