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aptdec
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aptdec/main.c

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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. 

  23. #include <stdlib.h>

  24. #include <stdio.h>

  25. #include <string.h>

  26. #include <getopt.h>

  27. 

  28. #ifdef WIN32

  29. #include "w32util.h"

  30. #else

  31. #include <libgen.h>

  32. #endif

  33. 

  34. #include <sndfile.h>

  35. #include <png.h>

  36. 

  37. #include "version.h"

  38. #include "offsets.h"

  39. 

  40. #include "temppalette.h"

  41. #include "gvipalette.h"

  42. 

  43. extern int getpixelrow(float *pixelv);

  44. extern int init_dsp(double F);;

  45. 

  46. static SNDFILE *inwav;

  47. 

  48. static int initsnd(char *filename)

  49. {

  50.     SF_INFO infwav;

  51.     int	    res;

  52. 

  53. /* open wav input file */

  54.     infwav.format = 0;

  55.     inwav = sf_open(filename, SFM_READ, &infwav);

  56.     if (inwav == NULL) {

  57. 	fprintf(stderr, "could not open %s\n", filename);

  58. 	return (1);

  59.     }

  60. 

  61.     res=init_dsp(infwav.samplerate);

  62.     if(res<0) {

  63. 	fprintf(stderr, "Sample rate too low : %d\n", infwav.samplerate);

  64. 	return (1);

  65.     }

  66.     if(res>0) {

  67. 	fprintf(stderr, "Sample rate too hight : %d\n", infwav.samplerate);

  68. 	return (1);

  69.     }

  70.     fprintf(stderr, "Sample rate : %d\n", infwav.samplerate);

  71. 

  72.     if (infwav.channels != 1) {

  73. 	fprintf(stderr, "Too many channels in input file : %d\n", infwav.channels);

  74. 	return (1);

  75.     }

  76. 

  77.     return (0);

  78. }

  79. 

  80. int getsample(float *sample, int nb)

  81. {

  82.     return (sf_read_float(inwav, sample, nb));

  83. }

  84. 

  85. static png_text text_ptr[] = {

  86.     {PNG_TEXT_COMPRESSION_NONE, "Software", version, sizeof(version)}

  87.     ,

  88.     {PNG_TEXT_COMPRESSION_NONE, "Channel", NULL, 0}

  89.     ,

  90.     {PNG_TEXT_COMPRESSION_NONE, "Description", "NOAA POES satellite Image",

  91.      25}

  92. };

  93. 

  94. static int

  95. ImageOut(char *filename, char *chid, float **prow, int nrow, 

  96. 	 int width, int offset, png_color *palette)

  97. {

  98.     FILE *pngfile;

  99.     png_infop info_ptr;

  100.     png_structp png_ptr;

  101.     int n;

  102. 

  103. /* init png lib */

  104.     png_ptr =

  105. 	png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);

  106.     if (!png_ptr) {

  107. 	fprintf(stderr, "could not open create png_ptr\n");

  108. 	return (1);

  109.     }

  110. 

  111.     info_ptr = png_create_info_struct(png_ptr);

  112.     if (!info_ptr) {

  113. 	png_destroy_write_struct(&png_ptr, (png_infopp) NULL);

  114. 	fprintf(stderr, "could not open create info_ptr\n");

  115. 	return (1);

  116.     }

  117. 

  118.     if(palette==NULL)  {

  119. 	/* grey image */

  120.     	png_set_IHDR(png_ptr, info_ptr, width, nrow,

  121. 		 8, PNG_COLOR_TYPE_GRAY, PNG_INTERLACE_NONE,

  122. 		 PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);

  123.     } else {

  124. 	/* palette color mage */

  125.     	png_set_IHDR(png_ptr, info_ptr, width, nrow,

  126. 		 8, PNG_COLOR_TYPE_PALETTE, PNG_INTERLACE_NONE,

  127. 		 PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);

  128. 	png_set_PLTE(png_ptr, info_ptr, palette, 256);

  129.     }

  130. 

  131.     text_ptr[1].text = chid;

  132.     text_ptr[1].text_length = strlen(chid);

  133.     png_set_text(png_ptr, info_ptr, text_ptr, 3);

  134.     png_set_pHYs(png_ptr, info_ptr, 4000, 4000, PNG_RESOLUTION_METER);

  135. 

