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@3:7643714ec664, 2015-06-26 (annotated)

Committer:
dflet
Date:
Fri Jun 26 22:53:54 2015 +0000
Revision:
3:7643714ec664
Parent:
2:b92db44a29b4
Child:
4:c27adffcfec2
WIP commit 4

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 0:50cedd586816 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 0:50cedd586816 52 #include "camera_app.h"
dflet 0:50cedd586816 53
dflet 0:50cedd586816 54 #include "mt9d111.h"
dflet 0:50cedd586816 55 #include "i2cconfig.h"
dflet 0:50cedd586816 56 #include "cli_uart.h"
dflet 3:7643714ec664 57 #include "Led_config.h"
dflet 0:50cedd586816 58
dflet 0:50cedd586816 59 using namespace mbed_cc3100;
dflet 0:50cedd586816 60
dflet 0:50cedd586816 61 #define ENABLE_JPEG
dflet 0:50cedd586816 62
dflet 0:50cedd586816 63 //*****************************************************************************
dflet 0:50cedd586816 64 // Macros
dflet 0:50cedd586816 65 //*****************************************************************************
dflet 0:50cedd586816 66 #define USER_FILE_NAME "www/images/cc3200_camera_capture.jpg"
dflet 0:50cedd586816 67 #define TOTAL_DMA_ELEMENTS 64
dflet 0:50cedd586816 68 #define AP_SSID_LEN_MAX (33)
dflet 0:50cedd586816 69 #define ROLE_INVALID (-5)
dflet 0:50cedd586816 70 //*****************************************************************************
dflet 0:50cedd586816 71 // GLOBAL VARIABLES
dflet 0:50cedd586816 72 //*****************************************************************************
dflet 0:50cedd586816 73 unsigned int g_frame_size_in_bytes;
dflet 0:50cedd586816 74 unsigned int g_uiDeviceModeConfig = ROLE_AP; //default is AP mode
dflet 0:50cedd586816 75 extern volatile unsigned char g_CaptureImage;
dflet 0:50cedd586816 76 extern int g_uiIpObtained = 0;
dflet 0:50cedd586816 77 extern int g_uiSimplelinkRole = ROLE_INVALID;
dflet 0:50cedd586816 78 unsigned int g_uiIpAddress = 0;
dflet 0:50cedd586816 79 static unsigned int *p_buffer = NULL;
dflet 0:50cedd586816 80 static unsigned char g_dma_txn_done;
dflet 0:50cedd586816 81 volatile static unsigned char g_frame_end;
dflet 0:50cedd586816 82 static unsigned int g_total_dma_intrpts;
dflet 0:50cedd586816 83
dflet 0:50cedd586816 84 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 85 int PIXELS_IN_X_AXIS = 640;
dflet 0:50cedd586816 86 int PIXELS_IN_Y_AXIS = 480;
dflet 0:50cedd586816 87 int FRAME_SIZE_IN_BYTES = (640 * 480 * 2);
dflet 0:50cedd586816 88 #else
dflet 0:50cedd586816 89 int PIXELS_IN_X_AXIS = 240;
dflet 0:50cedd586816 90 int PIXELS_IN_Y_AXIS = 256;
dflet 0:50cedd586816 91 #endif
dflet 0:50cedd586816 92
dflet 0:50cedd586816 93 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 94 unsigned int g_header_length;
dflet 0:50cedd586816 95 #endif
dflet 0:50cedd586816 96
dflet 0:50cedd586816 97 struct ImageBuffer
dflet 0:50cedd586816 98 {
dflet 0:50cedd586816 99 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 100 char g_header[SMTP_BUF_LEN] /*= {'\0'}*/;
dflet 0:50cedd586816 101 #endif
dflet 0:50cedd586816 102 unsigned int g_image_buffer[NUM_OF_4B_CHUNKS];
dflet 0:50cedd586816 103 };
dflet 0:50cedd586816 104
dflet 0:50cedd586816 105 ImageBuffer g_image;
dflet 0:50cedd586816 106
dflet 0:50cedd586816 107 typedef enum pictureRequest{
dflet 0:50cedd586816 108 NO_PICTURE = 0x00,
dflet 0:50cedd586816 109 SINGLE_HIGH_RESOLUTION = 0x01,
dflet 0:50cedd586816 110 STREAM_LOW_RESOLUTION = 0x02
dflet 0:50cedd586816 111
dflet 0:50cedd586816 112 }e_pictureRequest;
dflet 0:50cedd586816 113
dflet 0:50cedd586816 114 typedef enum pictureFormat{
dflet 0:50cedd586816 115 RAW_10BIT = 0,
dflet 0:50cedd586816 116 ITU_R_BT601,
dflet 0:50cedd586816 117 YCbCr_4_2_2,
dflet 0:50cedd586816 118 YCbCr_4_2_0,
dflet 0:50cedd586816 119 RGB_565,
dflet 0:50cedd586816 120 RGB_555,
dflet 0:50cedd586816 121 RGB_444
dflet 0:50cedd586816 122
dflet 0:50cedd586816 123 }e_pictureFormat;
dflet 0:50cedd586816 124
dflet 0:50cedd586816 125 typedef enum pictureResolution{
dflet 0:50cedd586816 126 QVGA = 0,
dflet 0:50cedd586816 127 VGA,
dflet 0:50cedd586816 128 SVGA,
dflet 0:50cedd586816 129 XGA,
dflet 0:50cedd586816 130 uXGA
dflet 0:50cedd586816 131
dflet 0:50cedd586816 132 }e_pictureResolution;
dflet 0:50cedd586816 133
dflet 0:50cedd586816 134
dflet 0:50cedd586816 135 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 136 #define FORMAT_YCBCR422 0
dflet 0:50cedd586816 137 #define FORMAT_YCBCR420 1
dflet 0:50cedd586816 138 #define FORMAT_MONOCHROME 2
dflet 0:50cedd586816 139
dflet 0:50cedd586816 140 unsigned char JPEG_StdQuantTblY[64] =
dflet 0:50cedd586816 141 {
dflet 0:50cedd586816 142 16, 11, 10, 16, 24, 40, 51, 61,
dflet 0:50cedd586816 143 12, 12, 14, 19, 26, 58, 60, 55,
dflet 0:50cedd586816 144 14, 13, 16, 24, 40, 57, 69, 56,
dflet 0:50cedd586816 145 14, 17, 22, 29, 51, 87, 80, 62,
dflet 0:50cedd586816 146 18, 22, 37, 56, 68, 109, 103, 77,
dflet 0:50cedd586816 147 24, 35, 55, 64, 81, 104, 113, 92,
dflet 0:50cedd586816 148 49, 64, 78, 87, 103, 121, 120, 101,
dflet 0:50cedd586816 149 72, 92, 95, 98, 112, 100, 103, 99
dflet 0:50cedd586816 150 };
dflet 0:50cedd586816 151
dflet 0:50cedd586816 152 unsigned char JPEG_StdQuantTblC[64] =
dflet 0:50cedd586816 153 {
dflet 0:50cedd586816 154 17, 18, 24, 47, 99, 99, 99, 99,
dflet 0:50cedd586816 155 18, 21, 26, 66, 99, 99, 99, 99,
dflet 0:50cedd586816 156 24, 26, 56, 99, 99, 99, 99, 99,
dflet 0:50cedd586816 157 47, 66, 99, 99, 99, 99, 99, 99,
dflet 0:50cedd586816 158 99, 99, 99, 99, 99, 99, 99, 99,
dflet 0:50cedd586816 159 99, 99, 99, 99, 99, 99, 99, 99,
dflet 0:50cedd586816 160 99, 99, 99, 99, 99, 99, 99, 99,
dflet 0:50cedd586816 161 99, 99, 99, 99, 99, 99, 99, 99
dflet 0:50cedd586816 162 };
dflet 0:50cedd586816 163 //
dflet 0:50cedd586816 164 // This table is used for regular-position to zigzagged-position lookup
dflet 0:50cedd586816 165 // This is Figure A.6 from the ISO/IEC 10918-1 1993 specification
dflet 0:50cedd586816 166 //
dflet 0:50cedd586816 167 static unsigned char zigzag[64] =
dflet 0:50cedd586816 168 {
dflet 0:50cedd586816 169 0, 1, 5, 6,14,15,27,28,
dflet 0:50cedd586816 170 2, 4, 7,13,16,26,29,42,
dflet 0:50cedd586816 171 3, 8,12,17,25,30,41,43,
dflet 0:50cedd586816 172 9,11,18,24,31,40,44,53,
dflet 0:50cedd586816 173 10,19,23,32,39,45,52,54,
