How to show/display captured time ?

Question

0.00/5 (No votes)

See more:

Hi,
I am developing a video capture application using Directshow with Decklink Studio 2 and saving the captured video in Mpeg-2 using Main Concept MPEG-2 Encoder.My application looks like this:

Decklink Video Capture -> MC MPEG-2 Video Encoder ->.....

............................................................................ MC MPEG MUXER -> File Writer(.mpg)

Decklink Audio Capture -> MC MPEG-2 Audio Encoder ->.....

Everything works fine, but I want to display capture duration in real time.How can I get duration while capture?

Can anyone help me with example or sample code how to do that?

Thank you in advance.

Posted 13-Jul-12 0:20am

dejmk

Updated 13-Jul-12 0:25am

v7

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

barneyman · Answer 1 · 2012-07-13T01:17:00

Solution 1

Create a DS transform filter, and intercept the media time/real time

The third one should be helpful[^]

Posted 13-Jul-12 1:17am

barneyman

v2

Jochen Arndt · Answer 2 · 2012-07-13T01:25:00

You may create a worker thread for this. Just before starting the encoding, create and start the thread. When the encoding has finished, stop the thread (using an event is recommended).

Inside the thread get the start time at the entry point. Then use a loop with WaitForSingleObject() on your stop event and a time out value of 1000 ms. Upon timeout, calculate the difference between current time and start time, and send that value via PostMessage() to your application's main window or a progress dialog window using the windows handle and a user defined message number (WM_APP+x or WM_USER+x).

This is not really real time, but should be sufficient for the display of elapsed time.