995 lines
20 KiB
C
995 lines
20 KiB
C
/**********************************************************
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Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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The Netherlands.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the names of Stichting Mathematisch
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Centrum or CWI not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior permission.
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STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
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THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
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FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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******************************************************************/
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/* SV module -- interface to the Indigo video board */
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#include <sys/time.h>
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#include <svideo.h>
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#include "allobjects.h"
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#include "import.h"
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#include "modsupport.h"
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#include "compile.h"
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#include "ceval.h"
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#include "yuv.h" /* for YUV conversion functions */
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typedef struct {
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OB_HEAD
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SV_nodeP ob_svideo;
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svCaptureInfo ob_info;
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} svobject;
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typedef struct {
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OB_HEAD
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void *ob_capture;
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int ob_mustunlock;
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svCaptureInfo ob_info;
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svobject *ob_svideo;
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} captureobject;
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static object *SvError; /* exception sv.error */
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static object *newcaptureobject PROTO((svobject *, void *, int));
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/* Set a SV-specific error from svideo_errno and return NULL */
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static object *
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sv_error()
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{
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err_setstr(SvError, svStrerror(svideo_errno));
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return NULL;
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}
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static object *
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svc_conversion(self, args, function, factor)
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captureobject *self;
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object *args;
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void (*function)();
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float factor;
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{
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object *output;
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int invert;
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if (!getargs(args, "i", &invert))
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return NULL;
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output = newsizedstringobject(NULL, (int) (self->ob_info.width * self->ob_info.height * factor));
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if (output == NULL)
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return NULL;
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(*function)((boolean) invert, self->ob_capture, getstringvalue(output),
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self->ob_info.width, self->ob_info.height);
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return output;
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}
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/*
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* 3 functions to convert from Starter Video YUV 4:1:1 format to
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* Compression Library 4:2:2 Duplicate Chroma format.
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*/
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static object *
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svc_YUVtoYUV422DC(self, args)
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captureobject *self;
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object *args;
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{
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if (self->ob_info.format != SV_YUV411_FRAMES) {
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err_setstr(SvError, "data has bad format");
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return NULL;
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}
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return svc_conversion(self, args, yuv_sv411_to_cl422dc, 2.0);
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}
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static object *
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svc_YUVtoYUV422DC_quarter(self, args)
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captureobject *self;
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object *args;
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{
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if (self->ob_info.format != SV_YUV411_FRAMES) {
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err_setstr(SvError, "data has bad format");
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return NULL;
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}
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return svc_conversion(self, args, yuv_sv411_to_cl422dc_quartersize, 0.5);
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}
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static object *
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svc_YUVtoYUV422DC_sixteenth(self, args)
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captureobject *self;
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object *args;
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{
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if (self->ob_info.format != SV_YUV411_FRAMES) {
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err_setstr(SvError, "data has bad format");
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return NULL;
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}
