Namespaces | |
| namespace | kernel |
| namespace | pdu |
Classes | |
| class | abs_blk |
| output[m] = abs(input[m]) for all M streams. More... | |
| class | add_blk |
| output = sum(input[0], input[1], ..., input[M-1]) More... | |
| class | add_const_bb |
| output = input + constant More... | |
| class | add_const_cc |
| output = input + constant More... | |
| class | add_const_ff |
| output = input + constant More... | |
| class | add_const_ii |
| output = input + constant More... | |
| class | add_const_ss |
| output = input + constant More... | |
| class | add_const_v |
| output[m] = input[m] + constant vector for all M streams. More... | |
| class | and_blk |
| output = input[0] & input[1] & ... & input[M-1] More... | |
| class | and_const |
| output[m] = input[m] & value for all M streams. More... | |
| class | annotator_1to1 |
| 1-to-1 stream annotator testing block. FOR TESTING PURPOSES ONLY. More... | |
| class | annotator_alltoall |
| All-to-all stream annotator testing block. FOR TESTING PURPOSES ONLY. More... | |
| class | annotator_raw |
| raw stream annotator testing block. More... | |
| class | argmax |
| Compares vectors from multiple streams and determines the index in the vector and stream number where the maximum value occurred. More... | |
| class | bin_statistics_f |
| control scanning and record frequency domain statistics More... | |
| class | burst_tagger |
| Sets a burst on/off tag based on the value of the trigger input. More... | |
| class | char_to_float |
| Convert stream of chars to a stream of float. More... | |
| class | char_to_short |
| Convert stream of chars to a stream of shorts. More... | |
| class | check_lfsr_32k_s |
| sink that checks if its input stream consists of a lfsr_32k sequence. More... | |
| class | complex_to_arg |
| complex in, arg (arctan) out (float) More... | |
| class | complex_to_float |
| Convert a stream of gr_complex to 1 or 2 streams of float. More... | |
| class | complex_to_imag |
| Produces the imaginary part (as a float0 of a complex stream. More... | |
| class | complex_to_interleaved_char |
| Convert stream of complex to a stream of interleaved chars. More... | |
| class | complex_to_interleaved_short |
| Convert stream of complex to a stream of interleaved shorts. More... | |
| class | complex_to_mag |
| complex in, magnitude out (float) More... | |
| class | complex_to_mag_squared |
| complex in, magnitude squared out (float) More... | |
| class | complex_to_magphase |
| Convert a stream of gr_complex to magnitude and phase (both floats). More... | |
| class | complex_to_real |
| Produces the real part (as a float0 of a complex stream. More... | |
| class | conjugate_cc |
| output = complex conjugate of input More... | |
| class | control_loop |
| A second-order control loop implementation class. More... | |
| class | copy |
| output[i] = input[i] More... | |
| class | ctrlport_probe2_b |
| A ControlPort probe to export vectors of signals. More... | |
| class | ctrlport_probe2_c |
| A ControlPort probe to export vectors of signals. More... | |
| class | ctrlport_probe2_f |
| A ControlPort probe to export vectors of signals. More... | |
| class | ctrlport_probe2_i |
| A ControlPort probe to export vectors of signals. More... | |
| class | ctrlport_probe2_s |
| A ControlPort probe to export vectors of signals. More... | |
| class | ctrlport_probe_c |
| A ControlPort probe to export vectors of signals. More... | |
| class | deinterleave |
| deinterleave an input block of samples into N outputs. More... | |
| class | delay |
| delay the input by a certain number of samples More... | |
| class | divide |
| output = input[0] / input[1] / ... / input[M-1] More... | |
| class | endian_swap |
| Convert stream of items into their byte swapped version. More... | |
