Answers.Body: <p>There is hardly any video in your AVC file. The data rate is 0.2Mb and the frame is a full size PC desktop resolution (WQHD) instead of a  "real" video resolution such as 1920x1080. 
  Based on its size, I'd guess you only have 2 frames in there. That would be stretching a bit if you need a real video file. A low bandwidth (25Mb) AVC source of this size would be 100x bigger.</p>
  
  <p>Try using a standard HD res at the source, a bigger bitrate and more key frames.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-08-20T22:38:36.803Z
Answers.Text: Why do you say that 25 Mbps is a "low bandwidth" for AVC? That's very high, I'd say
Answers.UserDisplayName: mcont
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-07-20T06:56:22.947Z
Answers.LastActivityDate: 2018-07-20T19:01:37.030Z
Answers.LastEditDate: 2018-07-20T19:01:37.030Z
Answers.UserDisplayName: FMU
Body: <p>I have a video file from my Hikvision NVR which I cannot play on Windows 10 in either VLC or Windows Media Player - all I get is a black video and the seek bar just whizzes along...</p>
  
  <p>I can play this video in VLC on Windows 7 so I'm pretty sure it has something to do with the fact that it is a new computer.</p>
  
  <p>Media Info gives me the following:</p>
  
  <pre><code>Complete name               : C:\Users\cos\Web\PlaybackFiles\2018-07-18\192.168.1.250_02_20180718224704172.mp4
  Format                      : MPEG-PS
  File size                   : 3.40 MiB
  Duration                    : 1 min 51 s
  Overall bit rate            : 257 kb/s
  FileExtension_Invalid       : mpeg mpg m2p vob pss evo
  
  Video
  ID                          : 224 (0xE0)
  Format                      : AVC
  Format/Info                 : Advanced Video Codec
  Format profile              : Main@L5
  Format settings             : CABAC / 2 Ref Frames
  Format settings, CABAC      : Yes
  Format settings, ReFrames   : 2 frames
  Duration                    : 1 min 51 s
  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                    : 1 min 51 s
  Compression mode            : Lossy
  Delay relative to video     : -5 min 7 s
  
  Text
  ID                          : 189 (0xBD)
  Format                      : RLE
  Format/Info                 : Run-length encoding
  Duration                    : 1 min 41 s
  </code></pre>
  
  <p>I'm sure this is a codec, or perhaps lack of codec, issue but I need some help to determine what the cause of the issue is.</p>
  
  <p>Has anyone experienced thisbefore?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2018-07-20T05:38:48.070Z
Comments.Text: It's not a codec issue, per se. Rename extension to .mpg or .vob and check. Else, remux using ffmpeg: `ffmpeg -i in.mp4 -c copy out.mp4`
Comments.UserDisplayName: Gyan
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2018-07-20T19:16:24.067Z
Comments.Text: @Gyan tried renaming and I still get the same results.  Annyoing that I suddenly lost this ability by upgrading to a different OS!!
Comments.UserDisplayName: cosmarchy
Tags: <video><codec>
Title: What codec do I need for this video file?
UserDisplayName: cosmarchy
ThreadText: # What codec do I need for this video file?
  
  (Asked by: username_0 on 2018-07-19)
  
  I have a video file from my Hikvision NVR which I cannot play on Windows 10 in either VLC or Windows Media Player - all I get is a black video and the seek bar just whizzes along...
  
  I can play this video in VLC on Windows 7 so I'm pretty sure it has something to do with the fact that it is a new computer.
  
  Media Info gives me the following:
  
  ```
  Complete name               : C:\Users\cos\Web\PlaybackFiles\2018-07-18\192.168.1.250_02_20180718224704172.mp4
  Format                      : MPEG-PS
  File size                   : 3.40 MiB
  Duration                    : 1 min 51 s
  Overall bit rate            : 257 kb/s
  FileExtension_Invalid       : mpeg mpg m2p vob pss evo
  
  Video
  ID                          : 224 (0xE0)
  Format                      : AVC
  Format/Info                 : Advanced Video Codec
  Format profile              : Main@L5
  Format settings             : CABAC / 2 Ref Frames
  Format settings, CABAC      : Yes
  Format settings, ReFrames   : 2 frames
  Duration                    : 1 min 51 s
  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                    : 1 min 51 s
  Compression mode            : Lossy
  Delay relative to video     : -5 min 7 s
  
  Text
  ID                          : 189 (0xBD)
  Format                      : RLE
  Format/Info                 : Run-length encoding
  Duration                    : 1 min 41 s
  
  ```
  
  I'm sure this is a codec, or perhaps lack of codec, issue but I need some help to determine what the cause of the issue is.
  
  Has anyone experienced thisbefore?
  
  **Tags:** video, codec
  
  > **Comments:**
  > **username_1**: It's not a codec issue, per se. Rename extension to .mpg or .vob and check. Else, remux using ffmpeg: `ffmpeg -i in.mp4 -c copy out.mp4`  
  > **username_0**: @username_1 tried renaming and I still get the same results.  Annyoing that I suddenly lost this ability by upgrading to a different OS!!  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_2 on 2018-07-20. Score: -1
  
  There is hardly any video in your AVC file. The data rate is 0.2Mb and the frame is a full size PC desktop resolution (WQHD) instead of a "real" video resolution such as 1920x1080.
  Based on its size, I'd guess you only have 2 frames in there. That would be stretching a bit if you need a real video file. A low bandwidth (25Mb) AVC source of this size would be 100x bigger.
  
  Try using a standard HD res at the source, a bigger bitrate and more key frames.
  
  > **Comments:**
  > **username_3**: Why do you say that 25 Mbps is a "low bandwidth" for AVC? That's very high, I'd say  
  
  ---
  
  