summaryrefslogtreecommitdiffstats
path: root/Modules/svmodule.c
diff options
context:
space:
mode:
Diffstat (limited to 'Modules/svmodule.c')
-rw-r--r--Modules/svmodule.c966
1 files changed, 0 insertions, 966 deletions
diff --git a/Modules/svmodule.c b/Modules/svmodule.c
deleted file mode 100644
index fb58f19..0000000
--- a/Modules/svmodule.c
+++ /dev/null
@@ -1,966 +0,0 @@
-/* SV module -- interface to the Indigo video board */
-
-/* WARNING! This module is for hardware that we don't have any more,
- so it hasn't been tested. It has been converted to the new coding
- style, and it is possible that this conversion has broken something
- -- user beware! */
-
-#include <sys/time.h>
-#include <svideo.h>
-#include "Python.h"
-#include "compile.h"
-#include "yuv.h" /* for YUV conversion functions */
-
-typedef struct {
- PyObject_HEAD
- SV_nodeP ob_svideo;
- svCaptureInfo ob_info;
-} svobject;
-
-typedef struct {
- PyObject_HEAD
- void *ob_capture;
- int ob_mustunlock;
- svCaptureInfo ob_info;
- svobject *ob_svideo;
-} captureobject;
-
-static PyObject *SvError; /* exception sv.error */
-
-static PyObject *newcaptureobject(svobject *, void *, int);
-
-/* Set a SV-specific error from svideo_errno and return NULL */
-static PyObject *
-sv_error(void)
-{
- PyErr_SetString(SvError, svStrerror(svideo_errno));
- return NULL;
-}
-
-static PyObject *
-svc_conversion(captureobject *self, PyObject *args, void (*function)(), float factor)
-{
- PyObject *output;
- int invert;
- char* outstr;
-
- if (!PyArg_Parse(args, "i", &invert))
- return NULL;
-
- if (!(output = PyString_FromStringAndSize(
- NULL,
- (int)(self->ob_info.width * self->ob_info.height * factor))))
- {
- return NULL;
- }
- if (!(outstr = PyString_AsString(output))) {
- Py_DECREF(output);
- return NULL;
- }
-
- (*function)((boolean)invert, self->ob_capture,
- outstr,
- self->ob_info.width, self->ob_info.height);
-
- return output;
-}
-
-/*
- * 3 functions to convert from Starter Video YUV 4:1:1 format to
- * Compression Library 4:2:2 Duplicate Chroma format.
- */
-static PyObject *
-svc_YUVtoYUV422DC(captureobject *self, PyObject *args)
-{
- if (self->ob_info.format != SV_YUV411_FRAMES) {
- PyErr_SetString(SvError, "data has bad format");
- return NULL;
- }
- return svc_conversion(self, args, yuv_sv411_to_cl422dc, 2.0);
-}
-
-static PyObject *
-svc_YUVtoYUV422DC_quarter(captureobject *self, PyObject *args)
-{
- if (self->ob_info.format != SV_YUV411_FRAMES) {
- PyErr_SetString(SvError, "data has bad format");
- return NULL;
- }
- return svc_conversion(self, args,
- yuv_sv411_to_cl422dc_quartersize, 0.5);
-}
-
-static PyObject *
-svc_YUVtoYUV422DC_sixteenth(captureobject *self, PyObject *args)
-{
- if (self->ob_info.format != SV_YUV411_FRAMES) {
- PyErr_SetString(SvError, "data has bad format");
- return NULL;
- }
- return svc_conversion(self, args,
- yuv_sv411_to_cl422dc_sixteenthsize, 0.125);
-}
-
-static PyObject *
-svc_YUVtoRGB(captureobject *self, PyObject *args)
-{
- switch (self->ob_info.format) {
- case SV_YUV411_FRAMES:
- case SV_YUV411_FRAMES_AND_BLANKING_BUFFER:
- break;
- default:
- PyErr_SetString(SvError, "data had bad format");
