set SDLMIXER_VENDORED to ON and vendor the required libraries into libs/SDL3_mixer/external

disable SDLMIXER_VORBIS_VORBISFILE add ogg v1.3.5-SDL add opus v1.4.x-SDL add opusfile v0.13-git-SDL
2026-04-13 11:20:08 +02:00
parent 85d1832a0c
commit 6ac2b1fde0
588 changed files with 133445 additions and 11 deletions
@@ -0,0 +1,42 @@
+/********************************************************************
+ *                                                                  *
+ * 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 2012-2020           *
+ * by the Xiph.Org Foundation and contributors https://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;
+}