These files used to belong to the "sv" module, which was deleted.

Modules/yuv.h

-
-#ifndef Py_YUV_H
-#define Py_YUV_H
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * SVideo YUV 4:1:1 format.
- *
- * 4 consecutive quadwords describe 8 pixels on 2 lines, as depicted
- * below.  An array of (width/4) of the below structure describes 2
- * scan lines.
- *
- * +-------------------+
- * | 00 | 01 | 02 | 03 | . . .
- * +-------------------+
- * | 10 | 11 | 12 | 13 | . . .
- * +-------------------+
- */
-struct yuv411 {
-	struct {
-		unsigned int dummy:8;
-		unsigned int y0:8;
-		unsigned int u0:2;
-		unsigned int v0:2;
-		unsigned int y1:8;
-		unsigned int u1:2;
-		unsigned int v1:2;
-	} v[4];
-};
-
-#define YUV411_Y00(y)	(y).v[0].y0
-#define YUV411_Y01(y)	(y).v[1].y0
-#define YUV411_Y02(y)	(y).v[2].y0
-#define YUV411_Y03(y)	(y).v[3].y0
-#define YUV411_Y10(y)	(y).v[0].y1
-#define YUV411_Y11(y)	(y).v[1].y1
-#define YUV411_Y12(y)	(y).v[2].y1
-#define YUV411_Y13(y)	(y).v[3].y1
-#define YUV411_U00(y)	((y).v[0].u0<<6|(y).v[1].u0<<4|(y).v[2].u0<<2|(y).v[3].u0)
-#define YUV411_U01(y)	YUV411_U00(y)
-#define YUV411_U02(y)	YUV411_U00(y)
-#define YUV411_U03(y)	YUV411_U00(y)
-#define YUV411_U10(y)	((y).v[0].u1<<6|(y).v[1].u1<<4|(y).v[2].u1<<2|(y).v[3].u1)
-#define YUV411_U11(y)	YUV411_U10(y)
-#define YUV411_U12(y)	YUV411_U10(y)
-#define YUV411_U13(y)	YUV411_U10(y)
-#define YUV411_V00(y)	((y).v[0].v0<<6|(y).v[1].v0<<4|(y).v[2].v0<<2|(y).v[3].v0)
-#define YUV411_V01(y)	YUV411_V00(y)
-#define YUV411_V02(y)	YUV411_V00(y)
-#define YUV411_V03(y)	YUV411_V00(y)
-#define YUV411_V10(y)	((y).v[0].v1<<6|(y).v[1].v1<<4|(y).v[2].v1<<2|(y).v[3].v1)
-#define YUV411_V11(y)	YUV411_V10(y)
-#define YUV411_V12(y)	YUV411_V10(y)
-#define YUV411_V13(y)	YUV411_V10(y)
-
-/*
- * Compression Library YUV 4:2:2 format.
- *
- * 1 longword describes 2 pixels.
- *
- * +-------+
- * | 0 | 1 |
- * +-------+
- */
-struct yuv422 {
-	unsigned int u:8;
-	unsigned int y0:8;
-	unsigned int v:8;
-	unsigned int y1:8;
-};
-#define YUV422_Y0(y)	(y).y0
-#define YUV422_Y1(y)	(y).y1
-#define YUV422_U0(y)	(y).u
-#define YUV422_U1(y)	(y).u
-#define YUV422_V0(y)	(y).v
-#define YUV422_V1(y)	(y).v
-
-/*
- * Compression library YUV 4:2:2 Duplicate Chroma format.
- *
- * This is like the previous format, but the U and V values are
- * duplicated vertically (and hence there is some redundancy in the
- * data).  With other words, lines 2*n and 2*n+1 have the same U and V
- * values but different Y values.
- */
-
-/*
- * Conversion functions.
- */
-void yuv_sv411_to_cl422dc(int, void *, void *, int, int);
-void yuv_sv411_to_cl422dc_quartersize(int, void *, void *, int, int);
-void yuv_sv411_to_cl422dc_sixteenthsize(int, void *, void *, int, int);
-
-#ifdef __cplusplus
-}
-#endif
-#endif /* !Py_YUV_H */

