Template:AVO Sample of copying
From AVObjects Knowledge Base
Copy frames for all streams from source object to dest object
for(int n = 0; n < nStreams; n++) { HRESULT hr = spDest->CanPutFrame(n, 0); if ( FAILED(hr) ) return hr; else if (hr != S_OK) continue; hr = spSource->CanGetFrame(n, 0); if ( FAILED(hr) ) return hr; else if (hr != S_OK) continue; DWORD cbActual = 0; REFERENCE_TIME tS = 0, tE = 0; DWORD dwFlags = 0; hr = spSource->GetFrame(n, m_pbBuffer, m_cbBuffer, &cbActual, &dwFlags, &tS, &tE, NULL); if (hr == S_OK) { hr = spDest->PutFrame(n, m_pbBuffer, cbActual, dwFlags, tS, tE, NULL); } else if (hr == HRESULT_FROM_WIN32(ERROR_HANDLE_EOF)) { hr = spDest->PutFrame(n, NULL, 0, 0, 0, 0, NULL); } if (FAILED(hr)) return hr; }