Re: Re: [Ffmpeg-devel] problem of decoding mpeg4 ps streamwithlibavformatand libavcodec

[楚材]

Here is my code, please help me to find the error.thanks!!!
these code is in a thread function.

	CSlot* pThis = (CSlot*)lParam;
    AVProbeData   pd;
	ByteIOContext ByteIOCtx;

	//Wait for enough data to begin demux
	WaitForSingleObject(pThis->m_hStartEvent,INFINITE);

	av_register_all();

	if(!pThis->m_bStart) return TRUE;
	pThis->m_bDecoding = TRUE;

	pd.buf = new unsigned char[MIN_PROBE_SIZE];
	pd.buf_size = MIN_PROBE_SIZE;
	pd.filename = "";
	int hr = fifo_read(&pThis->m_recvBuffer,pd.buf,MIN_PROBE_SIZE,NULL);
	AVInputFormat* fmt = av_probe_input_format(&pd,1);
	if(!fmt)
	{
		TRACE("av_probe_input_format failed!\n");
		delete [] pd.buf;
		pd.buf_size = 0;
		return FALSE;
	}
	TRACE("stream type:%s\n",fmt->long_name);
	delete [] pd.buf;

	fmt->flags |= AVFMT_NOFILE;

	init_put_byte(&ByteIOCtx,pThis->m_pReadBuffer,FILE_READ_SIZE,0,pThis,IORead,NULL,IOSeek);

	AVFormatContext* pFormatCtx = NULL;

	if(av_open_input_stream(&pFormatCtx,&ByteIOCtx,"",fmt,NULL) < 0)
	{
		TRACE("av_open_input_stream failed!\n");
		return FALSE;
	}

	if(av_find_stream_info(pFormatCtx) < 0)
	{
		TRACE("av_find_stream_info ????????!\n");
		return FALSE;
	}
	TRACE("av_find_stream_info result:%d\n",pFormatCtx->nb_streams);

	#if defined(_DEBUG)
	AVCodecContext* pCodecCtx = pFormatCtx->streams[0]->codec;
	TRACE("coded_width=%d,coded_height=%d\n",pCodecCtx->coded_width,pCodecCtx->coded_height);
	#endif

	...... ...... ...... ......
------------------				 
??
2006-08-22

av_open_input_file() calls av_open_input_stream() to actually open the
file.  Whatever works with one should work with the other, if you're
using them properly.

-- 
M?ns Rullg?rd
mru at inprovide.com
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