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@4:c27adffcfec2, 2015-06-30 (annotated)

Committer:
dflet
Date:
Tue Jun 30 22:51:05 2015 +0000
Revision:
4:c27adffcfec2
Parent:
3:7643714ec664
Child:
5:75fcfdb7cae7
WIP commit 5

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 4:c27adffcfec2 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 4:c27adffcfec2 52 //#include "stm32f4xx_hal_dma.h"
dflet 4:c27adffcfec2 53 //#include "stm32f4xx_hal_dcmi.h"
dflet 4:c27adffcfec2 54
dflet 0:50cedd586816 55 #include "camera_app.h"
dflet 0:50cedd586816 56 #include "mt9d111.h"
dflet 0:50cedd586816 57 #include "i2cconfig.h"
dflet 4:c27adffcfec2 58
dflet 0:50cedd586816 59 #include "cli_uart.h"
dflet 3:7643714ec664 60 #include "Led_config.h"
dflet 0:50cedd586816 61
dflet 0:50cedd586816 62 using namespace mbed_cc3100;
dflet 0:50cedd586816 63
dflet 0:50cedd586816 64 #define ENABLE_JPEG
dflet 0:50cedd586816 65
dflet 0:50cedd586816 66 //*****************************************************************************
dflet 0:50cedd586816 67 // Macros
dflet 0:50cedd586816 68 //*****************************************************************************
dflet 0:50cedd586816 69 #define USER_FILE_NAME "www/images/cc3200_camera_capture.jpg"
dflet 0:50cedd586816 70 #define TOTAL_DMA_ELEMENTS 64
dflet 0:50cedd586816 71 #define AP_SSID_LEN_MAX (33)
dflet 0:50cedd586816 72 #define ROLE_INVALID (-5)
dflet 0:50cedd586816 73 //*****************************************************************************
dflet 0:50cedd586816 74 // GLOBAL VARIABLES
dflet 0:50cedd586816 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 0:50cedd586816 94 #endif
dflet 0:50cedd586816 95
dflet 0:50cedd586816 96 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 97 unsigned int g_header_length;
dflet 0:50cedd586816 98 #endif
dflet 0:50cedd586816 99
dflet 0:50cedd586816 100 struct ImageBuffer
dflet 0:50cedd586816 101 {
dflet 0:50cedd586816 102 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 103 char g_header[SMTP_BUF_LEN] /*= {'\0'}*/;
dflet 0:50cedd586816 104 #endif
dflet 4:c27adffcfec2 105 unsigned int g_image_buffer[NUM_OF_4B_CHUNKS];//12800
dflet 0:50cedd586816 106 };
dflet 0:50cedd586816 107
dflet 0:50cedd586816 108 ImageBuffer g_image;
dflet 0:50cedd586816 109
dflet 0:50cedd586816 110 typedef enum pictureRequest{
dflet 0:50cedd586816 111 NO_PICTURE = 0x00,
dflet 0:50cedd586816 112 SINGLE_HIGH_RESOLUTION = 0x01,
dflet 0:50cedd586816 113 STREAM_LOW_RESOLUTION = 0x02
dflet 0:50cedd586816 114
dflet 0:50cedd586816 115 }e_pictureRequest;
dflet 0:50cedd586816 116
dflet 0:50cedd586816 117 typedef enum pictureFormat{
dflet 0:50cedd586816 118 RAW_10BIT = 0,
dflet 0:50cedd586816 119 ITU_R_BT601,
dflet 0:50cedd586816 120 YCbCr_4_2_2,
dflet 0:50cedd586816 121 YCbCr_4_2_0,
dflet 0:50cedd586816 122 RGB_565,
dflet 0:50cedd586816 123 RGB_555,
dflet 0:50cedd586816 124 RGB_444
dflet 0:50cedd586816 125
dflet 0:50cedd586816 126 }e_pictureFormat;
dflet 0:50cedd586816 127
dflet 0:50cedd586816 128 typedef enum pictureResolution{
dflet 0:50cedd586816 129 QVGA = 0,
dflet 0:50cedd586816 130 VGA,
dflet 0:50cedd586816 131 SVGA,
dflet 0:50cedd586816 132 XGA,
dflet 0:50cedd586816 133 uXGA
dflet 0:50cedd586816 134
dflet 0:50cedd586816 135 }e_pictureResolution;
dflet 0:50cedd586816 136
dflet 0:50cedd586816 137
dflet 0:50cedd586816 138 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 139 #define FORMAT_YCBCR422 0
dflet 0:50cedd586816 140 #define FORMAT_YCBCR420 1
dflet 0:50cedd586816 141 #define FORMAT_MONOCHROME 2
dflet 0:50cedd586816 142
dflet 0:50cedd586816 143 unsigned char JPEG_StdQuantTblY[64] =
dflet 0:50cedd586816 144 {
dflet 0:50cedd586816 145 16, 11, 10, 16, 24, 40, 51, 61,
dflet 0:50cedd586816 146 12, 12, 14, 19, 26, 58, 60, 55,
dflet 0:50cedd586816 147 14, 13, 16, 24, 40, 57, 69, 56,
dflet 0:50cedd586816 148 14, 17, 22, 29, 51, 87, 80, 62,
dflet 0:50cedd586816 149 18, 22, 37, 56, 68, 109, 103, 77,
dflet 0:50cedd586816 150 24, 35, 55, 64, 81, 104, 113, 92,
dflet 0:50cedd586816 151 49, 64, 78, 87, 103, 121, 120, 101,
dflet 0:50cedd586816 152 72, 92, 95, 98, 112, 100, 103, 99
dflet 0:50cedd586816 153 };
dflet 0:50cedd586816 154
dflet 0:50cedd586816 155 unsigned char JPEG_StdQuantTblC[64] =
dflet 0:50cedd586816 156 {
dflet 0:50cedd586816 157 17, 18, 24, 47, 99, 99, 99, 99,
dflet 0:50cedd586816 158 18, 21, 26, 66, 99, 99, 99, 99,
dflet 0:50cedd586816 159 24, 26, 56, 99, 99, 99, 99, 99,
dflet 0:50cedd586816 160 47, 66, 99, 99, 99, 99, 99, 99,
dflet 0:50cedd586816 161 99, 99, 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 };
dflet 0:50cedd586816 166 //
dflet 0:50cedd586816 167 // This table is used for regular-position to zigzagged-position lookup
dflet 0:50cedd586816 168 // This is Figure A.6 from the ISO/IEC 10918-1 1993 specification
dflet 0:50cedd586816 169 //
dflet 0:50cedd586816 170 static unsigned char zigzag[64] =
dflet 0:50cedd586816 171 {
dflet 0:50cedd586816 172 0, 1, 5, 6,14,15,27,28,
dflet 0:50cedd586816 173 2, 4, 7,13,16,26,29,42,
dflet 0:50cedd586816 174 3, 8,12,17,25,30,41,43,
dflet 0:50cedd586816 175 9,11,18,24,31,40,44,53,
dflet 0:50cedd586816 176 10,19,23,32,39,45,52,54,
dflet 0:50cedd586816 177 20,22,33,38,46,51,55,60,
dflet 0:50cedd586816 178 21,34,37,47,50,56,59,61,
dflet 0:50cedd586816 179 35,36,48,49,57,58,62,63
dflet 0:50cedd586816 180 };
dflet 0:50cedd586816 181
dflet 0:50cedd586816 182 unsigned int JPEG_StdHuffmanTbl[384] =
dflet 0:50cedd586816 183 {
dflet 0:50cedd586816 184 0x100, 0x101, 0x204, 0x30b, 0x41a, 0x678, 0x7f8, 0x9f6,
dflet 0:50cedd586816 185 0xf82, 0xf83, 0x30c, 0x41b, 0x679, 0x8f6, 0xaf6, 0xf84,
dflet 0:50cedd586816 186 0xf85, 0xf86, 0xf87, 0xf88, 0x41c, 0x7f9, 0x9f7, 0xbf4,
