Mercurial > hg > forks > libbpg
annotate bpgdec.c @ 34:5d51fff843eb default tip
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Sun, 08 Mar 2020 19:18:48 +0200 |
| parents | 33594243ce31 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * BPG decoder command line utility | |
| 3 * | |
| 4 * Copyright (c) 2014 Fabrice Bellard | |
| 5 * | |
| 6 * Permission is hereby granted, free of charge, to any person obtaining a copy | |
| 7 * of this software and associated documentation files (the "Software"), to deal | |
| 8 * in the Software without restriction, including without limitation the rights | |
| 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| 10 * copies of the Software, and to permit persons to whom the Software is | |
| 11 * furnished to do so, subject to the following conditions: | |
| 12 * | |
| 13 * The above copyright notice and this permission notice shall be included in | |
| 14 * all copies or substantial portions of the Software. | |
| 15 * | |
| 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
| 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
| 22 * THE SOFTWARE. | |
| 23 */ | |
| 24 | |
| 25 #include <stdlib.h> | |
| 26 #include <stdio.h> | |
| 27 #include <math.h> | |
| 28 #include <getopt.h> | |
| 29 #include <inttypes.h> | |
| 20 | 30 #include <string.h> |
| 31 | |
| 0 | 32 |
| 33 /* define it to include PNG output */ | |
| 34 #define USE_PNG | |
| 35 | |
| 36 #ifdef USE_PNG | |
| 37 #include <png.h> | |
| 38 #endif | |
| 39 | |
|
34
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
40 #ifdef HAVE_LIBEXIF |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
41 #include <exif-data.h> |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
42 #endif |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
43 |
| 0 | 44 #include "libbpg.h" |
| 45 | |
| 46 static void ppm_save(BPGDecoderContext *img, const char *filename) | |
| 47 { | |
| 48 BPGImageInfo img_info_s, *img_info = &img_info_s; | |
| 49 FILE *f; | |
| 50 int w, h, y; | |
| 51 uint8_t *rgb_line; | |
| 52 | |
| 53 bpg_decoder_get_info(img, img_info); | |
|
5
524eae707ba4
Cosmetics: Remove trailing whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
54 |
| 0 | 55 w = img_info->width; |
| 56 h = img_info->height; | |
| 57 | |
| 58 rgb_line = malloc(3 * w); | |
| 59 | |
| 60 f = fopen(filename,"wb"); | |
| 61 if (!f) { | |
| 62 fprintf(stderr, "%s: I/O error\n", filename); | |
| 63 exit(1); | |
| 64 } | |
|
5
524eae707ba4
Cosmetics: Remove trailing whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
65 |
| 0 | 66 fprintf(f, "P6\n%d %d\n%d\n", w, h, 255); |
|
5
524eae707ba4
Cosmetics: Remove trailing whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
67 |
| 0 | 68 bpg_decoder_start(img, BPG_OUTPUT_FORMAT_RGB24); |
| 69 for (y = 0; y < h; y++) { | |
| 70 bpg_decoder_get_line(img, rgb_line); | |
| 71 fwrite(rgb_line, 1, w * 3, f); | |
| 72 } | |
| 73 fclose(f); | |
| 74 | |
| 75 free(rgb_line); | |
| 76 } | |
| 77 | |
| 78 #ifdef USE_PNG | |
| 79 static void png_write_data (png_structp png_ptr, png_bytep data, | |
| 80 png_size_t length) | |
| 81 { | |
|
23
d0ec05fbab88
Cleanups and warnings fixes.
Matti Hamalainen <ccr@tnsp.org>
parents:
21
diff
changeset
|
82 FILE *f = png_get_io_ptr(png_ptr); |
|
d0ec05fbab88
Cleanups and warnings fixes.
