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, 159 deletions

diff --git a/thirdparty/opus/silk/macros.h b/thirdparty/opus/silk/macros.h
deleted file mode 100644
index d3ca347520..0000000000
--- a/thirdparty/opus/silk/macros.h
+++ /dev/null
@@ -1,159 +0,0 @@
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Internet Society, IETF or IETF Trust, nor the
-names of specific contributors, may be used to endorse or promote
-products derived from this software without specific prior written
-permission.
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
-LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SILK_MACROS_H
-#define SILK_MACROS_H
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "opus_types.h"
-#include "opus_defines.h"
-#include "arch.h"
-
-#if OPUS_GNUC_PREREQ(3, 0)
-#define opus_likely(x)       (__builtin_expect(!!(x), 1))
-#define opus_unlikely(x)     (__builtin_expect(!!(x), 0))
-#else
-#define opus_likely(x)       (!!(x))
-#define opus_unlikely(x)     (!!(x))
-#endif
-
-/* This is an OPUS_INLINE header file for general platform. */
-
-/* (a32 * (opus_int32)((opus_int16)(b32))) >> 16 output have to be 32bit int */
-#if OPUS_FAST_INT64
-#define silk_SMULWB(a32, b32)            ((opus_int32)(((a32) * (opus_int64)((opus_int16)(b32))) >> 16))
-#else
-#define silk_SMULWB(a32, b32)            ((((a32) >> 16) * (opus_int32)((opus_int16)(b32))) + ((((a32) & 0x0000FFFF) * (opus_int32)((opus_int16)(b32))) >> 16))
-#endif
-
-/* a32 + (b32 * (opus_int32)((opus_int16)(c32))) >> 16 output have to be 32bit int */
-#if OPUS_FAST_INT64
-#define silk_SMLAWB(a32, b32, c32)       ((opus_int32)((a32) + (((b32) * (opus_int64)((opus_int16)(c32))) >> 16)))
-#else
-#define silk_SMLAWB(a32, b32, c32)       ((a32) + ((((b32) >> 16) * (opus_int32)((opus_int16)(c32))) + ((((b32) & 0x0000FFFF) * (opus_int32)((opus_int16)(c32))) >> 16)))
-#endif
-
-/* (a32 * (b32 >> 16)) >> 16 */
-#if OPUS_FAST_INT64
-#define silk_SMULWT(a32, b32)            ((opus_int32)(((a32) * (opus_int64)((b32) >> 16)) >> 16))
-#else
-#define silk_SMULWT(a32, b32)            (((a32) >> 16) * ((b32) >> 16) + ((((a32) & 0x0000FFFF) * ((b32) >> 16)) >> 16))
-#endif
-
-/* a32 + (b32 * (c32 >> 16)) >> 16 */
-#if OPUS_FAST_INT64
-#define silk_SMLAWT(a32, b32, c32)       ((opus_int32)((a32) + (((b32) * ((opus_int64)(c32) >> 16)) >> 16)))
-#else
-#define silk_SMLAWT(a32, b32, c32)       ((a32) + (((b32) >> 16) * ((c32) >> 16)) + ((((b32) & 0x0000FFFF) * ((c32) >> 16)) >> 16))
-#endif
-
-/* (opus_int32)((opus_int16)(a3))) * (opus_int32)((opus_int16)(b32)) output have to be 32bit int */
-#define silk_SMULBB(a32, b32)            ((opus_int32)((opus_int16)(a32)) * (opus_int32)((opus_int16)(b32)))
-
-/* a32 + (opus_int32)((opus_int16)(b32)) * (opus_int32)((opus_int16)(c32)) output have to be 32bit int */
