View source for VSG:Video:Slow

__NOTOC__
==Video displays first frames and black/grey only==

<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>
</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}}