libwebp: Sync with upstream 1.3.0

47 files changed, 377 insertions, 268 deletions

diff --git a/modules/webp/SCsub b/modules/webp/SCsub
index 72ad1ea5e4..e78236a60b 100644
--- a/modules/webp/SCsub
+++ b/modules/webp/SCsub
@@ -13,6 +13,7 @@ if env["builtin_libwebp"]:
     thirdparty_dir = "#thirdparty/libwebp/"
     thirdparty_sources = [
         "sharpyuv/sharpyuv.c",
+        "sharpyuv/sharpyuv_cpu.c",
         "sharpyuv/sharpyuv_csp.c",
         "sharpyuv/sharpyuv_dsp.c",
         "sharpyuv/sharpyuv_gamma.c",
diff --git a/thirdparty/README.md b/thirdparty/README.md
index 38001b8782..d5c88f5c03 100644
--- a/thirdparty/README.md
+++ b/thirdparty/README.md
@@ -346,7 +346,7 @@ Files extracted from upstream source:
 ## libwebp
 
 - Upstream: https://chromium.googlesource.com/webm/libwebp/
-- Version: 1.2.4 (0d1f12546bd803099a60c070517a552483f3790e, 2022)
+- Version: 1.3.0 (b557776962a3dcc985d83bd4ed94e1e2e50d0fa2, 2022)
 - License: BSD-3-Clause
 
 Files extracted from upstream source:
diff --git a/thirdparty/libwebp/AUTHORS b/thirdparty/libwebp/AUTHORS
index 3efcbe25b6..2f0c537d1c 100644
--- a/thirdparty/libwebp/AUTHORS
+++ b/thirdparty/libwebp/AUTHORS
@@ -11,11 +11,13 @@ Contributors:
 - Djordje Pesut (djordje dot pesut at imgtec dot com)
 - Frank Barchard (fbarchard at google dot com)
 - Hui Su (huisu at google dot com)
+- H. Vetinari (h dot vetinari at gmx dot com)
 - Ilya Kurdyukov (jpegqs at gmail dot com)
 - Ingvar Stepanyan (rreverser at google dot com)
 - James Zern (jzern at google dot com)
 - Jan Engelhardt (jengelh at medozas dot de)
 - Jehan (jehan at girinstud dot io)
+- Jeremy Maitin-Shepard (jbms at google dot com)
 - Johann Koenig (johann dot koenig at duck dot com)
 - Jovan Zelincevic (jovan dot zelincevic at imgtec dot com)
 - Jyrki Alakuijala (jyrki at google dot com)
diff --git a/thirdparty/libwebp/sharpyuv/sharpyuv.c b/thirdparty/libwebp/sharpyuv/sharpyuv.c
index 8b3ab7216b..7de34fb0b2 100644
--- a/thirdparty/libwebp/sharpyuv/sharpyuv.c
+++ b/thirdparty/libwebp/sharpyuv/sharpyuv.c
@@ -15,16 +15,22 @@
 
 #include <assert.h>
 #include <limits.h>
-#include <math.h>
+#include <stddef.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include "src/webp/types.h"
-#include "src/dsp/cpu.h"
+#include "sharpyuv/sharpyuv_cpu.h"
 #include "sharpyuv/sharpyuv_dsp.h"
 #include "sharpyuv/sharpyuv_gamma.h"
 
 //------------------------------------------------------------------------------
+
+int SharpYuvGetVersion(void) {
+  return SHARPYUV_VERSION;
+}
+
+//------------------------------------------------------------------------------
 // Sharp RGB->YUV conversion
 
 static const int kNumIterations = 4;
@@ -414,24 +420,45 @@ static int DoSharpArgbToYuv(const uint8_t* r_ptr, const uint8_t* g_ptr,
 }
 #undef SAFE_ALLOC
 
