4 * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
6 * Contact: Jeongmo Yang <jm80.yang@samsung.com>
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
22 #include "mm_camcorder_exifinfo.h"
23 #include "mm_camcorder_exifdef.h"
24 #include "mm_camcorder_internal.h"
26 #include <libexif/exif-loader.h>
27 #include <libexif/exif-utils.h>
28 #include <libexif/exif-data.h>
35 #define MM_EXIFINFO_USE_BINARY_EXIFDATA 1
36 #define JPEG_MAX_SIZE 20000000
37 #define JPEG_THUMBNAIL_MAX_SIZE (128*1024)
38 #define JPEG_DATA_OFFSET 2
39 #define JPEG_EXIF_OFFSET 4
40 #define EXIF_MARKER_SOI_LENGTH 2
41 #define EXIF_MARKER_APP1_LENGTH 2
42 #define EXIF_APP1_LENGTH 2
45 #if MM_EXIFINFO_USE_BINARY_EXIFDATA
50 #define _EXIF_BIN_SIZE_ ((unsigned int)174)
51 unsigned char g_exif_bin[_EXIF_BIN_SIZE_] = {
52 0x45 , 0x78 , 0x69 , 0x66 , 0x00 , 0x00 , 0x49 , 0x49 , 0x2a , 0x00 , 0x08 , 0x00 , 0x00 , 0x00 , 0x05 , 0x00 ,
53 0x1a , 0x01 , 0x05 , 0x00 , 0x01 , 0x00 , 0x00 , 0x00 , 0x4a , 0x00 , 0x00 , 0x00 , 0x1b , 0x01 , 0x05 , 0x00 ,
54 0x01 , 0x00 , 0x00 , 0x00 , 0x52 , 0x00 , 0x00 , 0x00 , 0x28 , 0x01 , 0x03 , 0x00 , 0x01 , 0x00 , 0x00 , 0x00 ,
55 0x02 , 0x00 , 0x00 , 0x00 , 0x13 , 0x02 , 0x03 , 0x00 , 0x01 , 0x00 , 0x00 , 0x00 , 0x01 , 0x00 , 0x00 , 0x00 ,
56 0x69 , 0x87 , 0x04 , 0x00 , 0x01 , 0x00 , 0x00 , 0x00 , 0x5a , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 ,
57 0x48 , 0x00 , 0x00 , 0x00 , 0x01 , 0x00 , 0x00 , 0x00 , 0x48 , 0x00 , 0x00 , 0x00 , 0x01 , 0x00 , 0x00 , 0x00 ,
58 0x06 , 0x00 , 0x00 , 0x90 , 0x07 , 0x00 , 0x04 , 0x00 , 0x00 , 0x00 , 0x30 , 0x32 , 0x31 , 0x30 , 0x01 , 0x91 ,
59 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0xa0 , 0x07 , 0x00 , 0x04 , 0x00 ,
60 0x00 , 0x00 , 0x30 , 0x31 , 0x30 , 0x30 , 0x01 , 0xa0 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 ,
61 0x00 , 0x00 , 0x02 , 0xa0 , 0x04 , 0x00 , 0x01 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x03 , 0xa0 ,
62 0x04 , 0x00 , 0x01 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00
67 * Structure for exif entry.