dflet 0:50cedd586816 187 0xf89, 0xf8a, 0xf8b, 0xf8c, 0xf8d, 0xf8e, 0x53a, 0x8f7,
dflet 0:50cedd586816 188 0xbf5, 0xf8f, 0xf90, 0xf91, 0xf92, 0xf93, 0xf94, 0xf95,
dflet 0:50cedd586816 189 0x53b, 0x9f8, 0xf96, 0xf97, 0xf98, 0xf99, 0xf9a, 0xf9b,
dflet 0:50cedd586816 190 0xf9c, 0xf9d, 0x67a, 0xaf7, 0xf9e, 0xf9f, 0xfa0, 0xfa1,
dflet 0:50cedd586816 191 0xfa2, 0xfa3, 0xfa4, 0xfa5, 0x67b, 0xbf6, 0xfa6, 0xfa7,
dflet 0:50cedd586816 192 0xfa8, 0xfa9, 0xfaa, 0xfab, 0xfac, 0xfad, 0x7fa, 0xbf7,
dflet 0:50cedd586816 193 0xfae, 0xfaf, 0xfb0, 0xfb1, 0xfb2, 0xfb3, 0xfb4, 0xfb5,
dflet 0:50cedd586816 194 0x8f8, 0xec0, 0xfb6, 0xfb7, 0xfb8, 0xfb9, 0xfba, 0xfbb,
dflet 0:50cedd586816 195 0xfbc, 0xfbd, 0x8f9, 0xfbe, 0xfbf, 0xfc0, 0xfc1, 0xfc2,
dflet 0:50cedd586816 196 0xfc3, 0xfc4, 0xfc5, 0xfc6, 0x8fa, 0xfc7, 0xfc8, 0xfc9,
dflet 0:50cedd586816 197 0xfca, 0xfcb, 0xfcc, 0xfcd, 0xfce, 0xfcf, 0x9f9, 0xfd0,
dflet 0:50cedd586816 198 0xfd1, 0xfd2, 0xfd3, 0xfd4, 0xfd5, 0xfd6, 0xfd7, 0xfd8,
dflet 0:50cedd586816 199 0x9fa, 0xfd9, 0xfda, 0xfdb, 0xfdc, 0xfdd, 0xfde, 0xfdf,
dflet 0:50cedd586816 200 0xfe0, 0xfe1, 0xaf8, 0xfe2, 0xfe3, 0xfe4, 0xfe5, 0xfe6,
dflet 0:50cedd586816 201 0xfe7, 0xfe8, 0xfe9, 0xfea, 0xfeb, 0xfec, 0xfed, 0xfee,
dflet 0:50cedd586816 202 0xfef, 0xff0, 0xff1, 0xff2, 0xff3, 0xff4, 0xff5, 0xff6,
dflet 0:50cedd586816 203 0xff7, 0xff8, 0xff9, 0xffa, 0xffb, 0xffc, 0xffd, 0xffe,
dflet 0:50cedd586816 204 0x30a, 0xaf9, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
dflet 0:50cedd586816 205 0xfd0, 0xfd1, 0xfd2, 0xfd3, 0xfd4, 0xfd5, 0xfd6, 0xfd7,
dflet 0:50cedd586816 206 0x101, 0x204, 0x30a, 0x418, 0x419, 0x538, 0x678, 0x8f4,
dflet 0:50cedd586816 207 0x9f6, 0xbf4, 0x30b, 0x539, 0x7f6, 0x8f5, 0xaf6, 0xbf5,
dflet 0:50cedd586816 208 0xf88, 0xf89, 0xf8a, 0xf8b, 0x41a, 0x7f7, 0x9f7, 0xbf6,
dflet 0:50cedd586816 209 0xec2, 0xf8c, 0xf8d, 0xf8e, 0xf8f, 0xf90, 0x41b, 0x7f8,
dflet 0:50cedd586816 210 0x9f8, 0xbf7, 0xf91, 0xf92, 0xf93, 0xf94, 0xf95, 0xf96,
dflet 0:50cedd586816 211 0x53a, 0x8f6, 0xf97, 0xf98, 0xf99, 0xf9a, 0xf9b, 0xf9c,
dflet 0:50cedd586816 212 0xf9d, 0xf9e, 0x53b, 0x9f9, 0xf9f, 0xfa0, 0xfa1, 0xfa2,
dflet 0:50cedd586816 213 0xfa3, 0xfa4, 0xfa5, 0xfa6, 0x679, 0xaf7, 0xfa7, 0xfa8,
dflet 0:50cedd586816 214 0xfa9, 0xfaa, 0xfab, 0xfac, 0xfad, 0xfae, 0x67a, 0xaf8,
dflet 0:50cedd586816 215 0xfaf, 0xfb0, 0xfb1, 0xfb2, 0xfb3, 0xfb4, 0xfb5, 0xfb6,
dflet 0:50cedd586816 216 0x7f9, 0xfb7, 0xfb8, 0xfb9, 0xfba, 0xfbb, 0xfbc, 0xfbd,
dflet 0:50cedd586816 217 0xfbe, 0xfbf, 0x8f7, 0xfc0, 0xfc1, 0xfc2, 0xfc3, 0xfc4,
dflet 0:50cedd586816 218 0xfc5, 0xfc6, 0xfc7, 0xfc8, 0x8f8, 0xfc9, 0xfca, 0xfcb,
dflet 0:50cedd586816 219 0xfcc, 0xfcd, 0xfce, 0xfcf, 0xfd0, 0xfd1, 0x8f9, 0xfd2,
dflet 0:50cedd586816 220 0xfd3, 0xfd4, 0xfd5, 0xfd6, 0xfd7, 0xfd8, 0xfd9, 0xfda,
dflet 0:50cedd586816 221 0x8fa, 0xfdb, 0xfdc, 0xfdd, 0xfde, 0xfdf, 0xfe0, 0xfe1,
dflet 0:50cedd586816 222 0xfe2, 0xfe3, 0xaf9, 0xfe4, 0xfe5, 0xfe6, 0xfe7, 0xfe8,
dflet 0:50cedd586816 223 0xfe9, 0xfea, 0xfeb, 0xfec, 0xde0, 0xfed, 0xfee, 0xfef,
dflet 0:50cedd586816 224 0xff0, 0xff1, 0xff2, 0xff3, 0xff4, 0xff5, 0xec3, 0xff6,
dflet 0:50cedd586816 225 0xff7, 0xff8, 0xff9, 0xffa, 0xffb, 0xffc, 0xffd, 0xffe,
dflet 0:50cedd586816 226 0x100, 0x9fa, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
dflet 0:50cedd586816 227 0xfd0, 0xfd1, 0xfd2, 0xfd3, 0xfd4, 0xfd5, 0xfd6, 0xfd7,
dflet 0:50cedd586816 228 0x100, 0x202, 0x203, 0x204, 0x205, 0x206, 0x30e, 0x41e,
dflet 0:50cedd586816 229 0x53e, 0x67e, 0x7fe, 0x8fe, 0xfff, 0xfff, 0xfff, 0xfff,
dflet 0:50cedd586816 230 0x100, 0x101, 0x102, 0x206, 0x30e, 0x41e, 0x53e, 0x67e,
dflet 0:50cedd586816 231 0x7fe, 0x8fe, 0x9fe, 0xafe, 0xfff, 0xfff, 0xfff, 0xfff
dflet 0:50cedd586816 232 };
dflet 0:50cedd586816 233 #endif
dflet 0:50cedd586816 234 /****************************************************************************/
dflet 0:50cedd586816 235 /* LOCAL FUNCTION PROTOTYPES */
dflet 0:50cedd586816 236 /****************************************************************************/
dflet 0:50cedd586816 237 static void CamControllerInit();
dflet 0:50cedd586816 238 static void CameraIntHandler();
dflet 0:50cedd586816 239 static unsigned short CaptureImage(char **WriteBuffer);
dflet 0:50cedd586816 240 static void DMAConfig();
dflet 0:50cedd586816 241
dflet 0:50cedd586816 242 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 243 static int CreateJpegHeader(char *header, int width, int height,
dflet 0:50cedd586816 244 int format, int restart_int, int qscale);
dflet 0:50cedd586816 245 static int DefineRestartIntervalMarker(char *pbuf, int ri);
dflet 0:50cedd586816 246 static int DefineHuffmanTableMarkerAC(char *pbuf, unsigned int *htable, int class_id);
dflet 0:50cedd586816 247 static int DefineHuffmanTableMarkerDC(char *pbuf, unsigned int *htable, int class_id);
dflet 0:50cedd586816 248 static int DefineQuantizationTableMarker (unsigned char *pbuf, int qscale, int format);
dflet 0:50cedd586816 249 static int ScanHeaderMarker(char *pbuf, int format);
dflet 0:50cedd586816 250 static int FrameHeaderMarker(char *pbuf, int width, int height, int format);
dflet 0:50cedd586816 251 static int JfifApp0Marker(char *pbuf);
dflet 0:50cedd586816 252 #endif
dflet 0:50cedd586816 253
dflet 0:50cedd586816 254 //*****************************************************************************
dflet 0:50cedd586816 255 //
dflet 0:50cedd586816 256 //! Start Camera
dflet 0:50cedd586816 257 //! 1. Establishes connection w/ AP//
dflet 0:50cedd586816 258 //! 2. Initializes the camera sub-components//! GPIO Enable & Configuration
dflet 0:50cedd586816 259 //! 3. Listens and processes the image capture requests from user-applications
dflet 0:50cedd586816 260 //!
