libvpx: Pull from upstream

source/libvpx/vpx_scale/vpx_scale_rtcd.pl

Index: source/libvpx/vpx_scale/vpx_scale_rtcd.pl
===================================================================
--- source/libvpx/vpx_scale/vpx_scale_rtcd.pl	(revision 0)
+++ source/libvpx/vpx_scale/vpx_scale_rtcd.pl	(revision 0)
@@ -0,0 +1,34 @@
+sub vpx_scale_forward_decls() {
+print <<EOF
+struct yv12_buffer_config;
+EOF
+}
+forward_decls qw/vpx_scale_forward_decls/;
+
+# Scaler functions
+if (vpx_config("CONFIG_SPATIAL_RESAMPLING") eq "yes") {
+    add_proto qw/void vp8_horizontal_line_5_4_scale/, "const unsigned char *source, unsigned int source_width, unsigned char *dest, unsigned int dest_width";
+    add_proto qw/void vp8_vertical_band_5_4_scale/, "unsigned char *source, unsigned int src_pitch, unsigned char *dest, unsigned int dest_pitch, unsigned int dest_width";
+    add_proto qw/void vp8_horizontal_line_5_3_scale/, "const unsigned char *source, unsigned int source_width, unsigned char *dest, unsigned int dest_width";
+    add_proto qw/void vp8_vertical_band_5_3_scale/, "unsigned char *source, unsigned int src_pitch, unsigned char *dest, unsigned int dest_pitch, unsigned int dest_width";
+    add_proto qw/void vp8_horizontal_line_2_1_scale/, "const unsigned char *source, unsigned int source_width, unsigned char *dest, unsigned int dest_width";
+    add_proto qw/void vp8_vertical_band_2_1_scale/, "unsigned char *source, unsigned int src_pitch, unsigned char *dest, unsigned int dest_pitch, unsigned int dest_width";
+    add_proto qw/void vp8_vertical_band_2_1_scale_i/, "unsigned char *source, unsigned int src_pitch, unsigned char *dest, unsigned int dest_pitch, unsigned int dest_width";
+}
+
+add_proto qw/void vp8_yv12_extend_frame_borders/, "struct yv12_buffer_config *ybf";
+specialize qw/vp8_yv12_extend_frame_borders neon/;
+
+add_proto qw/void vp8_yv12_copy_frame/, "const struct yv12_buffer_config *src_ybc, struct yv12_buffer_config *dst_ybc";
+specialize qw/vp8_yv12_copy_frame neon/;
+
+add_proto qw/void vpx_yv12_copy_y/, "const struct yv12_buffer_config *src_ybc, struct yv12_buffer_config *dst_ybc";
+
+if (vpx_config("CONFIG_VP9") eq "yes") {
+    add_proto qw/void vp9_extend_frame_borders/, "struct yv12_buffer_config *ybf";
+    specialize qw/vp9_extend_frame_borders dspr2/;
+
+    add_proto qw/void vp9_extend_frame_inner_borders/, "struct yv12_buffer_config *ybf";
+    specialize qw/vp9_extend_frame_inner_borders dspr2/;
+}
+1;