dflet 0:50cedd586816 174 20,22,33,38,46,51,55,60,
dflet 0:50cedd586816 175 21,34,37,47,50,56,59,61,
dflet 0:50cedd586816 176 35,36,48,49,57,58,62,63
dflet 0:50cedd586816 177 };
dflet 0:50cedd586816 178
dflet 0:50cedd586816 179 unsigned int JPEG_StdHuffmanTbl[384] =
dflet 0:50cedd586816 180 {
dflet 0:50cedd586816 181 0x100, 0x101, 0x204, 0x30b, 0x41a, 0x678, 0x7f8, 0x9f6,
dflet 0:50cedd586816 182 0xf82, 0xf83, 0x30c, 0x41b, 0x679, 0x8f6, 0xaf6, 0xf84,
dflet 0:50cedd586816 183 0xf85, 0xf86, 0xf87, 0xf88, 0x41c, 0x7f9, 0x9f7, 0xbf4,
dflet 0:50cedd586816 184 0xf89, 0xf8a, 0xf8b, 0xf8c, 0xf8d, 0xf8e, 0x53a, 0x8f7,
dflet 0:50cedd586816 185 0xbf5, 0xf8f, 0xf90, 0xf91, 0xf92, 0xf93, 0xf94, 0xf95,
dflet 0:50cedd586816 186 0x53b, 0x9f8, 0xf96, 0xf97, 0xf98, 0xf99, 0xf9a, 0xf9b,
dflet 0:50cedd586816 187 0xf9c, 0xf9d, 0x67a, 0xaf7, 0xf9e, 0xf9f, 0xfa0, 0xfa1,
dflet 0:50cedd586816 188 0xfa2, 0xfa3, 0xfa4, 0xfa5, 0x67b, 0xbf6, 0xfa6, 0xfa7,
dflet 0:50cedd586816 189 0xfa8, 0xfa9, 0xfaa, 0xfab, 0xfac, 0xfad, 0x7fa, 0xbf7,
dflet 0:50cedd586816 190 0xfae, 0xfaf, 0xfb0, 0xfb1, 0xfb2, 0xfb3, 0xfb4, 0xfb5,
dflet 0:50cedd586816 191 0x8f8, 0xec0, 0xfb6, 0xfb7, 0xfb8, 0xfb9, 0xfba, 0xfbb,
dflet 0:50cedd586816 192 0xfbc, 0xfbd, 0x8f9, 0xfbe, 0xfbf, 0xfc0, 0xfc1, 0xfc2,
dflet 0:50cedd586816 193 0xfc3, 0xfc4, 0xfc5, 0xfc6, 0x8fa, 0xfc7, 0xfc8, 0xfc9,
dflet 0:50cedd586816 194 0xfca, 0xfcb, 0xfcc, 0xfcd, 0xfce, 0xfcf, 0x9f9, 0xfd0,
dflet 0:50cedd586816 195 0xfd1, 0xfd2, 0xfd3, 0xfd4, 0xfd5, 0xfd6, 0xfd7, 0xfd8,
dflet 0:50cedd586816 196 0x9fa, 0xfd9, 0xfda, 0xfdb, 0xfdc, 0xfdd, 0xfde, 0xfdf,
dflet 0:50cedd586816 197 0xfe0, 0xfe1, 0xaf8, 0xfe2, 0xfe3, 0xfe4, 0xfe5, 0xfe6,
dflet 0:50cedd586816 198 0xfe7, 0xfe8, 0xfe9, 0xfea, 0xfeb, 0xfec, 0xfed, 0xfee,
dflet 0:50cedd586816 199 0xfef, 0xff0, 0xff1, 0xff2, 0xff3, 0xff4, 0xff5, 0xff6,
dflet 0:50cedd586816 200 0xff7, 0xff8, 0xff9, 0xffa, 0xffb, 0xffc, 0xffd, 0xffe,
dflet 0:50cedd586816 201 0x30a, 0xaf9, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
dflet 0:50cedd586816 202 0xfd0, 0xfd1, 0xfd2, 0xfd3, 0xfd4, 0xfd5, 0xfd6, 0xfd7,
dflet 0:50cedd586816 203 0x101, 0x204, 0x30a, 0x418, 0x419, 0x538, 0x678, 0x8f4,
dflet 0:50cedd586816 204 0x9f6, 0xbf4, 0x30b, 0x539, 0x7f6, 0x8f5, 0xaf6, 0xbf5,
dflet 0:50cedd586816 205 0xf88, 0xf89, 0xf8a, 0xf8b, 0x41a, 0x7f7, 0x9f7, 0xbf6,
dflet 0:50cedd586816 206 0xec2, 0xf8c, 0xf8d, 0xf8e, 0xf8f, 0xf90, 0x41b, 0x7f8,
dflet 0:50cedd586816 207 0x9f8, 0xbf7, 0xf91, 0xf92, 0xf93, 0xf94, 0xf95, 0xf96,
dflet 0:50cedd586816 208 0x53a, 0x8f6, 0xf97, 0xf98, 0xf99, 0xf9a, 0xf9b, 0xf9c,
dflet 0:50cedd586816 209 0xf9d, 0xf9e, 0x53b, 0x9f9, 0xf9f, 0xfa0, 0xfa1, 0xfa2,
dflet 0:50cedd586816 210 0xfa3, 0xfa4, 0xfa5, 0xfa6, 0x679, 0xaf7, 0xfa7, 0xfa8,
dflet 0:50cedd586816 211 0xfa9, 0xfaa, 0xfab, 0xfac, 0xfad, 0xfae, 0x67a, 0xaf8,
dflet 0:50cedd586816 212 0xfaf, 0xfb0, 0xfb1, 0xfb2, 0xfb3, 0xfb4, 0xfb5, 0xfb6,
dflet 0:50cedd586816 213 0x7f9, 0xfb7, 0xfb8, 0xfb9, 0xfba, 0xfbb, 0xfbc, 0xfbd,
dflet 0:50cedd586816 214 0xfbe, 0xfbf, 0x8f7, 0xfc0, 0xfc1, 0xfc2, 0xfc3, 0xfc4,
dflet 0:50cedd586816 215 0xfc5, 0xfc6, 0xfc7, 0xfc8, 0x8f8, 0xfc9, 0xfca, 0xfcb,
dflet 0:50cedd586816 216 0xfcc, 0xfcd, 0xfce, 0xfcf, 0xfd0, 0xfd1, 0x8f9, 0xfd2,
dflet 0:50cedd586816 217 0xfd3, 0xfd4, 0xfd5, 0xfd6, 0xfd7, 0xfd8, 0xfd9, 0xfda,
dflet 0:50cedd586816 218 0x8fa, 0xfdb, 0xfdc, 0xfdd, 0xfde, 0xfdf, 0xfe0, 0xfe1,
dflet 0:50cedd586816 219 0xfe2, 0xfe3, 0xaf9, 0xfe4, 0xfe5, 0xfe6, 0xfe7, 0xfe8,
dflet 0:50cedd586816 220 0xfe9, 0xfea, 0xfeb, 0xfec, 0xde0, 0xfed, 0xfee, 0xfef,
dflet 0:50cedd586816 221 0xff0, 0xff1, 0xff2, 0xff3, 0xff4, 0xff5, 0xec3, 0xff6,
dflet 0:50cedd586816 222 0xff7, 0xff8, 0xff9, 0xffa, 0xffb, 0xffc, 0xffd, 0xffe,
dflet 0:50cedd586816 223 0x100, 0x9fa, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
dflet 0:50cedd586816 224 0xfd0, 0xfd1, 0xfd2, 0xfd3, 0xfd4, 0xfd5, 0xfd6, 0xfd7,
dflet 0:50cedd586816 225 0x100, 0x202, 0x203, 0x204, 0x205, 0x206, 0x30e, 0x41e,
dflet 0:50cedd586816 226 0x53e, 0x67e, 0x7fe, 0x8fe, 0xfff, 0xfff, 0xfff, 0xfff,
dflet 0:50cedd586816 227 0x100, 0x101, 0x102, 0x206, 0x30e, 0x41e, 0x53e, 0x67e,
dflet 0:50cedd586816 228 0x7fe, 0x8fe, 0x9fe, 0xafe, 0xfff, 0xfff, 0xfff, 0xfff
dflet 0:50cedd586816 229 };
dflet 0:50cedd586816 230 #endif
dflet 0:50cedd586816 231 /****************************************************************************/
dflet 0:50cedd586816 232 /* LOCAL FUNCTION PROTOTYPES */
dflet 0:50cedd586816 233 /****************************************************************************/
dflet 0:50cedd586816 234 static void CamControllerInit();
dflet 0:50cedd586816 235 static void CameraIntHandler();
dflet 0:50cedd586816 236 static unsigned short CaptureImage(char **WriteBuffer);
dflet 0:50cedd586816 237 static void DMAConfig();
dflet 0:50cedd586816 238
dflet 0:50cedd586816 239 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 240 static int CreateJpegHeader(char *header, int width, int height,
dflet 0:50cedd586816 241 int format, int restart_int, int qscale);
dflet 0:50cedd586816 242 static int DefineRestartIntervalMarker(char *pbuf, int ri);
dflet 0:50cedd586816 243 static int DefineHuffmanTableMarkerAC(char *pbuf, unsigned int *htable, int class_id);
dflet 0:50cedd586816 244 static int DefineHuffmanTableMarkerDC(char *pbuf, unsigned int *htable, int class_id);
dflet 0:50cedd586816 245 static int DefineQuantizationTableMarker (unsigned char *pbuf, int qscale, int format);
dflet 0:50cedd586816 246 static int ScanHeaderMarker(char *pbuf, int format);
dflet 0:50cedd586816 247 static int FrameHeaderMarker(char *pbuf, int width, int height, int format);
dflet 0:50cedd586816 248 static int JfifApp0Marker(char *pbuf);
dflet 0:50cedd586816 249 #endif
dflet 0:50cedd586816 250
dflet 0:50cedd586816 251 //*****************************************************************************
dflet 0:50cedd586816 252 //
dflet 0:50cedd586816 253 //! Start Camera
dflet 0:50cedd586816 254 //! 1. Establishes connection w/ AP//
dflet 0:50cedd586816 255 //! 2. Initializes the camera sub-components//! GPIO Enable & Configuration
dflet 0:50cedd586816 256 //! 3. Listens and processes the image capture requests from user-applications
dflet 0:50cedd586816 257 //!
