/*
*最簡單的錄音程序
*繆國凱?MK
*821486004@qq.com
*本程序實現采集麥克風音頻數據，壓制為aac
*2015-6-19
*/


#include?“stdafx.h“
#include?
#include?
#include?
#pragma?comment（lib“Strmiids“）
#pragma?comment（lib“comsuppw.lib“）
#include?
#pragma?comment（lib“winmm“）
#define	SAFE_RELEASE（x）	{if（x?!=?NULL）?x->Release（）;x=NULL;}

#ifdef?__cplusplus
extern?“C“
{
#endif
#include?“libavcodec/avcodec.h“
#include?“libavformat/avformat.h“
#include?“libswscale/swscale.h“
#include?“libavdevice/avdevice.h“
#include?“libavutil/audio_fifo.h“

#pragma?comment（lib?“avcodec.lib“）
#pragma?comment（lib?“avformat.lib“）
#pragma?comment（lib?“avutil.lib“）
#pragma?comment（lib?“avdevice.lib“）
#pragma?comment（lib?“avfilter.lib“）
//#pragma?comment（lib?“postproc.lib“）
//#pragma?comment（lib?“swresample.lib“）
//#pragma?comment（lib?“swscale.lib“）
#ifdef?__cplusplus
};
#endif

_bstr_t	strDeviceName;

static?char?*dup_wchar_to_utf8（wchar_t?*w）;

int?_tmain（int?argc?_TCHAR*?argv[]）
{
	AVFormatContext		*	pFmtCtx?=?NULL?*ofmt_ctx_a?=?NULL;
	AVInputFormat		*	pAudioInputFmt?=?NULL;
	AVOutputFormat		*	pAudioOutputFmt?=?NULL;
	AVStream			*	pAudioStream?=?NULL;
	AVCodecContext		*	pOutputCodecCtx?=?NULL;
	AVCodecContext		*	pInputCodecCtx?=?NULL;
	AVCodec				*	pCodec?=?NULL;
	AVframe				*	pAudioframe?=?NULL;
	uint8_t				*	pframeBuffer?=?NULL;
	int						iAudioIndex?=?-1;
	//注冊FFMPEG庫
	av_register_all（）;
	avdevice_register_all（）;
	
	//查找輸入方式
	pAudioInputFmt?=av_find_input_format（“dshow“）;
	assert（pAudioInputFmt?!=?NULL）;
	//以Direct?Show的方式打開設備，并將?輸入方式?關聯到格式上下文
	char?*?psDevName?=?dup_wchar_to_utf8（L“audio=麥克風?（Realtek?High?Definition?Au“）;
	assert（avformat_open_input（&pFmtCtxpsDevNamepAudioInputFmtNULL）?==?0）;

//	avformat_find_stream_info（pFmtCtxNULL）;

	if（avformat_find_stream_info（pFmtCtxNULL）<0）??
		return?-1;?

	for（int?i=0;?inb_streams;?i++）?
	{
		if（pFmtCtx->streams[i]->codec->codec_type==AVMEDIA_TYPE_AUDIO）
		{
			iAudioIndex=i;
			AVCodec?*tmpCodec?=?avcodec_find_decoder（pFmtCtx->streams[i]->codec->codec_id）;
			if（0?>?avcodec_open2（pFmtCtx->streams[i]->codec?tmpCodec?NULL））
			{
				printf（“can?not?find?or?open?decoder!\n“）;
			}

			break;
		}
	}

	av_dump_format（pFmtCtx?0?NULL?0）;



	avformat_alloc_output_context2（&ofmt_ctx_a?NULL?NULL?“abc.aac“）;
	
	pAudioStream?=?avformat_new_stream（ofmt_ctx_a?NULL）;
	pAudioStream->codec->codec?=?avcodec_find_encoder（ofmt_ctx_a->oformat->audio_codec）;

	pOutputCodecCtx?=?pAudioStream->codec;

	pOutputCodecCtx->sample_rate?=?pFmtCtx->streams[0]->codec->sample_rate;
	pOutputCodecCtx->channel_layout?=?ofmt_ctx_a->streams[0]->codec->channel_layout;
	pOutputCodecCtx->channels?=?av_get_channel_layout_nb_channels（pAudioStream->codec->channel_layout）;
	if（pOutputCodecCtx->channel_layout?==?0）
	{
		pOutputCodecCtx->channel_layout?=?AV_CH_LAYOUT_STEREO;
		pOutputCodecCtx->channels?=?av_get_channel_layout_nb_c

