| EXIF library (libexif) API 0.6.21 | 
Defines the ExifLoader type. More...
#include <libexif/exif-data.h>#include <libexif/exif-log.h>#include <libexif/exif-mem.h>Go to the source code of this file.
| Typedefs | |
| typedef struct _ExifLoader | ExifLoader | 
| Data used by the loader interface. | |
| Functions | |
| ExifLoader * | exif_loader_new (void) | 
| Allocate a new ExifLoader. | |
| ExifLoader * | exif_loader_new_mem (ExifMem *mem) | 
| Allocate a new ExifLoader using the specified memory allocator. | |
| void | exif_loader_ref (ExifLoader *loader) | 
| Increase the refcount of the ExifLoader. | |
| void | exif_loader_unref (ExifLoader *loader) | 
| Decrease the refcount of the ExifLoader. | |
| void | exif_loader_write_file (ExifLoader *loader, const char *fname) | 
| Load a file into the given ExifLoader from the filesystem. | |
| unsigned char | exif_loader_write (ExifLoader *loader, unsigned char *buf, unsigned int sz) | 
| Load a buffer into the ExifLoader from a memory buffer. | |
| void | exif_loader_reset (ExifLoader *loader) | 
| Free any data previously loaded and reset the ExifLoader to its newly-initialized state. | |
| ExifData * | exif_loader_get_data (ExifLoader *loader) | 
| Create an ExifData from the data in the loader. | |
| void | exif_loader_get_buf (ExifLoader *loader, const unsigned char **buf, unsigned int *buf_size) | 
| Return the raw data read by the loader. | |
| void | exif_loader_log (ExifLoader *loader, ExifLog *log) | 
| Set the log message object used by this ExifLoader. | |
Defines the ExifLoader type.
| void exif_loader_get_buf | ( | ExifLoader * | loader, | 
| const unsigned char ** | buf, | ||
| unsigned int * | buf_size | ||
| ) | 
Return the raw data read by the loader.
The returned pointer is only guaranteed to be valid until the next call to a function modifying this ExifLoader. Either or both of buf and buf_size may be NULL on entry, in which case that value is not returned.
| [in] | loader | the loader | 
| [out] | buf | read-only pointer to the data read by the loader, or NULL in case of error | 
| [out] | buf_size | size of the data at buf, or 0 in case of error | 
| ExifData* exif_loader_get_data | ( | ExifLoader * | loader | ) | 
Create an ExifData from the data in the loader.
The loader must already contain data from a previous call to exif_loader_write_file or exif_loader_write.
| [in] | loader | the loader | 
| void exif_loader_log | ( | ExifLoader * | loader, | 
| ExifLog * | log | ||
| ) | 
Set the log message object used by this ExifLoader.
| [in] | loader | the loader | 
| [in] | log | ExifLog | 
| ExifLoader* exif_loader_new | ( | void | ) | 
Allocate a new ExifLoader.
| ExifLoader* exif_loader_new_mem | ( | ExifMem * | mem | ) | 
Allocate a new ExifLoader using the specified memory allocator.
| [in] | mem | the ExifMem | 
| void exif_loader_ref | ( | ExifLoader * | loader | ) | 
Increase the refcount of the ExifLoader.
| [in] | loader | the ExifLoader to increase the refcount of. | 
| void exif_loader_reset | ( | ExifLoader * | loader | ) | 
Free any data previously loaded and reset the ExifLoader to its newly-initialized state.
| [in] | loader | the loader | 
| void exif_loader_unref | ( | ExifLoader * | loader | ) | 
Decrease the refcount of the ExifLoader.
If the refcount reaches 0, the loader is freed.
| [in] | loader | ExifLoader for which to decrease the refcount | 
| unsigned char exif_loader_write | ( | ExifLoader * | loader, | 
| unsigned char * | buf, | ||
| unsigned int | sz | ||
| ) | 
Load a buffer into the ExifLoader from a memory buffer.
The relevant data is copied in raw form into the ExifLoader.
| [in] | loader | loader to write to | 
| [in] | buf | buffer to read from | 
| [in] | sz | size of the buffer | 
| void exif_loader_write_file | ( | ExifLoader * | loader, | 
| const char * | fname | ||
| ) | 
Load a file into the given ExifLoader from the filesystem.
The relevant data is copied in raw form into the ExifLoader.
| [in] | loader | loader to write to | 
| [in] | fname | path to the file to read |