Difference between revisions of "Truxton file create exif"
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An EXIF object is how you add records to the <code><nowiki>[</nowiki>[[EXIF Table|EXIF]]<nowiki>]</nowiki></code> table. | An EXIF object is how you add records to the <code><nowiki>[</nowiki>[[EXIF Table|EXIF]]<nowiki>]</nowiki></code> table. | ||
The resulting EXIF object will automatically be associated with the file it was created from and with the media the file belongs to. | The resulting EXIF object will automatically be associated with the file it was created from and with the media the file belongs to. | ||
| − | |||
'''Note:''' Not all camera information comes from [https://en.wikipedia.org/wiki/Exif EXIF] sections. | '''Note:''' Not all camera information comes from [https://en.wikipedia.org/wiki/Exif EXIF] sections. | ||
Camera information can be exploited from anywhere in the file but the meta data will be stored in the <code><nowiki>[</nowiki>[[EXIF Table|EXIF]]<nowiki>]</nowiki></code> table. | Camera information can be exploited from anywhere in the file but the meta data will be stored in the <code><nowiki>[</nowiki>[[EXIF Table|EXIF]]<nowiki>]</nowiki></code> table. | ||
| + | [https://en.wikipedia.org/wiki/Extensible_Metadata_Platform XMP] is an example of this. | ||
| + | |||
=Syntax= | =Syntax= | ||
<source lang="C"> | <source lang="C"> | ||
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=Sample= | =Sample= | ||
<source lang="C" highlight="5"> | <source lang="C" highlight="5"> | ||
| − | void process_file(uint64_t truxton) | + | void process_file( uint64_t truxton ) |
{ | { | ||
| − | uint64_t file = truxton_file_open_md5(truxton, "9ec8fb6095c35eff2b236863b7caaf10"); | + | uint64_t file = truxton_file_open_md5( truxton, "9ec8fb6095c35eff2b236863b7caaf10" ); |
| − | uint64_t exif = truxton_file_create_exif(file); | + | uint64_t exif = truxton_file_create_exif( file ); |
| − | truxton_exif_set_make(exif, "Ford"); | + | truxton_exif_set_make( exif, "Ford" ); |
| − | truxton_exif_set_model(exif, "Mustang"); | + | truxton_exif_set_model( exif, "Mustang" ); |
| − | truxton_exif_set_device_time(exif, truxton_file_get_modified( file ) ); | + | truxton_exif_set_device_time( exif, truxton_file_get_modified( file ) ); |
| − | truxton_exif_set_latitude(exif, 27.94999); | + | truxton_exif_set_latitude( exif, 27.94999 ); |
| − | truxton_exif_set_longitude(exif, -82.354748); | + | truxton_exif_set_longitude( exif, -82.354748 ); |
| − | truxton_exif_save(exif); | + | truxton_exif_save( exif ); |
| − | truxton_exif_destroy(exif); | + | truxton_exif_destroy( exif ); |
| − | truxton_file_free(file); | + | truxton_file_free( file ); |
} | } | ||
</source> | </source> | ||
Latest revision as of 04:56, 13 February 2021
This creates an EXIF object sourced from this file that you can use in the EXIF API.
An EXIF object is how you add records to the [EXIF] table.
The resulting EXIF object will automatically be associated with the file it was created from and with the media the file belongs to.
Note: Not all camera information comes from EXIF sections.
Camera information can be exploited from anywhere in the file but the meta data will be stored in the [EXIF] table.
XMP is an example of this.
Syntax
uint64_t truxton_file_create_exif( uint64_t file_handle );
Parameters
file_handle
The handle created by the truxton_file_open_id or truxton_file_open_md5 call.
Return value
A handle to an EXIF object.
Sample
void process_file( uint64_t truxton )
{
uint64_t file = truxton_file_open_md5( truxton, "9ec8fb6095c35eff2b236863b7caaf10" );
uint64_t exif = truxton_file_create_exif( file );
truxton_exif_set_make( exif, "Ford" );
truxton_exif_set_model( exif, "Mustang" );
truxton_exif_set_device_time( exif, truxton_file_get_modified( file ) );
truxton_exif_set_latitude( exif, 27.94999 );
truxton_exif_set_longitude( exif, -82.354748 );
truxton_exif_save( exif );
truxton_exif_destroy( exif );
truxton_file_free( file );
}
