1 files changed, 181 insertions, 0 deletions
diff --git a/libavfilter/libmpcodecs/vf_rectangle.c b/libavfilter/libmpcodecs/vf_rectangle.c
new file mode 100644
index 0000000..21bc209
--- /dev/null
+++ b/libavfilter/libmpcodecs/vf_rectangle.c
@@ -0,0 +1,181 @@
+/*
+ * This file is part of MPlayer.
+ *
+ * MPlayer is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * MPlayer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "mp_image.h"
+#include "mp_msg.h"
+#include "vf.h"
+
+#include "libvo/fastmemcpy.h"
+#include "libavutil/common.h"
+
+struct vf_priv_s {
+    int x, y, w, h;
+};
+
+static int
+config(struct vf_instance *vf,
+       int width, int height, int d_width, int d_height,
+       unsigned int flags, unsigned int outfmt)
+{
+    if (vf->priv->w < 0 || width < vf->priv->w)
+        vf->priv->w = width;
+    if (vf->priv->h < 0 || height < vf->priv->h)
+        vf->priv->h = height;
+    if (vf->priv->x < 0)
+        vf->priv->x = (width - vf->priv->w) / 2;
+    if (vf->priv->y < 0)
+        vf->priv->y = (height - vf->priv->h) / 2;
+    if (vf->priv->w + vf->priv->x > width
+        || vf->priv->h + vf->priv->y > height) {
+        mp_msg(MSGT_VFILTER,MSGL_WARN,"rectangle: bad position/width/height - rectangle area is out of the original!\n");
+        return 0;
+    }
+    return vf_next_config(vf, width, height, d_width, d_height, flags, outfmt);
+}
+
+static int
+control(struct vf_instance *vf, int request, void *data)
+{
+    const int *const tmp = data;
+    switch(request){
+    case VFCTRL_CHANGE_RECTANGLE:
+        switch (tmp[0]){
+        case 0:
+            vf->priv->w += tmp[1];
+            return 1;
+            break;
+        case 1:
+            vf->priv->h += tmp[1];
+            return 1;
+            break;
+        case 2:
+            vf->priv->x += tmp[1];
+            return 1;
+            break;
+        case 3:
+            vf->priv->y += tmp[1];
+            return 1;
+            break;
+        default:
+            mp_msg(MSGT_VFILTER,MSGL_FATAL,"Unknown param %d \n", tmp[0]);
+            return 0;
+        }
+    }
+    return vf_next_control(vf, request, data);
+    return 0;
+}
+static int
+put_image(struct vf_instance *vf, mp_image_t* mpi, double pts){
+    mp_image_t* dmpi;
+    unsigned int bpp = mpi->bpp / 8;
+    int x, y, w, h;
+    dmpi = vf_get_image(vf->next, mpi->imgfmt, MP_IMGTYPE_TEMP,
+                        MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
+                        mpi->w, mpi->h);
+
+    memcpy_pic(dmpi->planes[0],mpi->planes[0],mpi->w*bpp, mpi->h,
+               dmpi->stride[0],mpi->stride[0]);
+    if(mpi->flags&MP_IMGFLAG_PLANAR && mpi->flags&MP_IMGFLAG_YUV){
+        memcpy_pic(dmpi->planes[1],mpi->planes[1],
+                   mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift,
+                   dmpi->stride[1],mpi->stride[1]);
+        memcpy_pic(dmpi->planes[2],mpi->planes[2],
+                   mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift,
+                   dmpi->stride[2],mpi->stride[2]);
+    }
+
+    /* Draw the rectangle */
+
+    mp_msg(MSGT_VFILTER,MSGL_INFO, "rectangle: -vf rectangle=%d:%d:%d:%d \n", vf->priv->w, vf->priv->h, vf->priv->x, vf->priv->y);
+
+    x = FFMIN(vf->priv->x, dmpi->width);
+    x = FFMAX(x, 0);
+
+    w = vf->priv->x + vf->priv->w - 1 - x;
+    w = FFMIN(w, dmpi->width - x);
+    w = FFMAX(w, 0);
+
+    y = FFMIN(vf->priv->y, dmpi->height);
+    y = FFMAX(y, 0);
+
+    h = vf->priv->y + vf->priv->h - 1 - y;
+    h = FFMIN(h, dmpi->height - y);
+    h = FFMAX(h, 0);
+
+    if (0 <= vf->priv->y && vf->priv->y <= dmpi->height) {
+        unsigned char *p = dmpi->planes[0] + y * dmpi->stride[0] + x * bpp;
+        unsigned int count = w * bpp;
+        while (count--)
+            p[count] = 0xff - p[count];
+    }
+    if (h != 1 && vf->priv->y + vf->priv->h - 1 <= mpi->height) {
+        unsigned char *p = dmpi->planes[0] + (vf->priv->y + vf->priv->h - 1) * dmpi->stride[0] + x * bpp;
+        unsigned int count = w * bpp;
+        while (count--)
+            p[count] = 0xff - p[count];
+    }
+    if (0 <= vf->priv->x  && vf->priv->x <= dmpi->width) {
+        unsigned char *p = dmpi->planes[0] + y * dmpi->stride[0] + x * bpp;
+        unsigned int count = h;
+        while (count--) {
+            unsigned int i = bpp;
+            while (i--)
+                p[i] = 0xff - p[i];
+            p += dmpi->stride[0];
+        }
+    }
+    if (w != 1 && vf->priv->x + vf->priv->w - 1 <= mpi->width) {
+        unsigned char *p = dmpi->planes[0] + y * dmpi->stride[0] + (vf->priv->x + vf->priv->w - 1) * bpp;
+        unsigned int count = h;
+        while (count--) {
+            unsigned int i = bpp;
+            while (i--)
+                p[i] = 0xff - p[i];
+            p += dmpi->stride[0];
+        }
+    }
+    return vf_next_put_image(vf, dmpi, pts);
+}
+
+static int
+vf_open(vf_instance_t *vf, char *args) {
+    vf->config = config;
+    vf->control = control;
+    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);
+    return 1;
+}
+
+const vf_info_t vf_info_rectangle = {
+    "draw rectangle",
+    "rectangle",
+    "Kim Minh Kaplan",
+    "",
+    vf_open,
+    NULL
+};