对于我的应用程序,我必须从 Decklink 卡流式传输到 Android 应用程序(我必须是实时流,因此 HLS 或 RTSP 似乎是很好的解决方案,因为我的应用程序针对 Android 3+)。我用decklink sdk重新编译了VLC,我可以通过网络直播到另一台电脑(但它只能用RTSP工作60秒)。
这是我尝试过的:
HTTP 流:
./vlc -vvv decklink:// --sout '#transcode{vcodec=mp4v,acodec=mpga,vb=56,ab=24,channels=1} :standard{access=http{use-key-frames},mux=ts,dst=:3001/stream.mpeg}'
它适用于 Android VLC 0.0.11,但仅适用于 WiFi,不适用于 3G。而且我无法使用 VideoView 在我的应用程序中播放它。这是我使用的代码和相应的错误消息:
String url = "http://134.246.63.169:5554/stream.mpeg";
VideoView videoView = (VideoView) this.findViewById(R.id.videoView);
videoView.setVideoURI(Uri.parse(url));
videoView.setMediaController(new MediaController(this));
videoView.requestFocus();
videoView.start();
错误信息:
04-08 15:26:46.272: D/MediaPlayer(16349): Couldn't open file on client side, trying server side
04-08 15:26:46.272: V/ChromiumHTTPDataSource(7680): connect on behalf of uid 1080867789
04-08 15:26:46.272: I/ChromiumHTTPDataSource(7680): connect to http://134.246.63.169:8554/ @0
04-08 15:26:46.302: I/AwesomePlayer(7680): AwesomePlayer::AwesomePlayer()in
04-08 15:26:46.302: I/AwesomePlayer(7680): AwesomePlayer::AwesomePlayer()aftermClient.connect()
04-08 15:26:46.302: I/AwesomePlayer(7680): setDataSource_l('http://134.246.63.169:5554/')
04-08 15:26:46.302: W/MediaPlayer(16349): info/warning (701, 0)
04-08 15:26:46.302: V/ChromiumHTTPDataSource(7680): connect on behalf of uid 10067
04-08 15:26:46.302: I/ChromiumHTTPDataSource(7680): connect to http://134.246.63.169:5554/ @0
04-08 15:26:46.342: I/ActivityManager(272): Displayed fr.ifremer.testrtsp/.MainActivity: +183ms
04-08 15:26:46.382: I/MediaPlayer(16349): Info (701,0)
04-08 15:27:07.592: E/MediaPlayer(16349): error (1, -2147483648)
04-08 15:27:07.592: E/MediaPlayer(16349): Error (1,-2147483648)
- 实时传输协议:
我在此页面上使用了 Google 推荐的编码选项,例如:
- 视频编解码器:h264
- 音频编解码器:AAC
- 视频比特率:56
- 音频比特率:24
- 音频通道:1
尺寸:176x144
./vlc -vvv decklink:// --sout-ffmpeg-strict=-2 --sout '#transcode{width=176,height=144,vcodec=h264,acodec=mp4a,vb=56,ab=24,channels=1} :rtp{dst=134.246.63.169,port-video=5554,port-audio=5556,sdp=rtsp://134.246.63.169:5554/stream.sdp}'
我可以在 VLC 桌面播放流,但不能在 Android 中播放(即使在 Android VLC 版本或默认的 Google 视频播放器中:/ )。如果我不指定复用器,我也可以播放它 QuickTime(如果我指定复用器,ts 或 ps,我没有视频。如果我尝试另一个复用器,VLC 告诉我只允许使用 ts或 RTP 中的 ps)
如果我尝试使用 Google 视频播放器,我会在 locat 中收到这些消息:
04-08 15:32:45.792: D/MediaPlayer(13688): Couldn't open file on client side, trying server side
04-08 15:32:45.802: W/MediaPlayer(13688): info/warning (701, 0)
04-08 15:32:45.812: I/MediaPlayer(13688): Info (701,0)
04-08 15:32:45.812: D/MediaPlayer(13688): getMetadata
04-08 15:32:45.812: E/MediaPlayerService(7680): getMetadata failed -38
04-08 15:32:45.852: I/MyHandler(7680): connection request completed with result 0 (Success)
04-08 15:32:45.882: I/ARTSPConnection(7680): status: RTSP/1.0 200 OK
04-08 15:32:45.882: I/MyHandler(7680): DESCRIBE completed with result 0 (Success)
04-08 15:32:45.882: I/ASessionDescription(7680): v=0
04-08 15:32:45.882: I/ASessionDescription(7680): o=- 15352003113363922923 15352003113363922923 IN IP4 to63-169.ifremer.fr
04-08 15:32:45.882: I/ASessionDescription(7680): s=Unnamed
