libannodex
0.7.3
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Go to the source code of this file.
Data Structures | |
struct | _AnxImporter |
struct | _AnxSourceTrack |
struct | _AnxSource |
Typedefs | |
typedef struct _AnxImporter | AnxImporter |
An AnxImporter implements generic functions for retrieving data from sources of a particular content type. | |
typedef struct _AnxSourceTrack | AnxSourceTrack |
An AnxSourceTrack contains one track of data. | |
typedef struct _AnxSource | AnxSource |
An AnxSource contains an instance of an active source object, which may in turn contain several tracks. | |
typedef AnxSource *(* | AnxImporterOpenFunc) (const char *path, const char *id, int ignore_raw, double start_time, double end_time, AnxImportCallbacks *import_callbacks) |
Signature of a function for opening a source object by filename. More... | |
typedef AnxSource *(* | AnxImporterOpenFDFunc) (int fd, const char *id, int ignore_raw, double start_time, double end_time, AnxImportCallbacks *import_callbacks) |
Signature of a function for opening a source object attached to an open file descriptor. More... | |
typedef long(* | AnxImporterReadFunc) (AnxSource *source, unsigned char *buf, long n, long bound) |
Signature of a function for reading bytes from a source object. More... | |
typedef long(* | AnxImporterSizeofNextReadFunc) (AnxSource *source, long bound) |
Signature of a function to return the preferred next read size. More... | |
typedef int(* | AnxImporterCloseFunc) (AnxSource *source) |
Signature of a function to close a source object. More... | |
Functions | |
int | anx_importer_register (AnxImporter *importer) |
Register an AnxImporter object with libannodex. More... | |
int | anx_importer_unregister (AnxImporter *importer) |
Unregister an AnxImporter previously registered with libannodex. More... | |
AnxImporter * | anx_importer_find (char *content_type) |
Find the AnxImporter registered with the given content type. More... | |
Specification of AnxImporter
Backends must implement the following function:
Importers are accessed by index i using values from 0 upwards. For out of range indexes, this function must return NULL.
No other symbols in a backend should be visible (ie. declare all other globals and functions as static).
typedef int(* AnxImporterCloseFunc) (AnxSource *source) |
Signature of a function to close a source object.
source | an AnxSource* handle |
typedef AnxSource*(* AnxImporterOpenFDFunc) (int fd, const char *id, int ignore_raw, double start_time, double end_time, AnxImportCallbacks *import_callbacks) |
Signature of a function for opening a source object attached to an open file descriptor.
fd | an open file descriptor |
id | the id of this |
ignore_raw | a flag to indicate that the importer should ignore any raw source read requests, ie. just deliver clips |
start_time | the start time to initially seek to |
end_time | a time bound to end on |
import_callbacks | callbacks to call when further importing or anchor inserting is required. |
typedef AnxSource*(* AnxImporterOpenFunc) (const char *path, const char *id, int ignore_raw, double start_time, double end_time, AnxImportCallbacks *import_callbacks) |
Signature of a function for opening a source object by filename.
path | the path to the source file |
id | the id of this |
ignore_raw | a flag to indicate that the importer should ignore any raw source read requests, ie. just deliver clips |
start_time | the start time to initially seek to |
end_time | a time bound to end on |
import_callbacks | callbacks to call when further importing or anchor inserting is required. |
typedef long(* AnxImporterReadFunc) (AnxSource *source, unsigned char *buf, long n, long bound) |
Signature of a function for reading bytes from a source object.
source | an AnxSource * handle |
buf | a buffer to read data into |
n | a maximum number of bytes to read |
bound | a maximum granulecount to read |
typedef long(* AnxImporterSizeofNextReadFunc) (AnxSource *source, long bound) |
Signature of a function to return the preferred next read size.
source | an AnxSource * handle |
bound | a maximum granulecount to read |
AnxImporter* anx_importer_find | ( | char * | content_type | ) |
Find the AnxImporter registered with the given content type.
content_type | the content type |
int anx_importer_register | ( | AnxImporter * | importer | ) |
Register an AnxImporter object with libannodex.
importer | the importer |
int anx_importer_unregister | ( | AnxImporter * | importer | ) |
Unregister an AnxImporter previously registered with libannodex.
importer | the importer |