UDP kwj neeg uas ua ntawv teev rau kwj protocol ntawm COFDM Receiver Vcan1776-RX

UDP Stream neeg uas ua ntawv teev rau lub COFDM HDMI Wireless yees duab transmitter thiab receiver

UDP kwj neeg uas ua ntawv yog qhov zoo tshaj plaws rau qhov tsawg tshaj plaws latency CVBS analog yees duab encoder. COFDM Wireless yees duab Receiver Vcan176-RX default firmware txhawb RTSP neeg uas ua ntawv. Ib txhia neeg yuav tsum tau siv cov UDP protocol.

Qhov chaw nyob IP chaw nyob thiab chaw nres nkoj yuav configured rau lub webpage, http://192.168.0.215 (phem)

1. Tom qab upgrading qhov ruaj, Qhov tau txais kawg yuav restore lub Hoobkas default parameters (qhov chaw: 320MHz, wireless bandwidth: 6MHz, network chaw nres nkoj IP chaw nyob: 192.168.0.215), Cov neeg muas zaub yuav tsum hloov qhov chaw frequency thiab bandwidth los ntawm qhov Parameter Configuration Board Tool, thiab Transmitter txuag li qhia siv kuj.

2. Cov neeg muas zaub accesses lub receiver web server los ntawm cov nplooj ntawv web (HTTP://192.168.0.215), thiab modifies nws tus kheej IP chaw nyob thiab qhov chaw nyob ntawm lub QHOV rais PC xaus txuas nrog tus receiver:

Ceeb toom: Ntawm lawv, Lub zos IP yog tus receiver tus kheej ip, thiab tej thaj chaw deb IP yog qhov docking qhov rais PC kawg ip. Cov neeg muas zaub yuav configure nws raws li nws lub caijnyoog twg. Nco ntsoov tias cov modification yuav tsuas noj nyhuv tom qab restarting tus receiver.

Download tus UDP neeg uas ua ntawv Splayer

3. Download tus UDP neeg uas ua ntawv Splayer.
   • Splayer_v4.2_2020.6.6
   • https://drive.google.com/file/d/1ihzUhfnx2Wo3zLO8UAs1aUQeLswonJD-/view?usp=sharing
   • Splayer_v4.3_2022.10.22
   • https://drive.google.com/file/d/1PQc-LZ55qGnjeMsjkHYSloHfY3NEUsGH/view?usp=drive_link
   • Splayer_QT_V1.0 Rau Win10 los yog Win11
   • https://drive.google.com/file/d/1VAegQjd-PmIL2XbJf7K8dnujMxhoIuhd/view?usp=drive_link
4. Qhib lub Splayer neeg uas ua ntawv rau lub qhov rais PC, nyem lub pob khawm nyob rau sab xis ces kaum, thiab cov nplooj ntawv teev yuav pop:

Ceeb toom:

1. Nws yuav pom tias qhov chaw nres nkoj chaw nres nkoj yog teem caij mus 1234, Nws yog ib qho nyuaj-coded los ntawm cov UDP streaming qhov kev pab cuam ntawm tus receiver thiab tsis tau hloov;
2. Nyob rau hauv cov Decode column, configure raws li tus yees duab tam sim no stream zog, Xws li cov H264 tsawg-latency yees duab stream configuration li saum toj no;

4. Tom qab teem thiab nias lub “tshawb kom paub meej” khawm tseg cov parameters, nyem cov kev ua si khawm nyob rau sab laug kaum tsev. Tom qab lub qhov rais PC tau txais cov UDP thawb kwj dej, Nws yuav decode thiab ua si tam sim ntawd.

Saum UDP kwj neeg uas ua ntawv teev yog suitable rau cov qauv hauv qab no.

Li cas nws txhawb Linux VLC neeg uas ua ntawv? Ua si tsis qeeb kwj hauv Linux?

Lus nug: Tam sim no cov UDP kwj tsis ua si nrog cov neeg uas ua ntawv VLC. Kuv yuav tsum tau ua si no UDP kwj nyob linux thiab kuv sim to taub cov lus ntawm no kwj dej. Tej tsab ntawv los yog lwm yam tseem ceeb los yog lwm yam?

Kuv xav kom kuv tus kheej neeg uas ua ntawv nyob rau hauv Linux thiab kuv xav to taub cov lus ntawm no UDP yees duab kwj ntawm lub demodulator.

