Tvheadend

From where come from stream?
DVB, IPTV or VOD?

IPTV re-stream using this simple flask logic...

from flask import Flask, Response, redirect
import requests

app = Flask(__name__)

@app.route("/play", methods=["GET"])
def play():

    link = "https://a7b60a6853d843dd9105acfa8d6e74c7.mediatailor.us-east-1.amazonaws.com/v1/manifest/44f73ba4d03e9607dcd9bebdcb8494d86964f1d8/Samsung-gb_BeanoTV/dde16029-6152-4e66-a220-5974c536644e/2.m3u8" 

    def stream():
        try:
            with requests.get(link, stream=True) as response:
                for chunk in response.iter_content(chunk_size=1024):
                    yield chunk
        except:
            print("DONE")

    #return redirect(link)
    return Response(stream())

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=8001, debug=True)

TVH is the only client I have tried that has trouble playing the streams.
If I enable AV library, then it will work. But the AV lib is slow and buggy so I don't want to use it.
The original streams are 100% compatible with TVH. I know this because if I return a redirect instead of using the requests library, then it plays them.
I cant use redirects though because I need to keep track of which streams are being viewed.

EDIT: Added a real link so that you can try it yourself. The stream will work if its returned as a redirect, but not if its streamed.

Try with latest master

Hello thanks for the reply.
I just built the latest master using the linuxserver.io docker image and it still doesn't work with the example given above.

EDIT: I think that link I gave is a bad example. You need a continuous stream to test but I cant give you mine.

Check using tcpdump or Wireshark to figure out if the client closes the connection for some reason as the log indicates. You can also use wget for example to "download" the stream from Tvheadend, it's very helpful when debugging as it's very verbose compared to VLC for example.

FFPROBE can be also usefull.

No it can't as it doesn't show information about the HTTP protocol and aborts playback if no valid video data is received....

If I use wget on the service (http://10.0.1.200:9981/play/ticket/stream/service/7f91e773910e858d58d0e640e4fc0e70?title=Service01%20%2F%20FFmpeg), wget downloads a few "K", then just sits there waiting for more. It never comes though because TVH has already disconnected from my flask app.

Here is the log:

2022-10-27 17:30:06.267 service: 12: Test/http://10.0.1.7:8001/play/Service01 si 0x7f7a2a892850  weight 0 prio 11 error 0 (OK)
2022-10-27 17:30:06.267 service: 11: Test/http://10.0.1.7:8001/play/Service01 si 0x7f7a313a7790  weight 0 prio 11 error 0 (OK)
2022-10-27 17:30:06.267 service: 10: Test/http://10.0.1.7:8001/play/Service01 si 0x7f7a2855b790  weight 0 prio 11 error 0 (OK)
2022-10-27 17:30:06.267 service: 9: Test/http://10.0.1.7:8001/play/Service01 si 0x7f7a2bc3c790  weight 0 prio 11 error 0 (OK)
2022-10-27 17:30:06.267 service: 8: Test/http://10.0.1.7:8001/play/Service01 si 0x7f7a2bc8d3d0  weight 0 prio 11 error 0 (OK)
2022-10-27 17:30:06.267 service: 7: Test/http://10.0.1.7:8001/play/Service01 si 0x7f7a2bdc2a90  weight 0 prio 11 error 0 (OK)
2022-10-27 17:30:06.267 service: 6: Test/http://10.0.1.7:8001/play/Service01 si 0x7f7a238f9550  weight 0 prio 11 error 0 (OK)
2022-10-27 17:30:06.267 service: 5: Test/http://10.0.1.7:8001/play/Service01 si 0x7f7a3a660cd0  weight 0 prio 11 error 0 (OK)
2022-10-27 17:30:06.267 service: 4: Test/http://10.0.1.7:8001/play/Service01 si 0x7f7a3a660b50  weight 0 prio 11 error 0 (OK)
2022-10-27 17:30:06.267 service: 3: Test/http://10.0.1.7:8001/play/Service01 si 0x7f7a3a660910  weight 0 prio 11 error 0 (OK)
2022-10-27 17:30:06.267 service: 2: Test/http://10.0.1.7:8001/play/Service01 si 0x7f7a3a660790  weight 0 prio 11 error 0 (OK)
2022-10-27 17:30:06.267 service: 1: Test/http://10.0.1.7:8001/play/Service01 si 0x7f7a3a6606d0  weight 0 prio 11 error 0 (OK)
2022-10-27 17:30:06.267 mpegts: http://10.0.1.7:8001/play in Test - tuning on IPTV #1
2022-10-27 17:30:06.268 mpegts: http://10.0.1.7:8001/play in Test - open PID 0000 (0) [20/0x7f7a39894020]
2022-10-27 17:30:06.268 mpegts: http://10.0.1.7:8001/play in Test - open PID 0001 (1) [16/0x7f7a39896aa0]
2022-10-27 17:30:06.268 mpegts: http://10.0.1.7:8001/play in Test - open PID 0010 (16) [20/0x7f7a41963570]
2022-10-27 17:30:06.268 mpegts: http://10.0.1.7:8001/play in Test - open PID 0011 (17) [20/0x7f7a41964a90]
2022-10-27 17:30:06.268 mpegts: http://10.0.1.7:8001/play in Test - open PID 0011 (17) [16/0x7f7a42d02ab0]
2022-10-27 17:30:06.268 mpegts: http://10.0.1.7:8001/play in Test - started
2022-10-27 17:30:06.268 tbl-eit: uk_freesat: grab started
2022-10-27 17:30:06.268 tbl-eit: uk_freesat_eit: grab started
2022-10-27 17:30:06.268 tbl-eit: uk_freeview: grab started
2022-10-27 17:30:06.268 tbl-eit: nz_freeview2: grab started
2022-10-27 17:30:06.268 tbl-eit: nz_freeview1: grab started
2022-10-27 17:30:06.268 tbl-eit: viasat_baltic: grab started
2022-10-27 17:30:06.268 tbl-eit: Bulsatcom_39E: grab started
2022-10-27 17:30:06.268 tbl-eit: uk_cable_virgin: grab started
2022-10-27 17:30:06.268 tbl-eit: eit: grab started
2022-10-27 17:30:06.268 mpegts: http://10.0.1.7:8001/play in Test - open PID 1FFB (8187) [20/0x7f7a3a8ae020]
2022-10-27 17:30:06.268 tbl-eit: mgt: installed table handlers
2022-10-27 17:30:06.268 psip: psip: grab started
2022-10-27 17:30:06.268 mpegts: http://10.0.1.7:8001/play in Test - open PID 1000 (4096) [8/0x7f7a236f2f10]
2022-10-27 17:30:06.268 mpegts: http://10.0.1.7:8001/play in Test - open PID 0100 (256) [8/0x7f7a236f2f10]
2022-10-27 17:30:06.268 mpegts: http://10.0.1.7:8001/play in Test - open PID 0101 (257) [8/0x7f7a236f2f10]
2022-10-27 17:30:06.268 mpegts: http://10.0.1.7:8001/play in Test - open PID 1000 (4096) [16/0x7f7a3a8af560]
2022-10-27 17:30:06.268 subscription: 004D: "HTTP" subscribing to service "Test/http://10.0.1.7:8001/play/Service01", weight: 100, adapter: "IPTV #1", network: "Test", mux: "http://10.0.1.7:8001/play", provider: "FFmpeg", profile="pass", hostname="10.0.1.7", client="Wget/1.20.3 (linux-gnu)" 
2022-10-27 17:30:07.907 service: Test/http://10.0.1.7:8001/play/Service01: Status changed to [Hardware input] 
2022-10-27 17:30:07.907 service: Test/http://10.0.1.7:8001/play/Service01: Status changed to [Hardware input] [Input on service] 
2022-10-27 17:30:07.907 service: Test/http://10.0.1.7:8001/play/Service01: Status changed to [Hardware input] [Input on service] [Demuxed packets] 
2022-10-27 17:30:07.907 service: Test/http://10.0.1.7:8001/play/Service01: Status changed to [Hardware input] [Input on service] [Demuxed packets] [Reassembled packets] 
2022-10-27 17:30:07.907 webui: Start streaming /play/ticket/stream/service/7f91e773910e858d58d0e640e4fc0e70?title=Service01%20%2F%20FFmpeg
2022-10-27 17:30:07.907 tbl-base: sdt: onid FF01 (65281) tsid 0001 (1)
2022-10-27 17:30:07.907 tbl-base: sdt: mux http://10.0.1.7:8001/play in Test
2022-10-27 17:30:07.907 tbl-base: sdt:  sid 0001 (1) running 4 free_ca 0
2022-10-27 17:30:07.907 tbl-base: pat: 0x7f7a23e3d980: tsid 0001 (1)
2022-10-27 17:30:07.907 tbl-base: pat:  sid 0001 (1) on pid 1000 (4096)
2022-10-27 17:30:07.907 tbl-base: pmt: sid 0001 (1)
2022-10-27 17:30:07.907 tbl-base: pmt:  pcr_pid 0100
2022-10-27 17:30:07.907 tbl-base: pmt:  pid 0100 estype 27
2022-10-27 17:30:07.907 tbl-base: pmt:    type H264 position 0
2022-10-27 17:30:07.907 tbl-base: pmt:  pid 0101 estype 15
2022-10-27 17:30:07.907 tbl-base: pmt:    type AAC position 0
2022-10-27 17:30:38.893 webui: Stop streaming /play/ticket/stream/service/7f91e773910e858d58d0e640e4fc0e70?title=Service01%20%2F%20FFmpeg, client hung up
2022-10-27 17:30:38.893 subscription: 004D: "HTTP" unsubscribing, hostname="10.0.1.7", client="Wget/1.20.3 (linux-gnu)" 
2022-10-27 17:30:38.893 mpegts: http://10.0.1.7:8001/play in Test - close PID 1000 (4096) [16/0x7f7a3a8af560]
2022-10-27 17:30:38.893 mpegts: http://10.0.1.7:8001/play in Test - close PID 1000 (4096) [8/0x7f7a236f2f10]
2022-10-27 17:30:38.893 mpegts: http://10.0.1.7:8001/play in Test - close PID 0100 (256) [8/0x7f7a236f2f10]
2022-10-27 17:30:38.893 mpegts: http://10.0.1.7:8001/play in Test - close PID 0101 (257) [8/0x7f7a236f2f10]
2022-10-27 17:30:38.893 mpegts: http://10.0.1.7:8001/play in Test - stopping mux
2022-10-27 17:30:38.893 mpegts: http://10.0.1.7:8001/play in Test - close PID 0000 (0) [20/0x7f7a39894020]
2022-10-27 17:30:38.893 mpegts: http://10.0.1.7:8001/play in Test - close PID 0001 (1) [16/0x7f7a39896aa0]
2022-10-27 17:30:38.893 mpegts: http://10.0.1.7:8001/play in Test - close PID 0010 (16) [20/0x7f7a41963570]
2022-10-27 17:30:38.893 mpegts: http://10.0.1.7:8001/play in Test - close PID 0011 (17) [20/0x7f7a41964a90]
2022-10-27 17:30:38.893 mpegts: http://10.0.1.7:8001/play in Test - close PID 0011 (17) [16/0x7f7a42d02ab0]
2022-10-27 17:30:38.893 mpegts: http://10.0.1.7:8001/play in Test - close PID 1FFB (8187) [20/0x7f7a3a8ae020]
2022-10-27 17:30:38.894 epggrab: grab done for http://10.0.1.7:8001/play in Test (stolen)
2022-10-27 17:30:38.894 psip: Calling _psip_stop

