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Grouping 5 students in one group Deadline: 10 Feb 2015 [email protected] Grouping information
Student name: xxx, SID: xxxxxxxxxxStudent name: xxx, SID: xxxxxxxxxxStudent name: xxx, SID: xxxxxxxxxxStudent name: xxx, SID: xxxxxxxxxxStudent name: xxx, SID: xxxxxxxxxx
2
Demonstration + Report (hardcopy) Any language (e.g. C++/C, C#, Java…)
Introduction
Assessment: Basic requirements & Originality: 50% Enhanced features: 30% Innovation: 10% Demonstration and report: 10%
Introduction
P2P Karaoke System
Introduction
Audio Play
Introduction
Lyrics display
Introduction
Local Karaoke System + P2P streaming feature
Project in details
Karaoke System
9
1 ， User Interface
Play button Stop button List control Add/remove information Lyrics display
Requirement 1
2 ， Music management
Management of music files
Files Detection
Database to store music information
Requirement 2
3 ， Music information display
Music title Singer Album Display them in your GUI
Requirement 3
4 ， Multi-Keyword Searching
Using the information in database Search the audio file Multi-keyword Result displayed in the list control
Requirement 4
5 ， Music Playback Very easy
Playsound(“C:\\a.wav”,0,SND_ASYNC|SND_FILENAME);
Finish?
You need to understand the Wav format
Requirement 5
6 ， Lyrics display
Read the lyrics from the txt file Display it in the UI
Requirement 6
7 ， Suggested Enhanced Features
Support other audio format; this can be based on a third-party library.
Video playing Dynamical effects Visualization Any other creative ideas to enhance the
system
Enhanced Features
17
P2P
Network connection At least 3 terminals
Enhanced Features Broadcasting
Tracker Server
Requirement 1
Real-time streaming
Buffer no more than 50% of a file before you play it
Requirement 2
Network music searching
Requirement 3
Media file management
Requirement 4
Peer-to-Peer
Requirement 5
Support other audio format (e.g. Video Streaming)
More than 3 clients
Others
Enhance Features
1~2 pages’s report write down
team number team member’s name team member’s student ID workload division program’s operation manual third-party library enhanced features
Project in detail
Demonstrate every basic requirement every enhanced features
10-mins Demonstration
2-mins Q&A
Project in detail
All members must attend any machines well prepared setup your environment download the necessary resources prepare your own audio files get back your submitted CD-R. copy your program to the demonstrate machine Demo starts when you run your program.
Project in detail
Demonstrate all of your program features.
Don’t close/restart your program without permission.
Unstable performance may lead to mark deduction.
Project in detail
Develop a user friendly UI Balanced workload Well prepare for the demonstration
Project in detail
Audio Play
29
Main topic:
1, Low Level API
2, Wave File Format
3, Procedure
4, Other Useful Functions
Low Level API
Windows APIsHigh-level: calling one function ?
PlaySound(“c:\\abc.wav“,0,SND_ASYNC|SND_FILENAME)
Low-level: manipulating the sound data manually
DirectX APIs
Third-party codes
Full control by your code!
Low Level API
http://www.topherlee.com/software/pcm-tut-wavformat.html
WAV File format
RIFF (Resource Interchange File Format)
Size storage uses Little-endian
WAV File format
Windows API
windows.h mmsystem.h Function:
mmioXXXX() waveOutXXXX( )
Hints: Google is your friend!
http://www.blitter.com/~russtopia/MIDI/~jglatt/tech/mmio.htm
Procedure
Open a wav File
Go into RIFF chunk
Go into fmt chunk
Read Sub chunk Info
Escape from Sub chunk
Go into data chunk
Open audio device
Prepare buffers
Read data chunk data
Play back buffer data
Close the wav file
Close audio device
HMMIO mmioOpen (LPSTR filename, LPMMIOINFO info, DWORD flags);
Opens a file for unbuffered or buffer ed I/O
Procedure
Open a wav File
Go into RIFF chunk
Go into fmt chunk
Read Sub chunk Info
Escape from Sub chunk
Go into data chunk
Open audio device
Prepare buffers
Read data chunk data
Play back buffer data
Close the wav file
Close audio device
mmioDescend (HMMIO h, LPMMCKINO lpck, LPMMCKINFO lpckParent, UNIT flags);Descends into a chunk of a RIFF file
Procedure
Open a wav File
Go into RIFF chunk
Go into fmt chunk
Read Sub chunk Info
Escape from Sub chunk
Go into data chunk
Open audio device
Prepare buffers
Read data chunk data
Play back buffer data
Close the wav file
Close audio device
LONG mmioRead (HMMIO h, HPSTR pch, LONG cch); reads a specified number of bytes from a file
Procedure
Open a wav File
Go into RIFF chunk
Go into fmt chunk
Read Sub chunk Info
Escape from Sub chunk
Go into data chunk
Open audio device
Prepare buffers
Read data chunk data
Play back buffer data
Close the wav file
Close audio device
mmioAscend(HMMIO h, LPMMCKINFO lpck, UINT flags);
Ascends out of a chunk in a RIFF file
waveOutOpen(LPHWAVEOUT phwo, UINT uDeviceID, LPWAVEFORMATEX pwfx, DWORD dwCallback, DWORD Instance,
DWORD fdwOpen );
Procedure
Open a wav File
Go into RIFF chunk
Go into fmt chunk
Read Sub chunk Info
Escape from Sub chunk
Go into data chunk
Open audio device
Prepare buffers
Read data chunk data
Play back buffer data
Close the wav file
Close audio device
Procedure
Open a wav File
Go into RIFF chunk
Go into fmt chunk
Read Sub chunk Info
Escape from Sub chunk
Go into data chunk
Open audio device
Prepare buffers
Read data chunk data
Play back buffer data
Close the wav file
Close audio devicewaveOutPrepareHeader(HWAVEOUT hwo, LPWAVEHDR pwh, UINT
cbwh );
Procedure
Open a wav File
Go into RIFF chunk
Go into fmt chunk
Read Sub chunk Info
Escape from Sub chunk
Go into data chunk
Open audio device
Prepare buffers
Read data chunk data
Play back buffer data
Close the wav file
Close audio device
waveOutWrite (HWAVEOUT hwo, LPWAVEHDR pwh, UINT cbwh );
Procedure
Open a wav File
Go into RIFF chunk
Go into fmt chunk
Read Sub chunk Info
Escape from Sub chunk
Go into data chunk
Open audio device
Prepare buffers
Read data chunk data
Play back buffer data
Close the wav file
Close audio device
mmioClose (HMMIO h, UINT wflags);
mmioClose (hmmioIn, 0);
waveOutClose (HWAVEOUT hwo);
waveOutClose (hAudioOut);
Procedure
Open a wav File
Go into RIFF chunk
Go into fmt chunk
Read Sub chunk Info
Escape from Sub chunk
Go into data chunk
Open audio device
Prepare buffers
Read data chunk data
Play back buffer data
Close the wav file
Close audio device
Other useful functions
waveOutSetVolume(HWAVEOUT hwo,DWORD dwVolume);
between 0xFFFF and 0x0000 0xFFFF is the full volume. The low order word of dwVolume is the left-channel volume The high order word is the right-channel volume
waveOutGetErrorText(MMRESULT mmrError, LPSTR pszText, UINT cchText );
almost every waveOut calls returns a MMRESULT variable, any value other than MMSYSERR_NOERROR indicates failure
pszText is the string buffer cchText is the size of the buffer