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return svc_conversion(self, args, yuv_sv411_to_cl422dc_sixteenthsize, 0.125);
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}
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static object *
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svc_YUVtoRGB(self, args)
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captureobject *self;
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object *args;
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{
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switch (self->ob_info.format) {
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case SV_YUV411_FRAMES:
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case SV_YUV411_FRAMES_AND_BLANKING_BUFFER:
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break;
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default:
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err_setstr(SvError, "data had bad format");
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return NULL;
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}
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return svc_conversion(self, args, svYUVtoRGB, (float) sizeof(long));
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}
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static object *
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svc_RGB8toRGB32(self, args)
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captureobject *self;
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object *args;
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{
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if (self->ob_info.format != SV_RGB8_FRAMES) {
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err_setstr(SvError, "data has bad format");
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return NULL;
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}
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return svc_conversion(self, args, svRGB8toRGB32, (float) sizeof(long));
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}
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static object *
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svc_InterleaveFields(self, args)
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captureobject *self;
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object *args;
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{
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if (self->ob_info.format != SV_RGB8_FRAMES) {
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err_setstr(SvError, "data has bad format");
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return NULL;
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}
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return svc_conversion(self, args, svInterleaveFields, 1.0);
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}
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static object *
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svc_GetFields(self, args)
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captureobject *self;
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object *args;
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{
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object *f1, *f2, *ret;
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int fieldsize;
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if (self->ob_info.format != SV_RGB8_FRAMES) {
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err_setstr(SvError, "data has bad format");
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return NULL;
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}
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fieldsize = self->ob_info.width * self->ob_info.height / 2;
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f1 = newsizedstringobject((char *) self->ob_capture, fieldsize);
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f2 = newsizedstringobject((char *) self->ob_capture + fieldsize, fieldsize);
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ret = mkvalue("(OO)", f1, f2);
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XDECREF(f1);
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XDECREF(f2);
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return ret;
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}
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static object *
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svc_UnlockCaptureData(self, args)
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captureobject *self;
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object *args;
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{
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if (!getnoarg(args))
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return NULL;
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if (!self->ob_mustunlock) {
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err_setstr(SvError, "buffer should not be unlocked");
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return NULL;
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}
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if (svUnlockCaptureData(self->ob_svideo->ob_svideo, self->ob_capture))
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return sv_error();
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self->ob_mustunlock = 0;
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INCREF(None);
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return None;
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}
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#ifdef USE_GL
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#include <gl.h>
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static object *
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svc_lrectwrite(self, args)
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captureobject *self;
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object *args;
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{
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Screencoord x1, x2, y1, y2;
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if (!getargs(args, "(hhhh)", &x1, &x2, &y1, &y2))
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return NULL;
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lrectwrite(x1, x2, y1, y2, (unsigned long *) self->ob_capture);
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INCREF(None);
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return None;
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}
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#endif
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static object *
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svc_writefile(self, args)
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captureobject *self;
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object *args;
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{
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object *file;
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int size;
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if (!getargs(args, "O", &file))
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return NULL;