dflet 0:50cedd586816 258 //! \param[out] WriteBuffer - Pointer to the Frame Buffer
dflet 0:50cedd586816 259 //! \return None
dflet 0:50cedd586816 260 //
dflet 0:50cedd586816 261 //*****************************************************************************
dflet 0:50cedd586816 262
dflet 0:50cedd586816 263 unsigned short StartCamera(char **WriteBuffer)
dflet 0:50cedd586816 264 {
dflet 0:50cedd586816 265 Uart_Write((uint8_t*)"StartCamera \n\r");
dflet 0:50cedd586816 266 unsigned short Writelength;
dflet 0:50cedd586816 267 //
dflet 0:50cedd586816 268 // Waits in the below loop till Capture button is pressed
dflet 0:50cedd586816 269 //
dflet 0:50cedd586816 270 Writelength = CaptureImage(WriteBuffer);
dflet 0:50cedd586816 271
dflet 0:50cedd586816 272 return(Writelength);
dflet 0:50cedd586816 273
dflet 0:50cedd586816 274 }
dflet 0:50cedd586816 275 //*****************************************************************************
dflet 0:50cedd586816 276 //
dflet 0:50cedd586816 277 //! InitCameraComponents
dflet 0:50cedd586816 278 //! PinMux, Camera Initialization and Configuration
dflet 0:50cedd586816 279 //!
dflet 0:50cedd586816 280 //! \param[in] width - X-Axis
dflet 0:50cedd586816 281 //! \param[in] width - Y-Axis
dflet 0:50cedd586816 282 //! \return None
dflet 0:50cedd586816 283 //
dflet 0:50cedd586816 284 //*****************************************************************************
dflet 0:50cedd586816 285
dflet 0:50cedd586816 286 void InitCameraComponents(int width, int height)
dflet 0:50cedd586816 287 {
dflet 0:50cedd586816 288 Uart_Write((uint8_t*)"InitCameraComponents \n\r");
dflet 0:50cedd586816 289 //
dflet 0:50cedd586816 290 // Initialize I2C Interface
dflet 0:50cedd586816 291 //
dflet 0:50cedd586816 292 I2CInit();
dflet 0:50cedd586816 293 //
dflet 0:50cedd586816 294 // Initialize camera controller
dflet 0:50cedd586816 295 //
dflet 0:50cedd586816 296 CamControllerInit();
dflet 0:50cedd586816 297 //
dflet 0:50cedd586816 298 // Initialize camera sensor
dflet 0:50cedd586816 299 //
dflet 0:50cedd586816 300 CameraSensorInit();
dflet 0:50cedd586816 301
dflet 0:50cedd586816 302 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 303 //
dflet 0:50cedd586816 304 // Configure Sensor in Capture Mode
dflet 0:50cedd586816 305 //
dflet 0:50cedd586816 306 PIXELS_IN_X_AXIS = width;
dflet 0:50cedd586816 307 PIXELS_IN_Y_AXIS = height;
dflet 0:50cedd586816 308 FRAME_SIZE_IN_BYTES = PIXELS_IN_X_AXIS * PIXELS_IN_Y_AXIS * BYTES_PER_PIXEL;
dflet 0:50cedd586816 309
dflet 0:50cedd586816 310 StartSensorInJpegMode(width, height);
dflet 0:50cedd586816 311
dflet 0:50cedd586816 312 #endif
dflet 0:50cedd586816 313 }
dflet 0:50cedd586816 314
dflet 0:50cedd586816 315 //*****************************************************************************
dflet 0:50cedd586816 316 //
dflet 0:50cedd586816 317 //! Set resolution of camera
dflet 0:50cedd586816 318 //!
dflet 0:50cedd586816 319 //! \param[in] width - X Axis
dflet 0:50cedd586816 320 //! \param[in] height - Y Axis
dflet 0:50cedd586816 321 //! \return 0 on success else -ve
dflet 0:50cedd586816 322 //
dflet 0:50cedd586816 323 //*****************************************************************************
dflet 0:50cedd586816 324
dflet 0:50cedd586816 325 int SetCameraResolution(int width, int height)
dflet 0:50cedd586816 326 {
dflet 0:50cedd586816 327 Uart_Write((uint8_t*)"SetCameraResolution \n\r");
dflet 0:50cedd586816 328 int lRetVal = 0;
dflet 0:50cedd586816 329
dflet 0:50cedd586816 330 PIXELS_IN_X_AXIS = width;
dflet 0:50cedd586816 331 PIXELS_IN_Y_AXIS = height;
dflet 0:50cedd586816 332 FRAME_SIZE_IN_BYTES = PIXELS_IN_X_AXIS * PIXELS_IN_Y_AXIS * BYTES_PER_PIXEL;
dflet 0:50cedd586816 333 lRetVal = CameraSensorResolution(width, height);
dflet 0:50cedd586816 334 return lRetVal;
dflet 0:50cedd586816 335 }
dflet 0:50cedd586816 336
dflet 0:50cedd586816 337 //*****************************************************************************
dflet 0:50cedd586816 338 //
dflet 0:50cedd586816 339 //! CaptureImage
dflet 0:50cedd586816 340 //! Configures DMA and starts the Capture. Post Capture writes to SFLASH
dflet 0:50cedd586816 341 //!
dflet 0:50cedd586816 342 //! \param None
dflet 0:50cedd586816 343 //! \return None
dflet 0:50cedd586816 344 //!
dflet 0:50cedd586816 345 //
dflet 0:50cedd586816 346 //*****************************************************************************
dflet 0:50cedd586816 347
dflet 0:50cedd586816 348 static unsigned short CaptureImage(char** WriteBuffer)
dflet 0:50cedd586816 349 {
dflet 0:50cedd586816 350 Uart_Write((uint8_t*)"CaptureImage \n\r");
dflet 1:1a80c1529aa3 351 DCMI_HandleTypeDef hdcmi;
dflet 1:1a80c1529aa3 352 DMA_HandleTypeDef hdma_dcmi;
dflet 2:b92db44a29b4 353 memset(g_image.g_image_buffer,0xF80F,sizeof(g_image.g_image_buffer));
dflet 2:b92db44a29b4 354 p_buffer = &(g_image.g_image_buffer[0]);
dflet 0:50cedd586816 355
dflet 0:50cedd586816 356 DMAConfig();
dflet 0:50cedd586816 357
dflet 0:50cedd586816 358 //
dflet 0:50cedd586816 359 // Perform Image Capture
dflet 0:50cedd586816 360 //
dflet 2:b92db44a29b4 361 Uart_Write((uint8_t*)"CaptureImage Start\n\r");
dflet 3:7643714ec664 362
dflet 3:7643714ec664 363 HAL_NVIC_EnableIRQ(DMA2_Stream1_IRQn);
dflet 3:7643714ec664 364 HAL_NVIC_EnableIRQ(DCMI_IRQn);
dflet 2:b92db44a29b4 365 HAL_DCMI_Start_DMA(&hdcmi, DCMI_MODE_SNAPSHOT, (uint32_t)p_buffer, sizeof(g_image.g_image_buffer));
dflet 2:b92db44a29b4 366
dflet 2:b92db44a29b4 367 /* Wait for frame */
dflet 2:b92db44a29b4 368 while ((DCMI->CR & DCMI_CR_CAPTURE) != 0) {
dflet 3:7643714ec664 369 GPIO_IF_LedToggle(MCU_RED_LED_GPIO);
dflet 2:b92db44a29b4 370 }
dflet 3:7643714ec664 371 HAL_NVIC_DisableIRQ(DCMI_IRQn);
dflet 3:7643714ec664 372 HAL_NVIC_DisableIRQ(DMA2_Stream1_IRQn);
dflet 2:b92db44a29b4 373 g_frame_end = 1;
dflet 2:b92db44a29b4 374
dflet 3:7643714ec664 375 Uart_Write((uint8_t*)"\n\rCaptureImage Complete\n\r");
dflet 2:b92db44a29b4 376 /* The frame is finished, but DMA still waiting
dflet 2:b92db44a29b4 377 for data because we set max frame size
dflet 2:b92db44a29b4 378 so we need to abort the DMA transfer here */
dflet 2:b92db44a29b4 379 HAL_DMA_Abort(&hdma_dcmi);//need this???
