New plugin to test crop parameters. Arguments are the same as for the

crop plugin.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6821 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 97 insertions, 0 deletions

diff --git a/libmpcodecs/vf_rectangle.c b/libmpcodecs/vf_rectangle.c
new file mode 100644
index 0000000000..b55b2e7cf2
--- /dev/null
+++ b/libmpcodecs/vf_rectangle.c
@@ -0,0 +1,97 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "mp_image.h"
+#include "vf.h"
+
+struct vf_priv_s {
+    int x, y, w, h;
+};
+
+static void
+put_image(struct vf_instance_s* vf, mp_image_t* mpi){
+    mp_image_t* dmpi;
+    int x, y, w, h;
+    unsigned int bpp, count;
+    unsigned char *p1, *p2;
+    dmpi = vf_get_image(vf->next, mpi->imgfmt, MP_IMGTYPE_TEMP, 0, mpi->w, mpi->h);
+    bpp = dmpi->bpp / 8;
+    memcpy(dmpi->planes[0], mpi->planes[0], dmpi->stride[0] * bpp * mpi->height);
+    memcpy(dmpi->planes[1], mpi->planes[1], dmpi->stride[1] * mpi->chroma_height);
+    memcpy(dmpi->planes[2], mpi->planes[2], dmpi->stride[2] * mpi->chroma_height);
+
+    /* Draw the rectangle */
+    x = vf->priv->x;
+    if (x < 0)
+	x = 0;
+    y = vf->priv->y;
+    if (y < 0)
+	y = 0;
+    w = vf->priv->w;
+    if (w < 0)
+	w = dmpi->w - x;
+    h = vf->priv->h;
+    if (h < 0)
+	h = dmpi->h - y;
+    count = w * bpp;
+    p1 = dmpi->planes[0] + y * dmpi->stride[0] + x * bpp;
+    if (h == 1)
+	while (count--) {
+	    *p1 = 0xff - *p1;
+	    ++p1;
+	}
+    else {
+	p2 = p1 + (h - 1) * dmpi->stride[0];
+	while (count--) {
+	    *p1 = 0xff - *p1;
+	    ++p1;
+	    *p2 = 0xff - *p2;
+	    ++p2;
+	}
+    }
+    count = h;
+    p1 = dmpi->planes[0] + y * dmpi->stride[0] + x * bpp;
+    if (w == 1)
+	while (count--) {
+	    int i = bpp;
+	    while (i--)
+		p1[i] ^= 0xff;
+	    p1 += dmpi->stride[0];
+	}
+    else {
+	p2 = p1 + (w - 1) * bpp;
+	while (count--) {
+	    int i = bpp;
+	    while (i--) {
+		p1[i] = 0xff - p1[i];
+		p2[i] = 0xff - p2[i];
+	    }
+	    p1 += dmpi->stride[0];
+	    p2 += dmpi->stride[0];
+	}
+    }
+    vf_next_put_image(vf, dmpi);
+}
+
+static int
+open(vf_instance_t* vf, char* args) {
+    vf->put_image = put_image;
+    vf->priv = malloc(sizeof(struct vf_priv_s));
+    vf->priv->x = -1;
+    vf->priv->y = -1;
+    vf->priv->w = -1;
+    vf->priv->h = -1;
+    if (args)
+	sscanf(args, "%d:%d:%d:%d", 
+	       &vf->priv->w, &vf->priv->h, &vf->priv->x, &vf->priv->y);
+    printf("Crop: %d x %d, %d ; %d\n",
+	   vf->priv->w, vf->priv->h, vf->priv->x, vf->priv->y);
+    return 1;
+}
+
+vf_info_t vf_info_rectangle = {
+    "draw rectangle",
+    "rectangle",
+    "Kim Minh Kaplan",
+    "",
+    open
+};