-#define silk_SMLABB(a32, b32, c32)       ((a32) + ((opus_int32)((opus_int16)(b32))) * (opus_int32)((opus_int16)(c32)))
-
-/* (opus_int32)((opus_int16)(a32)) * (b32 >> 16) */
-#define silk_SMULBT(a32, b32)            ((opus_int32)((opus_int16)(a32)) * ((b32) >> 16))
-
-/* a32 + (opus_int32)((opus_int16)(b32)) * (c32 >> 16) */
-#define silk_SMLABT(a32, b32, c32)       ((a32) + ((opus_int32)((opus_int16)(b32))) * ((c32) >> 16))
-
-/* a64 + (b32 * c32) */
-#define silk_SMLAL(a64, b32, c32)        (silk_ADD64((a64), ((opus_int64)(b32) * (opus_int64)(c32))))
-
-/* (a32 * b32) >> 16 */
-#if OPUS_FAST_INT64
-#define silk_SMULWW(a32, b32)            ((opus_int32)(((opus_int64)(a32) * (b32)) >> 16))
-#else
-#define silk_SMULWW(a32, b32)            silk_MLA(silk_SMULWB((a32), (b32)), (a32), silk_RSHIFT_ROUND((b32), 16))
-#endif
-
-/* a32 + ((b32 * c32) >> 16) */
-#if OPUS_FAST_INT64
-#define silk_SMLAWW(a32, b32, c32)       ((opus_int32)((a32) + (((opus_int64)(b32) * (c32)) >> 16)))
-#else
-#define silk_SMLAWW(a32, b32, c32)       silk_MLA(silk_SMLAWB((a32), (b32), (c32)), (b32), silk_RSHIFT_ROUND((c32), 16))
-#endif
-
-/* add/subtract with output saturated */
-#define silk_ADD_SAT32(a, b)             ((((opus_uint32)(a) + (opus_uint32)(b)) & 0x80000000) == 0 ?                              \
-                                        ((((a) & (b)) & 0x80000000) != 0 ? silk_int32_MIN : (a)+(b)) :   \
-                                        ((((a) | (b)) & 0x80000000) == 0 ? silk_int32_MAX : (a)+(b)) )
-
-#define silk_SUB_SAT32(a, b)             ((((opus_uint32)(a)-(opus_uint32)(b)) & 0x80000000) == 0 ?                                        \
-                                        (( (a) & ((b)^0x80000000) & 0x80000000) ? silk_int32_MIN : (a)-(b)) :    \
-                                        ((((a)^0x80000000) & (b)  & 0x80000000) ? silk_int32_MAX : (a)-(b)) )
-
-#if defined(MIPSr1_ASM)
-#include "mips/macros_mipsr1.h"
-#endif
-
-#include "ecintrin.h"
-#ifndef OVERRIDE_silk_CLZ16
-static OPUS_INLINE opus_int32 silk_CLZ16(opus_int16 in16)
-{
-    return 32 - EC_ILOG(in16<<16|0x8000);
-}
-#endif
-
-#ifndef OVERRIDE_silk_CLZ32
-static OPUS_INLINE opus_int32 silk_CLZ32(opus_int32 in32)
-{
-    return in32 ? 32 - EC_ILOG(in32) : 32;
-}
-#endif
-
-/* Row based */
-#define matrix_ptr(Matrix_base_adr, row, column, N) \
-    (*((Matrix_base_adr) + ((row)*(N)+(column))))
-#define matrix_adr(Matrix_base_adr, row, column, N) \
-      ((Matrix_base_adr) + ((row)*(N)+(column)))
-
-/* Column based */
-#ifndef matrix_c_ptr
-#   define matrix_c_ptr(Matrix_base_adr, row, column, M) \
-    (*((Matrix_base_adr) + ((row)+(M)*(column))))
-#endif
-
-#ifdef OPUS_ARM_INLINE_ASM
-#include "arm/macros_armv4.h"
-#endif
-
-#ifdef OPUS_ARM_INLINE_EDSP
-#include "arm/macros_armv5e.h"
-#endif
-
-#ifdef OPUS_ARM_PRESUME_AARCH64_NEON_INTR
-#include "arm/macros_arm64.h"
-#endif
-
-#endif /* SILK_MACROS_H */
-