dflet 2:b92db44a29b4 380
dflet 2:b92db44a29b4 381 /* Read the number of data items transferred */
dflet 2:b92db44a29b4 382 uint16_t image_size = (FRAME_SIZE_IN_BYTES - hdma_dcmi.Instance->NDTR)*4;
dflet 0:50cedd586816 383
dflet 0:50cedd586816 384 //
dflet 0:50cedd586816 385 // Create JPEG Header
dflet 0:50cedd586816 386 //
dflet 0:50cedd586816 387 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 388 memset(g_image.g_header, '\0', sizeof(g_image.g_header));
dflet 0:50cedd586816 389 g_header_length = CreateJpegHeader((char *)&(g_image.g_header[0]), PIXELS_IN_X_AXIS,
dflet 0:50cedd586816 390 PIXELS_IN_Y_AXIS, 0, 0x0020, 9);
dflet 0:50cedd586816 391
dflet 0:50cedd586816 392 // This loop pushes the header to the end of the array so that the entire picture can be contiguous in memory
dflet 0:50cedd586816 393 unsigned short shift;
dflet 0:50cedd586816 394
dflet 0:50cedd586816 395 for(shift=1; shift <= g_header_length; shift++)
dflet 0:50cedd586816 396 {
dflet 0:50cedd586816 397 g_image.g_header[SMTP_BUF_LEN - shift] = g_image.g_header[g_header_length - shift];
dflet 0:50cedd586816 398
dflet 0:50cedd586816 399 }
dflet 0:50cedd586816 400 #endif
dflet 0:50cedd586816 401 *WriteBuffer = &(g_image.g_header[SMTP_BUF_LEN - g_header_length]);
dflet 0:50cedd586816 402
dflet 0:50cedd586816 403 return(g_header_length + g_frame_size_in_bytes);
dflet 0:50cedd586816 404 }
dflet 0:50cedd586816 405 //*****************************************************************************
dflet 0:50cedd586816 406 //
dflet 0:50cedd586816 407 //! DMA Config
dflet 0:50cedd586816 408 //! Initialize the DMA and Setup the DMA transfer
dflet 0:50cedd586816 409 //!
dflet 0:50cedd586816 410 //! \param None
dflet 0:50cedd586816 411 //! \return None
dflet 0:50cedd586816 412 //
dflet 0:50cedd586816 413 //*****************************************************************************
dflet 0:50cedd586816 414 static void DMAConfig()
dflet 0:50cedd586816 415 {
dflet 0:50cedd586816 416 Uart_Write((uint8_t*)"DMAConfig \n\r");
dflet 2:b92db44a29b4 417 // memset(g_image.g_image_buffer,0xF80F,sizeof(g_image.g_image_buffer));
dflet 2:b92db44a29b4 418 // p_buffer = &(g_image.g_image_buffer[0]);
dflet 0:50cedd586816 419 //
dflet 0:50cedd586816 420 // Initilalize DMA
dflet 0:50cedd586816 421 //
dflet 0:50cedd586816 422 // UDMAInit();
dflet 0:50cedd586816 423 //
dflet 0:50cedd586816 424 // Setup ping-pong transfer
dflet 0:50cedd586816 425 //
dflet 0:50cedd586816 426 // UDMASetupTransfer(UDMA_CH22_CAMERA,UDMA_MODE_PINGPONG,TOTAL_DMA_ELEMENTS,UDMA_SIZE_32,
dflet 0:50cedd586816 427 // UDMA_ARB_8,(void *)CAM_BUFFER_ADDR, UDMA_SRC_INC_32,
dflet 0:50cedd586816 428 // (void *)p_buffer, UDMA_DST_INC_32);
dflet 0:50cedd586816 429 //
dflet 0:50cedd586816 430 // Pong Buffer
dflet 0:50cedd586816 431 //
dflet 2:b92db44a29b4 432 // p_buffer += TOTAL_DMA_ELEMENTS;
dflet 0:50cedd586816 433 // UDMASetupTransfer(UDMA_CH22_CAMERA|UDMA_ALT_SELECT,UDMA_MODE_PINGPONG,TOTAL_DMA_ELEMENTS,
dflet 0:50cedd586816 434 // UDMA_SIZE_32, UDMA_ARB_8,(void *)CAM_BUFFER_ADDR,
dflet 0:50cedd586816 435 // UDMA_SRC_INC_32, (void *)p_buffer, UDMA_DST_INC_32);
dflet 0:50cedd586816 436 //
dflet 0:50cedd586816 437 // Ping Buffer
dflet 0:50cedd586816 438 //
dflet 2:b92db44a29b4 439 // p_buffer += TOTAL_DMA_ELEMENTS;
dflet 0:50cedd586816 440
dflet 0:50cedd586816 441 g_dma_txn_done = 0;
dflet 0:50cedd586816 442 g_frame_size_in_bytes = 0;
dflet 0:50cedd586816 443 g_frame_end = 0;
dflet 0:50cedd586816 444 g_total_dma_intrpts = 0;
dflet 0:50cedd586816 445
dflet 0:50cedd586816 446 //
dflet 0:50cedd586816 447 // Clear any pending interrupt
dflet 0:50cedd586816 448 //
dflet 0:50cedd586816 449 // CameraIntClear(CAMERA_BASE,CAM_INT_DMA);
dflet 0:50cedd586816 450
dflet 0:50cedd586816 451 //
dflet 0:50cedd586816 452 // DMA Interrupt unmask from apps config
dflet 0:50cedd586816 453 //
dflet 0:50cedd586816 454 // CameraIntEnable(CAMERA_BASE,CAM_INT_DMA);
dflet 0:50cedd586816 455 }
dflet 0:50cedd586816 456
dflet 0:50cedd586816 457 //*****************************************************************************
dflet 0:50cedd586816 458 //
dflet 0:50cedd586816 459 //! Camera Controller Initialisation
dflet 0:50cedd586816 460 //!
dflet 0:50cedd586816 461 //! \param None
dflet 0:50cedd586816 462 //! \return None
dflet 0:50cedd586816 463 //!
dflet 0:50cedd586816 464 //
dflet 0:50cedd586816 465 //*****************************************************************************
dflet 0:50cedd586816 466
dflet 0:50cedd586816 467 static void CamControllerInit()
dflet 0:50cedd586816 468 {
dflet 0:50cedd586816 469 Uart_Write((uint8_t*)"CamControllerInit \n\r");
dflet 0:50cedd586816 470 // DCMI_HandleTypeDef hdcmi;
dflet 0:50cedd586816 471 // MAP_PRCMPeripheralClkEnable(PRCM_CAMERA, PRCM_RUN_MODE_CLK);
dflet 0:50cedd586816 472 // MAP_PRCMPeripheralReset(PRCM_CAMERA);
dflet 0:50cedd586816 473
dflet 0:50cedd586816 474 #ifndef ENABLE_JPEG
dflet 0:50cedd586816 475 // Configure Camera clock
dflet 0:50cedd586816 476 // CamClkIn = ((240)/((1+1)+(1+1))) = 60 MHz
dflet 0:50cedd586816 477 // PRCMCameraFreqSet(4, 2);
dflet 0:50cedd586816 478 #else
dflet 0:50cedd586816 479 // PRCMCameraFreqSet(2,1);
dflet 0:50cedd586816 480 #endif
dflet 0:50cedd586816 481
dflet 0:50cedd586816 482 // MAP_CameraReset(CAMERA_BASE);
dflet 0:50cedd586816 483
dflet 0:50cedd586816 484 #ifndef ENABLE_JPEG
dflet 0:50cedd586816 485 // MAP_CameraParamsConfig(CAMERA_BASE, CAM_HS_POL_HI, CAM_VS_POL_HI,
dflet 0:50cedd586816 486 // CAM_ORDERCAM_SWAP|CAM_NOBT_SYNCHRO);
dflet 0:50cedd586816 487 #else
dflet 0:50cedd586816 488 // MAP_CameraParamsConfig(CAMERA_BASE, CAM_HS_POL_HI,CAM_VS_POL_HI,
dflet 0:50cedd586816 489 // CAM_NOBT_SYNCHRO|CAM_IF_SYNCHRO|CAM_BT_CORRECT_EN);
dflet 0:50cedd586816 490 #endif
dflet 0:50cedd586816 491
dflet 0:50cedd586816 492 // MAP_CameraIntRegister(CAMERA_BASE, CameraIntHandler);
dflet 0:50cedd586816 493
dflet 0:50cedd586816 494 #ifndef ENABLE_JPEG
dflet 0:50cedd586816 495 // MAP_CameraXClkConfig(CAMERA_BASE, 60000000,3750000);
dflet 0:50cedd586816 496 #else
dflet 0:50cedd586816 497 // MAP_CameraXClkConfig(CAMERA_BASE, 120000000,24000000);
dflet 0:50cedd586816 498 #endif
dflet 0:50cedd586816 499
dflet 0:50cedd586816 500 // MAP_CameraThresholdSet(CAMERA_BASE, 8);
dflet 0:50cedd586816 501 // MAP_CameraIntEnable(CAMERA_BASE, CAM_INT_FE);
dflet 0:50cedd586816 502 // MAP_CameraDMAEnable(CAMERA_BASE);
dflet 0:50cedd586816 503
dflet 0:50cedd586816 504 // hdcmi.Instance = DCMI;
dflet 0:50cedd586816 505 // hdcmi.Init.SynchroMode = DCMI_SYNCHRO_HARDWARE;
dflet 0:50cedd586816 506 // hdcmi.Init.PCKPolarity = DCMI_PCKPOLARITY_FALLING;
dflet 0:50cedd586816 507 // hdcmi.Init.VSPolarity = DCMI_VSPOLARITY_LOW;
dflet 0:50cedd586816 508 // hdcmi.Init.HSPolarity = DCMI_HSPOLARITY_LOW;
dflet 0:50cedd586816 509 // hdcmi.Init.CaptureRate = DCMI_CR_ALL_FRAME;
dflet 0:50cedd586816 510 // hdcmi.Init.ExtendedDataMode = DCMI_EXTEND_DATA_8B;
dflet 0:50cedd586816 511 //#ifdef ENABLE_JPEG
dflet 0:50cedd586816 512 // hdcmi.Init.JPEGMode = DCMI_JPEG_ENABLE;
dflet 0:50cedd586816 513 //#else
dflet 0:50cedd586816 514 // hdcmi.Init.JPEGMode = DCMI_JPEG_DISABLE;
dflet 0:50cedd586816 515 //#endif
dflet 0:50cedd586816 516 // HAL_DCMI_Init(&hdcmi);
dflet 0:50cedd586816 517
dflet 0:50cedd586816 518 /*
dflet 0:50cedd586816 519 hdcmi.Instance = DCMI;
dflet 0:50cedd586816 520 hdcmi.Init.SynchroMode = DCMI_SYNCHRO_EMBEDDED;
dflet 0:50cedd586816 521 hdcmi.Init.PCKPolarity = DCMI_PCKPOLARITY_FALLING;
dflet 0:50cedd586816 522 hdcmi.Init.ExtendedDataMode = DCMI_EXTEND_DATA_8B;
dflet 0:50cedd586816 523 hdcmi.Init.SyncroCode.FrameEndCode = 0;
dflet 0:50cedd586816 524 hdcmi.Init.SyncroCode.FrameStartCode = 0;
dflet 0:50cedd586816 525 hdcmi.Init.SyncroCode.LineStartCode = 0;
dflet 0:50cedd586816 526 hdcmi.Init.SyncroCode.LineEndCode = 0;
dflet 0:50cedd586816 527 HAL_DCMI_Init(&hdcmi);
dflet 0:50cedd586816 528 */
dflet 0:50cedd586816 529
dflet 0:50cedd586816 530 }
dflet 0:50cedd586816 531
dflet 0:50cedd586816 532
dflet 0:50cedd586816 533 //*****************************************************************************
dflet 0:50cedd586816 534 //
dflet 0:50cedd586816 535 //! Camera Interrupt Handler
dflet 0:50cedd586816 536 //!
