\section{Using Ydiff to check results}
\label{sec:ydiff_check_results}
+\index{Ydiff}
Delivered with Infinity \CGG{} and in the \CGG{} path, there is a file \texttt{ydiff.C} This program compares the output from 2 files to see the differences . Do: \texttt{cd cin\_path} and key in \texttt{make ydiff}.
\section{Image Sequence Creation}
\label{sec:image_sequence_creation}
+\index{image sequence}
Example script to create a jpeglist sequence file is next:
\begin{lstlisting}[numbers=none]
#!/bin/bash
out="$1"
-dir=`dirname "$out"`
+dir=$(dirname "$out")
shift
-geom=`jpegtopnm "$1" | head -2 | tail -1`
-w=`(set - $geom; echo $1)`
-h=`(set - $geom; echo $2)`
+geom=$(jpegtopnm "$1" | head -2 | tail -1)
+w="$(echo $geom | cut -d " " -f1)"
+h="$(echo $geom | cut -d " " -f2)"
exec > $out
echo "JPEGLIST"
echo "# First line is always JPEGLIST"
echo "$h"
echo "# List of image files follows"
while [ $# -gt 0 ]; do
- if [ x`dirname "$1"` = x"$dir" ]; then
+ if [ x$(dirname "$1") = x"$dir" ]; then
f=./`basename "$1"`;
else
f="$1";
shift
done
\end{lstlisting}
+To use this script, you will have to install the package on your operating system that
+includes \textit{jpegtopnm} which is ususally \textit{netpbm}.
Example usage of this script follows:
\qquad \texttt{jpeglist.sh outfile infiles*.jpg}
-\section{Webm\,/\,Vp9 Usage and Example File}
-\label{sec:webm/vp9_usage_example}
-% FIXME No footnotes with expressions of thanks in the title.
-% \protect\footnote{credit Frederic Roenitz}}
-
-\textsc{VP9} is a video codec licensed under the BSD license and is
-considered open source,
-% Sisvel Announces AV1 Patent Pool, March 10, 2020
-% https://www.streamingmedia.com/Articles/ReadArticle.aspx?ArticleID=139636
-% Webm / VP9 is a media file format which is free to use under the
-% BSD license and is open-source; thus there are no licensing
-% issues to be concerned about.
-the \textsc{Webm} container is based on \textsc{Matroska} for video
-and \textsc{Opus} for audio. There are some common \textsc{VP9} rendering
-options files that support creation of video for YouTube,
-Dailymotion, and other online video services.
-
-YouTube easy startup steps are documented in the Appendix (\ref{sec:youtube_with_cinelerra}). These same steps have been verified to work for creating Dailymotion videos -- however, the created files must be renamed before uploading to change the youtube extension to webm instead for Dailymotion.
-
-Below is one of the \textsc{VP9} rendering options file with documentation for specifics:
-
-\textbf{webm libvpx-vp9}
-
-(20171114-2203)
-
-from {\small \url{https://developers.google.com/media/vp9/settings/vod/}}
-
-1280x720 (24, 25 or 30 frames per second)
-
-Bitrate (bit rate)
-
-\textsc{VP9} supports several different bitrate modes:
-
-\textit{mode:}
-
-\begin{tabular}{p{6cm} p{10cm}}
- Constant Quantizer (Q) & Allows you to specify a fixed quantizer value; bitrate will vary \\
- Constrained Quality (CQ) & Allows you to set a maximum quality level. Quality may vary within bitrate parameters\\
- Variable Bitrate (VBR) & Balances quality and bitrate over time within constraints on bitrate\\
- Constant Bitrate (CBR) & Attempts to keep the bitrate fairly constant while quality varies\\
-\end{tabular}
-
-CQ mode is recommended for file-based video (as opposed to streaming). The following FFMpeg command-line parameters are used for CQ mode:
-
-\textit{FFMpeg}:
-
-\begin{center}
- \begin{tabular}{{p{4cm} p{10cm}}}
- -b:v <arg> & Sets target bitrate (e.g. 500k)\\
- -minrate <arg> & Sets minimum bitrate.\\
- -maxrate <arg> & Sets maximum bitrate.\\
- -crf <arg> & sets maximum quality level. Valid values are 0-63, lower numbers are higher quality.\\
-\end{tabular}
-\end{center}
-
-\textit{Note 1}: Bitrate is specified in kbps, or kilobits per second. In video compression a kilobit is generally assumed to be 1000 bits (not 1024).
