0, -19, 252, 2918,
};
+static const gint cog_identity_matrix_8bit[] = {
+ 256, 0, 0, 0,
+ 0, 256, 0, 0,
+ 0, 0, 256, 0,
+};
+
#define APPLY_MATRIX(m,o,v1,v2,v3) ((m[o*4] * v1 + m[o*4+1] * v2 + m[o*4+2] * v3 + m[o*4+3]) >> 8)
static void
gint w, gint h)
{
gint i, j;
- guint8 *destY, *destU, *destV;
+ guint8 *destY, *destY2, *destU, *destV;
gint dest_strideY, dest_strideUV;
- gint widthY, widthUV;
- gint hY, hUV;
+ const guint8 *src2;
+ gint src_stride;
+ gint y_idx, uv_idx;
+ gint y1, y2, y3, y4;
+ gint u1, u2, u3, u4;
+ gint v1, v2, v3, v4;
+ gint matrix[12];
dest_strideY = gst_video_format_get_row_stride (dest_format, 0, dest_width);
dest_strideUV = gst_video_format_get_row_stride (dest_format, 1, dest_width);
+ src_stride = 4 * src_width;
+
destY =
dest + gst_video_format_get_component_offset (dest_format, 0,
dest_width, dest_height);
dest_width, dest_height);
destY = destY + dest_y * dest_strideY + dest_x;
+ destY2 = (dest_y < dest_height) ? destY + dest_strideY : destY;
destU = destU + (dest_y / 2) * dest_strideUV + dest_x / 2;
destV = destV + (dest_y / 2) * dest_strideUV + dest_x / 2;
- src = src + src_y * src_width * 4 + src_x * 4;
-
- widthY = w;
- widthUV = w / 2;
-
- hY = h;
- hUV = h / 2;
-
- if (src_sdtv != dest_sdtv) {
- gint matrix[12];
- gint y1, y2, y3, y4;
- gint u1, u2, u3, u4;
- gint v1, v2, v3, v4;
- guint8 *destY2 = destY + dest_strideY;
- const guint8 *src2 = src + src_width * 4;
+ src = src + src_y * src_stride + src_x * 4;
+ src2 = (src_y < src_height) ? src + src_stride : src;
- dest_strideY *= 2;
+ h = dest_y + h;
+ w = dest_x + w;
+ if (src_sdtv != dest_sdtv)
memcpy (matrix,
dest_sdtv ? cog_ycbcr_hdtv_to_ycbcr_sdtv_matrix_8bit :
cog_ycbcr_sdtv_to_ycbcr_hdtv_matrix_8bit, 12 * sizeof (gint));
+ else
+ memcpy (matrix, cog_identity_matrix_8bit, 12 * sizeof (gint));
+
+ /* 1. Handle the first destination scanline specially if it
+ * doesn't start at the macro pixel boundary, i.e. blend
+ * with the background! */
+ if (dest_y % 2 == 1) {
+ /* 1.1. Handle the first destination pixel if it doesn't
+ * start at the macro pixel boundary, i.e. blend with
+ * the background! */
+ if (dest_x % 2 == 1) {
+ y1 = src[4 * 0 + 1];
+ u1 = src[4 * 0 + 2];
+ v1 = src[4 * 0 + 3];
+
+ destY[0] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destU[0] =
+ CLAMP ((3 * destU[0] + APPLY_MATRIX (matrix, 1, y1, u1, v1)) / 4, 0,
+ 255);
+ destV[0] =
+ CLAMP ((3 * destV[0] + APPLY_MATRIX (matrix, 2, y1, u1, v1)) / 4, 0,
+ 255);
+
+ j = dest_x + 1;
+ y_idx = uv_idx = 1;
+ } else {
+ j = dest_x;
+ y_idx = uv_idx = 0;
+ }
- for (i = 0; i < hUV; i++) {
- if (i * 2 == hY) {
- destY2 = destY;
- }
+ /* 1.2. Copy all macro pixels from the source to the destination
+ * but blend with the background because we're only filling
