down_sampler.cc | Explore in Territory

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#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "third_party/blink/renderer/platform/audio/down_sampler.h"

#include <memory>

#include "third_party/blink/renderer/platform/wtf/math_extras.h"
#include "third_party/fdlibm/ieee754.h"

namespace blink {

namespace {

// Computes ideal band-limited half-band filter coefficients.
// In other words, filter out all frequencies higher than 0.25 * Nyquist.
std::unique_ptr<AudioFloatArray> MakeReducedKernel(int size) { … }

}  // namespace

DownSampler::DownSampler(unsigned input_block_size)
    : … { … }

void DownSampler::Process(const float* source_p,
                          float* dest_p,
                          uint32_t source_frames_to_process) { … }

void DownSampler::Reset() { … }

size_t DownSampler::LatencyFrames() const { … }

}  // namespace blink
chromium/third_party/blink/renderer/platform/audio/down_sampler.cc
