input_info_reader Class Reference
#include <input.h>
Inheritance diagram for input_info_reader:
Public Types | |
| typedef input_info_reader | t_interface |
| typedef service_base | t_interface_parent |
Public Member Functions | |
| virtual t_uint32 | get_subsong_count ()=0 |
| virtual t_uint32 | get_subsong (t_uint32 p_index)=0 |
| virtual void | get_info (t_uint32 p_subsong, file_info &p_info, abort_callback &p_abort)=0 |
| virtual t_filestats | get_file_stats (abort_callback &p_abort)=0 |
| Retrieves file stats. Equivalent to calling get_stats() on file object. | |
Static Public Attributes | |
| static const GUID | class_guid |
Detailed Description
Class providing interface for retrieval of information (metadata, duration, replaygain, other tech infos) from files. Also see: file_info.Instantiating: see input_entry.
Implementing: see input_impl.
Member Typedef Documentation
Reimplemented in input_decoder, and input_info_writer.
Member Function Documentation
| virtual t_uint32 input_info_reader::get_subsong_count | ( | ) | [pure virtual] |
Retrieves count of subsongs in the file. 1 for non-multisubsong-enabled inputs. Note: multi-subsong handling is disabled for remote files (see: filesystem::is_remote) for performance reasons. Remote files are always assumed to be single-subsong, with null index.
Retrieves identifier of specified subsong; this identifier is meant to be used in playable_location as well as a parameter for input_info_reader::get_info().
- Parameters:
-
p_index Index of subsong to query. Must be >=0 and < get_subsong_count().
| virtual void input_info_reader::get_info | ( | t_uint32 | p_subsong, | |
| file_info & | p_info, | |||
| abort_callback & | p_abort | |||
| ) | [pure virtual] |
Retrieves information about specified subsong.
- Parameters:
-
p_subsong Identifier of the subsong to query. See: input_info_reader::get_subsong(), playable_location. p_info file_info object to fill. Must be empty on entry. p_abort abort_callback object signaling user aborting the operation.
| virtual t_filestats input_info_reader::get_file_stats | ( | abort_callback & | p_abort | ) | [pure virtual] |
Retrieves file stats. Equivalent to calling get_stats() on file object.
Member Data Documentation
const GUID input_info_reader::class_guid [static] |
Initial value:
{ 0x8e9bb1d4, 0xa52b, 0x4df6, { 0xa9, 0x29, 0x1a, 0xae, 0x40, 0x75, 0x38, 0x8a } }
Reimplemented in input_decoder, and input_info_writer.
The documentation for this class was generated from the following files:
