AnotherFoxGuy/webrtc-audio-processing
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Update to current webrtc library

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This is from the upstream library commit id
3326535126e435f1ba647885ce43a8f0f3d317eb, corresponding to Chromium
88.0.4290.1.
This commit is contained in:
Arun Raghavan
2020-10-12 18:08:02 -04:00
parent b1b02581d3
commit bcec8b0b21
859 changed files with 76187 additions and 49580 deletions
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21
webrtc/common_audio/signal_processing/downsample_fast.c
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@ -8,7 +8,10 @@
* be found in the AUTHORS file in the root of the source tree.
*/
#include "webrtc/common_audio/signal_processing/include/signal_processing_library.h"
#include "common_audio/signal_processing/include/signal_processing_library.h"
#include "rtc_base/checks.h"
#include "rtc_base/sanitizer.h"
// TODO(Bjornv): Change the function parameter order to WebRTC code style.
// C version of WebRtcSpl_DownsampleFast() for generic platforms.
@ -20,6 +23,7 @@ int WebRtcSpl_DownsampleFastC(const int16_t* data_in,
size_t coefficients_length,
int factor,
size_t delay) {
int16_t* const original_data_out = data_out;
size_t i = 0;
size_t j = 0;
int32_t out_s32 = 0;
@ -31,11 +35,20 @@ int WebRtcSpl_DownsampleFastC(const int16_t* data_in,
return -1;
}
rtc_MsanCheckInitialized(coefficients, sizeof(coefficients[0]),
coefficients_length);
for (i = delay; i < endpos; i += factor) {
out_s32 = 2048; // Round value, 0.5 in Q12.
for (j = 0; j < coefficients_length; j++) {
out_s32 += coefficients[j] * data_in[i - j]; // Q12.
// Negative overflow is permitted here, because this is
// auto-regressive filters, and the state for each batch run is
// stored in the "negative" positions of the output vector.
rtc_MsanCheckInitialized(&data_in[(ptrdiff_t) i - (ptrdiff_t) j],
sizeof(data_in[0]), 1);
// out_s32 is in Q12 domain.
out_s32 += coefficients[j] * data_in[(ptrdiff_t) i - (ptrdiff_t) j];
}
out_s32 >>= 12; // Q0.
@ -44,5 +57,9 @@ int WebRtcSpl_DownsampleFastC(const int16_t* data_in,
*data_out++ = WebRtcSpl_SatW32ToW16(out_s32);
}
RTC_DCHECK_EQ(original_data_out + data_out_length, data_out);
rtc_MsanCheckInitialized(original_data_out, sizeof(original_data_out[0]),
data_out_length);
return 0;
}