vf_fade: switch to filter_frame

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavfilter/vf_fade.c

@@ -216,10 +216,9 @@ static void fade_plane(int y, int h, int w,
     }
 }
 
-static int draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
+static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *frame)
 {
     FadeContext *fade = inlink->dst->priv;
-    AVFilterBufferRef *outpic = inlink->cur_buf;
     uint8_t *p;
     int i, j, plane;
 
@@ -228,22 +227,22 @@ static int draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
             // alpha only
             plane = fade->is_packed_rgb ? 0 : A; // alpha is on plane 0 for packed formats
                                                  // or plane 3 for planar formats
-            fade_plane(y, h, inlink->w,
+            fade_plane(0, frame->video->h, inlink->w,
                        fade->factor, fade->black_level, fade->black_level_scaled,
                        fade->is_packed_rgb ? fade->rgba_map[A] : 0, // alpha offset for packed formats
                        fade->is_packed_rgb ? 4 : 1,                 // pixstep for 8 bit packed formats
-                       1, outpic->data[plane], outpic->linesize[plane]);
+                       1, frame->data[plane], frame->linesize[plane]);
         } else {
             /* luma or rgb plane */
-            fade_plane(y, h, inlink->w,
+            fade_plane(0, frame->video->h, inlink->w,
                        fade->factor, fade->black_level, fade->black_level_scaled,
                        0, 1, // offset & pixstep for Y plane or RGB packed format
-                       fade->bpp, outpic->data[0], outpic->linesize[0]);
-            if (outpic->data[1] && outpic->data[2]) {
+                       fade->bpp, frame->data[0], frame->linesize[0]);
+            if (frame->data[1] && frame->data[2]) {
                 /* chroma planes */
                 for (plane = 1; plane < 3; plane++) {
-                    for (i = 0; i < h; i++) {
-                        p = outpic->data[plane] + ((y+i) >> fade->vsub) * outpic->linesize[plane];
+                    for (i = 0; i < frame->video->h; i++) {
+                        p = frame->data[plane] + (i >> fade->vsub) * frame->linesize[plane];
                         for (j = 0; j < inlink->w >> fade->hsub; j++) {
                             /* 8421367 = ((128 << 1) + 1) << 15. It is an integer
                              * representation of 128.5. The .5 is for rounding
@@ -257,23 +256,13 @@ static int draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
         }
     }
 
-    return ff_draw_slice(inlink->dst->outputs[0], y, h, slice_dir);
-}
-
-static int end_frame(AVFilterLink *inlink)
-{
-    FadeContext *fade = inlink->dst->priv;
-    int ret;
-
-    ret = ff_end_frame(inlink->dst->outputs[0]);
-
     if (fade->frame_index >= fade->start_frame &&
         fade->frame_index <= fade->stop_frame)
         fade->factor += fade->fade_per_frame;
     fade->factor = av_clip_uint16(fade->factor);
     fade->frame_index++;
 
-    return ret;
+    return ff_filter_frame(inlink->dst->outputs[0], frame);
 }
 
 static const AVFilterPad avfilter_vf_fade_inputs[] = {
@@ -282,9 +271,7 @@ static const AVFilterPad avfilter_vf_fade_inputs[] = {
         .type             = AVMEDIA_TYPE_VIDEO,
         .config_props     = config_props,
         .get_video_buffer = ff_null_get_video_buffer,
-        .start_frame      = ff_null_start_frame,
-        .draw_slice       = draw_slice,
-        .end_frame        = end_frame,
+        .filter_frame     = filter_frame,
         .min_perms        = AV_PERM_READ | AV_PERM_WRITE,
     },
     { NULL }