69 typedef struct _mm_exif_entry_t {
70 ExifTag tag; /**< exif tag*/
71 ExifFormat format; /**< exif format*/
72 unsigned long components; /**< number of components*/
73 unsigned char *data; /**< data*/
74 unsigned int size; /**< size of data*/
82 _exif_set_uint16(int is_motorola, void * out, unsigned short in)
85 ((unsigned char *)out)[0] = in & 0x00ff;
86 ((unsigned char *)out)[1] = in >> 8;
88 ((unsigned char *)out)[0] = in >> 8;
89 ((unsigned char *)out)[1] = in & 0x00ff;
94 #ifdef _MMCAMCORDER_EXIF_GET_JPEG_MARKER_OFFSET
96 _exif_get_jpeg_marker_offset(void *jpeg, int jpeg_size, unsigned short marker)
98 unsigned char *p = NULL;
99 unsigned char *src = jpeg;
100 int src_sz = jpeg_size;
106 m[1] = marker & 0x00FF;
108 _mmcam_dbg_log("marker: 0x%02X 0x%02X", m[0], m[1]);
110 if (*src == 0xff && *(src + 1) == 0xd8) {
111 p = src + 2; /* SOI(start of image) */
113 _mmcam_dbg_log("invalid JPEG file.");
117 for (i = 0; i < src_sz - (1 + 2); i++, p++) {
120 if (*(p + 1) == m[1]) {
122 _mmcam_dbg_log("marker offset: %lu %p %p.", ret, (p+1), src);
127 _mmcam_dbg_log("Marker not found.");
130 #endif /* _MMCAMCORDER_EXIF_GET_JPEG_MARKER_OFFSET */
134 mm_exif_get_exif_data_from_data(mm_exif_info_t *info)
138 ed = exif_data_new_from_data(info->data, info->size);
140 _mmcam_dbg_log("Null exif data. (ed:%p)", ed);
147 mm_exif_get_exif_from_info(mm_exif_info_t *info)
150 ExifLoader *loader = NULL;
152 unsigned char size[2];
156 _mmcam_dbg_err("NULL exif info");
160 /*get ExifData from info*/
161 loader = exif_loader_new();
163 size[0] = (unsigned char) (info->size);
164 size[1] = (unsigned char) (info->size >> 8);
165 exif_loader_write(loader, size, 2);
167 for (i = 0; i < info->size && exif_loader_write(loader, (unsigned char *)(info->data) + i, 1); i++);
169 ed = exif_loader_get_data(loader);
170 exif_loader_unref(loader);
176 mm_exif_set_exif_to_info(mm_exif_info_t *info, ExifData *exif)
178 unsigned char *eb = NULL;
182 _mmcam_dbg_log("exif Null");
183 return MM_ERROR_CAMCORDER_NOT_INITIALIZED;
186 _mmcam_dbg_log("exif(ifd :%p)", exif->ifd);
194 exif_data_save_data(exif, &eb, &ebs);
196 _mmcam_dbg_log("MM_ERROR_CAMCORDER_LOW_MEMORY");
197 return MM_ERROR_CAMCORDER_LOW_MEMORY;
201 return MM_ERROR_NONE;
206 mm_exif_set_add_entry(ExifData *exif, ExifIfd ifd, ExifTag tag, ExifFormat format, unsigned long components, const char* data)
208 ExifData *ed = (ExifData *)exif;
211 if (exif == NULL || format <= 0 || components <= 0 || data == NULL) {
212 _mmcam_dbg_err("invalid argument exif=%p format=%d, components=%lu data=%p!",
213 exif, format, components, data);
214 return MM_ERROR_CAMCORDER_INVALID_ARGUMENT;
217 /*remove same tag in EXIF*/
218 exif_content_remove_entry(ed->ifd[ifd], exif_content_get_entry(ed->ifd[ifd], tag));
221 e = exif_entry_new();
223 _mmcam_dbg_err("entry create error!");
224 return MM_ERROR_CAMCORDER_LOW_MEMORY;
227 exif_entry_initialize(e, tag);
231 e->components = components;
235 e->data = malloc(exif_format_get_size(format) * e->components);
238 return MM_ERROR_CAMCORDER_LOW_MEMORY;
241 if (format == EXIF_FORMAT_ASCII)
242 memset(e->data, '\0', exif_format_get_size(format) * e->components);
