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  1. /*
  2. * Atpdec
  3. * Copyright (c) 2004-2005 by Thierry Leconte (F4DWV)
  4. *
  5. * $Id$
  6. *
  7. * This library is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU Library General Public License as
  9. * published by the Free Software Foundation; either version 2 of
  10. * the License, or (at your option) any later version.
  11. *
  12. * This program is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. * GNU Library General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU Library General Public
  18. * License along with this library; if not, write to the Free Software
  19. * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20. *
  21. */
  22. #include <stdlib.h>
  23. #include <stdio.h>
  24. #ifdef WIN32
  25. #include "w32util.h"
  26. #else
  27. #include <libgen.h>
  28. #endif
  29. #include <string.h>
  30. #include <sndfile.h>
  31. #include <png.h>
  32. #include "version.h"
  33. #include "temppalette.h"
  34. #include "offsets.h"
  35. extern int getpixelrow(float *pixelv);
  36. extern int init_dsp(double F);;
  37. static SNDFILE *inwav;
  38. static int initsnd(char *filename)
  39. {
  40. SF_INFO infwav;
  41. int res;
  42. /* open wav input file */
  43. infwav.format = 0;
  44. inwav = sf_open(filename, SFM_READ, &infwav);
  45. if (inwav == NULL) {
  46. fprintf(stderr, "could not open %s\n", filename);
  47. return (1);
  48. }
  49. res=init_dsp(infwav.samplerate);
  50. if(res<0) {
  51. fprintf(stderr, "Sample rate too low : %d\n", infwav.samplerate);
  52. return (1);
  53. }
  54. if(res>0) {
  55. fprintf(stderr, "Sample rate too hight : %d\n", infwav.samplerate);
  56. return (1);
  57. }
  58. fprintf(stderr, "Sample rate : %d\n", infwav.samplerate);
  59. if (infwav.channels != 1) {
  60. fprintf(stderr, "Too many channels in input file : %d\n", infwav.channels);
  61. return (1);
  62. }
  63. return (0);
  64. }
  65. int getsample(float *sample, int nb)
  66. {
  67. return (sf_read_float(inwav, sample, nb));
  68. }
  69. static png_text text_ptr[] = {
  70. {PNG_TEXT_COMPRESSION_NONE, "Software", version, sizeof(version)}
  71. ,
  72. {PNG_TEXT_COMPRESSION_NONE, "Channel", NULL, 0}
  73. ,
  74. {PNG_TEXT_COMPRESSION_NONE, "Description", "NOAA POES satellite Image",
  75. 25}
  76. };
  77. static int
  78. ImageOut(char *filename, char *chid, float **prow, int nrow,
  79. int width, int offset, png_color *palette)
  80. {
  81. FILE *pngfile;
  82. png_infop info_ptr;
  83. png_structp png_ptr;
  84. int n;
  85. /* init png lib */
  86. png_ptr =
  87. png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
  88. if (!png_ptr) {
  89. fprintf(stderr, "could not open create png_ptr\n");
  90. return (1);
  91. }
  92. info_ptr = png_create_info_struct(png_ptr);
  93. if (!info_ptr) {
  94. png_destroy_write_struct(&png_ptr, (png_infopp) NULL);
  95. fprintf(stderr, "could not open create info_ptr\n");
  96. return (1);
  97. }
  98. if(palette==NULL) {
  99. /* grey image */
  100. png_set_IHDR(png_ptr, info_ptr, width, nrow,
  101. 8, PNG_COLOR_TYPE_GRAY, PNG_INTERLACE_NONE,
  102. PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
  103. } else {
  104. /* palette color mage */
  105. png_set_IHDR(png_ptr, info_ptr, width, nrow,
  106. 8, PNG_COLOR_TYPE_PALETTE, PNG_INTERLACE_NONE,
  107. PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
  108. png_set_PLTE(png_ptr, info_ptr, palette, 256);
  109. }
  110. text_ptr[1].text = chid;
  111. text_ptr[1].text_length = strlen(chid);
  112. png_set_text(png_ptr, info_ptr, text_ptr, 3);
  113. png_set_pHYs(png_ptr, info_ptr, 4000, 4000, PNG_RESOLUTION_METER);
  114. printf("Writing %s ... ", filename);
  115. fflush(stdout);
  116. pngfile = fopen(filename, "wb");
  117. if (pngfile == NULL) {
  118. fprintf(stderr, "could not open %s\n", filename);
  119. return (1);
  120. }
  121. png_init_io(png_ptr, pngfile);
  122. png_write_info(png_ptr, info_ptr);
  123. for (n = 0; n < nrow; n++) {