  136.     printf("Writing %s ... ", filename);

  137.     fflush(stdout);

  138.     pngfile = fopen(filename, "wb");

  139.     if (pngfile == NULL) {

  140. 	fprintf(stderr, "could not open %s\n", filename);

  141. 	return (1);

  142.     }

  143.     png_init_io(png_ptr, pngfile);

  144.     png_write_info(png_ptr, info_ptr);

  145. 

  146.     for (n = 0; n < nrow; n++) {

  147. 	float *pixelv;

  148. 	png_byte pixel[2*IMG_WIDTH];

  149. 	int i;

  150. 

  151. 	pixelv = prow[n];

  152. 	for (i = 0; i < width; i++) {

  153. 	    pixel[i] = pixelv[i + offset];

  154. 	}

  155. 	png_write_row(png_ptr, pixel);

  156.     }

  157.     png_write_end(png_ptr, info_ptr);

  158.     fclose(pngfile);

  159.     printf("Done\n");

  160.     png_destroy_write_struct(&png_ptr, &info_ptr);

  161.     return (0);

  162. }

  163. 

  164. static int ImageRGBOut(char *filename, float **prow, int nrow)

  165. {

  166.     FILE *pngfile;

  167.     png_infop info_ptr;

  168.     png_structp png_ptr;

  169.     int n;

  170. 

  171.     extern void falsecolor(double v, double t, float *r, float *g,

  172. 			    float *b);

  173. 

  174. /* init png lib */

  175.     png_ptr =

  176. 	png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);

  177.     if (!png_ptr) {

  178. 	fprintf(stderr, "could not open create png_ptr\n");

  179. 	return (1);

  180.     }

  181. 

  182.     info_ptr = png_create_info_struct(png_ptr);

  183.     if (!info_ptr) {

  184. 	png_destroy_write_struct(&png_ptr, (png_infopp) NULL);

  185. 	fprintf(stderr, "could not open create info_ptr\n");

  186. 	return (1);

  187.     }

  188. 

  189.     png_set_IHDR(png_ptr, info_ptr, CH_WIDTH , nrow ,

  190. 		 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,

  191. 		 PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);

  192. 

  193.     png_set_pHYs(png_ptr, info_ptr, 4000, 4000, PNG_RESOLUTION_METER);

  194. 

  195.     text_ptr[1].text = "False Colors";

  196.     text_ptr[1].text_length = strlen(text_ptr[1].text);

  197.     png_set_text(png_ptr, info_ptr, text_ptr, 3);

  198. 

  199.     printf("Computing False colors & writing : %s ...", filename);

  200.     fflush(stdout);

  201.     pngfile = fopen(filename, "wb");

  202.     if (pngfile == NULL) {

  203. 	fprintf(stderr, "could not open %s\n", filename);

  204. 	return (1);

  205.     }

  206.     png_init_io(png_ptr, pngfile);

  207.     png_write_info(png_ptr, info_ptr);

  208. 

  209.     for (n = 0; n < nrow ; n++) {

  210. 	png_color pix[CH_WIDTH];

  211.     	float *pixelc;

  212. 	int i;

  213. 

  214. 	pixelc = prow[n];

  215. 

  216. 	for (i = 0; i < CH_WIDTH - 1; i++) {

  217. 	    float v, t;

  218.   	    float r, g, b;

  219. 

  220. 	    v = pixelc[i+CHA_OFFSET];

  221. 	    t = pixelc[i+CHB_OFFSET];

  222. 

  223. 	    falsecolor(v, t, &r, &g, &b);

  224. 

  225. 	    pix[i].red = 255.0 * r; 

  226. 	    pix[i].green = 255.0 * g;

  227. 	    pix[i].blue = 255.0 * b;

  228. 	}

  229. 	png_write_row(png_ptr, (png_bytep) pix);

  230.     }

  231.     png_write_end(png_ptr, info_ptr);

  232.     fclose(pngfile);

  233.     printf("Done\n");

  234.     png_destroy_write_struct(&png_ptr, &info_ptr);

  235.     return (0);

  236. }

  237. 

