[Live-devel] [live555] doesn't call closeSockets after 404 File not found for rtsp over tcp

[Siddhant Agarwal]

Hi,

I am using ffmpeg to convert proxy rtsp (generated from
live555RTSPProxyServer with rtsp-over-tcp option) to hls using following
command:

ffmpeg -fflags nobuffer -rtsp_transport tcp -i rtsp://127.0.0.1:8554/proxy
> -vsync 0  -copyts  -vcodec copy  -movflags frag_keyframe+empty_moov
>  -strftime 1 -an  -hls_flags append_list  -f segment  -segment_list_flags
> live  -segment_time 10 -segment_format mpegts  -segment_list
> /tmp/proxy/index.m3u8  -segment_list_type m3u8  -segment_list_entry_prefix
> http://localhost/proxy/%s.ts


Although I'm using tcp as rtsp_transport option, sockstat of
live555RTSPProxyServer shows a large number of closed udp connections and
this is causing an increase in CPU Usage. Let me know if I'm missing
something here.

On Thu, Feb 27, 2020 at 11:49 AM Siddhant Agarwal <
siddhant.agarwal at staqu.com> wrote:

> I am using FFMPEG to convert Live RTP Url stream to HLS. Incase there is a
> 404 File not found on an RTSP Url, I create a new subprocess of ffmpeg
> which eventually creates a new socket connection. This has led to socket
> leakage and reached the ulimit.
>
> Thanks
>
> On Thu, Feb 27, 2020 at 11:10 AM Ross Finlayson <finlayson at live555.com>
> wrote:
>
>>
>>
>> > On Feb 27, 2020, at 6:17 PM, Siddhant Agarwal <
>> siddhant.agarwal at staqu.com> wrote:
>> >
>> > Hi,
>> >
>> > I am using Live555 with the "-t" flag.
>>
>> OK, by this I presume that you mean that you’re running
>> *live555ProxyServer* (not ‘LIVE555’) with the “-t” flag, and that the “404
>> File not found” is occurring on the ‘back-end’ stream.
>>
>> Yes, the “LIVE555 Proxy Server” keeps the RTSP connection open.  (This is
>> regardless of whether or not it was run with the “-t” flag.) This is
>> because it keeps trying to access the ‘back-end’ stream, in the hope that
>> it will become available in the future.  You can see this quite clearly if
>> you add the “-V” flag to live555ProxyServer.
>>
>> There is no bug here.
>>
>>
>> Ross Finlayson
>> Live Networks, Inc.
>> http://www.live555.com/
>>
>>
>> _______________________________________________
>> live-devel mailing list
>> live-devel at lists.live555.com
>> http://lists.live555.com/mailman/listinfo/live-devel
>>
>
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