1 files changed, 126 insertions, 0 deletions
diff --git a/third_party/libwebrtc/test/fake_decoder.cc b/third_party/libwebrtc/test/fake_decoder.cc
new file mode 100644
index 0000000000..53fce37de1
--- /dev/null
+++ b/third_party/libwebrtc/test/fake_decoder.cc
@@ -0,0 +1,126 @@
+/*
+ *  Copyright (c) 2013 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_decoder.h"
+
+#include <string.h>
+
+#include <memory>
+
+#include "api/scoped_refptr.h"
+#include "api/video/i420_buffer.h"
+#include "api/video/video_frame.h"
+#include "api/video/video_frame_buffer.h"
+#include "api/video/video_rotation.h"
+#include "modules/video_coding/include/video_error_codes.h"
+#include "rtc_base/checks.h"
+#include "rtc_base/task_queue.h"
+#include "rtc_base/time_utils.h"
+
+namespace webrtc {
+namespace test {
+
+FakeDecoder::FakeDecoder() : FakeDecoder(nullptr) {}
+
+FakeDecoder::FakeDecoder(TaskQueueFactory* task_queue_factory)
+    : callback_(nullptr),
+      width_(kDefaultWidth),
+      height_(kDefaultHeight),
+      task_queue_factory_(task_queue_factory),
+      decode_delay_ms_(0) {}
+
+bool FakeDecoder::Configure(const Settings& settings) {
+  return true;
+}
+
+int32_t FakeDecoder::Decode(const EncodedImage& input,
+                            bool missing_frames,
+                            int64_t render_time_ms) {
+  if (input._encodedWidth > 0 && input._encodedHeight > 0) {
+    width_ = input._encodedWidth;
+    height_ = input._encodedHeight;
+  }
+
+  rtc::scoped_refptr<I420Buffer> buffer = I420Buffer::Create(width_, height_);
+  I420Buffer::SetBlack(buffer.get());
+  VideoFrame frame = VideoFrame::Builder()
+                         .set_video_frame_buffer(buffer)
+                         .set_rotation(webrtc::kVideoRotation_0)
+                         .set_timestamp_ms(render_time_ms)
+                         .build();
+  frame.set_timestamp(input.Timestamp());
+  frame.set_ntp_time_ms(input.ntp_time_ms_);
+
+  if (decode_delay_ms_ == 0 || !task_queue_) {
+    callback_->Decoded(frame);
+  } else {
+    task_queue_->PostDelayedHighPrecisionTask(
+        [frame, this]() {
+          VideoFrame copy = frame;
+          callback_->Decoded(copy);
+        },
+        TimeDelta::Millis(decode_delay_ms_));
+  }
+
+  return WEBRTC_VIDEO_CODEC_OK;
+}
+
+void FakeDecoder::SetDelayedDecoding(int decode_delay_ms) {
+  RTC_CHECK(task_queue_factory_);
+  if (!task_queue_) {
+    task_queue_ = task_queue_factory_->CreateTaskQueue(
+        "fake_decoder", TaskQueueFactory::Priority::NORMAL);
+  }
+  decode_delay_ms_ = decode_delay_ms;
+}
+
+int32_t FakeDecoder::RegisterDecodeCompleteCallback(
+    DecodedImageCallback* callback) {
+  callback_ = callback;
+  return WEBRTC_VIDEO_CODEC_OK;
+}
+
+int32_t FakeDecoder::Release() {
+  return WEBRTC_VIDEO_CODEC_OK;
+}
+
+const char* FakeDecoder::kImplementationName = "fake_decoder";
+VideoDecoder::DecoderInfo FakeDecoder::GetDecoderInfo() const {
+  DecoderInfo info;
+  info.implementation_name = kImplementationName;
+  info.is_hardware_accelerated = true;
+  return info;
+}
+const char* FakeDecoder::ImplementationName() const {
+  return kImplementationName;
+}
+
+int32_t FakeH264Decoder::Decode(const EncodedImage& input,
+                                bool missing_frames,
+                                int64_t render_time_ms) {
+  uint8_t value = 0;
+  for (size_t i = 0; i < input.size(); ++i) {
+    uint8_t kStartCode[] = {0, 0, 0, 1};
+    if (i < input.size() - sizeof(kStartCode) &&
+        !memcmp(&input.data()[i], kStartCode, sizeof(kStartCode))) {
+      i += sizeof(kStartCode) + 1;  // Skip start code and NAL header.
+    }
+    if (input.data()[i] != value) {
+      RTC_CHECK_EQ(value, input.data()[i])
+          << "Bitstream mismatch between sender and receiver.";
+      return -1;
+    }
+    ++value;
+  }
+  return FakeDecoder::Decode(input, missing_frames, render_time_ms);
+}
+
+}  // namespace test
+}  // namespace webrtc