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Pretty-Fast Fast Fourier Transform is a 3rd party FFT C library meant to replace other FFT libraries in WebRTC (see https://crbug.com/webrtc/9577). This CL adds a WebRTC wrapper meant to be used inside the Audio Processing Module (APM). As a first step, it only supports aligned memory allocated via PFFFT. Support for the C++ standard library containers will be done afterwards since it requires careful investigation and benchmarking (because PFFFT uses SIMD optimizations). The wrapper pre-allocates a scratch buffer to avoid VLA. Bug: webrtc:9577 Change-Id: Ied00c3d3b1df292024f608ccf0ed1917d6e92e56 Reviewed-on: https://webrtc-review.googlesource.com/c/122563 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Max Morin <maxmorin@webrtc.org> Commit-Queue: Alessio Bazzica <alessiob@webrtc.org> Cr-Commit-Position: refs/heads/master@{#26808} |
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| .. | ||
| block_mean_calculator.cc | ||
| block_mean_calculator.h | ||
| block_mean_calculator_unittest.cc | ||
| BUILD.gn | ||
| delay_estimator.cc | ||
| delay_estimator.h | ||
| delay_estimator_internal.h | ||
| delay_estimator_unittest.cc | ||
| delay_estimator_wrapper.cc | ||
| delay_estimator_wrapper.h | ||
| DEPS | ||
| ooura_fft.cc | ||
| ooura_fft.h | ||
| ooura_fft_mips.cc | ||
| ooura_fft_neon.cc | ||
| ooura_fft_sse2.cc | ||
| ooura_fft_tables_common.h | ||
| ooura_fft_tables_neon_sse2.h | ||
| pffft_wrapper.cc | ||
| pffft_wrapper.h | ||
| pffft_wrapper_unittest.cc | ||