diff options
| -rw-r--r-- | README.md | 51 | ||||
| -rw-r--r-- | src/opcodes.cpp | 4 |
2 files changed, 48 insertions, 7 deletions
@@ -1,8 +1,8 @@ # csound-datacore : Data audification/sonification for Csound on Linux ## Overview -csound-datacore 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 +csound-datacore provides a way to read raw data from disk, memory and screen. +For the memory and X11 window reading opcodes, only Linux is supported or an OS that supports userspace reading of /proc/.../mem ## Requirements * Linux @@ -10,7 +10,7 @@ Only Linux is supported or an OS that supports userspace reading of /proc/.../me * Csound with development headers >= 6.14.0 * Optional: X11 with development libraries -Tested on Linux as of August 2021. +Tested on Linux as of August 2021, Windows as of March 2024. ## Installation @@ -30,7 +30,7 @@ Some examples are provided in the examples directory. ## Opcode reference ### ipids[] memps -Obtain a list of process IDs owned by the executing user. +Obtain a list of process IDs readable by the executing user. * ipids[] : array of process IDs @@ -43,6 +43,16 @@ Get the process command line or name for a given process ID if available. * Sname : the process command line +### isize mempssize ipid [, iskipzero=0] +Get the memory usage of a process, interpreted as a number of audio samples. + +* isize : the size in samples + +* ipid : the process ID +* iskipzero : if non-zero, skip empty memory locations associated with the process + + + ### 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. @@ -62,4 +72,35 @@ Buffered memory reading and direct audio output. The buffer is only refilled whe * 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
\ No newline at end of file +* iskipzero : if non-zero, skip empty memory locations, without this the output may contain a lot of silence depending on the process + + +### ifn rawreadtable Sfile [, ichannels=1, istart=0, iskip=1] +Read a file from the filesystem to a new f-table, interpreting raw character data as floats according to the orchestra samplerate and bit depth of the build. + +* ifn : the newly created f-table containing the data read + +* Sfile : path of the file to read +* ichannels : how many channels to interpret the raw data as (1 or 2) +* istart : offset the initial read by this number of bytes +* iskip : how many bytes to increment each read step by + + +### aL [, aR] rawread Sfile [, iloop=0] +Read a file from the filesystem, interpreting raw character data as floats according to the orchestra samplerate and bit depth of the build. + +* aL, aR : left and right channels. If only one output is specified then the file is read as mono data, otherwise stereo. + +* Sfile : path of the file to read +* iloop : whether to loop the reading of the file when the end is reached; 1 = loop, 0 = no loop + + +### aout winson iwindowid +Read the contents of a X11 window and interpret pixel data as floats, outputting audio correpsonding to the orchestra samplerate and bit depth. +Currently not fully implemented and iwindowid will default to the DefaultRootWindow response from X11. + +* aout : the resulting audio + +* iwindowid : the X11 window ID to inspect + + diff --git a/src/opcodes.cpp b/src/opcodes.cpp index fab6c7c..65ba587 100644 --- a/src/opcodes.cpp +++ b/src/opcodes.cpp @@ -537,8 +537,8 @@ struct winson : csnd::Plugin<1, 1> { int init() { display = XOpenDisplay(NULL); - //root = DefaultRootWindow(display); - root = 0x2200004; + root = DefaultRootWindow(display); + //root = 0x2200004; XWindowAttributes gwa; XGetWindowAttributes(display, root, &gwa); |