Reland "Add Y4mFileReader"
This is a reland of 404be7f302358e6be16aadeba8bc8f8aba348c0f
It adds support for reading .yuv files as well to not break anything.
Original change's description:
> Add Y4mFileReader
>
> Encapsulate logic for reading .y4m video files in a single class. We
> currently have spread out logic for opening .y4m files with partial
> parsing. This CL consolidates this logic into a single class with a well
> defined interface.
>
> Change-Id: Id61673b3c95a0053b30e95b4cf382e1c6b05fc30
> Bug: webrtc:9642
> Reviewed-on: https://webrtc-review.googlesource.com/94772
> Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
> Reviewed-by: Paulina Hensman <phensman@webrtc.org>
> Commit-Queue: Magnus Jedvert <magjed@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#24398}
TBR=phensman,phoglund
Bug: webrtc:9642
Change-Id: Idecc5ec5da767221a5f5b439989f4fe07e3b3615
Reviewed-on: https://webrtc-review.googlesource.com/97983
Commit-Queue: Magnus Jedvert <magjed@webrtc.org>
Reviewed-by: Magnus Jedvert <magjed@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24571}diff --git a/rtc_tools/video_file_reader_unittest.cc b/rtc_tools/video_file_reader_unittest.cc
new file mode 100644
index 0000000..7058e8d
--- /dev/null
+++ b/rtc_tools/video_file_reader_unittest.cc
@@ -0,0 +1,122 @@
+/*
+ * 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_reader.h"
+#include "test/gtest.h"
+#include "test/testsupport/fileutils.h"
+
+namespace webrtc {
+namespace test {
+
+class Y4mFileReaderTest : public ::testing::Test {
+ public:
+ void SetUp() override {
+ const std::string filename =
+ TempFilename(webrtc::test::OutputPath(), "test_video_file.y4m");
+
+ // Create simple test video of size 6x4.
+ FILE* file = fopen(filename.c_str(), "wb");
+ ASSERT_TRUE(file != nullptr);
+ fprintf(file, "YUV4MPEG2 W6 H4 F57:10 C420 dummyParam\n");
+ fprintf(file, "FRAME\n");
+
+ const int width = 6;
+ const int height = 4;
+ const int i40_size = width * height * 3 / 2;
+ // First frame.
+ for (int i = 0; i < i40_size; ++i)
+ fputc(static_cast<char>(i), file);
+ fprintf(file, "FRAME\n");
+ // Second frame.
+ for (int i = 0; i < i40_size; ++i)
+ fputc(static_cast<char>(i + i40_size), file);
+ fclose(file);
+
+ // Open the newly created file.
+ video = webrtc::test::OpenY4mFile(filename);
+ ASSERT_TRUE(video);
+ }
+
+ rtc::scoped_refptr<webrtc::test::Video> video;
+};
+
+TEST_F(Y4mFileReaderTest, TestParsingFileHeader) {
+ EXPECT_EQ(6, video->width());
+ EXPECT_EQ(4, video->height());
+}
+
+TEST_F(Y4mFileReaderTest, TestParsingNumberOfFrames) {
+ EXPECT_EQ(2u, video->number_of_frames());
+}
+
+TEST_F(Y4mFileReaderTest, TestPixelContent) {
+ int cnt = 0;
+ for (const rtc::scoped_refptr<I420BufferInterface> frame : *video) {
+ for (int i = 0; i < 6 * 4; ++i, ++cnt)
+ EXPECT_EQ(cnt, frame->DataY()[i]);
+ for (int i = 0; i < 3 * 2; ++i, ++cnt)
+ EXPECT_EQ(cnt, frame->DataU()[i]);
+ for (int i = 0; i < 3 * 2; ++i, ++cnt)
+ EXPECT_EQ(cnt, frame->DataV()[i]);
+ }
+}
+
+class YuvFileReaderTest : public ::testing::Test {
+ public:
+ void SetUp() override {
+ const std::string filename =
+ TempFilename(webrtc::test::OutputPath(), "test_video_file.yuv");
+
+ // Create simple test video of size 6x4.
+ FILE* file = fopen(filename.c_str(), "wb");
+ ASSERT_TRUE(file != nullptr);
+
+ const int width = 6;
+ const int height = 4;
+ const int i40_size = width * height * 3 / 2;
+ // First frame.
+ for (int i = 0; i < i40_size; ++i)
+ fputc(static_cast<char>(i), file);
+ // Second frame.
+ for (int i = 0; i < i40_size; ++i)
+ fputc(static_cast<char>(i + i40_size), file);
+ fclose(file);
+
+ // Open the newly created file.
+ video = webrtc::test::OpenYuvFile(filename, 6, 4);
+ ASSERT_TRUE(video);
+ }
+
+ rtc::scoped_refptr<webrtc::test::Video> video;
+};
+
+TEST_F(YuvFileReaderTest, TestParsingFileHeader) {
+ EXPECT_EQ(6, video->width());
+ EXPECT_EQ(4, video->height());
+}
+
+TEST_F(YuvFileReaderTest, TestParsingNumberOfFrames) {
+ EXPECT_EQ(2u, video->number_of_frames());
+}
+
+TEST_F(YuvFileReaderTest, TestPixelContent) {
+ int cnt = 0;
+ for (const rtc::scoped_refptr<I420BufferInterface> frame : *video) {
+ for (int i = 0; i < 6 * 4; ++i, ++cnt)
+ EXPECT_EQ(cnt, frame->DataY()[i]);
+ for (int i = 0; i < 3 * 2; ++i, ++cnt)
+ EXPECT_EQ(cnt, frame->DataU()[i]);
+ for (int i = 0; i < 3 * 2; ++i, ++cnt)
+ EXPECT_EQ(cnt, frame->DataV()[i]);
+ }
+}
+
+} // namespace test
+} // namespace webrtc