- return NULL;
- }
- return svc_conversion(self, args, svYUVtoRGB, (float) sizeof(long));
-}
-
-static PyObject *
-svc_RGB8toRGB32(captureobject *self, PyObject *args)
-{
- if (self->ob_info.format != SV_RGB8_FRAMES) {
- PyErr_SetString(SvError, "data has bad format");
- return NULL;
- }
- return svc_conversion(self, args, svRGB8toRGB32, (float) sizeof(long));
-}
-
-static PyObject *
-svc_InterleaveFields(captureobject *self, PyObject *args)
-{
- if (self->ob_info.format != SV_RGB8_FRAMES) {
- PyErr_SetString(SvError, "data has bad format");
- return NULL;
- }
- return svc_conversion(self, args, svInterleaveFields, 1.0);
-}
-
-static PyObject *
-svc_GetFields(captureobject *self, PyObject *args)
-{
- PyObject *f1 = NULL;
- PyObject *f2 = NULL;
- PyObject *ret = NULL;
- int fieldsize;
- char* obcapture;
-
- if (self->ob_info.format != SV_RGB8_FRAMES) {
- PyErr_SetString(SvError, "data has bad format");
- return NULL;
- }
-
- fieldsize = self->ob_info.width * self->ob_info.height / 2;
- obcapture = (char*)self->ob_capture;
-
- if (!(f1 = PyString_FromStringAndSize(obcapture, fieldsize)))
- goto finally;
- if (!(f2 = PyString_FromStringAndSize(obcapture + fieldsize,
- fieldsize)))
- goto finally;
- ret = PyTuple_Pack(2, f1, f2);
-
- finally:
- Py_XDECREF(f1);
- Py_XDECREF(f2);
- return ret;
-}
-
-static PyObject *
-svc_UnlockCaptureData(captureobject *self, PyObject *args)
-{
- if (!PyArg_Parse(args, ""))
- return NULL;
-
- if (!self->ob_mustunlock) {
- PyErr_SetString(SvError, "buffer should not be unlocked");
- return NULL;
- }
-
- if (svUnlockCaptureData(self->ob_svideo->ob_svideo, self->ob_capture))
- return sv_error();
-
- self->ob_mustunlock = 0;
-
- Py_INCREF(Py_None);
- return Py_None;
-}
-
-#ifdef USE_GL
-#include <gl.h>
-
-static PyObject *
-svc_lrectwrite(captureobject *self, PyObject *args)
-{
- Screencoord x1, x2, y1, y2;
-
- if (!PyArg_Parse(args, "(hhhh)", &x1, &x2, &y1, &y2))
- return NULL;
-
- lrectwrite(x1, x2, y1, y2, (unsigned long *) self->ob_capture);
-
- Py_INCREF(Py_None);
- return Py_None;
-}
-#endif
-
-static PyObject *
-svc_writefile(captureobject *self, PyObject *args)
-{
- PyObject *file;
- int size;
- FILE* fp;
-
- if (!PyArg_Parse(args, "O", &file))
- return NULL;
-
- if (!PyFile_Check(file)) {
- PyErr_SetString(SvError, "not a file object");
- return NULL;
- }
-
- if (!(fp = PyFile_AsFile(file)))
- return NULL;
-
- size = self->ob_info.width * self->ob_info.height;
-
- if (fwrite(self->ob_capture, sizeof(long), size, fp) != size) {
- PyErr_SetString(SvError, "writing failed");
- return NULL;
- }
-
- Py_INCREF(Py_None);
- return Py_None;
-}
-
-static PyObject *
-svc_FindVisibleRegion(captureobject *self, PyObject *args)
-{
- void *visible;
- int width;
-
- if (!PyArg_Parse(args, ""))
- return NULL;
-
- if (svFindVisibleRegion(self->ob_svideo->ob_svideo,
- self->ob_capture, &visible,
- self->ob_info.width))
- return sv_error();
-
- if (visible == NULL) {
- PyErr_SetString(SvError, "data in wrong format");
- return NULL;
- }
-
- return newcaptureobject(self->ob_svideo, visible, 0);
-}
-
-static PyMethodDef capture_methods[] = {