dflet 0:50cedd586816 261 //! \param[out] WriteBuffer - Pointer to the Frame Buffer
dflet 0:50cedd586816 262 //! \return None
dflet 0:50cedd586816 263 //
dflet 0:50cedd586816 264 //*****************************************************************************
dflet 0:50cedd586816 265
dflet 0:50cedd586816 266 unsigned short StartCamera(char **WriteBuffer)
dflet 0:50cedd586816 267 {
dflet 0:50cedd586816 268 Uart_Write((uint8_t*)"StartCamera \n\r");
dflet 0:50cedd586816 269 unsigned short Writelength;
dflet 0:50cedd586816 270 //
dflet 0:50cedd586816 271 // Waits in the below loop till Capture button is pressed
dflet 0:50cedd586816 272 //
dflet 0:50cedd586816 273 Writelength = CaptureImage(WriteBuffer);
dflet 0:50cedd586816 274
dflet 0:50cedd586816 275 return(Writelength);
dflet 0:50cedd586816 276
dflet 0:50cedd586816 277 }
dflet 0:50cedd586816 278 //*****************************************************************************
dflet 0:50cedd586816 279 //
dflet 0:50cedd586816 280 //! InitCameraComponents
dflet 0:50cedd586816 281 //! PinMux, Camera Initialization and Configuration
dflet 0:50cedd586816 282 //!
dflet 0:50cedd586816 283 //! \param[in] width - X-Axis
dflet 0:50cedd586816 284 //! \param[in] width - Y-Axis
dflet 0:50cedd586816 285 //! \return None
dflet 0:50cedd586816 286 //
dflet 0:50cedd586816 287 //*****************************************************************************
dflet 0:50cedd586816 288
dflet 0:50cedd586816 289 void InitCameraComponents(int width, int height)
dflet 0:50cedd586816 290 {
dflet 0:50cedd586816 291 Uart_Write((uint8_t*)"InitCameraComponents \n\r");
dflet 0:50cedd586816 292 //
dflet 0:50cedd586816 293 // Initialize I2C Interface
dflet 0:50cedd586816 294 //
dflet 0:50cedd586816 295 I2CInit();
dflet 0:50cedd586816 296 //
dflet 0:50cedd586816 297 // Initialize camera controller
dflet 0:50cedd586816 298 //
dflet 0:50cedd586816 299 CamControllerInit();
dflet 0:50cedd586816 300 //
dflet 0:50cedd586816 301 // Initialize camera sensor
dflet 0:50cedd586816 302 //
dflet 0:50cedd586816 303 CameraSensorInit();
dflet 0:50cedd586816 304
dflet 0:50cedd586816 305 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 306 //
dflet 0:50cedd586816 307 // Configure Sensor in Capture Mode
dflet 0:50cedd586816 308 //
dflet 0:50cedd586816 309 PIXELS_IN_X_AXIS = width;
dflet 0:50cedd586816 310 PIXELS_IN_Y_AXIS = height;
dflet 0:50cedd586816 311 FRAME_SIZE_IN_BYTES = PIXELS_IN_X_AXIS * PIXELS_IN_Y_AXIS * BYTES_PER_PIXEL;
dflet 0:50cedd586816 312
dflet 0:50cedd586816 313 StartSensorInJpegMode(width, height);
dflet 0:50cedd586816 314
dflet 0:50cedd586816 315 #endif
dflet 0:50cedd586816 316 }
dflet 0:50cedd586816 317
dflet 0:50cedd586816 318 //*****************************************************************************
dflet 0:50cedd586816 319 //
dflet 0:50cedd586816 320 //! Set resolution of camera
dflet 0:50cedd586816 321 //!
dflet 0:50cedd586816 322 //! \param[in] width - X Axis
dflet 0:50cedd586816 323 //! \param[in] height - Y Axis
dflet 0:50cedd586816 324 //! \return 0 on success else -ve
dflet 0:50cedd586816 325 //
dflet 0:50cedd586816 326 //*****************************************************************************
dflet 0:50cedd586816 327
dflet 0:50cedd586816 328 int SetCameraResolution(int width, int height)
dflet 0:50cedd586816 329 {
dflet 0:50cedd586816 330 Uart_Write((uint8_t*)"SetCameraResolution \n\r");
dflet 0:50cedd586816 331 int lRetVal = 0;
dflet 0:50cedd586816 332
dflet 0:50cedd586816 333 PIXELS_IN_X_AXIS = width;
dflet 0:50cedd586816 334 PIXELS_IN_Y_AXIS = height;
dflet 0:50cedd586816 335 FRAME_SIZE_IN_BYTES = PIXELS_IN_X_AXIS * PIXELS_IN_Y_AXIS * BYTES_PER_PIXEL;
dflet 0:50cedd586816 336 lRetVal = CameraSensorResolution(width, height);
dflet 0:50cedd586816 337 return lRetVal;
dflet 0:50cedd586816 338 }
dflet 0:50cedd586816 339
dflet 0:50cedd586816 340 //*****************************************************************************
dflet 0:50cedd586816 341 //
dflet 0:50cedd586816 342 //! CaptureImage
dflet 0:50cedd586816 343 //! Configures DMA and starts the Capture. Post Capture writes to SFLASH
dflet 0:50cedd586816 344 //!
dflet 0:50cedd586816 345 //! \param None
dflet 0:50cedd586816 346 //! \return None
dflet 0:50cedd586816 347 //!
dflet 0:50cedd586816 348 //
dflet 0:50cedd586816 349 //*****************************************************************************
dflet 0:50cedd586816 350
dflet 0:50cedd586816 351 static unsigned short CaptureImage(char** WriteBuffer)
dflet 0:50cedd586816 352 {
dflet 0:50cedd586816 353 Uart_Write((uint8_t*)"CaptureImage \n\r");
dflet 1:1a80c1529aa3 354 DCMI_HandleTypeDef hdcmi;
dflet 1:1a80c1529aa3 355 DMA_HandleTypeDef hdma_dcmi;
dflet 2:b92db44a29b4 356 memset(g_image.g_image_buffer,0xF80F,sizeof(g_image.g_image_buffer));
dflet 2:b92db44a29b4 357 p_buffer = &(g_image.g_image_buffer[0]);
dflet 0:50cedd586816 358
dflet 0:50cedd586816 359 DMAConfig();
dflet 0:50cedd586816 360
dflet 0:50cedd586816 361 //
dflet 0:50cedd586816 362 // Perform Image Capture
dflet 0:50cedd586816 363 //
dflet 2:b92db44a29b4 364 Uart_Write((uint8_t*)"CaptureImage Start\n\r");
dflet 3:7643714ec664 365
dflet 4:c27adffcfec2 366 /* Enable the DCMI */
dflet 4:c27adffcfec2 367 // __HAL_DCMI_ENABLE(&hdcmi);
dflet 4:c27adffcfec2 368 /* Enable the DMA */
dflet 4:c27adffcfec2 369 // __HAL_DMA_ENABLE(&hdma_dcmi);
dflet 4:c27adffcfec2 370
dflet 3:7643714ec664 371 HAL_NVIC_EnableIRQ(DMA2_Stream1_IRQn);
dflet 3:7643714ec664 372 HAL_NVIC_EnableIRQ(DCMI_IRQn);
dflet 4:c27adffcfec2 373 wait(1);
dflet 4:c27adffcfec2 374 printf("\r\nBuffer size = %d\r\n",sizeof(g_image.g_image_buffer));
dflet 2:b92db44a29b4 375 HAL_DCMI_Start_DMA(&hdcmi, DCMI_MODE_SNAPSHOT, (uint32_t)p_buffer, sizeof(g_image.g_image_buffer));
dflet 2:b92db44a29b4 376
dflet 2:b92db44a29b4 377 /* Wait for frame */
dflet 2:b92db44a29b4 378 while ((DCMI->CR & DCMI_CR_CAPTURE) != 0) {
dflet 3:7643714ec664 379 GPIO_IF_LedToggle(MCU_RED_LED_GPIO);
dflet 2:b92db44a29b4 380 }
dflet 3:7643714ec664 381 HAL_NVIC_DisableIRQ(DCMI_IRQn);
dflet 3:7643714ec664 382 HAL_NVIC_DisableIRQ(DMA2_Stream1_IRQn);
dflet 4:c27adffcfec2 383
dflet 4:c27adffcfec2 384 /* Disable the DMA */
dflet 4:c27adffcfec2 385 // __HAL_DMA_DISABLE(&hdma_dcmi);
dflet 4:c27adffcfec2 386 /* Disable the DCMI */
dflet 4:c27adffcfec2 387 // __HAL_DCMI_DISABLE(&hdcmi);
dflet 4:c27adffcfec2 388
dflet 2:b92db44a29b4 389 g_frame_end = 1;
dflet 2:b92db44a29b4 390
dflet 3:7643714ec664 391 Uart_Write((uint8_t*)"\n\rCaptureImage Complete\n\r");
dflet 2:b92db44a29b4 392 /* The frame is finished, but DMA still waiting
dflet 2:b92db44a29b4 393 for data because we set max frame size
dflet 2:b92db44a29b4 394 so we need to abort the DMA transfer here */
dflet 4:c27adffcfec2 395 // HAL_DMA_Abort(&hdma_dcmi);//need this???
