Merge commit '63e58c55c17d7f8b5eec9c082fe0f8edc305a24e'
[ffmpeg.git] / libavfilter / vf_delogo.c
index 0b928b1..1b4ea69 100644 (file)
@@ -2,20 +2,20 @@
  * Copyright (c) 2002 Jindrich Makovicka <makovick@gmail.com>
  * Copyright (c) 2011 Stefano Sabatini
  *
- * This file is part of Libav.
+ * This file is part of FFmpeg.
  *
- * Libav is free software; you can redistribute it and/or modify
+ * FFmpeg 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.
  *
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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 Libav; if not, write to the Free Software Foundation, Inc.,
+ * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
@@ -90,18 +90,22 @@ static void apply_delogo(uint8_t *dst, int dst_linesize,
         for (x = logo_x1+1,
              xdst = dst+logo_x1+1,
              xsrc = src+logo_x1+1; x < logo_x2-1; x++, xdst++, xsrc++) {
-            interp = (topleft[src_linesize*(y-logo_y  -yclipt)]   +
-                      topleft[src_linesize*(y-logo_y-1-yclipt)]   +
-                      topleft[src_linesize*(y-logo_y+1-yclipt)])  * (logo_w-(x-logo_x))/logo_w
-                   + (topright[src_linesize*(y-logo_y-yclipt)]    +
-                      topright[src_linesize*(y-logo_y-1-yclipt)]  +
-                      topright[src_linesize*(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;
+            interp =
+                (topleft[src_linesize*(y-logo_y  -yclipt)]   +
+                 topleft[src_linesize*(y-logo_y-1-yclipt)]   +
+                 topleft[src_linesize*(y-logo_y+1-yclipt)])  * (logo_w-(x-logo_x))/logo_w
+                +
+                (topright[src_linesize*(y-logo_y-yclipt)]    +
+                 topright[src_linesize*(y-logo_y-1-yclipt)]  +
+                 topright[src_linesize*(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;
             interp /= 6;
 
             if (y >= logo_y+band && y < logo_y+logo_h-band &&
@@ -136,7 +140,7 @@ typedef struct {
 }  DelogoContext;
 
 #define OFFSET(x) offsetof(DelogoContext, x)
-#define FLAGS AV_OPT_FLAG_VIDEO_PARAM
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
 
 static const AVOption delogo_options[]= {
     { "x",    "set logo x position",       OFFSET(x),    AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
@@ -149,20 +153,11 @@ static const AVOption delogo_options[]= {
     { NULL },
 };
 
-static const char *delogo_get_name(void *ctx)
-{
-    return "delogo";
-}
-
-static const AVClass delogo_class = {
-    .class_name = "DelogoContext",
-    .item_name  = delogo_get_name,
-    .option     = delogo_options,
-};
+AVFILTER_DEFINE_CLASS(delogo);
 
 static int query_formats(AVFilterContext *ctx)
 {
-    enum AVPixelFormat pix_fmts[] = {
+    static const enum AVPixelFormat pix_fmts[] = {
         AV_PIX_FMT_YUV444P,  AV_PIX_FMT_YUV422P,  AV_PIX_FMT_YUV420P,
         AV_PIX_FMT_YUV411P,  AV_PIX_FMT_YUV410P,  AV_PIX_FMT_YUV440P,
         AV_PIX_FMT_YUVA420P, AV_PIX_FMT_GRAY8,
@@ -187,10 +182,12 @@ static av_cold int init(AVFilterContext *ctx, const char *args)
     CHECK_UNSET_OPT(w);
     CHECK_UNSET_OPT(h);
 
-    if (delogo->show)
+    if (delogo->band < 0 || delogo->show) {
+        delogo->show = 1;
         delogo->band = 4;
+    }
 
-    av_log(ctx, AV_LOG_DEBUG, "x:%d y:%d, w:%d h:%d band:%d show:%d\n",
+    av_log(ctx, AV_LOG_VERBOSE, "x:%d y:%d, w:%d h:%d band:%d show:%d\n",
            delogo->x, delogo->y, delogo->w, delogo->h, delogo->band, delogo->show);
 
     delogo->w += delogo->band*2;
@@ -223,8 +220,6 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
         }
 
         av_frame_copy_props(out, in);
-        out->width  = outlink->w;
-        out->height = outlink->h;
     }
 
     for (plane = 0; plane < 4 && in->data[plane]; plane++) {