- {"YUVtoRGB", (PyCFunction)svc_YUVtoRGB, METH_OLDARGS},
- {"RGB8toRGB32", (PyCFunction)svc_RGB8toRGB32, METH_OLDARGS},
- {"InterleaveFields", (PyCFunction)svc_InterleaveFields, METH_OLDARGS},
- {"UnlockCaptureData", (PyCFunction)svc_UnlockCaptureData, METH_OLDARGS},
- {"FindVisibleRegion", (PyCFunction)svc_FindVisibleRegion, METH_OLDARGS},
- {"GetFields", (PyCFunction)svc_GetFields, METH_OLDARGS},
- {"YUVtoYUV422DC", (PyCFunction)svc_YUVtoYUV422DC, METH_OLDARGS},
- {"YUVtoYUV422DC_quarter",(PyCFunction)svc_YUVtoYUV422DC_quarter, METH_OLDARGS},
- {"YUVtoYUV422DC_sixteenth",(PyCFunction)svc_YUVtoYUV422DC_sixteenth, METH_OLDARGS},
-#ifdef USE_GL
- {"lrectwrite", (PyCFunction)svc_lrectwrite, METH_OLDARGS},
-#endif
- {"writefile", (PyCFunction)svc_writefile, METH_OLDARGS},
- {NULL, NULL} /* sentinel */
-};
-
-static void
-capture_dealloc(captureobject *self)
-{
- if (self->ob_capture != NULL) {
- if (self->ob_mustunlock)
- (void)svUnlockCaptureData(self->ob_svideo->ob_svideo,
- self->ob_capture);
- self->ob_capture = NULL;
- Py_DECREF(self->ob_svideo);
- self->ob_svideo = NULL;
- }
- PyObject_Del(self);
-}
-
-static PyObject *
-capture_getattr(svobject *self, char *name)
-{
- return Py_FindMethod(capture_methods, (PyObject *)self, name);
-}
-
-PyTypeObject Capturetype = {
- PyObject_HEAD_INIT(&PyType_Type)
- 0, /*ob_size*/
- "sv.capture", /*tp_name*/
- sizeof(captureobject), /*tp_size*/
- 0, /*tp_itemsize*/
- /* methods */
- (destructor)capture_dealloc, /*tp_dealloc*/
- 0, /*tp_print*/
- (getattrfunc)capture_getattr, /*tp_getattr*/
- 0, /*tp_setattr*/
- 0, /*tp_compare*/
- 0, /*tp_repr*/
-};
-
-static PyObject *
-newcaptureobject(svobject *self, void *ptr, int mustunlock)
-{
- captureobject *p;
-
- p = PyObject_New(captureobject, &Capturetype);
- if (p == NULL)
- return NULL;
- p->ob_svideo = self;
- Py_INCREF(self);
- p->ob_capture = ptr;
- p->ob_mustunlock = mustunlock;
- p->ob_info = self->ob_info;
- return (PyObject *) p;
-}
-
-static PyObject *
-sv_GetCaptureData(svobject *self, PyObject *args)
-{
- void *ptr;
- long fieldID;
- PyObject *res, *c;
-
- if (!PyArg_Parse(args, ""))
- return NULL;
-
- if (svGetCaptureData(self->ob_svideo, &ptr, &fieldID))
- return sv_error();
-
- if (ptr == NULL) {
- PyErr_SetString(SvError, "no data available");
- return NULL;
- }
-
- c = newcaptureobject(self, ptr, 1);
- if (c == NULL)
- return NULL;
- res = Py_BuildValue("(Oi)", c, fieldID);
- Py_DECREF(c);
- return res;
-}
-
-static PyObject *
-sv_BindGLWindow(svobject *self, PyObject *args)
-{
- long wid;
- int mode;
-
- if (!PyArg_Parse(args, "(ii)", &wid, &mode))
- return NULL;
-
- if (svBindGLWindow(self->ob_svideo, wid, mode))
- return sv_error();
-
- Py_INCREF(Py_None);
- return Py_None;
-}
-
-static PyObject *
-sv_EndContinuousCapture(svobject *self, PyObject *args)
-{
-
- if (!PyArg_Parse(args, ""))
- return NULL;
-
- if (svEndContinuousCapture(self->ob_svideo))
- return sv_error();
-
- Py_INCREF(Py_None);
- return Py_None;
-}
-
-static PyObject *
-sv_IsVideoDisplayed(svobject *self, PyObject *args)
-{
- int v;
-
- if (!PyArg_Parse(args, ""))
- return NULL;
-
- v = svIsVideoDisplayed(self->ob_svideo);