Matti Hamalainen <ccr@tnsp.org>
parents:
21
diff
changeset
|
83 png_size_t ret; |
| 0 | 84 ret = fwrite(data, 1, length, f); |
| 85 if (ret != length) | |
| 86 png_error(png_ptr, "PNG Write Error"); | |
| 87 } | |
| 88 | |
| 89 static void png_save(BPGDecoderContext *img, const char *filename, int bit_depth) | |
| 90 { | |
| 91 BPGImageInfo img_info_s, *img_info = &img_info_s; | |
| 92 FILE *f; | |
| 93 png_structp png_ptr; | |
| 94 png_infop info_ptr; | |
| 95 png_bytep row_pointer; | |
| 96 int y, color_type, bpp; | |
| 97 BPGDecoderOutputFormat out_fmt; | |
| 98 | |
| 99 if (bit_depth != 8 && bit_depth != 16) { | |
| 100 fprintf(stderr, "Only bit_depth = 8 or 16 are supported for PNG output\n"); | |
| 101 exit(1); | |
| 102 } | |
| 103 | |
| 104 bpg_decoder_get_info(img, img_info); | |
| 105 | |
| 106 f = fopen(filename, "wb"); | |
| 107 if (!f) { | |
| 108 fprintf(stderr, "%s: I/O error\n", filename); | |
| 109 exit(1); | |
| 110 } | |
| 111 | |
| 112 png_ptr = png_create_write_struct_2(PNG_LIBPNG_VER_STRING, | |
| 113 NULL, | |
| 114 NULL, /* error */ | |
| 115 NULL, /* warning */ | |
| 116 NULL, | |
| 117 NULL, | |
| 118 NULL); | |
| 119 info_ptr = png_create_info_struct(png_ptr); | |
| 120 png_set_write_fn(png_ptr, (png_voidp)f, &png_write_data, NULL); | |
| 121 | |
| 122 if (setjmp(png_jmpbuf(png_ptr)) != 0) { | |
| 123 fprintf(stderr, "PNG write error\n"); | |
| 124 exit(1); | |
| 125 } | |
| 126 | |
| 127 if (img_info->has_alpha) | |
| 128 color_type = PNG_COLOR_TYPE_RGB_ALPHA; | |
| 129 else | |
| 130 color_type = PNG_COLOR_TYPE_RGB; | |
|
5
524eae707ba4
Cosmetics: Remove trailing whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
131 |
| 0 | 132 png_set_IHDR(png_ptr, info_ptr, img_info->width, img_info->height, |
| 133 bit_depth, color_type, PNG_INTERLACE_NONE, | |
| 134 PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT); | |
| 135 | |
| 136 png_write_info(png_ptr, info_ptr); | |
| 137 | |
| 138 #if __BYTE_ORDER__ != __ORDER_BIG_ENDIAN__ | |
| 139 if (bit_depth == 16) { | |
| 140 png_set_swap(png_ptr); | |
| 141 } | |
| 142 #endif | |
|
5
524eae707ba4
Cosmetics: Remove trailing whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
143 |
| 0 | 144 if (bit_depth == 16) { |
| 145 if (img_info->has_alpha) | |
| 146 out_fmt = BPG_OUTPUT_FORMAT_RGBA64; | |
| 147 else | |
| 148 out_fmt = BPG_OUTPUT_FORMAT_RGB48; | |
| 149 } else { | |
| 150 if (img_info->has_alpha) | |
| 151 out_fmt = BPG_OUTPUT_FORMAT_RGBA32; | |
| 152 else | |
| 153 out_fmt = BPG_OUTPUT_FORMAT_RGB24; | |
| 154 } | |
|
5
524eae707ba4
Cosmetics: Remove trailing whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
155 |
| 0 | 156 bpg_decoder_start(img, out_fmt); |
| 157 | |
| 158 bpp = (3 + img_info->has_alpha) * (bit_depth / 8); | |
| 159 row_pointer = (png_bytep)png_malloc(png_ptr, img_info->width * bpp); | |
| 160 for (y = 0; y < img_info->height; y++) { | |
| 161 bpg_decoder_get_line(img, row_pointer); | |
| 162 png_write_row(png_ptr, row_pointer); | |
| 163 } | |
| 164 png_free(png_ptr, row_pointer); | |
|
5
524eae707ba4
Cosmetics: Remove trailing whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
165 |
| 0 | 166 png_write_end(png_ptr, NULL); |
|
5
524eae707ba4
Cosmetics: Remove trailing whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
167 |
| 0 | 168 png_destroy_write_struct(&png_ptr, &info_ptr); |
| 169 | |
| 170 fclose(f); | |
| 171 } | |
| 172 #endif /* USE_PNG */ | |
| 173 | |
| 33 | 174 |
| 0 | 175 static void bpg_show_info(const char *filename, int show_extensions) |
| 176 { | |
| 177 uint8_t *buf; | |
| 178 int buf_len, ret, buf_len_max; | |
| 179 FILE *f; | |
| 180 BPGImageInfo p_s, *p = &p_s; | |
| 181 BPGExtensionData *first_md, *md; | |
| 182 static const char *format_str[6] = { | |
| 183 "Gray", | |
| 184 "4:2:0", | |
| 185 "4:2:2", | |
| 186 "4:4:4", | |
| 187 "4:2:0_video", | |
| 188 "4:2:2_video", | |
| 189 }; | |
| 190 static const char *color_space_str[BPG_CS_COUNT] = { | |
| 191 "YCbCr", | |
| 192 "RGB", | |
| 193 "YCgCo", | |
| 194 "YCbCr_BT709", | |
| 195 "YCbCr_BT2020", | |
| 196 }; | |
| 197 static const char *extension_tag_str[] = { | |
| 198 "Unknown", | |
| 199 "EXIF", | |
| 200 "ICC profile", | |
| 201 "XMP", | |
| 202 "Thumbnail", | |
| 203 "Animation control", | |
| 204 }; | |
|
5
524eae707ba4
Cosmetics: Remove trailing whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
205 |
| 0 | 206 f = fopen(filename, "rb"); |