dflet 0:50cedd586816 537 //! \param None
dflet 0:50cedd586816 538 //! \return None
dflet 0:50cedd586816 539 //
dflet 0:50cedd586816 540 //*****************************************************************************
dflet 0:50cedd586816 541 static void CameraIntHandler()
dflet 0:50cedd586816 542 {
dflet 0:50cedd586816 543 Uart_Write((uint8_t*)"CameraIntHandler \n\r");
dflet 1:1a80c1529aa3 544 DCMI_HandleTypeDef hdcmi;
dflet 1:1a80c1529aa3 545 DMA_HandleTypeDef hdma_dcmi;
dflet 0:50cedd586816 546 //MAP_CameraIntClear(CAMERA_BASE, CAM_INT_FE);
dflet 0:50cedd586816 547 // if(g_total_dma_intrpts > 1 && MAP_CameraIntStatus(CAMERA_BASE) & CAM_INT_FE)
dflet 0:50cedd586816 548 // {
dflet 0:50cedd586816 549 // MAP_CameraIntClear(CAMERA_BASE, CAM_INT_FE);
dflet 0:50cedd586816 550 // g_frame_end = 1;
dflet 0:50cedd586816 551 // MAP_CameraCaptureStop(CAMERA_BASE, true);
dflet 0:50cedd586816 552 // }
dflet 0:50cedd586816 553
dflet 0:50cedd586816 554 // if(CameraIntStatus(CAMERA_BASE)& CAM_INT_DMA)
dflet 0:50cedd586816 555 // {
dflet 0:50cedd586816 556 // Camera DMA Done clear
dflet 0:50cedd586816 557 // CameraIntClear(CAMERA_BASE,CAM_INT_DMA);
dflet 0:50cedd586816 558
dflet 0:50cedd586816 559 // g_total_dma_intrpts++;
dflet 0:50cedd586816 560
dflet 0:50cedd586816 561 // g_frame_size_in_bytes += (TOTAL_DMA_ELEMENTS*sizeof(unsigned long));
dflet 0:50cedd586816 562 // if(g_frame_size_in_bytes < FRAME_SIZE_IN_BYTES && g_frame_size_in_bytes < IMAGE_BUF_SIZE)
dflet 0:50cedd586816 563 // {
dflet 0:50cedd586816 564 // if(g_dma_txn_done == 0)
dflet 0:50cedd586816 565 // {
dflet 0:50cedd586816 566 // UDMASetupTransfer(UDMA_CH22_CAMERA,UDMA_MODE_PINGPONG,TOTAL_DMA_ELEMENTS,UDMA_SIZE_32,
dflet 0:50cedd586816 567 // UDMA_ARB_8,(void *)CAM_BUFFER_ADDR, UDMA_SRC_INC_32,
dflet 0:50cedd586816 568 // (void *)p_buffer, UDMA_DST_INC_32);
dflet 0:50cedd586816 569 // p_buffer += TOTAL_DMA_ELEMENTS;
dflet 0:50cedd586816 570 // g_dma_txn_done = 1;
dflet 0:50cedd586816 571 // }
dflet 0:50cedd586816 572 // else
dflet 0:50cedd586816 573 // {
dflet 0:50cedd586816 574 // UDMASetupTransfer(UDMA_CH22_CAMERA|UDMA_ALT_SELECT,UDMA_MODE_PINGPONG,TOTAL_DMA_ELEMENTS,
dflet 0:50cedd586816 575 // UDMA_SIZE_32, UDMA_ARB_8,(void *)CAM_BUFFER_ADDR,
dflet 0:50cedd586816 576 // UDMA_SRC_INC_32, (void *)p_buffer, UDMA_DST_INC_32);
dflet 0:50cedd586816 577 // p_buffer += TOTAL_DMA_ELEMENTS;
dflet 0:50cedd586816 578 // g_dma_txn_done = 0;
dflet 0:50cedd586816 579 // }
dflet 0:50cedd586816 580 // }
dflet 0:50cedd586816 581 // else
dflet 0:50cedd586816 582 // {
dflet 0:50cedd586816 583 // Disable DMA
dflet 0:50cedd586816 584 // wait_us(25);
dflet 0:50cedd586816 585 // MAP_UtilsDelay(20000);
dflet 0:50cedd586816 586 // MAP_uDMAChannelDisable(UDMA_CH22_CAMERA);
dflet 0:50cedd586816 587 // CameraIntDisable(CAMERA_BASE,CAM_INT_DMA);
dflet 0:50cedd586816 588 // g_frame_end = 1;
dflet 0:50cedd586816 589 // }
dflet 0:50cedd586816 590 // }
dflet 0:50cedd586816 591 /* Enable DMA2 stream 1 and DCMI interface then start image capture */
dflet 0:50cedd586816 592 // DMA_Cmd(DMA2_Stream1, ENABLE);
dflet 0:50cedd586816 593 // DCMI_Cmd(ENABLE);
dflet 0:50cedd586816 594
dflet 0:50cedd586816 595 /* Insert 100ms delay: wait 100ms */
dflet 0:50cedd586816 596 // wait_ms(100);
dflet 0:50cedd586816 597
dflet 1:1a80c1529aa3 598 // DCMI_CaptureCmd(ENABLE);
dflet 1:1a80c1529aa3 599 //HAL_DCMI_Start_DMA(hdcmi, DCMI_MODE_SNAPSHOT, WriteBuffer, Length)
dflet 0:50cedd586816 600 }
dflet 0:50cedd586816 601
dflet 0:50cedd586816 602 //*****************************************************************************
dflet 0:50cedd586816 603 //
dflet 0:50cedd586816 604 //! JfifApp0Marker
dflet 0:50cedd586816 605 //!
dflet 0:50cedd586816 606 //! \param Pointer to the output buffer
dflet 0:50cedd586816 607 //! \return Length of the Marker
dflet 0:50cedd586816 608 //
dflet 0:50cedd586816 609 //*****************************************************************************
dflet 0:50cedd586816 610
dflet 0:50cedd586816 611 #ifdef ENABLE_JPEG
dflet 0:50cedd586816 612 static int JfifApp0Marker(char *pbuf)
dflet 0:50cedd586816 613 {
dflet 0:50cedd586816 614 *pbuf++= 0xFF; // APP0 marker
dflet 0:50cedd586816 615 *pbuf++= 0xE0;
dflet 0:50cedd586816 616 *pbuf++= 0x00; // length
dflet 0:50cedd586816 617 *pbuf++= 0x10;
dflet 0:50cedd586816 618 *pbuf++= 0x4A; // JFIF identifier
dflet 0:50cedd586816 619 *pbuf++= 0x46;
dflet 0:50cedd586816 620 *pbuf++= 0x49;
dflet 0:50cedd586816 621 *pbuf++= 0x46;
dflet 0:50cedd586816 622 *pbuf++= 0x00;
dflet 0:50cedd586816 623 *pbuf++= 0x01; // version
dflet 0:50cedd586816 624 *pbuf++= 0x02;
dflet 0:50cedd586816 625 *pbuf++= 0x00; // units
dflet 0:50cedd586816 626 *pbuf++= 0x00; // X density
dflet 0:50cedd586816 627 *pbuf++= 0x01;
dflet 0:50cedd586816 628 *pbuf++= 0x00; // Y density
dflet 0:50cedd586816 629 *pbuf++= 0x01;
dflet 0:50cedd586816 630 *pbuf++= 0x00; // X thumbnail
dflet 0:50cedd586816 631 *pbuf++= 0x00; // Y thumbnail
dflet 0:50cedd586816 632 return 18;
dflet 0:50cedd586816 633 }
dflet 0:50cedd586816 634
dflet 0:50cedd586816 635
dflet 0:50cedd586816 636 //*****************************************************************************
dflet 0:50cedd586816 637 //
dflet 0:50cedd586816 638 //! FrameHeaderMarker
dflet 0:50cedd586816 639 //!
