avfilter: Constify all AVFilters

[ffmpeg] / libavfilter / vf_delogo.c

diff --git a/libavfilter/vf_delogo.c b/libavfilter/vf_delogo.c
index 814575a36cd1768f10cdf1ed107e82245c672e20..98383017026f28a4b79465218fed58e7bb243717 100644 (file)
--- a/libavfilter/vf_delogo.c
+++ b/libavfilter/vf_delogo.c
@@ -55,7 +55,6 @@ enum var_name {
     VAR_T,
     VAR_VARS_NB
 };
-#define TS2T(ts, tb) ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts) * av_q2d(tb))
 
 static int set_expr(AVExpr **pexpr, const char *expr, const char *option, void *log_ctx)
 {
@@ -168,7 +167,7 @@ static void apply_delogo(uint8_t *dst, int dst_linesize,
                  botleft[x-logo_x1-1]  +
                  botleft[x-logo_x1+1]) * weightb;
             weight = (weightl + weightr + weightt + weightb) * 3U;
-            interp = ROUNDED_DIV(interp, weight);
+            interp = (interp + (weight >> 1)) / weight;
 
             if (y >= logo_y+band && y < logo_y+logo_h-band &&
                 x >= logo_x+band && x < logo_x+logo_w-band) {
@@ -207,21 +206,16 @@ typedef struct DelogoContext {
 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
 
 static const AVOption delogo_options[]= {
-    { "x",    "set logo x position",       OFFSET(x_expr),    AV_OPT_TYPE_STRING, { .str = "-1" }, CHAR_MIN, CHAR_MAX, FLAGS },
-    { "y",    "set logo y position",       OFFSET(y_expr),    AV_OPT_TYPE_STRING, { .str = "-1" }, CHAR_MIN, CHAR_MAX, FLAGS },
-    { "w",    "set logo width",            OFFSET(w_expr),    AV_OPT_TYPE_STRING, { .str = "-1" }, CHAR_MIN, CHAR_MAX, FLAGS },
-    { "h",    "set logo height",           OFFSET(h_expr),    AV_OPT_TYPE_STRING, { .str = "-1" }, CHAR_MIN, CHAR_MAX, FLAGS },
-#if LIBAVFILTER_VERSION_MAJOR < 7
-    /* Actual default value for band/t is 1, set in init */
-    { "band", "set delogo area band size", OFFSET(band), AV_OPT_TYPE_INT, { .i64 =  0 },  0, INT_MAX, FLAGS },
-    { "t",    "set delogo area band size", OFFSET(band), AV_OPT_TYPE_INT, { .i64 =  0 },  0, INT_MAX, FLAGS },
-#endif
-    { "show", "show delogo area",          OFFSET(show), AV_OPT_TYPE_BOOL,{ .i64 =  0 },  0, 1,       FLAGS },
+    { "x",    "set logo x position",       OFFSET(x_expr),    AV_OPT_TYPE_STRING, { .str = "-1" }, 0, 0, FLAGS },
+    { "y",    "set logo y position",       OFFSET(y_expr),    AV_OPT_TYPE_STRING, { .str = "-1" }, 0, 0, FLAGS },
+    { "w",    "set logo width",            OFFSET(w_expr),    AV_OPT_TYPE_STRING, { .str = "-1" }, 0, 0, FLAGS },
+    { "h",    "set logo height",           OFFSET(h_expr),    AV_OPT_TYPE_STRING, { .str = "-1" }, 0, 0, FLAGS },
+    { "show", "show delogo area",          OFFSET(show),      AV_OPT_TYPE_BOOL,   { .i64 =  0 },   0, 1, FLAGS },
     { NULL }
 };
 
 AVFILTER_DEFINE_CLASS(delogo);
-static void uninit(AVFilterContext *ctx)
+static av_cold void uninit(AVFilterContext *ctx)
 {
     DelogoContext *s = ctx->priv;
 
@@ -272,16 +266,8 @@ static av_cold int init(AVFilterContext *ctx)
     CHECK_UNSET_OPT(w);
     CHECK_UNSET_OPT(h);
 
-#if LIBAVFILTER_VERSION_MAJOR < 7
-    if (s->band == 0) { /* Unset, use default */
-        av_log(ctx, AV_LOG_WARNING, "Note: default band value was changed from 4 to 1.\n");
-        s->band = 1;
-    } else if (s->band != 1) {
-        av_log(ctx, AV_LOG_WARNING, "Option band is deprecated.\n");
-    }
-#else
     s->band = 1;
-#endif
+
     av_log(ctx, AV_LOG_VERBOSE, "x:%d y:%d, w:%d h:%d band:%d show:%d\n",
            s->x, s->y, s->w, s->h, s->band, s->show);
 
@@ -327,6 +313,21 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
     s->w = av_expr_eval(s->w_pexpr, s->var_values, s);
     s->h = av_expr_eval(s->h_pexpr, s->var_values, s);
 
+    if (s->x + (s->band - 1) <= 0 || s->x + s->w - (s->band*2 - 2) > inlink->w ||
+        s->y + (s->band - 1) <= 0 || s->y + s->h - (s->band*2 - 2) > inlink->h) {
+        av_log(s, AV_LOG_WARNING, "Logo area is outside of the frame,"
+               " auto set the area inside of the frame\n");
+    }
+
+    if (s->x + (s->band - 1) <= 0)
+        s->x = 1 + s->band;
+    if (s->y + (s->band - 1) <= 0)
+        s->y = 1 + s->band;
+    if (s->x + s->w - (s->band*2 - 2) > inlink->w)
+        s->w = inlink->w - s->x - (s->band*2 - 2);
+    if (s->y + s->h - (s->band*2 - 2) > inlink->h)
+        s->h = inlink->h - s->y - (s->band*2 - 2);
+
     ret = config_input(inlink);
     if (ret < 0) {
         av_frame_free(&in);
@@ -397,7 +398,7 @@ static const AVFilterPad avfilter_vf_delogo_outputs[] = {
     { NULL }
 };
 
-AVFilter ff_vf_delogo = {
+const AVFilter ff_vf_delogo = {
     .name          = "delogo",
     .description   = NULL_IF_CONFIG_SMALL("Remove logo from input video."),
     .priv_size     = sizeof(DelogoContext),