/**
?*?最簡單的基于FFmpeg的推流器（推送RTMP）
?*?Simplest?FFmpeg?Streamer?（Send?RTMP）
?*?
?*?雷霄驊?Lei?Xiaohua
?*?leixiaohua1020@126.com
?*?中國傳媒大學/數字電視技術
?*?Communication?University?of?China?/?Digital?TV?Technology
?*?http://blog.csdn.net/leixiaohua1020
?*?
?*?本例子實現了推送本地視頻至流媒體服務器（以RTMP為例）。
?*?是使用FFmpeg進行流媒體推送最簡單的教程。
?*
?*?This?example?stream?local?media?files?to?streaming?media?
?*?server?（Use?RTMP?as?example）.?
?*?It‘s?the?simplest?FFmpeg?streamer.
?*?
?*/

#include?

#define?__STDC_CONSTANT_MACROS

#ifdef?_WIN32
//Windows
extern?“C“
{
#include?“libavformat/avformat.h“
#include?“libavutil/mathematics.h“
#include?“libavutil/time.h“
};
#else
//Linux...
#ifdef?__cplusplus
extern?“C“
{
#endif
#include?
#include?
#include?
#ifdef?__cplusplus
};
#endif
#endif

int?main（int?argc?char*?argv[]）
{
	AVOutputFormat?*ofmt?=?NULL;
	//輸入對應一個AVFormatContext，輸出對應一個AVFormatContext
	//（Input?AVFormatContext?and?Output?AVFormatContext）
	AVFormatContext?*ifmt_ctx?=?NULL?*ofmt_ctx?=?NULL;
	AVPacket?pkt;
	const?char?*in_filename?*out_filename;
	int?ret?i;
	int?videoindex=-1;
	int?frame_index=0;
	int64_t?start_time=0;
	//in_filename??=?“cuc_ieschool.mov“;
	//in_filename??=?“cuc_ieschool.mkv“;
	//in_filename??=?“cuc_ieschool.ts“;
	//in_filename??=?“cuc_ieschool.mp4“;
	//in_filename??=?“cuc_ieschool.h264“;
	in_filename??=?“cuc_ieschool.flv“;//輸入URL（Input?file?URL）
	//in_filename??=?“shanghai03_p.h264“;
	
	out_filename?=?“rtmp://live.butel.com/live/dbf4“;//輸出?URL（Output?URL）[RTMP]
	//out_filename?=?“rtp://233.233.233.233:6666“;//輸出?URL（Output?URL）[UDP]

	av_register_all（）;
	//Network
	avformat_network_init（）;
	//輸入（Input）
	if?（（ret?=?avformat_open_input（&ifmt_ctx?in_filename?0?0））?		printf（?“Could?not?open?input?file.“）;
		goto?end;
	}
	if?（（ret?=?avformat_find_stream_info（ifmt_ctx?0））?		printf（?“Failed?to?retrieve?input?stream?information“）;
		goto?end;
	}

	for（i=0;?inb_streams;?i++）?
		if（ifmt_ctx->streams[i]->codec->codec_type==AVMEDIA_TYPE_VIDEO）{
			videoindex=i;
			break;
		}

	av_dump_format（ifmt_ctx?0?in_filename?0）;

	//輸出（Output）
	
	avformat_alloc_output_context2（&ofmt_ctx?NULL?“flv“?out_filename）;?//RTMP
	//avformat_alloc_output_context2（&ofmt_ctx?NULL?“mpegts“?out_filename）;//UDP

	if?（!ofmt_ctx）?{
		printf（?“Could?not?create?output?context\n“）;
		ret?=?AVERROR_UNKNOWN;
		goto?end;
	}
	ofmt?=?ofmt_ctx->oformat;
	for?（i?=?0;?i?nb_streams;?i++）?{
		//根據輸入流創建輸出流（Create?output?AVStream?according?to?input?AVStream）
		AVStream?*in_stream?=?ifmt_ctx->streams[i];
		AVStream?*out_stream?=?avformat_new_stream（ofmt_ctx?in_stream->codec->codec）;
		if?（!out_stream）?{
			printf（?“Failed?allocating?output?stream\n“）;
			ret?=?AVERROR_UNKNOWN;
			goto?end;
		}
		//復制AVCodecContext的設置（Copy?the?settings?of?AVCodecContext）
		ret?=?avcodec_copy_context（out_s

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

?????文件???18936320??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\Debug\avcodec-55.dll

?????文件????1340928??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\Debug\avdevice-55.dll

?????文件????2034688??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\Debug\avfilter-4.dll

?????文件????5342720??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\Debug\avformat-55.dll

?????文件?????418304??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\Debug\avutil-52.dll

?????文件????????644??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\Debug\compile_cl.bat

?????文件????????444??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\Debug\compile_gcc.sh

?????文件????????464??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\Debug\compile_mingw.sh

?????文件????1688360??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\Debug\cuc_ieschool.flv

?????文件?????121344??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\Debug\postproc-52.dll

?????文件??????40960??2018-07-27?17:53??simplest_ffmpeg_streamer_1.1\Debug\simplest_ffmpeg_streamer.exe

?????文件?????264724??2018-07-27?17:53??simplest_ffmpeg_streamer_1.1\Debug\simplest_ffmpeg_streamer.ilk

?????文件?????551936??2018-07-27?17:53??simplest_ffmpeg_streamer_1.1\Debug\simplest_ffmpeg_streamer.pdb

?????文件?????275968??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\Debug\swresample-0.dll

?????文件?????434176??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\Debug\swscale-2.dll

?????文件????????534??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\ReadMe.txt

?????文件?????????61??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\simplest_ffmpeg_streamer\.gitignore

?????文件???18936320??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\simplest_ffmpeg_streamer\avcodec-55.dll

?????文件????1340928??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\simplest_ffmpeg_streamer\avdevice-55.dll

?????文件????2034688??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\simplest_ffmpeg_streamer\avfilter-4.dll

?????文件????5342720??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\simplest_ffmpeg_streamer\avformat-55.dll

?????文件?????418304??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\simplest_ffmpeg_streamer\avutil-52.dll

?????文件????????644??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\simplest_ffmpeg_streamer\compile_cl.bat

?????文件????????444??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\simplest_ffmpeg_streamer\compile_gcc.sh

?????文件????????464??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\simplest_ffmpeg_streamer\compile_mingw.sh

?????文件????1688360??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\simplest_ffmpeg_streamer\cuc_ieschool.flv

?????文件???????5721??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\simplest_ffmpeg_streamer\include\inttypes.h

?????文件?????175612??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\simplest_ffmpeg_streamer\include\libavcodec\avcodec.h

?????文件???????3111??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\simplest_ffmpeg_streamer\include\libavcodec\avfft.h

?????文件???????2392??2015-02-13?01:38??simplest_ffmpeg_streamer_1.1\simplest_ffmpeg_streamer\include\libavcodec\dxva2.h

............此處省略120個文件信息