04-08 15:32:45.882: I/ASessionDescription(7680): i=N/A
04-08 15:32:45.882: I/ASessionDescription(7680): c=IN IP4 134.246.63.169
04-08 15:32:45.882: I/ASessionDescription(7680): t=0 0
04-08 15:32:45.882: I/ASessionDescription(7680): a=tool:vlc 2.0.5
04-08 15:32:45.882: I/ASessionDescription(7680): a=recvonly
04-08 15:32:45.882: I/ASessionDescription(7680): a=type:broadcast
04-08 15:32:45.882: I/ASessionDescription(7680): a=charset:UTF-8
04-08 15:32:45.882: I/ASessionDescription(7680): a=control:rtsp://134.246.63.169:5554/stream.sdp
04-08 15:32:45.882: I/ASessionDescription(7680): m=audio 5556 RTP/AVP 96
04-08 15:32:45.882: I/ASessionDescription(7680): b=AS:24
04-08 15:32:45.882: I/ASessionDescription(7680): b=RR:0
04-08 15:32:45.882: I/ASessionDescription(7680): a=rtpmap:96 mpeg4-generic/48000
04-08 15:32:45.882: I/ASessionDescription(7680): a=fmtp:96 streamtype=5; profile-level-id=15; mode=AAC-hbr; config=118856e500; SizeLength=13; IndexLength=3; IndexDeltaLength=3; Profile=1;
04-08 15:32:45.882: I/ASessionDescription(7680): a=control:rtsp://134.246.63.169:5554/stream.sdp/trackID=0
04-08 15:32:45.882: I/ASessionDescription(7680): m=video 5554 RTP/AVP 96
04-08 15:32:45.882: I/ASessionDescription(7680): b=AS:56
04-08 15:32:45.882: I/ASessionDescription(7680): b=RR:0
04-08 15:32:45.882: I/ASessionDescription(7680): a=rtpmap:96 H264/90000
04-08 15:32:45.882: I/ASessionDescription(7680): a=fmtp:96 packetization-mode=1;profile-level-id=64000b;sprop-parameter-sets=Z2QAC6zZQsTv/AC0ALBAAAADAEAAAAyjxQplgA==,aOvssiw=;
04-08 15:32:45.882: I/ASessionDescription(7680): a=control:rtsp://134.246.63.169:5554/stream.sdp/trackID=1
04-08 15:32:45.982: I/ARTSPConnection(7680): status: RTSP/1.0 200 OK
04-08 15:32:45.982: I/MyHandler(7680): SETUP(1) completed with result 0 (Success)
04-08 15:32:45.982: I/MyHandler(7680): server specified timeout of 60 secs.
04-08 15:32:45.992: W/MyHandler(7680): Missing 'source' field in Transport response. Using RTSP endpoint address.
04-08 15:32:45.992: I/APacketSource(7680): dimensions 176x144
04-08 15:32:46.012: I/ARTSPConnection(7680): status: RTSP/1.0 200 OK
04-08 15:32:46.022: I/MyHandler(7680): SETUP(2) completed with result 0 (Success)
04-08 15:32:46.022: I/MyHandler(7680): server specified timeout of 60 secs.
04-08 15:32:46.022: W/MyHandler(7680): Missing 'source' field in Transport response. Using RTSP endpoint address.
04-08 15:32:46.022: W/MyHandler(7680): Server picked an odd RTP port, it should've picked an even one, we'll let it pass for now, but this may break in the future.
04-08 15:32:46.082: I/ARTSPConnection(7680): status: RTSP/1.0 200 OK
04-08 15:32:46.082: D/dalvikvm(13688): GC_FOR_ALLOC freed 303K, 7% free 9289K/9927K, paused 35ms, total 36ms
04-08 15:32:46.092: I/MyHandler(7680): PLAY completed with result 0 (Success)
04-08 15:32:46.092: I/MyHandler(7680): This is a live stream
04-08 15:32:48.262: D/AudioHardware(7680): AudioHardware pcm playback is going to standby.
04-08 15:32:48.262: D/AudioHardware(7680): closePcmOut_l() mPcmOpenCnt: 1
04-08 15:32:56.092: W/MyHandler(7680): Never received any data, switching transports.
