C / C++ / MFC

How to fast forward and rewind in directshow

19-May-07 14:04

I can't find IPAS_NOVALIDATE defined in any of my platform SDK/MSDN files.

What is it?

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

rjkg18-May-07 19:22

rjkg

18-May-07 19:22

I am playing movie in directshow . now I want to fastforward the movie
2x 3x 4x etc . also I want to rewind the movie. can any body tell me
how it is possible

RajeshGupta

Hamid_RT18-May-07 20:06

18-May-07 20:06

On the MCI functions you can use of MCI_DGV_SET_SPEED see MCI_SET[^]

WhiteSky

rjkg18-May-07 23:36

rjkg

18-May-07 23:36

I want to fastforward and rewind in localfile scenario . i .e
I am using the .asf or .wmv file .

RajeshGupta

Mark Salsbery19-May-07 14:09

19-May-07 14:09

Seeking the Filter Graph[^]

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

rjkg20-May-07 21:58

rjkg

20-May-07 21:58

Hi,
I know that but problem is that when I set g_pSeek->SetRate(2.0);
it fast forward for few milli seconds then again playback with
normal speed . again tell me how to rewind the playback.

RajeshGupta

Mark Salsbery21-May-07 8:20

21-May-07 8:20

That's going to depend on the filters in the graph.

For example, if you are playing ASF files with the Windows Media ASF Reader filter, then
SetRate() isn't supported for any speeds except 1.0.

IMediaSeeking::GetCapabilities() will give you info on supported seeking capabilities (including
reverse playback).

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Hamid_RT21-May-07 8:43

21-May-07 8:43

I think use of MCI_DGV_SET_SPEED is easy,isnt ?

WhiteSky

Mark Salsbery21-May-07 8:47

21-May-07 8:47

Yes but the OP is using DirectShow Smile | :)

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Hamid_RT21-May-07 8:56

21-May-07 8:56

Yeah you right Smile | :)

"playing movie in directshow "
-------------
Did you see Lounge forum "Why a career in computer programming sucks"? what do you think?

WhiteSky

Mark Salsbery21-May-07 9:07

21-May-07 9:07

WhiteSky wrote:
Did you see Lounge forum "Why a career in computer programming sucks"? what do you think?

Yes. I pretty much disagree with all 10 points. I personally haven't experienced any of those
Smile | :)

I love to code. So much so, way back when, I did it on paper for a couple years before I could
afford my first PC. I did it as a hobby when I was in a completely different profession.

I guess if anyone relates to those items, they probably ARE in the wrong profession.

Cheers!
Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Hamid_RT21-May-07 9:17

21-May-07 9:17

I cant imagine I leave programming also I think best enjoy write code and find problems so I agree with you and I think programming is a nice work.

WhiteSky

Mark Salsbery21-May-07 9:21

21-May-07 9:21

WhiteSky wrote:
I cant imagine I leave programming

Especially to be a database administrator! Roll eyes | :rolleyes:

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Hamid_RT21-May-07 9:31

21-May-07 9:31

Mark Salsbery wrote:
Especially to be a database administrator

Well said

WhiteSky

Onwer draw ListCtrl

kcynic18-May-07 18:47

kcynic

18-May-07 18:47

I have a class whose base calss is CListCtrl,I want to make one list to draw every thing by itself,so I also wrote a CMyHeaderCtrl and CMyScrollbar class.
I modified the list's style to Owner draw,in the function ::OnPaint()I used these code lines to make it draw it items:

const MSG* msg=GetCurrentMessage();<br />
   DefWindowProc(msg->message,msg->wParam,msg->lParam);

but where would be a assert occur.
somebody would tell me why?
Thanks.

BestRegards

Re: Onwer draw ListCtrl

PJ Arends19-May-07 6:44

PJ Arends

19-May-07 6:44

kcynic wrote:
but where would be a assert occur.
somebody would tell me why?

Not without more information. 99.99% of the time the ASSERT() statement itself will tell you exactly what is wrong.

Darker than a black steer's tookus on a moonless praire night

Within you lies the power for good, use it!!!

virtual key code

prathuraj18-May-07 18:37

prathuraj

18-May-07 18:37

what is a virtual key code for number keys.

Like VK_TAB for tab .

for 0 - 9 what is a key code.

Re: virtual key code

Rajesh R Subramanian18-May-07 19:04

Rajesh R Subramanian

18-May-07 19:04

prathuraj wrote:
for 0 - 9 what is a key code.

For 0, it is 0x30 and so on...

Refer to the following URL for a complete list of virtual key codes.
http://msdn2.microsoft.com/en-us/library/ms645540.aspx[^]

Nobody can give you wiser advice than yourself. - Cicero

Re: virtual key code

Hamid_RT18-May-07 19:47

closing several instances of same thread

18-May-07 19:47

See Virtual Key Codes [^]

WhiteSky

neha.agarwal2718-May-07 18:19

neha.agarwal27

18-May-07 18:19

Hi all,
i have made a worker thread ,that worker thread is called from a function every time a condition is met.So i have several instances of same thread running at same time.So i want to know that if i want to close all instances of that thread, single AfxEndThread will close the threads or i have to use some other method.

thanks in advance

neha.agarwal2718-May-07 18:50

neha.agarwal27

18-May-07 18:50

my problem got solved using TerminateThread. but the new problem is when thread is not running and the function calls TerminateThread it gives debug asserstion failed error. i have also tried using:

if(::GetExitCodeThread(CloseTh->m_hThread,0))
::TerminateThread(CloseTh->m_hThread,0);

but it also gives debug assertion failed may be i m not using it correctly.

Can annybody help me in this

thanks in advance

Arman S.18-May-07 21:03

Arman S.

18-May-07 21:03

No. Never use TerminateThread unless there is a strong reason for that. TerminateThread simply makes the system to kill the thread whereas the thread never gets known about its death.

--
=====
Arman

Hamid_RT18-May-07 21:43

18-May-07 21:43

See Why you should never call Suspend/TerminateThread (Part I)[^]

WhiteSky