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Yate
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An unidirectional data translator (codec) More...
#include <yatephone.h>
Public Member Functions | |
| DataTranslator (const char *sFormat, const char *dFormat) | |
| DataTranslator (const char *sFormat, DataSource *source=0) | |
| ~DataTranslator () | |
| virtual void * | getObject (const String &name) const |
| virtual bool | valid () const |
| virtual DataSource * | getTransSource () const |
| DataTranslator * | getFirstTranslator () |
| const DataTranslator * | getFirstTranslator () const |
Public Member Functions inherited from DataConsumer | |
| DataConsumer (const char *format="slin") | |
| virtual void | destroyed () |
| virtual unsigned long | Consume (const DataBlock &data, unsigned long tStamp, unsigned long flags)=0 |
| DataSource * | getConnSource () const |
| DataSource * | getOverSource () const |
Public Member Functions inherited from DataNode | |
| DataNode (const char *format=0) | |
| virtual int | costFormat (const DataFormat &format) |
| virtual bool | setFormat (const DataFormat &format) |
| const DataFormat & | getFormat () const |
| unsigned long | timeStamp () const |
| virtual bool | control (NamedList ¶ms) |
| virtual void | attached (bool added) |
Public Member Functions inherited from RefObject | |
| RefObject () | |
| virtual | ~RefObject () |
| virtual bool | alive () const |
| bool | ref () |
| bool | deref () |
| int | refcount () const |
| virtual void | destruct () |
Public Member Functions inherited from GenObject | |
| GenObject () | |
| virtual | ~GenObject () |
| virtual const String & | toString () const |
| virtual const String & | traceId () const |
| NamedCounter * | getObjCounter () const |
| NamedCounter * | setObjCounter (NamedCounter *counter) |
Static Public Member Functions | |
| static ObjList * | srcFormats (const DataFormat &dFormat="slin", int maxCost=-1, unsigned int maxLen=0, ObjList *lst=0) |
| static ObjList * | destFormats (const DataFormat &sFormat="slin", int maxCost=-1, unsigned int maxLen=0, ObjList *lst=0) |
| static ObjList * | allFormats (const ObjList *formats, bool existing=true, bool sameRate=true, bool sameChans=true) |
| static ObjList * | allFormats (const String &formats, bool existing=true, bool sameRate=true, bool sameChans=true) |
| static bool | canConvert (const DataFormat &fmt1, const DataFormat &fmt2="slin") |
| static int | cost (const DataFormat &sFormat, const DataFormat &dFormat) |
| static DataTranslator * | create (const DataFormat &sFormat, const DataFormat &dFormat) |
| static bool | attachChain (DataSource *source, DataConsumer *consumer, bool override=false) |
| static bool | detachChain (DataSource *source, DataConsumer *consumer) |
| static void | setMaxChain (unsigned int maxChain) |
Static Public Member Functions inherited from DataNode | |
| static unsigned long | invalidStamp () |
Static Public Member Functions inherited from RefObject | |
| static bool | alive (const RefObject *obj) |
| static bool | efficientIncDec () |
Static Public Member Functions inherited from GenObject | |
| static void * | getObject (const String &name, const GenObject *obj) |
| static bool | getObjCounting () |
| static void | setObjCounting (bool enable) |
| static NamedCounter * | getObjCounter (const String &name, bool create=true) |
| static ObjList & | getObjCounters () |
Protected Member Functions | |
| ObjList * | getConsumers () const |
| virtual bool | synchronize (DataSource *source) |
Protected Member Functions inherited from RefObject | |
| virtual void | zeroRefs () |
| bool | resurrect () |
Static Protected Member Functions | |
| static void | install (TranslatorFactory *factory) |
| static void | uninstall (TranslatorFactory *factory) |
Friends | |
| class | TranslatorFactory |
Additional Inherited Members | |
Public Types inherited from DataNode | |
| enum | DataFlags { DataStart = 0x0001 , DataEnd = 0x0002 , DataMark = 0x0004 , DataSilent = 0x0008 , DataMissed = 0x0010 , DataError = 0x0020 , DataPrivate = 0x0100 } |
Protected Attributes inherited from DataNode | |
| DataFormat | m_format |
| unsigned long | m_timestamp |
An unidirectional data translator (codec)
The DataTranslator holds a translator (codec) capable of unidirectional conversion of data from one type to another.
