1 files changed, 151 insertions, 0 deletions
diff --git a/third_party/libwebrtc/rtc_tools/video_file_writer_unittest.cc b/third_party/libwebrtc/rtc_tools/video_file_writer_unittest.cc
new file mode 100644
index 0000000000..c4afa8fe06
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/video_file_writer_unittest.cc
@@ -0,0 +1,151 @@
+/*
+ *  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 "rtc_tools/video_file_writer.h"
+
+#include <stdint.h>
+
+#include <cstdio>
+#include <string>
+
+#include "api/video/video_frame_buffer.h"
+#include "rtc_tools/video_file_reader.h"
+#include "test/gtest.h"
+#include "test/testsupport/file_utils.h"
+
+namespace webrtc {
+namespace test {
+
+class VideoFileWriterTest : public ::testing::Test {
+ public:
+  void SetUp() override {
+    video_filename_ =
+        TempFilename(webrtc::test::OutputPath(), "test_video_file.y4m");
+
+    // Create simple test video of size 6x4.
+    FILE* file = fopen(video_filename_.c_str(), "wb");
+    ASSERT_TRUE(file != nullptr);
+    fprintf(file, "YUV4MPEG2 W6 H4 F60:1 C420 dummyParam\n");
+    fprintf(file, "FRAME\n");
+
+    const int i420_size = width * height * 3 / 2;
+    // First frame.
+    for (int i = 0; i < i420_size; ++i)
+      fputc(static_cast<char>(i), file);
+    fprintf(file, "FRAME\n");
+    // Second frame.
+    for (int i = 0; i < i420_size; ++i)
+      fputc(static_cast<char>(i + i420_size), file);
+    fclose(file);
+
+    // Open the newly created file.
+    video_ = webrtc::test::OpenY4mFile(video_filename_);
+    ASSERT_TRUE(video_);
+    ASSERT_EQ(video_->number_of_frames(), 2u);
+  }
+
+  void TearDown() override {
+    if (!video_filename_.empty()) {
+      RemoveFile(video_filename_);
+    }
+    if (!written_video_filename_.empty()) {
+      RemoveFile(written_video_filename_);
+    }
+  }
+
+  // Write and read Y4M file.
+  void WriteVideoY4m() {
+    // Cleanup existing file if any.
+    if (!written_video_filename_.empty()) {
+      RemoveFile(written_video_filename_);
+    }
+    // Create an unique filename, e.g. test_video_file2.y4mZapata.
+    written_video_filename_ =
+        TempFilename(webrtc::test::OutputPath(), "test_video_file2.y4m");
+    webrtc::test::WriteY4mVideoToFile(video_, written_video_filename_, fps);
+    written_video_ = webrtc::test::OpenY4mFile(written_video_filename_);
+    ASSERT_TRUE(written_video_);
+  }
+
+  // Write and read YUV file.
+  void WriteVideoYuv() {
+    // Cleanup existing file if any.
+    if (!written_video_filename_.empty()) {
+      RemoveFile(written_video_filename_);
+    }
+    // Create an unique filename, e.g. test_video_file2.yuvZapata.
+    written_video_filename_ =
+        TempFilename(webrtc::test::OutputPath(), "test_video_file2.yuv");
+    webrtc::test::WriteYuvVideoToFile(video_, written_video_filename_, fps);
+    written_video_ =
+        webrtc::test::OpenYuvFile(written_video_filename_, width, height);
+    ASSERT_TRUE(written_video_);
+  }
+
+  const int width = 6;
+  const int height = 4;
+  const int fps = 60;
+  rtc::scoped_refptr<webrtc::test::Video> video_;
+  rtc::scoped_refptr<webrtc::test::Video> written_video_;
+  // Each video object must be backed by file!
+  std::string video_filename_;
+  std::string written_video_filename_;
+};
+
+TEST_F(VideoFileWriterTest, TestParsingFileHeaderY4m) {
+  WriteVideoY4m();
+  EXPECT_EQ(video_->width(), written_video_->width());
+  EXPECT_EQ(video_->height(), written_video_->height());
+}
+
+TEST_F(VideoFileWriterTest, TestParsingFileHeaderYuv) {
+  WriteVideoYuv();
+  EXPECT_EQ(video_->width(), written_video_->width());
+  EXPECT_EQ(video_->height(), written_video_->height());
+}
+
+TEST_F(VideoFileWriterTest, TestParsingNumberOfFramesY4m) {
+  WriteVideoY4m();
+  EXPECT_EQ(video_->number_of_frames(), written_video_->number_of_frames());
+}
+
+TEST_F(VideoFileWriterTest, TestParsingNumberOfFramesYuv) {
+  WriteVideoYuv();
+  EXPECT_EQ(video_->number_of_frames(), written_video_->number_of_frames());
+}
+
+TEST_F(VideoFileWriterTest, TestPixelContentY4m) {
+  WriteVideoY4m();
+  int cnt = 0;
+  for (const rtc::scoped_refptr<I420BufferInterface> frame : *written_video_) {
+    for (int i = 0; i < width * height; ++i, ++cnt)
+      EXPECT_EQ(cnt, frame->DataY()[i]);
+    for (int i = 0; i < width / 2 * height / 2; ++i, ++cnt)
+      EXPECT_EQ(cnt, frame->DataU()[i]);
+    for (int i = 0; i < width / 2 * height / 2; ++i, ++cnt)
+      EXPECT_EQ(cnt, frame->DataV()[i]);
+  }
+}
+
+TEST_F(VideoFileWriterTest, TestPixelContentYuv) {
+  WriteVideoYuv();
+  int cnt = 0;
+  for (const rtc::scoped_refptr<I420BufferInterface> frame : *written_video_) {
+    for (int i = 0; i < width * height; ++i, ++cnt)
+      EXPECT_EQ(cnt, frame->DataY()[i]);
+    for (int i = 0; i < width / 2 * height / 2; ++i, ++cnt)
+      EXPECT_EQ(cnt, frame->DataU()[i]);
+    for (int i = 0; i < width / 2 * height / 2; ++i, ++cnt)
+      EXPECT_EQ(cnt, frame->DataV()[i]);
+  }
+}
+
+}  // namespace test
+}  // namespace webrtc