  238. 

  239. static void Distrib(char *filename,float **prow,int nrow)

  240. {

  241. unsigned int distrib[256][256];

  242. int n;

  243. int x,y;

  244. int max=0;

  245. FILE *df;

  246. 

  247. for(y=0;y<256;y++)

  248. 	for(x=0;x<256;x++)

  249.                 distrib[y][x]=0;

  250. 

  251. for(n=0;n<nrow;n++) {

  252.         float *pixelv;

  253.         int     i;

  254. 

  255.         pixelv=prow[n];

  256.         for(i=0;i<CH_WIDTH;i++) {

  257. 

  258.                 y=(int)(pixelv[i+CHA_OFFSET]);

  259.                 x=(int)(pixelv[i+CHB_OFFSET]);

  260.                 distrib[y][x]+=1;

  261. 		if(distrib[y][x]> max) max=distrib[y][x];

  262.         }

  263. }

  264. df=fopen(filename,"w");

  265. 

  266. printf("Writing %s\n",filename);

  267. 

  268. fprintf(df,"P2\n#max %d\n",max);

  269. fprintf(df,"256 256\n255\n");

  270. for(y=0;y<256;y++)

  271. 	for(x=0;x<256;x++)

  272. 		fprintf(df,"%d\n",(int)((255.0*(double)(distrib[y][x]))/(double)max));

  273. fclose(df);

  274. }

  275. 

  276. 

  277. extern int Calibrate(float **prow, int nrow, int offset);

  278. extern void Temperature(float **prow, int nrow, int ch, int offset);

  279. extern int Ngvi(float **prow, int nrow);

  280. extern void readfconf(char *file);

  281. extern int optind, opterr;

  282. extern char *optarg;

  283. int satnum = 4;

  284. 

  285. static void usage(void)

  286. {

  287.     fprintf(stderr, "atpdec [options] soundfiles ...\n");

  288.     fprintf(stderr,

  289. 	    "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|19]\tSatellite number (for temperature and false color generation)\n");

  290.    exit(1);

  291. }

  292. 

  293. int main(int argc, char **argv)

  294. {

  295.     char pngfilename[1024];

  296.     char name[1024];

  297.     char pngdirname[1024] = "";

  298.     char imgopt[20] = "ac";

  299.     float *prow[3000];

  300.     char *chid[] = { "?", "1", "2", "3A", "4", "5", "3B" };

  301.     int nrow;

  302.     int chA,chB;

  303.     int c;

  304. 

  305.     printf("%s\n", version);

  306. 

  307.     opterr = 0;

  308.     while ((c = getopt(argc, argv, "c:d:i:s:")) != EOF) {

  309. 	switch (c) {

  310. 	case 'd':

  311. 	    strcpy(pngdirname, optarg);

  312. 	    break;

  313. 	case 'c':

  314. 	    readfconf(optarg);

  315. 	    break;

  316. 	case 'i':

  317. 	    strcpy(imgopt, optarg);

  318. 	    break;

  319. 	case 's':

  320. 	    satnum = atoi(optarg)-15;

  321. 	    if (satnum < 0 || satnum > 4) {

  322. 		fprintf(stderr, "invalid satellite number  : must be in [15-19]\n");

  323. 		exit(1);

  324. 	    }

  325. 	    break;

  326. 	default:

  327. 	    usage();

  328. 	}

  329.     }

  330. 

  331.     for (nrow = 0; nrow < 3000; nrow++)

  332. 	prow[nrow] = NULL;

  333. 

  334.     for (; optind < argc; optind++) {

  335. 

  336. 	chA=chB=0;

  337. 

  338. 	strcpy(pngfilename, argv[optind]);

  339. 	strcpy(name, basename(pngfilename));

  340. 	strtok(name, ".");

  341. 	if (pngdirname[0] == '\0') {

  342. 	    strcpy(pngfilename, argv[optind]);

  343. 	    strcpy(pngdirname, dirname(pngfilename));

  344. 	}

  345. 

  346. /* open snd input */

  347. 	if (initsnd(argv[optind]))

  348. 	    exit(1);

  349. 

