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POC++ : What's the easiest library to open video file
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copied!<p>I would like to open a small video file and map every frames in memory (to apply some custom filter). I don't want to handle the video codec, I would rather let the library handle that for me.</p> <p>I've tried to use Direct Show with the SampleGrabber filter (using this sample <a href="http://msdn.microsoft.com/en-us/library/ms787867(VS.85).aspx" rel="noreferrer">http://msdn.microsoft.com/en-us/library/ms787867(VS.85).aspx</a>), but I only managed to grab some frames (not every frames!). I'm quite new in video software programming, maybe I'm not using the best library, or I'm doing it wrong. </p> <p>I've pasted a part of my code (mainly a modified copy/paste from the msdn example), unfortunately it doesn't grabb the 25 first frames as expected...</p> <pre><code>[...] hr = pGrabber->SetOneShot(TRUE); hr = pGrabber->SetBufferSamples(TRUE); pControl->Run(); // Run the graph. pEvent->WaitForCompletion(INFINITE, &evCode); // Wait till it's done. // Find the required buffer size. long cbBuffer = 0; hr = pGrabber->GetCurrentBuffer(&cbBuffer, NULL); for( int i = 0 ; i < 25 ; ++i ) { pControl->Run(); // Run the graph. pEvent->WaitForCompletion(INFINITE, &evCode); // Wait till it's done. char *pBuffer = new char[cbBuffer]; hr = pGrabber->GetCurrentBuffer(&cbBuffer, (long*)pBuffer); AM_MEDIA_TYPE mt; hr = pGrabber->GetConnectedMediaType(&mt); VIDEOINFOHEADER *pVih; pVih = (VIDEOINFOHEADER*)mt.pbFormat; [...] } [...] </code></pre> <p>Is there somebody, with video software experience, who can advise me about code or other simpler library?</p> <p>Thanks</p> <p>Edit: Msdn links seems not to work (<a href="http://stackoverflow.uservoice.com/pages/general/suggestions/19963" rel="noreferrer">see the bug</a>)</p>

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