From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- media/libvpx/vp8/encoder/treewriter.c | 43 +++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 media/libvpx/vp8/encoder/treewriter.c (limited to 'media/libvpx/vp8/encoder/treewriter.c') diff --git a/media/libvpx/vp8/encoder/treewriter.c b/media/libvpx/vp8/encoder/treewriter.c new file mode 100644 index 000000000..ef25f670b --- /dev/null +++ b/media/libvpx/vp8/encoder/treewriter.c @@ -0,0 +1,43 @@ +/* + * Copyright (c) 2010 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + + +#include "treewriter.h" + +static void cost( + int *const C, + vp8_tree T, + const vp8_prob *const P, + int i, + int c +) +{ + const vp8_prob p = P [i>>1]; + + do + { + const vp8_tree_index j = T[i]; + const int d = c + vp8_cost_bit(p, i & 1); + + if (j <= 0) + C[-j] = d; + else + cost(C, T, P, j, d); + } + while (++i & 1); +} +void vp8_cost_tokens(int *c, const vp8_prob *p, vp8_tree t) +{ + cost(c, t, p, 0, 0); +} +void vp8_cost_tokens2(int *c, const vp8_prob *p, vp8_tree t,int start) +{ + cost(c, t, p, start, 0); +} -- cgit v1.2.3