dflet 2:b92db44a29b4 396
dflet 2:b92db44a29b4 397 /* Read the number of data items transferred */
dflet 2:b92db44a29b4 398 uint16_t image_size = (FRAME_SIZE_IN_BYTES - hdma_dcmi.Instance->NDTR)*4;
dflet 4:c27adffcfec2 399 printf("image_size = %d\r\n",image_size);
dflet 0:50cedd586816 400 //
dflet 0:50cedd586816 401 // Create JPEG Header
dflet 0:50cedd586816 402 //
dflet 0:50cedd586816 403 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 404 memset(g_image.g_header, '\0', sizeof(g_image.g_header));
dflet 0:50cedd586816 405 g_header_length = CreateJpegHeader((char *)&(g_image.g_header[0]), PIXELS_IN_X_AXIS,
dflet 0:50cedd586816 406 PIXELS_IN_Y_AXIS, 0, 0x0020, 9);
dflet 0:50cedd586816 407
dflet 0:50cedd586816 408 // This loop pushes the header to the end of the array so that the entire picture can be contiguous in memory
dflet 0:50cedd586816 409 unsigned short shift;
dflet 0:50cedd586816 410
dflet 0:50cedd586816 411 for(shift=1; shift <= g_header_length; shift++)
dflet 0:50cedd586816 412 {
dflet 0:50cedd586816 413 g_image.g_header[SMTP_BUF_LEN - shift] = g_image.g_header[g_header_length - shift];
dflet 0:50cedd586816 414
dflet 0:50cedd586816 415 }
dflet 0:50cedd586816 416 #endif
dflet 0:50cedd586816 417 *WriteBuffer = &(g_image.g_header[SMTP_BUF_LEN - g_header_length]);
dflet 0:50cedd586816 418
dflet 0:50cedd586816 419 return(g_header_length + g_frame_size_in_bytes);
dflet 0:50cedd586816 420 }
dflet 0:50cedd586816 421 //*****************************************************************************
dflet 0:50cedd586816 422 //
dflet 0:50cedd586816 423 //! DMA Config
dflet 0:50cedd586816 424 //! Initialize the DMA and Setup the DMA transfer
dflet 0:50cedd586816 425 //!
dflet 0:50cedd586816 426 //! \param None
dflet 0:50cedd586816 427 //! \return None
dflet 0:50cedd586816 428 //
dflet 0:50cedd586816 429 //*****************************************************************************
dflet 0:50cedd586816 430 static void DMAConfig()
dflet 0:50cedd586816 431 {
dflet 0:50cedd586816 432 Uart_Write((uint8_t*)"DMAConfig \n\r");
dflet 2:b92db44a29b4 433 // memset(g_image.g_image_buffer,0xF80F,sizeof(g_image.g_image_buffer));
dflet 2:b92db44a29b4 434 // p_buffer = &(g_image.g_image_buffer[0]);
dflet 0:50cedd586816 435 //
dflet 0:50cedd586816 436 // Initilalize DMA
dflet 0:50cedd586816 437 //
dflet 0:50cedd586816 438 // UDMAInit();
dflet 0:50cedd586816 439 //
dflet 0:50cedd586816 440 // Setup ping-pong transfer
dflet 0:50cedd586816 441 //
dflet 0:50cedd586816 442 // UDMASetupTransfer(UDMA_CH22_CAMERA,UDMA_MODE_PINGPONG,TOTAL_DMA_ELEMENTS,UDMA_SIZE_32,
dflet 0:50cedd586816 443 // UDMA_ARB_8,(void *)CAM_BUFFER_ADDR, UDMA_SRC_INC_32,
dflet 0:50cedd586816 444 // (void *)p_buffer, UDMA_DST_INC_32);
dflet 0:50cedd586816 445 //
dflet 0:50cedd586816 446 // Pong Buffer
dflet 0:50cedd586816 447 //
dflet 2:b92db44a29b4 448 // p_buffer += TOTAL_DMA_ELEMENTS;
dflet 0:50cedd586816 449 // UDMASetupTransfer(UDMA_CH22_CAMERA|UDMA_ALT_SELECT,UDMA_MODE_PINGPONG,TOTAL_DMA_ELEMENTS,
dflet 0:50cedd586816 450 // UDMA_SIZE_32, UDMA_ARB_8,(void *)CAM_BUFFER_ADDR,
dflet 0:50cedd586816 451 // UDMA_SRC_INC_32, (void *)p_buffer, UDMA_DST_INC_32);
dflet 0:50cedd586816 452 //
dflet 0:50cedd586816 453 // Ping Buffer
dflet 0:50cedd586816 454 //
dflet 2:b92db44a29b4 455 // p_buffer += TOTAL_DMA_ELEMENTS;
dflet 0:50cedd586816 456
dflet 0:50cedd586816 457 g_dma_txn_done = 0;
dflet 0:50cedd586816 458 g_frame_size_in_bytes = 0;
dflet 0:50cedd586816 459 g_frame_end = 0;
dflet 0:50cedd586816 460 g_total_dma_intrpts = 0;
dflet 0:50cedd586816 461
dflet 0:50cedd586816 462 //
dflet 0:50cedd586816 463 // Clear any pending interrupt
dflet 0:50cedd586816 464 //
dflet 0:50cedd586816 465 // CameraIntClear(CAMERA_BASE,CAM_INT_DMA);
dflet 0:50cedd586816 466
dflet 0:50cedd586816 467 //
dflet 0:50cedd586816 468 // DMA Interrupt unmask from apps config
dflet 0:50cedd586816 469 //
dflet 0:50cedd586816 470 // CameraIntEnable(CAMERA_BASE,CAM_INT_DMA);
dflet 0:50cedd586816 471 }
dflet 0:50cedd586816 472
dflet 0:50cedd586816 473 //*****************************************************************************
dflet 0:50cedd586816 474 //
dflet 0:50cedd586816 475 //! Camera Controller Initialisation
dflet 0:50cedd586816 476 //!
dflet 0:50cedd586816 477 //! \param None
dflet 0:50cedd586816 478 //! \return None
dflet 0:50cedd586816 479 //!
dflet 0:50cedd586816 480 //
dflet 0:50cedd586816 481 //*****************************************************************************
dflet 0:50cedd586816 482
dflet 0:50cedd586816 483 static void CamControllerInit()
dflet 0:50cedd586816 484 {
dflet 0:50cedd586816 485 Uart_Write((uint8_t*)"CamControllerInit \n\r");
dflet 0:50cedd586816 486 // DCMI_HandleTypeDef hdcmi;
dflet 0:50cedd586816 487 // MAP_PRCMPeripheralClkEnable(PRCM_CAMERA, PRCM_RUN_MODE_CLK);
dflet 0:50cedd586816 488 // MAP_PRCMPeripheralReset(PRCM_CAMERA);
dflet 0:50cedd586816 489
dflet 0:50cedd586816 490 #ifndef ENABLE_JPEG
dflet 0:50cedd586816 491 // Configure Camera clock
dflet 0:50cedd586816 492 // CamClkIn = ((240)/((1+1)+(1+1))) = 60 MHz
dflet 0:50cedd586816 493 // PRCMCameraFreqSet(4, 2);
dflet 0:50cedd586816 494 #else
dflet 0:50cedd586816 495 // PRCMCameraFreqSet(2,1);
dflet 0:50cedd586816 496 #endif
dflet 0:50cedd586816 497
dflet 0:50cedd586816 498 // MAP_CameraReset(CAMERA_BASE);
dflet 0:50cedd586816 499
dflet 0:50cedd586816 500 #ifndef ENABLE_JPEG
dflet 0:50cedd586816 501 // MAP_CameraParamsConfig(CAMERA_BASE, CAM_HS_POL_HI, CAM_VS_POL_HI,
dflet 0:50cedd586816 502 // CAM_ORDERCAM_SWAP|CAM_NOBT_SYNCHRO);
dflet 0:50cedd586816 503 #else
dflet 0:50cedd586816 504 // MAP_CameraParamsConfig(CAMERA_BASE, CAM_HS_POL_HI,CAM_VS_POL_HI,
dflet 0:50cedd586816 505 // CAM_NOBT_SYNCHRO|CAM_IF_SYNCHRO|CAM_BT_CORRECT_EN);
dflet 0:50cedd586816 506 #endif
dflet 0:50cedd586816 507
dflet 0:50cedd586816 508 // MAP_CameraIntRegister(CAMERA_BASE, CameraIntHandler);
dflet 0:50cedd586816 509
dflet 0:50cedd586816 510 #ifndef ENABLE_JPEG
dflet 0:50cedd586816 511 // MAP_CameraXClkConfig(CAMERA_BASE, 60000000,3750000);
dflet 0:50cedd586816 512 #else
dflet 0:50cedd586816 513 // MAP_CameraXClkConfig(CAMERA_BASE, 120000000,24000000);
dflet 0:50cedd586816 514 #endif
dflet 0:50cedd586816 515
dflet 0:50cedd586816 516 // MAP_CameraThresholdSet(CAMERA_BASE, 8);
dflet 0:50cedd586816 517 // MAP_CameraIntEnable(CAMERA_BASE, CAM_INT_FE);
dflet 0:50cedd586816 518 // MAP_CameraDMAEnable(CAMERA_BASE);
dflet 0:50cedd586816 519
dflet 0:50cedd586816 520 }
dflet 0:50cedd586816 521
dflet 0:50cedd586816 522
dflet 0:50cedd586816 523 //*****************************************************************************
dflet 0:50cedd586816 524 //
dflet 0:50cedd586816 525 //! Camera Interrupt Handler
dflet 0:50cedd586816 526 //!
