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-rw-r--r--video/filter/vf_delogo.c379
1 files changed, 379 insertions, 0 deletions
diff --git a/video/filter/vf_delogo.c b/video/filter/vf_delogo.c
new file mode 100644
index 0000000000..add6dc6b0c
--- /dev/null
+++ b/video/filter/vf_delogo.c
@@ -0,0 +1,379 @@
+/*
+ * Copyright (C) 2002 Jindrich Makovicka <makovick@gmail.com>
+ *
+ * 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.
+ */
+
+/* A very simple tv station logo remover */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <errno.h>
+#include <math.h>
+
+#include "mp_msg.h"
+#include "cpudetect.h"
+#include "img_format.h"
+#include "mp_image.h"
+#include "vf.h"
+#include "libvo/fastmemcpy.h"
+
+#include "m_option.h"
+#include "m_struct.h"
+
+//===========================================================================//
+
+static struct vf_priv_s {
+ unsigned int outfmt;
+ int xoff, yoff, lw, lh, band, show;
+ const char *file;
+ struct timed_rectangle {
+ int ts, x, y, w, h, b;
+ } *timed_rect;
+ int n_timed_rect;
+ int cur_timed_rect;
+} const vf_priv_dflt = {
+ 0,
+ 0, 0, 0, 0, 0, 0,
+ NULL, NULL, 0, 0,
+};
+
+#define MIN(a,b) (((a) < (b)) ? (a) : (b))
+#define MAX(a,b) (((a) > (b)) ? (a) : (b))
+
+/**
+ * Adjust the coordinates to suit the band width
+ * Also print a notice in verbose mode
+ */
+static void fix_band(struct vf_priv_s *p)
+{
+ p->show = 0;
+ if (p->band < 0) {
+ p->band = 4;
+ p->show = 1;
+ }
+ p->lw += p->band*2;
+ p->lh += p->band*2;
+ p->xoff -= p->band;
+ p->yoff -= p->band;
+ mp_msg(MSGT_VFILTER, MSGL_V, "delogo: %d x %d, %d x %d, band = %d\n",
+ p->xoff, p->yoff, p->lw, p->lh, p->band);
+}
+
+static void update_sub(struct vf_priv_s *p, double pts)
+{
+ int ipts = pts * 1000;
+ int tr = p->cur_timed_rect;
+ while (tr < p->n_timed_rect - 1 && ipts >= p->timed_rect[tr + 1].ts)
+ tr++;
+ while (tr >= 0 && ipts < p->timed_rect[tr].ts)
+ tr--;
+ if (tr == p->cur_timed_rect)
+ return;
+ p->cur_timed_rect = tr;
+ if (tr >= 0) {
+ p->xoff = p->timed_rect[tr].x;
+ p->yoff = p->timed_rect[tr].y;
+ p->lw = p->timed_rect[tr].w;
+ p->lh = p->timed_rect[tr].h;
+ p->band = p->timed_rect[tr].b;
+ } else {
+ p->xoff = p->yoff = p->lw = p->lh = p->band = 0;
+ }
+ fix_band(p);
+}
+
+static void delogo(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int width, int height,
+ int logo_x, int logo_y, int logo_w, int logo_h, int band, int show, int direct) {
+ int y, x;
+ int interp, dist;
+ uint8_t *xdst, *xsrc;
+
+ uint8_t *topleft, *botleft, *topright;
+ int xclipl, xclipr, yclipt, yclipb;
+ int logo_x1, logo_x2, logo_y1, logo_y2;
