/************************************************************************
**
**?作者：許振坪
**?日期：2017-05-03
**?博客：http://blog.csdn.net/benkaoya
**?描述：讀取IPC音視頻流數據示例代碼
**
************************************************************************/
#include?
#include?
#include?
#include?“onvif_comm.h“
#include?“onvif_dump.h“

#include?“libavcodec/avcodec.h“
#include?“libavdevice/avdevice.h“
#include?“libavformat/avformat.h“
#include?“libavfilter/avfilter.h“
#include?“libavutil/avutil.h“
#include?“libswscale/swscale.h“
#include?“libavutil/pixdesc.h“

/************************************************************************
**函數：open_rtsp
**功能：從RTSP獲取音視頻流數據
**參數：
????????[in]??rtsp?-?RTSP地址
**返回：無
************************************************************************/
void?open_rtsp（char?*rtsp）
{
????unsigned?int????i;
????int?????????????ret;
????int?????????????video_st_index?=?-1;
????int?????????????audio_st_index?=?-1;
????AVFormatContext?*ifmt_ctx?=?NULL;
????AVPacket????????pkt;
????AVStream????????*st?=?NULL;
????char????????????errbuf[64];

????av_register_all（）;??????????????????????????????????????????????????????????//?Register?all?codecs?and?formats?so?that?they?can?be?used.
????avformat_network_init（）;????????????????????????????????????????????????????//?Initialization?of?network?components

????if?（（ret?=?avformat_open_input（&ifmt_ctx?rtsp?0?NULL））?????????printf（“Could?not?open?input?file?‘%s‘?（error?‘%s‘）\n“?rtsp?av_make_error_string（errbuf?sizeof（errbuf）?ret））;
????????goto?EXIT;
????}

????if?（（ret?=?avformat_find_stream_info（ifmt_ctx?NULL））?????????printf（“Could?not?open?find?stream?info?（error?‘%s‘）\n“?av_make_error_string（errbuf?sizeof（errbuf）?ret））;
????????goto?EXIT;
????}

????for?（i?=?0;?i?nb_streams;?i++）?{????????????????????????????????//?dump?information
????????av_dump_format（ifmt_ctx?i?rtsp?0）;
????}

????for?（i?=?0;?i?nb_streams;?i++）?{????????????????????????????????//?find?video?stream?index
????????st?=?ifmt_ctx->streams[i];
????????switch（st->codec->codec_type）?{
????????case?AVMEDIA_TYPE_AUDIO:?audio_st_index?=?i;?break;
????????case?AVMEDIA_TYPE_VIDEO:?video_st_index?=?i;?break;
????????default:?break;
????????}
????}
????if?（-1?==?video_st_index）?{
????????printf（“No?H.264?video?stream?in?the?input?file\n“）;
????????goto?EXIT;
????}

????av_init_packet（&pkt）;???????????????????????????????????????????????????????//?initialize?packet.
????pkt.data?=?NULL;
????pkt.size?=?0;

????while?（1）
????{
????????do?{
????????????ret?=?av_read_frame（ifmt_ctx?&pkt）;????????????????????????????????//?read?frames
????????}?while?（ret?==?AVERROR（EAGAIN））;

????????if?（ret?????????????printf（“Could?not?read?frame?（error?‘%s‘）\n“?av_make_error_

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

?????文件???????3779??2017-05-19?10:57??snapshot\main.c

?????文件????????361??2017-05-19?10:57??snapshot\Makefile

?????文件???????5812??2017-05-19?10:57??systemtime\main.c

?????文件????????363??2017-05-19?10:57??systemtime\Makefile

?????文件????????880??2017-05-19?10:57??VS2010\project.sln

?????文件???????5596??2017-05-19?10:57??VS2010\project.vcxproj

?????文件????????482??2017-05-19?10:57??VS2010\project.vcxproj.user

?????文件????????564??2017-05-19?10:57??Makefile

?????文件???????3161??2017-05-19?10:57??Makefile.inc

?????文件????????464??2017-05-19?10:57??readme.txt

?????文件???????7398??2017-05-19?10:57??avstream\main.c

?????文件????????361??2017-05-19?10:57??avstream\Makefile

?????文件????????611??2017-05-19?10:57??capabilities\main.c

?????文件????????365??2017-05-19?10:57??capabilities\Makefile

?????文件??????14153??2017-05-19?10:57??comm\onvif_comm.c

?????文件???????3589??2017-05-19?10:57??comm\onvif_comm.h

?????文件??????43653??2017-05-19?10:57??comm\onvif_dump.c

?????文件???????2771??2017-05-19?10:57??comm\onvif_dump.h

?????文件???????1657??2017-05-19?10:57??deviceinfo\main.c

?????文件????????363??2017-05-19?10:57??deviceinfo\Makefile

?????文件????????463??2017-05-19?10:57??discovery\main.c

?????文件????????362??2017-05-19?10:57??discovery\Makefile

?????文件?????182538??2017-05-19?10:57??ffmpeg-linux-pc\include\libavcodec\avcodec.h

?????文件???????2654??2017-05-19?10:57??ffmpeg-linux-pc\include\libavcodec\avdct.h

?????文件???????3229??2017-05-19?10:57??ffmpeg-linux-pc\include\libavcodec\avfft.h

?????文件???????2965??2017-05-19?10:57??ffmpeg-linux-pc\include\libavcodec\d3d11va.h

?????文件???????4175??2017-05-19?10:57??ffmpeg-linux-pc\include\libavcodec\dirac.h

?????文件???????3798??2017-05-19?10:57??ffmpeg-linux-pc\include\libavcodec\dv_profile.h

?????文件???????2454??2017-05-19?10:57??ffmpeg-linux-pc\include\libavcodec\dxva2.h

?????文件???????3870??2017-05-19?10:57??ffmpeg-linux-pc\include\libavcodec\qsv.h

............此處省略448個文件信息