dflet 0:50cedd586816 527 //! \param None
dflet 0:50cedd586816 528 //! \return None
dflet 0:50cedd586816 529 //
dflet 0:50cedd586816 530 //*****************************************************************************
dflet 0:50cedd586816 531 static void CameraIntHandler()
dflet 0:50cedd586816 532 {
dflet 0:50cedd586816 533 Uart_Write((uint8_t*)"CameraIntHandler \n\r");
dflet 4:c27adffcfec2 534 // DCMI_HandleTypeDef hdcmi;
dflet 4:c27adffcfec2 535 // DMA_HandleTypeDef hdma_dcmi;
dflet 0:50cedd586816 536 //MAP_CameraIntClear(CAMERA_BASE, CAM_INT_FE);
dflet 0:50cedd586816 537 // if(g_total_dma_intrpts > 1 && MAP_CameraIntStatus(CAMERA_BASE) & CAM_INT_FE)
dflet 0:50cedd586816 538 // {
dflet 0:50cedd586816 539 // MAP_CameraIntClear(CAMERA_BASE, CAM_INT_FE);
dflet 0:50cedd586816 540 // g_frame_end = 1;
dflet 0:50cedd586816 541 // MAP_CameraCaptureStop(CAMERA_BASE, true);
dflet 0:50cedd586816 542 // }
dflet 0:50cedd586816 543
dflet 0:50cedd586816 544 // if(CameraIntStatus(CAMERA_BASE)& CAM_INT_DMA)
dflet 0:50cedd586816 545 // {
dflet 0:50cedd586816 546 // Camera DMA Done clear
dflet 0:50cedd586816 547 // CameraIntClear(CAMERA_BASE,CAM_INT_DMA);
dflet 0:50cedd586816 548
dflet 0:50cedd586816 549 // g_total_dma_intrpts++;
dflet 0:50cedd586816 550
dflet 0:50cedd586816 551 // g_frame_size_in_bytes += (TOTAL_DMA_ELEMENTS*sizeof(unsigned long));
dflet 0:50cedd586816 552 // if(g_frame_size_in_bytes < FRAME_SIZE_IN_BYTES && g_frame_size_in_bytes < IMAGE_BUF_SIZE)
dflet 0:50cedd586816 553 // {
dflet 0:50cedd586816 554 // if(g_dma_txn_done == 0)
dflet 0:50cedd586816 555 // {
dflet 0:50cedd586816 556 // UDMASetupTransfer(UDMA_CH22_CAMERA,UDMA_MODE_PINGPONG,TOTAL_DMA_ELEMENTS,UDMA_SIZE_32,
dflet 0:50cedd586816 557 // UDMA_ARB_8,(void *)CAM_BUFFER_ADDR, UDMA_SRC_INC_32,
dflet 0:50cedd586816 558 // (void *)p_buffer, UDMA_DST_INC_32);
dflet 0:50cedd586816 559 // p_buffer += TOTAL_DMA_ELEMENTS;
dflet 0:50cedd586816 560 // g_dma_txn_done = 1;
dflet 0:50cedd586816 561 // }
dflet 0:50cedd586816 562 // else
dflet 0:50cedd586816 563 // {
dflet 0:50cedd586816 564 // UDMASetupTransfer(UDMA_CH22_CAMERA|UDMA_ALT_SELECT,UDMA_MODE_PINGPONG,TOTAL_DMA_ELEMENTS,
dflet 0:50cedd586816 565 // UDMA_SIZE_32, UDMA_ARB_8,(void *)CAM_BUFFER_ADDR,
dflet 0:50cedd586816 566 // UDMA_SRC_INC_32, (void *)p_buffer, UDMA_DST_INC_32);
dflet 0:50cedd586816 567 // p_buffer += TOTAL_DMA_ELEMENTS;
dflet 0:50cedd586816 568 // g_dma_txn_done = 0;
dflet 0:50cedd586816 569 // }
dflet 0:50cedd586816 570 // }
dflet 0:50cedd586816 571 // else
dflet 0:50cedd586816 572 // {
dflet 0:50cedd586816 573 // Disable DMA
dflet 0:50cedd586816 574 // wait_us(25);
dflet 0:50cedd586816 575 // MAP_UtilsDelay(20000);
dflet 0:50cedd586816 576 // MAP_uDMAChannelDisable(UDMA_CH22_CAMERA);
dflet 0:50cedd586816 577 // CameraIntDisable(CAMERA_BASE,CAM_INT_DMA);
dflet 0:50cedd586816 578 // g_frame_end = 1;
dflet 0:50cedd586816 579 // }
dflet 0:50cedd586816 580 // }
dflet 0:50cedd586816 581 /* Enable DMA2 stream 1 and DCMI interface then start image capture */
dflet 0:50cedd586816 582 // DMA_Cmd(DMA2_Stream1, ENABLE);
dflet 0:50cedd586816 583 // DCMI_Cmd(ENABLE);
dflet 0:50cedd586816 584
dflet 0:50cedd586816 585 /* Insert 100ms delay: wait 100ms */
dflet 0:50cedd586816 586 // wait_ms(100);
dflet 0:50cedd586816 587
dflet 1:1a80c1529aa3 588 // DCMI_CaptureCmd(ENABLE);
dflet 1:1a80c1529aa3 589 //HAL_DCMI_Start_DMA(hdcmi, DCMI_MODE_SNAPSHOT, WriteBuffer, Length)
dflet 0:50cedd586816 590 }
dflet 0:50cedd586816 591
dflet 0:50cedd586816 592 //*****************************************************************************
dflet 0:50cedd586816 593 //
dflet 0:50cedd586816 594 //! JfifApp0Marker
dflet 0:50cedd586816 595 //!
dflet 0:50cedd586816 596 //! \param Pointer to the output buffer
dflet 0:50cedd586816 597 //! \return Length of the Marker
dflet 0:50cedd586816 598 //
dflet 0:50cedd586816 599 //*****************************************************************************
dflet 0:50cedd586816 600
dflet 0:50cedd586816 601 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 602 static int JfifApp0Marker(char *pbuf)
dflet 0:50cedd586816 603 {
dflet 0:50cedd586816 604 *pbuf++= 0xFF; // APP0 marker
dflet 0:50cedd586816 605 *pbuf++= 0xE0;
dflet 0:50cedd586816 606 *pbuf++= 0x00; // length
dflet 0:50cedd586816 607 *pbuf++= 0x10;
dflet 0:50cedd586816 608 *pbuf++= 0x4A; // JFIF identifier
dflet 0:50cedd586816 609 *pbuf++= 0x46;
dflet 0:50cedd586816 610 *pbuf++= 0x49;
dflet 0:50cedd586816 611 *pbuf++= 0x46;
dflet 0:50cedd586816 612 *pbuf++= 0x00;
dflet 0:50cedd586816 613 *pbuf++= 0x01; // version
dflet 0:50cedd586816 614 *pbuf++= 0x02;
dflet 0:50cedd586816 615 *pbuf++= 0x00; // units
dflet 0:50cedd586816 616 *pbuf++= 0x00; // X density
dflet 0:50cedd586816 617 *pbuf++= 0x01;
dflet 0:50cedd586816 618 *pbuf++= 0x00; // Y density
dflet 0:50cedd586816 619 *pbuf++= 0x01;
dflet 0:50cedd586816 620 *pbuf++= 0x00; // X thumbnail
dflet 0:50cedd586816 621 *pbuf++= 0x00; // Y thumbnail
dflet 0:50cedd586816 622 return 18;
dflet 0:50cedd586816 623 }
dflet 0:50cedd586816 624
dflet 0:50cedd586816 625
dflet 0:50cedd586816 626 //*****************************************************************************
dflet 0:50cedd586816 627 //
dflet 0:50cedd586816 628 //! FrameHeaderMarker
dflet 0:50cedd586816 629 //!