+
+ xclipl = MAX(-logo_x, 0);
+ xclipr = MAX(logo_x+logo_w-width, 0);
+ yclipt = MAX(-logo_y, 0);
+ yclipb = MAX(logo_y+logo_h-height, 0);
+
+ logo_x1 = logo_x + xclipl;
+ logo_x2 = logo_x + logo_w - xclipr;
+ logo_y1 = logo_y + yclipt;
+ logo_y2 = logo_y + logo_h - yclipb;
+
+ topleft = src+logo_y1*srcStride+logo_x1;
+ topright = src+logo_y1*srcStride+logo_x2-1;
+ botleft = src+(logo_y2-1)*srcStride+logo_x1;
+
+ if (!direct) memcpy_pic(dst, src, width, height, dstStride, srcStride);
+
+ dst += (logo_y1+1)*dstStride;
+ src += (logo_y1+1)*srcStride;
+
+ for(y = logo_y1+1; y < logo_y2-1; y++)
+ {
+ for (x = logo_x1+1, xdst = dst+logo_x1+1, xsrc = src+logo_x1+1; x < logo_x2-1; x++, xdst++, xsrc++) {
+ interp = ((topleft[srcStride*(y-logo_y-yclipt)]
+ + topleft[srcStride*(y-logo_y-1-yclipt)]
+ + topleft[srcStride*(y-logo_y+1-yclipt)])*(logo_w-(x-logo_x))/logo_w
+ + (topright[srcStride*(y-logo_y-yclipt)]
+ + topright[srcStride*(y-logo_y-1-yclipt)]
+ + topright[srcStride*(y-logo_y+1-yclipt)])*(x-logo_x)/logo_w
+ + (topleft[x-logo_x-xclipl]
+ + topleft[x-logo_x-1-xclipl]
+ + topleft[x-logo_x+1-xclipl])*(logo_h-(y-logo_y))/logo_h
+ + (botleft[x-logo_x-xclipl]
+ + botleft[x-logo_x-1-xclipl]
+ + botleft[x-logo_x+1-xclipl])*(y-logo_y)/logo_h
+ )/6;
+/* interp = (topleft[srcStride*(y-logo_y)]*(logo_w-(x-logo_x))/logo_w
+ + topright[srcStride*(y-logo_y)]*(x-logo_x)/logo_w
+ + topleft[x-logo_x]*(logo_h-(y-logo_y))/logo_h
+ + botleft[x-logo_x]*(y-logo_y)/logo_h
+ )/2;*/
+ if (y >= logo_y+band && y < logo_y+logo_h-band && x >= logo_x+band && x < logo_x+logo_w-band) {
+ *xdst = interp;
+ } else {
+ dist = 0;
+ if (x < logo_x+band) dist = MAX(dist, logo_x-x+band);
+ else if (x >= logo_x+logo_w-band) dist = MAX(dist, x-(logo_x+logo_w-1-band));
+ if (y < logo_y+band) dist = MAX(dist, logo_y-y+band);
+ else if (y >= logo_y+logo_h-band) dist = MAX(dist, y-(logo_y+logo_h-1-band));
+ *xdst = (*xsrc*dist + interp*(band-dist))/band;
+ if (show && (dist == band-1)) *xdst = 0;
+ }
+ }
+
+ dst+= dstStride;
+ src+= srcStride;
+ }
+}
+
+static int config(struct vf_instance *vf,
+ int width, int height, int d_width, int d_height,
+ unsigned int flags, unsigned int outfmt){
+
+ return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
+}
+
+
+static void get_image(struct vf_instance *vf, mp_image_t *mpi){
+ if(mpi->flags&MP_IMGFLAG_PRESERVE) return; // don't change
+ if(mpi->imgfmt!=vf->priv->outfmt) return; // colorspace differ
+ // ok, we can do pp in-place (or pp disabled):
+ mpi->priv =
+ vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
+ mpi->type, mpi->flags, mpi->w, mpi->h);