+#if defined(WEBP_USE_THREAD) && !defined(_WIN32)
+#include <pthread.h>  // NOLINT
+
+#define LOCK_ACCESS \
+    static pthread_mutex_t sharpyuv_lock = PTHREAD_MUTEX_INITIALIZER; \
+    if (pthread_mutex_lock(&sharpyuv_lock)) return
+#define UNLOCK_ACCESS_AND_RETURN                  \
+    do {                                          \
+      (void)pthread_mutex_unlock(&sharpyuv_lock); \
+      return;                                     \
+    } while (0)
+#else  // !(defined(WEBP_USE_THREAD) && !defined(_WIN32))
+#define LOCK_ACCESS do {} while (0)
+#define UNLOCK_ACCESS_AND_RETURN return
+#endif  // defined(WEBP_USE_THREAD) && !defined(_WIN32)
+
 // Hidden exported init function.
-// By default SharpYuvConvert calls it with NULL. If needed, users can declare
-// it as extern and call it with a VP8CPUInfo function.
-extern void SharpYuvInit(VP8CPUInfo cpu_info_func);
+// By default SharpYuvConvert calls it with SharpYuvGetCPUInfo. If needed,
+// users can declare it as extern and call it with an alternate VP8CPUInfo
+// function.
+SHARPYUV_EXTERN void SharpYuvInit(VP8CPUInfo cpu_info_func);
 void SharpYuvInit(VP8CPUInfo cpu_info_func) {
   static volatile VP8CPUInfo sharpyuv_last_cpuinfo_used =
       (VP8CPUInfo)&sharpyuv_last_cpuinfo_used;
-  const int initialized =
-      (sharpyuv_last_cpuinfo_used != (VP8CPUInfo)&sharpyuv_last_cpuinfo_used);
-  if (cpu_info_func == NULL && initialized) return;
-  if (sharpyuv_last_cpuinfo_used == cpu_info_func) return;
-
-  SharpYuvInitDsp(cpu_info_func);
-  if (!initialized) {
-    SharpYuvInitGammaTables();
+  LOCK_ACCESS;
+  // Only update SharpYuvGetCPUInfo when called from external code to avoid a
+  // race on reading the value in SharpYuvConvert().
+  if (cpu_info_func != (VP8CPUInfo)&SharpYuvGetCPUInfo) {
+    SharpYuvGetCPUInfo = cpu_info_func;
+  }
+  if (sharpyuv_last_cpuinfo_used == SharpYuvGetCPUInfo) {
+    UNLOCK_ACCESS_AND_RETURN;
   }
 
-  sharpyuv_last_cpuinfo_used = cpu_info_func;
+  SharpYuvInitDsp();
+  SharpYuvInitGammaTables();
+
+  sharpyuv_last_cpuinfo_used = SharpYuvGetCPUInfo;
+  UNLOCK_ACCESS_AND_RETURN;
 }
 
 int SharpYuvConvert(const void* r_ptr, const void* g_ptr,
@@ -467,7 +494,8 @@ int SharpYuvConvert(const void* r_ptr, const void* g_ptr,
     // Stride should be even for uint16_t buffers.
     return 0;
   }
-  SharpYuvInit(NULL);
+  // The address of the function pointer is used to avoid a read race.
+  SharpYuvInit((VP8CPUInfo)&SharpYuvGetCPUInfo);
 
   // Add scaling factor to go from rgb_bit_depth to yuv_bit_depth, to the
   // rgb->yuv conversion matrix.
diff --git a/thirdparty/libwebp/sharpyuv/sharpyuv.h b/thirdparty/libwebp/sharpyuv/sharpyuv.h
index 9386ea2185..181b20a0bc 100644
--- a/thirdparty/libwebp/sharpyuv/sharpyuv.h
+++ b/thirdparty/libwebp/sharpyuv/sharpyuv.h
@@ -12,15 +12,31 @@
 #ifndef WEBP_SHARPYUV_SHARPYUV_H_
 #define WEBP_SHARPYUV_SHARPYUV_H_
 
-#include <inttypes.h>
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+#ifndef SHARPYUV_EXTERN
+#ifdef WEBP_EXTERN
+#define SHARPYUV_EXTERN WEBP_EXTERN
+#else
+// This explicitly marks library functions and allows for changing the
+// signature for e.g., Windows DLL builds.
+#if defined(__GNUC__) && __GNUC__ >= 4
+#define SHARPYUV_EXTERN extern __attribute__((visibility("default")))
+#else
+#if defined(_MSC_VER) && defined(WEBP_DLL)
+#define SHARPYUV_EXTERN __declspec(dllexport)
+#else
+#define SHARPYUV_EXTERN extern
+#endif /* _MSC_VER && WEBP_DLL */
+#endif /* __GNUC__ >= 4 */
+#endif /* WEBP_EXTERN */
+#endif /* SHARPYUV_EXTERN */
+
 // SharpYUV API version following the convention from semver.org
 #define SHARPYUV_VERSION_MAJOR 0
-#define SHARPYUV_VERSION_MINOR 1
+#define SHARPYUV_VERSION_MINOR 2
 #define SHARPYUV_VERSION_PATCH 0
 // Version as a uint32_t. The major number is the high 8 bits.
 // The minor number is the middle 8 bits. The patch number is the low 16 bits.
@@ -30,6 +46,10 @@ extern "C" {
   SHARPYUV_MAKE_VERSION(SHARPYUV_VERSION_MAJOR, SHARPYUV_VERSION_MINOR, \
                         SHARPYUV_VERSION_PATCH)
 
