Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 221 insertions, 0 deletions

diff --git a/third_party/libwebrtc/modules/audio_coding/neteq/audio_multi_vector.cc b/third_party/libwebrtc/modules/audio_coding/neteq/audio_multi_vector.cc
new file mode 100644
index 0000000000..3aa49e5b9a
--- /dev/null
+++ b/third_party/libwebrtc/modules/audio_coding/neteq/audio_multi_vector.cc
@@ -0,0 +1,221 @@
+/*
+ *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "modules/audio_coding/neteq/audio_multi_vector.h"
+
+#include <algorithm>
+
+#include "rtc_base/checks.h"
+
+namespace webrtc {
+
+AudioMultiVector::AudioMultiVector(size_t N) {
+  RTC_DCHECK_GT(N, 0);
+  if (N < 1)
+    N = 1;
+  for (size_t n = 0; n < N; ++n) {
+    channels_.push_back(new AudioVector);
+  }
+  num_channels_ = N;
+}
+
+AudioMultiVector::AudioMultiVector(size_t N, size_t initial_size) {
+  RTC_DCHECK_GT(N, 0);
+  if (N < 1)
+    N = 1;
+  for (size_t n = 0; n < N; ++n) {
+    channels_.push_back(new AudioVector(initial_size));
+  }
+  num_channels_ = N;
+}
+
+AudioMultiVector::~AudioMultiVector() {
+  std::vector<AudioVector*>::iterator it = channels_.begin();
+  while (it != channels_.end()) {
+    delete (*it);
+    ++it;
+  }
+}
+
+void AudioMultiVector::Clear() {
+  for (size_t i = 0; i < num_channels_; ++i) {
+    channels_[i]->Clear();
+  }
+}
+
+void AudioMultiVector::Zeros(size_t length) {
+  for (size_t i = 0; i < num_channels_; ++i) {
+    channels_[i]->Clear();
+    channels_[i]->Extend(length);
+  }
+}
+
+void AudioMultiVector::CopyTo(AudioMultiVector* copy_to) const {
+  if (copy_to) {
+    for (size_t i = 0; i < num_channels_; ++i) {
+      channels_[i]->CopyTo(&(*copy_to)[i]);
+    }
+  }
+}
+
+void AudioMultiVector::PushBackInterleaved(
+    rtc::ArrayView<const int16_t> append_this) {
+  RTC_DCHECK_EQ(append_this.size() % num_channels_, 0);
+  if (append_this.empty()) {
+    return;
+  }
+  if (num_channels_ == 1) {
+    // Special case to avoid extra allocation and data shuffling.
+    channels_[0]->PushBack(append_this.data(), append_this.size());
+    return;
+  }
+  size_t length_per_channel = append_this.size() / num_channels_;
+  int16_t* temp_array = new int16_t[length_per_channel];  // Temporary storage.
+  for (size_t channel = 0; channel < num_channels_; ++channel) {
+    // Copy elements to `temp_array`.
+    for (size_t i = 0; i < length_per_channel; ++i) {
+      temp_array[i] = append_this[channel + i * num_channels_];
+    }
+    channels_[channel]->PushBack(temp_array, length_per_channel);
+  }
+  delete[] temp_array;
+}
+
+void AudioMultiVector::PushBack(const AudioMultiVector& append_this) {
+  RTC_DCHECK_EQ(num_channels_, append_this.num_channels_);
+  if (num_channels_ == append_this.num_channels_) {
+    for (size_t i = 0; i < num_channels_; ++i) {
+      channels_[i]->PushBack(append_this[i]);
+    }
+  }
+}
+
+void AudioMultiVector::PushBackFromIndex(const AudioMultiVector& append_this,
+                                         size_t index) {
+  RTC_DCHECK_LT(index, append_this.Size());
+  index = std::min(index, append_this.Size() - 1);
+  size_t length = append_this.Size() - index;
+  RTC_DCHECK_EQ(num_channels_, append_this.num_channels_);
+  if (num_channels_ == append_this.num_channels_) {
+    for (size_t i = 0; i < num_channels_; ++i) {
+      channels_[i]->PushBack(append_this[i], length, index);
+    }
+  }
+}
+
+void AudioMultiVector::PopFront(size_t length) {
+  for (size_t i = 0; i < num_channels_; ++i) {
+    channels_[i]->PopFront(length);
+  }
+}
+
+void AudioMultiVector::PopBack(size_t length) {
+  for (size_t i = 0; i < num_channels_; ++i) {
+    channels_[i]->PopBack(length);
+  }
+}
+
+size_t AudioMultiVector::ReadInterleaved(size_t length,
+                                         int16_t* destination) const {
+  return ReadInterleavedFromIndex(0, length, destination);
+}
+
+size_t AudioMultiVector::ReadInterleavedFromIndex(size_t start_index,
+                                                  size_t length,
+                                                  int16_t* destination) const {
+  RTC_DCHECK(destination);
+  size_t index = 0;  // Number of elements written to `destination` so far.
