The VideoLAN Forums

Posted: **08 Jun 2013 22:49**

Hey guys. Im still working on VLC and Http Live Streaming, which is working out pretty well. Output:

[0x413158] access_output_livehttp access out: LiveHttpSegmentComplete: /stream-44.ts (44)
[0x413158] access_output_livehttp access out: LiveHttpIndexComplete: /index.m3u8
[0x413158] access_output_livehttp access out debug: Successfully opened livehttp file: /stream-45.ts (45)
Sending request: GET_PARAMETER rtsp://<stream url> RTSP/1.0
CSeq: 14
User-Agent: LibVLC/2.0.3 (LIVE555 Streaming Media v2012.05.17)
Session: <some session key>

So up to above it is working fine, making .ts files and updating its m3u8. But then suddenly you will see the following line:

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[0x412f28] idummy demux: command `quit'

And it just stops. So I tried to recreate this but have then with more verbosity (vlc -vvv)
And then I see the following:

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[0x40d3c8] live555 demux debug: StreamClose
[0x40b4f8] main input debug: EOF reached
[0x40b4f8] main input debug: waiting decoder fifos to empty
[0x40b4f8] main input debug: waiting decoder fifos to empty
[0x4e1148] main playlist debug: finished input
[0x3a4530] main decoder debug: removing module "packetizer_h264"
[0x3a4530] main decoder debug: killing decoder fourcc `h264', 0 PES in FIFO
[0x411548] main stream output debug: removing a sout input (sout_input:0x410d20)
[0x40cb18] mux_ts mux debug: removing input pid=68
[0x40cb18] mux_ts mux debug: new PCR PID is 8191
[0x40cb18] main mux warning: no more input streams for this mux
[0x40d3c8] main demux debug: removing module "live555"
Sending request: TEARDOWN rtsp://<url> RTSP/1.0
CSeq: 15
User-Agent: LibVLC/2.0.3 (LIVE555 Streaming Media v2012.05.17)
Session: <sessionkey>


[0x40b4f8] main input debug: Program doesn't contain anymore ES
[0x4e1148] main playlist debug: dead input
[0x411548] main stream output debug: destroying useless sout
[0x411910] main stream out debug: destroying chain... (name=std)
[0x411910] main stream out debug: removing module "stream_out_standard"
[0x40cb18] main mux debug: removing module "mux_ts"
[0x413158] main access out debug: removing module "access_output_livehttp"
[0x413158] access_output_livehttp access out: LiveHttpSegmentComplete: /stream-45.ts (45)
[0x413158] access_output_livehttp access out: LiveHttpIndexComplete: /index.m3u8
[0x413158] access_output_livehttp access out debug: livehttp access output closed
[0x411910] main stream out debug: destroying chain done
[0x40b4f8] main input debug: TIMER input launching for 'rtsp://<sream>' : 531.905 ms - Total 531.905 ms / 1 intvls (Avg 531.905 ms)
[0x4e1148] main playlist debug: changing item without a request (current 0/2)
[0x4e1148] main playlist debug: using item 1
[0x4e1148] main playlist debug: starting playback of the new playlist item
[0x4e1148] main playlist debug: resyncing on quit
[0x4e1148] main playlist debug: quit is at 1
[0x4e1148] main playlist debug: creating new input thread
[0x40b4f8] main input debug: Creating an input for 'quit'
[0x40b4f8] main input debug: using timeshift granularity of 50 MiB, in path '/tmp'
[0x40b4f8] main input debug: `vlc://quit' gives access `vlc' demux `' path `quit'
[0x40b4f8] main input debug: creating demux: access='vlc' demux='' location='quit' file='(null)'
[0x412f28] main demux debug: looking for access_demux module: 1 candidate
[0x412f28] idummy demux: command `quit' 
[0x37cd30] main libvlc debug: exiting
[0x37cd30] main libvlc debug: deactivating the playlist
[0x4e1148] main playlist debug: deactivating the playlist
[0x4e1148] main playlist debug: incoming request - stopping current input
[0x4e1148] main playlist debug: dying input
[0x412f28] main demux debug: using access_demux module "idummy"
[0x412f28] main demux debug: TIMER module_need() : 79.100 ms - Total 79.100 ms / 1 intvls (Avg 79.100 ms)
[0x413148] main demux meta debug: looking for meta reader module: 2 candidates
[0x413148] lua demux meta debug: Trying Lua scripts in /home/pi/.local/share/vlc/lua/meta/reader
[0x413148] lua demux meta debug: Trying Lua scripts in /usr/lib/vlc/lua/meta/reader
[0x413148] lua demux meta debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/reader/filename.luac
[0x413148] lua demux meta debug: Trying Lua scripts in /usr/share/vlc/lua/meta/reader
[0x413148] main demux meta debug: no meta reader module matching "any" could be loaded
[0x413148] main demux meta debug: TIMER module_need() : 59.437 ms - Total 59.437 ms / 1 intvls (Avg 59.437 ms)
[0x40b4f8] main input debug: `vlc://quit' successfully opened
[0x4e1148] main playlist debug: dying input
[0x4e1148] main playlist debug: dying input
[0x412f28] main demux debug: removing module "idummy"
[0x4e1148] main playlist debug: dead input
[0x40b4f8] main input debug: TIMER input launching for 'quit' : 181.895 ms - Total 181.895 ms / 1 intvls (Avg 181.895 ms)
[0x40b4f8] main playlist export debug: saving Media Library to file /home/pi/.local/share/vlc/ml.xspf
[0x40b4f8] main playlist export debug: looking for playlist export module: 1 candidate
[0x40b4f8] main playlist export debug: using playlist export module "export"
[0x40b4f8] main playlist export debug: TIMER module_need() : 16.124 ms - Total 16.124 ms / 1 intvls (Avg 16.124 ms)
[0x40b4f8] main playlist export debug: removing module "export"
[0x4e1148] main playlist debug: playlist correctly deactivated
[0x37cd30] main libvlc debug: removing all services discovery tasks
[0x37cd30] main libvlc debug: removing all interfaces
[0x39dad8] main interface debug: removing module "dummy"
[0x414f88] main interface debug: removing module "hotkeys"
[0x4e1148] main playlist debug: destroying
[0x37cd30] main libvlc debug: TIMER ML Load : Total 237.591 ms / 1 intvls (Avg 237.591 ms)
[0x37cd30] main libvlc debug: TIMER Items array build : Total 8.945 ms / 2 intvls (Avg 4.472 ms)
[0x37cd30] main libvlc debug: TIMER Preparse run : Total 7.702 ms / 1 intvls (Avg 7.702 ms)
[0x37cd30] main libvlc debug: TIMER ML Dump : Total 429.431 ms / 1 intvls (Avg 429.431 ms)
[0x37cd30] main libvlc debug: removing stats
[0x37cd30] main libvlc debug: removing module "memcpy"

