doxygen: qdm2: Drop documentation for non-existing function parameters

[ffmpeg] / libavfilter / vf_scale.c

diff --git a/libavfilter/vf_scale.c b/libavfilter/vf_scale.c
index 6c5421006b27e101a9d5e79d139e2fc48d161a90..66005303f529a03cc5f11a63a29055a5340651fe 100644 (file)
--- a/libavfilter/vf_scale.c
+++ b/libavfilter/vf_scale.c
@@ -256,11 +256,14 @@ static int start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
 {
     ScaleContext *scale = link->dst->priv;
     AVFilterLink *outlink = link->dst->outputs[0];
-    AVFilterBufferRef *outpicref;
+    AVFilterBufferRef *outpicref, *for_next_filter;
     int ret = 0;
 
     if (!scale->sws) {
-        return ff_start_frame(outlink, avfilter_ref_buffer(picref, ~0));
+        outpicref = avfilter_ref_buffer(picref, ~0);
+        if (!outpicref)
+            return AVERROR(ENOMEM);
+        return ff_start_frame(outlink, outpicref);
     }
 
     scale->hsub = av_pix_fmt_descriptors[link->format].log2_chroma_w;
@@ -281,7 +284,12 @@ static int start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
               INT_MAX);
 
     scale->slice_y = 0;
-    ret = ff_start_frame(outlink, avfilter_ref_buffer(outpicref, ~0));
+    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;
@@ -291,16 +299,15 @@ static int start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
     return 0;
 }
 
-static void draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
+static int draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
 {
     ScaleContext *scale = link->dst->priv;
-    int out_h;
+    int out_h, ret;
     AVFilterBufferRef *cur_pic = link->cur_buf;
     const uint8_t *data[4];
 
     if (!scale->sws) {
-        ff_draw_slice(link->dst->outputs[0], y, h, slice_dir);
-        return;
+        return ff_draw_slice(link->dst->outputs[0], y, h, slice_dir);
     }
 
     if (scale->slice_y == 0 && slice_dir == -1)
@@ -319,9 +326,10 @@ static void draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
 
     if (slice_dir == -1)
         scale->slice_y -= out_h;
-    ff_draw_slice(link->dst->outputs[0], scale->slice_y, out_h, slice_dir);
+    ret = ff_draw_slice(link->dst->outputs[0], scale->slice_y, out_h, slice_dir);
     if (slice_dir == 1)
         scale->slice_y += out_h;
+    return ret;
 }
 
 AVFilter avfilter_vf_scale = {