  350. /* main loop */

  351. 	printf("Decoding: %s \n", argv[optind]);

  352. 	for (nrow = 0; nrow < 3000; nrow++) {

  353. 	    if (prow[nrow] == NULL)

  354. 		prow[nrow] = (float *) malloc(sizeof(float) * 2150);

  355. 	    if (getpixelrow(prow[nrow]) == 0)

  356. 		break;

  357. 	    printf("%d\r", nrow);

  358. 	    fflush(stdout);

  359. 	}

  360. 	printf("\nDone\n");

  361. 	sf_close(inwav);

  362. 

  363. 

  364. /* raw image */

  365. 	if (strchr(imgopt, (int) 'r') != NULL) {

  366. 	    sprintf(pngfilename, "%s/%s-r.png", pngdirname, name);

  367. 	    ImageOut(pngfilename, "raw", prow, nrow, IMG_WIDTH, 0,NULL);

  368. 	}

  369. 

  370. /* Channel A */

  371. 	if (((strchr(imgopt, (int) 'a') != NULL)

  372. 	     || (strchr(imgopt, (int) 'c') != NULL)

  373. 	     || (strchr(imgopt, (int) 'd') != NULL))) {

  374. 	    chA = Calibrate(prow, nrow, CHA_OFFSET);

  375. 	    if (chA >= 0) {

  376. 		if (strchr(imgopt, (int) 'a') != NULL) {

  377. 		    sprintf(pngfilename, "%s/%s-%s.png", pngdirname, name, chid[chA]);

  378. 		    ImageOut(pngfilename, chid[chA], prow, nrow, CH_WIDTH , CHA_OFFSET,NULL);

  379. 		}

  380. 	    }

  381. 	}

  382. 

  383. /* Channel B */

  384. 	if ((strchr(imgopt, (int) 'b') != NULL)

  385. 	    || (strchr(imgopt, (int) 'c') != NULL)

  386. 	    || (strchr(imgopt, (int) 't') != NULL)

  387. 	    || (strchr(imgopt, (int) 'd') != NULL)) {

  388. 	    chB = Calibrate(prow, nrow, CHB_OFFSET);

  389. 	    if (chB >= 0) {

  390. 		if (strchr(imgopt, (int) 'b') != NULL) {

  391. 		    sprintf(pngfilename, "%s/%s-%s.png", pngdirname, name, chid[chB]);

  392. 		    ImageOut(pngfilename, chid[chB], prow, nrow, CH_WIDTH , CHB_OFFSET ,NULL);

  393. 		}

  394. 	    }

  395. 	    if (chB > 3) {

  396. 		Temperature(prow, nrow, chB, CHB_OFFSET);

  397. 		if (strchr(imgopt, (int) 't') != NULL) {

  398. 		    sprintf(pngfilename, "%s/%s-t.png", pngdirname, name);

  399. 		    ImageOut(pngfilename, "Temperature", prow, nrow, CH_WIDTH, CHB_OFFSET, (png_color*)TempPalette);

  400. 		}

  401. 	    }

  402. 	}

  403. 

  404. /* distribution */

  405. 	if (chA && chB && strchr(imgopt, (int) 'd') != NULL) {

  406. 	    sprintf(pngfilename, "%s/%s-d.pnm", pngdirname, name);

  407. 	    Distrib(pngfilename, prow, nrow);

  408. 	}

  409. 

  410. /* color image */

  411. 	if (chA==2 && chB==4 && strchr(imgopt, (int) 'c') != NULL) {

  412. 	    sprintf(pngfilename, "%s/%s-c.png", pngdirname, name);

  413. 	    ImageRGBOut(pngfilename, prow, nrow);

  414. 	}

  415. 

  416. /* GVI image */

  417. 	if (chA==1 && chB==2 && strchr(imgopt, (int) 'c') != NULL) {

  418. 	    Ngvi(prow, nrow);

  419. 	    sprintf(pngfilename, "%s/%s-c.png", pngdirname, name);

  420. 	   ImageOut(pngfilename, "GVI", prow, nrow, CH_WIDTH, CHB_OFFSET, (png_color*)GviPalette);

  421. 	}

  422.     }

  423.     exit(0);

  424. }