Introduction to directshow II

Introduction to DirectShow Part II Programming example EzRGB

Exercise overview ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Our Goals from this Exercise ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Installation ,[object Object],[object Object],[object Object],[object Object]

Compilation Error? ,[object Object],[object Object]

Link Error ,[object Object],[object Object],[object Object]

Missing library ,[object Object],[object Object]

Is it compiling now? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Adding tools ,[object Object],[object Object],[object Object],[object Object]

DirectShow base classes ,[object Object],[object Object]

DirectShow base classes ,[object Object],[object Object],[object Object]

DirectShow ,[object Object],[object Object],[object Object],[object Object]

IUnKnown Implementation ,[object Object]

Filter Basic classes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Pin Interfaces ,[object Object],[object Object],[object Object],STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void **ppv) { if (riid == IID_ISomeInterface) { return GetInterface((ISomeInterface*)this, ppv); } if (riid == IID_ISomeInterface) { return GetInterface((ISomeInterface*)this, ppv); } // default return CUnknown::NonDelegatingQueryInterface(riid, ppv); }

EXERCISE 1 – EZRGB SAMPLE ,[object Object]

Registration ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

R egistered information ,[object Object],[object Object]

Registered information - 2 ,[object Object],[object Object],[object Object],[object Object],[object Object]

Registered information - 3 ,[object Object],[object Object],[object Object],[object Object]

The EzRGB Filter ,[object Object],[object Object]

Debugging the application ,[object Object],[object Object]

How do we debug? ,[object Object],[object Object],[object Object],Everybody Got the same graph?? Why not?

Pull Architecture ,[object Object],[object Object],[object Object],[object Object]

Media Types ,[object Object],[object Object],[object Object]

Media Type changes - explained ,[object Object],[object Object],[object Object],[object Object],[object Object]

Media Type changes - explained ,[object Object],[object Object]

CreateInstance() ,[object Object],[object Object]

Constructors ,[object Object],[object Object],[object Object],[object Object]

CBaseFilter Constructor ,[object Object],[object Object],[object Object]

CBaseFilter ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Property Page ,[object Object],[object Object],If the interface exist we can view “filter properties” as enabled on the filter

Filter Media Type ,[object Object],[object Object]

Media types include ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

F ilter connection ,[object Object],[object Object]

Connection Handling ,[object Object],[object Object]

Connecting filters – from the start ,[object Object],[object Object],[object Object]

Filter Connection - continued ,[object Object],[object Object]

Media type verification ,[object Object],[object Object],[object Object],[object Object]

Processing Media Samples ,[object Object],[object Object],[object Object],[object Object]

Processing Media Samples ,[object Object]

DSP-IP Contact information Download slides at: www.dsp-ip.com Course materials & lecture request Projects development services: Adi Yakov Training Manager [email_address] +972-9-8651933 www.dsp-ip.com Mail : [email_address] Phone: +972-9-8850956, Fax : +972-50- 8962910 ,[object Object],[object Object],[object Object]

Introduction to directshow II

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Introduction to directshow II