245 e->size = exif_format_get_size(format) * e->components;
246 memcpy(e->data, data, e->size);
247 exif_content_add_entry(ed->ifd[ifd], e);
250 return MM_ERROR_NONE;
262 mm_exif_create_exif_info(mm_exif_info_t **info)
264 mm_exif_info_t *x = NULL;
265 #if (MM_EXIFINFO_USE_BINARY_EXIFDATA == 0)
267 unsigned char *eb = NULL;
273 _mmcam_dbg_err("NULL pointer");
274 return MM_ERROR_CAMCORDER_INVALID_ARGUMENT;
277 x = malloc(sizeof(mm_exif_info_t));
279 _mmcam_dbg_err("malloc error");
280 return MM_ERROR_CAMCORDER_LOW_MEMORY;
282 #if MM_EXIFINFO_USE_BINARY_EXIFDATA
284 x->data = malloc(_EXIF_BIN_SIZE_);
286 _mmcam_dbg_err("malloc error");
288 return MM_ERROR_CAMCORDER_LOW_MEMORY;
290 memcpy(x->data, g_exif_bin, _EXIF_BIN_SIZE_);
291 x->size = _EXIF_BIN_SIZE_;
293 ed = exif_data_new();
295 _mmcam_dbg_err("exif data new error");
297 return MM_ERROR_CAMCORDER_LOW_MEMORY;
300 exif_data_set_byte_order(ed, EXIF_BYTE_ORDER_INTEL);
301 exif_data_set_data_type(ed, EXIF_DATA_TYPE_COMPRESSED);
302 exif_data_set_option(ed, EXIF_DATA_OPTION_FOLLOW_SPECIFICATION);
306 exif_data_save_data(ed, &eb, &ebs);
308 _mmcam_dbg_err("exif_data_save_data error");
311 return MM_ERROR_CAMCORDER_INTERNAL;
320 _mmcam_dbg_log("Data:%p Size:%d", x->data, x->size);
322 return MM_ERROR_NONE;
326 mm_exif_destory_exif_info(mm_exif_info_t *info)
328 /* _mmcam_dbg_log( ""); */
338 mm_exif_add_thumbnail_info(mm_exif_info_t *info, void *thumbnail, int width, int height, int len)
341 static ExifLong elong[10];
343 unsigned char *p_compressed = NULL;
344 int ret = MM_ERROR_NONE;
347 _mmcam_dbg_log("Thumbnail size:%d, width:%d, height:%d", len, width, height);
349 if (len > JPEG_THUMBNAIL_MAX_SIZE) {
350 _mmcam_dbg_err("Thumbnail size[%d] over!!! Skip inserting thumbnail...", len);
351 return MM_ERROR_NONE;
354 /* get ExifData from info*/
355 ed = mm_exif_get_exif_from_info(info);
357 _mmcam_dbg_err("mm_exif_get_exif_from_info failed");
358 return MM_ERROR_CAMCORDER_INTERNAL;
361 ed->data = thumbnail;
364 /* set thumbnail data */
365 p_compressed = (unsigned char *)malloc(sizeof(ExifShort));
366 if (p_compressed != NULL) {
367 exif_set_short(p_compressed, exif_data_get_byte_order(ed), 6);
368 ret = mm_exif_set_add_entry(ed, EXIF_IFD_1, EXIF_TAG_COMPRESSION, EXIF_FORMAT_SHORT, 1, (const char *)p_compressed);
369 if (ret != MM_ERROR_NONE)
372 ret = MM_ERROR_CAMCORDER_LOW_MEMORY;
376 /* set thumbnail size */
377 exif_set_long((unsigned char *)&elong[cntl], exif_data_get_byte_order(ed), width);
378 ret = mm_exif_set_add_entry(ed, EXIF_IFD_1, EXIF_TAG_IMAGE_WIDTH, EXIF_FORMAT_LONG, 1, (const char *)&elong[cntl++]);
379 if (ret != MM_ERROR_NONE)
382 exif_set_long((unsigned char *)&elong[cntl], exif_data_get_byte_order(ed), height);
383 ret = mm_exif_set_add_entry(ed, EXIF_IFD_1, EXIF_TAG_IMAGE_LENGTH, EXIF_FORMAT_LONG, 1, (const char *)&elong[cntl++]);
384 if (ret != MM_ERROR_NONE)
387 ret = mm_exif_set_exif_to_info(info, ed);
388 if (ret != MM_ERROR_NONE)
396 if (p_compressed != NULL)
404 mm_exif_write_exif_jpeg_to_memory(void **mem, unsigned int *length, mm_exif_info_t *info, unsigned char *jpeg, unsigned int jpeg_len)