+ * the lower part of the macro pixels. */
+ for (; j < w - 1; j += 2) {
+ y1 = src[4 * y_idx + 1];
+ y2 = src[4 * y_idx + 4 + 1];
+
+ u1 = src[4 * y_idx + 2];
+ u2 = src[4 * y_idx + 4 + 2];
+
+ v1 = src[4 * y_idx + 3];
+ v2 = src[4 * y_idx + 4 + 3];
+
+ destY[y_idx] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destY[y_idx + 1] = CLAMP (APPLY_MATRIX (matrix, 0, y2, u2, v2), 0, 255);
+ destU[uv_idx] = CLAMP (
+ (2 * destU[uv_idx] + APPLY_MATRIX (matrix, 1, y1, u1,
+ v1) + APPLY_MATRIX (matrix, 1, y2, u2, v2)) / 4, 0, 255);
+ destV[uv_idx] = CLAMP (
+ (2 * destV[uv_idx] + APPLY_MATRIX (matrix, 2, y1, u1,
+ v1) + APPLY_MATRIX (matrix, 2, y2, u2, v2)) / 4, 0, 255);
+
+ y_idx += 2;
+ uv_idx++;
+ }
- for (j = 0; j < widthUV; j++) {
- y1 = src[8 * j + 1];
- u1 = src[8 * j + 2];
- v1 = src[8 * j + 3];
- y2 = src[8 * j + 5];
- u2 = src[8 * j + 6];
- v2 = src[8 * j + 7];
-
- if (j * 2 < widthY) {
- y3 = src2[8 * j + 1];
- u3 = src2[8 * j + 2];
- v3 = src2[8 * j + 3];
- y4 = src2[8 * j + 5];
- u4 = src2[8 * j + 6];
- v4 = src2[8 * j + 7];
- } else {
- y3 = y1;
- u3 = u1;
- v3 = v1;
- y4 = y2;
- u4 = u2;
- v4 = v2;
- }
+ /* 1.3. Now copy the last pixel if one exists and blend it
+ * with the background because we only fill part of
+ * the macro pixel. In case this is the last pixel of
+ * the destination we will a larger part. */
+ if (j == w - 1 && j == dest_width - 1) {
+ y1 = src[4 * y_idx + 1];
+ u1 = src[4 * y_idx + 2];
+ v1 = src[4 * y_idx + 3];
+
+ destY[y_idx] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destU[uv_idx] = CLAMP (
+ (destU[uv_idx] + APPLY_MATRIX (matrix, 1, y1, u1, v1)) / 2, 0, 255);
+ destV[uv_idx] = CLAMP (
+ (destV[uv_idx] + APPLY_MATRIX (matrix, 2, y1, u1, v1)) / 2, 0, 255);
+ } else if (j == w - 1) {
+ y1 = src[4 * y_idx + 1];
+ u1 = src[4 * y_idx + 2];
+ v1 = src[4 * y_idx + 3];
+
+ destY[y_idx] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destU[uv_idx] = CLAMP (
+ (3 * destU[uv_idx] + APPLY_MATRIX (matrix, 1, y1, u1, v1)) / 4, 0,
+ 255);
+ destV[uv_idx] =
+ CLAMP ((3 * destV[uv_idx] + APPLY_MATRIX (matrix, 2, y1, u1, v1)) / 4,
+ 0, 255);
+ }
- y1 = APPLY_MATRIX (matrix, 0, y1, u1, v1);
- u1 = APPLY_MATRIX (matrix, 1, y1, u1, v1);
- v1 = APPLY_MATRIX (matrix, 2, y1, u1, v1);
+ destY += dest_strideY;
+ destY2 += dest_strideY;
+ destU += dest_strideUV;
+ destV += dest_strideUV;
+ src += src_stride;
+ src2 += src_stride;
+ i = dest_y + 1;
+ } else {
+ i = dest_y;
+ }
- y3 = APPLY_MATRIX (matrix, 0, y3, u3, v3);
- u3 = APPLY_MATRIX (matrix, 1, y3, u3, v3);
- v3 = APPLY_MATRIX (matrix, 2, y3, u3, v3);
+ /* 2. Copy all macro pixel scanlines, the destination scanline
+ * now starts at macro pixel boundary. */
+ for (; i < h - 1; i += 2) {