Yog hais tias nws yog ib tug mus UDP yees duab kwj, Ces lo lus nug vim li cas nws tsis ua si nrog VLC los yog OBS studio.

Teb: Rau cov qauv Vcan1726-RX, Peb muaj ob firmware rau kev xaiv, Tus thawj firmware rau lub RTSP neeg uas ua ntawv txhawb VLC neeg uas ua ntawv, Tab sis ib txhia neeg tau hais nws muaj ib tug latency ntev, Li ntawd, peb ua tus thib ob firmware, UDP tshaj tawm hauv xov ntawm lub Splayer, kev txhawb zog txo qis latency.

No UDP audio thiab yees duab kwj yog peb cov kev lis kev cai, Li ntawd, VLC tsis tau piav nws. Yog hais tias koj cov neeg muas zaub xav qhib lawv tus kheej neeg uas ua ntawv (raws li Linux), Tam sim no muaj ob txoj kev xaiv:

1. Hloov tshiab rau lub default RTSP kwj mus saib (Ua ntej firmware rau RTSP neeg uas ua ntawv)
2. Peb muab cov corresponding DEMUX tsev qiv ntawv thiab niaj zaus (Peb yuav tsum to taub cov neeg muas zaub Linux ib puag ncig thiaj li yuav compile ib lub tsev qiv ntawv suitable)
3. Qhov no yog qhov no “DEMUX library thiab niaj zaus” Sau los ntawm peb engineers nyob rau hauv lub Ubuntu 14.04 64lawv lub kaw lus

Tus thib ob yog ib yam nkaus thiab nyuaj heev rau cov neeg muas zaub zoo tib yam, Thiab peb tsis paub txoj kev loj hlob capabilities ntawm koj cov neeg muas zaub tus kheej neeg uas ua ntawv.

Vim hais tias ib txhia neeg tau raws li qhov teeb meem low latency ntawm qhov rais OS VLC neeg uas ua ntawv, Txawm peb kuaj ntawm no, Peb tsis nrhiav qhov teeb meem no. lub sij hawm ntawd, koj siv qhov rais los ntsuam xyuas. Tej zaum yog hais tias nws tau hloov mus Linux, Yuav muaj tsis RTSP streaming teeb meem. Thov sim kuaj cov Vcan1726 qauv nrog tus thawj version ntawm firmware rau Linux. Tej zaum qhov no tsis yog ib qho teeb meem rau Linux OS.

Lus nug: Koj puas tsim tau ib cov duab docker rau daim ntawv thov no? Uas ib qhov chaw nres nkoj yog siv rau cov kwj dej incoming kwj dej, Thiab lwm qhov chaw nres nkoj rau lub outgoing kwj nrog ib co lug siv codec (h264)?

Splayer thiab cov UDP Stream neeg uas ua ntawv?

SPlayer yog ib tug tawm neeg uas ua ntawv uas txhawb ntau yam yees duab formats, xws li UDP streaming.

UDP streaming yog ib txoj kev xa cov ntaub ntawv yees duab nyob rau hauv internet siv cov neeg siv Datagram Protocol (UDP), Nws yog ib tug ceev thiab yooj yim protocol uas tsis guarantee tus me nyuam los yog txiav txim ntawm lub packets.

UDP streaming yuav siv tau rau nyob yees duab broadcasting los yog tsawg-latency yees duab transmission, Tiam sis nws kuj yuav raug kev txom nyem los ntawm packet poob los yog kev noj nyiaj txiag.

Raws li lub web nrhiav tau, SPlayer yuav ua si UDP streams siv cov kauj ruam nram qab no:

• Qhib SPlayer thiab nias rau lub “Qhib URL” khawm nyob rau sab saum toj kaum tsev.
• Sau lub URL ntawm tus UDP kwj hauv daim ntawv udp://@ip: chaw nres nkoj, Qhov twg ip yog tus IP chaw nyob ntawm qhov chaw nres nkoj thiab chaw nres nkoj yog qhov chaw nres nkoj ntawm cov kwj dej. Piv txwv, udp://@224.0.0.1:1234.
• Nyem qhov no rau ntawm qhov “Ua li” khawm thiab tos cov kwj dej load.

