Interface for seekable Reader, where the file position can be adapted. More...

#include <reader.h>

Inheritance diagram for adtf_file::SeekableReader:

Collaboration diagram for adtf_file::SeekableReader:

Public Member Functions
virtual uint64_t	getItemIndexForTimeStamp (std::chrono::nanoseconds time_stamp)=0

virtual uint64_t	getItemIndexForStreamItemIndex (uint16_t stream_id, uint64_t stream_item_index)=0

virtual std::shared_ptr< const StreamType >	getStreamTypeBefore (uint64_t item_index, uint16_t stream_id)=0

virtual void	seekTo (uint64_t item_index)=0

Public Member Functions inherited from adtf_file::Reader
virtual std::string	getReaderIdentifier () const =0
	Get the Reader Identifier of the Reader. More...

virtual void	open (const std::string &filename, std::shared_ptr< SampleFactory > sample_factory, std::shared_ptr< StreamTypeFactory > stream_type_factory)=0
	opens a file by the given filename. The given factories must be used to create samples and streamtypes for the getNextItem call More...

virtual FileItem	getNextItem ()=0

virtual uint32_t	getFileVersion () const

virtual std::string	getDescription () const

virtual std::vector< Extension >	getExtensions () const
	Get the Extensions if any. More...

virtual std::vector< Stream >	getStreams () const
	Get the Streams. More...

virtual std::optional< uint64_t >	getItemCount () const
	Get the Item Count. This gets the overall count of all items (samples, stream types and triggers) of all streams. More...

virtual std::optional< double >	getProgress () const
	Get the Progress, a relative file position between 0.0 and 1.0. More...

Public Member Functions inherited from adtf_file::Configurable
virtual	~Configurable ()=default
	DTOR.

virtual const Configuration &	getConfiguration () const

virtual void	setConfiguration (const Configuration &configuration)

Detailed Description

Interface for seekable Reader, where the file position can be adapted.

Member Function Documentation

◆ getItemIndexForStreamItemIndex()

virtual uint64_t adtf_file::SeekableReader::getItemIndexForStreamItemIndex	(	uint16_t	stream_id,
		uint64_t	stream_item_index
	)

pure virtual

Find the index of the given stream item.

Parameters

[in]	stream_id	The stream id.
[in]	stream_item_index	The item index within the stream.

Returns: The item index.

Remarks: The SeekableReader class is an interface where implementation should at least throw following exceptions in case of error:

Exceptions

std::out_of_range	if given `item_index` is out of range
std::out_of_range	if given `stream_id` is out of range (must be at least 1)
std::runtime_error	if position was not found
any	other implementation dependent exceptions for the get call

Implemented in adtf_file::ADTFDatFileReader.

◆ getItemIndexForTimeStamp()

virtual uint64_t adtf_file::SeekableReader::getItemIndexForTimeStamp ( std::chrono::nanoseconds time_stamp )

pure virtual

Find the index of the first item that has a timestamp greator or equal to the one specified.

Parameters

[in] time_stamp The timestamp.

Returns: The item index.

Remarks: The SeekableReader class is an interface where implementation should at least throw following exceptions in case of error:

Exceptions

std::runtime_error	if position was not found
any	other implementation dependent exceptions for the get call

Implemented in adtf_file::ADTFDatFileReader.

◆ getStreamTypeBefore()

virtual std::shared_ptr<const StreamType> adtf_file::SeekableReader::getStreamTypeBefore	(	uint64_t	item_index,
		uint16_t	stream_id
	)

pure virtual

Returns the stream type that is valid

Parameters

[in]	item_index	The global index before which the stream type should be retrieved.
[in]	stream_id	The stream id for which the stream type should be retrieved.

Returns: A shared pointer to the stream type.

Remarks: The SeekableReader class is an interface where implementation should at least throw following exceptions in case of error:

Exceptions

std::out_of_range	if given `item_index` is out of range
std::out_of_range	if given `stream_id` is out of range (must be at least 1)
any	other implementation dependent exceptions for the get call

Implemented in adtf_file::ADTFDatFileReader.

◆ seekTo()

virtual void adtf_file::SeekableReader::seekTo ( uint64_t item_index )

pure virtual

Seek to the given index, such that getNextItem() will return the item corresponding to the index on the next call.

Parameters

[in] item_index The index to seek to.

Remarks: The SeekableReader class is an interface where implementation should at least throw following exceptions in case of error:

Exceptions

std::out_of_range	if given `item_index` is out of range (check for Reader::getItemCount)
any	other implementation dependent exceptions for the seek call

Implemented in adtf_file::ADTFDatFileReader.

The documentation for this class was generated from the following file:

include/adtf_file/reader.h

Public Member Functions

Detailed Description

Member Function Documentation

◆ getItemIndexForStreamItemIndex()

◆ getItemIndexForTimeStamp()

◆ getStreamTypeBefore()

◆ seekTo()