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if (!is_fileobject(file)) {
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err_setstr(SvError, "not a file object");
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return NULL;
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}
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size = self->ob_info.width * self->ob_info.height;
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if (fwrite(self->ob_capture, sizeof(long), size, getfilefile(file)) != size) {
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err_setstr(SvError, "writing failed");
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return NULL;
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}
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INCREF(None);
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return None;
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}
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static object *
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svc_FindVisibleRegion(self, args)
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captureobject *self;
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object *args;
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{
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void *visible;
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int width;
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if (!getnoarg(args))
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return NULL;
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if (svFindVisibleRegion(self->ob_svideo->ob_svideo, self->ob_capture, &visible, self->ob_info.width))
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return sv_error();
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if (visible == NULL) {
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err_setstr(SvError, "data in wrong format");
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return NULL;
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}
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return newcaptureobject(self->ob_svideo, visible, 0);
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}
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static struct methodlist capture_methods[] = {
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{"YUVtoRGB", (method)svc_YUVtoRGB},
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{"RGB8toRGB32", (method)svc_RGB8toRGB32},
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{"InterleaveFields", (method)svc_InterleaveFields},
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{"UnlockCaptureData", (method)svc_UnlockCaptureData},
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{"FindVisibleRegion", (method)svc_FindVisibleRegion},
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{"GetFields", (method)svc_GetFields},
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{"YUVtoYUV422DC", (method)svc_YUVtoYUV422DC},
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{"YUVtoYUV422DC_quarter",(method)svc_YUVtoYUV422DC_quarter},
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{"YUVtoYUV422DC_sixteenth",(method)svc_YUVtoYUV422DC_sixteenth},
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#ifdef USE_GL
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{"lrectwrite", (method)svc_lrectwrite},
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#endif
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{"writefile", (method)svc_writefile},
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{NULL, NULL} /* sentinel */
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};
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static void
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capture_dealloc(self)
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captureobject *self;
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{
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if (self->ob_capture != NULL) {
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if (self->ob_mustunlock)
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(void) svUnlockCaptureData(self->ob_svideo->ob_svideo, self->ob_capture);
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self->ob_capture = NULL;
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DECREF(self->ob_svideo);
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self->ob_svideo = NULL;
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}
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DEL(self);
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}
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static object *
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capture_getattr(self, name)
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svobject *self;
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char *name;
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{
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return findmethod(capture_methods, (object *)self, name);
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}
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typeobject Capturetype = {
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OB_HEAD_INIT(&Typetype)
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0, /*ob_size*/
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"capture", /*tp_name*/
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sizeof(captureobject), /*tp_size*/
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0, /*tp_itemsize*/
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/* methods */
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(destructor)capture_dealloc, /*tp_dealloc*/
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0, /*tp_print*/
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(getattrfunc)capture_getattr, /*tp_getattr*/
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0, /*tp_setattr*/
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0, /*tp_compare*/
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0, /*tp_repr*/
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};
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static object *
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newcaptureobject(self, ptr, mustunlock)
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svobject *self;
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void *ptr;
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int mustunlock;
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{
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captureobject *p;
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p = NEWOBJ(captureobject, &Capturetype);
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if (p == NULL)
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return NULL;
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p->ob_svideo = self;
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INCREF(self);
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p->ob_capture = ptr;
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p->ob_mustunlock = mustunlock;
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p->ob_info = self->ob_info;
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return (object *) p;
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}
