lavfi/video: remove unused ff_inplace_start_frame().

libavfilter/video.c

@@ -159,42 +159,6 @@ AVFilterBufferRef *ff_get_video_buffer(AVFilterLink *link, int perms, int w, int
     return ret;
 }
 
-// for filters that support (but don't require) outpic==inpic
-int ff_inplace_start_frame(AVFilterLink *inlink, AVFilterBufferRef *inpicref)
-{
-    AVFilterLink *outlink = inlink->dst->outputs[0];
-    AVFilterBufferRef *outpicref = NULL, *for_next_filter;
-    int ret = 0;
-
-    if (inpicref->perms & AV_PERM_WRITE) {
-        outpicref = avfilter_ref_buffer(inpicref, ~0);
-        if (!outpicref)
-            return AVERROR(ENOMEM);
-    } else {
-        outpicref = ff_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
-        if (!outpicref)
-            return AVERROR(ENOMEM);
-
-        avfilter_copy_buffer_ref_props(outpicref, inpicref);
-        outpicref->video->w = outlink->w;
-        outpicref->video->h = outlink->h;
-    }
-
-    for_next_filter = avfilter_ref_buffer(outpicref, ~0);
-    if (for_next_filter)
-        ret = ff_start_frame(outlink, for_next_filter);
-    else
-        ret = AVERROR(ENOMEM);
-
-    if (ret < 0) {
-        avfilter_unref_bufferp(&outpicref);
-        return ret;
-    }
-
-    outlink->out_buf = outpicref;
-    return 0;
-}
-
 static int default_start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
 {
     AVFilterLink *outlink = NULL;

libavfilter/video.h

@@ -42,8 +42,6 @@ AVFilterBufferRef *ff_null_get_video_buffer(AVFilterLink *link, int perms, int w
 AVFilterBufferRef *ff_get_video_buffer(AVFilterLink *link, int perms,
                                        int w, int h);
 
-int ff_inplace_start_frame(AVFilterLink *link, AVFilterBufferRef *picref);
-
 /**
  * Notify the next filter of the start of a frame.
  *