From a5e3b0c1934f76f21957d001853cf976a94da47b Mon Sep 17 00:00:00 2001
From: Nicolas George <george@nsup.org>
Date: Mon, 17 Jul 2017 16:38:18 +0200
Subject: lavfi/vf_maskedmerge: move to "activate" design.

---
 libavfilter/Makefile         |  2 +-
 libavfilter/maskedmerge.h    |  2 +-
 libavfilter/vf_maskedmerge.c | 29 ++++++++++-------------------
 3 files changed, 12 insertions(+), 21 deletions(-)

diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index 0edd33576f..5128f0f937 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -226,7 +226,7 @@ OBJS-$(CONFIG_LUT3D_FILTER)                  += vf_lut3d.o
 OBJS-$(CONFIG_LUTRGB_FILTER)                 += vf_lut.o
 OBJS-$(CONFIG_LUTYUV_FILTER)                 += vf_lut.o
 OBJS-$(CONFIG_MASKEDCLAMP_FILTER)            += vf_maskedclamp.o framesync.o
-OBJS-$(CONFIG_MASKEDMERGE_FILTER)            += vf_maskedmerge.o framesync.o
+OBJS-$(CONFIG_MASKEDMERGE_FILTER)            += vf_maskedmerge.o framesync2.o
 OBJS-$(CONFIG_MCDEINT_FILTER)                += vf_mcdeint.o
 OBJS-$(CONFIG_MERGEPLANES_FILTER)            += vf_mergeplanes.o framesync.o
 OBJS-$(CONFIG_MESTIMATE_FILTER)              += vf_mestimate.o motion_estimation.o
diff --git a/libavfilter/maskedmerge.h b/libavfilter/maskedmerge.h
index 8e2b1cf676..3d670f6d5d 100644
--- a/libavfilter/maskedmerge.h
+++ b/libavfilter/maskedmerge.h
@@ -22,7 +22,7 @@
 #define AVFILTER_MASKEDMERGE_H
 
 #include "avfilter.h"
-#include "framesync.h"
+#include "framesync2.h"
 
 typedef struct MaskedMergeContext {
     const AVClass *class;
diff --git a/libavfilter/vf_maskedmerge.c b/libavfilter/vf_maskedmerge.c
index cf8a56814e..54def62820 100644
--- a/libavfilter/vf_maskedmerge.c
+++ b/libavfilter/vf_maskedmerge.c
@@ -71,9 +71,9 @@ static int process_frame(FFFrameSync *fs)
     AVFrame *out, *base, *overlay, *mask;
     int ret;
 
-    if ((ret = ff_framesync_get_frame(&s->fs, 0, &base,    0)) < 0 ||
-        (ret = ff_framesync_get_frame(&s->fs, 1, &overlay, 0)) < 0 ||
-        (ret = ff_framesync_get_frame(&s->fs, 2, &mask,    0)) < 0)
+    if ((ret = ff_framesync2_get_frame(&s->fs, 0, &base,    0)) < 0 ||
+        (ret = ff_framesync2_get_frame(&s->fs, 1, &overlay, 0)) < 0 ||
+        (ret = ff_framesync2_get_frame(&s->fs, 2, &mask,    0)) < 0)
         return ret;
 
     if (ctx->is_disabled) {
@@ -232,7 +232,7 @@ static int config_output(AVFilterLink *outlink)
     if ((ret = av_image_fill_linesizes(s->linesize, outlink->format, outlink->w)) < 0)
         return ret;
 
-    if ((ret = ff_framesync_init(&s->fs, ctx, 3)) < 0)
+    if ((ret = ff_framesync2_init(&s->fs, ctx, 3)) < 0)
         return ret;
 
     in = s->fs.in;
@@ -251,44 +251,35 @@ static int config_output(AVFilterLink *outlink)
     s->fs.opaque   = s;
     s->fs.on_event = process_frame;
 
-    return ff_framesync_configure(&s->fs);
+    return ff_framesync2_configure(&s->fs);
 }
 
-static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
+static int activate(AVFilterContext *ctx)
 {
-    MaskedMergeContext *s = inlink->dst->priv;
-    return ff_framesync_filter_frame(&s->fs, inlink, buf);
-}
-
-static int request_frame(AVFilterLink *outlink)
-{
-    MaskedMergeContext *s = outlink->src->priv;
-    return ff_framesync_request_frame(&s->fs, outlink);
+    MaskedMergeContext *s = ctx->priv;
+    return ff_framesync2_activate(&s->fs);
 }
 
 static av_cold void uninit(AVFilterContext *ctx)
 {
     MaskedMergeContext *s = ctx->priv;
 
-    ff_framesync_uninit(&s->fs);
+    ff_framesync2_uninit(&s->fs);
 }
 
 static const AVFilterPad maskedmerge_inputs[] = {
     {
         .name         = "base",
         .type         = AVMEDIA_TYPE_VIDEO,
-        .filter_frame = filter_frame,
         .config_props = config_input,
     },
     {
         .name         = "overlay",
         .type         = AVMEDIA_TYPE_VIDEO,
-        .filter_frame = filter_frame,
     },
     {
         .name         = "mask",
         .type         = AVMEDIA_TYPE_VIDEO,
-        .filter_frame = filter_frame,
     },
     { NULL }
 };
@@ -298,7 +289,6 @@ static const AVFilterPad maskedmerge_outputs[] = {
         .name          = "default",
         .type          = AVMEDIA_TYPE_VIDEO,
         .config_props  = config_output,
-        .request_frame = request_frame,
     },
     { NULL }
 };
@@ -309,6 +299,7 @@ AVFilter ff_vf_maskedmerge = {
     .priv_size     = sizeof(MaskedMergeContext),
     .uninit        = uninit,
     .query_formats = query_formats,
+    .activate      = activate,
     .inputs        = maskedmerge_inputs,
     .outputs       = maskedmerge_outputs,
     .priv_class    = &maskedmerge_class,
-- 
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