Tus Splayer ua hauj lwm zoo rau Win10?

Lus nug: Peb yuav tsis pib Splayer 4.2 thiab 4.3 qhov rais 10. Koj yuav mov peb nrog cov version ntawm Splayer rau qhov rais 10 thiab 11?

4.2 pib thiab kaw thaum lub caij. 4.3 pib nrog cov lus yuam kev.

Faulting daim ntawv thov: Splayer.exe, Version: 1.0.0.1, stamp: 0x646d83e2
Faulting module lub npe: dvb_demux.dll, Version: 1.0.0.1, stamp: 0x5fe5bdbf
Tsis tas li ntawd xwb,: 0xc000005
Txhaum offset: 0x0001484a
Faulting txheej txheem id: 0x3888
Faulting daim ntawv thov pib lub sij hawm: 0x01da164b89c78eb
Faulting daim ntawv thov kev pab: C:\Cov neeg sivadminDownloadsSplayer_v4.3_2022.10.22Splayer.exe
Faulting module path: C:\Cov neeg sivadminDownloadsSplayer_v4.3_2022.10.22dvb_demux.dll
Ceeb Toom Id: 4af19407-045e-48e5-a0f7-86fc90c6b3d3
Faulting pob tag nrho lub npe:
Faulting package-relative application ID:

Teb: Thov koj sim siv peb Splayer_qt_v1.0.zip (103.5MB).

Feedback: Tus tshiab version ntawm SPlayer tej hauj lwm zoo ntawm qhov teeb meem nrog yeej 10! Ua tsaug!

Lus nug: Peb nrhiav tau lub sij hawm ncua ua thaum uas ua si cov yees duab los ntawm qhov kev pab cuam Reciver los Splayer program (UDP kwj dej).

Yog hais tias koj tham txog kev nthuav dav – Tus receiver connects nrog ib ethernet cable ncaj qha mus rau lub PC. Tus PC thiab receiver yog nyob rau hauv lub zos network. Thaum peb pib lub Splayer lub sij hawm ncua yog ib qho zoo thiab cov precise suav qhia tau hais tias peb 330 MSec, Nws yog me ntsis ntau tshaj ib tug ntawm cov zis HDMI tso zis uas peb cai txog 270 MSec. Zoo heev. Tiam sis yog peb tos ib co feeb tsis muaj kev hloov hauv qhov chaw ua hauj lwm peb saib ib continuous nce rau lub sij hawm ncua uas mus txog 1-1,5 sec uas tsis txais nyob rau hauv cov ntaub ntawv thov.
Nag hmo kuv kuaj nws kuv tus kheej rau yeej 10, Thiab Win11 rau txawv PCs nrog txoj tig-OFF Win Brandmauer nrog Splayer qt (version ntawm koj), thiab Splayer 4.3 (qub version). Kuv rov ua qhov teeb meem no txhua lub sij hawm nyob rau hauv tej configuration.
Thov pab kuv kho qhov teeb meem no. Peb xav tau qhov ncua sij hawm ncua sij hawm ntawm Splayer ua si uas yuav tsis ntau tshaj 350 MSec.

Teb: Tej teeb meem yuav tsum tsis txhob tshwm sim, Vim hais tias cov neeg uas ua ntawv muaj tsis muaj cache hauv low-latency hom, thiab qhov qeeb kiag li nyob ntawm tus decoding muaj peev xwm ntawm tus PC. Engineers yuav teeb lub chaw thiab kuaj nws hnub Monday tom ntej.

Lwm kis yog nug cov neeg muas zaub mus xyuas tus nqi refresh teev ntawm lawv laptop saib. Piv txwv, Yog hais tias lub koob yees duab inputs 1080p60, Ces tus refresh tus nqi ntawm cov neeg muas zaub laptop saib yuav tsum tau 60Hz. Txwv tsis pub, cov zaub yuav qeeb qeeb, Uas yuav tau ua rau cov ntaub ntawv congestion thiab ua kom paub zoo.

Tus Slayer neeg uas ua ntawv muaj ib tug loj qeeb, Xws li cov decoding qeeb los yog cov zaub qeeb qeeb, Nws yog tag nrho los ntawm 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. Piv txwv, send the ATSO0,30_ command through the parameter port, and the encoding outputs 1080p30 for testing.