Mpangilio wa kichezaji mkondo cha UDP cha itifaki ya mtiririko ya Kipokeaji cha COFDM Vcan1776-RX

UDP Stream player setting on the COFDM HDMI Wireless video transmitter and receiver

Kicheza mtiririko cha UDP ndicho suluhu bora zaidi kwa kisimbaji cha video cha analogi cha CVBS chenye hali ya chini kabisa. Kipokezi cha Video Isiyo na Waya cha COFDM Vcan1776-RX kinatumia kicheza RTSP.. Baadhi ya wateja wanahitaji kutumia itifaki ya UDP.

Anwani ya IP na nambari ya mlango inaweza kusanidiwa kwenye ukurasa wa wavuti, http://192.168.0.215 (default)

1. Baada ya kuboresha firmware, mwisho wa kupokea utarejesha vigezo chaguo-msingi vya kiwanda (mzunguko wa kituo: 320MHz, wireless kipimo data: 6MHz, anwani ya IP ya bandari ya mtandao: 192.168.0.215), wateja wanahitaji kurekebisha mzunguko wa kituo na kipimo data kupitia Chombo cha Bodi ya Usanidi wa Parameta, na Transmitter huokoa mara kwa mara.

2. Mteja hufikia seva ya wavuti ya mpokeaji kupitia ukurasa wa wavuti (HTTP://192.168.0.215), na hurekebisha anwani yake ya IP na mpangilio wa anwani ya IP ya mwisho wa Windows PC iliyounganishwa na kipokezi:

Kumbuka: Kati yao, IP ya ndani ni ip ya mpokeaji mwenyewe, na IP ya mbali ni ip ya mwisho ya Windows PC. Mteja anaweza kuisanidi kulingana na hali yake halisi. Kumbuka kuwa urekebishaji utaanza kutumika tu baada ya kuwasha tena kipokeaji.

Pakua kicheza UDP Mchezaji

3. Pakua kicheza UDP Mchezaji.
   • Mchezaji_v4.2_2020.6.6
   • https://drive.google.com/file/d/1ihzUhfnx2Wo3zLO8UAs1aUQeLswonJD-/view?usp=sharing
   • Mchezaji_v4.3_2022.10.22
   • https://drive.google.com/file/d/1PQc-LZ55qGnjeMsjkHYSloHfY3NEUsGH/view?usp=drive_link
   • Mchezaji_QT_V1.0 kwa Win10 au Win11
   • https://drive.google.com/file/d/1VAegQjd-PmIL2XbJf7K8dnujMxhoIuhd/view?usp=drive_link
4. Fungua kicheza Splayer kwenye Windows PC, bonyeza kitufe cha kuweka kwenye kona ya chini ya kulia, na ukurasa wa mipangilio utatokea:

Kumbuka:

1. Inaweza kuonekana kuwa nambari ya bandari ya Bandari imewekwa 1234, ambayo imesifiwa kwa bidii na programu ya utiririshaji ya UDP ya mpokeaji na haiwezi kurekebishwa;
2. Katika safu ya Decode, sanidi kulingana na sifa za sasa za mtiririko wa video, kama vile usanidi wa mtiririko wa video wa hali ya chini wa kusubiri wa H264 kama ilivyo hapo juu;

4. Baada ya kuweka na kubofya “Thibitisha” kitufe ili kuhifadhi vigezo, bofya kitufe cha kucheza kwenye kona ya chini kushoto. Baada ya Kompyuta ya Windows kupokea mkondo wa kusukuma wa UDP, itaamua na kucheza mara moja.

Mpangilio ulio hapo juu wa kicheza mtiririko wa UDP unafaa kwa muundo ulio hapa chini.

Inasaidiaje kicheza Linux VLC? Inacheza mtiririko wa kuchelewa kwa chini chini ya Linux?

swali: Sasa mkondo wa UDP hauchezi na kicheza VLC. Ninahitaji kucheza mtiririko huu wa UDP chini ya Linux na ninajaribu kuelewa maelezo ya mtiririko huu. Maandishi yoyote au funguo au vitu vingine?

