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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include "itkVideoStream.h"
// Set up typedefs
static ITK_CONSTEXPR_VAR unsigned int Dimension = 2;
typedef unsigned char PixelType;
typedef itk::Image< PixelType, Dimension > FrameType;
typedef itk::VideoStream< FrameType > VideoType;
typedef itk::SizeValueType SizeValueType;
/** Set up a spatial region with the given dimensions */
FrameType::RegionType SetUpSpatialRegion(unsigned int x, unsigned int y)
{
FrameType::RegionType out;
FrameType::RegionType::SizeType size;
FrameType::RegionType::IndexType start;
size[0] = x;
size[1] = y;
start.Fill( 0 );
out.SetSize( size );
out.SetIndex( start );
return out;
}
/**
* Test the basic functionality of temporal data objects
*/
int itkVideoStreamTest( int, char* [] )
{
//////
// Test Instantiation and grafting
//////
// Instantiate a new VideoStream
VideoType::Pointer video1 = VideoType::New();
// Check dimension
if (video1->GetFrameDimension() != Dimension)
{
std::cerr << "GetFrameDimesion failed" << std::endl;
return EXIT_FAILURE;
}
if (VideoType::FrameDimension != Dimension)
{
std::cerr << "VideoType::FrameDimension failed" << std::endl;
return EXIT_FAILURE;
}
// Create a second VideoStream
VideoType::Pointer video2 = VideoType::New();
// Use GetFrameBuffer and SetFrameBuffer to make video1 point to the same
// buffer as video2
video1->SetFrameBuffer(video2->GetFrameBuffer() );
if (video1->GetFrameBuffer() != video2->GetFrameBuffer() )
{
std::cerr << "Failed to properly Get/Set frame buffer" << std::endl;
return EXIT_FAILURE;
}
// Reset video1
video1 = VideoType::New();
// Set up regions for video2
itk::TemporalRegion largestRegion;
itk::TemporalRegion requestedRegion;
itk::TemporalRegion bufferedRegion;
largestRegion.SetFrameStart(0);
largestRegion.SetFrameDuration(10);
requestedRegion.SetFrameStart(1);
requestedRegion.SetFrameDuration(8);
bufferedRegion.SetFrameStart(0);
bufferedRegion.SetFrameDuration(3);
video2->SetLargestPossibleTemporalRegion(largestRegion);
video2->SetRequestedTemporalRegion(requestedRegion);
video2->SetBufferedTemporalRegion(bufferedRegion);
// Test setting number of buffers on video2
VideoType::BufferType::Pointer frameBuffer = video2->GetFrameBuffer();
frameBuffer->SetNumberOfBuffers(4);
// Check that number of buffers got set right
frameBuffer = video2->GetFrameBuffer();
if (frameBuffer->GetNumberOfBuffers() != 4)
{
std::cerr << "Number of buffers not correctly set" << std::endl;
return EXIT_FAILURE;
}
// Test appending frames to video2
FrameType::Pointer frame1 = FrameType::New();
FrameType::Pointer frame2 = FrameType::New();
FrameType::Pointer frame3 = FrameType::New();
video2->SetFrame(0, frame1);
video2->SetFrame(1, frame2);
video2->SetFrame(2, frame3);
// Test retreiving frames
FrameType::Pointer outFrame1 = video2->GetFrame(0);
FrameType::Pointer outFrame2 = video2->GetFrame(1);
FrameType::Pointer outFrame3 = video2->GetFrame(2);
if (outFrame3 != frame3 || outFrame2 != frame2 || outFrame1 != frame1)
{
std::cerr << "Frames not retreived correctly" << std::endl;
return EXIT_FAILURE;
}
// Make sure frames actually got buffered
if (!frameBuffer->BufferIsFull(0) ||
!frameBuffer->BufferIsFull(1) ||
!frameBuffer->BufferIsFull(2) ||
frameBuffer->BufferIsFull(3) )
{
std::cerr << "Frames not correctly appended" << std::endl;
return EXIT_FAILURE;
}
// Graft video2 onto video1 and check results
