#include?
#include?“stdlib.h“
#include?“avcodec.h“
#include?“avformat.h“
#include?“avutil.h“
#include?“flvdec.h“

bool?GetNextframe（AVFormatContext?*pFormatCtx?AVCodecContext?*pCodecCtx?int?videoStream?AVframe?*pframe）
{
????static?AVPacket?packet;
????static?int??????bytesRemaining=0;
????static?uint8_t??*rawData;
????static?bool?????fFirstTime=true;
????int?????????????bytesDecoded;
????int?????????????frameFinished;
????//?First?time?we‘re?called?set?packet.data?to?NULL?to?indicate?it
????//?doesn‘t?have?to?be?freed
????if（fFirstTime）
????{
????????fFirstTime=false;
????????packet.data=NULL;
????}
????//?Decode?packets?until?we?have?decoded?a?complete?frame
????while（true）
????{
????????//?Work?on?the?current?packet?until?we?have?decoded?all?of?it
????????while（bytesRemaining?>?0）
????????{
????????????//?Decode?the?next?chunk?of?data
????????????bytesDecoded=avcodec_decode_video（pCodecCtx?pframe
????????????????&frameFinished?rawData?bytesRemaining）;
????????????//?Was?there?an?error?
????????????if（bytesDecoded?????????????{
????????????????fprintf（stderr?“Error?while?decoding?frame\n“）;
????????????????return?false;
????????????}
????????????bytesRemaining-=bytesDecoded;
????????????rawData+=bytesDecoded;
????????????//?Did?we?finish?the?current?frame??Then?we?can?return
????????????if（frameFinished）
????????????????return?true;
????????}
????????//?Read?the?next?packet?skipping?all?packets?that?aren‘t?for?this
????????//?stream
????????do
????????{
????????????//?Free?old?packet
????????????if（packet.data!=NULL）
????????????????av_free_packet（&packet）;
????????????//?Read?new?packet
????????????if（/*av_read_packet*/av_read_frame（pFormatCtx?&packet）<0）
????????????????goto?loop_exit;
????????}?while（packet.stream_index!=videoStream）;
????????bytesRemaining=packet.size;
????????rawData=packet.data;
????}
loop_exit:
????//?Decode?the?rest?of?the?last?frame
????bytesDecoded=avcodec_decode_video（pCodecCtx?pframe?&frameFinished?
????????rawData?bytesRemaining）;
????//?Free?last?packet
????if（packet.data!=NULL）
????????av_free_packet（&packet）;
????return?frameFinished!=0;
}

void?Saveframe（AVframe?*pframe?int?width?int?height?int?iframe）
{
????FILE?*pFile;
????char?szFilename[32];
????int??y;

????//?Open?file
????sprintf（szFilename?“frame%d.ppm“?iframe）;
????pFile=fopen（szFilename?“wb“）;
????if（pFile==NULL）
????????return;
????//?Write?header
????fprintf（pFile?“P6\n%d?%d\n255\n“?width?height）;
????//?Write?pixel?data
????for（y=0;?y????????fwrite（pframe->data[0]+y*pframe->linesize[0]?1?width*3?pFile）;
????//?Close?file
????fclose（pFile）;
}
int?main（/*int?argc?char?*argv[]*/）
{
????AVFormatContext?*pFormatCtx;
unsigned?int?i;
????int??????????????videoStream;
????AVCodecContext??*pCodecCtx;
????AVCodec?????????*pCodec;
????AVframe?????????*pframe;?
????AVframe?????????*pframeRGB;
????int????????????

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

????I.A....??????6197??2011-10-28?14:07??ffmpeg\a.cpp

?????文件?????192359??2007-07-13?23:18??ffmpeg\FFMpeg?SDK?開發手冊.pdf

????I.A....????251655??2011-10-28?14:04??ffmpeg\ffmpeg+tutorial\ffmpeg+tutorial.pdf

????I.A....???4561034??2011-10-28?14:02??ffmpeg\ffmpeg+tutorial\ffmpegtutorial.rar

????I.A....???3900263??2011-10-27?10:36??ffmpeg\FFmpeg-full-SDK-3.2.rar

?????文件???11995722??2011-10-28?14:36??ffmpeg\ffmpeg_vc（ffplay）.rar

????I.A....???1664523??2011-10-28?14:03??ffmpeg\ffmpeg_初級教程.rar

????I.A....????102265??2011-10-28?14:01??ffmpeg\ffmpeg添加到vc工程詳解.pdf

????I.A....????220775??2011-10-28?14:06??ffmpeg\ffmpeg的編譯，API以及相關應用等資料ffmpeg_related.rar

????I.A....???4867577??2011-10-28?14:06??ffmpeg\sjwffmpeg.rar

?????文件?????116634??2011-10-28?15:21??ffmpeg\TestFFmpeg\Debug\StdAfx.obj

?????文件????1423235??2011-10-28?15:21??ffmpeg\TestFFmpeg\Debug\StdAfx.sbr

?????文件????3728384??2011-10-28?15:25??ffmpeg\TestFFmpeg\Debug\TestFFmpeg.bsc

?????文件??????14771??2011-10-28?15:21??ffmpeg\TestFFmpeg\Debug\TestFFmpeg.obj

?????文件????7265508??2011-10-28?15:21??ffmpeg\TestFFmpeg\Debug\TestFFmpeg.pch

?????文件?????312320??2011-10-28?15:25??ffmpeg\TestFFmpeg\Debug\TestFFmpeg.pdb

?????文件???????2588??2009-08-27?17:56??ffmpeg\TestFFmpeg\Debug\TestFFmpeg.res

?????文件??????????0??2011-10-28?15:21??ffmpeg\TestFFmpeg\Debug\TestFFmpeg.sbr

?????文件??????52929??2011-10-28?15:25??ffmpeg\TestFFmpeg\Debug\TestFFmpegDlg.obj

?????文件??????????0??2011-10-28?15:25??ffmpeg\TestFFmpeg\Debug\TestFFmpegDlg.sbr

?????文件?????263168??2011-10-28?15:25??ffmpeg\TestFFmpeg\Debug\vc60.idb

?????文件?????421888??2011-10-28?15:25??ffmpeg\TestFFmpeg\Debug\vc60.pdb

?????文件????????993??2007-08-09?10:23??ffmpeg\TestFFmpeg\include\adler32.h

?????文件???????9517??2007-08-09?09:33??ffmpeg\TestFFmpeg\include\allcodecs.h

?????文件??????95260??2009-08-27?13:06??ffmpeg\TestFFmpeg\include\avcodec.h

?????文件??????32928??2009-08-27?10:52??ffmpeg\TestFFmpeg\include\avformat.h

?????文件???????9406??2007-08-09?10:23??ffmpeg\TestFFmpeg\include\avio.h

?????文件???????3061??2007-08-09?10:23??ffmpeg\TestFFmpeg\include\avstring.h

?????文件???????6167??2007-08-12?10:23??ffmpeg\TestFFmpeg\include\avutil.h

?????文件???????1223??2007-08-09?10:23??ffmpeg\TestFFmpeg\include\base64.h

............此處省略57個文件信息