/*#define?inline?_inline
#ifndef?INT64_C
#define?INT64_C（c）?（c?##?LL）
#define?UINT64_C（c）?（c?##?ULL）
#endif*/
#ifdef?__cplusplus
extern?“C“?{
#endif

#include?
#include?
#include?
#includeame.h>
//#include
#ifdef?__cplusplus
}
#endif

#include?

#pragma?comment（lib?“avcodec.lib“）
#pragma?comment（lib?“avformat.lib“）
#pragma?comment（lib?“swscale.lib“）
#pragma?comment（lib?“avutil.lib“）
#include?

const?char*?filename?=?“d:\\1.flv“;


static?void?Saveframe（AVframe?*pframe?int?width?int?height?int?iframe）;

int?main（int?argc?char*?argv[]）
{
	AVFormatContext?*pFormatCtx（NULL）;
	int?i?=?0;
	int?videoStream?=?-1;
	AVCodecContext??*pCodecCtx（NULL）;
	AVCodec?????????*pCodec（NULL）;
	AVframe?????????*pframe（NULL）;
	AVframe?????????*pframeRGB（NULL）;
	int?????????????numBytes?=?-1;
	uint8_t?????????*buffer（NULL）;
	AVPacket????????packet;
	int?????????????frameFinished?=?-1;

	//?Register?all?formats?and?codecs
	av_register_all（）;
	//?Open?video?file
	if（avformat_open_input（&pFormatCtx?filename?NULL?NULL）!=0）
		return?-1;?//?Couldn‘t?open?file
???
	//?Retrieve?stream?information
	if?（avformat_find_stream_info（pFormatCtxNULL）<0）
		return?-1;?//?Couldn‘t?find?stream?information

	//?Dump?information?about?file?onto?standard?error
	av_dump_format（pFormatCtx?0?filename?false）;

	for?（i?=?0;?i?nb_streams;?i++）
	{
		if?（pFormatCtx->streams[i]->codec->codec_type?==?AVMEDIA_TYPE_VIDEO）
		{
			videoStream?=?i;
			break;
		}
	}
	if?（videoStream?==?-1）
		return?-1;?//?沒有找到視頻流video?stream??

	//?Get?a?pointer?to?the?codec?context?for?the?video?stream
	pCodecCtx?=?pFormatCtx->streams[videoStream]->codec;

	//?Find?the?decoder?for?the?video?stream
	pCodec?=?avcodec_find_decoder（pCodecCtx->codec_id）;
	if?（pCodec?==?NULL）
		return?-1;?//?Codec?not?found

????//?Open?codec
	if?（avcodec_open2（pCodecCtx?pCodecNULL）<0）
		return?-1;?//?Could?not?open?codec

	//?Hack?to?correct?wrong?frame?rates?that?seem?to?be?generated?by?some?codecs
	if?（pCodecCtx->time_base.num>1000?&&?pCodecCtx->time_base.den?==?1）
		pCodecCtx->time_base.den?=?1000;

	//?Allocate?video?frame
	pframe?=?av_frame_alloc（）;

	//?Allocate?an?AVframe?structure
	pframeRGB?=?av_frame_alloc（）;
	if?（pframeRGB?==?NULL）
		return?-1;

	//?Determine?required?buffer?size?and?allocate?buffer
	numBytes?=?avpicture_get_size（AV_PIX_FMT_RGB24?pCodecCtx->widthpCodecCtx->height）;

	//buffer=malloc（numBytes）;
	buffer?=?（uint8_t?*）av_malloc（numBytes?*?sizeof（uint8_t））;

	//?Assign?appropriate?parts?of?buffer?to?image?planes?in?pframeRGB
	avpicture_fill（（AVPicture?*）pframeRGB?buffer?AV_PIX_FMT_RGB24
		pCodecCtx->width?pCodecCtx->height）;


	//?Read?frames?and?save?first?five?frames?to?disk
	i?=?0;
	while?（av_read_frame（pFormatCtx?&packet）?>=?0）
	{
		//?Is?this?a?packet?from?th

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-02-05?18:25??ffmpeg64\
?????目錄???????????0??2018-02-05?18:25??ffmpeg64\include\
?????目錄???????????0??2018-02-05?18:25??ffmpeg64\include\libavcodec\
?????文件??????217771??2017-12-13?02:10??ffmpeg64\include\libavcodec\avcodec.h
?????文件????????2570??2017-12-13?02:10??ffmpeg64\include\libavcodec\avdct.h
?????文件????????3111??2017-12-13?02:10??ffmpeg64\include\libavcodec\avfft.h
?????文件????????2853??2017-12-13?02:10??ffmpeg64\include\libavcodec\d3d11va.h
?????文件????????4044??2017-12-13?02:10??ffmpeg64\include\libavcodec\dirac.h
?????文件????????3715??2017-12-13?02:10??ffmpeg64\include\libavcodec\dv_profile.h
?????文件????????2361??2017-12-13?02:10??ffmpeg64\include\libavcodec\dxva2.h
?????文件????????1650??2017-12-13?02:10??ffmpeg64\include\libavcodec\jni.h
?????文件????????2825??2017-12-13?02:10??ffmpeg64\include\libavcodec\mediacodec.h
?????文件????????3763??2017-12-13?02:10??ffmpeg64\include\libavcodec\qsv.h
?????文件????????4550??2017-12-13?02:10??ffmpeg64\include\libavcodec\vaapi.h
?????文件????????5928??2017-12-13?02:10??ffmpeg64\include\libavcodec\vda.h
?????文件????????7865??2017-12-13?02:10??ffmpeg64\include\libavcodec\vdpau.h
?????文件????????8269??2017-12-13?02:10??ffmpeg64\include\libavcodec\version.h
?????文件????????4029??2017-12-13?02:10??ffmpeg64\include\libavcodec\videotoolbox.h
?????文件????????2285??2017-12-13?02:10??ffmpeg64\include\libavcodec\vorbis_parser.h
?????文件????????6062??2017-12-13?02:10??ffmpeg64\include\libavcodec\xvmc.h
?????目錄???????????0??2018-02-05?18:25??ffmpeg64\include\libavdevice\
?????文件???????17918??2017-12-13?02:10??ffmpeg64\include\libavdevice\avdevice.h
?????文件????????1861??2017-12-13?02:10??ffmpeg64\include\libavdevice\version.h
?????目錄???????????0??2018-02-05?18:25??ffmpeg64\include\libavfilter\
?????文件???????43095??2017-12-13?02:10??ffmpeg64\include\libavfilter\avfilter.h
?????文件?????????975??2017-12-13?02:10??ffmpeg64\include\libavfilter\avfiltergraph.h
?????文件????????6316??2017-12-13?02:10??ffmpeg64\include\libavfilter\buffersink.h
?????文件????????6608??2017-12-13?02:10??ffmpeg64\include\libavfilter\buffersrc.h
?????文件????????2696??2017-12-13?02:10??ffmpeg64\include\libavfilter\version.h
?????目錄???????????0??2018-02-05?18:25??ffmpeg64\include\libavformat\
?????文件??????115772??2017-12-13?02:10??ffmpeg64\include\libavformat\avformat.h
............此處省略137個(gè)文件信息