Encoder HDMI CVBS untuk streaming langsung

What is a CVBS HDMI encoder for live streaming?

CVBS HDMI encoder for live streaming is a device that supports CVBS analog TV composite video input and HDMI 1080P high-definition video input; The board output is IP RJ45 and supports RTSP player and UDP player, which means it connects the board to the internet. Your video sources will become the stream and play on the internet.

FAQ

Q1: Apakah Anda Encoder HDMI CVBS untuk streaming langsung support MPEG-2 TS over UDP supported?

A1: iya nih. Our CVBS HDMI encoder for live streaming supports MPEG-2 TS over UDP.
https://ivcan.com/p/hdmi-to-ip-encoder-modulator-cvbs-h-265-h-264-encoding-board-pcba-ethernet-lan-http-rtsp-udp-onvif-tcp-ip/

Q2: Alih-alih RSTP, I need an MPEG-2 Transport stream

A2: Do you need DVB-t RF out, which supports the Transport Stream?

Q3: Tidak, just CVBS input and Ethernet out, Ethernet protocol: H.264. For compression, MPEG-2 TS on UDP broadcast, I need a quote for 5 qty and a complete datasheet.

A3: Vcan1746 can output the TS stream over UDP, but the output TS stream is a non-standard Transport Stream that we have modified, which needs to be interpreted by our decoder board or player.

P5: What should I do if I can’t ping the encoder board from my computer?

Directly connect the kabel UART dari papan penyandian ke komputer, and use the serial port debugging assistant to send the ATGIP_ command. Get IP address command Video Operasi di Youtube

1. I can get the sub-stream quickly, but the mainstream needs to get it after reboot. What should I do?

Saya telah menguji pembuat enkode Anda beberapa kali dengan sistem kami. Ini berfungsi dengan baik secara keseluruhan.
But we have one big issue to validate its usage :
Whenever we turn on the system camera and the encoder at the same time, we cannot read the “mainstream”, we can only read the “sub-stream”.
We have to “Reboot” the encoder via the web interface to make it work: after the reboot, we can directly read the mainstream.
We tried with both VLC and Gstreamer.
Apa yang bisa kami coba agar kedua aliran dapat dibaca saat startup?

iVcan reply: Menurut pendapat teknisi kami, ini bisa jadi masalah pengenalan kamera atau masalah penggunaan pelanggan.

Saya curiga kartu board tersebut tidak mengenali kamera HDMI pelanggan.
Ini mudah untuk diverifikasi (jika Anda tidak dapat mengakses sub-aliran, akan sulit untuk memverifikasinya).
Masuk ke server web papan encoder dan Anda dapat melihat status pengenalan kamera di halaman video.


Halaman video hanya akan menampilkan status pengenalan satu kamera. Jika kamera HDMI dan AV terhubung dan dikenali secara bersamaan, halaman video akan menampilkan status pengenalan kamera HDMI (seperti 1080p60):
Selama kamera HDMI dapat mengenalinya secara normal, Mainstream dapat diakses secara normal.
Jika kamera HDMI tidak dikenali secara normal, silakan periksa kabel HDMI dan nyalakan kembali papan (perhatikan bahwa ini adalah siklus daya, bukan restart perangkat lunak pada halaman web)

Sebagai tambahan, the board uses a random Mac address, so the Mac address will change every time we restart it.
For devices with an ARP cache (such as a PC), after restarting, it will be temporary (a few seconds) unable to access the board from the network. , We cannot access it until the arp request is re-initiated after timeout (the performance is that the coding board cannot be pinged for several seconds after restarting)
Karena itu, I guess another possibility is that when the customer accesses the mainstream, it cannot be accessed due to the above reasons. Then when the customer accesses sub-stream, the arp cache refreshes and the customer can access it, but the customer does not revisit the main-stream.

Whenever we turn on the system camera and the encoder at the same time, we cannot read the “Mainstream”, we can only read the “subStream”.

Judging from your description here, it seems that your camera is started after our encoding board. Please start your camera first, and then power on and start our encoding board to try it. Maybe it is not powered on at the same time. The powered-on order also matters. Sebagai contoh, your camera startup needs 10 detik, but our encoder board startup needs only 5 detik.

Because I am not sure whether your camera is very slow to initialize after power-on.
Because our encoder board starts very quickly, it may be that the camera has not been initialized after it started our encoder board, which may lead to some unexpected problems. This can also explain why “We have to “Reboot” the encoder via the web interface to make it work: after the reboot we can directly read the mainStream.”, because when your web page restarts the encoder board, the camera has already been initialized.

Karena itu, the final suggestions are as follows (I tried my best to list everything that came to mind and let you test them separately);

  1. Look at the video page of the web server and confirm whether the HDMI camera is recognized normally (you can send a screenshot to us). As long as the camera is recognized normally, Mainstream can be accessed;
  2. It is recommended that you ping the coding board under cmd first, and then access mainStream and subStream under vlc to avoid mistakenly thinking that Mainstream cannot be accessed due to random mac issues.
  3. Let you start your camera first (for a few seconds), then power on and start our encoding board to try (lihat alasan yang dijelaskan di atas)
  4. Ikuti operasi awal Anda yaitu "nyalakan kamera sistem dan pembuat enkode secara bersamaan". When the problem “we are unable to read the “mainStream”, kita hanya bisa membaca “subStream”.” direproduksi, Jangan memulai ulang papan pengkodean melalui halaman web, tapi tukar kabel HDMI antara kamera Anda dan papan pengkodean. Saya pikir ini hanya operasi hot-swap (karena saya menduga itu adalah masalah deteksi plug-in yang menyebabkan kamera tidak terhubung ke papan pengkodean. Kirim sinyal HDMI)

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