It would seem the input died, but this is not the case. RTSP stream is on 24/7. Even if it did temporarely die or something: when I use my Desktop to RTSP stream a movie (mp4 file) instead - to for instance my Macbook, the same thing happens. So it isnt a dying input. Camera setup is over the internet which may cause trouble, but my Desktop setup is a local network (100Mbps).

It happens completely at random. Usually just having one VLC works out, where this problem occurs more often when I have a couple of VLC working on streams.After a minute or two it generally stops. But on one of my many testruns I had 8x VLC working fine until I stopped them myself (7 min). Strangely different results I have to say.

I really can't figure out a reason why VLC quits. I need it to stay alive ! Help is much appreciated!

Posted: **09 Jun 2013 11:52**

You have a "vlc://quit" item somewhere in your playlist or VLM configuration.

Posted: **09 Jun 2013 13:30**

Yes I did. Removing it seemed to work, but after some testing it doesnt appear to have helped. I still get the following, only VLC doesnt terminate itself now

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[0x14ca958] access_output_livehttp access out: LiveHttpIndexComplete: /index.m3u8
[0x14db958] access_output_livehttp access out: LiveHttpSegmentComplete: /stream-8.ts (8)
Sending request: GET_PARAMETER rtsp://<ip> RTSP/1.0
CSeq: 8
User-Agent: LibVLC/2.0.3 (LIVE555 Streaming Media v2012.05.17)
Session: <sess>

[0x1237d48] live555 demux debug: StreamClose
[0x11bd238] main input debug: EOF reached
[0x11bd238] main input debug: waiting decoder fifos to empty
[0x1231590] main playlist debug: finished input
[0x123bb60] main decoder debug: removing module "packetizer_h264"
[0x123bb60] main decoder debug: killing decoder fourcc `h264', 0 PES in FIFO
[0x1237ea8] main stream output debug: removing a sout input (sout_input:0x123c3c0)
[0x123b5e0] mux_ts mux debug: removing input pid=68
[0x123b5e0] mux_ts mux debug: new PCR PID is 8191
[0x123b5e0] main mux warning: no more input streams for this mux
[0x1237d48] main demux debug: removing module "live555"
Sending request: TEARDOWN rtsp://<ip> RTSP/1.0
CSeq: 9
User-Agent: LibVLC/2.0.3 (LIVE555 Streaming Media v2012.05.17)
Session: <session>

Probably hard to get around, but the input stream is not dead at all. My input stream in these tests is VLC on a different PC, streaming out an mp4 in rtsp obviously. Over a wired LAN connection of 100Mb/s.

