libgphoto2 photo camera library (libgphoto2) API 2.5.2

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gphoto2-file.h
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1
26 #ifndef __GPHOTO2_FILE_H__
27 #define __GPHOTO2_FILE_H__
28
29 #include <time.h>
30 #include <stdint.h>
31
32 #ifdef __cplusplus
33 extern "C" {
34 #endif /* __cplusplus */
35
36 #define GP_MIME_WAV "audio/wav"
37 #define GP_MIME_RAW "image/x-raw"
38 #define GP_MIME_PNG "image/png"
39 #define GP_MIME_PGM "image/x-portable-graymap"
40 #define GP_MIME_PPM "image/x-portable-pixmap"
41 #define GP_MIME_PNM "image/x-portable-anymap"
42 #define GP_MIME_JPEG "image/jpeg"
43 #define GP_MIME_TIFF "image/tiff"
44 #define GP_MIME_BMP "image/bmp"
45 #define GP_MIME_QUICKTIME "video/quicktime"
46 #define GP_MIME_AVI "video/x-msvideo"
47 #define GP_MIME_CRW "image/x-canon-raw"
48 #define GP_MIME_CR2 "image/x-canon-cr2"
49 #define GP_MIME_UNKNOWN "application/octet-stream"
50 #define GP_MIME_EXIF "application/x-exif"
51 #define GP_MIME_MP3 "audio/mpeg"
52 #define GP_MIME_OGG "application/ogg"
53 #define GP_MIME_WMA "audio/x-wma"
54 #define GP_MIME_ASF "audio/x-asf"
55 #define GP_MIME_MPEG "video/mpeg"
56 #define GP_MIME_AVCHD "video/mp2t"
57 #define GP_MIME_RW2 "image/x-panasonic-raw2"
58
69 typedef enum {
70 GP_FILE_TYPE_PREVIEW,
71 GP_FILE_TYPE_NORMAL,
72 GP_FILE_TYPE_RAW,
75 GP_FILE_TYPE_AUDIO,
76 GP_FILE_TYPE_EXIF,
77 GP_FILE_TYPE_METADATA
78 } CameraFileType;
79
86 typedef enum {
87 GP_FILE_ACCESSTYPE_MEMORY,
88 GP_FILE_ACCESSTYPE_FD,
89 GP_FILE_ACCESSTYPE_HANDLER
90 } CameraFileAccessType;
91
92 /* FIXME: api might be unstable. function return gphoto results codes. */
93 typedef struct _CameraFileHandler {
94 int (*size) (void*priv, uint64_t *size); /* only for read? */
95 int (*read) (void*priv, unsigned char *data, uint64_t *len);
96 int (*write) (void*priv, unsigned char *data, uint64_t *len);
97 /* FIXME: should we have both read/write methods? */
98 /* FIXME: how to finish method, due to LRU it might be longlived. */
99 } CameraFileHandler;
100
107 typedef struct _CameraFile CameraFile;
108
109 int gp_file_new (CameraFile **file);
110 int gp_file_new_from_fd (CameraFile **file, int fd);
111 int gp_file_new_from_handler (CameraFile **file, CameraFileHandler *handler, void*priv);
112 int gp_file_ref (CameraFile *file);
113 int gp_file_unref (CameraFile *file);
114 int gp_file_free (CameraFile *file);
115
116 int gp_file_set_name (CameraFile *file, const char *name);
117 int gp_file_get_name (CameraFile *file, const char **name);
118
119 int gp_file_set_mime_type (CameraFile *file, const char *mime_type);
120 int gp_file_get_mime_type (CameraFile *file, const char **mime_type);
121
122 int gp_file_set_mtime (CameraFile *file, time_t mtime);
123 int gp_file_get_mtime (CameraFile *file, time_t *mtime);
124
125 int gp_file_detect_mime_type (CameraFile *file);
126 int gp_file_adjust_name_for_mime_type (CameraFile *file);
127 int gp_file_get_name_by_type (CameraFile *file, const char *basename, CameraFileType type, char **newname);
128
129 int gp_file_set_data_and_size (CameraFile*, char *data,
130 unsigned long int size);
131 int gp_file_get_data_and_size (CameraFile*, const char **data,
132 unsigned long int *size);
133 /* "Do not use those"
134 *
135 * These functions probably were originally intended for internal use only.
136 * However, due to
137 * - the lack of good documentation
138 * - this being the obvious way to save a file
139 * - the fact that libgphoto2 has been exporting all its internal
140 * symbols for years (until 2005-06)
141 * - our in-house frontends gphoto2 and gtkam using them
142 * a number of external frontends started to use these functions, as
143 * of 2005-06:
144 * - digikam
145 * - f-spot
146 * - gthumb
147 * But a few frontends can live without it (and thus are likely to
148 * use the correct API):
149 * - flphoto
150 * - kamera
151 *
152 * So we're going to phase these functions out over the next year or
153 * so, going the GTK way of keeping the ABI but breaking the API. So
154 * we'll continue to export functionally equivalent functions, but the
155 * header files will not contain definitions for you to use any more.
156 */
157 int gp_file_open (CameraFile *file, const char *filename);
158 int gp_file_save (CameraFile *file, const char *filename);
159 int gp_file_clean (CameraFile *file);
160 int gp_file_copy (CameraFile *destination, CameraFile *source);
161
162
163 /* These are for use by camera drivers only */
164 int gp_file_append (CameraFile*, const char *data,
165 unsigned long int size);
166 int gp_file_slurp (CameraFile*, char *data,
167 size_t size, size_t *readlen);
168
169 #ifdef __cplusplus
170 }
171 #endif /* __cplusplus */
172
173 #endif /* __GPHOTO2_FILE_H__ */