+ /* 2.1. Handle the first destination pixel if it doesn't
+ * start at the macro pixel boundary, i.e. blend with
+ * the background! */
+ if (dest_x % 2 == 1) {
+ y1 = src[4 * 0 + 1];
+ y2 = src2[4 * 0 + 1];
+ u1 = src[4 * 0 + 2];
+ u2 = src2[4 * 0 + 2];
+ v1 = src[4 * 0 + 3];
+ v2 = src2[4 * 0 + 3];
+
+ destY[0] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destY2[0] = CLAMP (APPLY_MATRIX (matrix, 0, y2, u2, v2), 0, 255);
+ destU[0] = CLAMP (
+ (2 * destU[0] + APPLY_MATRIX (matrix, 1, y1, u1,
+ v1) + APPLY_MATRIX (matrix, 1, y2, u2, v2)) / 4, 0, 255);
+ destV[0] = CLAMP (
+ (2 * destV[0] + APPLY_MATRIX (matrix, 2, y1, u1,
+ v1) + APPLY_MATRIX (matrix, 2, y2, u2, v2)) / 4, 0, 255);
+ j = dest_x + 1;
+ y_idx = uv_idx = 1;
+ } else {
+ j = dest_x;
+ y_idx = uv_idx = 0;
+ }
- if (j * 2 < widthY) {
- y2 = APPLY_MATRIX (matrix, 0, y2, u2, v2);
- u2 = APPLY_MATRIX (matrix, 1, y2, u2, v2);
- v2 = APPLY_MATRIX (matrix, 2, y2, u2, v2);
-
- y4 = APPLY_MATRIX (matrix, 0, y4, u4, v4);
- u4 = APPLY_MATRIX (matrix, 1, y4, u4, v4);
- v4 = APPLY_MATRIX (matrix, 2, y4, u4, v4);
- } else {
- u2 = u1;
- v2 = v1;
- u4 = u3;
- v4 = v3;
- }
+ /* 2.2. Copy all macro pixels from the source to the destination.
+ * All pixels now start at macro pixel boundary, i.e. no
+ * blending with the background is necessary. */
+ for (; j < w - 1; j += 2) {
+ y1 = src[4 * y_idx + 1];
+ y2 = src[4 * y_idx + 4 + 1];
+ y3 = src2[4 * y_idx + 1];
+ y4 = src2[4 * y_idx + 4 + 1];
+
+ u1 = src[4 * y_idx + 2];
+ u2 = src[4 * y_idx + 4 + 2];
+ u3 = src2[4 * y_idx + 2];
+ u4 = src2[4 * y_idx + 4 + 2];
+
+ v1 = src[4 * y_idx + 3];
+ v2 = src[4 * y_idx + 4 + 3];
+ v3 = src2[4 * y_idx + 3];
+ v4 = src2[4 * y_idx + 4 + 3];
+
+ destY[y_idx] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destY[y_idx + 1] = CLAMP (APPLY_MATRIX (matrix, 0, y2, u2, v2), 0, 255);
+ destY2[y_idx] = CLAMP (APPLY_MATRIX (matrix, 0, y3, u3, v3), 0, 255);
+ destY2[y_idx + 1] = CLAMP (APPLY_MATRIX (matrix, 0, y4, u4, v4), 0, 255);
+
+ destU[uv_idx] = CLAMP (
+ (APPLY_MATRIX (matrix, 1, y1, u1, v1) + APPLY_MATRIX (matrix, 1, y2,
+ u2, v2) + APPLY_MATRIX (matrix, 1, y3, u3,
+ v3) + APPLY_MATRIX (matrix, 1, y4, u4, v4)) / 4, 0, 255);
+ destV[uv_idx] = CLAMP (
+ (APPLY_MATRIX (matrix, 2, y1, u1, v1) + APPLY_MATRIX (matrix, 2, y2,
+ u2, v2) + APPLY_MATRIX (matrix, 2, y3, u3,
+ v3) + APPLY_MATRIX (matrix, 2, y4, u4, v4)) / 4, 0, 255);
+
+ y_idx += 2;
+ uv_idx++;
+ }
- destY[2 * j] = y1;
- destY2[2 * j] = y3;
- if (j * 2 < widthY) {
- destY[2 * j + 1] = y2;
- destY2[2 * j + 1] = y4;
- }
+ /* 2.3. Now copy the last pixel if one exists and blend it
+ * with the background because we only fill part of
+ * the macro pixel. In case this is the last pixel of
