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Playing .avi (c++)

Started by drummer1549 May 7, 2005 at 10:34 PM 2 replies 2.5k views

Original Post

May 7, 2005 at 10:34 PM

hey this might be a dumb question but o well... im not a c++ programmer, i know the basics and thats about it but i thought what im doing would be best done in c++ if its not to complicated. i just want to make an .exe that plays a short .avi video ive made. Since im not a c++ programmer, please be specific. if its not to long or complicated, can someone please give me the code, or at least a reference to a tutorial if its more complicated, to play my video (logo.avi is the name of the file). Thanks for any help!

Verg

May 7, 2005 at 11:22 PM

Search Microsoft's site on:

AVIFile
AVIStream
VFW.H

msdn.microsoft.com

You'll probably use either Win32/MFC to do the coding.

All of the AVIFile APIs are pretty straightforward.

Chad

Prototype

May 7, 2005 at 11:38 PM

Here's a brief example of an application using DirectShow to play a movie. For simplicity it runs as a console application, if you want to get rid of the console window you should transform it into a Windows application (WinMain, message pump etc.) But I'll leave that up to you as an exercise :)
Good luck.

#pragma comment(lib, "strmiids.lib")#pragma comment(lib, "quartz.lib")#include <string>#include <dshow.h>int PlayVideo(const std::string& pFile){    IGraphBuilder* pGraph = NULL;    IVideoWindow* pWin = NULL;    IMediaControl* pControl = NULL;    IMediaEvent* pEvent = NULL;    // Initialize the COM library.    HRESULT hr = CoInitialize(NULL);    if (FAILED(hr)) return 1;    // Create the filter graph manager and query for interfaces.    hr = CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER, IID_IGraphBuilder, (void **)&pGraph);    if (FAILED(hr)) return 1;	// Get interfaces    hr = pGraph->QueryInterface(IID_IMediaControl, (void **)&pControl);    hr = pGraph->QueryInterface(IID_IMediaEvent, (void **)&pEvent);    hr = pGraph->QueryInterface(IID_IVideoWindow, (void **)&pWin);    // Build the graph (convert unicode filename)    size_t _size = mbstowcs(NULL, pFile.c_str(), 0) + 2; // Add 2 for ZT    wchar_t* _wfile = new wchar_t[_size+2];    _size = mbstowcs(_wfile, pFile.c_str(), pFile.length()+1); // Add 1 for ZT    hr = pGraph->RenderFile(_wfile, NULL);    delete[] _wfile;    // Uncomment next line for borderless window display    //pWin->put_WindowStyle(WS_CHILD | WS_CLIPSIBLINGS);    // For fullscreen play, get Windows screen parameters and replace    pWin->SetWindowPosition(0,0,800,600);    if (SUCCEEDED(hr))    {        hr = pControl->Run();        if (SUCCEEDED(hr))        {            long evCode;            pEvent->WaitForCompletion(INFINITE, &evCode);        }    }    pControl->Release();    pEvent->Release();    pWin->Release();    pGraph->Release();    CoUninitialize();    return 0;}int main(){    PlayVideo("test.avi"); // play any format Windows can handle, avi/mpg etc.    return 0;}

edit: fixed spacing
edit: forgot to mention you will need some DirectX SDK, or at least headers & libaries for DirectShow [pig]
So if you really need it simple you could also launch Windows Media Player:

#include <windows.h>int main(){    ShellExecute(NULL, "open", "mplayer2.exe", "\"test.avi\" /play /close /fullscreen", NULL, 0);    return 0;}

Well this got messy after all.

[Edited by - Prototype on May 8, 2005 12:38:00 AM]

drummer1549

May 8, 2005 at 9:03 AM

thanks a lot! this helped so much. looks like my problems are solved. :)

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