avfilter: Constify all AVFilters

[ffmpeg] / libavfilter / vf_deshake.c

diff --git a/libavfilter/vf_deshake.c b/libavfilter/vf_deshake.c
index 55ce5e18a1cdca1ab016cff860b18a1ccf450d6e..4ff6a9470202db8cc3cf5b00f6adc065ffc79d1c 100644 (file)
--- a/libavfilter/vf_deshake.c
+++ b/libavfilter/vf_deshake.c
@@ -196,7 +196,7 @@ static int block_contrast(uint8_t *src, int x, int y, int stride, int blocksize)
     for (i = 0; i <= blocksize * 2; i++) {
         // We use a width of 16 here to match the sad function
         for (j = 0; j <= 15; j++) {
-            pos = (y - i) * stride + (x - j);
+            pos = (y + i) * stride + (x + j);
             if (src[pos] < lowest)
                 lowest = src[pos];
             else if (src[pos] > highest) {
@@ -330,8 +330,9 @@ static int deshake_transform_c(AVFilterContext *ctx,
 
     for (i = 0; i < 3; i++) {
         // Transform the luma and chroma planes
-        ret = avfilter_transform(in->data[i], out->data[i], in->linesize[i], out->linesize[i],
-                                 plane_w[i], plane_h[i], matrixs[i], interpolate, fill);
+        ret = ff_affine_transform(in->data[i], out->data[i], in->linesize[i],
+                                  out->linesize[i], plane_w[i], plane_h[i],
+                                  matrixs[i], interpolate, fill);
         if (ret < 0)
             return ret;
     }
@@ -354,7 +355,7 @@ static av_cold int init(AVFilterContext *ctx)
     if (deshake->filename)
         deshake->fp = fopen(deshake->filename, "w");
     if (deshake->fp)
-        fwrite("Ori x, Avg x, Fin x, Ori y, Avg y, Fin y, Ori angle, Avg angle, Fin angle, Ori zoom, Avg zoom, Fin zoom\n", sizeof(char), 104, deshake->fp);
+        fwrite("Ori x, Avg x, Fin x, Ori y, Avg y, Fin y, Ori angle, Avg angle, Fin angle, Ori zoom, Avg zoom, Fin zoom\n", 1, 104, deshake->fp);
 
     // Quadword align left edge of box for MMX code, adjust width if necessary
     // to keep right margin
@@ -421,6 +422,7 @@ static int filter_frame(AVFilterLink *link, AVFrame *in)
     const int chroma_width  = AV_CEIL_RSHIFT(link->w, desc->log2_chroma_w);
     const int chroma_height = AV_CEIL_RSHIFT(link->h, desc->log2_chroma_h);
     int aligned;
+    float transform_zoom;
 
     out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
     if (!out) {
@@ -484,7 +486,7 @@ static int filter_frame(AVFilterLink *link, AVFrame *in)
     // Write statistics to file
     if (deshake->fp) {
         snprintf(tmp, 256, "%f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f\n", orig.vec.x, deshake->avg.vec.x, t.vec.x, orig.vec.y, deshake->avg.vec.y, t.vec.y, orig.angle, deshake->avg.angle, t.angle, orig.zoom, deshake->avg.zoom, t.zoom);
-        fwrite(tmp, sizeof(char), strlen(tmp), deshake->fp);
+        fwrite(tmp, 1, strlen(tmp), deshake->fp);
     }
 
     // Turn relative current frame motion into absolute by adding it to the
@@ -505,10 +507,12 @@ static int filter_frame(AVFilterLink *link, AVFrame *in)
     deshake->last.angle = t.angle;
     deshake->last.zoom = t.zoom;
 
+    transform_zoom = 1.0 + t.zoom / 100.0;
+
     // Generate a luma transformation matrix
-    avfilter_get_matrix(t.vec.x, t.vec.y, t.angle, 1.0 + t.zoom / 100.0, matrix_y);
+    ff_get_matrix(t.vec.x, t.vec.y, t.angle, transform_zoom, transform_zoom, matrix_y);
     // Generate a chroma transformation matrix
-    avfilter_get_matrix(t.vec.x / (link->w / chroma_width), t.vec.y / (link->h / chroma_height), t.angle, 1.0 + t.zoom / 100.0, matrix_uv);
+    ff_get_matrix(t.vec.x / (link->w / chroma_width), t.vec.y / (link->h / chroma_height), t.angle, transform_zoom, transform_zoom, matrix_uv);
     // Transform the luma and chroma planes
     ret = deshake->transform(link->dst, link->w, link->h, chroma_width, chroma_height,
                              matrix_y, matrix_uv, INTERPOLATE_BILINEAR, deshake->edge, in, out);
@@ -547,7 +551,7 @@ static const AVFilterPad deshake_outputs[] = {
     { NULL }
 };
 
-AVFilter ff_vf_deshake = {
+const AVFilter ff_vf_deshake = {
     .name          = "deshake",
     .description   = NULL_IF_CONFIG_SMALL("Stabilize shaky video."),
     .priv_size     = sizeof(DeshakeContext),