RTMP publishing fails with Dahua cameras #769

daveisfera · 2022-01-13T04:12:40Z

Which version are you using?

v0.17.13

Which operating system are you using?

macOS amd64 Docker

Describe the issue

Sending an RTMP stream from a camera with no audio and it's failing with this error:

2022/01/13 03:57:37 INF [RTMP] [conn 172.17.0.1:64268] closed (stream doesn't contain tracks with supported codecs (H264 or AAC))

Describe how to replicate the issue

start the server
publish with a camera that supports RTMP but no audio
observer above error

Did you attach a network dump?

yes (made the extension .log because it was on the list of approved extension and seemed like the "best" option)

no_audio.log

The text was updated successfully, but these errors were encountered:

aler9 · 2022-01-25T14:41:50Z

Hello, the problem here is that the camera sends a metadata packet that doesn't contain the video codec ID, therefore the server doesn't detect its video track. What is the model of the camera?

daveisfera · 2022-01-27T16:50:48Z

It's been a while since I ran this test, but I'm pretty sure it was a Dahua camera

aler9 · 2022-01-27T21:51:15Z

This is linked to #386 - the RTMP metadata parser must be improved to support these non-standard clients.

…#386) (#769)

aler9 · 2022-02-12T16:52:47Z

I developed a patch to fix this issue; please try this nightly release and let me know if it works:
[link removed]

daveisfera · 2022-02-15T02:11:19Z

Got the Dahua camera back out and it's now outputting the following:

2022/02/15 02:08:29 INF [RTMP] [conn 172.17.0.1:61324] opened
2022/02/15 02:08:29 INF [RTMP] [conn 172.17.0.1:61324] closed (invalid metadata)

aler9 · 2022-02-15T09:11:50Z

Hello, data from your network dump was copy-pasted into unit tests, therefore something must have changed. Please provided another network dump.

daveisfera · 2022-03-23T04:36:14Z

dahua.log

I've attached a capture from the Dahua camera that is showing this issue when connecting.

aler9 · 2022-04-18T15:21:36Z

Thanks for the pcap, i've developed another fix but this time i'm not merging it into the main branch until we're sure that it works.

Please try the attached release (or alternatively the "dahua" branch) and let me know if it works:
[link removed]

daveisfera · 2022-04-20T20:16:32Z

This is the output when running with this commit:

2022/04/20 20:15:25 INF [RTMP] [conn 172.17.0.1:56478] opened
2022/04/20 20:15:26 INF [RTMP] [conn 172.17.0.1:56478] closed (EOF)

aler9 · 2022-04-21T17:10:52Z

Hi, EOF means that the camera closed the connection.

Are you sure that the camera is publishing something? It switched from sending this metadata (no_audio.log):

flvio.AMFMap{
    {
        K: "width",
        V: float64(2688),
    },
    {
        K: "height",
        V: float64(1520),
    },
    {
        K: "framerate",
        V: float64(0o25),
    },
}

to sending this metadata (dahua.log):

null

That's why i'm asking.

Furthermore, logs with logLevel: debug and / or network dumps can be useful.

I know that this is taking time but there is no way to fix communication with a device unless... owning the device.

daveisfera · 2022-05-04T00:18:36Z

The camera streams video when I connect it to an RTMP input in MediaLive, so it can send video and I believe it is doing so (or at least trying to do so) when I point it as rtsp-simple-server

aler9 · 2022-06-11T09:44:16Z

Hello, the RTMP metadata parsing mechanism was updated once again to support DJI drones - please try this nightly release, it may solve this issue too:
#928 (comment)

daveisfera · 2022-06-13T20:50:59Z

Still disconnects with this output:

2022/06/13 20:49:56 INF [RTMP] [conn 172.17.0.1:64268] opened
2022/06/13 20:49:56 INF [RTMP] [conn 172.17.0.1:64268] closed (invalid metadata)

aler9 · 2022-06-23T11:22:29Z

please try again with this new release:

rtsp-simple-server_v0.19.1-18-gf41e595_darwin_amd64.tar.gz
rtsp-simple-server_v0.19.1-18-gf41e595_linux_amd64.tar.gz
rtsp-simple-server_v0.19.1-18-gf41e595_linux_arm64v8.tar.gz
rtsp-simple-server_v0.19.1-18-gf41e595_linux_armv6.tar.gz
rtsp-simple-server_v0.19.1-18-gf41e595_linux_armv7.tar.gz
rtsp-simple-server_v0.19.1-18-gf41e595_windows_amd64.zip

daveisfera · 2022-06-23T19:01:31Z

I tried that release and the most recent commits, but still have the same error.

aler9 · 2022-06-23T20:31:15Z

what's the error reported in the logs when using the release linked in the previous post? null metadatas should be supported, so the error message shouldn't be "invalid metadata".

daveisfera · 2022-06-24T03:37:48Z

It's the same output as before:

2022/06/24 03:34:39 INF [RTMP] [conn 172.17.0.1:62286] opened
2022/06/24 03:34:39 INF [RTMP] [conn 172.17.0.1:62286] closed (invalid metadata)

daveisfera · 2022-06-24T17:42:00Z

I just pulled the latest changes and tried again and this is the line that's returning the error:
https://github.com/aler9/rtsp-simple-server/blob/fb5aa7bbf23f89b3754157b4b8f3aa3788d7ae20/internal/rtmp/conn.go#L129

aler9 · 2022-07-02T20:17:08Z

Hello, please be aware that i'm posting releases compiled from the dahua branch, therefore the right line is this one:

https://github.com/aler9/rtsp-simple-server/blob/680b52508e0631fedb53411dc3dd82103531373c/internal/rtmp/conn.go#L136

Anyway i don't have enough data to solve the issue. If i had the camera this would be solved in 5 mins, but since this is not the case, i have to rely on your dumps, but i already inserted the content of your dumps into unit tests, therefore i don't know what else to do. If you still want to solve this issue, please provide another network dump.

daveisfera · 2022-07-03T23:51:01Z

Oh sorry, I didn't realize that it was a branch. I just saw the version number in the builds and assumed it was from there. I did a build from the branch and this is now the output that I see:

2022/07/03 17:22:47 INF [RTMP] [conn 172.17.0.1:58042] opened
2022/07/03 17:22:48 INF [RTMP] [conn 172.17.0.1:58042] closed (EOF)

aler9 · 2022-07-04T05:19:11Z

After the camera sends the metadata with "null" payload, it closes the connection to the server with no reason. I don't know what else to do.

daveisfera · 2022-07-05T15:17:02Z

Thanks for the effort. I'll take a look at the branch and see if I can get it working.

aler9 · 2022-07-05T16:54:50Z

If you're a little familiar with Golang, in my opinion you have all the means to get this issue fixed. You can then send a pull request, and it will be merged.

jquiroga-arg · 2023-06-27T11:01:17Z

Hi @aler9 thanks for the effort, we really appreciate your work... Please any one can update status of Dahua Rtmp push to RTSPSimpleServer? I can help maybe with YouTube handshake network dump on a working escenario.

rudyryk · 2023-08-31T13:10:26Z

I'm also having issues with Dahua camera and it's 100% reproducuble. What info would be useful?

I've enabled a debug logging, but it's not very detailed:

2023/08/31 12:57:39 INF MediaMTX v1.0.1
2023/08/31 12:57:39 DEB path manager created
2023/08/31 12:57:39 INF [RTSP] listener opened on :8554 (TCP), :8000 (UDP/RTP), :8001 (UDP/RTCP)
2023/08/31 12:57:39 INF [RTMP] listener opened on :1935
2023/08/31 12:57:39 INF [SRT] listener opened on :8890 (UDP)
2023/08/31 12:57:39 INF [API] listener opened on 0.0.0.0:9997
2023/08/31 13:00:47 DEB [API] [conn 172.20.0.1:59918] GET /v2/paths/list
2023/08/31 13:00:54 INF [RTMP] [conn 172.10.11.51:38186] opened
2023/08/31 13:00:54 DEB [path rtmp/yOp8uJbHcfrzTtV7tbS98M7J6O0efivy] created
2023/08/31 13:00:54 INF [RTMP] [conn 172.10.11.51:38186] is publishing to path 'rtmp/yOp8uJbHcfrzTtV7tbS98M7J6O0efivy', 1 track (MPEG-4 Audio)
2023/08/31 13:00:58 DEB [path rtmp/yOp8uJbHcfrzTtV7tbS98M7J6O0efivy] destroyed (not in use)
2023/08/31 13:00:58 INF [RTMP] [conn 172.10.11.51:38186] closed (received a video packet, but track is not set up)
2023/08/31 13:01:03 INF [RTMP] [conn 172.10.11.51:38190] opened
2023/08/31 13:01:03 DEB [path rtmp/yOp8uJbHcfrzTtV7tbS98M7J6O0efivy] created
2023/08/31 13:01:04 DEB [path rtmp/yOp8uJbHcfrzTtV7tbS98M7J6O0efivy] destroyed (not in use)
2023/08/31 13:01:04 INF [RTMP] [conn 172.10.11.51:38190] closed (unexpected video packet)
2023/08/31 13:01:09 INF [RTMP] [conn 172.10.11.51:38192] opened
2023/08/31 13:01:09 DEB [path rtmp/yOp8uJbHcfrzTtV7tbS98M7J6O0efivy] created
2023/08/31 13:01:10 INF [RTMP] [conn 172.10.11.51:38192] is publishing to path 'rtmp/yOp8uJbHcfrzTtV7tbS98M7J6O0efivy', 1 track (MPEG-4 Audio)
2023/08/31 13:01:11 DEB [path rtmp/yOp8uJbHcfrzTtV7tbS98M7J6O0efivy] destroyed (not in use)
2023/08/31 13:01:11 INF [RTMP] [conn 172.10.11.51:38192] closed (received a video packet, but track is not set up)
2023/08/31 13:01:16 INF [RTMP] [conn 172.10.11.51:38196] opened
2023/08/31 13:01:16 DEB [path rtmp/yOp8uJbHcfrzTtV7tbS98M7J6O0efivy] created
2023/08/31 13:01:17 INF [RTMP] [conn 172.10.11.51:38196] is publishing to path 'rtmp/yOp8uJbHcfrzTtV7tbS98M7J6O0efivy', 1 track (MPEG-4 Audio)
2023/08/31 13:01:20 DEB [path rtmp/yOp8uJbHcfrzTtV7tbS98M7J6O0efivy] destroyed (not in use)
2023/08/31 13:01:20 INF [RTMP] [conn 172.10.11.51:38196] closed (received a video packet, but track is not set up)
2023/08/31 13:01:25 INF [RTMP] [conn 172.10.11.51:38198] opened
2023/08/31 13:01:26 DEB [path rtmp/yOp8uJbHcfrzTtV7tbS98M7J6O0efivy] created
2023/08/31 13:01:26 DEB [path rtmp/yOp8uJbHcfrzTtV7tbS98M7J6O0efivy] destroyed (not in use)
2023/08/31 13:01:26 INF [RTMP] [conn 172.10.11.51:38198] closed (unexpected video packet)
...