+ mpi->planes[0]=vf->dmpi->planes[0];
+ mpi->stride[0]=vf->dmpi->stride[0];
+ mpi->width=vf->dmpi->width;
+ if(mpi->flags&MP_IMGFLAG_PLANAR){
+ mpi->planes[1]=vf->dmpi->planes[1];
+ mpi->planes[2]=vf->dmpi->planes[2];
+ mpi->stride[1]=vf->dmpi->stride[1];
+ mpi->stride[2]=vf->dmpi->stride[2];
+ }
+ mpi->flags|=MP_IMGFLAG_DIRECT;
+}
+
+static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
+ mp_image_t *dmpi;
+
+ if(mpi->flags&MP_IMGFLAG_DIRECT) {
+ vf->dmpi = mpi->priv;
+ mpi->priv = NULL;
+ } else {
+ // no DR, so get a new image! hope we'll get DR buffer:
+ vf->dmpi=vf_get_image(vf->next,vf->priv->outfmt,
+ MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
+ mpi->w,mpi->h);
+ }
+ dmpi= vf->dmpi;
+
+ if (vf->priv->timed_rect)
+ update_sub(vf->priv, pts);
+ delogo(dmpi->planes[0], mpi->planes[0], dmpi->stride[0], mpi->stride[0], mpi->w, mpi->h,
+ vf->priv->xoff, vf->priv->yoff, vf->priv->lw, vf->priv->lh, vf->priv->band, vf->priv->show,
+ mpi->flags&MP_IMGFLAG_DIRECT);
+ delogo(dmpi->planes[1], mpi->planes[1], dmpi->stride[1], mpi->stride[1], mpi->w/2, mpi->h/2,
+ vf->priv->xoff/2, vf->priv->yoff/2, vf->priv->lw/2, vf->priv->lh/2, vf->priv->band/2, vf->priv->show,
+ mpi->flags&MP_IMGFLAG_DIRECT);
+ delogo(dmpi->planes[2], mpi->planes[2], dmpi->stride[2], mpi->stride[2], mpi->w/2, mpi->h/2,
+ vf->priv->xoff/2, vf->priv->yoff/2, vf->priv->lw/2, vf->priv->lh/2, vf->priv->band/2, vf->priv->show,
+ mpi->flags&MP_IMGFLAG_DIRECT);
+
+ vf_clone_mpi_attributes(dmpi, mpi);
+
+ return vf_next_put_image(vf,dmpi, pts);
+}
+
+static void uninit(struct vf_instance *vf){
+ if(!vf->priv) return;
+
+ free(vf->priv);
+ vf->priv=NULL;
+}
+
+//===========================================================================//
+
+static int query_format(struct vf_instance *vf, unsigned int fmt){
+ switch(fmt)
+ {
+ case IMGFMT_YV12:
+ case IMGFMT_I420:
+ case IMGFMT_IYUV:
+ return vf_next_query_format(vf,vf->priv->outfmt);
+ }
+ return 0;
+}
+
+static const unsigned int fmt_list[]={
+ IMGFMT_YV12,
+ IMGFMT_I420,
+ IMGFMT_IYUV,
+ 0
+};
+
+static int load_timed_rectangles(struct vf_priv_s *delogo)
+{
+ FILE *f;
+ char line[2048];
+ int lineno = 0, p;
+ double ts, last_ts = 0;
+ struct timed_rectangle *rect = NULL, *nr;
+ int n_rect = 0, alloc_rect = 0;
+
+ f = fopen(delogo->file, "r");
+ if (!f) {
+ mp_msg(MSGT_VFILTER, MSGL_ERR, "delogo: unable to load %s: %s\n",
+ delogo->file, strerror(errno));
+ return -1;
+ }
+ while (fgets(line, sizeof(line), f)) {
+ lineno++;
+ if (*line == '#' || *line == '\n')
+ continue;
+ if (n_rect == alloc_rect) {
+ if (alloc_rect > INT_MAX / 2 / (int)sizeof(*rect)) {
