2 files changed, 80 insertions, 0 deletions
diff --git a/gr-filter/grc/CMakeLists.txt b/gr-filter/grc/CMakeLists.txt
index f6d6e59f80..97f6d3b8fb 100644
--- a/gr-filter/grc/CMakeLists.txt
+++ b/gr-filter/grc/CMakeLists.txt
@@ -21,6 +21,7 @@ install(FILES
     filter.tree.yml
     filter_dc_blocker_xx.block.yml
     filter_fft_filter_xxx.block.yml
+    filter_fft_low_pass_filter.block.yml
     filter_fir_filter_xxx.block.yml
     filter_filter_delay_fc.block.yml
     filter_filterbank_vcvcf.block.yml
diff --git a/gr-filter/grc/filter_fft_low_pass_filter.block.yml b/gr-filter/grc/filter_fft_low_pass_filter.block.yml
new file mode 100644
index 0000000000..4169d7a287
--- /dev/null
+++ b/gr-filter/grc/filter_fft_low_pass_filter.block.yml
@@ -0,0 +1,79 @@
+# auto-generated by grc.converter
+
+id: filter_fft_low_pass_filter
+label: FFT Low Pass Filter
+category: '[Core]/Filters'
+
+parameters:
+-   id: type
+    label: Type
+    dtype: enum
+    options: [ccc, ccf, fff]
+    option_labels: [Complex->Complex (Complex Taps), Complex->Complex (Real Taps),
+        Float->Float (Real Taps)]
+    option_attributes:
+        input: [complex, complex, float]
+        output: [complex, complex, float]
+        taps: [complex_vector, float_vector, float_vector]
+    hide: part
+-   id: decim
+    label: Decimation
+    dtype: int
+    default: '1'
+-   id: gain
+    label: Gain
+    dtype: real
+    default: '1'
+-   id: samp_rate
+    label: Sample Rate
+    dtype: real
+    default: samp_rate
+-   id: cutoff_freq
+    label: Cutoff Freq
+    dtype: real
+-   id: width
+    label: Transition Width
+    dtype: real
+-   id: win
+    label: Window
+    dtype: int
+    default: firdes.WIN_HAMMING
+    options: [firdes.WIN_HAMMING, firdes.WIN_HANN, firdes.WIN_BLACKMAN, firdes.WIN_RECTANGULAR,
+        firdes.WIN_KAISER]
+    option_labels: [Hamming, Hann, Blackman, Rectangular, Kaiser]
+-   id: beta
+    label: Beta
+    dtype: real
+    default: '6.76'
+-   id: nthreads
+    label: Num. Threads
+    dtype: int
+    default: '1'
+
+inputs:
+-   domain: stream
+    dtype: ${ type.input }
+
+outputs:
+-   domain: stream
+    dtype: ${ type.output }
+
+templates:
+    imports: |-
+        from gnuradio import filter
+        from gnuradio.filter import firdes
+    make: filter.fft_filter_${type}(${decim}, firdes.low_pass(${gain}, ${samp_rate},
+        ${cutoff_freq}, ${width}, ${win}, ${beta}), ${nthreads})
+    callbacks:
+    - set_taps(firdes.low_pass(${gain}, ${samp_rate}, ${cutoff_freq}, ${width}, ${win},
+        ${beta}))
+    - set_nthreads(${nthreads})
+
+documentation: |-
+    This filter is a convenience wrapper for an FFT-based low-pass filter.
+
+    Sample rate, cutoff frequency, and transition width are in Hertz.
+
+    The beta paramater only applies to the Kaiser window.
+
+file_format: 1