2 new filters: tile & framestep

patch by Daniele Forghieri ( guru@digitalfantasy.it )
(little cleanup by me)


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@10752 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 314 insertions, 0 deletions

diff --git a/libmpcodecs/vf_tile.c b/libmpcodecs/vf_tile.c
new file mode 100644
index 0000000000..ef9c2fcda1
--- /dev/null
+++ b/libmpcodecs/vf_tile.c
@@ -0,0 +1,314 @@
+/*
+ * vf_tile.c - filter to tile a serie of image in a single, bigger, image
+ *
+ * The parameters are:
+ *
+ *    xtile:  number of tile on the x axis (5)
+ *    ytile:  number of tile on the y axis (5)
+ *    xytile: when write the image, it can be different then xtile * ytile
+ *            (for example you can write 8 * 7 tile, writing the file every
+ *            50 frame, to have one image every 2 seconds @ 25 fps ).
+ *    start:  pixel at the start (x/y), default 2
+ *    delta:  pixel between 2 tile, (x/y), default 4
+ *
+ * For example a valid command line is:
+ *    ... -vf tile=10:5:-1:4:8 ...
+ * that make images of 10 * 5 tiles, with 4 pixel at the beginning and
+ * 8 pixel between tiles.
+ *
+ * The default command is:
+ *    ... -vf tile=5:5:25:2:4
+ *
+ * If you omit a parameter or put a value less then 0, the default is used.
+ *    ... -vf tile=10:5::-1:10
+ *
+ * You can also stop when you're ok
+ *    ... -vf tile=10:5
+ * (and this is probably the option you will use more often ...)
+ *
+ * Probably is good to put the scale filter before the tile :-)
+ *
+ *     Daniele Forghieri ( guru@digitalfantasy.it )
+ */
+
+// strtoi memcpy_pic
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../config.h"
+#include "../mp_msg.h"
+#include "../cpudetect.h"
+
+#include "img_format.h"
+#include "mp_image.h"
+#include "vf.h"
+
+#include "../libvo/fastmemcpy.h"
+
+/* external */
+extern int verbose;
+
+/* private data */
+struct vf_priv_s {
+    /* configuration data */
+    /* Number on hor/ver tiles */
+    int  xtile;
+    int  ytile;
+    /* When write the whole frame (default = xtile * ytile) */
+    int  xytile;
+    /* pixel at start / end (default = 4) */
+    int  start;
+    /* pixel between image (default = 2) */
+    int  delta;
+//    /* Background color, in destination format */
+//    int  bkgSet;
+
+    /* Work data */
+    int  frame_cur;
+};
+
+
+static int config(struct vf_instance_s* vf,
+                  int width, int height, int d_width, int d_height,
+	          unsigned int flags, unsigned int outfmt){
+
+    struct vf_priv_s  *priv;
+    int               xw;
+    int               yh;
+
+    /* Calculate new destination size */
+    priv = vf->priv;
+    xw = priv->start * 2 +
+        priv->xtile * width +
+        (priv->xtile - 1) * priv->delta;
+    yh = priv->start * 2 +
+        priv->ytile * height +
+        (priv->ytile - 1) * priv->delta;
+
+    mp_msg(MSGT_VFILTER,MSGL_V,"vf_tile:config size set to %d * %d\n", xw, yh);
+
+    return vf_next_config(vf, xw, yh, xw, yh, flags, outfmt);
+}
+
+/* Filter handler */
+static int put_image(struct vf_instance_s* vf, mp_image_t *mpi)
+{
+    mp_image_t        *dmpi;
+    struct vf_priv_s  *priv;
+    int               t;
+    int               xw;
+    int               yh;
+    int               xi;
+    int               yi;
+    int               by;
+    int               dw;
+
+    /* Calculate new size */
+    priv = vf->priv;
+    xw = priv->start * 2 +
+        priv->xtile * mpi->w +
+        (priv->xtile - 1) * priv->delta;
+    yh = priv->start * 2 +
+        priv->ytile * mpi->h+
+        (priv->ytile - 1) * priv->delta;
+
+    /* Get the big image! */
+    dmpi=vf_get_image(vf->next, mpi->imgfmt,
+                      MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE,
+                      xw, yh);
+
+    /* bytes x pixel & bytes x line */
+    if (mpi->flags & MP_IMGFLAG_PLANAR) {
+        by = 1;
+        dw = mpi->w;
+    }
+    else {
+        by = (mpi->bpp + 7) / 8;
+        dw = mpi->w * by;
+    }
+    /* Index position */
+    t = priv->frame_cur % priv->xytile;
+//    if ((t == 0) && (bkg != 0)) {
+//        /* First frame, delete the background */
+//
+//    }
+
+    /* Position of image */
+    xi = priv->start + (mpi->w + priv->delta) * (t % priv->xtile);
+    yi = priv->start + (mpi->h + priv->delta) * (t / priv->xtile);
+
+    /* Copy first (or only) plane */
+    memcpy_pic( dmpi->planes[0] + xi * by + yi * dmpi->stride[0],