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static object *
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sv_GetCaptureData(self, args)
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svobject *self;
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object *args;
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{
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void *ptr;
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long fieldID;
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object *res, *c;
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if (!getnoarg(args))
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return NULL;
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if (svGetCaptureData(self->ob_svideo, &ptr, &fieldID))
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return sv_error();
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if (ptr == NULL) {
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err_setstr(SvError, "no data available");
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return NULL;
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}
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c = newcaptureobject(self, ptr, 1);
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if (c == NULL)
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return NULL;
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res = mkvalue("(Oi)", c, fieldID);
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DECREF(c);
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return res;
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}
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static object *
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sv_BindGLWindow(self, args)
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svobject *self;
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object *args;
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{
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long wid;
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int mode;
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if (!getargs(args, "(ii)", &wid, &mode))
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return NULL;
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if (svBindGLWindow(self->ob_svideo, wid, mode))
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return sv_error();
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INCREF(None);
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return None;
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}
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static object *
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sv_EndContinuousCapture(self, args)
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svobject *self;
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object *args;
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{
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if (!getnoarg(args))
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return NULL;
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if (svEndContinuousCapture(self->ob_svideo))
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return sv_error();
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INCREF(None);
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return None;
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}
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static object *
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sv_IsVideoDisplayed(self, args)
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svobject *self;
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object *args;
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{
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int v;
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if (!getnoarg(args))
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return NULL;
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v = svIsVideoDisplayed(self->ob_svideo);
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if (v == -1)
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return sv_error();
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return newintobject((long) v);
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}
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static object *
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sv_OutputOffset(self, args)
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svobject *self;
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object *args;
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{
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int x_offset;
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int y_offset;
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if (!getargs(args, "(ii)", &x_offset, &y_offset))
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return NULL;
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if (svOutputOffset(self->ob_svideo, x_offset, y_offset))
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return sv_error();
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INCREF(None);
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return None;
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}
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static object *
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sv_PutFrame(self, args)
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svobject *self;
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object *args;
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{
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char *buffer;
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if (!getargs(args, "s", &buffer))
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return NULL;
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if (svPutFrame(self->ob_svideo, buffer))
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return sv_error();
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INCREF(None);
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return None;
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}
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static object *
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sv_QuerySize(self, args)
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svobject *self;
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object *args;
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{
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int w;
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int h;
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int rw;
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int rh;
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if (!getargs(args, "(ii)", &w, &h))
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return NULL;
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if (svQuerySize(self->ob_svideo, w, h, &rw, &rh))
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return sv_error();
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return mkvalue("(ii)", (long) rw, (long) rh);
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}
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static object *
