lavc: add Ut Video encoder

Signed-off-by: Anton Khirnov <anton@khirnov.net>

1 files changed, 39 insertions, 0 deletions

diff --git a/libavcodec/utvideo.c b/libavcodec/utvideo.c
new file mode 100644
index 0000000000..eb5a924222
--- /dev/null
+++ b/libavcodec/utvideo.c
@@ -0,0 +1,39 @@
+/*
+ * Common Ut Video code
+ * Copyright (c) 2011 Konstantin Shishkov
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Common Ut Video code
+ */
+
+#include "utvideo.h"
+
+const int ff_ut_pred_order[5] = {
+    PRED_LEFT, PRED_MEDIAN, PRED_MEDIAN, PRED_NONE, PRED_GRADIENT
+};
+
+const int ff_ut_rgb_order[4]  = { 1, 2, 0, 3 }; // G, B, R, A
+
+int ff_ut_huff_cmp_len(const void *a, const void *b)
+{
+    const HuffEntry *aa = a, *bb = b;
+    return (aa->len - bb->len)*256 + aa->sym - bb->sym;
+}