| class | exponentiate_const_cci |
| Exponentiates a complex stream with an integer exponent. More... | |
| class | file_descriptor_sink |
| Write stream to file descriptor. More... | |
| class | file_descriptor_source |
| Read stream from file descriptor. More... | |
| class | file_meta_sink |
| Write stream to file with meta-data headers. More... | |
| class | file_meta_source |
| Reads stream from file with meta-data headers. Headers are parsed into tags. More... | |
| class | file_sink |
| Write stream to file. More... | |
| class | file_sink_base |
| Common base class for file sinks. More... | |
| class | file_source |
| Read stream from file. More... | |
| class | float_to_char |
| Convert stream of floats to a stream of char. More... | |
| class | float_to_complex |
| one or two floats in, complex out More... | |
| class | float_to_int |
| Convert stream of floats to a stream of ints. More... | |
| class | float_to_short |
| Convert stream of floats to a stream of shorts. More... | |
| class | float_to_uchar |
| Convert stream of floats to a stream of unsigned chars. More... | |
| class | head |
| copies the first N items to the output then signals done More... | |
| class | int_to_float |
| Convert stream of ints to a stream of floats. More... | |
| class | integrate |
| Integrate successive samples and decimate. More... | |
| class | interleave |
| interleave N inputs into a single output More... | |
| class | interleaved_char_to_complex |
| Convert stream of interleaved chars to a stream of complex. More... | |
| class | interleaved_short_to_complex |
| Convert stream of interleaved shorts to a stream of complex. More... | |
| class | keep_m_in_n |
decimate a stream, keeping the first m items out of every n starting after offset items. More... | |
| class | keep_one_in_n |
decimate a stream, keeping the last item out of every n. More... | |
| class | lfsr_15_1_0 |
| Linear Feedback Shift Register using primitive polynomial x^15 + x + 1. More... | |
| class | lfsr_32k |
| generate pseudo-random sequence of length 32768 bits. More... | |
| class | lfsr_32k_source_s |
| LFSR pseudo-random source with period of 2^15 bits (2^11 shorts). More... | |
| class | magphase_to_complex |
| two floats in (mag and phase), complex out More... | |
| class | max_blk |
| Compares vectors from multiple streams and determines the maximum value from each vector over all streams. More... | |
| Debug block for the message passing system. More... | |
| Send message at defined interval. More... | |
| Send message at defined interval. More... | |
| class | min_blk |
| Compares vectors from multiple streams and determines the minimum value from each vector over all streams. More... | |
| class | moving_average |
| output is the moving sum of the last N samples, scaled by the scale factor More... | |
| class | multiply |
| output = prod (input_0, input_1, ...) More... | |
| class | multiply_by_tag_value_cc |
| output = input * complex constant More... | |
| class | multiply_conjugate_cc |
| Multiplies stream 0 by the complex conjugate of stream 1. More... | |
| class | multiply_const |
| output = input * constant More... | |
| class | multiply_const_v |
| output = input * constant vector (element-wise) More... | |
| class | multiply_matrix |
| Matrix multiplexer/multiplier: y(k) = A x(k). More... | |
| class | mute_blk |
| output = input or zero if muted. More... | |
| class | nlog10_ff |
| output = n*log10(input) + k More... | |
| class | nop |
| Does nothing. Used for testing only. More... | |
| class | not_blk |
| output = ~input More... | |
| class | null_sink |
| Bit bucket. Use as a termination point when a sink is required and we don't want to do anything real. More... | |