+// Returns the library's version number, packed in hexadecimal. See
+// SHARPYUV_VERSION.
+SHARPYUV_EXTERN int SharpYuvGetVersion(void);
+
 // RGB to YUV conversion matrix, in 16 bit fixed point.
 // y = rgb_to_y[0] * r + rgb_to_y[1] * g + rgb_to_y[2] * b + rgb_to_y[3]
 // u = rgb_to_u[0] * r + rgb_to_u[1] * g + rgb_to_u[2] * b + rgb_to_u[3]
@@ -65,11 +85,13 @@ typedef struct {
 //     adjacent pixels on the y, u and v channels. If yuv_bit_depth > 8, they
 //     should be multiples of 2.
 // width, height: width and height of the image in pixels
-int SharpYuvConvert(const void* r_ptr, const void* g_ptr, const void* b_ptr,
-                    int rgb_step, int rgb_stride, int rgb_bit_depth,
-                    void* y_ptr, int y_stride, void* u_ptr, int u_stride,
-                    void* v_ptr, int v_stride, int yuv_bit_depth, int width,
-                    int height, const SharpYuvConversionMatrix* yuv_matrix);
+SHARPYUV_EXTERN int SharpYuvConvert(const void* r_ptr, const void* g_ptr,
+                                    const void* b_ptr, int rgb_step,
+                                    int rgb_stride, int rgb_bit_depth,
+                                    void* y_ptr, int y_stride, void* u_ptr,
+                                    int u_stride, void* v_ptr, int v_stride,
+                                    int yuv_bit_depth, int width, int height,
+                                    const SharpYuvConversionMatrix* yuv_matrix);
 
 // TODO(b/194336375): Add YUV444 to YUV420 conversion. Maybe also add 422
 // support (it's rarely used in practice, especially for images).
diff --git a/thirdparty/libwebp/sharpyuv/sharpyuv_cpu.c b/thirdparty/libwebp/sharpyuv/sharpyuv_cpu.c
new file mode 100644
index 0000000000..29425a0c49
--- /dev/null
+++ b/thirdparty/libwebp/sharpyuv/sharpyuv_cpu.c
@@ -0,0 +1,14 @@
+// Copyright 2022 Google Inc. All Rights Reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the COPYING 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.
+// -----------------------------------------------------------------------------
+//
+#include "sharpyuv/sharpyuv_cpu.h"
+
+// Include src/dsp/cpu.c to create SharpYuvGetCPUInfo from VP8GetCPUInfo. The
+// function pointer is renamed in sharpyuv_cpu.h.
+#include "src/dsp/cpu.c"
diff --git a/thirdparty/libwebp/sharpyuv/sharpyuv_cpu.h b/thirdparty/libwebp/sharpyuv/sharpyuv_cpu.h
new file mode 100644
index 0000000000..176ca3eb16
--- /dev/null
+++ b/thirdparty/libwebp/sharpyuv/sharpyuv_cpu.h
@@ -0,0 +1,22 @@
+// Copyright 2022 Google Inc. All Rights Reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the COPYING 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 WEBP_SHARPYUV_SHARPYUV_CPU_H_
+#define WEBP_SHARPYUV_SHARPYUV_CPU_H_
+
+#include "sharpyuv/sharpyuv.h"
+
+// Avoid exporting SharpYuvGetCPUInfo in shared object / DLL builds.
+// SharpYuvInit() replaces the use of the function pointer.
+#undef WEBP_EXTERN
+#define WEBP_EXTERN extern
+#define VP8GetCPUInfo SharpYuvGetCPUInfo
+#include "src/dsp/cpu.h"
+
+#endif  // WEBP_SHARPYUV_SHARPYUV_CPU_H_
diff --git a/thirdparty/libwebp/sharpyuv/sharpyuv_csp.c b/thirdparty/libwebp/sharpyuv/sharpyuv_csp.c
index 5334fa64fa..0ad22be945 100644
--- a/thirdparty/libwebp/sharpyuv/sharpyuv_csp.c
+++ b/thirdparty/libwebp/sharpyuv/sharpyuv_csp.c
@@ -13,7 +13,7 @@
 