+ * the destination we will a larger part. */
+ if (j == w - 1 && j == dest_width - 1) {
+ y1 = src[4 * y_idx + 1];
+ y2 = src2[4 * y_idx + 1];
+
+ u1 = src[4 * y_idx + 2];
+ u2 = src2[4 * y_idx + 2];
+
+ v1 = src[4 * y_idx + 3];
+ v2 = src2[4 * y_idx + 3];
+
+ destY[y_idx] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destY2[y_idx] = CLAMP (APPLY_MATRIX (matrix, 0, y2, u2, v2), 0, 255);
+ destU[uv_idx] = CLAMP (
+ (APPLY_MATRIX (matrix, 1, y1, u1, v1) + APPLY_MATRIX (matrix, 2, y2,
+ u2, v2)) / 2, 0, 255);
+ destV[uv_idx] = CLAMP (
+ (APPLY_MATRIX (matrix, 1, y1, u1, v1) + APPLY_MATRIX (matrix, 2, y2,
+ u2, v2)) / 2, 0, 255);
+ } else if (j == w - 1) {
+ y1 = src[4 * y_idx + 1];
+ y2 = src2[4 * y_idx + 1];
+
+ u1 = src[4 * y_idx + 2];
+ u2 = src2[4 * y_idx + 2];
+
+ v1 = src[4 * y_idx + 3];
+ v2 = src2[4 * y_idx + 3];
+
+ destY[y_idx] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destY2[y_idx] = CLAMP (APPLY_MATRIX (matrix, 0, y2, u2, v2), 0, 255);
+ destU[uv_idx] = CLAMP (
+ (2 * destU[uv_idx] + APPLY_MATRIX (matrix, 1, y1, u1,
+ v1) + APPLY_MATRIX (matrix, 2, y2, u2, v2)) / 4, 0, 255);
+ destV[uv_idx] = CLAMP (
+ (2 * destV[uv_idx] + APPLY_MATRIX (matrix, 1, y1, u1,
+ v1) + APPLY_MATRIX (matrix, 2, y2, u2, v2)) / 4, 0, 255);
+ }
- destU[j] = (u1 + u2 + u3 + u4) / 4;
- destV[j] = (v1 + v2 + v3 + v4) / 4;
- }
- src += src_width * 8;
- destY += dest_strideY;
- src2 += src_width * 8;
- destY2 += dest_strideY;
+ destY += 2 * dest_strideY;
+ destY2 += 2 * dest_strideY;
+ destU += dest_strideUV;
+ destV += dest_strideUV;
+ src += 2 * src_stride;
+ src2 += 2 * src_stride;
+ }
- destU += dest_strideUV;
- destV += dest_strideUV;
+ /* 3. Handle the last scanline if one exists. This again
+ * doesn't start at macro pixel boundary but should
+ * only fill the upper part of the macro pixels. */
+ if (i == h - 1 && i == dest_height - 1) {
+ /* 3.1. Handle the first destination pixel if it doesn't
+ * start at the macro pixel boundary, i.e. blend with
+ * the background! */
+ if (dest_x % 2 == 1) {
+ y1 = src[4 * 0 + 1];
+ u1 = src[4 * 0 + 2];
+ v1 = src[4 * 0 + 3];
+
+ destY[0] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destU[0] =
+ CLAMP ((destU[0] + APPLY_MATRIX (matrix, 1, y1, u1, v1)) / 2, 0, 255);
+ destV[0] =
+ CLAMP ((destV[0] + APPLY_MATRIX (matrix, 2, y1, u1, v1)) / 2, 0, 255);
+
+ j = dest_x + 1;
+ y_idx = uv_idx = 1;
+ } else {
+ j = dest_x;
+ y_idx = uv_idx = 0;
}
- } else {
- gint y1, y2, y3, y4;
- gint u1, u2, u3, u4;
- gint v1, v2, v3, v4;
- guint8 *destY2 = destY + dest_strideY;
- const guint8 *src2 = src + src_width * 4;
- dest_strideY *= 2;
+ /* 3.2. Copy all macro pixels from the source to the destination
+ * but blend with the background because we're only filling
