Description
Purpose: This is a development of assignment 2 with the addition of two additional classes AudioFrame and VideoFrame that are derived from the abstract base class Frame and implement polymorphic inheritance. It is a console application that has an AnimationManager that holds a vector template of Animation objects each of which holds a forward_list template of Frame* each of which points to either an AudioFrame or a VideoFrame.
Polymorphism is implemented via the pure virtual function void Frame::CalculateFrameResources() of the abstract base class. The string class is used for all the strings in the application. Part of the code is shown on the next page; it is also on Brightspace in a text file that you can copy and paste. Because I will use this code when I test your submission, you MUST use this code without modification (not a single character changed): no code added or removed, no new global variables or functions, no new classes, no macros, no defines, no #includes and no statics.
Your task is to implement, using C++, only the AnimationManager, Animation, Frame, AudioFrame and VideoFrame class member functions and the global insertion and extraction operators and not add any new ones. Everything you write and submit is in the files: AnimationManager.cpp, Animation.cpp,
Frame.cpp, AudioFrame.cpp and VideoFrame.cpp. When the application runs you can: Add a new Animation to the AnimationManager at the back of the vector Delete a particular Animation Edit a particular Animation to maintain its forward_list of Frame*. List the AnimationManager to show all its Animations and their Frames
Quit An example of the output of the running application is given at the end. Yours must work identically and produce identical output. Note the following: dynamic memory management is done with new and delete there is no unused dynamic memory at any time input/output is done with cin and cout string objects are used to hold names Release of objects’ dynamically allocated memory is done in destructors so there is no resource leak (or you lose 30%) – destructors are never explicitly called.
Note that the forward_list of Frame* are actually pointers to either AudioFrame or VideoFrame objects. These objects calculate the memory to hold their files using the arrays of constants defined in their classes:
1. AudioFrame: file size equals size / (COMPRESSION_RATIO[i])
2. VideoFrame: file size equals size / (COMPRESSION_RATIO*BITDEPTH_FACTOR[i]) Polymorphism then works through the polymorphic function CalculateFrameResource() that is overridden differently for each of them. The essential code that you must use in the overloaded insertion operator friend function of the Animation class to output the compression details of all its frames is: for (it = RA.frames.begin(); it != RA.frames.end(); it++) (*it)->CalculateFrameResource() where the actual pointer (AudioFrame* or VideoFrame*) pointed to is not evident in the code, but the right version of CalculateFrameResource() gets called by polymorphism.
2 See the Marking Sheet for how you can lose marks, but you will lose marks if: 1. [60% penalty] You change the supplied code in any way at all (not a single character) – no code added or removed, no macros, no #defines, no statics and no additional classes, global functions or variables, 2. [>= 60% penalty] It fails to build in Visual Studio 2019, 3. [30% penalty] It crashes in normal operation, 4. It doesn’t produce the example output. You should check the input to lie within a valid range and check the correct functionality of all menu items even if they aren’t actually shown tested in the example output below. Part of the code is shown on the next page.
You MUST use this code without modification. Your task is to add the implementation of the class member functions and friend global functions. What to Submit : Submit this assignment in the link on the Brightspace site under lab section you are in (Activities/Assignments), as a plain zip file (not RAR or 7-Zip or 9 Zip) containing only AnimationManager.cpp, Animation.cpp, Frame.cpp AudioFrame.cpp and VideoFrame.cpp. No other files.
The name of the zipped folder must contain your name as a prefix so that I can identify it, for example using my name the file would be tyleraAssign3CST8219.zip. It is also vital that you include file headers (as specified in the Submission Standard) in your source files so they can be identified as yours. Before you submit the code, check that it builds and executes in Visual Studio 2019 as you expect – if it doesn’t build for me, for whatever reason, you get a deduction of at least 60%. make sure you have submitted the correct file – if I cannot build it because the file is wrong or missing from the zip, even if it’s an honest mistake, you get 0.
