/**
**?作者：pengweizhi
**?郵箱：1795387053@qq.com
**/

#include?“stdafx.h“
#include?“AVInputStream.h“

static?std::string?AnsiToUTF8（const?char?*_ansi?int?_ansi_len）
{
	std::string?str_utf8（““）;
	wchar_t*?pUnicode?=?NULL;
	BYTE?*?pUtfData?=?NULL;
	do
	{
		int?unicodeNeed?=?MultiByteToWideChar（CP_ACP?0?_ansi?_ansi_len?NULL?0）;
		pUnicode?=?new?wchar_t[unicodeNeed?+?1];
		memset（pUnicode?0?（unicodeNeed?+?1）*sizeof（wchar_t））;
		int?unicodeDone?=?MultiByteToWideChar（CP_ACP?0?_ansi?_ansi_len?（LPWSTR）pUnicode?unicodeNeed）;

		if?（unicodeDone?!=?unicodeNeed）
		{
			break;
		}

		int?utfNeed?=?WideCharToMultiByte（CP_UTF8?0?（LPWSTR）pUnicode?unicodeDone?（char?*）pUtfData?0?NULL?NULL）;
		pUtfData?=?new?BYTE[utfNeed?+?1];
		memset（pUtfData?0?utfNeed?+?1）;
		int?utfDone?=?WideCharToMultiByte（CP_UTF8?0?（LPWSTR）pUnicode?unicodeDone?（char?*）pUtfData?utfNeed?NULL?NULL）;

		if?（utfNeed?!=?utfDone）
		{
			break;
		}
		str_utf8.assign（（char?*）pUtfData）;
	}?while?（false）;

	if?（pUnicode）
	{
		delete[]?pUnicode;
	}
	if?（pUtfData）
	{
		delete[]?pUtfData;
	}

	return?str_utf8;
}

CAVInputStream::CAVInputStream（void）
{
	m_hCapVideoThread?=?NULL;
	m_hCapAudioThread?=?NULL;
	m_exit_thread?=?false;

	m_pVidFmtCtx?=?NULL;
	m_pAudFmtCtx?=?NULL;
	m_pInputFormat?=?NULL;

	dec_pkt?=?NULL;

	m_pVideoCBFunc?=?NULL;
	m_pAudioCBFunc?=?NULL;

	m_videoindex?=?-1;
	m_audioindex?=?-1;

	m_start_time?=?0;

	//avcodec_register_all（）;
?//???av_register_all（）;
	//avdevice_register_all（）;??
}

CAVInputStream::~CAVInputStream（void）
{
	CloseInputStream（）;
}

	
void??CAVInputStream::SetVideoCaptureCB（VideoCaptureCB?pFuncCB）
{
	m_pVideoCBFunc?=?pFuncCB;
}
	
void??CAVInputStream::SetAudioCaptureCB（AudioCaptureCB?pFuncCB）
{
	m_pAudioCBFunc?=?pFuncCB;
}
	
void??CAVInputStream::SetVideoCaptureDevice（string?device_name）
{
	m_video_device?=?device_name;
}

void??CAVInputStream::SetAudioCaptureDevice（string?device_name）
{
	m_audio_device?=?device_name;
}


bool??CAVInputStream::OpenInputStream（）
{
	if（m_video_device.empty（）?&&?m_audio_device.empty（））
	{
		ATLTRACE（“you?have?not?set?any?capture?device?\n“）;
		return?false;
	}


	int?i;

	//打開Directshow設備前需要調用FFmpeg的avdevice_register_all函數，否則下面返回失敗
	m_pInputFormat?=?av_find_input_format（“dshow“）;
	ASSERT（m_pInputFormat?!=?NULL）;

????//?Set?device?params
????AVDictionary?*device_param?=?0;
	//if?not?setting?rtbufsize?error?messages?will?be?shown?in?cmd?but?you?can?still?watch?or?record?the?stream?correctly?in?most?time
	//setting?rtbufsize?will?erase?those?error?messages?however?larger?rtbufsize?will?bring?latency
????//av_dict_set（&device_param?“rtbufsize“?“10M“?0）;

	if（!m_video_device.empty（））
	{
		int?res?=?0;

		string?device_name?=?“video=“?+?m_video_device;

		string?device_name_utf8?=?AnsiToUTF8（device_name.c_str（）?device_name.length（））;??//轉成UTF-8，解決設備名稱包含中文字符出現亂碼的問題

		?//Set?own?vide

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-02-15?17:48??Bin\
?????文件??????565760??2018-02-15?17:48??Bin\AVCaptureStream.exe
?????文件????19646464??2014-12-31?06:21??Bin\avcodec-56.dll
?????文件?????1367552??2014-12-31?06:21??Bin\avdevice-56.dll
?????文件?????2314752??2014-12-31?06:21??Bin\avfilter-5.dll
?????文件?????5839360??2014-12-31?06:21??Bin\avformat-56.dll
?????文件??????452096??2014-12-31?06:21??Bin\avutil-54.dll
?????文件??????????67??2018-02-15?17:49??Bin\Config.ini
?????文件???????92160??2018-02-10?20:57??Bin\EnumDevice.dll
?????文件??????121344??2014-12-31?06:21??Bin\postproc-53.dll
?????文件??????270336??2014-12-31?06:21??Bin\swresample-1.dll
?????文件??????446976??2014-12-31?06:21??Bin\swscale-3.dll
?????目錄???????????0??2018-02-15?17:49??src\
?????文件?????????895??2018-02-11?11:09??src\AVCaptureStream.sln
?????文件???????79872??2018-02-15?17:48??src\AVCaptureStream.suo
?????文件???????11184??2018-02-15?17:33??src\AVCaptureStream.vcproj
?????文件???????12373??2018-02-15?13:38??src\AVInputStream.cpp
?????文件????????1636??2018-02-13?11:19??src\AVInputStream.h
?????文件???????19104??2018-02-15?17:30??src\AVOutputStream.cpp
?????文件????????1942??2018-02-14?18:03??src\AVOutputStream.h
?????文件?????????772??2015-06-19?09:53??src\ChildView.cpp
?????文件?????????408??2015-06-19?09:53??src\ChildView.h
?????文件????????6736??2018-02-12?11:16??src\ImagePainter.cpp
?????文件?????????950??2018-02-12?10:37??src\ImagePainter.h
?????目錄???????????0??2018-02-11?23:20??src\include\
?????文件?????????808??2018-02-10?21:09??src\include\EnumDevice.h
?????文件????????5729??2015-06-19?09:53??src\include\inttypes.h
?????目錄???????????0??2017-12-15?20:24??src\include\libavcodec\
?????文件??????179819??2015-06-19?09:53??src\include\libavcodec\avcodec.h
?????文件????????3111??2015-06-19?09:53??src\include\libavcodec\avfft.h
?????文件????????3764??2015-06-19?09:53??src\include\libavcodec\dv_profile.h
............此處省略122個文件信息