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sv_SetSize(self, args)
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svobject *self;
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object *args;
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{
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int w;
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int h;
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if (!getargs(args, "(ii)", &w, &h))
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return NULL;
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if (svSetSize(self->ob_svideo, w, h))
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return sv_error();
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INCREF(None);
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return None;
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}
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static object *
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sv_SetStdDefaults(self, args)
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svobject *self;
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object *args;
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{
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if (!getnoarg(args))
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return NULL;
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if (svSetStdDefaults(self->ob_svideo))
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return sv_error();
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INCREF(None);
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return None;
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}
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static object *
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sv_UseExclusive(self, args)
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svobject *self;
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object *args;
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{
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boolean onoff;
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int mode;
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if (!getargs(args, "(ii)", &onoff, &mode))
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return NULL;
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if (svUseExclusive(self->ob_svideo, onoff, mode))
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return sv_error();
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INCREF(None);
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return None;
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}
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static object *
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sv_WindowOffset(self, args)
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svobject *self;
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object *args;
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{
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int x_offset;
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int y_offset;
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if (!getargs(args, "(ii)", &x_offset, &y_offset))
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return NULL;
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if (svWindowOffset(self->ob_svideo, x_offset, y_offset))
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return sv_error();
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INCREF(None);
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return None;
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}
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static object *
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sv_CaptureBurst(self, args)
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svobject *self;
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object *args;
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{
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int bytes, i;
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svCaptureInfo info;
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void *bitvector = NULL;
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object *videodata, *bitvecobj, *res;
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static object *evenitem, *odditem;
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if (!getargs(args, "(iiiii)", &info.format, &info.width, &info.height,
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&info.size, &info.samplingrate))
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return NULL;
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switch (info.format) {
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case SV_RGB8_FRAMES:
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bitvector = malloc(SV_BITVEC_SIZE(info.size));
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break;
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case SV_YUV411_FRAMES_AND_BLANKING_BUFFER:
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break;
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default:
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err_setstr(SvError, "illegal format specified");
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return NULL;
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}
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if (svQueryCaptureBufferSize(self->ob_svideo, &info, &bytes)) {
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if (bitvector)
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free(bitvector);
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return sv_error();
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}
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videodata = newsizedstringobject(NULL, bytes);
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if (videodata == NULL) {
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if (bitvector)
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free(bitvector);
|
|
return NULL;
|
|
}
|
|
|
|
/* XXX -- need to do something about the bitvector */
|
|
if (svCaptureBurst(self->ob_svideo, &info, getstringvalue(videodata),
|
|
bitvector)) {
|
|
if (bitvector)
|
|
free(bitvector);
|
|
DECREF(videodata);
|
|
return sv_error();
|
|
}
|
|
|
|
if (bitvector) {
|
|
if (evenitem == NULL) {
|
|
evenitem = newintobject(0);
|
|
if (evenitem == NULL) {
|
|
free(bitvector);
|
|
DECREF(videodata);
|
|
return NULL;
|
|
}
|
|
}
|
|
if (odditem == NULL) {
|
|
odditem = newintobject(1);
|
|
if (odditem == NULL) {
|
|
free(bitvector);
|
|
DECREF(videodata);
|
|
return NULL;
|
|
}
|
|
}
|
|
bitvecobj = newtupleobject(2 * info.size);
|
|
if (bitvecobj == NULL) {
|
|
free(bitvecobj);
|
|
DECREF(videodata);
|
|
return NULL;
|
|
}
|
|
for (i = 0; i < 2 * info.size; i++) {
|
|
if (SV_GET_FIELD(bitvector, i) == SV_EVEN_FIELD) {
|
|
INCREF(evenitem);
|
|
settupleitem(bitvecobj, i, evenitem);
|
|
} else {
|
|
INCREF(odditem);
|
|
settupleitem(bitvecobj, i, odditem);
|
|
}
|
|
}
|
|
free(bitvector);
|
|
} else {
|
|
bitvecobj = None;
|
|
INCREF(None);
|
|
}
|
|
|
|
res = mkvalue("((iiiii)OO)", info.format, info.width, info.height,
|
|
info.size, info.samplingrate, videodata, bitvecobj);
|
|