dflet 0:50cedd586816 630 //! \param1 pointer to the output buffer
dflet 0:50cedd586816 631 //! \param2 width
dflet 0:50cedd586816 632 //! \param3 height
dflet 0:50cedd586816 633 //! \param4 format
dflet 0:50cedd586816 634 //!
dflet 0:50cedd586816 635 //! \return Length of the header marker
dflet 0:50cedd586816 636 //
dflet 0:50cedd586816 637 //*****************************************************************************
dflet 0:50cedd586816 638 static int FrameHeaderMarker(char *pbuf, int width, int height, int format)
dflet 0:50cedd586816 639 {
dflet 0:50cedd586816 640 int length;
dflet 0:50cedd586816 641 if (format == FORMAT_MONOCHROME)
dflet 0:50cedd586816 642 length = 11;
dflet 0:50cedd586816 643 else
dflet 0:50cedd586816 644 length = 17;
dflet 0:50cedd586816 645
dflet 0:50cedd586816 646 *pbuf++= 0xFF; // start of frame: baseline DCT
dflet 0:50cedd586816 647 *pbuf++= 0xC0;
dflet 0:50cedd586816 648 *pbuf++= length>>8; // length field
dflet 0:50cedd586816 649 *pbuf++= length&0xFF;
dflet 0:50cedd586816 650 *pbuf++= 0x08; // sample precision
dflet 0:50cedd586816 651 *pbuf++= height>>8; // number of lines
dflet 0:50cedd586816 652 *pbuf++= height&0xFF;
dflet 0:50cedd586816 653 *pbuf++= width>>8; // number of samples per line
dflet 0:50cedd586816 654 *pbuf++= width&0xFF;
dflet 0:50cedd586816 655
dflet 0:50cedd586816 656 if (format == FORMAT_MONOCHROME) // monochrome
dflet 0:50cedd586816 657 {
dflet 0:50cedd586816 658 *pbuf++= 0x01; // number of image components in frame
dflet 0:50cedd586816 659 *pbuf++= 0x00; // component identifier: Y
dflet 0:50cedd586816 660 *pbuf++= 0x11; // horizontal | vertical sampling factor: Y
dflet 0:50cedd586816 661 *pbuf++= 0x00; // quantization table selector: Y
dflet 0:50cedd586816 662 }
dflet 0:50cedd586816 663 else if (format == FORMAT_YCBCR422) // YCbCr422
dflet 0:50cedd586816 664 {
dflet 0:50cedd586816 665 *pbuf++= 0x03; // number of image components in frame
dflet 0:50cedd586816 666 *pbuf++= 0x00; // component identifier: Y
dflet 0:50cedd586816 667 *pbuf++= 0x21; // horizontal | vertical sampling factor: Y
dflet 0:50cedd586816 668 *pbuf++= 0x00; // quantization table selector: Y
dflet 0:50cedd586816 669 *pbuf++= 0x01; // component identifier: Cb
dflet 0:50cedd586816 670 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cb
dflet 0:50cedd586816 671 *pbuf++= 0x01; // quantization table selector: Cb
dflet 0:50cedd586816 672 *pbuf++= 0x02; // component identifier: Cr
dflet 0:50cedd586816 673 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cr
dflet 0:50cedd586816 674 *pbuf++= 0x01; // quantization table selector: Cr
dflet 0:50cedd586816 675 }
dflet 0:50cedd586816 676 else // YCbCr420
dflet 0:50cedd586816 677 {
dflet 0:50cedd586816 678 *pbuf++= 0x03; // number of image components in frame
dflet 0:50cedd586816 679 *pbuf++= 0x00; // component identifier: Y
dflet 0:50cedd586816 680 *pbuf++= 0x22; // horizontal | vertical sampling factor: Y
dflet 0:50cedd586816 681 *pbuf++= 0x00; // quantization table selector: Y
dflet 0:50cedd586816 682 *pbuf++= 0x01; // component identifier: Cb
dflet 0:50cedd586816 683 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cb
dflet 0:50cedd586816 684 *pbuf++= 0x01; // quantization table selector: Cb
dflet 0:50cedd586816 685 *pbuf++= 0x02; // component identifier: Cr
dflet 0:50cedd586816 686 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cr
dflet 0:50cedd586816 687 *pbuf++= 0x01; // quantization table selector: Cr
dflet 0:50cedd586816 688 }
dflet 0:50cedd586816 689
dflet 0:50cedd586816 690 return (length+2);
dflet 0:50cedd586816 691 }
dflet 0:50cedd586816 692
dflet 0:50cedd586816 693
dflet 0:50cedd586816 694 //*****************************************************************************
dflet 0:50cedd586816 695 //
dflet 0:50cedd586816 696 //! ScanHeaderMarker
dflet 0:50cedd586816 697 //!
dflet 0:50cedd586816 698 //! \param1 pointer to output buffer
dflet 0:50cedd586816 699 //! \param2 Format
dflet 0:50cedd586816 700 //!
dflet 0:50cedd586816 701 //! \return Length
dflet 0:50cedd586816 702 //
dflet 0:50cedd586816 703 //*****************************************************************************
dflet 0:50cedd586816 704 static int ScanHeaderMarker(char *pbuf, int format)
dflet 0:50cedd586816 705 {
dflet 0:50cedd586816 706 int length;
dflet 0:50cedd586816 707 if (format == FORMAT_MONOCHROME)
dflet 0:50cedd586816 708 length = 8;
dflet 0:50cedd586816 709 else
dflet 0:50cedd586816 710 length = 12;
dflet 0:50cedd586816 711
dflet 0:50cedd586816 712 *pbuf++= 0xFF; // start of scan
dflet 0:50cedd586816 713 *pbuf++= 0xDA;
dflet 0:50cedd586816 714 *pbuf++= length>>8; // length field
dflet 0:50cedd586816 715 *pbuf++= length&0xFF;
dflet 0:50cedd586816 716 if (format == FORMAT_MONOCHROME)// monochrome
dflet 0:50cedd586816 717 {
dflet 0:50cedd586816 718 *pbuf++= 0x01; // number of image components in scan
dflet 0:50cedd586816 719 *pbuf++= 0x00; // scan component selector: Y
dflet 0:50cedd586816 720 *pbuf++= 0x00; // DC | AC huffman table selector: Y
dflet 0:50cedd586816 721 }
dflet 0:50cedd586816 722 else // YCbCr
dflet 0:50cedd586816 723 {
dflet 0:50cedd586816 724 *pbuf++= 0x03; // number of image components in scan
dflet 0:50cedd586816 725 *pbuf++= 0x00; // scan component selector: Y
dflet 0:50cedd586816 726 *pbuf++= 0x00; // DC | AC huffman table selector: Y
dflet 0:50cedd586816 727 *pbuf++= 0x01; // scan component selector: Cb
dflet 0:50cedd586816 728 *pbuf++= 0x11; // DC | AC huffman table selector: Cb
dflet 0:50cedd586816 729 *pbuf++= 0x02; // scan component selector: Cr
dflet 0:50cedd586816 730 *pbuf++= 0x11; // DC | AC huffman table selector: Cr
dflet 0:50cedd586816 731 }
dflet 0:50cedd586816 732
dflet 0:50cedd586816 733 *pbuf++= 0x00; // Ss: start of predictor selector
dflet 0:50cedd586816 734 *pbuf++= 0x3F; // Se: end of spectral selector
dflet 0:50cedd586816 735 *pbuf++= 0x00; // Ah | Al: successive approximation bit position
dflet 0:50cedd586816 736
dflet 0:50cedd586816 737 return (length+2);
dflet 0:50cedd586816 738 }
dflet 0:50cedd586816 739
dflet 0:50cedd586816 740
dflet 0:50cedd586816 741 //*****************************************************************************
dflet 0:50cedd586816 742 //
dflet 0:50cedd586816 743 //! DefineQuantizationTableMarker
dflet 0:50cedd586816 744 //! Calculate and write the quantisation tables
dflet 0:50cedd586816 745 //! qscale is the customised scaling factor - see MT9D131 developer guide page 78
dflet 0:50cedd586816 746 //!
dflet 0:50cedd586816 747 //! \param1 pointer to the output buffer
dflet 0:50cedd586816 748 //! \param2 Quantization Scale
dflet 0:50cedd586816 749 //! \param3 Format
dflet 0:50cedd586816 750 //!