| DataTranslator | ( | const char * | sFormat, |
| const char * | dFormat ) |
Construct a data translator.
| sFormat | Name of the source format (data received from the consumer) |
| dFormat | Name of the destination format (data supplied to the source) |
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explicit |
Creates a data translator from an existing source, does not increment the source's reference counter.
| sFormat | Name of the source format (data received from the consumer) |
| source | Optional pointer to a DataSource object |
| ~DataTranslator | ( | ) |
Destroys the translator and its source
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static |
Get a list of formats supported by transcoding for a given format list
| formats | List of data format names |
| existing | Also return formats already existing in the initial list |
| sameRate | Only return formats with same sampling rate |
| sameChans | Only return formats with same number of channels |
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static |
Get a list of formats supported by transcoding for a given format list
| formats | Data format names as comma separated list |
| existing | Also return formats already existing in the initial list |
| sameRate | Only return formats with same sampling rate |
| sameChans | Only return formats with same number of channels |
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static |
Attach a consumer to a source, possibly trough a chain of translators
| source | Source to attach the chain to |
| consumer | Consumer where the chain ends |
| override | Attach chain for temporary source override |
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static |
Check if bidirectional conversion can be performed by installed translators
| fmt1 | Name of the first data format |
| fmt2 | Name of the second data format |
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static |
Finds the cost of a translator given the source and destination format names
| sFormat | Name of the source format (data received from the consumer) |
| dFormat | Name of the destination format (data supplied to the source) |
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static |
Creates a translator given the source and destination format names
| sFormat | Name of the source format (data received from the consumer) |
| dFormat | Name of the destination format (data supplied to the source) |
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static |
Get a list of formats supported for a given input format
| sFormat | Name of source format |
| maxCost | Maximum cost of candidates to consider, -1 to accept all |
| maxLen | Maximum length of codec chains to consider, 0 to accept all |
| lst | Initial list, will append to it if not empty |
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static |
Detach a consumer from a source, possibly trough a chain of translators
| source | Source to dettach the chain from |
| consumer | Consumer where the chain ends |
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inlineprotected |
Get access to the list of consumers of the data source
References ObjList::skipNull().
| DataTranslator * getFirstTranslator | ( | ) |
Get the first translator from a chain
| const DataTranslator * getFirstTranslator | ( | ) | const |
Constant version to get the first translator from a chain
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virtual |
Get a pointer to a derived class given that class name
| name | Name of the class we are asking for |
Reimplemented from DataConsumer.
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inlinevirtual |
Get the data source of a translator object
Reimplemented from DataConsumer.
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staticprotected |
Install a Translator Factory in the list of known codecs
| factory | A pointer to a TranslatorFactory instance |
Referenced by TranslatorFactory::TranslatorFactory().
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static |
Set the length of the longest translator chain we are allowed to create
| maxChain | Desired longest chain length |
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static |
Get a list of formats supported for a given output format.
| dFormat | Name of destination format |
| maxCost | Maximum cost of candidates to consider, -1 to accept all |
| maxLen | Maximum length of codec chains to consider, 0 to accept all |
| lst | Initial list, will append to it if not empty |
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protectedvirtual |
Synchronize the consumer with a source
| source | Data source to copy the timestamp from |
Reimplemented from DataConsumer.
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staticprotected |
Remove a Translator Factory from the list of known codecs
| factory | A pointer to a TranslatorFactory instance |
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inlinevirtual |
Check if the data translator has a valid source
Reimplemented from DataNode.
References DataSource::valid().