Ninataka kutengeneza kichezaji changu mwenyewe chini ya Linux na ninataka kuelewa maelezo ya utiririshaji huu wa video wa UDP kutoka kwa kiboreshaji..

Ikiwa ni mtiririko wa kawaida wa video wa UDP, kisha uulize kwa nini haichezi na studio ya VLC au OBS.

jibu: Kwa mfano Vcan1726-RX, Tuna firmware mbili kwa hiari, Firmware ya kwanza ya kicheza RTSP inasaidia kicheza VLC, lakini wateja wengine walitaja kuwa ina muda mrefu wa kusubiri, kwa hivyo tulifanya firmware ya pili, matangazo ya UDP katika Splayer, ambayo inasaidia latency ya chini.

Mtiririko huu wa sauti na video wa UDP ndio umbizo letu maalum, kwa hivyo VLC haiwezi kuielezea. Ikiwa mteja wako anataka kufungua mchezaji wake mwenyewe (chini ya Linux), kwa sasa kuna chaguzi mbili:

1. Sasisha hadi ufikiaji chaguomsingi wa mtiririko wa RTSP (firmware ya kwanza kwa kicheza RTSP)
2. Tunatoa maktaba na taratibu zinazolingana za DEMUX (tunahitaji kuelewa mazingira ya Linux ya mteja ili kukusanya faili inayofaa ya maktaba)
3. Hii ni “maktaba na taratibu za DEMUX” iliyoandikwa na wahandisi wetu chini ya Ubuntu 14.04 64mfumo kidogo

Aina ya pili ni ngumu sana kwa wateja wa kawaida, na hatujui uwezo wa ukuzaji wa mchezaji wa mteja wako mwenyewe.

Kwa sababu baadhi ya wateja hukutana na tatizo la muda wa chini wa kusubiri kwenye kicheza Windows OS VLC, haijalishi tumejaribu vipi hapa, hatukupata tatizo hili. Wakati huo, ulitumia Windows kujaribu. Labda ikiwa ilibadilishwa kuwa Linux, hakutakuwa na shida ya utiririshaji wa RTSP. Tafadhali jaribu kujaribu sampuli ya Vcan1726 na toleo la kwanza la programu dhibiti kwenye Linux. Labda hii sio shida kwenye Linux OS.

swali: Unaweza kuunda picha ya kizimbani kwa programu hii? Ambayo bandari moja inatumika kwa mtiririko unaoingia, na mlango mwingine wa mtiririko unaotoka na kodeki inayotumika sana (h264)?

Splayer na UDP Stream Player ni nini?

SPlayer ni kicheza media kinachoauni umbizo mbalimbali za video, ikijumuisha utiririshaji wa UDP.

Utiririshaji wa UDP ni mbinu ya kutuma data ya video kupitia mtandao kwa kutumia Itifaki ya Datagram ya Mtumiaji (UDP), ambayo ni itifaki ya haraka na rahisi ambayo haitoi dhamana ya utoaji au utaratibu wa pakiti.

Utiririshaji wa UDP unaweza kutumika kwa utangazaji wa moja kwa moja wa video au uwasilishaji wa video wa hali ya chini, lakini pia inaweza kukumbwa na upotevu wa pakiti au ufisadi.

Kulingana na matokeo ya utaftaji wa wavuti, SPlayer inaweza kucheza mitiririko ya UDP kwa kutumia hatua zifuatazo:

• Fungua SPlayer na ubonyeze kwenye “Fungua URL” kitufe kwenye kona ya juu kulia.
• Ingiza URL ya mtiririko wa UDP katika umbizo la udp://@ip: bandari, ambapo ip ni anwani ya IP ya seva na mlango ni nambari ya mlango wa mkondo. Kwa mfano, udp://@224.0.0.1:1234.
• Bonyeza kwenye “sawa” kitufe na usubiri utiririshaji upakie.