video1->Graft(video2);
if (video1->GetLargestPossibleTemporalRegion() != video2->GetLargestPossibleTemporalRegion() ||
video1->GetRequestedTemporalRegion() != video2->GetRequestedTemporalRegion() ||
video1->GetBufferedTemporalRegion() != video2->GetBufferedTemporalRegion() )
{
std::cerr << "Graft failed to copy meta information" << std::endl;
return EXIT_FAILURE;
}
if (video1->GetFrameBuffer() != video2->GetFrameBuffer() )
{
std::cerr << "Graft failed to graft frame buffer" << std::endl;
return EXIT_FAILURE;
}
// For good measure, make sure that video1's frame buffer has 4 buffers
if (video1->GetFrameBuffer()->GetNumberOfBuffers() != 4)
{
std::cerr << "Problem with graft's handling of frame buffer" << std::endl;
return EXIT_FAILURE;
}
//////
// Test Initialization, region setting, and allocation
//////
video1 = VideoType::New();
// Set the buffered temporal region
VideoType::TemporalRegionType temporalRegion;
SizeValueType startFrame = 0;
SizeValueType numFrames = 5;
temporalRegion.SetFrameStart( startFrame );
temporalRegion.SetFrameDuration( numFrames );
video1->SetLargestPossibleTemporalRegion( temporalRegion );
video1->SetRequestedTemporalRegion( temporalRegion );
video1->SetBufferedTemporalRegion( temporalRegion );
// Initialize all frames in the buffered temporal region
video1->InitializeEmptyFrames();
// Set the buffered spatial region for each frame
FrameType::RegionType largestSpatialRegion = SetUpSpatialRegion(100, 100);
FrameType::RegionType requestedSpatialRegion = SetUpSpatialRegion(40, 40);
FrameType::RegionType bufferedSpatialRegion = SetUpSpatialRegion(50, 40);
video1->SetAllLargestPossibleSpatialRegions( largestSpatialRegion );
video1->SetAllRequestedSpatialRegions( requestedSpatialRegion );
video1->SetAllBufferedSpatialRegions( bufferedSpatialRegion );
// Make sure regions were set correctly
for (SizeValueType i = startFrame; i < startFrame + numFrames; ++i)
{
if (video1->GetFrameLargestPossibleSpatialRegion(i) != largestSpatialRegion)
{
std::cerr << "Frame " << i << " largest possible spatial region not set correctly"
<< std::endl;
return EXIT_FAILURE;
}
if (video1->GetFrameRequestedSpatialRegion(i) != requestedSpatialRegion)
{
std::cerr << "Frame " << i << " requested spatial region not set correctly"
<< std::endl;
return EXIT_FAILURE;
}
if (video1->GetFrameBufferedSpatialRegion(i) != bufferedSpatialRegion)
{
std::cerr << "Frame " << i << " buffered spatial region not set correctly"
<< std::endl;
return EXIT_FAILURE;
}
}
// Allocate memory for the frames
video1->Allocate();
// Try to set and get a pixel on each frame
FrameType::IndexType idx;
idx[0] = 49;
idx[1] = 39;
for (SizeValueType i = startFrame; i < startFrame + numFrames; ++i)
{
FrameType* frame = video1->GetFrame(i);
frame->SetPixel(idx, i);
}
for (SizeValueType i = startFrame; i < startFrame + numFrames; ++i)
{
FrameType* frame = video1->GetFrame(i);
if (frame->GetPixel(idx) != i)
{
std::cerr << "Error setting/getting pixel for frame " << i << std::endl;
return EXIT_FAILURE;
}
}
//////
// Test InitializeNewFrames with larger requested region. Make sure buffered
// frames are still valid
//////
temporalRegion.SetFrameDuration(temporalRegion.GetFrameDuration() + 1);
video1->SetLargestPossibleTemporalRegion(temporalRegion);
video1->SetRequestedTemporalRegion(temporalRegion);
video1->InitializeEmptyFrames();
for (SizeValueType i = startFrame; i < startFrame + numFrames; ++i)
