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Nimble streamer returns "Not found" when accessing manifest.mpd

Maxim Musayev 2016-01-20 08:42:17 UTC in Nimble Streamer

Hello. I'm trying to make RTSP to MPEG-DASH live streaming but Nimble streamer thinks 15-30 seconds and returns "Not found" when anyone accessing manifest.mpd.

Debug log:

[2016-01-20 10:30:38 P24861-T24865] [work] V: client s=29 request:
GET /webcams/channels/0102/manifest.mpd?timestamp=1453278668012 HTTP/1.1
Host: 192.168.33.94:8081
Connection: keep-alive
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.86 Safari/537.36
X-Requested-With: ShockwaveFlash/20.0.0.267
Accept: */*
DNT: 1
Accept-Encoding: gzip, deflate, sdch
Accept-Language: uk,ru;q=0.8,en;q=0.6,en-US;q=0.4

[2016-01-20 10:30:38 P24861-T24865] [work] D: processing request url='/webcams/channels/0102/manifest.mpd?timestamp=1453278668012'
[2016-01-20 10:30:38 P24861-T24865] [work] V: registered session=43 type=7 client='192.168.33.152' host='192.168.33.94:8081' url='/webcams/channels/0102/manifest.mpd?timestamp=1453278668012'
[2016-01-20 10:30:38 P24861-T24865] [work] D: ProcessLiveStreamRequest origin_url='/webcams/channels/0102/manifest.mpd?timestamp=1453278668012'
[2016-01-20 10:30:38 P24861-T24865] [work] D: WorkerThread::AddStreamObserver stream='webcams/channels/0102' session=0x7fb3d8008930
[2016-01-20 10:30:38 P24861-T24865] [work] D: epoll_ctl epfd=7 EPOLL_CTL_MOD OK for fd=29 flags=0x2000

...cut...

[2016-01-20 10:31:07 P24861-T24865] [work] V: client s=29 response:
HTTP/1.1 404 Not Found
Date: Wed, 20 Jan 2016 08:31:07 GMT
Server: Nimble/2.13.0-6
Content-Length: 72
Connection: close
Content-Type: text/html
Access-Control-Allow-Origin: *
Access-Control-Allow-Headers: Range

<html><head><title>Not found</title></head><body>Not found</body></html>
[2016-01-20 10:31:07 P24861-T24865] [work] D: epoll_ctl epfd=7 EPOLL_CTL_MOD OK for fd=29 flags=0x2004
[2016-01-20 10:31:07 P24861-T24865] [work] D: 221 of 221 bytes (header) written to client s=29
[2016-01-20 10:31:07 P24861-T24865] [work] D: ClientSession::ProcessEvent p=0x7fb3d8008930 (state=3 s=29 ev=0x4 ssl_origin=0)
[2016-01-20 10:31:07 P24861-T24865] [work] D: 72 of 72 bytes (body) written to client s=29
[2016-01-20 10:31:07 P24861-T24865] [work] D: shutdown client s=29

Max 2016-01-20 11:29:28 UTC 

Hello Maxim,

It seems Nimble fails to fetch RTSP stream, as I understand HLS should not work either. Please send stream URL to help@wmspanel.com and we'll check the details.

Thank you.

Maxim Musayev 2016-01-20 12:03:40 UTC 

Thanks for fast reply.
No, RTSP fetched normally and HLS is working (at least I can see single chunk in JWPlayer on test window, and then stream stops until I push pause/play again)
HLS: http://176.98.77.100:8081/webcams/stream_01/playlist.m3u8 (works as described)
DASH: http://176.98.77.100:8081/webcams/stream_01/manifest.mpd (404 error. Sometimes instant. sometimes after pause)

Maxim Musayev 2016-01-20 12:53:11 UTC 

I have tried to investigate the HLS streaming issue and gathered some info:

- client fetches primary playlist GET http://176.98.77.100:8081/webcams/stream_01/playlist.m3u8
- reads it and fetches chunks playlist
GET ...chunks.m3u8?nimblesessionid=87
- reads it and fetches video chunk
GET ...l_439_150_0.ts?nimblesessionid=87
[ playing video: OK ]
- client re-fetches chunks playlist
GET ...chunks.m3u8?nimblesessionid=87
- and finds there the same video url l_439_150_0.ts
[ playback stops as stream looping is not expected ]
- client re-fetches chunks playlist again in hope to get fresh video url, but gets the same again and again.
- eventually client gets 404 error on url chunks.m3u8

- when client do pause/play, new playlist.m3u8 is fetched. 1 chunk is played and issue repeats.

Had I configured something wrong?

Thanks for help

Maxim Musayev 2016-01-25 17:48:58 UTC 

Latest release (2.14.0-1) fixed my issue.

Before this release I had been using ffmpeg before nimble streamer to convert rtsp->rtmp. Now ffmpeg is not necessary as I can handle rtsp stream as nimble live stream input without any issues.

Thanks for help!

Yury Udovichenko 2016-01-25 22:30:20 UTC 

Hi Maxim,

Thanks for the feedback! Let us know of any further concerns and feel free to send your questions to https://wmspanel.com/help

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