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-06-19?15:33??AudioCapture\
?????目錄???????????0??2015-06-19?15:23??AudioCapture\AudioCapture\
?????文件?????????903??2015-06-16?14:09??AudioCapture\AudioCapture.sln
?????文件???????16896??2015-06-19?15:33??AudioCapture\AudioCapture.suo
?????文件??????112133??2015-06-19?15:23??AudioCapture\AudioCapture\abc.aac
?????文件????????8760??2015-06-19?15:32??AudioCapture\AudioCapture\AudioCapture.cpp
?????文件????????4481??2015-06-16?14:12??AudioCapture\AudioCapture\AudioCapture.vcxproj
?????文件????????1336??2015-06-16?14:09??AudioCapture\AudioCapture\AudioCapture.vcxproj.filters
?????文件?????????143??2015-06-16?14:09??AudioCapture\AudioCapture\AudioCapture.vcxproj.user
?????文件?????????165??2015-06-16?14:09??AudioCapture\AudioCapture\AudioCapture1.cpp
?????文件????18936320??2014-05-06?10:08??AudioCapture\AudioCapture\avcodec-55.dll
?????文件?????1340928??2014-05-06?10:08??AudioCapture\AudioCapture\avdevice-55.dll
?????文件?????2034688??2014-05-06?10:08??AudioCapture\AudioCapture\avfilter-4.dll
?????文件?????5342720??2014-05-06?10:08??AudioCapture\AudioCapture\avformat-55.dll
?????文件??????418304??2014-05-06?10:08??AudioCapture\AudioCapture\avutil-52.dll
?????目錄???????????0??2015-06-19?15:27??AudioCapture\AudioCapture\Debug\
?????文件?????????406??2015-06-16?14:13??AudioCapture\AudioCapture\Debug\AudioCapture.exe.embed.manifest
?????文件?????????472??2015-06-16?14:13??AudioCapture\AudioCapture\Debug\AudioCapture.exe.embed.manifest.res
?????文件?????????381??2015-06-19?15:27??AudioCapture\AudioCapture\Debug\AudioCapture.exe.intermediate.manifest
?????文件??????????92??2015-06-19?15:27??AudioCapture\AudioCapture\Debug\AudioCapture.lastbuildstate
?????文件????????2952??2015-06-19?15:27??AudioCapture\AudioCapture\Debug\AudioCapture.log
?????文件???????87250??2015-06-19?15:27??AudioCapture\AudioCapture\Debug\AudioCapture.obj
?????文件???????88039??2015-06-16?14:28??AudioCapture\AudioCapture\Debug\audiocapture.obj.enc
?????文件?????1114112??2015-06-16?14:12??AudioCapture\AudioCapture\Debug\AudioCapture.pch
?????文件?????????713??2015-06-16?14:11??AudioCapture\AudioCapture\Debug\AudioCapture.vcxprojResolveAssemblyReference.cache
?????文件???????????0??2015-06-16?14:11??AudioCapture\AudioCapture\Debug\AudioCapture.write.1.tlog
?????文件?????????214??2015-06-16?14:12??AudioCapture\AudioCapture\Debug\AudioCapture_manifest.rc
?????文件????????1662??2015-06-19?15:27??AudioCapture\AudioCapture\Debug\cl.command.1.tlog
?????文件???????26936??2015-06-19?15:27??AudioCapture\AudioCapture\Debug\CL.read.1.tlog
?????文件???????19762??2015-06-19?15:27??AudioCapture\AudioCapture\Debug\CL.read.2.tlog
?????文件????????2282??2015-06-19?14:57??AudioCapture\AudioCapture\Debug\CL.read.3.tlog
............此處省略171個文件信息