Difference between revisions of "VSG:Video:Slow"

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(Created page with "__NOTOC__ ==Video displays first frames and black/grey only== <br> {{VSG}}")
 
 
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==Video displays first frames and black/grey only==
 
==Video displays first frames and black/grey only==
  
<br>
+
<p>
 +
This is the symptom of a slow decoding, and this is especially the case with high bitrate H264 or HEVC.
 +
</p>
 +
 
 +
<p>
 +
If you're using VLC < 3.0, you need turn on hardware acceleration.
 +
Preferences -> Input Codecs -> Hardware Acceleration.
 +
</p>
 +
 
 +
Is your Graphic card able to accelerate decoding ?
 +
 
 +
<br/>
 +
<b>For 4K H264</b>
 +
<ul>
 +
<li>Quick Sync 4 (Intel Broadwell ~)</li>
 +
<li>PureVideo HD 5 cards (Nvidia GT 520 ~)</li>
 +
<li>UVD 5.0 cards (AMD Radeon R9 ~)</li>
 +
</ul>
 +
 
 +
 
 +
<br/>
 +
<b>For HEVC</b>
 +
<ul>
 +
<li>Quick Sync 5 (Intel Skylake ~)</li>
 +
<li>PureVideo HD 7 cards (Nvidia GTX 950 ~, or GTX 750 SE)</li>
 +
<li>UVD 6.0 cards (AMD Radeon Rx300 ~)</li>
 +
</ul>
 +
 
 +
 
 +
<br/>
 +
<b>For HEVC 10bit</b>
 +
<ul>
 +
<li>Quick Sync 6 (Intel Kaby Lake ~)</li>
 +
<li>PureVideo HD 7 cards (Nvidia GTX 950 ~, or GTX 750 SE)</li>
 +
<li>UVD 6.0 Fiji/Carrizo cards (AMD Radeon Rx400 ~)</li>
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</ul>
 +
 
 +
<br/>
 +
<b>All information per chip</b>
 +
<br/>
 +
https://en.wikipedia.org/wiki/Intel_Quick_Sync_Video<br/>
 +
https://en.wikipedia.org/wiki/Unified_Video_Decoder<br/>
 +
https://en.wikipedia.org/wiki/Nvidia_PureVideo<br/>
  
 
{{VSG}}
 
{{VSG}}

Latest revision as of 18:48, 5 March 2018

Video displays first frames and black/grey only

This is the symptom of a slow decoding, and this is especially the case with high bitrate H264 or HEVC.

If you're using VLC < 3.0, you need turn on hardware acceleration. Preferences -> Input Codecs -> Hardware Acceleration.

Is your Graphic card able to accelerate decoding ?


For 4K H264

  • Quick Sync 4 (Intel Broadwell ~)
  • PureVideo HD 5 cards (Nvidia GT 520 ~)
  • UVD 5.0 cards (AMD Radeon R9 ~)



For HEVC

  • Quick Sync 5 (Intel Skylake ~)
  • PureVideo HD 7 cards (Nvidia GTX 950 ~, or GTX 750 SE)
  • UVD 6.0 cards (AMD Radeon Rx300 ~)



For HEVC 10bit

  • Quick Sync 6 (Intel Kaby Lake ~)
  • PureVideo HD 7 cards (Nvidia GTX 950 ~, or GTX 750 SE)
  • UVD 6.0 Fiji/Carrizo cards (AMD Radeon Rx400 ~)


All information per chip
https://en.wikipedia.org/wiki/Intel_Quick_Sync_Video
https://en.wikipedia.org/wiki/Unified_Video_Decoder
https://en.wikipedia.org/wiki/Nvidia_PureVideo

This page is part of the informal VLC Support Guide.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.