 #include <assert.h>
 #include <math.h>
-#include <string.h>
+#include <stddef.h>
 
 static int ToFixed16(float f) { return (int)floor(f * (1 << 16) + 0.5f); }
 
diff --git a/thirdparty/libwebp/sharpyuv/sharpyuv_csp.h b/thirdparty/libwebp/sharpyuv/sharpyuv_csp.h
index 63c99ef5cd..3214e3ac60 100644
--- a/thirdparty/libwebp/sharpyuv/sharpyuv_csp.h
+++ b/thirdparty/libwebp/sharpyuv/sharpyuv_csp.h
@@ -35,8 +35,9 @@ typedef struct {
 } SharpYuvColorSpace;
 
 // Fills in 'matrix' for the given YUVColorSpace.
-void SharpYuvComputeConversionMatrix(const SharpYuvColorSpace* yuv_color_space,
-                                     SharpYuvConversionMatrix* matrix);
+SHARPYUV_EXTERN void SharpYuvComputeConversionMatrix(
+    const SharpYuvColorSpace* yuv_color_space,
+    SharpYuvConversionMatrix* matrix);
 
 // Enums for precomputed conversion matrices.
 typedef enum {
@@ -49,7 +50,7 @@ typedef enum {
 } SharpYuvMatrixType;
 
 // Returns a pointer to a matrix for one of the predefined colorspaces.
-const SharpYuvConversionMatrix* SharpYuvGetConversionMatrix(
+SHARPYUV_EXTERN const SharpYuvConversionMatrix* SharpYuvGetConversionMatrix(
     SharpYuvMatrixType matrix_type);
 
 #ifdef __cplusplus
diff --git a/thirdparty/libwebp/sharpyuv/sharpyuv_dsp.c b/thirdparty/libwebp/sharpyuv/sharpyuv_dsp.c
index 956fa7ce55..31c272c408 100644
--- a/thirdparty/libwebp/sharpyuv/sharpyuv_dsp.c
+++ b/thirdparty/libwebp/sharpyuv/sharpyuv_dsp.c
@@ -16,7 +16,7 @@
 #include <assert.h>
 #include <stdlib.h>
 
-#include "src/dsp/cpu.h"
+#include "sharpyuv/sharpyuv_cpu.h"
 
 //-----------------------------------------------------------------------------
 
@@ -75,23 +75,24 @@ void (*SharpYuvFilterRow)(const int16_t* A, const int16_t* B, int len,
 extern void InitSharpYuvSSE2(void);
 extern void InitSharpYuvNEON(void);
 
-void SharpYuvInitDsp(VP8CPUInfo cpu_info_func) {
-  (void)cpu_info_func;
-
+void SharpYuvInitDsp(void) {
 #if !WEBP_NEON_OMIT_C_CODE
   SharpYuvUpdateY = SharpYuvUpdateY_C;
   SharpYuvUpdateRGB = SharpYuvUpdateRGB_C;
   SharpYuvFilterRow = SharpYuvFilterRow_C;
 #endif
 
+  if (SharpYuvGetCPUInfo != NULL) {
 #if defined(WEBP_HAVE_SSE2)
-  if (cpu_info_func == NULL || cpu_info_func(kSSE2)) {
-    InitSharpYuvSSE2();
-  }
+    if (SharpYuvGetCPUInfo(kSSE2)) {
+      InitSharpYuvSSE2();
+    }
 #endif  // WEBP_HAVE_SSE2
+  }
 
 #if defined(WEBP_HAVE_NEON)
-  if (WEBP_NEON_OMIT_C_CODE || cpu_info_func == NULL || cpu_info_func(kNEON)) {
+  if (WEBP_NEON_OMIT_C_CODE ||
+      (SharpYuvGetCPUInfo != NULL && SharpYuvGetCPUInfo(kNEON))) {
     InitSharpYuvNEON();
   }
 #endif  // WEBP_HAVE_NEON
diff --git a/thirdparty/libwebp/sharpyuv/sharpyuv_dsp.h b/thirdparty/libwebp/sharpyuv/sharpyuv_dsp.h
index e561d8d3d0..805fbadbf6 100644
--- a/thirdparty/libwebp/sharpyuv/sharpyuv_dsp.h
+++ b/thirdparty/libwebp/sharpyuv/sharpyuv_dsp.h
@@ -12,9 +12,8 @@
 #ifndef WEBP_SHARPYUV_SHARPYUV_DSP_H_
 #define WEBP_SHARPYUV_SHARPYUV_DSP_H_
 