Seems that the issue is that I'm not getting a response from the GET_PARAMETER package. Because sometimes when streaming succesfully I see these lines:

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Sending request: GET_PARAMETER rtsp://<ip> RTSP/1.0
CSeq: 7
User-Agent: LibVLC/2.0.3 (LIVE555 Streaming Media v2012.05.17)
Session: <sess>


Received 166 new bytes of response data.
Received a complete GET_PARAMETER response:
RTSP/1.0 200 OK
Server: VLC/2.0.6
Date: Sun, 09 Jun 2013 11:43:14 GMT
Session: <sess>, timeout=60
Content-Length: 0
Cache-Control: no-cache
Cseq: 7

Reckon there's any way I could fix this myself ? Like have VLC send more then one request if the first one wasnt a succes ?

Edit #10
Trying out to force a TCP connection to make sure the GET_PARAMETER response arrives. Since the destination is a LAN anyway, I guess the extra overhead is alright. It's working well thus far. (Past 4 minutes).. Ill get back to this in a bit.
Edit
Right. Okay, it seems I cant force TCP because I see "Transport not supported" in the debug info, after which VLC client sends a SETUP packet and then gets a response with UDP again. Pffffft... To be precise: on the VLC server I set Advanced settings -> Streaming -> Sout-stream-> RTP -> Transport Protocol to TCP. Also, when activating the stream I add "proto=tcp" in the generated command line code.
On the VLC client connecting and creating a HLS livestream I use --rtsp-tcp. I get these prints:

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Sending request: SETUP rtsp://<ip>/trackID=1 RTSP/1.0
CSeq: 4
User-Agent: LibVLC/2.0.3 (LIVE555 Streaming Media v2012.05.17)
Transport: RTP/AVP/TCP;unicast;interleaved=0-1

Server seems to reply:

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Received 147 new bytes of response data.
Received a complete SETUP response:
RTSP/1.0 461 Unsupported transport
Server: VLC/2.0.6
Date: Sun, 09 Jun 2013 12:56:43 GMT
Content-Length: 0
Cache-Control: no-cache
Cseq: 4

Client tries a new setup request but without defining the transport protocol.

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Sending request: SETUP rtsp://<ip>/trackID=1 RTSP/1.0
CSeq: 5
User-Agent: LibVLC/2.0.3 (LIVE555 Streaming Media v2012.05.17)
Transport: RTP/AVP;unicast;client_port=55544-55545

Server: "UDP in yo face !"

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Received 270 new bytes of response data.
Received a complete SETUP response:
RTSP/1.0 200 OK
Server: VLC/2.0.6
Date: Sun, 09 Jun 2013 12:56:43 GMT
Transport: RTP/AVP/UDP;unicast;client_port=55544-55545;server_port=50892-50893;ssrc=147F2398;mode=play
Session: e4406d5790f06a92;timeout=60
Content-Length: 0
Cache-Control: no-cache
Cseq: 5

Might be VLC not actually supporting TCP, while all the options are there. (Says "not implemented yet" at https://www.videolan.org/doc/streaming- ... /ch03.html) But there might still be a better way to fix the issue here.

Posted: **09 Jun 2013 18:13**

The VLC server-side supports neither RTP over TCP nor RTP interleaved in RTSP. This would require a complete rewrite of the RTSP server and guess what, nobody put the necessary investment in over 8 years since this limitation has been known.

Posted: **09 Jun 2013 20:06**

Ok. I understand. I thought it would work since the option seems to be there in the GUI.

Have you any idea how I would I go about trying to make sure vlc keeps streaming ? I can't have the HLS conversion stream die, this is a semi-automated system

Posted: **10 Jun 2013 17:46**

There is no such option in the GUI (and there would not be even if it was implemented, since it is negotiated automatically through RTSP).

The VideoLAN Forums

HLS streaming stops:"command 'quit' and I have no idea why !

HLS streaming stops:"command 'quit' and I have no idea why !

Re: HLS streaming stops:"command 'quit' and I have no idea w

Re: HLS streaming stops:"command 'quit' and I have no idea w

Re: HLS streaming stops:"command 'quit' and I have no idea w

Re: HLS streaming stops:"command 'quit' and I have no idea w

Re: HLS streaming stops:"command 'quit' and I have no idea w