VA-API, Video Acceleration API, is an open source library which provides both hardware accelerated video encoding and decoding for use mostly with Intel (and AMD) graphics boards.
+AppImage will probably not allow for either VDPAU or VA-API hardware acceleration because the
+computer where AppImage is created will not have the same graphics card and/or vaapi/vdpau
+libraries as yours. In other words:
+\begin{itemize}
+ \item Hardware acceleration, vaapi or vdpau, works the same running either the created binary or the created AppImage from that binary on that same computer.
+ \item Hardware acceleration using an AppImage created on another computer running a different Operating System or even just a different level of Operating System, most likely will not work unless the user's computer just happens to have the same characteristics with respect to vaapi/vdpau as the computer where the AppImage was created.
+\end{itemize}
Currently only the most common codecs, such as MPEG-1, MPEG-2, MPEG-4, H.264 /MPEG-4 and h265 (hevc), are accelerated/optimized by the graphics card to play these particular video formats efficiently. The other formats are not optimized so you will see no performance improvement since the CPU will handle them as before, just as if no hardware acceleration was activated. There are many different graphics cards and computer systems setup, so you will have to test which specific settings work best for you. So far this has been tested at least with Nvidia, Radeon, and Broadwell graphics boards on some AMD and Intel computers; depending on the graphics card, two to ten times higher processing speeds can be achieved. However, most graphic operations are single-threaded so that performing the operations in the hardware may actually be slower than in software making use of multiple CPUs, which frequently multi-thread many operations simultaneously.
\item For large media files, use proxy to do your main editing.
\item In \texttt{Settings $\rightarrow$ Preferences, Appearance} tab, uncheck \textit{Use thumbnails in resource window}.
\item In \texttt{Settings $\rightarrow$ Preferences, Appearance} tab, uncheck \textit{Autocolor assets}.
- \item Speed-up certain time-consuming FFmpeg plugins through use of a carefully selected \texttt{.opts} file.
+ \item Speed-up certain time-consuming FFmpeg plugins through use of a carefully selected \texttt{.opts} file. See \nameref{sub:speedup_ffmpeg_plugin_opts}
\item For large media files, in \texttt{Settings $\rightarrow$ Preferences, Playback A}, Video Driver set \textit{use direct X11 render if possible}.
\item For the Video Driver in \texttt{Settings $\rightarrow$ Preferences, Playback A}, if using a good graphics card, choose \textit{X11-OpenGL}.
\item Set \textit{CIN\_HW\_DEV=vdpau} or \textit{vaapi} to use the graphics GPU for certain ffmpeg media decoding.
projects / goodguy / cin-manual-latex.git / blobdiff