synchronous N:1 input to output with historyOverride work to provide the signal processing implementation. More...
#include <gr_sync_decimator.h>
Public Member Functions | |
| unsigned | decimation () const |
| void | set_decimation (unsigned decimation) |
| void | forecast (int noutput_items, gr_vector_int &ninput_items_required) |
| Estimate input requirements given output request. | |
| int | general_work (int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items) |
| compute output items from input items | |
| int | fixed_rate_ninput_to_noutput (int ninput) |
| Given ninput samples, return number of output samples that will be produced. N.B. this is only defined if fixed_rate returns true. Generally speaking, you don't need to override this. | |
| int | fixed_rate_noutput_to_ninput (int noutput) |
| Given noutput samples, return number of input samples required to produce noutput. N.B. this is only defined if fixed_rate returns true. Generally speaking, you don't need to override this. | |
Protected Member Functions | |
| gr_sync_decimator (const std::string &name, gr_io_signature_sptr input_signature, gr_io_signature_sptr output_signature, unsigned decimation) | |
Detailed Description
synchronous N:1 input to output with history
Override work to provide the signal processing implementation.
Constructor & Destructor Documentation
| gr_sync_decimator::gr_sync_decimator | ( | const std::string & | name, |
| gr_io_signature_sptr | input_signature, | ||
| gr_io_signature_sptr | output_signature, | ||
| unsigned | decimation | ||
| ) | [protected] |
Member Function Documentation
| unsigned gr_sync_decimator::decimation | ( | ) | const [inline] |
Referenced by set_decimation().
| int gr_sync_decimator::fixed_rate_ninput_to_noutput | ( | int | ninput | ) | [virtual] |
Given ninput samples, return number of output samples that will be produced. N.B. this is only defined if fixed_rate returns true. Generally speaking, you don't need to override this.
Reimplemented from gr_sync_block.
| int gr_sync_decimator::fixed_rate_noutput_to_ninput | ( | int | noutput | ) | [virtual] |
Given noutput samples, return number of input samples required to produce noutput. N.B. this is only defined if fixed_rate returns true. Generally speaking, you don't need to override this.
Reimplemented from gr_sync_block.
| void gr_sync_decimator::forecast | ( | int | noutput_items, |
| gr_vector_int & | ninput_items_required | ||
| ) | [virtual] |
Estimate input requirements given output request.
- Parameters:
-
noutput_items number of output items to produce ninput_items_required number of input items required on each input stream
Given a request to product noutput_items, estimate the number of data items required on each input stream. The estimate doesn't have to be exact, but should be close.
Reimplemented from gr_sync_block.
Reimplemented in atsc_pad.
| int gr_sync_decimator::general_work | ( | int | noutput_items, |
| gr_vector_int & | ninput_items, | ||
| gr_vector_const_void_star & | input_items, | ||
| gr_vector_void_star & | output_items | ||
| ) | [virtual] |
compute output items from input items
- Parameters:
-
noutput_items number of output items to write on each output stream ninput_items number of input items available on each input stream input_items vector of pointers to the input items, one entry per input stream output_items vector of pointers to the output items, one entry per output stream
- Returns:
- number of items actually written to each output stream, or -1 on EOF. It is OK to return a value less than noutput_items. -1 <= return value <= noutput_items
general_work must call consume or consume_each to indicate how many items were consumed on each input stream.
Reimplemented from gr_sync_block.
| void gr_sync_decimator::set_decimation | ( | unsigned | decimation | ) | [inline] |
References decimation(), and gr_block::set_relative_rate().
The documentation for this class was generated from the following file:
