live555移植笔记三 ubuntu下保存接收的RTSP数据并保存

本帖最后由 microcreat 于 2013-1-7 09:21 编辑

  在有上面的2个例子在ubuntu下面的成功的例子后，虽然能够播放了，但是想保存数据文件怎办？
看了下代码，结果发现，只有加一个参数就可以讲数据保存为文件:
  一，首先打开RTSP服务器:
root@microcreat:/workdir/private/live/mediaServer# pwd
/workdir/private/live/mediaServer
root@microcreat:/workdir/private/live/mediaServer# ls
COPYING                in_demo.264             Makefile.head
DynamicRTSPServer.cpp  live555MediaServer      Makefile.tail
DynamicRTSPServer.hh   live555MediaServer.cpp  version.hh
DynamicRTSPServer.o    live555MediaServer.o
in.264                 Makefile

root@microcreat:/workdir/private/live/mediaServer# ./live555MediaServer
LIVE555 Media Server
        version 0.75 (LIVE555 Streaming Media library version 2012.09.27).
Play streams from this server using the URL
        [url]rtsp://192.168.196.128/[/url]
where is a file present in the current directory.
Each file's type is inferred from its name suffix:
        ".264" => a H.264 Video Elementary Stream file
        ".aac" => an AAC Audio (ADTS format) file
        ".ac3" => an AC-3 Audio file
        ".amr" => an AMR Audio file
        ".dv" => a DV Video file
        ".m4e" => a MPEG-4 Video Elementary Stream file
        ".mkv" => a Matroska audio+video+(optional)subtitles file
        ".mp3" => a MPEG-1 or 2 Audio file
        ".mpg" => a MPEG-1 or 2 Program Stream (audio+video) file
        ".ts" => a MPEG Transport Stream file
                (a ".tsx" index file - if present - provides server 'trick play' support)
        ".wav" => a WAV Audio file
        ".webm" => a WebM audio(Vorbis)+video(VP8) file
See [url]http://www.live555.com/mediaServer/[/url] for additional documentation.
(We use port 80 for optional RTSP-over-HTTP tunneling, or for HTTP live streaming (for indexed Transport Stream files only).)
二，然后另外开一个终端:
root@microcreat:/workdir/private/live/testProgs# pwd
/workdir/private/live/testProgs
root@microcreat:/workdir/private/live/testProgs# ls
COPYING                             testMPEG1or2AudioVideoToDarwin.cpp
in.264                              testMPEG1or2AudioVideoToDarwin.o
Makefile                            testMPEG1or2ProgramToTransportStream
Makefile.head                       testMPEG1or2ProgramToTransportStream.cpp
Makefile.tail                       testMPEG1or2ProgramToTransportStream.o
microcreat-1-video-H264-1           testMPEG1or2Splitter
microcreat-video-H264-1             testMPEG1or2Splitter.cpp
MPEG2TransportStreamIndexer         testMPEG1or2Splitter.o
MPEG2TransportStreamIndexer.cpp     testMPEG1or2VideoReceiver
MPEG2TransportStreamIndexer.o       testMPEG1or2VideoReceiver.cpp
openRTSP                            testMPEG1or2VideoReceiver.o
openRTSP.cpp                        testMPEG1or2Video.sdp
openRTSP.o                          testMPEG1or2VideoStreamer
out.ts                              testMPEG1or2VideoStreamer.cpp
playCommon.cpp                      testMPEG1or2VideoStreamer.o
playCommon.hh                       testMPEG2TransportReceiver
playCommon.o                        testMPEG2TransportReceiver.cpp
playSIP                             testMPEG2TransportReceiver.o
playSIP.cpp                         testMPEG2Transport.sdp
playSIP.o                           testMPEG2TransportStreamer
sapWatch                            testMPEG2TransportStreamer.cpp
sapWatch.cpp                        testMPEG2TransportStreamer.o
sapWatch.o                          testMPEG2TransportStreamTrickPlay
testAMRAudioStreamer                testMPEG2TransportStreamTrickPlay.cpp
testAMRAudioStreamer.cpp            testMPEG2TransportStreamTrickPlay.o
testAMRAudioStreamer.o              testMPEG4VideoStreamer
testDVVideoStreamer                 testMPEG4VideoStreamer.cpp
testDVVideoStreamer.cpp             testMPEG4VideoStreamer.o
testDVVideoStreamer.o               testMPEG4VideoToDarwin
testGSMStreamer.cpp                 testMPEG4VideoToDarwin.cpp
testH264VideoStreamer               testMPEG4VideoToDarwin.o
testH264VideoStreamer.cpp           testOnDemandRTSPServer
testH264VideoStreamer.o             testOnDemandRTSPServer.cpp
testH264VideoToTransportStream      testOnDemandRTSPServer.o
testH264VideoToTransportStream.cpp  testRelay
testH264VideoToTransportStream.o    testRelay.cpp
testMP3Receiver                     testRelay.o
testMP3Receiver.cpp                 testReplicator
testMP3Receiver.o                   testReplicator.cpp
testMP3.sdp                         testReplicator.o
testMP3Streamer                     testRTSPClient
testMP3Streamer.cpp                 testRTSPClient.cpp
testMP3Streamer.o                   testRTSPClient.o
testMP3-using-ADUs.sdp              testWAVAudioStreamer
testMPEG1or2AudioVideo.sdp          testWAVAudioStreamer.cpp
testMPEG1or2AudioVideoStreamer      testWAVAudioStreamer.o
testMPEG1or2AudioVideoStreamer.cpp  vobStreamer
testMPEG1or2AudioVideoStreamer.o    vobStreamer.cpp
testMPEG1or2AudioVideoToDarwin      vobStreamer.o
root@microcreat:/workdir/private/live/testProgs# ./openRTSP -F microcreat- [url]rtsp://192.168.196.128/in.264[/url]
microcreat debug
Opening connection to 192.168.196.128, port 554...
...remote connection opened
Sending request: OPTIONS [url]rtsp://192.168.196.128/in.264[/url] RTSP/1.0
CSeq: 2
User-Agent: ./openRTSP (LIVE555 Streaming Media v2012.09.27)


Received 152 new bytes of response data.
Received a complete OPTIONS response:
RTSP/1.0 200 OK
CSeq: 2
Date: Mon, Jan 07 2013 01:12:21 GMT
Public: OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE, GET_PARAMETER, SET_PARAMETER


Sending request: DESCRIBE [url]rtsp://192.168.196.128/in.264[/url] RTSP/1.0
CSeq: 3
User-Agent: ./openRTSP (LIVE555 Streaming Media v2012.09.27)
Accept: application/sdp


Received 658 new bytes of response data.
Received a complete DESCRIBE response:
RTSP/1.0 200 OK
CSeq: 3
Date: Mon, Jan 07 2013 01:12:21 GMT
Content-Base: [url]rtsp://192.168.196.128/in.264/[/url]
Content-Type: application/sdp
Content-Length: 495

v=0
o=- 1357521141391924 1 IN IP4 192.168.196.128
s=H.264 Video, streamed by the LIVE555 Media Server
i=in.264
t=0 0
a=tool:LIVE555 Streaming Media v2012.09.27
a=type:broadcast
a=control:*
a=range:npt=0-
a=x-qt-text-nam:H.264 Video, streamed by the LIVE555 Media Server
a=x-qt-text-inf:in.264
m=video 0 RTP/AVP 96
c=IN IP4 0.0.0.0
b=AS:500
a=rtpmap:96 H264/90000
a=fmtp:96 packetization-mode=1;profile-level-id=42001E;sprop-parameter-sets=Z0IAHpWoLQSZ,aFOPIA==
a=control:track1

Opened URL "rtsp://192.168.196.128/in.264", returning a SDP description:
v=0
o=- 1357521141391924 1 IN IP4 192.168.196.128
s=H.264 Video, streamed by the LIVE555 Media Server
i=in.264
t=0 0
a=tool:LIVE555 Streaming Media v2012.09.27
a=type:broadcast
a=control:*
a=range:npt=0-
a=x-qt-text-nam:H.264 Video, streamed by the LIVE555 Media Server
a=x-qt-text-inf:in.264
m=video 0 RTP/AVP 96
c=IN IP4 0.0.0.0
b=AS:500
a=rtpmap:96 H264/90000
a=fmtp:96 packetization-mode=1;profile-level-id=42001E;sprop-parameter-sets=Z0IAHpWoLQSZ,aFOPIA==
a=control:track1

Created receiver for "video/H264" subsession (client ports 42010-42011)
Sending request: SETUP [url]rtsp://192.168.196.128/in.264/track1[/url] RTSP/1.0
CSeq: 4
User-Agent: ./openRTSP (LIVE555 Streaming Media v2012.09.27)
Transport: RTP/AVP;unicast;client_port=42010-42011


Received 209 new bytes of response data.
Received a complete SETUP response:
RTSP/1.0 200 OK
CSeq: 4
Date: Mon, Jan 07 2013 01:12:21 GMT
Transport: RTP/AVP;unicast;destination=192.168.196.128;source=192.168.196.128;client_port=42010-42011;server_port=6970-6971
Session: 60BFBE6B


Setup "video/H264" subsession (client ports 42010-42011)
Created output file: "microcreat-video-H264-1"
Sending request: PLAY [url]rtsp://192.168.196.128/in.264/[/url] RTSP/1.0
CSeq: 5
User-Agent: ./openRTSP (LIVE555 Streaming Media v2012.09.27)
Session: 60BFBE6B
Range: npt=0.000-


Received 184 new bytes of response data.
Received a complete PLAY response:
RTSP/1.0 200 OK
CSeq: 5
Date: Mon, Jan 07 2013 01:12:21 GMT
Range: npt=0.000-
Session: 60BFBE6B
RTP-Info: url=rtsp://192.168.196.128/in.264/track1;seq=45374;rtptime=2776738273


Started playing session
Receiving streamed data (signal with "kill -HUP 2050" or "kill -USR1 2050" to terminate)...
Received RTCP "BYE" on "video/H264" subsession (after 9 seconds)
Sending request: TEARDOWN [url]rtsp://192.168.196.128/in.264/[/url] RTSP/1.0
CSeq: 6
User-Agent: ./openRTSP (LIVE555 Streaming Media v2012.09.27)
Session: 60BFBE6B


Received 65 new bytes of response data.
Received a complete TEARDOWN response:
RTSP/1.0 200 OK
CSeq: 6
Date: Mon, Jan 07 2013 01:12:30 GMT

root@microcreat:/workdir/private/live/testProgs# ls microcreat* -l
-rw-r--r-- 1 root root 2389166 2013-01-07 09:12 microcreat-video-H264-1
这样就可以看到生成的文件了。
三，用mplayer验证此文件是否能够播放:
root@microcreat:/workdir/private/live/testProgs# mplayer microcreat-video-H264-1

OK,可以正常播放!

说明:
可能会有疑问，为什么文件名是这样的呢？
跟踪代码就可以看到这个问题:
打开:
vim playCommon.cpp

.............................
// Create an output file for each desired stream:
        char outFileName[1000];
        if (singleMedium == NULL) {
          // Output file name is
          //     "--"
          static unsigned streamCounter = 0;
          snprintf(outFileName, sizeof outFileName, "%s%s-%s-%d",
                   fileNamePrefix, subsession->mediumName(),
                   subsession->codecName(), ++streamCounter);
        } else {
          sprintf(outFileName, "stdout");
        }
.............................

可以看到最后的文件名由几部分组成:
filename-prefix medium_name codec_name counter
microcreat        video                  H264          1
其实执行这个demo程序，会自动保存为一个默认的名字，实际上已经源码已经做了这个方面的处理了！