libvpx: Add VP9 decoder.

source/libvpx/args.h

 /*
  *  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.
  */
 
 
 #ifndef ARGS_H
 #define ARGS_H
 #include <stdio.h>
 
-struct arg
-{
-    char                 **argv;
-    const char            *name;
-    const char            *val;
-    unsigned int           argv_step;
-    const struct arg_def  *def;
+struct arg {
+  char                 **argv;
+  const char            *name;
+  const char            *val;
+  unsigned int           argv_step;
+  const struct arg_def  *def;
 };
 
-struct arg_enum_list
-{
-    const char *name;
-    int         val;
+struct arg_enum_list {
+  const char *name;
+  int         val;
 };
 #define ARG_ENUM_LIST_END {0}
 
-typedef struct arg_def
-{
-    const char *short_name;
-    const char *long_name;
-    int         has_val;
-    const char *desc;
-    const struct arg_enum_list *enums;
+typedef struct arg_def {
+  const char *short_name;
+  const char *long_name;
+  int         has_val;
+  const char *desc;
+  const struct arg_enum_list *enums;
 } arg_def_t;
 #define ARG_DEF(s,l,v,d) {s,l,v,d, NULL}
 #define ARG_DEF_ENUM(s,l,v,d,e) {s,l,v,d,e}
 #define ARG_DEF_LIST_END {0}
 
 struct arg arg_init(char **argv);
 int arg_match(struct arg *arg_, const struct arg_def *def, char **argv);
 const char *arg_next(struct arg *arg);
 void arg_show_usage(FILE *fp, const struct arg_def *const *defs);
 char **argv_dup(int argc, const char **argv);
 
 unsigned int arg_parse_uint(const struct arg *arg);
 int arg_parse_int(const struct arg *arg);
 struct vpx_rational arg_parse_rational(const struct arg *arg);
 int arg_parse_enum_or_int(const struct arg *arg);
 #endif