Adding upstream version 124.0.1.upstream/124.0.1

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

1 files changed, 120 insertions, 0 deletions

diff --git a/third_party/libwebrtc/rtc_tools/video_encoder/encoded_image_file_writer.cc b/third_party/libwebrtc/rtc_tools/video_encoder/encoded_image_file_writer.cc
new file mode 100644
index 0000000000..624bce3643
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/video_encoder/encoded_image_file_writer.cc
@@ -0,0 +1,120 @@
+/*
+ *  Copyright (c) 2023 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 "rtc_tools/video_encoder/encoded_image_file_writer.h"
+
+#include "modules/video_coding/svc/scalability_mode_util.h"
+#include "rtc_base/logging.h"
+
+namespace webrtc {
+namespace test {
+
+EncodedImageFileWriter::EncodedImageFileWriter(
+    const VideoCodec& video_codec_setting)
+    : video_codec_setting_(video_codec_setting) {
+  const char* codec_string =
+      CodecTypeToPayloadString(video_codec_setting.codecType);
+
+  // Retrieve scalability mode information.
+  absl::optional<ScalabilityMode> scalability_mode =
+      video_codec_setting.GetScalabilityMode();
+  RTC_CHECK(scalability_mode);
+  spatial_layers_ = ScalabilityModeToNumSpatialLayers(*scalability_mode);
+  temporal_layers_ = ScalabilityModeToNumTemporalLayers(*scalability_mode);
+  inter_layer_pred_mode_ =
+      ScalabilityModeToInterLayerPredMode(*scalability_mode);
+
+  RTC_CHECK_GT(spatial_layers_, 0);
+  RTC_CHECK_GT(temporal_layers_, 0);
+  // Create writer for every decode target.
+  for (int i = 0; i < spatial_layers_; ++i) {
+    for (int j = 0; j < temporal_layers_; ++j) {
+      char buffer[256];
+      rtc::SimpleStringBuilder name(buffer);
+      name << "output-" << codec_string << "-"
+           << ScalabilityModeToString(*scalability_mode) << "-L" << i << "T"
+           << j << ".ivf";
+
+      decode_target_writers_.emplace_back(std::make_pair(
+          IvfFileWriter::Wrap(FileWrapper::OpenWriteOnly(name.str()), 0),
+          name.str()));
+    }
+  }
+}
+
+EncodedImageFileWriter::~EncodedImageFileWriter() {
+  for (size_t i = 0; i < decode_target_writers_.size(); ++i) {
+    decode_target_writers_[i].first->Close();
+    RTC_LOG(LS_INFO) << "Written: " << decode_target_writers_[i].second;
+  }
+}
+
+int EncodedImageFileWriter::Write(const EncodedImage& encoded_image) {
+  // L1T1 does not set `SpatialIndex` and `TemporalIndex` in `EncodedImage`.
+  const int spatial_index = encoded_image.SpatialIndex().value_or(0);
+  const int temporal_index = encoded_image.TemporalIndex().value_or(0);
+  RTC_CHECK_LT(spatial_index, spatial_layers_);
+  RTC_CHECK_LT(temporal_index, temporal_layers_);
+
+  if (spatial_index == 0) {
+    is_base_layer_key_frame =
+        (encoded_image._frameType == VideoFrameType::kVideoFrameKey);
+  }
+
+  switch (inter_layer_pred_mode_) {
+    case InterLayerPredMode::kOff: {
+      // Write to this spatial layer.
+      for (int j = temporal_index; j < temporal_layers_; ++j) {
+        const int index = spatial_index * temporal_layers_ + j;
+        RTC_CHECK_LT(index, decode_target_writers_.size());
+
+        decode_target_writers_[index].first->WriteFrame(
+            encoded_image, video_codec_setting_.codecType);
+      }
+      break;
+    }
+
+    case InterLayerPredMode::kOn: {
+      // Write to this and higher spatial layers.
+      for (int i = spatial_index; i < spatial_layers_; ++i) {
+        for (int j = temporal_index; j < temporal_layers_; ++j) {
+          const int index = i * temporal_layers_ + j;
+          RTC_CHECK_LT(index, decode_target_writers_.size());
+
+          decode_target_writers_[index].first->WriteFrame(
+              encoded_image, video_codec_setting_.codecType);
+        }
+      }
+      break;
+    }
+
+    case InterLayerPredMode::kOnKeyPic: {
+      for (int i = spatial_index; i < spatial_layers_; ++i) {
+        for (int j = temporal_index; j < temporal_layers_; ++j) {
+          const int index = i * temporal_layers_ + j;
+          RTC_CHECK_LT(index, decode_target_writers_.size());
+
+          decode_target_writers_[index].first->WriteFrame(
+              encoded_image, video_codec_setting_.codecType);
+        }
+
+        // Write to higher spatial layers only if key frame.
+        if (!is_base_layer_key_frame) {
+          break;
+        }
+      }
+      break;
+    }
+  }
+
+  return 0;
+}
+
+}  // namespace test
+}  // namespace webrtc