aler9 · 2023-08-31T16:27:38Z

Hello @rudyryk , open a dedicated issue and provide a network dump of communication between the camera and the server. Instructions are shown when you open an issue.

This issue is too old and may be unrelated from your specific problen.

rudyryk · 2023-09-01T10:24:45Z

@aler9 I see, thank you! I'll try to push RTMP from my local Dahua camera. My guess is that it's some specific/incomplete protocol implementation on Dahua cameras. They work with Nginx-RTMP but when pushing to MediaMTX we get only audio track, while video track seems to be dropped by the server.

Hello, the problem here is that the camera sends a metadata packet that doesn't contain the video codec ID, therefore the server doesn't detect its video track. What is the model of the camera?

Looks like this is exactly what's happening.

Could you also please check email?

rudyryk · 2023-09-01T10:42:12Z

@aler9 Is it possible btw to get some dump or details on actually received data on the server side from MediaMTX? It's not always easy to get physical access to devices.

aler9 · 2023-09-01T12:04:50Z

@rudyryk yes, open an issue and attach a network dump. The network dump contains exactly what the server sees, and i will put it into a camera simulator in order to replicate the issue.

rudyryk · 2023-09-04T08:55:25Z

@aler9 Thanks, I've opened a separate issue #2289 with network dump attached.

aler9 · 2023-09-05T17:09:35Z

This is supposedly fixed with #2298, which was developed from data provided in #2289, which is very similar to the data attached here. If the bug persists, feel free to open another issue.

github-actions · 2024-03-10T15:40:53Z

This issue is being locked automatically because it has been closed for more than 6 months.
Please open a new issue in case you encounter a similar problem.

aler9 added the bug Something isn't working label Jan 25, 2022

aler9 added a commit that referenced this issue Feb 12, 2022

rtmp: support clients that publish with empty metadata or no metadata (…

983469a

…#386) (#769)

daveisfera mentioned this issue Feb 15, 2022

Publish Dockerfile #837

Closed

aler9 added a commit that referenced this issue Apr 18, 2022

fix RTMP publishing with Dahua cameras (#769)

56cb725

aler9 changed the title ~~RTMP push fails when no audio~~ RTMP publishing fails with Dahua cameras Apr 18, 2022

aler9 added a commit that referenced this issue Apr 20, 2022

fix RTMP publishing with Dahua cameras (#769)

770b340

aler9 added a commit that referenced this issue Jun 23, 2022

fix RTMP publishing with Dahua cameras (#769)

f41e595

aler9 added a commit that referenced this issue Jul 2, 2022

fix RTMP publishing with Dahua cameras (#769)

d5c5a43

aler9 added a commit that referenced this issue Jul 2, 2022

fix RTMP publishing with Dahua cameras (#769)

680b525

aler9 added the rtmp label Jan 22, 2023

aler9 added a commit that referenced this issue Sep 5, 2023

fix compatibility with RTMP Dahua cameras (#2289) (#769)

abae06b

aler9 mentioned this issue Sep 5, 2023

fix compatibility with RTMP Dahua cameras (#2289) (#769) #2298

Merged

aler9 added a commit that referenced this issue Sep 5, 2023

fix compatibility with RTMP Dahua cameras (#2289) (#769)

1d5994e

aler9 closed this as completed in #2298 Sep 5, 2023

aler9 added a commit that referenced this issue Sep 5, 2023

fix compatibility with RTMP Dahua cameras (#2289) (#769) (#2298)

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RTMP publishing fails with Dahua cameras #769

RTMP publishing fails with Dahua cameras #769

daveisfera commented Jan 13, 2022

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RTMP publishing fails with Dahua cameras #769

RTMP publishing fails with Dahua cameras #769

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daveisfera commented Jan 13, 2022

Which version are you using?

Which operating system are you using?

Describe the issue

Describe how to replicate the issue

Did you attach a network dump?

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