| class | null_source |
| A source of zeros used mainly for testing. More... | |
| class | or_blk |
| output = input_0 | input_1 | , ... | input_N) More... | |
| class | pack_k_bits_bb |
| Converts a stream of bytes with 1 bit in the LSB to a byte with k relevant bits. More... | |
| class | packed_to_unpacked |
| Convert a stream of packed bytes or shorts to stream of unpacked bytes or shorts. More... | |
| class | patterned_interleaver |
Interleave items based on the provided vector pattern. More... | |
| class | pdu_filter |
| Propagates only pdus containing k=>v in meta. More... | |
| class | pdu_remove |
| remove key k in pdu's meta field and pass on More... | |
| class | pdu_set |
| Set k=>v in pdu's meta field and pass on. More... | |
| class | pdu_to_tagged_stream |
| Turns received PDUs into a tagged stream of items. More... | |
| class | peak_detector |
| Detect the peak of a signal. More... | |
| class | peak_detector2_fb |
| Detect the peak of a signal. More... | |
| class | plateau_detector_fb |
| Detects a plateau and marks the middle. More... | |
| class | probe_rate |
| throughput measurement More... | |
| class | probe_signal |
| Sink that allows a sample to be grabbed from Python. More... | |
| class | probe_signal_v |
| Sink that allows a vector of samples to be grabbed from Python. More... | |
| class | random_pdu |
| Sends a random PDU at intervals. More... | |
| class | regenerate_bb |
| Detect the peak of a signal and repeat every period samples. More... | |
| class | repack_bits_bb |
Repack k bits from the input stream onto l bits of the output stream. More... | |
| class | repeat |
repeat each input repeat times More... | |
| class | rms_cf |
| RMS average power. More... | |
| class | rms_ff |
| RMS average power. More... | |
| class | rotator |
| class | rotator_cc |
| Complex rotator. More... | |
| class | sample_and_hold |
| sample and hold circuit More... | |
| class | selector |
| output[output_index][i] = input[input_index][i] More... | |
| class | short_to_char |
| Convert stream of shorts to a stream of chars. More... | |
| class | short_to_float |
| Convert stream of shorts to a stream of floats. More... | |
| class | skiphead |
| skips the first N items, from then on copies items to the output More... | |
| class | socket_pdu |
| Creates socket interface and translates traffic to PDUs. More... | |
| class | stream_mux |
| Stream muxing block to multiplex many streams into one with a specified format. More... | |
| class | stream_to_streams |
| convert a stream of items into a N streams of items More... | |
| class | stream_to_tagged_stream |
| Converts a regular stream into a tagged stream. More... | |
| class | stream_to_vector |
| convert a stream of items into a stream of gnuradio/blocks containing nitems_per_block More... | |
| class | streams_to_stream |
| Convert N streams of 1 item into a 1 stream of N items. More... | |
| class | streams_to_vector |
| convert N streams of items to 1 stream of vector length N More... | |
| class | stretch_ff |
| adjust y-range of an input vector by mapping to range (max-of-input, stipulated-min). Primarily for spectral signature matching by normalizing spectrum dynamic ranges. More... | |
| class | sub |
| output = input_0 - input_1 - ...) More... | |
| class | tag_debug |
| Bit bucket that prints out any tag received. More... | |
| class | tag_gate |
| Control tag propagation. More... | |
| class | tag_share |
| Adds tags from Input 1 onto Input 0's stream. More... | |
| class | tagged_file_sink |
| A file sink that uses tags to save files. More... | |
| class | tagged_stream_align |
| Align a stream to a tagged stream item. More... | |
| class | tagged_stream_multiply_length |
| Allows scaling of a tagged stream length tag. More... | |
