Wmv reading (IWMReaderCallbackAdvanced)

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4.00/5 (1 vote)

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C++

Windows

directshow

What should i do to make IWMReader call methods of IWMReaderCallbackAdvanced in my filter?

Posted 20-Dec-10 3:45am

Kozlov_Sergey

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[no name] 21-Dec-10 5:52am

Now IWMReaderCallbackAdvanced::OnStreamSample is called only with wStreamNum = 1.
I have used hr = m_pReaderAdvanced->SetReceiveStreamSamples(i+1,TRUE);
What should i also do?

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Kozlov_Sergey · Answer 1 · 2010-12-21T04:06:00

Solution 1

I try to use program from
http://social.msdn.microsoft.com/Forums/en-US/windowsdirectshowdevelopment/thread/b20bcfec-2204-474c-bdb7-e2abf1498ce4/[^]

And for my file situation is like there has been described: GUID_NULL for first video pin, and does not draw data from last video pin.

Did somebody used this filter?
For first pin isaw, that not GUID_NULL was set. When getting back it is GUID_NULL.
Can you help me?

Posted 21-Dec-10 4:06am

Kozlov_Sergey

Comments

[no name] 22-Dec-10 5:35am

I have changed std::map to std::list<PAIR_TYPE> to prevent sorting. Now intellegent connection works fine, manual causes exception.

[no name] 22-Dec-10 7:01am

Now the is no exception! Everything works fine! I had shoud not change intellegent pointer to ordinary.

Kozlov_Sergey · Answer 2 · 2010-12-22T01:05:00

CSS

class LIST_DATA
{
public:
    WORD first;
    WMFOutputPinPtr second;
};

typedef list<LIST_DATA> PinMap;

;
        // create the pin with a unique name
        WORD wStrLen = 0;
        pStream->GetStreamName(NULL, &wStrLen);
        smart_array<WCHAR>awch = new WCHAR[wStrLen];
        pStream->GetStreamName(awch, &wStrLen);
        WMFOutputPin *pin = new WMFOutputPin(this, &m_csFilter, &hr, awch);
		LIST_DATA local_stream_data;
		local_stream_data.first = wStream;
		local_stream_data.second = pin;
        // insert in map, using wStream as index
        m_Outputs.push_back(local_stream_data);
        // get the compressed media type from the profile for this stream
        IWMMediaPropsPtr pProps = pStream;

;