| 207 if (!f) { | |
| 208 fprintf(stderr, "Could not open %s\n", filename); | |
| 209 exit(1); | |
| 210 } | |
| 211 | |
| 212 if (show_extensions) { | |
| 213 fseek(f, 0, SEEK_END); | |
| 214 buf_len_max = ftell(f); | |
| 215 fseek(f, 0, SEEK_SET); | |
| 216 } else { | |
| 217 /* if no extension are shown, just need the header */ | |
| 218 buf_len_max = BPG_DECODER_INFO_BUF_SIZE; | |
| 219 } | |
| 220 buf = malloc(buf_len_max); | |
| 221 buf_len = fread(buf, 1, buf_len_max, f); | |
| 222 | |
| 223 ret = bpg_decoder_get_info_from_buf(p, show_extensions ? &first_md : NULL, | |
| 224 buf, buf_len); | |
| 225 free(buf); | |
| 226 fclose(f); | |
| 227 if (ret < 0) { | |
| 228 fprintf(stderr, "Not a BPG image\n"); | |
| 229 exit(1); | |
| 230 } | |
| 231 printf("size=%dx%d color_space=%s", | |
| 232 p->width, p->height, | |
| 233 p->format == BPG_FORMAT_GRAY ? "Gray" : color_space_str[p->color_space]); | |
| 234 if (p->has_w_plane) { | |
| 235 printf(" w_plane=%d", p->has_w_plane); | |
| 236 } | |
| 237 if (p->has_alpha) { | |
|
5
524eae707ba4
Cosmetics: Remove trailing whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
238 printf(" alpha=%d premul=%d", |
| 0 | 239 p->has_alpha, p->premultiplied_alpha); |
| 240 } | |
| 241 printf(" format=%s limited_range=%d bit_depth=%d animation=%d\n", | |
| 242 format_str[p->format], | |
| 243 p->limited_range, | |
| 244 p->bit_depth, | |
| 245 p->has_animation); | |
|
5
524eae707ba4
Cosmetics: Remove trailing whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
246 |
| 0 | 247 if (first_md) { |
| 248 const char *tag_name; | |
| 249 printf("Extension data:\n"); | |
| 250 for(md = first_md; md != NULL; md = md->next) { | |
|
23
d0ec05fbab88
Cleanups and warnings fixes.
Matti Hamalainen <ccr@tnsp.org>
parents:
21
diff
changeset
|
251 tag_name = (md->tag < sizeof(extension_tag_str) / sizeof(extension_tag_str[0])) ? |
|
d0ec05fbab88
Cleanups and warnings fixes.
Matti Hamalainen <ccr@tnsp.org>
parents:
21
diff
changeset
|
252 extension_tag_str[md->tag] : extension_tag_str[0]; |
|
d0ec05fbab88
Cleanups and warnings fixes.
Matti Hamalainen <ccr@tnsp.org>
parents:
21
diff
changeset
|
253 |
| 0 | 254 printf(" tag=%d (%s) length=%d\n", |
| 255 md->tag, tag_name, md->buf_len); | |
|
34
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
256 |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
257 switch (md->tag) |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
258 { |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
259 case BPG_EXTENSION_TAG_XMP: |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
260 // fwrite(md->buf, md->buf_len, 1, stderr); |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
261 break; |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
262 |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
263 #ifdef HAVE_LIBEXIF |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
264 case BPG_EXTENSION_TAG_EXIF: |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
265 { |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
266 ExifMem *exif_mem = exif_mem_new_default(); |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
267 if (exif_mem != NULL) |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
268 { |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
269 ExifData *exif = exif_data_new_mem(exif_mem); |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
270 if (exif != NULL) |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
271 { |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
272 exif_data_load_data(exif, md->buf, md->buf_len); |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
273 exif_data_fix(exif); |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
274 exif_data_dump(exif); |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
275 exif_data_free(exif); |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
276 } |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
277 } |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
278 } |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
279 break; |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
280 #endif |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
281 |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
282 default: |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
283 break; |
|
5d51fff843eb
A "commit dump" of random changes I've made, as I probably won't be touching this code anymore.