+ * the upper part of the macro pixels. */
+ for (; j < w - 1; j += 2) {
+ y1 = src[4 * y_idx + 1];
+ y2 = src[4 * y_idx + 4 + 1];
- for (i = 0; i < hUV; i++) {
- if (i * 2 == hY) {
- destY2 = destY;
- }
+ u1 = src[4 * y_idx + 2];
+ u2 = src[4 * y_idx + 4 + 2];
- for (j = 0; j < widthUV; j++) {
- y1 = src[8 * j + 1];
- u1 = src[8 * j + 2];
- v1 = src[8 * j + 3];
- y2 = src[8 * j + 5];
- u2 = src[8 * j + 6];
- v2 = src[8 * j + 7];
-
- if (j * 2 < widthY) {
- y3 = src2[8 * j + 1];
- u3 = src2[8 * j + 2];
- v3 = src2[8 * j + 3];
- y4 = src2[8 * j + 5];
- u4 = src2[8 * j + 6];
- v4 = src2[8 * j + 7];
- } else {
- y3 = y1;
- u3 = u1;
- v3 = v1;
- y4 = y2;
- u4 = u2;
- v4 = v2;
- }
+ v1 = src[4 * y_idx + 3];
+ v2 = src[4 * y_idx + 4 + 3];
- destY[2 * j] = y1;
- destY2[2 * j] = y3;
- if (j * 2 < widthY) {
- destY[2 * j + 1] = y2;
- destY2[2 * j + 1] = y4;
- }
+ destY[y_idx] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destY[y_idx + 1] = CLAMP (APPLY_MATRIX (matrix, 0, y2, u2, v2), 0, 255);
- destU[j] = (u1 + u2 + u3 + u4) / 4;
- destV[j] = (v1 + v2 + v3 + v4) / 4;
- }
- src += src_width * 8;
- destY += dest_strideY;
- src2 += src_width * 8;
- destY2 += dest_strideY;
+ destU[uv_idx] = CLAMP (
+ (2 * destU[uv_idx] + APPLY_MATRIX (matrix, 1, y1, u1,
+ v1) + APPLY_MATRIX (matrix, 1, y2, u2, v2)) / 4, 0, 255);
+ destV[uv_idx] = CLAMP (
+ (2 * destV[uv_idx] + APPLY_MATRIX (matrix, 2, y1, u1,
+ v1) + APPLY_MATRIX (matrix, 2, y2, u2, v2)) / 4, 0, 255);
- destU += dest_strideUV;
- destV += dest_strideUV;
+ y_idx += 2;
+ uv_idx++;
+ }
+
+ /* 3.3. Now copy the last pixel if one exists and blend it
+ * with the background because we only fill part of
+ * the macro pixel. In case this is the last pixel of
+ * the destination we will a larger part. */
+ if (j == w - 1 && j == dest_width - 1) {
+ y1 = src[4 * y_idx + 1];
+ u1 = src[4 * y_idx + 2];
+ v1 = src[4 * y_idx + 3];
+
+ destY[y_idx] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destU[uv_idx] = CLAMP (
+ (destU[uv_idx] + APPLY_MATRIX (matrix, 1, y1, u1, v1)) / 2, 0, 255);
+ destV[uv_idx] = CLAMP (
+ (destV[uv_idx] + APPLY_MATRIX (matrix, 1, y1, u1, v1)) / 2, 0, 255);
+ } else if (j == w - 1) {
+ y1 = src[4 * y_idx + 1];
+ u1 = src[4 * y_idx + 2];
+ v1 = src[4 * y_idx + 3];
+
+ destY[y_idx] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destU[uv_idx] = CLAMP (
+ (3 * destU[uv_idx] + APPLY_MATRIX (matrix, 1, y1, u1, v1)) / 4, 0,
+ 255);
+ destV[uv_idx] =
+ CLAMP ((3 * destV[uv_idx] + APPLY_MATRIX (matrix, 1, y1, u1, v1)) / 4,
+ 0, 255);
+ }
+ } else if (i == h - 1) {
+ /* 3.1. Handle the first destination pixel if it doesn't
+ * start at the macro pixel boundary, i.e. blend with
+ * the background! */
+ if (dest_x % 2 == 1) {
+ y1 = src[4 * 0 + 1];