| class | tagged_stream_mux |
| Combines tagged streams. More... | |
| class | tagged_stream_to_pdu |
| Turns received stream data and tags into PDUs and sends them through a message port. More... | |
| class | tags_strobe |
| Send tags at defined interval. More... | |
| class | tcp_server_sink |
| Send stream through a TCP socket. More... | |
| class | test_tag_variable_rate_ff |
| Used for testing tag propagation. More... | |
| class | threshold_ff |
| Output a 1 or zero based on a threshold value. More... | |
| class | throttle |
| throttle flow of samples such that the average rate does not exceed samples_per_sec. More... | |
| class | transcendental |
| A block that performs various transcendental math operations. More... | |
| class | tsb_vector_sink |
| A vector sink for tagged streams. More... | |
| class | tuntap_pdu |
| Creates TUNTAP interface and translates traffic to PDUs. More... | |
| class | uchar_to_float |
| Convert stream of unsigned chars to a stream of floats. More... | |
| class | udp_sink |
| Write stream to an UDP socket. More... | |
| class | udp_source |
| Read stream from an UDP socket. More... | |
| class | unpack_k_bits_bb |
| Converts a byte with k relevant bits to k output bytes with 1 bit in the LSB. More... | |
| class | unpacked_to_packed |
| Convert a stream of unpacked bytes or shorts into a stream of packed bytes or shorts. More... | |
| class | vco_c |
| VCO - Voltage controlled oscillator. More... | |
| class | vco_f |
| VCO - Voltage controlled oscillator. More... | |
| class | vector_insert |
| source of T's that gets its data from a vector More... | |
| class | vector_map |
| Maps elements from a set of input vectors to a set of output vectors. More... | |
| class | vector_sink |
| T sink that writes to a vector. More... | |
| class | vector_source |
Source that streams T items based on the input data vector. More... | |
| class | vector_to_stream |
| convert a stream of gnuradio/blocks of nitems_per_block items into a stream of items More... | |
| class | vector_to_streams |
| Convert 1 stream of vectors of length N to N streams of items. More... | |
| class | wavfile_sink |
| Write stream to a Microsoft PCM (.wav) file. More... | |
| class | wavfile_source |
| Read stream from a Microsoft PCM (.wav) file, output floats. More... | |
| class | xor_blk |
| output = input_0 ^ input_1 ^ , ... ^ input_N) More... | |
Enumerations | |
| enum | gr_file_types { GR_FILE_BYTE = 0 , GR_FILE_CHAR = 0 , GR_FILE_SHORT = 1 , GR_FILE_INT , GR_FILE_LONG , GR_FILE_LONG_LONG , GR_FILE_FLOAT , GR_FILE_DOUBLE } |
| enum | message_strobe_random_distribution_t { STROBE_POISSON = 1 , STROBE_GAUSSIAN = 2 , STROBE_UNIFORM = 3 } |
Functions | |
| static float | tanhf_lut (float x) |
| BLOCKS_API unsigned int | count_bits8 (unsigned int x) |
| return number of set bits in the low 8 bits of x | |
| BLOCKS_API unsigned int | count_bits16 (unsigned int x) |
| return number of set bits in the low 16 bits of x | |
| BLOCKS_API unsigned int | count_bits32 (unsigned int x) |
| return number of set bits in the low 32 bits of x | |
| BLOCKS_API unsigned int | count_bits64 (unsigned long long int x) |
| return number of set bits in a 64-bit word | |
| template<unsigned int k> | |
| static int | log2_const () |
| template<> | |
| int | log2_const< 1 > () |
| template<> | |
| int | log2_const< 2 > () |
| template<> | |
| int | log2_const< 4 > () |
| template<> | |
| int | log2_const< 8 > () |
| template<> | |
| int | log2_const< 16 > () |
| template<> | |
| int | log2_const< 32 > () |
| template<> | |
| int | log2_const< 64 > () |
| template<> | |
| int | log2_const< 128 > () |
| template<> | |
| int | log2_const< 256 > () |
| template<> | |
| int | log2_const< 512 > () |