406 unsigned short head[2] = {0,};
407 unsigned short head_len = 0;
408 unsigned char *eb = NULL;
410 int jpeg_offset = JPEG_DATA_OFFSET;
411 mm_exif_info_t *test_exif_info = NULL;
414 unsigned char *m = NULL;
419 if (info == NULL || jpeg == NULL) {
420 _mmcam_dbg_err("MM_ERROR_CAMCORDER_INVALID_ARGUMENT info=%p, jpeg=%p", info, jpeg);
421 return MM_ERROR_CAMCORDER_INVALID_ARGUMENT;
424 if (jpeg_len > JPEG_MAX_SIZE) {
425 _mmcam_dbg_err("jpeg_len is worng jpeg_len=%d", jpeg_len);
426 return MM_ERROR_CAMCORDER_DEVICE_WRONG_JPEG;
432 /* check EXIF in JPEG */
433 if (mm_exif_load_exif_info(&test_exif_info, jpeg, jpeg_len) == MM_ERROR_NONE) {
434 if (test_exif_info) {
435 jpeg_offset = test_exif_info->size + JPEG_EXIF_OFFSET;
436 if (test_exif_info->data) {
437 free(test_exif_info->data);
438 test_exif_info->data = NULL;
440 free(test_exif_info);
441 test_exif_info = NULL;
443 _mmcam_dbg_err("test_exif_info is NULL");
446 _mmcam_dbg_warn("no EXIF in JPEG");
449 /*length of output image*/
450 /*SOI + APP1 + length of APP1 + length of EXIF + IMAGE*/
451 m_len = EXIF_MARKER_SOI_LENGTH + EXIF_MARKER_APP1_LENGTH + EXIF_APP1_LENGTH + ebs + (jpeg_len - jpeg_offset);
452 /*alloc output image*/
455 _mmcam_dbg_err("malloc() failed.");
456 return MM_ERROR_CAMCORDER_LOW_MEMORY;
460 _exif_set_uint16(0, &head[0], 0xffd8);
461 _exif_set_uint16(0, &head[1], 0xffe1);
462 /*set header length*/
463 _exif_set_uint16(0, &head_len, (unsigned short)(ebs + 2));
464 if (head[0] == 0 || head[1] == 0 || head_len == 0) {
465 _mmcam_dbg_err("setting error");
467 return MM_ERROR_CAMCORDER_INVALID_ARGUMENT;
470 /* Complete JPEG+EXIF */
472 memcpy(m, &head[0], EXIF_MARKER_SOI_LENGTH);
475 memcpy(m + EXIF_MARKER_SOI_LENGTH, &head[1], EXIF_MARKER_APP1_LENGTH);
478 memcpy(m + EXIF_MARKER_SOI_LENGTH + EXIF_MARKER_APP1_LENGTH, &head_len, EXIF_APP1_LENGTH);
481 memcpy(m + EXIF_MARKER_SOI_LENGTH + EXIF_MARKER_APP1_LENGTH + EXIF_APP1_LENGTH, eb, ebs);
484 memcpy(m + EXIF_MARKER_SOI_LENGTH + EXIF_MARKER_APP1_LENGTH + EXIF_APP1_LENGTH + ebs,
485 jpeg + jpeg_offset, jpeg_len - jpeg_offset);
487 _mmcam_dbg_log("JPEG+EXIF Copy DONE(original:%d, offset:%d, copied:%d)",
488 jpeg_len, jpeg_offset, jpeg_len - jpeg_offset);
494 return MM_ERROR_NONE;
498 int mm_exif_load_exif_info(mm_exif_info_t **info, void *jpeg_data, int jpeg_length)
500 ExifLoader *loader = NULL;
501 const unsigned char *b = NULL;
503 mm_exif_info_t *x = NULL;
505 /* TODO : get exif and re-set exif */
507 loader = exif_loader_new();
509 exif_loader_write(loader, jpeg_data, jpeg_length);
510 exif_loader_get_buf(loader, &b, &s);
512 x = malloc(sizeof(mm_exif_info_t));
516 memcpy((char*)x->data, b, s);
519 _mmcam_dbg_warn("load EXIF : data %p, size %d", x->data, x->size);
521 _mmcam_dbg_err("mm_exif_info_t malloc failed");
523 exif_loader_unref(loader);
525 return MM_ERROR_CAMCORDER_LOW_MEMORY;
528 _mmcam_dbg_err("mm_exif_info_t malloc failed");
531 _mmcam_dbg_err("exif_loader_get_buf failed");
534 /* The loader is no longer needed--free it */
535 exif_loader_unref(loader);
538 _mmcam_dbg_err("exif_loader_new failed");
542 return MM_ERROR_NONE;
544 return MM_ERROR_CAMCORDER_INTERNAL;