blob: e1ba1de0fcb6ec13a3e774ee35a4004e95873a6a [file] [log] [blame]
/*
* Copyright (c) 2012 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 <stdio.h>
#include <stdlib.h>
#include <fstream>
#include <memory>
#include "testing/gtest/include/gtest/gtest.h"
#include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
#include "webrtc/test/testsupport/fileutils.h"
#include "webrtc/tools/frame_editing/frame_editing_lib.h"
namespace webrtc {
namespace test {
const int kWidth = 352;
const int kHeight = 288;
const size_t kFrameSize = CalcBufferSize(kI420, kWidth, kHeight);
class FrameEditingTest : public ::testing::Test {
protected:
virtual void SetUp() {
reference_video_ = ResourcePath("foreman_cif", "yuv");
test_video_ = webrtc::test::TempFilename(webrtc::test::OutputPath(),
"frame_editing_unittest.yuv");
original_fid_ = fopen(reference_video_.c_str(), "rb");
ASSERT_TRUE(original_fid_ != NULL);
// Ensure the output file exists on disk.
std::ofstream(test_video_.c_str(), std::ios::out);
// Open the output file for reading.
// TODO(holmer): Figure out why this file has to be opened here (test fails
// if it's opened after the write operation performed in EditFrames).
edited_fid_ = fopen(test_video_.c_str(), "rb");
ASSERT_TRUE(edited_fid_ != NULL);
original_buffer_.reset(new int[kFrameSize]);
edited_buffer_.reset(new int[kFrameSize]);
num_frames_read_ = 0;
}
virtual void TearDown() {
fclose(original_fid_);
fclose(edited_fid_);
remove(test_video_.c_str());
}
// Compares the frames in both streams to the end of one of the streams.
void CompareToTheEnd(FILE* test_video_fid,
FILE* ref_video_fid,
std::unique_ptr<int[]>* ref_buffer,
std::unique_ptr<int[]>* test_buffer) {
while (!feof(test_video_fid) && !feof(ref_video_fid)) {
num_bytes_read_ = fread(ref_buffer->get(), 1, kFrameSize, ref_video_fid);
if (!feof(ref_video_fid)) {
EXPECT_EQ(kFrameSize, num_bytes_read_);
}
num_bytes_read_ = fread(test_buffer->get(), 1, kFrameSize,
test_video_fid);
if (!feof(test_video_fid)) {
EXPECT_EQ(kFrameSize, num_bytes_read_);
}
if (!feof(test_video_fid) && !feof(test_video_fid)) {
EXPECT_EQ(0, memcmp(ref_buffer->get(), test_buffer->get(),
kFrameSize));
}
}
// There should not be anything left in either stream.
EXPECT_EQ(!feof(test_video_fid), !feof(ref_video_fid));
}
std::string reference_video_;
std::string test_video_;
FILE* original_fid_;
FILE* edited_fid_;
size_t num_bytes_read_;
std::unique_ptr<int[]> original_buffer_;
std::unique_ptr<int[]> edited_buffer_;
int num_frames_read_;
};
TEST_F(FrameEditingTest, ValidInPath) {
const int kFirstFrameToProcess = 160;
const int kInterval = -1;
const int kLastFrameToProcess = 240;
int result = EditFrames(reference_video_, kWidth, kHeight,
kFirstFrameToProcess, kInterval, kLastFrameToProcess,
test_video_);
EXPECT_EQ(0, result);
for (int i = 1; i < kFirstFrameToProcess; ++i) {
num_bytes_read_ = fread(original_buffer_.get(), 1, kFrameSize,
original_fid_);
EXPECT_EQ(kFrameSize, num_bytes_read_);
num_bytes_read_ = fread(edited_buffer_.get(), 1, kFrameSize, edited_fid_);
EXPECT_EQ(kFrameSize, num_bytes_read_);
EXPECT_EQ(0, memcmp(original_buffer_.get(), edited_buffer_.get(),
kFrameSize));
}
// Do not compare the frames that have been cut.
