diff options
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/lib/lib.tex | 1 | ||||
| -rw-r--r-- | Doc/lib/libsndhdr.tex | 52 | ||||
| -rw-r--r-- | Doc/lib/libundoc.tex | 9 |
3 files changed, 56 insertions, 6 deletions
diff --git a/Doc/lib/lib.tex b/Doc/lib/lib.tex index 7c94d6a..39d0ffb 100644 --- a/Doc/lib/lib.tex +++ b/Doc/lib/lib.tex @@ -208,6 +208,7 @@ add new extensions to Python and how to embed it in other applications. \input{libjpeg} \input{librgbimg} \input{libimghdr} +\input{libsndhdr} \input{libcrypto} % Cryptographic Services \input{libmd5} diff --git a/Doc/lib/libsndhdr.tex b/Doc/lib/libsndhdr.tex new file mode 100644 index 0000000..7d83440 --- /dev/null +++ b/Doc/lib/libsndhdr.tex @@ -0,0 +1,52 @@ +\section{\module{sndhdr} --- + Determine type of sound file.} + +\declaremodule{standard}{sndhdr} +\modulesynopsis{Determine type of a sound file.} +\sectionauthor{Fred L. Drake, Jr.}{fdrake@acm.org} +% Based on comments in the module source file. + + +The \module{sndhdr} provides utility functions which attempt to +determine the type of sound data which is in a file. When these +functions are able to determine what type of sound data is stored in a +file, they return a tuple \code{(\var{type}, \var{sampling_rate}, +\var{channels}, \var{frames}, \var{bits_per_sample})}. The value for +\var{type} indicates the data type and will be one of the strings +\code{'aifc'}, \code{'aiff'}, \code{'au'}, \code{'hcom'}, +\code{'sndr'}, \code{'sndt'}, \code{'voc'}, \code{'wav'}, +\code{'8svx'}, \code{'sb'}, \code{'ub'}, or \code{'ul'}. The +\var{sampling_rate} will be either the actual value or \code{0} if +unknown or difficult to decode. Similarly, \var{channels} will be +either the number of channels or \code{0} if it cannot be determined +or if the value is difficult to decode. The value for \var{frames} +will be either the number of frames or \code{-1}. The last item in +the tuple, \var{bits_per_sample}, will either be the sample size in +bits or \code{'A'} for A-LAW\index{A-LAW} or \code{'U'} for +u-LAW\index{u-LAW}. + + +\begin{funcdesc}{what}{filename} + Determines the type of sound data stored in the file \var{filename} + using \function{whathdr()}. If not successful, \function{whatraw()} + is used. If neither attempt succeeds, returns \code{None}, + otherwise it returns a tuple as described above. +\end{funcdesc} + + +\begin{funcdesc}{whathdr}{filename} + Determines the type of sound data stored in a file based on the file + header. The name of the file is given by \var{filename}. This + function returns a tuple as described above on success, or + \code{None}. +\end{funcdesc} + + +\begin{funcdesc}{whatraw}{filename} + Determines the type of raw sound data stored in a file without a + header. The name of the file is given by \var{filename}. This + function returns a tuple as described above on success, or + \code{None}. + + This requires the \program{whatsound} program to work. +\end{funcdesc} diff --git a/Doc/lib/libundoc.tex b/Doc/lib/libundoc.tex index 22684d8..5d1b3ca 100644 --- a/Doc/lib/libundoc.tex +++ b/Doc/lib/libundoc.tex @@ -143,14 +143,8 @@ sizes (used by pdb) \item[toaiff.py] --- Convert "arbitrary" sound files to AIFF files -\item[sndhdr.py] ---- recognizing sound files - \item[wave.py] --- parse WAVE files - -\item[whatsound.py] ---- recognizing sound files \end{description} @@ -232,6 +226,9 @@ func.func_name, co.co_firstlineno). --- Measure time intervals to high resolution (use \function{time.clock()} instead). (This is an extension module.) +\item[whatsound.py] +--- recognizing sound files + \item[zmod.py] --- Compute properties of mathematical "fields" \end{description} |