- if (v == -1)
- return sv_error();
-
- return PyInt_FromLong((long) v);
-}
-
-static PyObject *
-sv_OutputOffset(svobject *self, PyObject *args)
-{
- int x_offset;
- int y_offset;
-
- if (!PyArg_Parse(args, "(ii)", &x_offset, &y_offset))
- return NULL;
-
- if (svOutputOffset(self->ob_svideo, x_offset, y_offset))
- return sv_error();
-
- Py_INCREF(Py_None);
- return Py_None;
-}
-
-static PyObject *
-sv_PutFrame(svobject *self, PyObject *args)
-{
- char *buffer;
-
- if (!PyArg_Parse(args, "s", &buffer))
- return NULL;
-
- if (svPutFrame(self->ob_svideo, buffer))
- return sv_error();
-
- Py_INCREF(Py_None);
- return Py_None;
-}
-
-static PyObject *
-sv_QuerySize(svobject *self, PyObject *args)
-{
- int w;
- int h;
- int rw;
- int rh;
-
- if (!PyArg_Parse(args, "(ii)", &w, &h))
- return NULL;
-
- if (svQuerySize(self->ob_svideo, w, h, &rw, &rh))
- return sv_error();
-
- return Py_BuildValue("(ii)", (long) rw, (long) rh);
-}
-
-static PyObject *
-sv_SetSize(svobject *self, PyObject *args)
-{
- int w;
- int h;
-
- if (!PyArg_Parse(args, "(ii)", &w, &h))
- return NULL;
-
- if (svSetSize(self->ob_svideo, w, h))
- return sv_error();
-
- Py_INCREF(Py_None);
- return Py_None;
-}
-
-static PyObject *
-sv_SetStdDefaults(svobject *self, PyObject *args)
-{
-
- if (!PyArg_Parse(args, ""))
- return NULL;
-
- if (svSetStdDefaults(self->ob_svideo))
- return sv_error();
-
- Py_INCREF(Py_None);
- return Py_None;
-}
-
-static PyObject *
-sv_UseExclusive(svobject *self, PyObject *args)
-{
- boolean onoff;
- int mode;
-
- if (!PyArg_Parse(args, "(ii)", &onoff, &mode))
- return NULL;
-
- if (svUseExclusive(self->ob_svideo, onoff, mode))
- return sv_error();
-
- Py_INCREF(Py_None);
- return Py_None;
-}
-
-static PyObject *
-sv_WindowOffset(svobject *self, PyObject *args)
-{
- int x_offset;
- int y_offset;
-
- if (!PyArg_Parse(args, "(ii)", &x_offset, &y_offset))
- return NULL;
-
- if (svWindowOffset(self->ob_svideo, x_offset, y_offset))
- return sv_error();
-
- Py_INCREF(Py_None);
- return Py_None;
-}
-
-static PyObject *
-sv_CaptureBurst(svobject *self, PyObject *args)
-{
- int bytes, i;
- svCaptureInfo info;
- void *bitvector = NULL;
- PyObject *videodata = NULL;
- PyObject *bitvecobj = NULL;
- PyObject *res = NULL;
- static PyObject *evenitem, *odditem;
-
- if (!PyArg_Parse(args, "(iiiii)", &info.format,
- &info.width, &info.height,
- &info.size, &info.samplingrate))
- return NULL;
-
- switch (info.format) {
- case SV_RGB8_FRAMES:
- bitvector = malloc(SV_BITVEC_SIZE(info.size));
- break;
- case SV_YUV411_FRAMES_AND_BLANKING_BUFFER:
- break;
- default:
- PyErr_SetString(SvError, "illegal format specified");
- return NULL;
- }
-
- if (svQueryCaptureBufferSize(self->ob_svideo, &info, &bytes)) {
- res = sv_error();
- goto finally;
- }
-
- if (!(videodata = PyString_FromStringAndSize(NULL, bytes)))
- goto finally;
-
- /* XXX -- need to do something about the bitvector */
- {
- char* str = PyString_AsString(videodata);
- if (!str)
- goto finally;
-
- if (svCaptureBurst(self->ob_svideo, &info, str, bitvector)) {
- res = sv_error();
- goto finally;
- }
- }
-
- if (bitvector) {
- if (evenitem == NULL) {
