Adds FFT Auto Scale Op #2134
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Adds FFT Auto Scale Op #2134
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rascani
reviewed
Jul 18, 2023
| in_frame = np.array([int(j) for j in lines[i].split()], dtype=np.int16) | ||
| out_frame_exp = [int(j) for j in lines[i + 1].split()] | ||
| scale_exp = [int(j) for j in lines[i + 2].split()] | ||
| # TFLite |
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Done. Changed to TFLM, but we have a TODO elsewhere to revisit these tests in general when we get the chance.
| #include "signal/src/msb.h" | ||
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| // TODO(b/286250473): remove namespace once de-duped libraries | ||
| namespace tflm_signal { |
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Can we put this in tflite::tflm_signal? When we remove the namespace, we don't want the symbol to wind up in the global namespace.
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Done. I wonder if we can remove the tflm_signal anyways then, or just reword it to tflite when we de-dupe?
signal/src/fft_auto_scale.cc
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| namespace tflm_signal { | ||
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| int FftAutoScale(const int16_t *input, int size, int16_t *output) { | ||
| const int16_t max = tflm_signal::MaxAbs16(input, size); |
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The tflm_signal:: prefix shouldn't be necessary here or line 29, as we're already in that namespace.
| #include "signal/src/max_abs.h" | ||
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| // TODO(b/286250473): remove namespace once de-duped libraries | ||
| namespace tflm_signal { |
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Same comment here about putting it in the tflite::tflm_signal namespace.
rascani
approved these changes
Jul 18, 2023
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This PR adds additional FFT op functionality in the Signal library, namely adding the FFT Auto Scale operation.
Testing added in the original
fft_test.ccandfft_ops_test.py.BUG=287346710