/****************************
?*??Black?Spoor?2018.02.08??*
?****************************/

#include?“CH264.h“

static?void?Init（struct?CH264Class?*int）;
static?void?Dispose（struct?CH264Class?*）;
static?int?InitDecode（struct?CH264Class?*?stu）;
static?void?SetFileName（struct?CH264Class?*char?*int）;
static?void?OpenFile（struct?CH264Class?*）;
static?void?CloseFile（struct?CH264Class?*）;

static?void?SetFileName（struct?CH264Class?*?stuchar?*?fileint?length）
{
	memset（stu->filename0sizeof（stu->filename））;
	strcpy（stu->filenamefile）;
}

static?int?GReadBuffer（void?*?opaque?uint8_t?*?buf?int?buf_size）
{
	if（opaque?!=?NULL）
	{
		CH264Class?*?decode?=?（CH264Class?*）?opaque;
		if（decode?!=?NULL）
		{
			//從文件讀數(shù)據(jù)
			if（!feof（decode->fp））
			{
				int?readlen?=?fread（buf1buf_sizedecode->fp）;
				return?readlen;
			}
		}
	}
	return?-1;
}?

static?void?OpenFile（struct?CH264Class?*?stu）
{
	fopen_s（&stu->fpstu->filename“rb“）;
}

static?void?CloseFile（struct?CH264Class?*?stu）
{
	fclose（stu->fp）;
}

static?int?InitDecode（struct?CH264Class?*?stu）
{
	AVDictionary?*?options?=?NULL;

	stu->decodeInited?=?-1;	

	stu->avio?=?avio_alloc_context（stu->aviobuffer40960stuGReadBufferNULLNULL）;
	stu->pFormatCtx->pb?=?stu->avio;
	stu->ifmt?=?NULL;

	if（avformat_open_input（&stu->pFormatCtxNULLstu->ifmt&options）!=0）
	{
		printf（“Couldn‘t?open?input?stream.\n“）;
		return?-1;
	}

	if（avformat_find_stream_info（stu->pFormatCtxNULL）<0）
	{
		printf（“Couldn‘t?find?stream?information.\n“）;
		return?-1;
	}

	stu->decodeInited?=?0;
	

	stu->videoindex=-1;
	//遍歷所有的流，并找到視頻流
	for（unsigned?int?i=0;?i?pFormatCtx->nb_streams;?i++）{?
		if（stu->pFormatCtx->streams[i]->codec->codec_type==AVMEDIA_TYPE_VIDEO）
		{
			stu->videoindex=i;
			break;
		}
	}

	//如果沒(méi)找到，報(bào)錯(cuò)返回
	if（stu->videoindex==-1）
	{
		printf（“Didn‘t?find?a?video?stream.\n“）;
		stu->pVideoCodecCtx?=NULL;
		stu->pVideoCodec?=?NULL;
		return?-1;
	}else{
		//記住視頻解碼器
		stu->pVideoCodecCtx=stu->pFormatCtx->streams[stu->videoindex]->codec;
		stu->pVideoCodec=avcodec_find_decoder（stu->pVideoCodecCtx->codec_id）;
		avcodec_open2（stu->pVideoCodecCtx?stu->pVideoCodecNULL）;
	}

	stu->pVideoframe?=?av_frame_alloc（）;
	
	return?0;
}

static?void?Init（struct?CH264Class?*?stu?int?index）
{
	//編碼器
	av_register_all（）;
	avformat_network_init（）;
	stu->pFormatCtx?=?avformat_alloc_context（）;
	avdevice_register_all（）;
	stu->aviobuffer?=?（unsigned?char?*）av_malloc（4096）;
}

static?void?Dispose（struct?CH264Class?*?stu）
{
	if（stu->pVideoCodecCtx!=NULL）
	{
		avcodec_close（stu->pVideoCodecCtx）;
	}

	avformat_close_input（&stu->pFormatCtx）;

	free（stu）;
}

CH264Class?*?CH264ClassCreate（void）
{
	CH264Class?*?stu?=?（CH264Class?*）malloc（sizeof（CH264Class））;
	memset（stu0sizeof（CH264Class））;

	stu->Init?=?Init;
	stu->Dispose?=?Dispose;

	stu->InitDecode?=?InitDecode;
	stu->SetFileName?=?SetFileName;

	stu->Open

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????3104??2018-02-08?11:42??C#H264格式視頻解碼\CH264Decode\CH264.cpp

?????文件????????985??2018-02-08?11:42??C#H264格式視頻解碼\CH264Decode\CH264.h

?????文件???????5345??2018-02-08?11:39??C#H264格式視頻解碼\CH264Decode\CH264Decode.vcxproj

?????文件???????1247??2018-02-08?11:04??C#H264格式視頻解碼\CH264Decode\CH264Decode.vcxproj.filters

?????文件??????????0??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\empty-file

?????文件???????9170??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\entries

?????文件??????????2??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\format

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\bs.h.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\cabac.c.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\cabac.h.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\clip1.h.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\common.c.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\common.h.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\cpu.c.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\cpu.h.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\csp.c.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\csp.h.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\dct.c.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\dct.h.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\display-x11.c.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\display.h.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\frame.c.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\frame.h.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\macroblock.c.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\macroblock.h.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\mc.c.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\mc.h.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\mdate.c.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\pixel.c.svn-base

?????文件??????????4??2005-12-07?12:41??C#H264格式視頻解碼\CH264Decode\common\.svn\prop-base\pixel.h.svn-base

............此處省略487個(gè)文件信息