  124. float *pixelv;
  125. png_byte pixel[2*IMG_WIDTH];
  126. int i;
  127. pixelv = prow[n];
  128. for (i = 0; i < width; i++) {
  129. pixel[i] = pixelv[i + offset];
  130. }
  131. png_write_row(png_ptr, pixel);
  132. }
  133. png_write_end(png_ptr, info_ptr);
  134. fclose(pngfile);
  135. printf("Done\n");
  136. png_destroy_write_struct(&png_ptr, &info_ptr);
  137. return (0);
  138. }
  139. static int ImageRGBOut(char *filename, float **prow, int nrow)
  140. {
  141. FILE *pngfile;
  142. png_infop info_ptr;
  143. png_structp png_ptr;
  144. int n;
  145. extern void falsecolor(double v, double t, float *r, float *g,
  146. float *b);
  147. /* init png lib */
  148. png_ptr =
  149. png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
  150. if (!png_ptr) {
  151. fprintf(stderr, "could not open create png_ptr\n");
  152. return (1);
  153. }
  154. info_ptr = png_create_info_struct(png_ptr);
  155. if (!info_ptr) {
  156. png_destroy_write_struct(&png_ptr, (png_infopp) NULL);
  157. fprintf(stderr, "could not open create info_ptr\n");
  158. return (1);
  159. }
  160. png_set_IHDR(png_ptr, info_ptr, CH_WIDTH , nrow ,
  161. 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
  162. PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
  163. png_set_pHYs(png_ptr, info_ptr, 4000, 4000, PNG_RESOLUTION_METER);
  164. text_ptr[1].text = "False Colors";
  165. text_ptr[1].text_length = strlen(text_ptr[1].text);
  166. png_set_text(png_ptr, info_ptr, text_ptr, 3);
  167. printf("Computing False colors & writing : %s ...", filename);
  168. fflush(stdout);
  169. pngfile = fopen(filename, "wb");
  170. if (pngfile == NULL) {
  171. fprintf(stderr, "could not open %s\n", filename);
  172. return (1);
  173. }
  174. png_init_io(png_ptr, pngfile);
  175. png_write_info(png_ptr, info_ptr);
  176. for (n = 0; n < nrow ; n++) {
  177. png_color pix[CH_WIDTH];
  178. float *pixelc;
  179. int i;
  180. pixelc = prow[n];
  181. for (i = 0; i < CH_WIDTH - 1; i++) {
  182. float v, t;
  183. float r, g, b;
  184. v = pixelc[i+CHA_OFFSET];
  185. t = pixelc[i+CHB_OFFSET];
  186. falsecolor(v, t, &r, &g, &b);
  187. pix[i].red = 255.0 * r;
  188. pix[i].green = 255.0 * g;
  189. pix[i].blue = 255.0 * b;
  190. }
  191. png_write_row(png_ptr, (png_bytep) pix);
  192. }
  193. png_write_end(png_ptr, info_ptr);
  194. fclose(pngfile);
  195. printf("Done\n");
  196. png_destroy_write_struct(&png_ptr, &info_ptr);
  197. return (0);
  198. }
  199. static void Distrib(char *filename,float **prow,int nrow)
  200. {
  201. unsigned int distrib[256][256];
  202. int n;
  203. int x,y;
  204. int max=0;
  205. FILE *df;
  206. for(y=0;y<256;y++)
  207. for(x=0;x<256;x++)
  208. distrib[y][x]=0;
  209. for(n=0;n<nrow;n++) {
  210. float *pixelv;
  211. int i;
  212. pixelv=prow[n];
  213. for(i=0;i<CH_WIDTH;i++) {
  214. y=(int)(pixelv[i+CHA_OFFSET]);
  215. x=(int)(pixelv[i+CHB_OFFSET]);
  216. distrib[y][x]+=1;
  217. if(distrib[y][x]> max) max=distrib[y][x];
  218. }
  219. }
  220. df=fopen(filename,"w");
  221. printf("Writing %s\n",filename);
  222. fprintf(df,"P2\n#max %d\n",max);
  223. fprintf(df,"256 256\n255\n");
  224. for(y=0;y<256;y++)
  225. for(x=0;x<256;x++)
  226. fprintf(df,"%d\n",(int)((255.0*(double)(distrib[y][x]))/(double)max));
  227. fclose(df);
  228. }
  229. extern int Calibrate(float **prow, int nrow, int offset);
  230. extern void Temperature(float **prow, int nrow, int ch, int offset);
  231. extern int Ngiv(float **prow, int nrow);
  232. extern void readfconf(char *file);
  233. extern int optind, opterr;
  234. extern char *optarg;
  235. int satnum = 1;
  236. static void usage(void)
  237. {
  238. fprintf(stderr, "atpdec [options] soundfiles ...\n");
  239. fprintf(stderr,
  240. "options:\n-d <dir>\tDestination directory\n-i [r|a|b|c|t]\tOutput image type\n\t\t\tr: Raw\n\t\t\ta: A chan.\n\t\t\tb: B chan.\n\t\t\tc: False color\n\t\t\tt: Temperature\n-c <file>\tFalse color config file\n-s [15|16|17|18]\tSatellite number (for temperature and false color generation)\n");