- if (!(evenitem = PyInt_FromLong(0)))
- goto finally;
- }
- if (odditem == NULL) {
- if (!(odditem = PyInt_FromLong(1)))
- goto finally;
- }
- if (!(bitvecobj = PyTuple_New(2 * info.size)))
- goto finally;
-
- for (i = 0; i < 2 * info.size; i++) {
- int sts;
-
- if (SV_GET_FIELD(bitvector, i) == SV_EVEN_FIELD) {
- Py_INCREF(evenitem);
- sts = PyTuple_SetItem(bitvecobj, i, evenitem);
- } else {
- Py_INCREF(odditem);
- sts = PyTuple_SetItem(bitvecobj, i, odditem);
- }
- if (sts < 0)
- goto finally;
- }
- } else {
- bitvecobj = Py_None;
- Py_INCREF(Py_None);
- }
-
- res = Py_BuildValue("((iiiii)OO)", info.format,
- info.width, info.height,
- info.size, info.samplingrate,
- videodata, bitvecobj);
-
- finally:
- if (bitvector)
- free(bitvector);
-
- Py_XDECREF(videodata);
- Py_XDECREF(bitvecobj);
- return res;
-}
-
-static PyObject *
-sv_CaptureOneFrame(svobject *self, PyObject *args)
-{
- svCaptureInfo info;
- int format, width, height;
- int bytes;
- PyObject *videodata = NULL;
- PyObject *res = NULL;
- char *str;
-
- if (!PyArg_Parse(args, "(iii)", &format, &width, &height))
- return NULL;
-
- info.format = format;
- info.width = width;
- info.height = height;
- info.size = 0;
- info.samplingrate = 0;
- if (svQueryCaptureBufferSize(self->ob_svideo, &info, &bytes))
- return sv_error();
-
- if (!(videodata = PyString_FromStringAndSize(NULL, bytes)))
- return NULL;
-
- str = PyString_AsString(videodata);
- if (!str)
- goto finally;
-
- if (svCaptureOneFrame(self->ob_svideo, format, &width, &height, str)) {
- res = sv_error();
- goto finally;
- }
-
- res = Py_BuildValue("(iiO)", width, height, videodata);
-
- finally:
- Py_XDECREF(videodata);
- return res;
-}
-
-static PyObject *
-sv_InitContinuousCapture(svobject *self, PyObject *args)
-{
- svCaptureInfo info;
-
- if (!PyArg_Parse(args, "(iiiii)", &info.format,
- &info.width, &info.height,
- &info.size, &info.samplingrate))
- return NULL;
-
- if (svInitContinuousCapture(self->ob_svideo, &info))
- return sv_error();
-
- self->ob_info = info;
-
- return Py_BuildValue("(iiiii)", info.format, info.width, info.height,
- info.size, info.samplingrate);
-}
-
-static PyObject *
-sv_LoadMap(svobject *self, PyObject *args)
-{
- PyObject *rgb;
- PyObject *res = NULL;
- rgb_tuple *mapp = NULL;
- int maptype;
- int i, j; /* indices */
-
- if (!PyArg_Parse(args, "(iO)", &maptype, &rgb))
- return NULL;
-
- if (!PyList_Check(rgb) || PyList_Size(rgb) != 256) {
- PyErr_BadArgument();
- return NULL;
- }
-
- if (!(mapp = PyMem_NEW(rgb_tuple, 256)))
- return PyErr_NoMemory();
-
- for (i = 0; i < 256; i++) {
- PyObject* v = PyList_GetItem(rgb, i);
- if (!v)
- goto finally;
-
- if (!PyTuple_Check(v) || PyTuple_Size(v) != 3) {
- PyErr_BadArgument();
- goto finally;
- }
- for (j = 0; j < 3; j++) {
- PyObject* cell = PyTuple_GetItem(v, j);
- if (!cell)
- goto finally;
-
- if (!PyInt_Check(cell)) {
- PyErr_BadArgument();
- goto finally;
- }
- switch (j) {
- case 0: mapp[i].red = PyInt_AsLong(cell); break;
- case 1: mapp[i].blue = PyInt_AsLong(cell); break;
- case 2: mapp[i].green = PyInt_AsLong(cell); break;
- }
- if (PyErr_Occurred())
- goto finally;
