ISampleGrabber deprecated: where can I find alternatives?

Question

I have an existing project which should be ported to windows 7. This project uses the ISampleGrabberCB and ISamplegrabber Interface. These Interfaces are deprecated. Is there any alternative to avoid the usage of these interfaces? Exist there any literature on grabbing frames with the new SDK?

cheers,

Marko

Answer 1

Although not documented, the SampleGrabber filter is still present on Win7, and you can use it.

Otherwise, you can find an example grabber filter (grabber sample) in older SDKs.

Or make your own (rather easy using a transform filter as a base)..

---

Michel Roujansky, http://www.roujansky.com

Answer 2

This is a practical good answer and I even doubt ISampleGrabber will be removed anyway. VFW (Video For Windows) is deprecated for years now and still here.... In fact many softwares use ISampleGrabber so I can imagine that if it's really removed - deprecated then as a collateral effect Windows itself will be deprecated for some developers !!!

Anyway this pratical good answer DOES NOT ANSWERS THE BASIC AND PRINCIPAL QUESTION : What is intended to replace ISampleGrabber ? Where is the alternative documentation ? Where are the alternative Samples ?  -- Vista was the first and only reason I've started to consider OS alternatives. "Deprecated" like this one are among reasons I'm starting  to consider DirectShow alternatives--.

cheers, 

Answer 3

serge_solo wrote:

>

>Anyway this pratical good answer DOES NOT ANSWERS THE BASIC AND PRINCIPAL

>QUESTION : What is intended to replace ISampleGrabber ? Where is the

>alternative documentation ? Where are the alternative Samples ?

 

Microsoft is under no obligation to provide a replacement.

CLSID_SampleGrabber is a very simple filter to build. The "alternative" is

to build your own.

 

>Vista was the first and only reason I've started to consider OS

>alternatives. "Deprecated" like this one are among reasons I'm

>starting to consider DirectShow alternatives--.

 

Microsoft throws the word "deprecated" around the way advertisers throw

around "new" and "improved". It's a joke -- it doesn't mean a thing. I've

never seen them remove ANYTHING that was deprecated, especially in the

driver arena.

--

Tim Roberts, [e-mail]

Providenza & Boekelheide, Inc.

 

---

Tim Roberts, DDK MVP

Answer 4

I agree. Thank you for confirming, as I've already said that "deprecated" is mainly no-no : VFW is an example.

Anyway it's a pain to have sovietic-answers like " Microsoft is under no obligation..." : of course it's true but customers ( in this case developers) can also react on this politics.

For customers in industrial, medical, military markets it's difficult to explain that they have to use anyway something Microsoft has said "deprecated" and for which there is no available alternative. They just estimate it's not safe ( secure) and this is a trojan-horse ( in the real mythological sense) for Microsoft competitors or other technology than supported by MS.

So I maintain my question per principle : what is available if I don't have to be based on  "deprecated" ? I'm based on ISampleGrabber, it works, I'm quite sure it will still work in the future but this is not enough for my customers. What can I tell them ? just that Microsoft has no obligation ?

ISampleGrabber is a detail : the question is not a detail.

Cheers,

Answer 5

serge_solo wrote:

>

>So I maintain my question per principle : what is available if I don't

>have to be based on "deprecated" ? I'm based on ISampleGrabber, it

>works, I'm quite sure it will still work in the future but this is

>not enough for my customers. What can I tell them ? just that

>Microsoft has no obligation ?

 

The best you can do is offer to bulid your own if CLSID_SampleGrabber ever

breaks. I wrote a simple renderer that works exactly like the sample

grabber and null renderer pair in about 200 lines of code. DirectShow is

just not that complicated.

--

Tim Roberts, [e-mail]

Providenza & Boekelheide, Inc.

 

---

Tim Roberts, DDK MVP

Answer 6

Do you know a good book, where I can learn how to use DirectShow and how to build a Grabber?

 

regards,

Marko

Answer 7

The BEST : Programming Microsoft DirectShow for Digital Video and Television : Mark.D.Pesce, Microsoft Press

And chapt11 is"Using the Sample Grabber Filter"...

SRSR

Answer 8

'Microsoft Media Foundation' is the new stuff to replace a lot of stuff in DirectShow starting with Vista.

http://msdn.microsoft.com/en-us/library/windows/desktop/ms694197(v=vs.85).aspx

 

There are good samples for video capture.

http://msdn.microsoft.com/en-us/library/windows/desktop/ee663604(v=vs.85).aspx

 

http://msdn.microsoft.com/en-us/library/windows/desktop/dd743690(v=vs.85).aspx

Answer 9

serge_solo wrote:

>

>So I maintain my question per principle : what is available if I don't

>have to be based on "deprecated" ? I'm based on ISampleGrabber, it

>works, I'm quite sure it will still work in the future but this is

>not enough for my customers. What can I tell them ? just that

>Microsoft has no obligation ?