| template<> | |
| int | log2_const< 1024 > () |
| BLOCKS_API bool | wavheader_parse (FILE *fp, unsigned int &sample_rate, int &nchans, int &bytes_per_sample, int &first_sample_pos, unsigned int &samples_per_chan) |
| Read signal information from a given WAV file. | |
| BLOCKS_API short int | wav_read_sample (FILE *fp, int bytes_per_sample) |
| Read one sample from an open WAV file at the current position. | |
| BLOCKS_API bool | wavheader_write (FILE *fp, unsigned int sample_rate, int nchans, int bytes_per_sample) |
| Write a valid RIFF file header. | |
| BLOCKS_API void | wav_write_sample (FILE *fp, short int sample, int bytes_per_sample) |
| Write one sample to an open WAV file at the current position. | |
| BLOCKS_API bool | wavheader_complete (FILE *fp, unsigned int byte_count) |
| Complete a WAV header. | |
Variables | |
| static float | tanh_lut_table [256] |
| const char | METADATA_VERSION = 0 |
| const size_t | METADATA_HEADER_SIZE = 149 |
| typedef abs_blk<float> gr::blocks::abs_ff |
| typedef abs_blk<std::int32_t> gr::blocks::abs_ii |
| typedef abs_blk<std::int16_t> gr::blocks::abs_ss |
| typedef add_blk<gr_complex> gr::blocks::add_cc |
| typedef add_const_v<std::uint8_t> gr::blocks::add_const_vbb |
| typedef add_const_v<float> gr::blocks::add_const_vff |
| typedef add_const_v<std::int32_t> gr::blocks::add_const_vii |
| typedef add_const_v<std::int16_t> gr::blocks::add_const_vss |
| typedef add_blk<float> gr::blocks::add_ff |
| typedef add_blk<std::int32_t> gr::blocks::add_ii |
| typedef add_blk<std::int16_t> gr::blocks::add_ss |
| typedef and_blk<std::uint8_t> gr::blocks::and_bb |
| typedef and_const<std::uint8_t> gr::blocks::and_const_bb |
| typedef and_const<std::int32_t> gr::blocks::and_const_ii |
| typedef and_const<std::int16_t> gr::blocks::and_const_ss |
| typedef and_blk<std::int32_t> gr::blocks::and_ii |
| typedef and_blk<std::int16_t> gr::blocks::and_ss |
| typedef argmax<float> gr::blocks::argmax_fs |
| typedef argmax<std::int32_t> gr::blocks::argmax_is |
| typedef argmax<std::int16_t> gr::blocks::argmax_ss |
| typedef divide<gr_complex> gr::blocks::divide_cc |
| typedef divide<float> gr::blocks::divide_ff |
| typedef divide<std::int32_t> gr::blocks::divide_ii |
| typedef divide<std::int16_t> gr::blocks::divide_ss |
| typedef integrate<gr_complex> gr::blocks::integrate_cc |
| typedef integrate<float> gr::blocks::integrate_ff |
| typedef integrate<std::int32_t> gr::blocks::integrate_ii |
| typedef integrate<std::int16_t> gr::blocks::integrate_ss |
| typedef max_blk<float> gr::blocks::max_ff |
| typedef max_blk<std::int32_t> gr::blocks::max_ii |
| typedef max_blk<std::int16_t> gr::blocks::max_ss |
| typedef min_blk<float> gr::blocks::min_ff |
| typedef min_blk<std::int32_t> gr::blocks::min_ii |
| typedef min_blk<std::int16_t> gr::blocks::min_ss |
| typedef moving_average<float> gr::blocks::moving_average_ff |
| typedef moving_average<std::int32_t> gr::blocks::moving_average_ii |
| typedef moving_average<std::int16_t> gr::blocks::moving_average_ss |
| typedef multiply<gr_complex> gr::blocks::multiply_cc |
| typedef multiply_const<float> gr::blocks::multiply_const_ff |
| typedef multiply_const<std::int32_t> gr::blocks::multiply_const_ii |
| typedef multiply_const<std::int16_t> gr::blocks::multiply_const_ss |
| typedef multiply_const_v<float> gr::blocks::multiply_const_vff |
| typedef multiply_const_v<std::int32_t> gr::blocks::multiply_const_vii |
| typedef multiply_const_v<std::int16_t> gr::blocks::multiply_const_vss |
| typedef multiply<float> gr::blocks::multiply_ff |
| typedef multiply<std::int32_t> gr::blocks::multiply_ii |
| typedef multiply_matrix<float> gr::blocks::multiply_matrix_ff |
| typedef multiply<std::int16_t> gr::blocks::multiply_ss |