dflet 0:50cedd586816 751 //! \return Length of the Marker
dflet 0:50cedd586816 752 //
dflet 0:50cedd586816 753 //*****************************************************************************
dflet 0:50cedd586816 754 static int DefineQuantizationTableMarker (unsigned char *pbuf, int qscale, int format)
dflet 0:50cedd586816 755 {
dflet 0:50cedd586816 756 int i, length, temp;
dflet 0:50cedd586816 757 unsigned char newtbl[64]; // temporary array to store scaled zigzagged quant entries
dflet 0:50cedd586816 758
dflet 0:50cedd586816 759 if (format == FORMAT_MONOCHROME) // monochrome
dflet 0:50cedd586816 760 length = 67;
dflet 0:50cedd586816 761 else
dflet 0:50cedd586816 762 length = 132;
dflet 0:50cedd586816 763
dflet 0:50cedd586816 764 *pbuf++ = 0xFF; // define quantization table marker
dflet 0:50cedd586816 765 *pbuf++ = 0xDB;
dflet 0:50cedd586816 766 *pbuf++ = length>>8; // length field
dflet 0:50cedd586816 767 *pbuf++ = length&0xFF;
dflet 0:50cedd586816 768 *pbuf++ = 0; // quantization table precision | identifier for luminance
dflet 0:50cedd586816 769
dflet 0:50cedd586816 770 // calculate scaled zigzagged luminance quantisation table entries
dflet 0:50cedd586816 771 for (i=0; i<64; i++) {
dflet 0:50cedd586816 772 temp = (JPEG_StdQuantTblY[i] * qscale + 16) / 32;
dflet 0:50cedd586816 773 // limit the values to the valid range
dflet 0:50cedd586816 774 if (temp <= 0)
dflet 0:50cedd586816 775 temp = 1;
dflet 0:50cedd586816 776 if (temp > 255)
dflet 0:50cedd586816 777 temp = 255;
dflet 0:50cedd586816 778 newtbl[zigzag[i]] = (unsigned char) temp;
dflet 0:50cedd586816 779 }
dflet 0:50cedd586816 780
dflet 0:50cedd586816 781 // write the resulting luminance quant table to the output buffer
dflet 0:50cedd586816 782 for (i=0; i<64; i++)
dflet 0:50cedd586816 783 *pbuf++ = newtbl[i];
dflet 0:50cedd586816 784
dflet 0:50cedd586816 785 // if format is monochrome we're finished, otherwise continue on, to do chrominance quant table
dflet 0:50cedd586816 786 if (format == FORMAT_MONOCHROME)
dflet 0:50cedd586816 787 return (length+2);
dflet 0:50cedd586816 788
dflet 0:50cedd586816 789 *pbuf++ = 1; // quantization table precision | identifier for chrominance
dflet 0:50cedd586816 790
dflet 0:50cedd586816 791 // calculate scaled zigzagged chrominance quantisation table entries
dflet 0:50cedd586816 792 for (i=0; i<64; i++) {
dflet 0:50cedd586816 793 temp = (JPEG_StdQuantTblC[i] * qscale + 16) / 32;
dflet 0:50cedd586816 794 // limit the values to the valid range
dflet 0:50cedd586816 795 if (temp <= 0)
dflet 0:50cedd586816 796 temp = 1;
dflet 0:50cedd586816 797 if (temp > 255)
dflet 0:50cedd586816 798 temp = 255;
dflet 0:50cedd586816 799 newtbl[zigzag[i]] = (unsigned char) temp;
dflet 0:50cedd586816 800 }
dflet 0:50cedd586816 801
dflet 0:50cedd586816 802 // write the resulting chrominance quant table to the output buffer
dflet 0:50cedd586816 803 for (i=0; i<64; i++)
dflet 0:50cedd586816 804 *pbuf++ = newtbl[i];
dflet 0:50cedd586816 805
dflet 0:50cedd586816 806 return (length+2);
dflet 0:50cedd586816 807 }
dflet 0:50cedd586816 808
dflet 0:50cedd586816 809
dflet 0:50cedd586816 810 //*****************************************************************************
dflet 0:50cedd586816 811 //
dflet 0:50cedd586816 812 //! DefineHuffmanTableMarkerDC
dflet 0:50cedd586816 813 //!
dflet 0:50cedd586816 814 //! \param1 pointer to Marker buffer
dflet 0:50cedd586816 815 //! \param2 Huffman table
dflet 0:50cedd586816 816 //! \param3 Class Identifier
dflet 0:50cedd586816 817 //!
dflet 0:50cedd586816 818 //! \return Length of the marker
dflet 0:50cedd586816 819 //
dflet 0:50cedd586816 820 //*****************************************************************************
dflet 0:50cedd586816 821 static int DefineHuffmanTableMarkerDC(char *pbuf, unsigned int *htable, int class_id)
dflet 0:50cedd586816 822 {
dflet 0:50cedd586816 823 int i, l, count;
dflet 0:50cedd586816 824 int length;
dflet 0:50cedd586816 825 char *plength;
dflet 0:50cedd586816 826
dflet 0:50cedd586816 827 *pbuf++= 0xFF; // define huffman table marker
dflet 0:50cedd586816 828 *pbuf++= 0xC4;
dflet 0:50cedd586816 829 plength = pbuf; // place holder for length field
dflet 0:50cedd586816 830 *pbuf++;
dflet 0:50cedd586816 831 *pbuf++;
dflet 0:50cedd586816 832 *pbuf++= class_id; // huffman table class | identifier
dflet 0:50cedd586816 833
dflet 0:50cedd586816 834 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 835 {
dflet 0:50cedd586816 836 count = 0;
dflet 0:50cedd586816 837 for (i = 0; i < 12; i++)
dflet 0:50cedd586816 838 {
dflet 0:50cedd586816 839 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 840 count++;
dflet 0:50cedd586816 841 }
dflet 0:50cedd586816 842 *pbuf++= count; // number of huffman codes of length l+1
dflet 0:50cedd586816 843 }
dflet 0:50cedd586816 844
dflet 0:50cedd586816 845 length = 19;
dflet 0:50cedd586816 846 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 847 {
dflet 0:50cedd586816 848 for (i = 0; i < 12; i++)
dflet 0:50cedd586816 849 {
dflet 0:50cedd586816 850 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 851 {
dflet 0:50cedd586816 852 *pbuf++= i; // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 853 length++;
dflet 0:50cedd586816 854 }
dflet 0:50cedd586816 855 }
dflet 0:50cedd586816 856 }
dflet 0:50cedd586816 857
dflet 0:50cedd586816 858 *plength++= length>>8; // length field
dflet 0:50cedd586816 859 *plength = length&0xFF;
dflet 0:50cedd586816 860
dflet 0:50cedd586816 861 return (length + 2);
dflet 0:50cedd586816 862 }
dflet 0:50cedd586816 863
dflet 0:50cedd586816 864
dflet 0:50cedd586816 865 //*****************************************************************************
dflet 0:50cedd586816 866 //
dflet 0:50cedd586816 867 //! DefineHuffmanTableMarkerAC
dflet 0:50cedd586816 868 //! 1. Establishes connection w/ AP//
dflet 0:50cedd586816 869 //! 2. Initializes the camera sub-components//! GPIO Enable & Configuration
dflet 0:50cedd586816 870 //! 3. Listens and processes the image capture requests from user-applications
dflet 0:50cedd586816 871 //!
dflet 0:50cedd586816 872 //! \param1 pointer to Marker buffer
dflet 0:50cedd586816 873 //! \param2 Huffman table
dflet 0:50cedd586816 874 //! \param3 Class Identifier
dflet 0:50cedd586816 875 //!
dflet 0:50cedd586816 876 //! \return Length of the Marker
dflet 0:50cedd586816 877 //!
dflet 0:50cedd586816 878 //
dflet 0:50cedd586816 879 //*****************************************************************************
dflet 0:50cedd586816 880 static int DefineHuffmanTableMarkerAC(char *pbuf, unsigned int *htable, int class_id)
dflet 0:50cedd586816 881 {
dflet 0:50cedd586816 882 int i, l, a, b, count;
dflet 0:50cedd586816 883 char *plength;
dflet 0:50cedd586816 884 int length;
dflet 0:50cedd586816 885
dflet 0:50cedd586816 886 *pbuf++= 0xFF; // define huffman table marker
dflet 0:50cedd586816 887 *pbuf++= 0xC4;
dflet 0:50cedd586816 888 plength = pbuf; // place holder for length field
dflet 0:50cedd586816 889 *pbuf++;
dflet 0:50cedd586816 890 *pbuf++;
dflet 0:50cedd586816 891 *pbuf++= class_id; // huffman table class | identifier
dflet 0:50cedd586816 892
dflet 0:50cedd586816 893 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 894 {
dflet 0:50cedd586816 895 count = 0;
dflet 0:50cedd586816 896 for (i = 0; i < 162; i++)
dflet 0:50cedd586816 897 {
dflet 0:50cedd586816 898 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 899 count++;
dflet 0:50cedd586816 900 }
dflet 0:50cedd586816 901
dflet 0:50cedd586816 902 *pbuf++= count; // number of huffman codes of length l+1
dflet 0:50cedd586816 903 }
dflet 0:50cedd586816 904
dflet 0:50cedd586816 905 length = 19;
dflet 0:50cedd586816 906 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 907 {
dflet 0:50cedd586816 908 // check EOB: 0|0
dflet 0:50cedd586816 909 if ((htable[160] >> 8) == l)
dflet 0:50cedd586816 910 {
dflet 0:50cedd586816 911 *pbuf++= 0; // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 912 length++;
dflet 0:50cedd586816 913 }
dflet 0:50cedd586816 914
dflet 0:50cedd586816 915 // check HUFFVAL: 0|1 to E|A
dflet 0:50cedd586816 916 for (i = 0; i < 150; i++)
dflet 0:50cedd586816 917 {
dflet 0:50cedd586816 918 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 919 {
dflet 0:50cedd586816 920 a = i/10;
dflet 0:50cedd586816 921 b = i%10;
dflet 0:50cedd586816 922 *pbuf++= (a<<4)|(b+1); // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 923 length++;
dflet 0:50cedd586816 924 }
dflet 0:50cedd586816 925 }
dflet 0:50cedd586816 926
dflet 0:50cedd586816 927 // check ZRL: F|0
dflet 0:50cedd586816 928 if ((htable[161] >> 8) == l)
dflet 0:50cedd586816 929 {
dflet 0:50cedd586816 930 *pbuf++= 0xF0; // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 931 length++;
dflet 0:50cedd586816 932 }
dflet 0:50cedd586816 933
dflet 0:50cedd586816 934 // check HUFFVAL: F|1 to F|A
dflet 0:50cedd586816 935 for (i = 150; i < 160; i++)
dflet 0:50cedd586816 936 {
dflet 0:50cedd586816 937 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 938 {
dflet 0:50cedd586816 939 a = i/10;
dflet 0:50cedd586816 940 b = i%10;
dflet 0:50cedd586816 941 *pbuf++= (a<<4)|(b+1); // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 942 length++;
dflet 0:50cedd586816 943 }
dflet 0:50cedd586816 944 }
dflet 0:50cedd586816 945 }
dflet 0:50cedd586816 946
dflet 0:50cedd586816 947 *plength++= length>>8; // length field
dflet 0:50cedd586816 948 *plength = length&0xFF;
dflet 0:50cedd586816 949 return (length + 2);
dflet 0:50cedd586816 950 }
dflet 0:50cedd586816 951
dflet 0:50cedd586816 952
dflet 0:50cedd586816 953 //*****************************************************************************
dflet 0:50cedd586816 954 //
dflet 0:50cedd586816 955 //! DefineRestartIntervalMarker
dflet 0:50cedd586816 956 //!
dflet 0:50cedd586816 957 //! \param1 pointer to Marker buffer
dflet 0:50cedd586816 958 //! \param2 return interval
dflet 0:50cedd586816 959 //!
dflet 0:50cedd586816 960 //! \return Length
dflet 0:50cedd586816 961 //
dflet 0:50cedd586816 962 //*****************************************************************************
dflet 0:50cedd586816 963 static int DefineRestartIntervalMarker(char *pbuf, int ri)
dflet 0:50cedd586816 964 {
dflet 0:50cedd586816 965 *pbuf++= 0xFF; // define restart interval marker
dflet 0:50cedd586816 966 *pbuf++= 0xDD;
dflet 0:50cedd586816 967 *pbuf++= 0x00; // length
dflet 0:50cedd586816 968 *pbuf++= 0x04;
dflet 0:50cedd586816 969 *pbuf++= ri >> 8; // restart interval
dflet 0:50cedd586816 970 *pbuf++= ri & 0xFF;
dflet 0:50cedd586816 971 return 6;
dflet 0:50cedd586816 972 }
dflet 0:50cedd586816 973 //*****************************************************************************
dflet 0:50cedd586816 974 //
dflet 0:50cedd586816 975 //! CreateJpegHeader
dflet 0:50cedd586816 976 //! Create JPEG Header in JFIF format
dflet 0:50cedd586816 977 //!
dflet 0:50cedd586816 978 //! \param1 header - pointer to JPEG header buffer
dflet 0:50cedd586816 979 //! \param2 width - image width
dflet 0:50cedd586816 980 //! \param3 height - image height
dflet 0:50cedd586816 981 //! \param4 format - color format (0 = YCbCr422, 1 = YCbCr420, 2 = monochrome)
dflet 0:50cedd586816 982 //! \param5 restart_int - restart marker interval
dflet 0:50cedd586816 983 //! \param6 qscale - quantization table scaling factor
dflet 0:50cedd586816 984 //!
dflet 0:50cedd586816 985 //! \return length of JPEG header (bytes)
dflet 0:50cedd586816 986 //
dflet 0:50cedd586816 987 //*****************************************************************************
dflet 0:50cedd586816 988
dflet 0:50cedd586816 989 static int CreateJpegHeader(char *header, int width, int height,
dflet 0:50cedd586816 990 int format, int restart_int, int qscale)
dflet 0:50cedd586816 991 {
dflet 0:50cedd586816 992 Uart_Write((uint8_t*)"CreateJpegHeader \n\r");
dflet 0:50cedd586816 993 char *pbuf = header;
dflet 0:50cedd586816 994 int length;
dflet 0:50cedd586816 995
dflet 0:50cedd586816 996 // SOI
dflet 0:50cedd586816 997 *pbuf++= 0xFF;
dflet 0:50cedd586816 998 *pbuf++= 0xD8;
dflet 0:50cedd586816 999 length = 2;
dflet 0:50cedd586816 1000
dflet 0:50cedd586816 1001 // JFIF APP0
dflet 0:50cedd586816 1002 length += JfifApp0Marker(pbuf);
dflet 0:50cedd586816 1003
dflet 0:50cedd586816 1004 // Quantization Tables
dflet 0:50cedd586816 1005 pbuf = header + length;
dflet 0:50cedd586816 1006 length += DefineQuantizationTableMarker((unsigned char *)pbuf, qscale, format);
dflet 0:50cedd586816 1007
dflet 0:50cedd586816 1008 // Frame Header
dflet 0:50cedd586816 1009 pbuf = header + length;
dflet 0:50cedd586816 1010 length += FrameHeaderMarker(pbuf, width, height, format);
dflet 0:50cedd586816 1011
dflet 0:50cedd586816 1012 // Huffman Table DC 0 for Luma
dflet 0:50cedd586816 1013 pbuf = header + length;
dflet 0:50cedd586816 1014 length += DefineHuffmanTableMarkerDC(pbuf, &JPEG_StdHuffmanTbl[352], 0x00);
dflet 0:50cedd586816 1015
dflet 0:50cedd586816 1016 // Huffman Table AC 0 for Luma
dflet 0:50cedd586816 1017 pbuf = header + length;
dflet 0:50cedd586816 1018 length += DefineHuffmanTableMarkerAC(pbuf, &JPEG_StdHuffmanTbl[0], 0x10);
dflet 0:50cedd586816 1019
dflet 0:50cedd586816 1020 if (format != FORMAT_MONOCHROME)// YCbCr
dflet 0:50cedd586816 1021 {
dflet 0:50cedd586816 1022 // Huffman Table DC 1 for Chroma
dflet 0:50cedd586816 1023 pbuf = header + length;
dflet 0:50cedd586816 1024 length += DefineHuffmanTableMarkerDC(pbuf, &JPEG_StdHuffmanTbl[368], 0x01);
dflet 0:50cedd586816 1025
dflet 0:50cedd586816 1026 // Huffman Table AC 1 for Chroma
dflet 0:50cedd586816 1027 pbuf = header + length;
dflet 0:50cedd586816 1028 length += DefineHuffmanTableMarkerAC(pbuf, &JPEG_StdHuffmanTbl[176], 0x11);
dflet 0:50cedd586816 1029 }
dflet 0:50cedd586816 1030
dflet 0:50cedd586816 1031 // Restart Interval
dflet 0:50cedd586816 1032 if (restart_int > 0)
dflet 0:50cedd586816 1033 {
dflet 0:50cedd586816 1034 pbuf = header + length;
dflet 0:50cedd586816 1035 length += DefineRestartIntervalMarker(pbuf, restart_int);
dflet 0:50cedd586816 1036 }
dflet 0:50cedd586816 1037
dflet 0:50cedd586816 1038 // Scan Header
dflet 0:50cedd586816 1039 pbuf = header + length;
dflet 0:50cedd586816 1040 length += ScanHeaderMarker(pbuf, format);
dflet 0:50cedd586816 1041
dflet 0:50cedd586816 1042 return length;
dflet 0:50cedd586816 1043 }
dflet 0:50cedd586816 1044 #endif
dflet 0:50cedd586816 1045
dflet 0:50cedd586816 1046
dflet 0:50cedd586816 1047
dflet 0:50cedd586816 1048 //*****************************************************************************
dflet 0:50cedd586816 1049 //
dflet 0:50cedd586816 1050 // Close the Doxygen group.
dflet 0:50cedd586816 1051 //! @}
dflet 0:50cedd586816 1052 //
dflet 0:50cedd586816 1053 //*****************************************************************************
dflet 0:50cedd586816 1054