AnotherFoxGuy/webrtc-audio-processing
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Bump to WebRTC M120 release

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Some API deprecation -- ExperimentalAgc and ExperimentalNs are gone.
We're continuing to carry iSAC even though it's gone upstream, but maybe
we'll want to drop that soon.
This commit is contained in:
Arun Raghavan
2023-12-12 10:42:58 -05:00
parent 9a202fb8c2
commit c6abf6cd3f
479 changed files with 20900 additions and 11996 deletions
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50
webrtc/common_audio/signal_processing/min_max_operations_neon.c
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@ -281,3 +281,53 @@ int32_t WebRtcSpl_MinValueW32Neon(const int32_t* vector, size_t length) {
return minimum;
}
// Finds both the minimum and maximum elements in an array of 16-bit integers.
void WebRtcSpl_MinMaxW16Neon(const int16_t* vector, size_t length,
int16_t* min_val, int16_t* max_val) {
int16_t minimum = WEBRTC_SPL_WORD16_MAX;
int16_t maximum = WEBRTC_SPL_WORD16_MIN;
size_t i = 0;
size_t residual = length & 0x7;
RTC_DCHECK_GT(length, 0);
const int16_t* p_start = vector;
int16x8_t min16x8 = vdupq_n_s16(WEBRTC_SPL_WORD16_MAX);
int16x8_t max16x8 = vdupq_n_s16(WEBRTC_SPL_WORD16_MIN);
// First part, unroll the loop 8 times.
for (i = 0; i < length - residual; i += 8) {
int16x8_t in16x8 = vld1q_s16(p_start);
min16x8 = vminq_s16(min16x8, in16x8);
max16x8 = vmaxq_s16(max16x8, in16x8);
p_start += 8;
}
#if defined(WEBRTC_ARCH_ARM64)
minimum = vminvq_s16(min16x8);
maximum = vmaxvq_s16(max16x8);
#else
int16x4_t min16x4 = vmin_s16(vget_low_s16(min16x8), vget_high_s16(min16x8));
min16x4 = vpmin_s16(min16x4, min16x4);
min16x4 = vpmin_s16(min16x4, min16x4);
minimum = vget_lane_s16(min16x4, 0);
int16x4_t max16x4 = vmax_s16(vget_low_s16(max16x8), vget_high_s16(max16x8));
max16x4 = vpmax_s16(max16x4, max16x4);
max16x4 = vpmax_s16(max16x4, max16x4);
maximum = vget_lane_s16(max16x4, 0);
#endif
// Second part, do the remaining iterations (if any).
for (i = residual; i > 0; i--) {
if (*p_start < minimum)
minimum = *p_start;
if (*p_start > maximum)
maximum = *p_start;
p_start++;
}
*min_val = minimum;
*max_val = maximum;
}