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VRS
A file format for sensor data.
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VRS
A file format for sensor data.
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Sample fake device showing how to produce records containing audio data (no metadata). More...
Public Member Functions | |
| const Record * | createConfigurationRecord () override |
| const Record * | createStateRecord () override |
| void | createDataRecords (size_t blockIndex) |
 Public Member Functions inherited from vrs::Recordable | |
| string | getRecordableName () const |
| RecordableTypeId | getRecordableTypeId () const |
| uint16_t | getRecordableInstanceId () const |
| StreamId | getStreamId () const |
| void | setRecordableIsActive (bool isActive) |
| bool | isRecordableActive () const |
| void | setCompression (CompressionPreset preset) |
| bool | addRecordFormat (Record::Type recordType, uint32_t formatVersion, const RecordFormat &format, const vector< const DataLayout * > &layouts={}) |
| void | setCreateRecordDelegate (CreateRecordDelegate delegate) |
| void | setTag (const string &tagName, const string &tagValue) |
| void | addTags (const map< string, string > &newTags) |
| void | addTags (const StreamTags &tags) |
| const map< string, string > & | getTags () const |
| const StreamTags & | getStreamTags () const |
| const string & | getSerialNumber () const |
| RecordManager & | getRecordManager () |
Additional Inherited Members | |
| Public Types inherited from vrs::Recordable | |
| using | CreateRecordDelegate = std::function< const Record *(StreamId streamId, double timestamp, Record::Type recordType, uint32_t recordFormatVersion, const DataSource &data)> |
| Static Public Member Functions inherited from vrs::Recordable | |
| static const string & | getOriginalNameTagName () |
| static const string & | getFlavorTagName () |
| static const string & | getSerialNumberTagName () |
| Get the name of the VRS tag used to store the stream's serial number. | |
| static void | resetNewInstanceIds () |
| Protected Member Functions inherited from vrs::Recordable | |
| Recordable (RecordableTypeId typeId, const string &flavor={}) | |
| const Record * | createRecord (double timestampSec, Record::Type recordType, uint32_t formatVersion, const DataSource &data=DataSource()) |
| const Record * | createUncompressedRecord (double timestampSec, Record::Type recordType, uint32_t formatVersion, const DataSource &data, std::unique_ptr< DirectWriteRecordData > &&directWriteRecordData) |
| map< string, string > & | getVRSTags () |
| When direct edits of VRS tags is convenient (record filters) | |
Sample fake device showing how to produce records containing audio data (no metadata).
Stream of audio blocks. Because audio samples can come at a high frequency, we collect in blocks that we save in records. Note that the size of these blocks may vary from record to record, even though in this sample, the records are always of the same size. This sample stream doesn't use any configuration record, but we coud easily add one if needed.
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inlineoverridevirtual |
Configuration records describe how the device recorded is configured/setup. The configuration of a recordable is probably not changed by data flowing through. A framerate, a resolution, are probably part of the configuration. An exposure setting as well, unless it is automatically adjusted as data flows through. The RecordFileWriter will call this method to make sure a configuration record is captured, when a record file is created asynchronously.
Implements vrs::Recordable.
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inlineoverridevirtual |
State records describe the internal state of the device, if it's stateful. It is probably the result of previous calculation/processing of data.
State records should not to be confused with the configuration of the device. A position tracking algorithm probably has a state: the last position it determined, which will be used to calculate the next state when the next data come in. State data typically changes as data flows, according to that data. A camera probably has no state, but probably has a configuration. The RecordFileWriter will call this method to make sure a configuration record is captured, when a record file is created asynchronously.
Implements vrs::Recordable.
1.9.8