pcm音频重采样

使用ffmpeg的swresample进行pcm音频重采样

// stdafx.cpp : source file that includes just the standard includes
// TranscodingAudioUseSwrContext.pch will be the pre-compiled header
// stdafx.obj will contain the pre-compiled type information

#include “stdafx.h“

// TODO: reference any additional headers you need in STDAFX.H
// and not in this file

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2015-05-11 11:24  TranscodingAudioUseSwrContext\
     目录           0  2015-05-11 11:13  TranscodingAudioUseSwrContext\Debug\
     文件       37888  2015-05-11 11:22  TranscodingAudioUseSwrContext\Debug\TranscodingAudioUseSwrContext.exe
     文件      393984  2015-05-11 11:22  TranscodingAudioUseSwrContext\Debug\TranscodingAudioUseSwrContext.ilk
     文件      650240  2015-05-11 11:22  TranscodingAudioUseSwrContext\Debug\TranscodingAudioUseSwrContext.pdb
     目录           0  2015-05-11 10:17  TranscodingAudioUseSwrContext\ipch\
     目录           0  2015-05-11 10:17  TranscodingAudioUseSwrContext\ipch\transcodingaudiouseswrcontext-b668ddf6\
     文件     2162688  2015-05-11 10:17  TranscodingAudioUseSwrContext\ipch\transcodingaudiouseswrcontext-b668ddf6\transcodingaudiouseswrcontext-8be9c8c8.ipch
     目录           0  2015-05-11 11:06  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\
     文件         954  2015-05-08 14:40  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext.sln
     文件       27136  2015-05-11 11:24  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext.suo
     文件    18936320  2014-05-06 10:08  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\avcodec-55.dll
     文件     1340928  2014-05-06 10:08  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\avdevice-55.dll
     文件     2034688  2014-05-06 10:08  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\avfilter-4.dll
     文件     5342720  2014-05-06 10:08  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\avformat-55.dll
     文件      418304  2014-05-06 10:08  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\avutil-52.dll
     文件        8908  2015-05-11 10:59  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\befor_swr.txt
     文件     1709108  2014-01-05 12:46  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\cuc_ieschool.ts
     目录           0  2015-05-11 11:23  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\Debug\
     文件        2166  2015-05-11 11:22  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\Debug\cl.command.1.tlog
     文件       17204  2015-05-11 11:22  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\Debug\CL.read.1.tlog
     文件         888  2015-05-08 16:10  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\Debug\CL.read.2.tlog
     文件        2020  2015-05-11 11:22  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\Debug\CL.write.1.tlog
     文件           2  2015-05-11 11:22  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\Debug\link-cvtres.read.1.tlog
     文件           2  2015-05-11 11:22  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\Debug\link-cvtres.write.1.tlog
     文件           2  2015-05-11 11:22  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\Debug\link.1200-cvtres.read.1.tlog
     文件           2  2015-05-11 11:22  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\Debug\link.1200-cvtres.write.1.tlog
     文件           2  2015-05-11 11:22  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\Debug\link.1200.read.1.tlog
     文件           2  2015-05-11 11:22  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\Debug\link.1200.write.1.tlog
     文件           2  2015-05-11 11:22  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\Debug\link.1648-cvtres.read.1.tlog
     文件           2  2015-05-11 11:22  TranscodingAudioUseSwrContext\TranscodingAudioUseSwrContext\Debug\link.1648-cvtres.write.1.tlog
............此处省略168个文件信息