 

The best you can do is offer to bulid your own if CLSID_SampleGrabber ever

breaks. I wrote a simple renderer that works exactly like the sample

grabber and null renderer pair in about 200 lines of code. DirectShow is

just not that complicated.

--

Tim Roberts, [e-mail]

Providenza & Boekelheide, Inc.

 

---

Tim Roberts, DDK MVP

<p></p><p></p><p>///////////////////////////////////////////////////////////////////////////////////

#ifndef __qedit_h__
#define __qedit_h__

///////////////////////////////////////////////////////////////////////////////////

#pragma once

///////////////////////////////////////////////////////////////////////////////////

interface
ISampleGrabberCB
:
	public IUnknown
{
	virtual STDMETHODIMP SampleCB( double SampleTime, IMediaSample *pSample ) = 0;
	virtual STDMETHODIMP BufferCB( double SampleTime, BYTE *pBuffer, long BufferLen ) = 0;
};

///////////////////////////////////////////////////////////////////////////////////

static
const
IID IID_ISampleGrabberCB = { 0x0579154A, 0x2B53, 0x4994, { 0xB0, 0xD0, 0xE7, 0x73, 0x14, 0x8E, 0xFF, 0x85 } };

///////////////////////////////////////////////////////////////////////////////////

interface
ISampleGrabber
:
	public IUnknown
{
	virtual HRESULT STDMETHODCALLTYPE SetOneShot( BOOL OneShot ) = 0;
	virtual HRESULT STDMETHODCALLTYPE SetMediaType( const AM_MEDIA_TYPE *pType ) = 0;
	virtual HRESULT STDMETHODCALLTYPE GetConnectedMediaType( AM_MEDIA_TYPE *pType ) = 0;
	virtual HRESULT STDMETHODCALLTYPE SetBufferSamples( BOOL BufferThem ) = 0;
	virtual HRESULT STDMETHODCALLTYPE GetCurrentBuffer( long *pBufferSize, long *pBuffer ) = 0;
	virtual HRESULT STDMETHODCALLTYPE GetCurrentSample( IMediaSample **ppSample ) = 0;
	virtual HRESULT STDMETHODCALLTYPE SetCallback( ISampleGrabberCB *pCallback, long WhichMethodToCallback ) = 0;
};

///////////////////////////////////////////////////////////////////////////////////

static
const
IID IID_ISampleGrabber = { 0x6B652FFF, 0x11FE, 0x4fce, { 0x92, 0xAD, 0x02, 0x66, 0xB5, 0xD7, 0xC7, 0x8F } };

///////////////////////////////////////////////////////////////////////////////////

static
const
CLSID CLSID_SampleGrabber = { 0xC1F400A0, 0x3F08, 0x11d3, { 0x9F, 0x0B, 0x00, 0x60, 0x08, 0x03, 0x9E, 0x37 } };

///////////////////////////////////////////////////////////////////////////////////

static
const
CLSID CLSID_NullRenderer = { 0xC1F400A4, 0x3F08, 0x11d3, { 0x9F, 0x0B, 0x00, 0x60, 0x08, 0x03, 0x9E, 0x37 } };

///////////////////////////////////////////////////////////////////////////////////

static
const
CLSID CLSID_VideoEffects1Category = { 0xcc7bfb42, 0xf175, 0x11d1, { 0xa3, 0x92, 0x0, 0xe0, 0x29, 0x1f, 0x39, 0x59 } };

///////////////////////////////////////////////////////////////////////////////////

static
const
CLSID CLSID_VideoEffects2Category = { 0xcc7bfb43, 0xf175, 0x11d1, { 0xa3, 0x92, 0x0, 0xe0, 0x29, 0x1f, 0x39, 0x59 } };

///////////////////////////////////////////////////////////////////////////////////

static
const
CLSID CLSID_AudioEffects1Category = { 0xcc7bfb44, 0xf175, 0x11d1, { 0xa3, 0x92, 0x0, 0xe0, 0x29, 0x1f, 0x39, 0x59 } };

///////////////////////////////////////////////////////////////////////////////////

static
const
CLSID CLSID_AudioEffects2Category = { 0xcc7bfb45, 0xf175, 0x11d1, { 0xa3, 0x92, 0x0, 0xe0, 0x29, 0x1f, 0x39, 0x59 } };

///////////////////////////////////////////////////////////////////////////////////

#endif

///////////////////////////////////////////////////////////////////////////////////</p>

 You mean something like this... is this the best option? do we forget something from the "original" IsampleGrabber??