| typedef mute_blk<gr_complex> gr::blocks::mute_cc |
| typedef mute_blk<float> gr::blocks::mute_ff |
| typedef mute_blk<std::int32_t> gr::blocks::mute_ii |
| typedef mute_blk<std::int16_t> gr::blocks::mute_ss |
| typedef not_blk<std::uint8_t> gr::blocks::not_bb |
| typedef not_blk<std::int32_t> gr::blocks::not_ii |
| typedef not_blk<std::int16_t> gr::blocks::not_ss |
| typedef or_blk<char> gr::blocks::or_bb |
| typedef or_blk<int> gr::blocks::or_ii |
| typedef or_blk<short> gr::blocks::or_ss |
| typedef packed_to_unpacked<std::uint8_t> gr::blocks::packed_to_unpacked_bb |
| typedef packed_to_unpacked<std::int32_t> gr::blocks::packed_to_unpacked_ii |
| typedef packed_to_unpacked<std::int16_t> gr::blocks::packed_to_unpacked_ss |
| typedef peak_detector<float> gr::blocks::peak_detector_fb |
| typedef peak_detector<std::int32_t> gr::blocks::peak_detector_ib |
| typedef peak_detector<std::int16_t> gr::blocks::peak_detector_sb |
| typedef probe_signal<std::uint8_t> gr::blocks::probe_signal_b |
| typedef probe_signal<float> gr::blocks::probe_signal_f |
| typedef probe_signal<std::int32_t> gr::blocks::probe_signal_i |
| typedef probe_signal<std::int16_t> gr::blocks::probe_signal_s |
| typedef probe_signal_v<std::uint8_t> gr::blocks::probe_signal_vb |
| typedef probe_signal_v<float> gr::blocks::probe_signal_vf |
| typedef probe_signal_v<std::int32_t> gr::blocks::probe_signal_vi |
| typedef probe_signal_v<std::int16_t> gr::blocks::probe_signal_vs |
| typedef sample_and_hold<std::uint8_t> gr::blocks::sample_and_hold_bb |
| typedef sample_and_hold<float> gr::blocks::sample_and_hold_ff |
| typedef sample_and_hold<std::int32_t> gr::blocks::sample_and_hold_ii |
| typedef sample_and_hold<std::int16_t> gr::blocks::sample_and_hold_ss |
| typedef sub<gr_complex> gr::blocks::sub_cc |
| typedef sub<float> gr::blocks::sub_ff |
| typedef sub<std::int32_t> gr::blocks::sub_ii |
| typedef sub<std::int16_t> gr::blocks::sub_ss |
| typedef tsb_vector_sink<std::uint8_t> gr::blocks::tsb_vector_sink_b |
| typedef tsb_vector_sink<float> gr::blocks::tsb_vector_sink_f |
| typedef tsb_vector_sink<std::uint32_t> gr::blocks::tsb_vector_sink_i |
| typedef tsb_vector_sink<std::uint16_t> gr::blocks::tsb_vector_sink_s |
| typedef unpacked_to_packed<std::uint8_t> gr::blocks::unpacked_to_packed_bb |
| typedef unpacked_to_packed<std::int32_t> gr::blocks::unpacked_to_packed_ii |
| typedef unpacked_to_packed<std::int16_t> gr::blocks::unpacked_to_packed_ss |
| typedef vector_insert<std::uint8_t> gr::blocks::vector_insert_b |
| typedef vector_insert<float> gr::blocks::vector_insert_f |
| typedef vector_insert<std::int32_t> gr::blocks::vector_insert_i |
| typedef vector_insert<std::int16_t> gr::blocks::vector_insert_s |
| typedef vector_sink<std::uint8_t> gr::blocks::vector_sink_b |
| typedef vector_sink<float> gr::blocks::vector_sink_f |
| typedef vector_sink<std::int32_t> gr::blocks::vector_sink_i |
| typedef vector_sink<std::int16_t> gr::blocks::vector_sink_s |
| typedef vector_source<std::uint8_t> gr::blocks::vector_source_b |
| typedef vector_source<float> gr::blocks::vector_source_f |
| typedef vector_source<std::int32_t> gr::blocks::vector_source_i |
| typedef vector_source<std::int16_t> gr::blocks::vector_source_s |
| typedef xor_blk<std::uint8_t> gr::blocks::xor_bb |
| typedef xor_blk<std::int32_t> gr::blocks::xor_ii |
| typedef xor_blk<std::int16_t> gr::blocks::xor_ss |
| BLOCKS_API unsigned int gr::blocks::count_bits16 | ( | unsigned int | x | ) |
return number of set bits in the low 16 bits of x
References BLOCKS_API, and count_bits16().
Referenced by count_bits16().
| BLOCKS_API unsigned int gr::blocks::count_bits32 | ( | unsigned int | x | ) |
return number of set bits in the low 32 bits of x
References BLOCKS_API, and count_bits32().