Because of Finals this cannot be late. Don’t send me files as an email attachments – they will get 0. Supplied code (also in a text file on Brightspace you can copy and paste). Don’t change it. //Frame.h #pragma once class Frame { string frameName; protected: double size; public: Frame(string name, double sz) :frameName(name), size(sz) {}; virtual ~Frame() {}; virtual void CalculateFrameResource() = 0; friend ostream& operator<<(ostream&, Frame&); }; //AudioFrame.h #pragma once class AudioFrame :public Frame { static const int RATES = 3; static constexpr double BITRATE[]{128,160,192}; static
constexpr double COMPRESSION_RATIO[]{11.1,9.1,7.1}; void CalculateFrameResource(); public: AudioFrame(string frameName, double fileSize) :Frame(frameName,fileSize) {} AudioFrame(const AudioFrame& RA) : Frame(RA) {} ~AudioFrame(){} friend ostream& operator<<(ostream&, AudioFrame&); }; // VideoFrame.h #pragma once class VideoFrame :public Frame { static const int BITS = 8; static
constexpr double COMPRESSION_RATIO = 6.0; static constexpr double BITDEPTH_FACTOR[]{ 11.1,4.6,3.5,2.4,1.9,1.5,1.2,1.0 }; void CalculateFrameResource(); public: VideoFrame(string fileName, double fileSize ) :Frame(fileName, fileSize) {} VideoFrame(const VideoFrame& RV) :Frame(RV) {} ~VideoFrame() {} friend ostream& operator<<(ostream&, VideoFrame&); }; //Animation.h #pragma once class Animation {
3 string animationName; forward_list<Frame*> frames; public: Animation(string name):animationName(name) {} ~Animation(); void EditFrame(); void DeleteFrame(); friend istream& operator>>(istream&,Animation&);// Add a Frame as in cin >> A; friend ostream& operator<<(ostream&,Animation&);// output the Frames as in cout << A; }; // AnimationManager.h #pragma once class AnimationManager { string managerName; vector animations; public: AnimationManager(string name) :managerName(name) {} ~AnimationManager() {} void EditAnimation(); void DeleteAnimation(); friend istream& operator>>(istream&, AnimationManager&);// add an Animation
friend ostream& operator<<(ostream&,AnimationManager&);// output the Animations }; // Assignment3.cpp #define _CRT_SECURE_NO_WARNINGS #define _CRTDBG_MAP_ALLOC // need this to get the line identification //_CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF|_CRTDBG_LEAK_CHECK_DF); // in main, after local declarations //NB must be in debug build #include #include #include #include #include using namespace std; #include “Frame.h” #include “AudioFrame.h” #include “VideoFrame.h” #include “Animation.h” #include “AnimationManager.h” int main(void) { char response; bool RUNNING = true; AnimationManager M(“Manager1”); _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF |
_CRTDBG_LEAK_CHECK_DF); while (RUNNING) { cout<<“MENU\n 1. Add an Animation\n 2. Delete Animation at end\n 3. Edit an Animation\n 4. list the Animations\n 5. Quit”<<endl; cin>>response; switch (response) { case ‘1’:cin >> M; break; case ‘2’:M.DeleteAnimation(); break; case ‘3’:M.EditAnimation(); break; case ‘4’:cout << M; break; case ‘5’:RUNNING = false; break; default:cout<<“Please enter a valid option”<<endl; } } return 0; } Example Output MENU 1. Add an Animation 2. Delete an Animation 3. Edit an Animation 4. list the Animations 5.
Quit 1 Add an Animation to the Animation Manager Please enter the Animation Name: Animation1 Animation Animation1 added at the back of animations MENU 1. Add an Animation 2. Delete an Animation 3. Edit an Animation 4. list the Animations 5. Quit 1 Add an Animation to the Animation Manager Please enter the Animation Name: Animation2 Animation Animation2 added at the back of animations MENU 1. Add an Animation 2. Delete an Animation
4 3. Edit an Animation 4. list the Animations 5. Quit 1 Add an Animation to the Animation Manager Please enter the Animation Name: Animation3 Animation Animation3 added at the back of animations MENU 1. Add an Animation 2. Delete an Animation 3. Edit an Animation 4. list the Animations 5. Quit 3 Which Animation do you wish to edit? Please give the index (from 0 to 2): 0 Editing Animation #0 MENU 1. Insert a Frame at front 2. Delete first Frame 3. Edit a Frame 4. Quit 1 Insert a Frame in the Animation Please enter the Frame frameName: Frame1 Please enter the Frame size(MB): 64 Please enter the Frame type (AudioFrame = A, VideoFrame = V): A Frame Frame1 Frame* added at the front of frames MENU 1. Insert a Frame at front 2. Delete first Frame 3. Edit a Frame 4.
Quit 1 Insert a Frame in the Animation Please enter the Frame frameName: Frame2 Please enter the Frame size(MB): 128 Please enter the Frame type (AudioFrame = A, VideoFrame = V): V Frame Frame2 Frame* added at the front of frames MENU 1. Insert a Frame at front 2. Delete first Frame 3. Edit a Frame 4. Quit 4 Animation #0 edit complete MENU 1. Add an Animation 2. Delete an Animation 3. Edit an Animation 4. list the Animations 5.
Quit 3 Which Animation do you wish to edit? Please give the index (from 0 to 2): 2 Editing Animation #2 MENU 1. Insert a Frame at front 2. Delete first Frame 3. Edit a Frame 4. Quit 1 Insert a Frame in the Animation Please enter the Frame frameName: Frame1 Please enter the Frame size(MB): 256 Please enter the Frame type (AudioFrame = A, VideoFrame = V): V Frame Frame1 Frame* added at the front of frames MENU 1. Insert a Frame at front 2. Delete first Frame 3. Edit a Frame 4.
Quit 4 Animation #2 edit complete MENU 1. Add an Animation 2. Delete an Animation 3. Edit an Animation 4. list the Animations 5. Quit 4 AnimationManager: Manager1 Animation: 0 Animation name is Animation1 Report the Animation Frame #0 VideoFrame: frameName = Frame2 Lempel-Ziv-Welch Lossless Compression —————————————————————————————- colours: | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256 —————————————————————————————- file size (MB): | 1.922 | 4.638 | 6.095 | 8.889 | 11.23 | 14.22 | 17.78 | 21.33 —————————————————————————————- Frame #1 AudioFrame: frameName = Frame1 MP3 Lossy Compression ———————————————————
5 bitrate (kbits/s): | 128 | 160 | 192 ——————————————————— file size (MB): | 5.77 | 7.03 | 9.01 ——————————————————— Animation: 1 Animation name is Animation2 Report the Animation No frames in the Animation Animation: 2 Animation name is Animation3 Report the Animation Frame #0 VideoFrame: frameName = Frame1 Lempel-Ziv-Welch Lossless Compression —————————————————————————————- colours: | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256 —————————————————————————————- file size (MB): | 3.844 | 9.275 | 12.19 | 17.78 | 22.46 | 28.44 | 35.56 | 42.67 —————————————————————————————- MENU 1. Add an Animation 2. Delete an Animation 3. Edit an Animation 4. list the Animations 5. Quit