-
-\textit{Note 2:} Other codecs in FFMpeg accept the \textit{-crf} parameter but may interpret the value differently. If you are using \textit{-crf} with other codecs you will likely use different values for VP9.
-
-\texttt{bitrate=1024k}\\
-\texttt{minrate=512k}\\
-\texttt{maxrate=1485k}\\
-\texttt{crf=32}
-
-\textit{Tiling} splits the video into rectangular regions, which allows multi-threading for encoding and decoding. The number of tiles is always a power of two. 0=1 tile; 1=2; 2=4; 3=8; 4=16; 5=32\\
-\texttt{tile-columns=2}
-
-(modified from {\small \url{https://trac.ffmpeg.org/wiki/EncodingForStreamingSites}})
-
-To use a 2 second \textit{GOP} (Group of Pictures), simply multiply your output frame rate $\times$ 2. For example, if your input is \textit{-framerate 30}, then use \textit{-g 60}.\\
-\texttt{g=240}
-
-number of \textit{threads} to use during encoding\\
-\texttt{threads=8}
-
-\textit{Quality} may be set to good, best, or realtime\\
-\texttt{quality=good}
-
-\textit{Speed}: this parameter has different meanings depending upon whether quality is set to good or realtime. Speed settings 0-4 apply for VoD in good and best, with 0 being the highest quality and 4 being the lowest. Realtime valid values are 5-8; lower numbers mean higher quality\\
-\texttt{speed=4}
-
\section{Details about .bcast5 Files}
\label{sec:details_.bcast5_files}
+\index{.bcast5}
The following extensions of files in \CGG{}'s \texttt{.bcast5} directory are explained below.
\item [.rc] rc stands for \textit{run commands} so basically represents a script
\item [.toc] toc is \textit{table of contents} file for MPEG video files (a type of index)
\item [Cinelerra\_plugins] a list of the currently loaded plugins available in your \CGG{} session
- \item [Cinelerra{}\_rc] the user's preferences and settings are saved in this file to be used on startup
+ \item [Cinelerra{}\_rc] the user's preferences and settings are saved in this file to be used on startup. This file can be carefully edited to change startup values for certain parameters, but if you inadvertently set up something incorrectly, you may end up crashing the program.
\item [ladspa\_plugins{\dots}] list of currently loaded ladspa plugins for each version of \CGG{} being used
\item [layout\#...\_rc] user-defined window layout setup with the layout name as part of the file name
\item [.xml] used for various backups or for the current settings of plugins that you have used
\item [.png] thumbnails of files in Resources so they do not have to be created over and over
\end{labeling}
-
+\section{Focusing the 4 main windows as a group}
+\label{sec:focus_group}
+
+When working with multiple programs it is often the case where a set of windows needs to be minimized
+or maximized temporarily while working with a different program. This can be a little awkward with
+\CGG{} because there are 4 distinct windows that are treated individually. To improve the workflow
+so that the 4 are minimized or maximized together as a group, you can use a routine called \textit{xdotool}.
+This will help to automatically focus all 4 of the windows as one window while still letting the user
+reposition the 4 screens. The "focusing windows as a group" option makes it so that you can quickly
+move back and forth between this program and other programs. Here is how to do this.
+
+\begin{description}
+ \item Install xdotool \url{https://www.semicomplete.com/projects/xdotool/}
+
+ \item Iconifying all Cinelerra windows at once:
+\newline xdotool search --name Cinelerra windowminimize \%@
+ \item Reactivating all Cinelerra windows at once:
+\newline xdotool search --name Cinelerra windowactivate \%@
+\end{description}
+
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