libvpx: Pull from upstream

source/libvpx/vp8/common/rtcd_defs.pl

 sub vp8_common_forward_decls() {
 print <<EOF
 /*
  * VP8
  */
 
 struct blockd;
 struct macroblockd;
 struct loop_filter_info;
 
@@ skipping 445 matching lines @@
 
 add_proto qw/void vp8_short_walsh4x4/, "short *input, short *output, int pitch";
 specialize qw/vp8_short_walsh4x4 sse2 media neon_asm/;
 $vp8_short_walsh4x4_media=vp8_short_walsh4x4_armv6;
 $vp8_short_walsh4x4_neon_asm=vp8_short_walsh4x4_neon;
 
 #
 # Quantizer
 #
 add_proto qw/void vp8_regular_quantize_b/, "struct block *, struct blockd *";
-specialize qw/vp8_regular_quantize_b sse2/;
-# TODO(johann) Update sse4 implementation and re-enable
-#$vp8_regular_quantize_b_sse4_1=vp8_regular_quantize_b_sse4;
+specialize qw/vp8_regular_quantize_b sse2 sse4_1/;
 
 add_proto qw/void vp8_fast_quantize_b/, "struct block *, struct blockd *";
 specialize qw/vp8_fast_quantize_b sse2 ssse3 media neon_asm/;
 $vp8_fast_quantize_b_media=vp8_fast_quantize_b_armv6;
 $vp8_fast_quantize_b_neon_asm=vp8_fast_quantize_b_neon;
 
 add_proto qw/void vp8_regular_quantize_b_pair/, "struct block *b1, struct block *b2, struct blockd *d1, struct blockd *d2";
 # no asm yet
 
 add_proto qw/void vp8_fast_quantize_b_pair/, "struct block *b1, struct block *b2, struct blockd *d1, struct blockd *d2";
@@ skipping 73 matching lines @@
 # Denoiser filter
 #
 if (vpx_config("CONFIG_TEMPORAL_DENOISING") eq "yes") {
     add_proto qw/int vp8_denoiser_filter/, "unsigned char *mc_running_avg_y, int mc_avg_y_stride, unsigned char *running_avg_y, int avg_y_stride, unsigned char *sig, int sig_stride, unsigned int motion_magnitude, int increase_denoising";
     specialize qw/vp8_denoiser_filter sse2 neon/;
 }
 
 # End of encoder only functions
 }
 1;