+  RTC_DCHECK_LE(start_index, Size());
+  start_index = std::min(start_index, Size());
+  if (length + start_index > Size()) {
+    length = Size() - start_index;
+  }
+  if (num_channels_ == 1) {
+    // Special case to avoid the nested for loop below.
+    (*this)[0].CopyTo(length, start_index, destination);
+    return length;
+  }
+  for (size_t i = 0; i < length; ++i) {
+    for (size_t channel = 0; channel < num_channels_; ++channel) {
+      destination[index] = (*this)[channel][i + start_index];
+      ++index;
+    }
+  }
+  return index;
+}
+
+size_t AudioMultiVector::ReadInterleavedFromEnd(size_t length,
+                                                int16_t* destination) const {
+  length = std::min(length, Size());  // Cannot read more than Size() elements.
+  return ReadInterleavedFromIndex(Size() - length, length, destination);
+}
+
+void AudioMultiVector::OverwriteAt(const AudioMultiVector& insert_this,
+                                   size_t length,
+                                   size_t position) {
+  RTC_DCHECK_EQ(num_channels_, insert_this.num_channels_);
+  // Cap `length` at the length of `insert_this`.
+  RTC_DCHECK_LE(length, insert_this.Size());
+  length = std::min(length, insert_this.Size());
+  if (num_channels_ == insert_this.num_channels_) {
+    for (size_t i = 0; i < num_channels_; ++i) {
+      channels_[i]->OverwriteAt(insert_this[i], length, position);
+    }
+  }
+}
+
+void AudioMultiVector::CrossFade(const AudioMultiVector& append_this,
+                                 size_t fade_length) {
+  RTC_DCHECK_EQ(num_channels_, append_this.num_channels_);
+  if (num_channels_ == append_this.num_channels_) {
+    for (size_t i = 0; i < num_channels_; ++i) {
+      channels_[i]->CrossFade(append_this[i], fade_length);
+    }
+  }
+}
+
+size_t AudioMultiVector::Channels() const {
+  return num_channels_;
+}
+
+size_t AudioMultiVector::Size() const {
+  RTC_DCHECK(channels_[0]);
+  return channels_[0]->Size();
+}
+
+void AudioMultiVector::AssertSize(size_t required_size) {
+  if (Size() < required_size) {
+    size_t extend_length = required_size - Size();
+    for (size_t channel = 0; channel < num_channels_; ++channel) {
+      channels_[channel]->Extend(extend_length);
+    }
+  }
+}
+
+bool AudioMultiVector::Empty() const {
+  RTC_DCHECK(channels_[0]);
+  return channels_[0]->Empty();
+}
+
+void AudioMultiVector::CopyChannel(size_t from_channel, size_t to_channel) {
+  RTC_DCHECK_LT(from_channel, num_channels_);
+  RTC_DCHECK_LT(to_channel, num_channels_);
+  channels_[from_channel]->CopyTo(channels_[to_channel]);
+}
+
+const AudioVector& AudioMultiVector::operator[](size_t index) const {
+  return *(channels_[index]);
+}
+
+AudioVector& AudioMultiVector::operator[](size_t index) {
+  return *(channels_[index]);
+}
+
+}  // namespace webrtc