Matti Hamalainen <ccr@tnsp.org>
parents:
33
diff
changeset
|
284 } |
| 0 | 285 } |
| 286 bpg_decoder_free_extension_data(first_md); | |
| 287 } | |
| 288 } | |
| 289 | |
| 290 static void help(void) | |
| 291 { | |
| 292 printf("BPG Image Decoder version " CONFIG_BPG_VERSION "\n" | |
| 293 "usage: bpgdec [options] infile\n" | |
| 294 "Options:\n" | |
| 295 "-o outfile.[ppm|png] set the output filename (default = out.png)\n" | |
| 296 "-b bit_depth PNG output only: use bit_depth per component (8 or 16, default = 8)\n" | |
| 297 "-i display information about the image\n"); | |
| 298 exit(1); | |
| 299 } | |
| 300 | |
| 301 int main(int argc, char **argv) | |
| 302 { | |
| 303 FILE *f; | |
| 304 BPGDecoderContext *img; | |
| 305 uint8_t *buf; | |
|
23
d0ec05fbab88
Cleanups and warnings fixes.
Matti Hamalainen <ccr@tnsp.org>
parents:
21
diff
changeset
|
306 png_size_t buf_len; |
|
d0ec05fbab88
Cleanups and warnings fixes.
Matti Hamalainen <ccr@tnsp.org>
parents:
21
diff
changeset
|
307 int bit_depth, c, show_info; |
| 0 | 308 const char *outfilename, *filename, *p; |
|
5
524eae707ba4
Cosmetics: Remove trailing whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
309 |
| 0 | 310 outfilename = "out.png"; |
| 311 bit_depth = 8; | |
| 312 show_info = 0; | |
| 313 for(;;) { | |
| 314 c = getopt(argc, argv, "ho:b:i"); | |
| 315 if (c == -1) | |
| 316 break; | |
| 317 switch(c) { | |
| 318 case 'h': | |
| 319 show_help: | |
| 320 help(); | |
| 321 break; | |
| 322 case 'o': | |
| 323 outfilename = optarg; | |
| 324 break; | |
| 325 case 'b': | |
| 326 bit_depth = atoi(optarg); | |
| 327 break; | |
| 328 case 'i': | |
| 329 show_info = 1; | |
| 330 break; | |
| 331 default: | |
| 332 exit(1); | |
| 333 } | |
| 334 } | |
| 335 | |
| 336 if (optind >= argc) | |
| 337 goto show_help; | |
| 338 | |
| 339 filename = argv[optind++]; | |
| 340 | |
| 341 if (show_info) { | |
| 342 bpg_show_info(filename, 1); | |
| 343 return 0; | |
| 344 } | |
| 345 | |
| 346 f = fopen(filename, "rb"); | |
| 347 if (!f) { | |
| 348 fprintf(stderr, "Could not open %s\n", filename); | |
| 349 exit(1); | |
| 350 } | |
| 351 | |
| 352 fseek(f, 0, SEEK_END); | |
| 353 buf_len = ftell(f); | |
| 354 fseek(f, 0, SEEK_SET); | |
| 355 | |
| 356 buf = malloc(buf_len); | |
| 21 | 357 if (!buf) { |
| 358 fprintf(stderr, "Could not allocate memory for buffer.\n"); | |
| 359 exit(1); | |
| 360 } | |
| 361 | |
| 0 | 362 if (fread(buf, 1, buf_len, f) != buf_len) { |
| 363 fprintf(stderr, "Error while reading file\n"); | |
| 364 exit(1); | |
| 365 } | |
|
5
524eae707ba4
Cosmetics: Remove trailing whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
366 |
| 0 | 367 fclose(f); |
| 368 | |
| 369 img = bpg_decoder_open(); | |
| 370 | |
| 371 if (bpg_decoder_decode(img, buf, buf_len) < 0) { | |
| 372 fprintf(stderr, "Could not decode image\n"); | |
| 373 exit(1); | |
| 374 } | |
| 375 free(buf); | |
| 376 | |
| 377 #ifdef USE_PNG | |
| 378 p = strrchr(outfilename, '.'); | |
| 21 | 379 if (p && strcasecmp(p + 1, "ppm") != 0) { |
| 0 | 380 png_save(img, outfilename, bit_depth); |
|
5
524eae707ba4
Cosmetics: Remove trailing whitespace.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
381 } else |
| 0 | 382 #endif |
| 383 { | |
| 384 ppm_save(img, outfilename); | |
| 385 } | |
| 386 | |
| 387 bpg_decoder_close(img); | |
| 388 | |
| 389 return 0; | |
| 390 } |