proxy examples from IgorB and a few other changes

[goodguy/cin-manual-latex.git] / parts / Rendering.tex

diff --git a/parts/Rendering.tex b/parts/Rendering.tex
index cfb1e59a71488fe00596f46888c8fd94231878fe..af97965049ba418a31f32ba583bb58dc656293d6 100644 (file)
--- a/parts/Rendering.tex
+++ b/parts/Rendering.tex
@@ -174,7 +174,9 @@ all parameter configurations.
        list.  The list is provided by ffmpeg as input selection, but is
        more like suggestions than fact.  For example, the raw formats can
        take almost any format, but the rawvideo codec actually specifies no
-       legal formats.
+       legal formats.  Note that if you want a very specific Bitrate you must
+       make sure there is not conflicting parameter values set such as Quality
+       or CRF.
 \end{itemize}
 
 \noindent Some option files provide \textit{cin\_pix\_fmt} to
@@ -185,7 +187,7 @@ errors when the other provided parameters conflict with the
 parameter dictates pixel format must be \texttt{yuv420p}.
 
 \paragraph{cin\_bitrate} If you specify the bitrate, you can not
-specify the quality.\\ Example: \textit{cin\_bitrate=2000000}
+specify the quality or CRF.\\ Example: \textit{cin\_bitrate=2000000}
 
 \paragraph{cin\_quality} If you specify the quality, you can not
 specify the bitrate.\\ Example: \textit{cin\_quality=7}
@@ -215,6 +217,8 @@ information on all these options can be found at
 \href{https://ffmpeg.org/ffmpeg-all.html#Format-Options}{ffmpeg.org}
 sections 19 and 21. See also \nameref{sub:modifying_ffmpeg_cinelerra}.
 
+Render presets in \CGG{} should work Out Of the Box. You can still configure the \textit{Global Options} and \textit{Private Options} manually. Finding the combination of parameters that best suits your needs, or simply finding working (\textit{legal}) combinations, requires studying each codec in depth. You can start by looking in Wikipedia until you get to download and study the \textit{white papers} of the codecs of interest. In any case, you must then start a long experimental phase, trying presets with different configurations or creating new ones, until you get satisfactory results. If you create new presets it is a good idea to make them known on the mailing list ({\small \url{https://lists.cinelerra-gg.org/mailman/listinfo/cin}}) or on the MantisBT Bug Tracker ({\small \url{https://www.cinelerra-gg.org/bugtracker/my_view_page.php}}) so that they can be integrated into subsequent versions of \CGG{}. For an introduction see \nameref{sec:overview_formats}.
+
 \section{Some Specific Rendering}%
 \label{sec:some_specific_rendering}