  241. exit(1);
  242. }
  243. int main(int argc, char **argv)
  244. {
  245. char pngfilename[1024];
  246. char name[1024];
  247. char pngdirname[1024] = "";
  248. char imgopt[20] = "ac";
  249. float *prow[3000];
  250. char *chid[] = { "?", "1", "2", "3A", "4", "5", "3B" };
  251. int nrow;
  252. int chA,chB;
  253. int c;
  254. printf("%s\n", version);
  255. opterr = 0;
  256. while ((c = getopt(argc, argv, "c:d:i:s:")) != EOF) {
  257. switch (c) {
  258. case 'd':
  259. strcpy(pngdirname, optarg);
  260. break;
  261. case 'c':
  262. readfconf(optarg);
  263. break;
  264. case 'i':
  265. strcpy(imgopt, optarg);
  266. break;
  267. case 's':
  268. satnum = atoi(optarg)-15;
  269. if (satnum < 0 || satnum > 3) {
  270. fprintf(stderr, "invalid satellite number : must be in [15-18]\n");
  271. exit(1);
  272. }
  273. break;
  274. default:
  275. usage();
  276. }
  277. }
  278. for (nrow = 0; nrow < 3000; nrow++)
  279. prow[nrow] = NULL;
  280. for (; optind < argc; optind++) {
  281. chA=chB=0;
  282. strcpy(pngfilename, argv[optind]);
  283. strcpy(name, basename(pngfilename));
  284. strtok(name, ".");
  285. if (pngdirname[0] == '\0') {
  286. strcpy(pngfilename, argv[optind]);
  287. strcpy(pngdirname, dirname(pngfilename));
  288. }
  289. /* open snd input */
  290. if (initsnd(argv[optind]))
  291. exit(1);
  292. /* main loop */
  293. printf("Decoding: %s \n", argv[optind]);
  294. for (nrow = 0; nrow < 3000; nrow++) {
  295. if (prow[nrow] == NULL)
  296. prow[nrow] = (float *) malloc(sizeof(float) * 2150);
  297. if (getpixelrow(prow[nrow]) == 0)
  298. break;
  299. printf("%d\r", nrow);
  300. fflush(stdout);
  301. }
  302. printf("\nDone\n");
  303. sf_close(inwav);
  304. /* raw image */
  305. if (strchr(imgopt, (int) 'r') != NULL) {
  306. sprintf(pngfilename, "%s/%s-r.png", pngdirname, name);
  307. ImageOut(pngfilename, "raw", prow, nrow, IMG_WIDTH, 0,NULL);
  308. }
  309. /* Channel A */
  310. if (((strchr(imgopt, (int) 'a') != NULL)
  311. || (strchr(imgopt, (int) 'c') != NULL)
  312. || (strchr(imgopt, (int) 'd') != NULL))) {
  313. chA = Calibrate(prow, nrow, CHA_OFFSET);
  314. if (chA >= 0) {
  315. if (strchr(imgopt, (int) 'a') != NULL) {
  316. sprintf(pngfilename, "%s/%s-%s.png", pngdirname, name, chid[chA]);
  317. ImageOut(pngfilename, chid[chA], prow, nrow, CH_WIDTH , CHA_OFFSET,NULL);
  318. }
  319. }
  320. }
  321. /* Channel B */
  322. if ((strchr(imgopt, (int) 'b') != NULL)
  323. || (strchr(imgopt, (int) 'c') != NULL)
  324. || (strchr(imgopt, (int) 't') != NULL)
  325. || (strchr(imgopt, (int) 'd') != NULL)) {
  326. chB = Calibrate(prow, nrow, CHB_OFFSET);
  327. if (chB >= 0) {
  328. if (strchr(imgopt, (int) 'b') != NULL) {
  329. sprintf(pngfilename, "%s/%s-%s.png", pngdirname, name, chid[chB]);
  330. ImageOut(pngfilename, chid[chB], prow, nrow, CH_WIDTH , CHB_OFFSET ,NULL);
  331. }
  332. }
  333. if (chB > 3) {
  334. Temperature(prow, nrow, chB, CHB_OFFSET);
  335. if (strchr(imgopt, (int) 't') != NULL) {
  336. sprintf(pngfilename, "%s/%s-t.png", pngdirname, name);
  337. ImageOut(pngfilename, "Temperature", prow, nrow, CH_WIDTH, CHB_OFFSET, (png_color*)TempPalette);
  338. }
  339. }
  340. }
  341. /* distribution */
  342. if (chA && chB && strchr(imgopt, (int) 'd') != NULL) {
  343. sprintf(pngfilename, "%s/%s-d.pnm", pngdirname, name);
  344. Distrib(pngfilename, prow, nrow);
  345. }
  346. /* color image */
  347. if (chA==2 && chB==4 && strchr(imgopt, (int) 'c') != NULL) {
  348. sprintf(pngfilename, "%s/%s-c.png", pngdirname, name);
  349. ImageRGBOut(pngfilename, prow, nrow);
  350. }
  351. /* vegetation image */
  352. if (chA==1 && chB==2 && strchr(imgopt, (int) 'c') != NULL) {
  353. Ngiv(prow, nrow);
  354. sprintf(pngfilename, "%s/%s-c.png", pngdirname, name);
  355. ImageOut(pngfilename, "Vegetation", prow, nrow, CH_WIDTH, CHB_OFFSET, (png_color*)TempPalette);
  356. }
  357. }
  358. exit(0);
  359. }