Remove WebM support (and deps libvpx and opus)

We've had many issues with WebM support and specifically the libvpx library
over the years, mostly due to its poor integration in Godot's buildsystem,
but without anyone really interested in improving this state.

With the new GDExtensions in Godot 4.0, we intend to move video decoding to
first-party extensions, and this would likely be done using something like
libvlc to expose more codecs.

Removing the `webm` module means we can remove libsimplewebm, libvpx and
opus, which we were only used for that purpose. Both libvpx and opus were
fairly complex pieces of the buildsystem, so this is a nice cleanup.

This also removes the compile-time dependency on `yasm`.

Fixes lots of compilation or non-working WebM issues which will be linked
in the PR.

1 files changed, 0 insertions, 42 deletions

diff --git a/thirdparty/opus/internal.c b/thirdparty/opus/internal.c
deleted file mode 100644
index 96c80def82..0000000000
--- a/thirdparty/opus/internal.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/********************************************************************
- *                                                                  *
- * THIS FILE IS PART OF THE libopusfile SOFTWARE CODEC SOURCE CODE. *
- * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
- * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
- * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
- *                                                                  *
- * THE libopusfile SOURCE CODE IS (C) COPYRIGHT 2012                *
- * by the Xiph.Org Foundation and contributors http://www.xiph.org/ *
- *                                                                  *
- ********************************************************************/
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "internal.h"
-
-#if defined(OP_ENABLE_ASSERTIONS)
-void op_fatal_impl(const char *_str,const char *_file,int _line){
-  fprintf(stderr,"Fatal (internal) error in %s, line %i: %s\n",
-   _file,_line,_str);
-  abort();
-}
-#endif
-
-/*A version of strncasecmp() that is guaranteed to only ignore the case of
-   ASCII characters.*/
-int op_strncasecmp(const char *_a,const char *_b,int _n){
-  int i;
-  for(i=0;i<_n;i++){
-    int a;
-    int b;
-    int d;
-    a=_a[i];
-    b=_b[i];
-    if(a>='a'&&a<='z')a-='a'-'A';
-    if(b>='a'&&b<='z')b-='a'-'A';
-    d=a-b;
-    if(d)return d;
-  }
-  return 0;
-}