dflet 0:50cedd586816 640 //! \param1 pointer to the output buffer
dflet 0:50cedd586816 641 //! \param2 width
dflet 0:50cedd586816 642 //! \param3 height
dflet 0:50cedd586816 643 //! \param4 format
dflet 0:50cedd586816 644 //!
dflet 0:50cedd586816 645 //! \return Length of the header marker
dflet 0:50cedd586816 646 //
dflet 0:50cedd586816 647 //*****************************************************************************
dflet 0:50cedd586816 648 static int FrameHeaderMarker(char *pbuf, int width, int height, int format)
dflet 0:50cedd586816 649 {
dflet 0:50cedd586816 650 int length;
dflet 0:50cedd586816 651 if (format == FORMAT_MONOCHROME)
dflet 0:50cedd586816 652 length = 11;
dflet 0:50cedd586816 653 else
dflet 0:50cedd586816 654 length = 17;
dflet 0:50cedd586816 655
dflet 0:50cedd586816 656 *pbuf++= 0xFF; // start of frame: baseline DCT
dflet 0:50cedd586816 657 *pbuf++= 0xC0;
dflet 0:50cedd586816 658 *pbuf++= length>>8; // length field
dflet 0:50cedd586816 659 *pbuf++= length&0xFF;
dflet 0:50cedd586816 660 *pbuf++= 0x08; // sample precision
dflet 0:50cedd586816 661 *pbuf++= height>>8; // number of lines
dflet 0:50cedd586816 662 *pbuf++= height&0xFF;
dflet 0:50cedd586816 663 *pbuf++= width>>8; // number of samples per line
dflet 0:50cedd586816 664 *pbuf++= width&0xFF;
dflet 0:50cedd586816 665
dflet 0:50cedd586816 666 if (format == FORMAT_MONOCHROME) // monochrome
dflet 0:50cedd586816 667 {
dflet 0:50cedd586816 668 *pbuf++= 0x01; // number of image components in frame
dflet 0:50cedd586816 669 *pbuf++= 0x00; // component identifier: Y
dflet 0:50cedd586816 670 *pbuf++= 0x11; // horizontal | vertical sampling factor: Y
dflet 0:50cedd586816 671 *pbuf++= 0x00; // quantization table selector: Y
dflet 0:50cedd586816 672 }
dflet 0:50cedd586816 673 else if (format == FORMAT_YCBCR422) // YCbCr422
dflet 0:50cedd586816 674 {
dflet 0:50cedd586816 675 *pbuf++= 0x03; // number of image components in frame
dflet 0:50cedd586816 676 *pbuf++= 0x00; // component identifier: Y
dflet 0:50cedd586816 677 *pbuf++= 0x21; // horizontal | vertical sampling factor: Y
dflet 0:50cedd586816 678 *pbuf++= 0x00; // quantization table selector: Y
dflet 0:50cedd586816 679 *pbuf++= 0x01; // component identifier: Cb
dflet 0:50cedd586816 680 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cb
dflet 0:50cedd586816 681 *pbuf++= 0x01; // quantization table selector: Cb
dflet 0:50cedd586816 682 *pbuf++= 0x02; // component identifier: Cr
dflet 0:50cedd586816 683 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cr
dflet 0:50cedd586816 684 *pbuf++= 0x01; // quantization table selector: Cr
dflet 0:50cedd586816 685 }
dflet 0:50cedd586816 686 else // YCbCr420
dflet 0:50cedd586816 687 {
dflet 0:50cedd586816 688 *pbuf++= 0x03; // number of image components in frame
dflet 0:50cedd586816 689 *pbuf++= 0x00; // component identifier: Y
dflet 0:50cedd586816 690 *pbuf++= 0x22; // horizontal | vertical sampling factor: Y
dflet 0:50cedd586816 691 *pbuf++= 0x00; // quantization table selector: Y
dflet 0:50cedd586816 692 *pbuf++= 0x01; // component identifier: Cb
dflet 0:50cedd586816 693 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cb
dflet 0:50cedd586816 694 *pbuf++= 0x01; // quantization table selector: Cb
dflet 0:50cedd586816 695 *pbuf++= 0x02; // component identifier: Cr
dflet 0:50cedd586816 696 *pbuf++= 0x11; // horizontal | vertical sampling factor: Cr
dflet 0:50cedd586816 697 *pbuf++= 0x01; // quantization table selector: Cr
dflet 0:50cedd586816 698 }
dflet 0:50cedd586816 699
dflet 0:50cedd586816 700 return (length+2);
dflet 0:50cedd586816 701 }
dflet 0:50cedd586816 702
dflet 0:50cedd586816 703
dflet 0:50cedd586816 704 //*****************************************************************************
dflet 0:50cedd586816 705 //
dflet 0:50cedd586816 706 //! ScanHeaderMarker
dflet 0:50cedd586816 707 //!
dflet 0:50cedd586816 708 //! \param1 pointer to output buffer
dflet 0:50cedd586816 709 //! \param2 Format
dflet 0:50cedd586816 710 //!
dflet 0:50cedd586816 711 //! \return Length
dflet 0:50cedd586816 712 //
dflet 0:50cedd586816 713 //*****************************************************************************
dflet 0:50cedd586816 714 static int ScanHeaderMarker(char *pbuf, int format)
dflet 0:50cedd586816 715 {
dflet 0:50cedd586816 716 int length;
dflet 0:50cedd586816 717 if (format == FORMAT_MONOCHROME)
dflet 0:50cedd586816 718 length = 8;
dflet 0:50cedd586816 719 else
dflet 0:50cedd586816 720 length = 12;
dflet 0:50cedd586816 721
dflet 0:50cedd586816 722 *pbuf++= 0xFF; // start of scan
dflet 0:50cedd586816 723 *pbuf++= 0xDA;
dflet 0:50cedd586816 724 *pbuf++= length>>8; // length field
dflet 0:50cedd586816 725 *pbuf++= length&0xFF;
dflet 0:50cedd586816 726 if (format == FORMAT_MONOCHROME)// monochrome
dflet 0:50cedd586816 727 {
dflet 0:50cedd586816 728 *pbuf++= 0x01; // number of image components in scan
dflet 0:50cedd586816 729 *pbuf++= 0x00; // scan component selector: Y
dflet 0:50cedd586816 730 *pbuf++= 0x00; // DC | AC huffman table selector: Y
dflet 0:50cedd586816 731 }
dflet 0:50cedd586816 732 else // YCbCr
dflet 0:50cedd586816 733 {
dflet 0:50cedd586816 734 *pbuf++= 0x03; // number of image components in scan
dflet 0:50cedd586816 735 *pbuf++= 0x00; // scan component selector: Y
dflet 0:50cedd586816 736 *pbuf++= 0x00; // DC | AC huffman table selector: Y
dflet 0:50cedd586816 737 *pbuf++= 0x01; // scan component selector: Cb
dflet 0:50cedd586816 738 *pbuf++= 0x11; // DC | AC huffman table selector: Cb
dflet 0:50cedd586816 739 *pbuf++= 0x02; // scan component selector: Cr
dflet 0:50cedd586816 740 *pbuf++= 0x11; // DC | AC huffman table selector: Cr
dflet 0:50cedd586816 741 }
dflet 0:50cedd586816 742
dflet 0:50cedd586816 743 *pbuf++= 0x00; // Ss: start of predictor selector
dflet 0:50cedd586816 744 *pbuf++= 0x3F; // Se: end of spectral selector
dflet 0:50cedd586816 745 *pbuf++= 0x00; // Ah | Al: successive approximation bit position
dflet 0:50cedd586816 746
dflet 0:50cedd586816 747 return (length+2);
dflet 0:50cedd586816 748 }
dflet 0:50cedd586816 749
dflet 0:50cedd586816 750
dflet 0:50cedd586816 751 //*****************************************************************************
dflet 0:50cedd586816 752 //
dflet 0:50cedd586816 753 //! DefineQuantizationTableMarker
dflet 0:50cedd586816 754 //! Calculate and write the quantisation tables
dflet 0:50cedd586816 755 //! qscale is the customised scaling factor - see MT9D131 developer guide page 78
dflet 0:50cedd586816 756 //!
dflet 0:50cedd586816 757 //! \param1 pointer to the output buffer
dflet 0:50cedd586816 758 //! \param2 Quantization Scale
dflet 0:50cedd586816 759 //! \param3 Format
dflet 0:50cedd586816 760 //!