04-08 15:32:56.112: I/ARTSPConnection(7680): status: RTSP/1.0 200 OK
04-08 15:32:56.122: I/MyHandler(7680): TEARDOWN completed with result 0 (Success)
04-08 15:32:56.122: I/MyHandler(7680): connection request completed with result 0 (Success)
04-08 15:32:56.152: I/ARTSPConnection(7680): status: RTSP/1.0 200 OK
04-08 15:32:56.152: I/MyHandler(7680): DESCRIBE completed with result 0 (Success)
04-08 15:32:56.152: I/ASessionDescription(7680): v=0
04-08 15:32:56.152: I/ASessionDescription(7680): o=- 15352003157473632156 15352003157473632156 IN IP4 to63-169.ifremer.fr
04-08 15:32:56.152: I/ASessionDescription(7680): s=Unnamed
04-08 15:32:56.152: I/ASessionDescription(7680): i=N/A
04-08 15:32:56.152: I/ASessionDescription(7680): c=IN IP4 134.246.63.169
04-08 15:32:56.152: I/ASessionDescription(7680): t=0 0
04-08 15:32:56.152: I/ASessionDescription(7680): a=tool:vlc 2.0.5
04-08 15:32:56.152: I/ASessionDescription(7680): a=recvonly
04-08 15:32:56.152: I/ASessionDescription(7680): a=type:broadcast
04-08 15:32:56.152: I/ASessionDescription(7680): a=charset:UTF-8
04-08 15:32:56.152: I/ASessionDescription(7680): a=control:rtsp://134.246.63.169:5554/stream.sdp
04-08 15:32:56.152: I/ASessionDescription(7680): m=audio 5556 RTP/AVP 96
04-08 15:32:56.152: I/ASessionDescription(7680): b=AS:24
04-08 15:32:56.152: I/ASessionDescription(7680): b=RR:0
04-08 15:32:56.152: I/ASessionDescription(7680): a=rtpmap:96 mpeg4-generic/48000
04-08 15:32:56.152: I/ASessionDescription(7680): a=fmtp:96 streamtype=5; profile-level-id=15; mode=AAC-hbr; config=118856e500; SizeLength=13; IndexLength=3; IndexDeltaLength=3; Profile=1;
04-08 15:32:56.152: I/ASessionDescription(7680): a=control:rtsp://134.246.63.169:5554/stream.sdp/trackID=0
04-08 15:32:56.152: I/ASessionDescription(7680): m=video 5554 RTP/AVP 96
04-08 15:32:56.152: I/ASessionDescription(7680): b=AS:56
04-08 15:32:56.152: I/ASessionDescription(7680): b=RR:0
04-08 15:32:56.152: I/ASessionDescription(7680): a=rtpmap:96 H264/90000
04-08 15:32:56.152: I/ASessionDescription(7680): a=fmtp:96 packetization-mode=1;profile-level-id=64000b;sprop-parameter-sets=Z2QAC6zZQsTv/AC0ALBAAAADAEAAAAyjxQplgA==,aOvssiw=;
04-08 15:32:56.152: I/ASessionDescription(7680): a=control:rtsp://134.246.63.169:5554/stream.sdp/trackID=1
04-08 15:32:56.222: I/ARTSPConnection(7680): status: RTSP/1.0 461 Unsupported transport
04-08 15:32:56.222: I/MyHandler(7680): SETUP(1) completed with result 0 (Success)
04-08 15:32:56.222: I/APacketSource(7680): dimensions 176x144
04-08 15:32:56.242: I/ARTSPConnection(7680): status: RTSP/1.0 461 Unsupported transport
04-08 15:32:56.252: I/MyHandler(7680): SETUP(2) completed with result 0 (Success)
04-08 15:32:56.272: E/MediaPlayer(13688): error (1, -2147483648)
04-08 15:32:56.272: E/MediaPlayer(13688): Error (1,-2147483648)
04-08 15:32:56.272: D/VideoView(13688): Error: 1,-2147483648
我想问题出在“状态:RTSP/1.0 461 不支持的传输”上,但我看不出我可以改变什么:我已经打开了我使用的端口,并且确实在另一台计算机上接收到视频。
在安卓手机上,我可以播放我在网上找到的一些 rtsp 流,例如这个:rtsp://184.72.239.149/vod/mp4:BigBuckBunny_115k.mov。所以应该是可以的。
如果有人可以帮助...!