From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 02:47:55 +0200
Subject: Adding upstream version 124.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 third_party/libwebrtc/test/fake_vp8_encoder.cc | 130 +++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 third_party/libwebrtc/test/fake_vp8_encoder.cc

(limited to 'third_party/libwebrtc/test/fake_vp8_encoder.cc')

diff --git a/third_party/libwebrtc/test/fake_vp8_encoder.cc b/third_party/libwebrtc/test/fake_vp8_encoder.cc
new file mode 100644
index 0000000000..c16d7c351e
--- /dev/null
+++ b/third_party/libwebrtc/test/fake_vp8_encoder.cc
@@ -0,0 +1,130 @@
+/*
+ *  Copyright (c) 2018 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 "test/fake_vp8_encoder.h"
+
+#include <algorithm>
+
+#include "absl/types/optional.h"
+#include "api/video_codecs/video_encoder.h"
+#include "api/video_codecs/vp8_temporal_layers.h"
+#include "api/video_codecs/vp8_temporal_layers_factory.h"
+#include "modules/video_coding/codecs/interface/common_constants.h"
+#include "modules/video_coding/include/video_codec_interface.h"
+#include "modules/video_coding/include/video_error_codes.h"
+#include "modules/video_coding/utility/simulcast_utility.h"
+
+namespace {
+
+// Write width and height to the payload the same way as the real encoder does.
+// It requires that `payload` has a size of at least kMinPayLoadHeaderLength.
+void WriteFakeVp8(unsigned char* payload,
+                  int width,
+                  int height,
+                  bool key_frame) {
+  payload[0] = key_frame ? 0 : 0x01;
+
+  if (key_frame) {
+    payload[9] = (height & 0x3F00) >> 8;
+    payload[8] = (height & 0x00FF);
+
+    payload[7] = (width & 0x3F00) >> 8;
+    payload[6] = (width & 0x00FF);
+  }
+}
+}  // namespace
+
+namespace webrtc {
+
+namespace test {
+
+FakeVp8Encoder::FakeVp8Encoder(Clock* clock) : FakeEncoder(clock) {
+  sequence_checker_.Detach();
+}
+
+int32_t FakeVp8Encoder::InitEncode(const VideoCodec* config,
+                                   const Settings& settings) {
+  RTC_DCHECK_RUN_ON(&sequence_checker_);
+  auto result = FakeEncoder::InitEncode(config, settings);
+  if (result != WEBRTC_VIDEO_CODEC_OK) {
+    return result;
+  }
+
+  Vp8TemporalLayersFactory factory;
+  frame_buffer_controller_ =
+      factory.Create(*config, settings, &fec_controller_override_);
+
+  return WEBRTC_VIDEO_CODEC_OK;
+}
+
+int32_t FakeVp8Encoder::Release() {
+  auto result = FakeEncoder::Release();
+  sequence_checker_.Detach();
+  return result;
+}
+
+CodecSpecificInfo FakeVp8Encoder::PopulateCodecSpecific(
+    size_t size_bytes,
+    VideoFrameType frame_type,
+    int stream_idx,
+    uint32_t timestamp) {
+  RTC_DCHECK_RUN_ON(&sequence_checker_);
+  CodecSpecificInfo codec_specific;
+  codec_specific.codecType = kVideoCodecVP8;
+  codec_specific.codecSpecific.VP8.keyIdx = kNoKeyIdx;
+  codec_specific.codecSpecific.VP8.nonReference = false;
+  if (size_bytes > 0) {
+    frame_buffer_controller_->OnEncodeDone(
+        stream_idx, timestamp, size_bytes,
+        frame_type == VideoFrameType::kVideoFrameKey, -1, &codec_specific);
+  } else {
+    frame_buffer_controller_->OnFrameDropped(stream_idx, timestamp);
+  }
+  return codec_specific;
+}
+
+CodecSpecificInfo FakeVp8Encoder::EncodeHook(
+    EncodedImage& encoded_image,
+    rtc::scoped_refptr<EncodedImageBuffer> buffer) {
+  RTC_DCHECK_RUN_ON(&sequence_checker_);
+  uint8_t simulcast_index = encoded_image.SimulcastIndex().value_or(0);
+  frame_buffer_controller_->NextFrameConfig(simulcast_index,
+                                            encoded_image.RtpTimestamp());
+  CodecSpecificInfo codec_specific =
+      PopulateCodecSpecific(encoded_image.size(), encoded_image._frameType,
+                            simulcast_index, encoded_image.RtpTimestamp());
+
+  // Write width and height to the payload the same way as the real encoder
+  // does.
+  WriteFakeVp8(buffer->data(), encoded_image._encodedWidth,
+               encoded_image._encodedHeight,
+               encoded_image._frameType == VideoFrameType::kVideoFrameKey);
+  return codec_specific;
+}
+
+VideoEncoder::EncoderInfo FakeVp8Encoder::GetEncoderInfo() const {
+  EncoderInfo info;
+  info.implementation_name = "FakeVp8Encoder";
+  MutexLock lock(&mutex_);
+  for (int sid = 0; sid < config_.numberOfSimulcastStreams; ++sid) {
+    int number_of_temporal_layers =
+        config_.simulcastStream[sid].numberOfTemporalLayers;
+    info.fps_allocation[sid].clear();
+    for (int tid = 0; tid < number_of_temporal_layers; ++tid) {
+      // {1/4, 1/2, 1} allocation for num layers = 3.
+      info.fps_allocation[sid].push_back(255 /
+                                         (number_of_temporal_layers - tid));
+    }
+  }
+  return info;
+}
+
+}  // namespace test
+}  // namespace webrtc
-- 
cgit v1.2.3