dflet 0:50cedd586816 761 //! \return Length of the Marker
dflet 0:50cedd586816 762 //
dflet 0:50cedd586816 763 //*****************************************************************************
dflet 0:50cedd586816 764 static int DefineQuantizationTableMarker (unsigned char *pbuf, int qscale, int format)
dflet 0:50cedd586816 765 {
dflet 0:50cedd586816 766 int i, length, temp;
dflet 0:50cedd586816 767 unsigned char newtbl[64]; // temporary array to store scaled zigzagged quant entries
dflet 0:50cedd586816 768
dflet 0:50cedd586816 769 if (format == FORMAT_MONOCHROME) // monochrome
dflet 0:50cedd586816 770 length = 67;
dflet 0:50cedd586816 771 else
dflet 0:50cedd586816 772 length = 132;
dflet 0:50cedd586816 773
dflet 0:50cedd586816 774 *pbuf++ = 0xFF; // define quantization table marker
dflet 0:50cedd586816 775 *pbuf++ = 0xDB;
dflet 0:50cedd586816 776 *pbuf++ = length>>8; // length field
dflet 0:50cedd586816 777 *pbuf++ = length&0xFF;
dflet 0:50cedd586816 778 *pbuf++ = 0; // quantization table precision | identifier for luminance
dflet 0:50cedd586816 779
dflet 0:50cedd586816 780 // calculate scaled zigzagged luminance quantisation table entries
dflet 0:50cedd586816 781 for (i=0; i<64; i++) {
dflet 0:50cedd586816 782 temp = (JPEG_StdQuantTblY[i] * qscale + 16) / 32;
dflet 0:50cedd586816 783 // limit the values to the valid range
dflet 0:50cedd586816 784 if (temp <= 0)
dflet 0:50cedd586816 785 temp = 1;
dflet 0:50cedd586816 786 if (temp > 255)
dflet 0:50cedd586816 787 temp = 255;
dflet 0:50cedd586816 788 newtbl[zigzag[i]] = (unsigned char) temp;
dflet 0:50cedd586816 789 }
dflet 0:50cedd586816 790
dflet 0:50cedd586816 791 // write the resulting luminance quant table to the output buffer
dflet 0:50cedd586816 792 for (i=0; i<64; i++)
dflet 0:50cedd586816 793 *pbuf++ = newtbl[i];
dflet 0:50cedd586816 794
dflet 0:50cedd586816 795 // if format is monochrome we're finished, otherwise continue on, to do chrominance quant table
dflet 0:50cedd586816 796 if (format == FORMAT_MONOCHROME)
dflet 0:50cedd586816 797 return (length+2);
dflet 0:50cedd586816 798
dflet 0:50cedd586816 799 *pbuf++ = 1; // quantization table precision | identifier for chrominance
dflet 0:50cedd586816 800
dflet 0:50cedd586816 801 // calculate scaled zigzagged chrominance quantisation table entries
dflet 0:50cedd586816 802 for (i=0; i<64; i++) {
dflet 0:50cedd586816 803 temp = (JPEG_StdQuantTblC[i] * qscale + 16) / 32;
dflet 0:50cedd586816 804 // limit the values to the valid range
dflet 0:50cedd586816 805 if (temp <= 0)
dflet 0:50cedd586816 806 temp = 1;
dflet 0:50cedd586816 807 if (temp > 255)
dflet 0:50cedd586816 808 temp = 255;
dflet 0:50cedd586816 809 newtbl[zigzag[i]] = (unsigned char) temp;
dflet 0:50cedd586816 810 }
dflet 0:50cedd586816 811
dflet 0:50cedd586816 812 // write the resulting chrominance quant table to the output buffer
dflet 0:50cedd586816 813 for (i=0; i<64; i++)
dflet 0:50cedd586816 814 *pbuf++ = newtbl[i];
dflet 0:50cedd586816 815
dflet 0:50cedd586816 816 return (length+2);
dflet 0:50cedd586816 817 }
dflet 0:50cedd586816 818
dflet 0:50cedd586816 819
dflet 0:50cedd586816 820 //*****************************************************************************
dflet 0:50cedd586816 821 //
dflet 0:50cedd586816 822 //! DefineHuffmanTableMarkerDC
dflet 0:50cedd586816 823 //!
dflet 0:50cedd586816 824 //! \param1 pointer to Marker buffer
dflet 0:50cedd586816 825 //! \param2 Huffman table
dflet 0:50cedd586816 826 //! \param3 Class Identifier
dflet 0:50cedd586816 827 //!
dflet 0:50cedd586816 828 //! \return Length of the marker
dflet 0:50cedd586816 829 //
dflet 0:50cedd586816 830 //*****************************************************************************
dflet 0:50cedd586816 831 static int DefineHuffmanTableMarkerDC(char *pbuf, unsigned int *htable, int class_id)
dflet 0:50cedd586816 832 {
dflet 0:50cedd586816 833 int i, l, count;
dflet 0:50cedd586816 834 int length;
dflet 0:50cedd586816 835 char *plength;
dflet 0:50cedd586816 836
dflet 0:50cedd586816 837 *pbuf++= 0xFF; // define huffman table marker
dflet 0:50cedd586816 838 *pbuf++= 0xC4;
dflet 0:50cedd586816 839 plength = pbuf; // place holder for length field
dflet 0:50cedd586816 840 *pbuf++;
dflet 0:50cedd586816 841 *pbuf++;
dflet 0:50cedd586816 842 *pbuf++= class_id; // huffman table class | identifier
dflet 0:50cedd586816 843
dflet 0:50cedd586816 844 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 845 {
dflet 0:50cedd586816 846 count = 0;
dflet 0:50cedd586816 847 for (i = 0; i < 12; i++)
dflet 0:50cedd586816 848 {
dflet 0:50cedd586816 849 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 850 count++;
dflet 0:50cedd586816 851 }
dflet 0:50cedd586816 852 *pbuf++= count; // number of huffman codes of length l+1
dflet 0:50cedd586816 853 }
dflet 0:50cedd586816 854
dflet 0:50cedd586816 855 length = 19;
dflet 0:50cedd586816 856 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 857 {
dflet 0:50cedd586816 858 for (i = 0; i < 12; i++)
dflet 0:50cedd586816 859 {
dflet 0:50cedd586816 860 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 861 {
dflet 0:50cedd586816 862 *pbuf++= i; // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 863 length++;
dflet 0:50cedd586816 864 }
dflet 0:50cedd586816 865 }
dflet 0:50cedd586816 866 }
dflet 0:50cedd586816 867
dflet 0:50cedd586816 868 *plength++= length>>8; // length field
dflet 0:50cedd586816 869 *plength = length&0xFF;
dflet 0:50cedd586816 870
dflet 0:50cedd586816 871 return (length + 2);
dflet 0:50cedd586816 872 }
dflet 0:50cedd586816 873
dflet 0:50cedd586816 874
dflet 0:50cedd586816 875 //*****************************************************************************
dflet 0:50cedd586816 876 //
dflet 0:50cedd586816 877 //! DefineHuffmanTableMarkerAC
dflet 0:50cedd586816 878 //! 1. Establishes connection w/ AP//
dflet 0:50cedd586816 879 //! 2. Initializes the camera sub-components//! GPIO Enable & Configuration
dflet 0:50cedd586816 880 //! 3. Listens and processes the image capture requests from user-applications
dflet 0:50cedd586816 881 //!
dflet 0:50cedd586816 882 //! \param1 pointer to Marker buffer
dflet 0:50cedd586816 883 //! \param2 Huffman table
dflet 0:50cedd586816 884 //! \param3 Class Identifier
dflet 0:50cedd586816 885 //!
dflet 0:50cedd586816 886 //! \return Length of the Marker
dflet 0:50cedd586816 887 //!
