X-Git-Url: https://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=parts%2FAdvanced.tex;h=7ea9e216ab7b4544a8326f0ec5384e38d7e08043;hb=241347bfb707b8b973000762392611c757e7768f;hp=b056b2cf8197b29db2dd4ecbd878530dc4c5f874;hpb=03a48daa7d409836d88fa78fbfa776f5d2c9b727;p=goodguy%2Fcin-manual-latex.git diff --git a/parts/Advanced.tex b/parts/Advanced.tex index b056b2c..7ea9e21 100644 --- a/parts/Advanced.tex +++ b/parts/Advanced.tex @@ -249,6 +249,11 @@ The BIGGEST gain from using this is if you have media that is not \textit{seekab Another important function of Transcode is being able to convert the project's media into a high-quality \textit{mezzanine} codec \index{mezzanine codec} (sometimes also called \textit{intermediate} codec \index{digital intermediate}), which makes timeline work lighter and more efficient. In fact such codecs (ffv1, ProRes, DNxHD, OpenEXR, huffyuv, etc) are generally little or not at all compressed; the type of compression is intraframe --more suitable for editing, and the image quality (4:2:2 up; 10-bit color up; floating point; etc) is suitable for \textit{Color Correction}, \textit{Chroma Key} and \textit{Rotoscoping}. The use of mezzanine codecs leads to very large files, so you need to make sure you have enough storage space. +\paragraph{NOTE:} \CGG{} cannot do \textit{remuxing} without transcoding. For remuxing only, use \textit{ffmpeg} as shown in the following script. First move to the folder containing the files to be remuxed; the script takes all video files of a certain extension (in the following example \texttt{avi}) from the folder and its subfolders and makes a remux in a new container (in this example \texttt{mkv}) inside the new folder \texttt{remux}. The internal codec will remain the original one. Here is an example script: + +\begin{lstlisting}[numbers=none] + for f in $(find . -name '*.avi'); do ffmpeg -i "$f" -c:v copy -c:a copy "remux/{f%.*}.mkv "; done +\end{lstlisting} \section{OpenEDL}% \label{sec:openedl}