for (int i = kFirstFrameToProcess; i <= kLastFrameToProcess; ++i) {
num_bytes_read_ = fread(original_buffer_.get(), 1, kFrameSize,
original_fid_);
EXPECT_EQ(kFrameSize, num_bytes_read_);
}
CompareToTheEnd(edited_fid_, original_fid_, &original_buffer_,
&edited_buffer_);
}
TEST_F(FrameEditingTest, EmptySetToCut) {
const int kFirstFrameToProcess = 2;
const int kInterval = -1;
const int kLastFrameToProcess = 1;
int result = EditFrames(reference_video_, kWidth, kHeight,
kFirstFrameToProcess, kInterval, kLastFrameToProcess,
test_video_);
EXPECT_EQ(-10, result);
}
TEST_F(FrameEditingTest, InValidInPath) {
const std::string kRefVideo_ = "PATH/THAT/DOES/NOT/EXIST";
const int kFirstFrameToProcess = 30;
const int kInterval = 1;
const int kLastFrameToProcess = 120;
int result = EditFrames(kRefVideo_, kWidth, kHeight, kFirstFrameToProcess,
kInterval, kLastFrameToProcess, test_video_);
EXPECT_EQ(-11, result);
}
TEST_F(FrameEditingTest, DeletingEverySecondFrame) {
const int kFirstFrameToProcess = 1;
const int kInterval = -2;
const int kLastFrameToProcess = 10000;
// Set kLastFrameToProcess to a large value so that all frame are processed.
int result = EditFrames(reference_video_, kWidth, kHeight,
kFirstFrameToProcess, kInterval, kLastFrameToProcess,
test_video_);
EXPECT_EQ(0, result);
while (!feof(original_fid_) && !feof(edited_fid_)) {
num_bytes_read_ =
fread(original_buffer_.get(), 1, kFrameSize, original_fid_);
if (!feof(original_fid_)) {
EXPECT_EQ(kFrameSize, num_bytes_read_);
num_frames_read_++;
}
// We want to compare every second frame of the original to the edited.
// kInterval=-2 and (num_frames_read_ - 1) % kInterval will be -1 for
// every second frame.
// num_frames_read_ - 1 because we have deleted frame number 2, 4 , 6 etc.
if ((num_frames_read_ - 1) % kInterval == -1) {
num_bytes_read_ = fread(edited_buffer_.get(), 1, kFrameSize,
edited_fid_);
if (!feof(edited_fid_)) {
EXPECT_EQ(kFrameSize, num_bytes_read_);
}
if (!feof(original_fid_) && !feof(edited_fid_)) {
EXPECT_EQ(0, memcmp(original_buffer_.get(),
edited_buffer_.get(), kFrameSize));
}
}
}
}
TEST_F(FrameEditingTest, RepeatFrames) {
const int kFirstFrameToProcess = 160;
const int kInterval = 2;
const int kLastFrameToProcess = 240;
int result = EditFrames(reference_video_, kWidth, kHeight,
kFirstFrameToProcess, kInterval, kLastFrameToProcess,
test_video_);
EXPECT_EQ(0, result);
for (int i = 1; i < kFirstFrameToProcess; ++i) {
num_bytes_read_ = fread(original_buffer_.get(), 1, kFrameSize,
original_fid_);
EXPECT_EQ(kFrameSize, num_bytes_read_);
num_bytes_read_ = fread(edited_buffer_.get(), 1, kFrameSize, edited_fid_);
EXPECT_EQ(kFrameSize, num_bytes_read_);
EXPECT_EQ(0, memcmp(original_buffer_.get(), edited_buffer_.get(),
kFrameSize));
}
// Do not compare the frames that have been repeated.
for (int i = kFirstFrameToProcess; i <= kLastFrameToProcess; ++i) {
num_bytes_read_ = fread(original_buffer_.get(), 1, kFrameSize,
original_fid_);
EXPECT_EQ(kFrameSize, num_bytes_read_);
for (int i = 1; i <= kInterval; ++i) {
num_bytes_read_ = fread(edited_buffer_.get(), 1, kFrameSize,
edited_fid_);
EXPECT_EQ(kFrameSize, num_bytes_read_);
EXPECT_EQ(0, memcmp(original_buffer_.get(), edited_buffer_.get(),
kFrameSize));
}
}
CompareToTheEnd(edited_fid_, original_fid_, &original_buffer_,
&edited_buffer_);
}
} // namespace test
} // namespace webrtc