dflet 0:50cedd586816 888 //
dflet 0:50cedd586816 889 //*****************************************************************************
dflet 0:50cedd586816 890 static int DefineHuffmanTableMarkerAC(char *pbuf, unsigned int *htable, int class_id)
dflet 0:50cedd586816 891 {
dflet 0:50cedd586816 892 int i, l, a, b, count;
dflet 0:50cedd586816 893 char *plength;
dflet 0:50cedd586816 894 int length;
dflet 0:50cedd586816 895
dflet 0:50cedd586816 896 *pbuf++= 0xFF; // define huffman table marker
dflet 0:50cedd586816 897 *pbuf++= 0xC4;
dflet 0:50cedd586816 898 plength = pbuf; // place holder for length field
dflet 0:50cedd586816 899 *pbuf++;
dflet 0:50cedd586816 900 *pbuf++;
dflet 0:50cedd586816 901 *pbuf++= class_id; // huffman table class | identifier
dflet 0:50cedd586816 902
dflet 0:50cedd586816 903 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 904 {
dflet 0:50cedd586816 905 count = 0;
dflet 0:50cedd586816 906 for (i = 0; i < 162; i++)
dflet 0:50cedd586816 907 {
dflet 0:50cedd586816 908 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 909 count++;
dflet 0:50cedd586816 910 }
dflet 0:50cedd586816 911
dflet 0:50cedd586816 912 *pbuf++= count; // number of huffman codes of length l+1
dflet 0:50cedd586816 913 }
dflet 0:50cedd586816 914
dflet 0:50cedd586816 915 length = 19;
dflet 0:50cedd586816 916 for (l = 0; l < 16; l++)
dflet 0:50cedd586816 917 {
dflet 0:50cedd586816 918 // check EOB: 0|0
dflet 0:50cedd586816 919 if ((htable[160] >> 8) == l)
dflet 0:50cedd586816 920 {
dflet 0:50cedd586816 921 *pbuf++= 0; // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 922 length++;
dflet 0:50cedd586816 923 }
dflet 0:50cedd586816 924
dflet 0:50cedd586816 925 // check HUFFVAL: 0|1 to E|A
dflet 0:50cedd586816 926 for (i = 0; i < 150; i++)
dflet 0:50cedd586816 927 {
dflet 0:50cedd586816 928 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 929 {
dflet 0:50cedd586816 930 a = i/10;
dflet 0:50cedd586816 931 b = i%10;
dflet 0:50cedd586816 932 *pbuf++= (a<<4)|(b+1); // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 933 length++;
dflet 0:50cedd586816 934 }
dflet 0:50cedd586816 935 }
dflet 0:50cedd586816 936
dflet 0:50cedd586816 937 // check ZRL: F|0
dflet 0:50cedd586816 938 if ((htable[161] >> 8) == l)
dflet 0:50cedd586816 939 {
dflet 0:50cedd586816 940 *pbuf++= 0xF0; // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 941 length++;
dflet 0:50cedd586816 942 }
dflet 0:50cedd586816 943
dflet 0:50cedd586816 944 // check HUFFVAL: F|1 to F|A
dflet 0:50cedd586816 945 for (i = 150; i < 160; i++)
dflet 0:50cedd586816 946 {
dflet 0:50cedd586816 947 if ((htable[i] >> 8) == l)
dflet 0:50cedd586816 948 {
dflet 0:50cedd586816 949 a = i/10;
dflet 0:50cedd586816 950 b = i%10;
dflet 0:50cedd586816 951 *pbuf++= (a<<4)|(b+1); // HUFFVAL with huffman codes of length l+1
dflet 0:50cedd586816 952 length++;
dflet 0:50cedd586816 953 }
dflet 0:50cedd586816 954 }
dflet 0:50cedd586816 955 }
dflet 0:50cedd586816 956
dflet 0:50cedd586816 957 *plength++= length>>8; // length field
dflet 0:50cedd586816 958 *plength = length&0xFF;
dflet 0:50cedd586816 959 return (length + 2);
dflet 0:50cedd586816 960 }
dflet 0:50cedd586816 961
dflet 0:50cedd586816 962
dflet 0:50cedd586816 963 //*****************************************************************************
dflet 0:50cedd586816 964 //
dflet 0:50cedd586816 965 //! DefineRestartIntervalMarker
dflet 0:50cedd586816 966 //!
dflet 0:50cedd586816 967 //! \param1 pointer to Marker buffer
dflet 0:50cedd586816 968 //! \param2 return interval
dflet 0:50cedd586816 969 //!
dflet 0:50cedd586816 970 //! \return Length
dflet 0:50cedd586816 971 //
dflet 0:50cedd586816 972 //*****************************************************************************
dflet 0:50cedd586816 973 static int DefineRestartIntervalMarker(char *pbuf, int ri)
dflet 0:50cedd586816 974 {
dflet 0:50cedd586816 975 *pbuf++= 0xFF; // define restart interval marker
dflet 0:50cedd586816 976 *pbuf++= 0xDD;
dflet 0:50cedd586816 977 *pbuf++= 0x00; // length
dflet 0:50cedd586816 978 *pbuf++= 0x04;
dflet 0:50cedd586816 979 *pbuf++= ri >> 8; // restart interval
dflet 0:50cedd586816 980 *pbuf++= ri & 0xFF;
dflet 0:50cedd586816 981 return 6;
dflet 0:50cedd586816 982 }
dflet 0:50cedd586816 983 //*****************************************************************************
dflet 0:50cedd586816 984 //
dflet 0:50cedd586816 985 //! CreateJpegHeader
dflet 0:50cedd586816 986 //! Create JPEG Header in JFIF format
dflet 0:50cedd586816 987 //!
dflet 0:50cedd586816 988 //! \param1 header - pointer to JPEG header buffer
dflet 0:50cedd586816 989 //! \param2 width - image width
dflet 0:50cedd586816 990 //! \param3 height - image height
dflet 0:50cedd586816 991 //! \param4 format - color format (0 = YCbCr422, 1 = YCbCr420, 2 = monochrome)
dflet 0:50cedd586816 992 //! \param5 restart_int - restart marker interval
dflet 0:50cedd586816 993 //! \param6 qscale - quantization table scaling factor
dflet 0:50cedd586816 994 //!
dflet 0:50cedd586816 995 //! \return length of JPEG header (bytes)
dflet 0:50cedd586816 996 //
dflet 0:50cedd586816 997 //*****************************************************************************
dflet 0:50cedd586816 998
dflet 0:50cedd586816 999 static int CreateJpegHeader(char *header, int width, int height,
dflet 0:50cedd586816 1000 int format, int restart_int, int qscale)
dflet 0:50cedd586816 1001 {
dflet 0:50cedd586816 1002 Uart_Write((uint8_t*)"CreateJpegHeader \n\r");
dflet 0:50cedd586816 1003 char *pbuf = header;
dflet 0:50cedd586816 1004 int length;
dflet 0:50cedd586816 1005
dflet 0:50cedd586816 1006 // SOI
dflet 0:50cedd586816 1007 *pbuf++= 0xFF;
dflet 0:50cedd586816 1008 *pbuf++= 0xD8;
dflet 0:50cedd586816 1009 length = 2;
dflet 0:50cedd586816 1010
dflet 0:50cedd586816 1011 // JFIF APP0
dflet 0:50cedd586816 1012 length += JfifApp0Marker(pbuf);
dflet 0:50cedd586816 1013
dflet 0:50cedd586816 1014 // Quantization Tables
dflet 0:50cedd586816 1015 pbuf = header + length;
dflet 0:50cedd586816 1016 length += DefineQuantizationTableMarker((unsigned char *)pbuf, qscale, format);
dflet 0:50cedd586816 1017
dflet 0:50cedd586816 1018 // Frame Header
dflet 0:50cedd586816 1019 pbuf = header + length;
dflet 0:50cedd586816 1020 length += FrameHeaderMarker(pbuf, width, height, format);
dflet 0:50cedd586816 1021
dflet 0:50cedd586816 1022 // Huffman Table DC 0 for Luma
dflet 0:50cedd586816 1023 pbuf = header + length;
dflet 0:50cedd586816 1024 length += DefineHuffmanTableMarkerDC(pbuf, &JPEG_StdHuffmanTbl[352], 0x00);
dflet 0:50cedd586816 1025
dflet 0:50cedd586816 1026 // Huffman Table AC 0 for Luma
dflet 0:50cedd586816 1027 pbuf = header + length;
dflet 0:50cedd586816 1028 length += DefineHuffmanTableMarkerAC(pbuf, &JPEG_StdHuffmanTbl[0], 0x10);
dflet 0:50cedd586816 1029
dflet 0:50cedd586816 1030 if (format != FORMAT_MONOCHROME)// YCbCr
dflet 0:50cedd586816 1031 {
dflet 0:50cedd586816 1032 // Huffman Table DC 1 for Chroma
dflet 0:50cedd586816 1033 pbuf = header + length;
dflet 0:50cedd586816 1034 length += DefineHuffmanTableMarkerDC(pbuf, &JPEG_StdHuffmanTbl[368], 0x01);
dflet 0:50cedd586816 1035
dflet 0:50cedd586816 1036 // Huffman Table AC 1 for Chroma
dflet 0:50cedd586816 1037 pbuf = header + length;
dflet 0:50cedd586816 1038 length += DefineHuffmanTableMarkerAC(pbuf, &JPEG_StdHuffmanTbl[176], 0x11);
dflet 0:50cedd586816 1039 }
dflet 0:50cedd586816 1040
dflet 0:50cedd586816 1041 // Restart Interval
dflet 0:50cedd586816 1042 if (restart_int > 0)
dflet 0:50cedd586816 1043 {
dflet 0:50cedd586816 1044 pbuf = header + length;
dflet 0:50cedd586816 1045 length += DefineRestartIntervalMarker(pbuf, restart_int);
dflet 0:50cedd586816 1046 }
dflet 0:50cedd586816 1047
dflet 0:50cedd586816 1048 // Scan Header
dflet 0:50cedd586816 1049 pbuf = header + length;
dflet 0:50cedd586816 1050 length += ScanHeaderMarker(pbuf, format);
dflet 0:50cedd586816 1051
dflet 0:50cedd586816 1052 return length;
dflet 0:50cedd586816 1053 }
dflet 0:50cedd586816 1054 #endif
dflet 0:50cedd586816 1055
dflet 0:50cedd586816 1056
dflet 0:50cedd586816 1057
dflet 0:50cedd586816 1058 //*****************************************************************************
dflet 0:50cedd586816 1059 //
dflet 0:50cedd586816 1060 // Close the Doxygen group.
dflet 0:50cedd586816 1061 //! @}
dflet 0:50cedd586816 1062 //
dflet 0:50cedd586816 1063 //*****************************************************************************
dflet 0:50cedd586816 1064