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/**
* @file
* @brief Unit tests for openshot::DummyReader
* @author Jonathan Thomas <jonathan@openshot.org>
*
* @ref License
*/
/* LICENSE
*
* Copyright (c) 2008-2019 OpenShot Studios, LLC
* <http://www.openshotstudios.com/>. This file is part of
* OpenShot Library (libopenshot), an open-source project dedicated to
* delivering high quality video editing and animation solutions to the
* world. For more information visit <http://www.openshot.org/>.
*
* OpenShot Library (libopenshot) is free software: you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* OpenShot Library (libopenshot) is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <memory>
#include <catch2/catch.hpp>
#include "DummyReader.h"
#include "Exceptions.h"
#include "CacheMemory.h"
#include "Fraction.h"
#include "Frame.h"
TEST_CASE( "Default constructor", "[libopenshot][dummyreader]" ) {
// Create a default fraction (should be 1/1)
openshot::DummyReader r;
r.Open(); // Open the reader
// Check values
CHECK(r.info.width == 1280);
CHECK(r.info.height == 768);
CHECK(r.info.fps.num == 24);
CHECK(r.info.fps.den == 1);
CHECK(r.info.sample_rate == 44100);
CHECK(r.info.channels == 2);
CHECK(r.info.duration == 30.0);
CHECK(r.Name() == "DummyReader");
auto cache = r.GetCache();
CHECK(cache == nullptr);
}
TEST_CASE( "Constructor", "[libopenshot][dummyreader]" ) {
// Create a default fraction (should be 1/1)
openshot::DummyReader r(openshot::Fraction(30, 1), 1920, 1080, 44100, 2, 60.0);
r.Open(); // Open the reader
// Check values
CHECK(r.info.width == 1920);
CHECK(r.info.height == 1080);
CHECK(r.info.fps.num == 30);
CHECK(r.info.fps.den == 1);
CHECK(r.info.sample_rate == 44100);
CHECK(r.info.channels == 2);
CHECK(r.info.duration == 60.0);
}
TEST_CASE( "Blank_Frame", "[libopenshot][dummyreader]" ) {
// Create a default fraction (should be 1/1)
openshot::DummyReader r(openshot::Fraction(30, 1), 1920, 1080, 44100, 2, 30.0);
r.Open(); // Open the reader
// Get a blank frame (because we have not passed a Cache object (full of Frame objects) to the constructor
// Check values
CHECK(r.GetFrame(1)->number == 1);
CHECK(r.GetFrame(1)->GetPixels(700)[700] == 0); // black pixel
CHECK(r.GetFrame(1)->GetPixels(701)[701] == 0); // black pixel
}
TEST_CASE( "Fake_Frame", "[libopenshot][dummyreader]" ) {
// Create cache object to hold test frames
openshot::CacheMemory cache;
// Let's create some test frames
for (int64_t frame_number = 1; frame_number <= 30; frame_number++) {
// Create blank frame (with specific frame #, samples, and channels)
// Sample count should be 44100 / 30 fps = 1470 samples per frame
int sample_count = 1470;
auto f = std::make_shared<openshot::Frame>(frame_number, sample_count, 2);
// Create test samples with incrementing value
float *audio_buffer = new float[sample_count];
for (int64_t sample_number = 0; sample_number < sample_count; sample_number++) {
// Generate an incrementing audio sample value (just as an example)
audio_buffer[sample_number] = float(frame_number) + (float(sample_number) / float(sample_count));
}
// Add custom audio samples to Frame (bool replaceSamples, int destChannel, int destStartSample, const float* source,
f->AddAudio(true, 0, 0, audio_buffer, sample_count, 1.0); // add channel 1
f->AddAudio(true, 1, 0, audio_buffer, sample_count, 1.0); // add channel 2
// Add test frame to dummy reader
cache.Add(f);
delete[] audio_buffer;
}
// Create a default fraction (should be 1/1)
openshot::DummyReader r(openshot::Fraction(30, 1), 1920, 1080, 44100, 2, 30.0, &cache);
r.Open(); // Open the reader
// Verify our artificial audio sample data is correct
CHECK(r.GetFrame(1)->number == 1);
CHECK(r.GetFrame(1)->GetAudioSamples(0)[0] == 1);
CHECK(r.GetFrame(1)->GetAudioSamples(0)[1] == Approx(1.00068033).margin(0.00001));
CHECK(r.GetFrame(1)->GetAudioSamples(0)[2] == Approx(1.00136054).margin(0.00001));
CHECK(r.GetFrame(2)->GetAudioSamples(0)[0] == 2);
CHECK(r.GetFrame(2)->GetAudioSamples(0)[1] == Approx(2.00068033).margin(0.00001));
CHECK(r.GetFrame(2)->GetAudioSamples(0)[2] == Approx(2.00136054).margin(0.00001));
// Clean up
cache.Clear();
r.Close();
}
TEST_CASE( "Invalid_Fake_Frame", "[libopenshot][dummyreader]" ) {
// Create fake frames (with specific frame #, samples, and channels)
auto f1 = std::make_shared<openshot::Frame>(1, 1470, 2);
auto f2 = std::make_shared<openshot::Frame>(2, 1470, 2);
// Add test frames to cache object
openshot::CacheMemory cache;
cache.Add(f1);
cache.Add(f2);
// Create a default fraction (should be 1/1)
openshot::DummyReader r(openshot::Fraction(30, 1), 1920, 1080, 44100, 2, 30.0, &cache);
r.Open();
// Verify exception
CHECK(r.GetFrame(1)->number == 1);
CHECK(r.GetFrame(2)->number == 2);
CHECK_THROWS_AS(r.GetFrame(3)->number, openshot::InvalidFile);
// Clean up
cache.Clear();
r.Close();
}
TEST_CASE( "Json", "[libopenshot][dummyreader]") {
openshot::DummyReader r1;
openshot::DummyReader r2(openshot::Fraction(24, 1), 1280, 768, 44100, 2, 30.0);
auto json1 = r1.Json();
auto json2 = r2.JsonValue();
auto json_string2 = json2.toStyledString();
CHECK(json_string2 == json1);
}
TEST_CASE( "SetJson", "[libopenshot][dummyreader]") {
openshot::DummyReader r1;
std::stringstream json_stream;
json_stream << R"json(
{
"width": 1920,
"height": 1080,
"fps": { "num": 15, "den": 1 },
"duration": 15.0
}
)json";
r1.SetJson(json_stream.str());
CHECK(r1.info.width == 1920);
CHECK(r1.info.height == 1080);
CHECK(r1.info.fps.num == 15);
CHECK(r1.info.fps.den == 1);
CHECK(r1.info.duration == 15.0);
}
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