+                mpi->planes[0],
+                dw,
+                mpi->h,
+                dmpi->stride[0],
+                mpi->stride[0]);
+
+    if (mpi->flags & MP_IMGFLAG_PLANAR) {
+        /* Copy the other 2 planes */
+        memcpy_pic( dmpi->planes[1] + (xi >> mpi->chroma_x_shift) + (yi >> mpi->chroma_y_shift) * dmpi->stride[1],
+                    mpi->planes[1],
+                    mpi->chroma_width,
+                    mpi->chroma_height,
+                    dmpi->stride[1],
+                    mpi->stride[1]);
+         memcpy_pic( dmpi->planes[2] + (xi >> mpi->chroma_x_shift) + (yi >> mpi->chroma_y_shift) * dmpi->stride[2],
+                    mpi->planes[2],
+                    mpi->chroma_width,
+                    mpi->chroma_height,
+                    dmpi->stride[2],
+                    mpi->stride[2]);
+    }
+
+    /* Increment current frame */
+    ++priv->frame_cur;
+
+    if (t == priv->xytile - 1)  {
+        /* Display the composition */
+        dmpi->width  = xw;
+        dmpi->height = yh;
+        return vf_next_put_image(vf, dmpi);
+    }
+    else {
+        /* Skip the frame */
+        return(0);
+    }
+}
+
+static void uninit(struct vf_instance_s* vf)
+{
+    /* free local data */
+    free(vf->priv);
+}
+
+/* rgb/bgr 15->32 supported & some Yxxx */
+static int query_format(struct vf_instance_s* vf, unsigned int fmt)
+{
+	switch (fmt) {
+        /* rgb 15 -> 32 bit */
+        case IMGFMT_RGB15:
+	case IMGFMT_RGB16:
+	case IMGFMT_RGB24:
+        case IMGFMT_RGB32:
+        /* bgr 15 -> 32 bit */
+	case IMGFMT_BGR15:
+	case IMGFMT_BGR16:
+	case IMGFMT_BGR24:
+        case IMGFMT_BGR32:
+        /* Various Yxxx Formats */
+        case IMGFMT_444P:
+        case IMGFMT_422P:
+        case IMGFMT_411P:
+        case IMGFMT_YUY2:
+        case IMGFMT_YV12:
+        case IMGFMT_I420:
+        case IMGFMT_YVU9:
+        case IMGFMT_IF09:
+        case IMGFMT_IYUV:
+		return vf_next_query_format(vf, fmt);
+	}
+	return 0;
+}
+
+/* Get an integer from the string pointed by s, adjusting s.
+ * If the value is less then 0 def_val is used.
+ * Return 0 for ok
+ *
+ * Look below ( in open(...) ) for a use ...
+ */
+static int parse_int(char **s, int *rt, int def_val)
+{
+
+    int     t = 0;
+
+    if (**s) {
+        /* Get value (dec, hex or octal) */
+        t = strtol( *s, s, 0 );
+
+        /* Use default */
+        if (t < 0) {
+            t = def_val;
+        }
+
+        if (**s == ':') {
+            /* Point to next character (problably a digit) */
+            ++(*s);
+        }
+        else if (**s != '\0') {
+            /* Error, we got some wrong char */
+            return(1);
+        }
+    }
+    else {
+        t = def_val;
+    }
+
+    *rt = t;
+    return(0);
+
+}
+
+/* Main entry funct for the filter */
+static int open(vf_instance_t *vf, char* args)
+{
+    struct vf_priv_s *p;
+    int              er;
+
+    vf->put_image    = put_image;
+    vf->query_format = query_format;
+    vf->config       = config;
+    vf->uninit       = uninit;
+    vf->default_reqs = VFCAP_ACCEPT_STRIDE;
+    /* Private data */
+    vf->priv = p = calloc(1, sizeof(struct vf_priv_s));
+    if (p == NULL) {
+        return(0);
+    }
+
+    if (args == NULL) {
+        /* Use the default */
+        args = "";
+    }
+    /* Parse all the arguments */
+    er =  parse_int( &args, &p->xtile,  5 );
+    er |= parse_int( &args, &p->ytile,  5 );
+    er |= parse_int( &args, &p->xytile, 0 );
+    er |= parse_int( &args, &p->start,  2 );
+    er |= parse_int( &args, &p->delta,  4 );
+//    er |= parse_int( &args, &p->bkgSet, 0 );
+
+    if (er) {
+        printf("Error parsing argument\n");
+        return(0);
+    }
+    /* Load some default */
+    if ((p->xytile <= 0) || (p->xytile > p->xtile * p->ytile)) {
+        p->xytile = p->xtile * p->ytile;
+    }
+
+    /* Say what happen: use mp_msg(...)? */
+    if (verbose) {
+        printf("vf_tile: tiling %d * %d, output every %d frames\n",
+               p->xtile,
+               p->ytile,
+               p->xytile);
+        printf("vf_tile: start pixel %d, delta pixel %d\n",
+               p->start,
+               p->delta);
+//      printf("vf_tile: background 0x%x\n",
+//             p->bkgSet);
+    }
+    return 1;
+}
+
+vf_info_t vf_info_tile = {
+    "Make a single image tiling x/y images",
+    "tile",
+    "Daniele Forghieri",
+    "",
+    open,
+    NULL
+};