Downloaded Video Shows Black Screen

[cosmarchy]

I am having problems viewing video from one particular camera connected to a NVR.

I have a DS-2CD4A25FWD-IZS camera and a DS-2CD2745F-IS camera connected to a DS-7604NI NVR.

I am unable to view video downloaded from the NVR (via the web interface) from the DS-2CD2745F-IS camera. Once a video has dowloaded, I get a black screen when I try to view it. I've tried two players (VLC and Windows Media Player - both of which are up to date) and the result is the same.

The seek bar shows a time which is about right for the downloaded video duration however it finishes in seconds as if it reached the end of the clip. There is no video at all, just a black screen where the video should be.

I have tried downloading using the clip tool and the download tool but both give me a black screen.

There are no issues with the DS-2CD4A25FWD-IZS camera; I can create a video with the clip tool and download and I can actually see the video. It is just the one camera which has this problem.

I had no issues with my Win 7 computer which I've used for a number of years and never had any issues with downloading and viewing video but I have recently moved to a Win 10 computer so I am wondering whether there are any additional files which are required.

Does anyone know how to fix this?

Thank you.

 

[alastairstevenson]

Do you have a link to a sample?

 

[cosmarchy]

Hopefully you can get hold of this file
Uploadfiles.io - 192.168.1.250_02_20180713195931101.mp4
It is 311KB so won't take forever to download!!

 

[alastairstevenson]

Just a small file, no problems.
Plays OK on Linux (videos, mpv player, VLC media player), *edit* though the timeline bar isn't right except for VLC.
Also plays OK with VLC in Win7 (VM) but not with WMP.

alastair@PC-I5 ~/Downloads $ mediainfo 192.168.1.250*
General
Complete name                            : 192.168.1.250_02_20180713195931101.mp4
Format                                   : MPEG-PS
File size                                : 311 KiB
Duration                                 : 9s 920ms
Overall bit rate                         : 257 Kbps

Video
ID                                       : 224 (0xE0)
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Main@L5
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 2 frames
Duration                                 : 9s 918ms
Width                                    : 2 560 pixels
Height                                   : 1 440 pixels
Display aspect ratio                     : 16:9
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Color range                              : Full
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

Audio
ID                                       : 192 (0xC0)
Format                                   : MPEG Audio
Duration                                 : 9s 920ms
Compression mode                         : Lossy
Delay relative to video                  : -4mn 58s

Text
ID                                       : 189 (0xBD)
Format                                   : RLE
Format/Info                              : Run-length encoding


alastair@PC-I5 ~/Downloads $

 

[58chev]

Plays fine in VLC on Windows 8.1

 

[TonyR]

Also plays OK with VLC in Win7 (VM) but not with WMP.

Strange....just the opposite for me: plays OK in Win 7 on WMP (Version 12.0.7601.23930), but in VLC (version 3.0.3) loads slowly and then shows just a quick blip (1/4 second?) of video with filename, gray background.

 

[geezer]

Windows 10 using MediaPlayer Classic - Home Cinema: a single frame is displayed for the whole 10 seconds.

 

[cosmarchy]

I think it must be something to do with either Win 10 or the new computer.

I took the file I downloaded on the Win 10 computer and played it on the old Win 7 computer and it plays just fine.

So, the question is, what is missing on the new computer??? I did wonder whether it was the codec however I have installed the Shark007 'Advanced Video Codec' and this hasn't made any difference. Mind you, I'm not sure how to set this up correctly or even if this is the right course of action!!

 

[Securame]

Install Hikvision codecs.

Tools - Hikvision Europe

Page 2, DSFilters v6.1.2.2

 

[cosmarchy]

@Securame seemed like this might well work from the look of things however it hasn't changed anything unfortunately