//?convertVideo.cpp?:?定義控制臺應用程序的入口點。
//
#include?“stdafx.h“
#include?
#include?
#include?

using?namespace?std;

extern?“C“??
{??
#define?__STDC_CONSTANT_MACROS
#define?__STDC_FORMAT_MACROS
#include?“l(fā)ibavcodec/avcodec.h“??
#include?“l(fā)ibavformat/avformat.h“??
#include?“l(fā)ibavfilter/avfiltergraph.h“???
#include?“l(fā)ibavfilter/buffersink.h“??
#include?“l(fā)ibavfilter/buffersrc.h“??
#include?“l(fā)ibavutil/avutil.h“??
#include?“l(fā)ibavutil/opt.h“??
#include?“l(fā)ibavutil/pixdesc.h“?
#include?“l(fā)ibavutil/imgutils.h“
#include?“l(fā)ibavutil/avassert.h“
#include?“l(fā)ibavutil/channel_layout.h“
#include?“l(fā)ibavutil/opt.h“
#include?“l(fā)ibavutil/mathematics.h“
#include?“l(fā)ibswscale/swscale.h“
#include?“l(fā)ibswresample/swresample.h“
#include?“l(fā)ibavutil/audio_fifo.h“
};?



int?_tmain（int?argc?_TCHAR*?argv[]）
{


	
	string?infilename=“sixcount.mp4“;
	string?outfilename=“out.wmv“;
	int?videowidth=640;
	int?videoheight=360;
	int?videoframerate=5;
	int?audiochannel=1;
	int?audiosamplerate=16000;
	int?audiobitrate=24000;
	av_register_all（）;??

	?AVFormatContext?*pinfileFormatCtx?=?NULL;?
	if（avformat_open_input（&pinfileFormatCtx?infilename.c_str（）?NULL?NULL）!=0）?
	
????????goto?end1;
??
????if（avformat_find_stream_info（pinfileFormatCtxNULL）<0）??
???????goto?end1;?
???//找流
	int???invideoStream=-1;
	int??inaudioStream=-1;?
	for（int?i=0;?inb_streams;?i++）
	{
		if（pinfileFormatCtx->streams[i]->codecpar->codec_type?==?AVMEDIA_TYPE_AUDIO）??
		{
			inaudioStream=i;
		}
		if（pinfileFormatCtx->streams[i]->codecpar->codec_type?==?AVMEDIA_TYPE_VIDEO）??
		{
			invideoStream=i;
		}

	}
	
//創(chuàng)建音頻解碼器
AVCodecContext?*pinfileaudiocodectx=NULL;
if（inaudioStream>=0）
{
	pinfileaudiocodectx=avcodec_alloc_context3（NULL）;
	avcodec_parameters_to_context（pinfileaudiocodectxpinfileFormatCtx->streams[inaudioStream]->codecpar）;
	if?（avcodec_open2（pinfileaudiocodectx?avcodec_find_decoder（pinfileaudiocodectx->codec_id）?NULL）?		goto?end2;

}
//創(chuàng)建視頻解碼器
AVCodecContext?*pinfilevideocodectx=NULL;
if（invideoStream>=0）
{
pinfilevideocodectx=avcodec_alloc_context3（NULL）;
avcodec_parameters_to_context（pinfilevideocodectxpinfileFormatCtx->streams[invideoStream]->codecpar）;
if?（avcodec_open2（pinfilevideocodectx?avcodec_find_decoder（pinfilevideocodectx->codec_id）?NULL）?	goto?end3;
}

//初始化輸出文件
AVFormatContext??*outformat_ctx=?NULL;
int?outret=avformat_alloc_output_context2（&outformat_ctxNULL?NULLoutfilename.c_str（））;
if?（!outformat_ctx）
{
	goto?end4;
}
if?（avio_open（&outformat_ctx->pboutfilename.c_str（）?AVIO_FLAG_WRITE）?{

	goto?end4;
}
//創(chuàng)建音頻編碼器
AVCodecContext?*?pCodecCtxaudioenconder=NULL;
if（inaudioStream!=-1）
{
	AVCodec?*?audiocodec=avcodec_find_encoder（outformat_ctx->oformat->audio_codec）;
	pCodecCtxaudioenconder?=avcodec_alloc_context3（audiocodec）;
	pCodecCtxaudioenconder->sample_fmt=audiocodec->sample_fmts[0];
	pCodecCtxaudioenconder->chann

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????362496??2013-08-22?13:47??ffmpeg轉碼代碼\TestForConvertVideo\AudioIntercom.dll

?????文件???24946688??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\avcodec-57.dll

?????文件????2010624??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\avdevice-57.dll

?????文件????4503040??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\avfilter-6.dll

?????文件????5009920??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\avformat-57.dll

?????文件?????687104??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\avutil-55.dll

?????文件??????15335??2017-12-20?14:27??ffmpeg轉碼代碼\TestForConvertVideo\convertVideo.cpp

?????文件????1709108??2014-01-05?12:46??ffmpeg轉碼代碼\TestForConvertVideo\cuc_ieschool.ts

?????文件?????????96??2017-12-20?14:37??ffmpeg轉碼代碼\TestForConvertVideo\Debug\TestForConvertVideo.log

?????文件????1645320??2012-03-05?15:40??ffmpeg轉碼代碼\TestForConvertVideo\gdiplus.dll

?????文件???????5721??2015-02-13?01:39??ffmpeg轉碼代碼\TestForConvertVideo\include\inttypes.h

?????文件?????214604??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\avcodec.h

?????文件???????2570??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\avdct.h

?????文件???????3111??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\avfft.h

?????文件???????2853??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\d3d11va.h

?????文件???????4044??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\dirac.h

?????文件???????3715??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\dv_profile.h

?????文件???????2361??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\dxva2.h

?????文件???????1650??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\jni.h

?????文件???????2825??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\mediacodec.h

?????文件???????3763??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\qsv.h

?????文件???????4550??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\vaapi.h

?????文件???????5928??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\vda.h

?????文件???????7865??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\vdpau.h

?????文件???????8269??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\version.h

?????文件???????4029??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\videotoolbox.h

?????文件???????2285??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\vorbis_parser.h

?????文件???????6062??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavcodec\xvmc.h

?????文件??????17918??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavdevice\avdevice.h

?????文件???????1861??2017-04-25?21:34??ffmpeg轉碼代碼\TestForConvertVideo\include\libavdevice\version.h

............此處省略149個文件信息