- }
- }
-
- if (svLoadMap(self->ob_svideo, maptype, mapp)) {
- res = sv_error();
- goto finally;
- }
-
- Py_INCREF(Py_None);
- res = Py_None;
-
- finally:
- PyMem_DEL(mapp);
- return res;
-}
-
-static PyObject *
-sv_CloseVideo(svobject *self, PyObject *args)
-{
- if (!PyArg_Parse(args, ""))
- return NULL;
-
- if (svCloseVideo(self->ob_svideo))
- return sv_error();
-
- self->ob_svideo = NULL;
- Py_INCREF(Py_None);
- return Py_None;
-}
-
-static PyObject *
-doParams(svobject *self, PyObject *args,
- int (*func)(SV_nodeP, long *, int), int modified)
-{
- PyObject *list;
- PyObject *res = NULL;
- long *PVbuffer = NULL;
- long length;
- int i;
-
- if (!PyArg_Parse(args, "O", &list))
- return NULL;
-
- if (!PyList_Check(list)) {
- PyErr_BadArgument();
- return NULL;
- }
-
- if ((length = PyList_Size(list)) < 0)
- return NULL;
-
- PVbuffer = PyMem_NEW(long, length);
- if (PVbuffer == NULL)
- return PyErr_NoMemory();
-
- for (i = 0; i < length; i++) {
- PyObject *v = PyList_GetItem(list, i);
- if (!v)
- goto finally;
-
- if (!PyInt_Check(v)) {
- PyErr_BadArgument();
- goto finally;
- }
- PVbuffer[i] = PyInt_AsLong(v);
- /* can't just test the return value, because what if the
- value was -1?!
- */
- if (PVbuffer[i] == -1 && PyErr_Occurred())
- goto finally;
- }
-
- if ((*func)(self->ob_svideo, PVbuffer, length)) {
- res = sv_error();
- goto finally;
- }
-
- if (modified) {
- for (i = 0; i < length; i++) {
- PyObject* v = PyInt_FromLong(PVbuffer[i]);
- if (!v || PyList_SetItem(list, i, v) < 0)
- goto finally;
- }
- }
-
- Py_INCREF(Py_None);
- res = Py_None;
-
- finally:
- PyMem_DEL(PVbuffer);
- return res;
-}
-
-static PyObject *
-sv_GetParam(PyObject *self, PyObject *args)
-{
- return doParams(self, args, svGetParam, 1);
-}
-
-static PyObject *
-sv_GetParamRange(PyObject *self, PyObject *args)
-{
- return doParams(self, args, svGetParamRange, 1);
-}
-
-static PyObject *
-sv_SetParam(PyObject *self, PyObject *args)
-{
- return doParams(self, args, svSetParam, 0);
-}
-
-static PyMethodDef svideo_methods[] = {
- {"BindGLWindow", (PyCFunction)sv_BindGLWindow, METH_OLDARGS},
- {"EndContinuousCapture",(PyCFunction)sv_EndContinuousCapture, METH_OLDARGS},
- {"IsVideoDisplayed", (PyCFunction)sv_IsVideoDisplayed, METH_OLDARGS},
- {"OutputOffset", (PyCFunction)sv_OutputOffset, METH_OLDARGS},
- {"PutFrame", (PyCFunction)sv_PutFrame, METH_OLDARGS},
- {"QuerySize", (PyCFunction)sv_QuerySize, METH_OLDARGS},
- {"SetSize", (PyCFunction)sv_SetSize, METH_OLDARGS},
- {"SetStdDefaults", (PyCFunction)sv_SetStdDefaults, METH_OLDARGS},
- {"UseExclusive", (PyCFunction)sv_UseExclusive, METH_OLDARGS},
- {"WindowOffset", (PyCFunction)sv_WindowOffset, METH_OLDARGS},
- {"InitContinuousCapture",(PyCFunction)sv_InitContinuousCapture, METH_OLDARGS},
- {"CaptureBurst", (PyCFunction)sv_CaptureBurst, METH_OLDARGS},
- {"CaptureOneFrame", (PyCFunction)sv_CaptureOneFrame, METH_OLDARGS},
- {"GetCaptureData", (PyCFunction)sv_GetCaptureData, METH_OLDARGS},
- {"CloseVideo", (PyCFunction)sv_CloseVideo, METH_OLDARGS},
- {"LoadMap", (PyCFunction)sv_LoadMap, METH_OLDARGS},
- {"GetParam", (PyCFunction)sv_GetParam, METH_OLDARGS},