Referenced by count_bits32().
| BLOCKS_API unsigned int gr::blocks::count_bits64 | ( | unsigned long long int | x | ) |
return number of set bits in a 64-bit word
References BLOCKS_API, and count_bits64().
Referenced by count_bits64().
| BLOCKS_API unsigned int gr::blocks::count_bits8 | ( | unsigned int | x | ) |
return number of set bits in the low 8 bits of x
References BLOCKS_API, and count_bits8().
Referenced by count_bits8().
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inlinestatic |
|
inline |
References log2_const().
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inline |
References log2_const().
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inline |
References log2_const().
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inline |
References log2_const().
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inline |
References log2_const().
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inline |
References log2_const().
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inline |
References log2_const().
|
inline |
References log2_const().
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inline |
References log2_const().
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inline |
References log2_const().
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inline |
References log2_const().
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inlinestatic |
A look-up table (LUT) tanh calcuation. This function returns an estimate to tanh(x) based on a 256-point LUT between -2 and
This LUT form of the tanh is "hidden" in this code because it is likely too coarse an estimate for any real uses of a tanh. It is useful, however, in certain control loop applications where the input is expected to be within these bounds and the noise will be greater than the quanitzation of this small LUT. For more accurate forms of tanh, see volk_32f_tanh_32f.
References tanh_lut_table, and tanhf_lut().
Referenced by tanhf_lut().
| BLOCKS_API short int gr::blocks::wav_read_sample | ( | FILE * | fp, |
| int | bytes_per_sample ) |
Read one sample from an open WAV file at the current position.
Takes care of endianness.
References BLOCKS_API, and wav_read_sample().
Referenced by wav_read_sample().
| BLOCKS_API void gr::blocks::wav_write_sample | ( | FILE * | fp, |
| short int | sample, | ||
| int | bytes_per_sample ) |
Write one sample to an open WAV file at the current position.
Takes care of endianness.
References BLOCKS_API, and wav_write_sample().
Referenced by wav_write_sample().
| BLOCKS_API bool gr::blocks::wavheader_complete | ( | FILE * | fp, |
| unsigned int | byte_count ) |
Complete a WAV header.
Note: The stream position is changed during this function. If anything needs to be written to the WAV file after calling this function (which shouldn't happen), you need to fseek() to the end of the file (or wherever).
| [in] | fp | File pointer to an open WAV file with a blank header |
| [in] | byte_count | Length of all samples written to the file in bytes. |
References BLOCKS_API, and wavheader_complete().
Referenced by wavheader_complete().
| BLOCKS_API bool gr::blocks::wavheader_parse | ( | FILE * | fp, |
| unsigned int & | sample_rate, | ||
| int & | nchans, | ||
| int & | bytes_per_sample, | ||
| int & | first_sample_pos, | ||
| unsigned int & | samples_per_chan ) |
Read signal information from a given WAV file.
| [in] | fp | File pointer to an opened, empty file. |
| [out] | sample_rate | Stores the sample rate [S/s] |
| [out] | nchans | Number of channels |
| [out] | bytes_per_sample | Bytes per sample, can either be 1 or 2 (corresponding o 8 or 16 bit samples, respectively) |
| [out] | first_sample_pos | Number of the first byte containing a sample. Use this with fseek() to jump from the end of the file to the first sample when in repeat mode. |
| [out] | samples_per_chan | Number of samples per channel |
References BLOCKS_API, and wavheader_parse().
Referenced by wavheader_parse().
| BLOCKS_API bool gr::blocks::wavheader_write | ( | FILE * | fp, |
| unsigned int | sample_rate, | ||
| int | nchans, | ||
| int | bytes_per_sample ) |
Write a valid RIFF file header.
Note: Some header values are kept blank because they're usually not known a-priori (file and chunk lengths). Use gri_wavheader_complete() to fill these in.
References wavheader_write().
Referenced by wavheader_write().
| const size_t gr::blocks::METADATA_HEADER_SIZE = 149 |
| const char gr::blocks::METADATA_VERSION = 0 |
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static |
Referenced by tanhf_lut().
1.18.0 