README.md


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csound-memread : Memory audification/sonification for Csound on Linux
Overview
csound-memread provides a way to read data associated with a process ID as audio.
Only Linux is supported or an OS that supports userspace reading of /proc/.../mem
Requirements

Linux
Cmake >= 2.8.12
Csound with development headers >= 6.14.0
Optional: X11 with development libraries

Tested on Linux as of August 2021.
Installation
Create a build directory at the top of the source tree, execute cmake .., make and optionally make install as root. If the latter is not used/possible then the resulting libcsxtract library can be used with the --opcode-lib flag in Csound.
eg:
mkdir build && cd build
cmake ..
make && sudo make install


Cmake should find Csound and X11 using the modules in the cmake/Modules directory and installation should be as simple as above.
Examples
Some examples are provided in the examples directory.
Opcode reference
ipids[] memps
Obtain a list of process IDs owned by the executing user.

ipids[] : array of process IDs

Sname mempsname ipid
Get the process command line or name for a given process ID if available.


ipid : the process ID


Sname : the process command line


ifn mem2tab ipid [, iskipzero=0]
Read the memory associated with a process ID into a new function table which can be
used by loscil and other such opcodes.


ifn : the function table number created


ipid : the process ID

iskipzero : if non-zero, skip empty memory locations, without this the output may contain a lot of silence depending on the process

aout memson ipid, koffset, kbuffermultiplier [, ibuffersize=441000, iskipzero=0]
Buffered memory reading and direct audio output. The buffer is only refilled when koffset changes.


aout : the sonified memory data


ipid : the process ID

koffset : position to read memory from, normalised to between 0 and 1
kbuffermultiplier : buffer read size multiplier between 0 and 1
ibuffersize : the size in samples of the buffer to read memory data into
iskipzero : if non-zero, skip empty memory locations, without this the output may contain a lot of silence depending on the process