I can see that it is TVH that disconnects because the python generator is exited by flask when a client disconnects. Using prints I can see that it happens immediately after starting.

If I enable the av library in TVH, then the stream will play... But I shouldn't have to enable the av library because the stream is already compatible... I'm just restreaming it.
The fact I am getting a few K with wget and sometimes I see a single frame or two in VLC also suggests the stream is compatible. It just decides to disconnect right away for whatever reason.

Then you need to investigate why it disconnects if you're sure that it's Tvheadend that does the disconnection.

Perhaps I am wrong, but that's what I am here for. I have been tinkering with this for months.
I was hoping I could get TVH to somehow tell me why it closes. And why the av lib doesn't close.
It could well be something to do with my app... perhaps it is out of spec somehow?
Considering TVH is the only "player" I have tried that doesn't like my streams, I'd like to think it was an issue with TVH.
I've tried web browsers, VLC, FFMpeg, Plex... Only TVH gives me problems.

All active developers that know the code well have left. You will have to figure it out yourself. Go through the code, figure out the code path it takes and so on

Right, that's beyond my skill level unfortunately.
Good news though, I was able to get it working by switching from the built-in flask server to waitress. I wish I tried this a long time ago!
I still think there is a "problem" with TVH... its too fussy compared to other software I have tried. Maybe its super strict with standards?

Tvheadend doesn't really use libraries like for example curl to receive a stream, instead there is a HTTP client implemented which is very strict and doesn't really allow protocol violations and sometimes doesn't even allow everything the protocol specifies/violates the protocol itself. PRs with improvements are welcome