DECREF(videodata);
|
|
DECREF(bitvecobj);
|
|
return res;
|
|
}
|
|
|
|
static object *
|
|
sv_CaptureOneFrame(self, args)
|
|
svobject *self;
|
|
object *args;
|
|
{
|
|
svCaptureInfo info;
|
|
int format, width, height;
|
|
int bytes;
|
|
object *videodata, *res;
|
|
|
|
if (!getargs(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();
|
|
videodata = newsizedstringobject(NULL, bytes);
|
|
if (videodata == NULL)
|
|
return NULL;
|
|
if (svCaptureOneFrame(self->ob_svideo, format, &width, &height,
|
|
getstringvalue(videodata))) {
|
|
DECREF(videodata);
|
|
return sv_error();
|
|
}
|
|
|
|
res = mkvalue("(iiO)", width, height, videodata);
|
|
DECREF(videodata);
|
|
return res;
|
|
}
|
|
|
|
static object *
|
|
sv_InitContinuousCapture(self, args)
|
|
svobject *self;
|
|
object *args;
|
|
{
|
|
svCaptureInfo info;
|
|
|
|
if (!getargs(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 mkvalue("(iiiii)", info.format, info.width, info.height,
|
|
info.size, info.samplingrate);
|
|
}
|
|
|
|
static object *
|
|
sv_LoadMap(self, args)
|
|
svobject *self;
|
|
object *args;
|
|
{
|
|
object *rgb, *v, *cell;
|
|
rgb_tuple *mapp;
|
|
int maptype;
|
|
int i, j; /* indices */
|
|
|
|
if (!getargs(args, "(iO)", &maptype, &rgb))
|
|
return NULL;
|
|
if (!is_listobject(rgb) || getlistsize(rgb) != 256) {
|
|
err_badarg();
|
|
return NULL;
|
|
}
|
|
mapp = NEW(rgb_tuple, 256);
|
|
if (mapp == NULL)
|
|
return err_nomem();
|
|
for (i = 0; i < 256; i++) {
|
|
v = getlistitem(rgb, i);
|
|
if (!is_tupleobject(v) || gettuplesize(v) != 3) {
|
|
DEL(mapp);
|
|
err_badarg();
|
|
return NULL;
|
|
}
|
|
for (j = 0; j < 3; j++) {
|
|
cell = gettupleitem(v, j);
|
|
if (!is_intobject(cell)) {
|
|
DEL(mapp);
|
|
err_badarg();
|
|
return NULL;
|
|
}
|
|
switch (j) {
|
|
case 0: mapp[i].red = getintvalue(cell); break;
|
|
case 1: mapp[i].blue = getintvalue(cell); break;
|
|
case 2: mapp[i].green = getintvalue(cell); break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (svLoadMap(self->ob_svideo, maptype, mapp)) {
|
|
DEL(mapp);
|
|
return sv_error();
|
|
}
|
|
|
|
DEL(mapp);
|
|
|
|
INCREF(None);
|
|
return None;
|
|
}
|
|
|
|
static object *
|
|
sv_CloseVideo(self, args)
|
|
svobject *self;
|
|
object *args;
|
|
{
|
|
if (!getnoarg(args))
|
|
return NULL;
|
|
|
|
if (svCloseVideo(self->ob_svideo))
|
|
return sv_error();
|
|
self->ob_svideo = NULL;
|
|
|
|
INCREF(None);
|
|
return None;
|
|
}
|
|
|
|
static object *
|
|
doParams(self, args, func, modified)
|
|
svobject *self;
|
|
object *args;
|
|
int (*func)(SV_nodeP, long *, int);
|
|
int modified;
|
|
{
|
|
object *list, *v;
|
|
long *PVbuffer;
|
|
long length;
|
|
int i;
|
|
|
|
if (!getargs(args, "O", &list))
|
|
return NULL;
|
|
if (!is_listobject(list)) {
|
|
err_badarg();
|
|
return NULL;
|
|
}
|
|
length = getlistsize(list);
|
|
PVbuffer = NEW(long, length);
|
|
if (PVbuffer == NULL)
|
|
return err_nomem();
|
|
for (i = 0; i < length; i++) {
|
|
v = getlistitem(list, i);
|
|
if (!is_intobject(v)) {
|
|
DEL(PVbuffer);
|
|
err_badarg();
|
|
return NULL;
|
|
}
|
|
PVbuffer[i] = getintvalue(v);
|
|
}
|
|
|
|
if ((*func)(self->ob_svideo, PVbuffer, length)) {
|
|
DEL(PVbuffer);
|
|
return sv_error();
|
|
}
|
|
|
|
if (modified) {
|
|
for (i = 0; i < length; i++)
|
|
setlistitem(list, i, newintobject(PVbuffer[i]));
|
|
}
|
|
|
|
DEL(PVbuffer);
|
|
|
|
INCREF(None);
|
|
return None;
|
|
}
|
|
|
|
static object *
|
|
sv_GetParam(self, args)
|
|
object *self, *args;
|
|
{
|
|
return doParams(self, args, svGetParam, 1);
|
|
}
|
|
|
|
static object *
|
|
sv_GetParamRange(self, args)
|
|
object *self, *args;
|
|
{
|
|
return doParams(self, args, svGetParamRange, 1);
|
|
}
|
|
|
|
static object *
|
|
sv_SetParam(self, args)
|
|
object *self, *args;
|
|
{
|
|
return doParams(self, args, svSetParam, 0);
|
|
}
|
|
|
|
static struct methodlist svideo_methods[] = {
|
|
{"BindGLWindow", (method)sv_BindGLWindow},
|
|
{"EndContinuousCapture",(method)sv_EndContinuousCapture},
|
|
{"IsVideoDisplayed", (method)sv_IsVideoDisplayed},
|
|
{"OutputOffset", (method)sv_OutputOffset},
|
|
{"PutFrame", (method)sv_PutFrame},
|
|
{"QuerySize", (method)sv_QuerySize},
|
|
{"SetSize", (method)sv_SetSize},
|
|
{"SetStdDefaults", (method)sv_SetStdDefaults},
|
|
{"UseExclusive", (method)sv_UseExclusive},
|
|
{"WindowOffset", (method)sv_WindowOffset},
|
|
{"InitContinuousCapture",(method)sv_InitContinuousCapture},
|
|
{"CaptureBurst", (method)sv_CaptureBurst},
|
|
{"CaptureOneFrame", (method)sv_CaptureOneFrame},
|
|
{"GetCaptureData", (method)sv_GetCaptureData},
|
|
{"CloseVideo", (method)sv_CloseVideo},
|
|
{"LoadMap", (method)sv_LoadMap},
|
|
{"GetParam", (method)sv_GetParam},
|
|
{"GetParamRange", (method)sv_GetParamRange},
|
|
{"SetParam", (method)sv_SetParam},
|
|
{NULL, NULL} /* sentinel */
|
|
};
|
|
|
|
static object *
|
|
sv_conversion(self, args, function, inputfactor, factor)
|
|
object *self, *args;
|
|
void (*function)();
|
|
int inputfactor;
|
|
float factor;
|
|
{
|
|
int invert, width, height, inputlength;
|
|
char *input;
|
|
object *output;
|
|
|
|
if (!getargs(args, "(is#ii)", &invert, &input, &inputlength, &width, &height))
|
|
return NULL;
|
|
|
|
if (width * height * inputfactor > inputlength) {
|
|
err_setstr(SvError, "input buffer not long enough");
|
|
return NULL;
|
|
}
|
|
|
|
output = newsizedstringobject(NULL, (int) (width * height * factor));
|
|
if (output == NULL)
|
|
return NULL;
|
|
|
|
(*function)(invert, input, getstringvalue(output), width, height);
|
|
|
|
return output;
|
|
}
|
|
|
|
static object *
|
|
sv_InterleaveFields(self, args)
|
|
object *self, *args;
|
|
{
|
|
return sv_conversion(self, args, svInterleaveFields, 1, 1.0);
|
|
}
|
|
|
|
static object *
|
|
sv_RGB8toRGB32(self, args)
|
|
object *self, *args;
|
|
{
|
|
return sv_conversion(self, args, svRGB8toRGB32, 1, (float) sizeof(long));
|
|
}
|
|
|
|
static object *
|
|
sv_YUVtoRGB(self, args)
|
|
object *self, *args;
|
|
{
|
|
return sv_conversion(self, args, svYUVtoRGB, 2, (float) sizeof(long));
|
|
}
|
|
|
|
static void
|
|
svideo_dealloc(self)
|
|
svobject *self;
|
|
{
|
|
if (self->ob_svideo != NULL)
|
|
(void) svCloseVideo(self->ob_svideo);
|
|
DEL(self);
|
|
}
|
|
|
|
static object *
|
|
svideo_getattr(self, name)
|
|
svobject *self;
|
|
char *name;
|
|
{
|
|
return findmethod(svideo_methods, (object *)self, name);
|
|
}
|
|
|
|
typeobject Svtype = {
|
|
OB_HEAD_INIT(&Typetype)
|
|
0, /*ob_size*/
|
|
"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 object *
|
|
newsvobject(svp)
|
|
SV_nodeP svp;
|
|
{
|
|
svobject *p;
|
|
|
|
p = NEWOBJ(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 (object *) p;
|
|
}
|
|
|
|
static object *
|
|
sv_OpenVideo(self, args)
|
|
object *self, *args;
|
|
{
|
|
SV_nodeP svp;
|
|
|
|
if (!getnoarg(args))
|
|
return NULL;
|
|
|
|
svp = svOpenVideo();
|
|
if (svp == NULL)
|
|
return sv_error();
|
|
|
|
return newsvobject(svp);
|
|
}
|
|
|
|
static struct methodlist sv_methods[] = {
|
|
{"InterleaveFields", (method)sv_InterleaveFields},
|
|
{"RGB8toRGB32", (method)sv_RGB8toRGB32},
|
|
{"YUVtoRGB", (method)sv_YUVtoRGB},
|
|
{"OpenVideo", (method)sv_OpenVideo},
|
|
{NULL, NULL} /* Sentinel */
|
|
};
|
|
|
|
void
|
|
initsv()
|
|
{
|
|
object *m, *d;
|
|
|
|
m = initmodule("sv", sv_methods);
|
|
d = getmoduledict(m);
|
|
|
|
SvError = newstringobject("sv.error");
|
|
if (SvError == NULL || dictinsert(d, "error", SvError) != 0)
|
|
fatal("can't define sv.error");
|
|
}
|