Merge remote-tracking branch 'qatar/master'

[ffmpeg] / libavfilter / vf_pad.c

diff --git a/libavfilter/vf_pad.c b/libavfilter/vf_pad.c
index e24cda8e0a490e0a141702e48a207ded8fbb4758..1634f789f0d83b7caa1e48dbfa07bddadbc572b6 100644 (file)
--- a/libavfilter/vf_pad.c
+++ b/libavfilter/vf_pad.c
@@ -35,7 +35,7 @@
 #include "libavutil/mathematics.h"
 #include "drawutils.h"
 
-static const char *var_names[] = {
+static const char * const var_names[] = {
     "in_w",   "iw",
     "in_h",   "ih",
     "out_w",  "ow",
@@ -114,7 +114,7 @@ static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
     av_strlcpy(pad->y_expr, "0" , sizeof(pad->h_expr));
 
     if (args)
-        sscanf(args, "%255[^:]:%255[^:]:%255[^:]:%255[^:]:%255s",
+        sscanf(args, "%255[^:]:%255[^:]:%255[^:]:%255[^:]:%127s",
                pad->w_expr, pad->h_expr, pad->x_expr, pad->y_expr, color_string);
 
     if (av_parse_color(pad->color, color_string, -1, ctx) < 0)
@@ -251,9 +251,10 @@ static int config_output(AVFilterLink *outlink)
 static AVFilterBufferRef *get_video_buffer(AVFilterLink *inlink, int perms, int w, int h)
 {
     PadContext *pad = inlink->dst->priv;
+    int align = (perms&AV_PERM_ALIGN) ? AVFILTER_ALIGN : 1;
 
     AVFilterBufferRef *picref = avfilter_get_video_buffer(inlink->dst->outputs[0], perms,
-                                                       w + (pad->w - pad->in_w),
+                                                       w + (pad->w - pad->in_w) + 4*align,
                                                        h + (pad->h - pad->in_h));
     int plane;
 
@@ -264,7 +265,7 @@ static AVFilterBufferRef *get_video_buffer(AVFilterLink *inlink, int perms, int
         int hsub = (plane == 1 || plane == 2) ? pad->hsub : 0;
         int vsub = (plane == 1 || plane == 2) ? pad->vsub : 0;
 
-        picref->data[plane] += (pad->x >> hsub) * pad->line_step[plane] +
+        picref->data[plane] += FFALIGN(pad->x >> hsub, align) * pad->line_step[plane] +
             (pad->y >> vsub) * picref->linesize[plane];
     }
 
@@ -411,7 +412,7 @@ AVFilter avfilter_vf_pad = {
     .uninit        = uninit,
     .query_formats = query_formats,
 
-    .inputs    = (AVFilterPad[]) {{ .name             = "default",
+    .inputs    = (const AVFilterPad[]) {{ .name       = "default",
                                     .type             = AVMEDIA_TYPE_VIDEO,
                                     .config_props     = config_input,
                                     .get_video_buffer = get_video_buffer,
@@ -420,7 +421,7 @@ AVFilter avfilter_vf_pad = {
                                     .end_frame        = end_frame, },
                                   { .name = NULL}},
 
-    .outputs   = (AVFilterPad[]) {{ .name             = "default",
+    .outputs   = (const AVFilterPad[]) {{ .name       = "default",
                                     .type             = AVMEDIA_TYPE_VIDEO,
                                     .config_props     = config_output, },
                                   { .name = NULL}},