Jinsi Splayer inavyofanya kazi vizuri kwa Win10?

swali: Hatuwezi kuanza Splayer 4.2 na 4.3 chini ya Windows 10. Unaweza kutupa toleo sahihi la Splayer kwa Windows 10 na 11?

4.2 huanza na kufunga kwa sasa. 4.3 huanza na ujumbe wa makosa.

Jina la programu yenye makosa: Splayer.exe, toleo: 1.0.0.1, muhuri wa wakati: 0x646d83e2
Jina la moduli yenye hitilafu: dvb_demux.dll, toleo: 1.0.0.1, muhuri wa wakati: 0x5fe5bdbf
Msimbo wa ubaguzi: 0xc0000005
Upungufu wa makosa: 0x0001484a
Kitambulisho cha mchakato wa hitilafu: 0x3888
Wakati wa kuanza maombi yenye makosa: 0x01da1164b89c78eb
Njia ya maombi yenye makosa: C:\WatumiajimsimamiziVipakuliwaSplayer_v4.3_2022.10.22Splayer.exe
Njia ya moduli yenye makosa: C:\WatumiajiadminVipakuliwaSplayer_v4.3_2022.10.22dvb_demux.dll
Kitambulisho cha Ripoti: 4af19407-045e-48e5-a0f7-86fc90c6b3d3
Jina kamili la kifurushi kinachoharibika:
Kitambulisho cha programu kinachohusiana na kifurushi kina hitilafu:

jibu: Tafadhali jaribu kutumia Splayer_qt_v1.0.zip yetu (103.5Mb).

maoni: Toleo jipya la SPlayer hufanya kazi vizuri kwenye tovuti ya tatizo na Win 10! Asante!

swali: We found the time delay increasing while playing the video from the Reciver by Splayer program (UDP stream).

If talk in detail – The receiver connects with an ethernet cable directly to the PC. The PC and receiver are in the same local network. When we start the Splayer the time delay is normal and the precise count shows us 330 msec, which is a little bit more than one from the HDMI output where we observed about 270 msec. It is good. But if we wait some minutes without any changes in the workplace we observe a continuous increase in the time delay which reaches 1-1,5 sec which is not acceptable in the customer application.
Yesterday I tested it myself on Win 10, and Win11 on different PCs with complex turn-OFF Win Brandmauer with Splayer qt (last version from you), and Splayer 4.3 (old version). I repeat this problem each time in any configuration.
Please help me to fix this problem. We need constant time delay in time from Splayer playing which could be not more than 350 msec.

jibu: Such a problem should not occur, because the player has no cache in low-latency mode, and the delay completely depends on the decoding ability of the PC. Engineers will set up the environment and test it next Monday.

Another point is to ask customers to check the refresh rate setting of their laptop monitor. Kwa mfano, if the camera inputs 1080p60, then the refresh rate of the customer’s laptop monitor must also be 60Hz. vinginevyo, the display will be too slow, which will also cause data congestion and introduce delays.

The Slayer player has a large delay, either the decoding is slow or the display is slow, it is all caused by the PC.

HDMI camera encoding HDMI receiver decoding, output to the display, and computer playback delay test of the Splayer player

We don’t find the problem you mentioned.

It can be seen that the current Splayer player screen and the receiver HDMI output are consistent, and the delay between them is very low.

Could you please ask the customer, what is the resolution and frame rate of the camera input? Assuming that the customer’s camera is 1080p60, you can also do the following two steps to further troubleshoot the problem:

1. Let the customer change the camera to a lower frame rate for testing, such as 1080p50/30;
2. You can set the encoding segment parameters to let it down-frame encoding. Kwa mfano, send the ATSO0,30_ command through the parameter port, and the encoding outputs 1080p30 for testing.