{
FrameType* frame = video1->GetFrame(i);
if (frame->GetPixel(idx) != i)
{
std::cerr << "Error setting/getting pixel for frame " << i << std::endl;
return EXIT_FAILURE;
}
}
//////
// Test meta data caching
//////
// Reset video1
video1 = VideoType::New();
itk::TemporalRegion tempReg = video1->GetLargestPossibleTemporalRegion();
if (tempReg.GetFrameStart() != 0 || tempReg.GetFrameDuration() != 0)
{
std::cerr << "video1 initialized with non-empty temporal region" << std::endl;
return EXIT_FAILURE;
}
// Set the cached meta-data for a non-buffered frame
FrameType::RegionType spatReg;
FrameType::RegionType::SizeType sz;
FrameType::RegionType::IndexType start;
FrameType::SpacingType space;
FrameType::PointType orgn;
FrameType::DirectionType direction;
sz[0] = 10;
sz[1] = 20;
start.Fill(0);
spatReg.SetSize(sz);
spatReg.SetIndex(start);
space[0] = 0.1;
space[1] = 0.5;
orgn[0] = 5.432;
orgn[1] = -23.4;
direction[0][0] = 1;
direction[0][1] = 2;
direction[1][0] = -2;
direction[1][1] = 1;
video1->SetFrameLargestPossibleSpatialRegion(0, spatReg);
video1->SetFrameRequestedSpatialRegion(0, spatReg);
video1->SetFrameBufferedSpatialRegion(0, spatReg);
video1->SetFrameSpacing(0, space);
video1->SetFrameOrigin(0, orgn);
video1->SetFrameDirection(0, direction);
// Check retrieval while still unbuffered
if (video1->GetFrameLargestPossibleSpatialRegion(0) != spatReg)
{
std::cerr << "video1 LargestPossibleSpatialRegion not cached correctly" << std::endl;
return EXIT_FAILURE;
}
if (video1->GetFrameRequestedSpatialRegion(0) != spatReg)
{
std::cerr << "video1 RequestedSpatialRegion not cached correctly" << std::endl;
return EXIT_FAILURE;
}
if (video1->GetFrameBufferedSpatialRegion(0) != spatReg)
{
std::cerr << "video1 BufferedSpatialRegion not cached correctly" << std::endl;
return EXIT_FAILURE;
}
if (video1->GetFrameSpacing(0) != space)
{
std::cerr << "video1 Spacing not cached correctly" << std::endl;
return EXIT_FAILURE;
}
if (video1->GetFrameOrigin(0) != orgn)
{
std::cerr << "video1 Origin not cached correctly" << std::endl;
return EXIT_FAILURE;
}
if (video1->GetFrameDirection(0) != direction)
{
std::cerr << "video1 Direction not cached correctly" << std::endl;
return EXIT_FAILURE;
}
// Check meta data after frame initialized
tempReg.SetFrameStart(0);
tempReg.SetFrameDuration(1);
video1->SetLargestPossibleTemporalRegion(tempReg);
video1->SetRequestedTemporalRegion(tempReg);
video1->SetBufferedTemporalRegion(tempReg);
video1->InitializeEmptyFrames();
FrameType* frame = video1->GetFrame(0);
if (frame->GetLargestPossibleRegion() != spatReg)
{
std::cerr << "frame LargestPossibleRegion not initialized correctly" << std::endl;
return EXIT_FAILURE;
}
if (frame->GetRequestedRegion() != spatReg)
{
std::cerr << "frame RequestedRegion not initialized correctly" << std::endl;
return EXIT_FAILURE;
}
if (frame->GetBufferedRegion() != spatReg)
{
std::cerr << "frame BufferedRegion not initialized correctly" << std::endl;
return EXIT_FAILURE;
}
if (frame->GetSpacing() != space)
{
std::cerr << "frame Spacing not initialized correctly" << std::endl;
return EXIT_FAILURE;
}
if (frame->GetOrigin() != orgn)
{
std::cerr << "frame Origin not initialized correctly" << std::endl;
return EXIT_FAILURE;
}
if (frame->GetDirection() != direction)
{
std::cerr << "frame Direction not initialized correctly" << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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