Modules/yuvconvert.c

-
-#include "yuv.h"
-
-void
-yuv_sv411_to_cl422dc(int invert, void *data, void *yuv, int width, int height)
-{
-	struct yuv411 *in = data;
-	struct yuv422 *out_even = yuv;
-	struct yuv422 *out_odd = out_even + width / 2;
-	int i, j;		/* counters */
-
-	for (i = height / 2; i--; ) {
-		for (j = width / 4; j--; ) {
-			YUV422_Y0(*out_even) = YUV411_Y00(*in);
-			YUV422_U0(*out_even) = YUV411_U00(*in);
-			YUV422_V0(*out_even) = YUV411_V00(*in);
-			YUV422_Y1(*out_even) = YUV411_Y01(*in);
-			out_even++;
-			YUV422_Y0(*out_even) = YUV411_Y02(*in);
-			YUV422_U0(*out_even) = YUV411_U02(*in);
-			YUV422_V0(*out_even) = YUV411_V02(*in);
-			YUV422_Y1(*out_even) = YUV411_Y03(*in);
-			out_even++;
-			YUV422_Y0(*out_odd) = YUV411_Y10(*in);
-			YUV422_U0(*out_odd) = YUV411_U10(*in);
-			YUV422_V0(*out_odd) = YUV411_V10(*in);
-			YUV422_Y1(*out_odd) = YUV411_Y11(*in);
-			out_odd++;
-			YUV422_Y0(*out_odd) = YUV411_Y12(*in);
-			YUV422_U0(*out_odd) = YUV411_U12(*in);
-			YUV422_V0(*out_odd) = YUV411_V12(*in);
-			YUV422_Y1(*out_odd) = YUV411_Y13(*in);
-			out_odd++;
-			in++;
-		}
-		out_even += width / 2;
-		out_odd += width / 2;
-	}
-}
-
-void
-yuv_sv411_to_cl422dc_quartersize(int invert, void *data, void *yuv,
-				 int width, int height)
-{
-	int w4 = width / 4;	/* quarter of width is used often */
-	struct yuv411 *in_even = data;
-	struct yuv411 *in_odd = in_even + w4;
-	struct yuv422 *out_even = yuv;
-	struct yuv422 *out_odd = out_even + w4;
-	int i, j;		/* counters */
-	int u, v;		/* U and V values */
-
-	for (i = height / 4; i--; ) {
-		for (j = w4; j--; ) {
-			u = YUV411_U00(*in_even);
-			v = YUV411_V00(*in_even);
-
-			YUV422_Y0(*out_even) = YUV411_Y00(*in_even);
-			YUV422_U0(*out_even) = u;
-			YUV422_V0(*out_even) = v;
-			YUV422_Y1(*out_even) = YUV411_Y02(*in_even);
-
-			YUV422_Y0(*out_odd) = YUV411_Y10(*in_odd);
-			YUV422_U0(*out_odd) = u;
-			YUV422_V0(*out_odd) = v;
-			YUV422_Y1(*out_odd) = YUV411_Y12(*in_odd);
-
-			in_even++;
-			in_odd++;
-			out_even++;
-			out_odd++;
-		}
-		in_even += w4;
-		in_odd += w4;
-		out_even += w4;
-		out_odd += w4;
-	}
-}
-
-void
-yuv_sv411_to_cl422dc_sixteenthsize(int invert, void *data, void *yuv,
-				   int width, int height)
-{
-	int w4_3 = 3 * width / 4; /* three quarters of width is used often */
-	int w8 = width / 8;	/* and so is one eighth */
-	struct yuv411 *in_even = data;
-	struct yuv411 *in_odd = in_even + width / 2;
-	struct yuv422 *out_even = yuv;
-	struct yuv422 *out_odd = out_even + w8;
-	int i, j;		/* counters */
-	int u, v;		/* U and V values */
-
-	for (i = height / 8; i--; ) {
-		for (j = w8; j--; ) {
-			u = YUV411_U00(in_even[0]);
-			v = YUV411_V00(in_even[0]);
-
-			YUV422_Y0(*out_even) = YUV411_Y00(in_even[0]);
-			YUV422_U0(*out_even) = u;
-			YUV422_V0(*out_even) = v;
-			YUV422_Y1(*out_even) = YUV411_Y00(in_even[1]);
-
-			YUV422_Y0(*out_odd) = YUV411_Y00(in_odd[0]);
-			YUV422_U0(*out_odd) = u;
-			YUV422_V0(*out_odd) = v;
-			YUV422_Y1(*out_odd) = YUV411_Y00(in_even[1]);
-
-			in_even += 2;
-			in_odd += 2;
-			out_even++;
-			out_odd++;
-		}
-		in_even += w4_3;
-		in_odd += w4_3;
-		out_even += w8;
-		out_odd += w8;
-	}
-}