If you're using C then you're going to have to use such abberations as malloc, free and memcpy. If you're using C++ you can get away with using a vector - it can be used just about anywhere a built in array can be used and doesn't involve memory management. If the two buffers are called buffer_1 and buffer_2 (and they're arrays and not some block of memory bunged on the heap): std::vector<char> appended_buffer( &buffer_1[ 0 ], &buffer_1[ 40 ] ); appended_buffer.resize( appended_buffer.size() + (&buffer_2[ 50 ] - &buffer_2[ 0 ]) ); std::copy( &buffer_2[ 0 ], &buffer_2[ 50 ], &appended_buffer[ 40 ] ); The big problem with this is you have to know the sizes of the buffers you're copying from. You can get around this by never using raw character buffers and using vectors for everything. If buffer_1 and buffer_2 are vectors: std::vector<char> appended_buffer( buffer_1.size() + buffer_2.size() ); std::copy( buffer_2.begin(), buffer_2.end(), std::copy( buffer_1.begin(), buffer_1.end(), appended_buffer.begin() ) ); The nested copying takes uses the fact that std::copy returns the place (actually it's an iterator) where the second copy has to start - really handy. All this is a lot easier than messing about with manually managing memory. Well, unless you're a masochist. Cheers, Ash

You should wrap the LoadString WINAPI [^]. :) If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile. This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke [My articles]

Stephen Hewitt wrote: The output is: Hello world! and there it is. You dropped the bomb... home

See this[^] SO thread. It contains both usage of trim from Boost's string algorithms and custom trim implementations. :)

You can simulate CString::Mid by using substr[^]. Also have a look at this[^] excellent class. :)

The basic_string class which constructs the wstring object has multiple overloaded constructors to do this. To construct wstring from a single wchar_t character do the following - wchar_t Char = L'A'; std::wstring strChar(1, Char); Here 1 is the repeat count of Chars to be added to wstring. To construct wstring from an array of wchar_t characters it is more straight forward - wchar_t* Array = L"Hello"; std::wstring strArray(Array); «_Superman_» I love work. It gives me something to do between weekends. Microsoft MVP (Visual C++) Polymorphism in C

It is released at the next } ReturnType SomeClass::SomeFunction(SomeParams) { char buffer[1024] = {0}; // this a stack allocation // any code ... return ReturnType::SomeValue; } // buffer is deallocated here cheers, AR When the wise (person) points at the moon the fool looks at the finger (Chinese proverb)

The first thing to do is eliminate any usage of those two libraries in the interfaces of your classes. Then make sure you only depend on one of the libraries in the implementation of each class. This provides the facade behind which it doesn't matter how int8_t is defined. So hide the video stream format stuff behind one class, your decoder behind another: video_decoder ---> libavdecoder | | | \--> video_format ---> libavformat ---> means "depends on" No single implementation file needs to include both avdecoder.h and avformat.h. Anyway, the point is this lot will work however you package your classes, whether in a namsepaces or not. It doesn't matter. Also, as a couple of general points: - don't stick class implementations in header files - only include header files that contain types that are used in the interface of a class in a header file This reduces the sort of problems you're having no end. Cheers, Ash

Hi back, You can refer to a class that hasn't been defined (in simple terms not had it's .h included) but you can't do anything that requires the compiler to know the size or composition of the class. So, without the .h file you can... - declare a reference to an object of the class - declare a pointer to an object of the class - assign pointer to objects of the class You'd be pushed to say that this lot is "using" the class though. What you can't do... - call member functions of the class - do any sort of RTTI (run time type information) - get the size of the class which in turn means you can't create objects of the class Cheers, Ash

hi I have solved that by assigning correct parameters...(In setupVideoEncode(videoEncoderContext)). But now im getting crash in av_write_frame(..)inside that loop. :(( pls help me..

Did you call av_register_all() ? It's like CoInitialize, you need to call it before calling anything else. There is sufficient light for those who desire to see, and there is sufficient darkness for those of a contrary disposition. Blaise Pascal

FFMPEG is open source. Download and check the code. «_Superman_» I love work. It gives me something to do between weekends. Microsoft MVP (Visual C++)

Ok.Thanx

This should do it. This is the C++ concept of "a base class object can reference a derived class object". catch (connectionException& ce) { std::exception& e = ce; } «_Superman_» I love work. It gives me something to do between weekends. Microsoft MVP (Visual C++)

No idea - didn't look quite that far into the source (comutil.h in your VS distribution, if you want to look). Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p CodeProject MVP for 2010 - who'd'a thunk it!

You can use ostringstreams as described in the previous reply, or you could use Boost.Format[^], which gives you an interface more like CString::Format. Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p CodeProject MVP for 2010 - who'd'a thunk it!

it looks WMP doesnt know the codec. Somethings missing in the installation for WMP. :confused: Press F1 for help or google it. Greetings from Germany

Well, my answer was accurate... 1/100ms = 1/(0.1s) = 10 (per/s) = 10Hz. But you're right, he will have to be careful about units! Iain. I have now moved to Sweden for love (awwww).

Just try with supporting CODEC. CODEC missing may be the problem if your conversion was in right way...

hi I have implemented as following: UINT_PTR test = (UINT_PTR)processedJpegData; //This is the data to be written into AVI LPVOID p = reinterpret_cast<LPVOID>(test); if(!g_bCreated) { AVISTREAMINFO streamInfo; memset(&streamInfo, 0, sizeof(streamInfo)); streamInfo.fccType = streamtypeVIDEO; streamInfo.fccHandler = mmioFOURCC('M', 'J', 'P', 'G'); //streamInfo.fccHandler = mmioFOURCC('X', 'V', 'I', 'D'); streamInfo.dwScale = 1001; streamInfo.dwRate = 30000; streamInfo.dwSampleSize = 0; streamInfo.dwSuggestedBufferSize = 0 ; SetRect(&streamInfo.rcFrame, 0, 0,0,0);/* 720, 480,frameInfo.m_width, frameInfo.m_height*/ HRESULT hrCreate = AVIFileCreateStream(m_pAVIFile, &m_pVideoStream, &streamInfo); if (hrCreate!=AVIERR_OK) return ; BITMAPINFOHEADER *bi = new BITMAPINFOHEADER(); bi->biSize = sizeof(BITMAPINFOHEADER); bi->biWidth = 720; bi->biHeight = 480; bi->biPlanes = 1; bi->biBitCount = 16; bi->biCompression = mmioFOURCC('M', 'J', 'P', 'G'); // 0 = BI_RGB bi->biSizeImage = size; bi->biXPelsPerMeter= 0; bi->biYPelsPerMeter= 0; bi->biClrUsed = 0; bi->biClrImportant = 0; HRESULT hrSetformat = AVIStreamSetFormat(m_pVideoStream, 0,&bi, 40); if(hrSetformat != 0) return; g_nIndex = AVIStreamLength(m_pVideoStream); g_bCreated=true; } HRESULT hrStreamWrite = AVIStreamWrite(m_pVideoStream, g_nIndex++, 1, p,size, AVIIF_KEYFRAME, 0, 0); if (hrStreamWrite!=AVIERR_OK) return ; This executes successfully and creates the AVI file also.But the problem is in playing that AVI file.