+ u1 = src[4 * 0 + 2];
+ v1 = src[4 * 0 + 3];
+
+ destY[0] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destU[0] =
+ CLAMP ((3 * destU[0] + APPLY_MATRIX (matrix, 1, y1, u1, v1)) / 4, 0,
+ 255);
+ destV[0] =
+ CLAMP ((3 * destV[0] + APPLY_MATRIX (matrix, 2, y1, u1, v1)) / 4, 0,
+ 255);
+
+ j = dest_x + 1;
+ y_idx = uv_idx = 1;
+ } else {
+ j = dest_x;
+ y_idx = uv_idx = 0;
+ }
+
+ /* 3.2. Copy all macro pixels from the source to the destination
+ * but blend with the background because we're only filling
+ * the upper part of the macro pixels. */
+ for (; j < w - 1; j += 2) {
+ y1 = src[4 * y_idx + 1];
+ y2 = src[4 * y_idx + 4 + 1];
+
+ u1 = src[4 * y_idx + 2];
+ u2 = src[4 * y_idx + 4 + 2];
+
+ v1 = src[4 * y_idx + 3];
+ v2 = src[4 * y_idx + 4 + 3];
+
+ destY[y_idx] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destY[y_idx + 1] = CLAMP (APPLY_MATRIX (matrix, 0, y2, u2, v2), 0, 255);
+
+ destU[uv_idx] = CLAMP (
+ (2 * destU[uv_idx] + APPLY_MATRIX (matrix, 1, y1, u1,
+ v1) + APPLY_MATRIX (matrix, 1, y2, u2, v2)) / 4, 0, 255);
+ destV[uv_idx] = CLAMP (
+ (2 * destV[uv_idx] + APPLY_MATRIX (matrix, 2, y1, u1,
+ v1) + APPLY_MATRIX (matrix, 2, y2, u2, v2)) / 4, 0, 255);
+
+ y_idx += 2;
+ uv_idx++;
+ }
+
+ /* 3.3. Now copy the last pixel if one exists and blend it
+ * with the background because we only fill part of
+ * the macro pixel. In case this is the last pixel of
+ * the destination we will a larger part. */
+ if (j == w - 1 && j == dest_width - 1) {
+ y1 = src[4 * y_idx + 1];
+ u1 = src[4 * y_idx + 2];
+ v1 = src[4 * y_idx + 3];
+
+ destY[y_idx] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destU[uv_idx] = CLAMP (
+ (destU[uv_idx] + APPLY_MATRIX (matrix, 1, y1, u1, v1)) / 2, 0, 255);
+ destV[uv_idx] = CLAMP (
+ (destV[uv_idx] + APPLY_MATRIX (matrix, 1, y1, u1, v1)) / 2, 0, 255);
+ } else if (j == w - 1) {
+ y1 = src[4 * y_idx + 1];
+ u1 = src[4 * y_idx + 2];
+ v1 = src[4 * y_idx + 3];
+
+ destY[y_idx] = CLAMP (APPLY_MATRIX (matrix, 0, y1, u1, v1), 0, 255);
+ destU[uv_idx] = CLAMP (
+ (3 * destU[uv_idx] + APPLY_MATRIX (matrix, 1, y1, u1, v1)) / 4, 0,
+ 255);
+ destV[uv_idx] =
+ CLAMP ((3 * destV[uv_idx] + APPLY_MATRIX (matrix, 1, y1, u1, v1)) / 4,
+ 0, 255);
}
}
}
const guint8 *srcY, *srcU, *srcV;
gint src_strideY, src_strideUV;
gint dest_stride;
- gint widthY, widthUV;
- gint hY, hUV;
src_strideY =
gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420, 0, src_width);
srcU = srcU + (src_y / 2) * src_strideUV + src_x / 2;
srcV = srcV + (src_y / 2) * src_strideUV + src_x / 2;
- widthY = w;
- widthUV = (w + 1) / 2;
-
- hY = h;
- hUV = (h + 1) / 2;
-
i_alpha = CLAMP (i_alpha, 0, 255);
if (src_sdtv != dest_sdtv) {
projects / platform / upstream / gstreamer.git / commitdiff