+ mp_msg(MSGT_VFILTER, MSGL_WARN,
+ "delogo: too many rectangles\n");
+ goto load_error;
+ }
+ alloc_rect = alloc_rect ? 2 * alloc_rect : 256;
+ nr = realloc(rect, alloc_rect * sizeof(*rect));
+ if (!nr) {
+ mp_msg(MSGT_VFILTER, MSGL_WARN, "delogo: out of memory\n");
+ goto load_error;
+ }
+ rect = nr;
+ }
+ nr = rect + n_rect;
+ memset(nr, 0, sizeof(*nr));
+ p = sscanf(line, "%lf %d:%d:%d:%d:%d",
+ &ts, &nr->x, &nr->y, &nr->w, &nr->h, &nr->b);
+ if ((p == 2 && !nr->x) || p == 5 || p == 6) {
+ if (ts <= last_ts)
+ mp_msg(MSGT_VFILTER, MSGL_WARN, "delogo: %s:%d: wrong time\n",
+ delogo->file, lineno);
+ nr->ts = 1000 * ts + 0.5;
+ n_rect++;
+ } else {
+ mp_msg(MSGT_VFILTER, MSGL_WARN, "delogo: %s:%d: syntax error\n",
+ delogo->file, lineno);
+ }
+ }
+ fclose(f);
+ if (!n_rect) {
+ mp_msg(MSGT_VFILTER, MSGL_ERR, "delogo: %s: no rectangles found\n",
+ delogo->file);
+ free(rect);
+ return -1;
+ }
+ nr = realloc(rect, n_rect * sizeof(*rect));
+ if (nr)
+ rect = nr;
+ delogo->timed_rect = rect;
+ delogo->n_timed_rect = n_rect;
+ return 0;
+
+load_error:
+ free(rect);
+ fclose(f);
+ return -1;
+}
+
+static int vf_open(vf_instance_t *vf, char *args){
+ vf->config=config;
+ vf->put_image=put_image;
+ vf->get_image=get_image;
+ vf->query_format=query_format;
+ vf->uninit=uninit;
+
+ if (vf->priv->file) {
+ if (load_timed_rectangles(vf->priv))
+ return 0;
+ mp_msg(MSGT_VFILTER, MSGL_V, "delogo: %d from %s\n",
+ vf->priv->n_timed_rect, vf->priv->file);
+ vf->priv->cur_timed_rect = -1;
+ }
+ fix_band(vf->priv);
+
+ // check csp:
+ vf->priv->outfmt=vf_match_csp(&vf->next,fmt_list,IMGFMT_YV12);
+ if(!vf->priv->outfmt)
+ {
+ uninit(vf);
+ return 0; // no csp match :(
+ }
+
+ return 1;
+}
+
+#define ST_OFF(f) M_ST_OFF(struct vf_priv_s,f)
+static const m_option_t vf_opts_fields[] = {
+ { "x", ST_OFF(xoff), CONF_TYPE_INT, 0, 0, 0, NULL },
+ { "y", ST_OFF(yoff), CONF_TYPE_INT, 0, 0, 0, NULL },
+ { "w", ST_OFF(lw), CONF_TYPE_INT, 0, 0, 0, NULL },
+ { "h", ST_OFF(lh), CONF_TYPE_INT, 0, 0, 0, NULL },
+ { "t", ST_OFF(band), CONF_TYPE_INT, 0, 0, 0, NULL },
+ { "band", ST_OFF(band), CONF_TYPE_INT, 0, 0, 0, NULL }, // alias
+ { "file", ST_OFF(file), CONF_TYPE_STRING, 0, 0, 0, NULL },
+ { NULL, NULL, 0, 0, 0, 0, NULL }
+};
+
+static const m_struct_t vf_opts = {
+ "delogo",
+ sizeof(struct vf_priv_s),
+ &vf_priv_dflt,
+ vf_opts_fields
+};
+
+const vf_info_t vf_info_delogo = {
+ "simple logo remover",
+ "delogo",
+ "Jindrich Makovicka, Alex Beregszaszi",
+ "",
+ vf_open,
+ &vf_opts
+};
+
+//===========================================================================//