- {"GetParamRange", (PyCFunction)sv_GetParamRange, METH_OLDARGS},
- {"SetParam", (PyCFunction)sv_SetParam, METH_OLDARGS},
- {NULL, NULL} /* sentinel */
-};
-
-static PyObject *
-sv_conversion(PyObject *self, PyObject *args, void (*function)(),
- int inputfactor, float factor)
-{
- int invert, width, height, inputlength;
- char *input, *str;
- PyObject *output;
-
- if (!PyArg_Parse(args, "(is#ii)", &invert,
- &input, &inputlength, &width, &height))
- return NULL;
-
- if (width * height * inputfactor > inputlength) {
- PyErr_SetString(SvError, "input buffer not long enough");
- return NULL;
- }
-
- if (!(output = PyString_FromStringAndSize(NULL,
- (int)(width * height * factor))))
- return NULL;
-
- str = PyString_AsString(output);
- if (!str) {
- Py_DECREF(output);
- return NULL;
- }
- (*function)(invert, input, str, width, height);
-
- return output;
-}
-
-static PyObject *
-sv_InterleaveFields(PyObject *self, PyObject *args)
-{
- return sv_conversion(self, args, svInterleaveFields, 1, 1.0);
-}
-
-static PyObject *
-sv_RGB8toRGB32(PyObject *self, PyObject *args)
-{
- return sv_conversion(self, args, svRGB8toRGB32, 1, (float) sizeof(long));
-}
-
-static PyObject *
-sv_YUVtoRGB(PyObject *self, PyObject *args)
-{
- return sv_conversion(self, args, svYUVtoRGB, 2, (float) sizeof(long));
-}
-
-static void
-svideo_dealloc(svobject *self)
-{
- if (self->ob_svideo != NULL)
- (void) svCloseVideo(self->ob_svideo);
- PyObject_Del(self);
-}
-
-static PyObject *
-svideo_getattr(svobject *self, char *name)
-{
- return Py_FindMethod(svideo_methods, (PyObject *)self, name);
-}
-
-PyTypeObject Svtype = {
- PyObject_HEAD_INIT(&PyType_Type)
- 0, /*ob_size*/
- "sv.sv", /*tp_name*/
- sizeof(svobject), /*tp_size*/
- 0, /*tp_itemsize*/
- /* methods */
- (destructor)svideo_dealloc, /*tp_dealloc*/
- 0, /*tp_print*/
- (getattrfunc)svideo_getattr, /*tp_getattr*/
- 0, /*tp_setattr*/
- 0, /*tp_compare*/
- 0, /*tp_repr*/
-};
-
-static PyObject *
-newsvobject(SV_nodeP svp)
-{
- svobject *p;
-
- p = PyObject_New(svobject, &Svtype);
- if (p == NULL)
- return NULL;
- p->ob_svideo = svp;
- p->ob_info.format = 0;
- p->ob_info.size = 0;
- p->ob_info.width = 0;
- p->ob_info.height = 0;
- p->ob_info.samplingrate = 0;
- return (PyObject *) p;
-}
-
-static PyObject *
-sv_OpenVideo(PyObject *self, PyObject *args)
-{
- SV_nodeP svp;
-
- if (!PyArg_Parse(args, ""))
- return NULL;
-
- svp = svOpenVideo();
- if (svp == NULL)
- return sv_error();
-
- return newsvobject(svp);
-}
-
-static PyMethodDef sv_methods[] = {
- {"InterleaveFields", (PyCFunction)sv_InterleaveFields, METH_OLDARGS},
- {"RGB8toRGB32", (PyCFunction)sv_RGB8toRGB32, METH_OLDARGS},
- {"YUVtoRGB", (PyCFunction)sv_YUVtoRGB, METH_OLDARGS},
- {"OpenVideo", (PyCFunction)sv_OpenVideo, METH_OLDARGS},
- {NULL, NULL} /* Sentinel */
-};
-
-void
-initsv(void)
-{
- PyObject *m, *d;
-
- m = Py_InitModule("sv", sv_methods);
- if (m == NULL)
- return;
- d = PyModule_GetDict(m);
-
- SvError = PyErr_NewException("sv.error", NULL, NULL);
- if (SvError == NULL || PyDict_SetItemString(d, "error", SvError) != 0)
- return;
-}
generated by cgit v0.12 at 2024-11-11 12:29:46 (GMT)