-#include <stdint.h>
-
-#include "src/dsp/cpu.h"
+#include "sharpyuv/sharpyuv_cpu.h"
+#include "src/webp/types.h"
 
 extern uint64_t (*SharpYuvUpdateY)(const uint16_t* src, const uint16_t* ref,
                                    uint16_t* dst, int len, int bit_depth);
@@ -24,6 +23,6 @@ extern void (*SharpYuvFilterRow)(const int16_t* A, const int16_t* B, int len,
                                  const uint16_t* best_y, uint16_t* out,
                                  int bit_depth);
 
-void SharpYuvInitDsp(VP8CPUInfo cpu_info_func);
+void SharpYuvInitDsp(void);
 
 #endif  // WEBP_SHARPYUV_SHARPYUV_DSP_H_
diff --git a/thirdparty/libwebp/sharpyuv/sharpyuv_gamma.c b/thirdparty/libwebp/sharpyuv/sharpyuv_gamma.c
index 05b5436f83..20ab2da6bc 100644
--- a/thirdparty/libwebp/sharpyuv/sharpyuv_gamma.c
+++ b/thirdparty/libwebp/sharpyuv/sharpyuv_gamma.c
@@ -13,7 +13,6 @@
 
 #include <assert.h>
 #include <math.h>
-#include <stdint.h>
 
 #include "src/webp/types.h"
 
diff --git a/thirdparty/libwebp/sharpyuv/sharpyuv_gamma.h b/thirdparty/libwebp/sharpyuv/sharpyuv_gamma.h
index 2f1a3ff4a0..d13aff59e1 100644
--- a/thirdparty/libwebp/sharpyuv/sharpyuv_gamma.h
+++ b/thirdparty/libwebp/sharpyuv/sharpyuv_gamma.h
@@ -12,7 +12,7 @@
 #ifndef WEBP_SHARPYUV_SHARPYUV_GAMMA_H_
 #define WEBP_SHARPYUV_SHARPYUV_GAMMA_H_
 
-#include <stdint.h>
+#include "src/webp/types.h"
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/thirdparty/libwebp/sharpyuv/sharpyuv_neon.c b/thirdparty/libwebp/sharpyuv/sharpyuv_neon.c
index 5cf6aaffb0..5840914865 100644
--- a/thirdparty/libwebp/sharpyuv/sharpyuv_neon.c
+++ b/thirdparty/libwebp/sharpyuv/sharpyuv_neon.c
@@ -17,11 +17,6 @@
 #include <assert.h>
 #include <stdlib.h>
 #include <arm_neon.h>
-#endif
-
-extern void InitSharpYuvNEON(void);
-
-#if defined(WEBP_USE_NEON)
 
 static uint16_t clip_NEON(int v, int max) {
   return (v < 0) ? 0 : (v > max) ? max : (uint16_t)v;
@@ -169,6 +164,8 @@ static void SharpYuvFilterRow_NEON(const int16_t* A, const int16_t* B, int len,
 
 //------------------------------------------------------------------------------
 
+extern void InitSharpYuvNEON(void);
+
 WEBP_TSAN_IGNORE_FUNCTION void InitSharpYuvNEON(void) {
   SharpYuvUpdateY = SharpYuvUpdateY_NEON;
   SharpYuvUpdateRGB = SharpYuvUpdateRGB_NEON;
@@ -177,6 +174,8 @@ WEBP_TSAN_IGNORE_FUNCTION void InitSharpYuvNEON(void) {
 
 #else  // !WEBP_USE_NEON
 
+extern void InitSharpYuvNEON(void);
+
 void InitSharpYuvNEON(void) {}
 
 #endif  // WEBP_USE_NEON
diff --git a/thirdparty/libwebp/sharpyuv/sharpyuv_sse2.c b/thirdparty/libwebp/sharpyuv/sharpyuv_sse2.c
index 1943873748..9744d1bb6c 100644
--- a/thirdparty/libwebp/sharpyuv/sharpyuv_sse2.c
+++ b/thirdparty/libwebp/sharpyuv/sharpyuv_sse2.c
@@ -16,11 +16,6 @@
 #if defined(WEBP_USE_SSE2)
 #include <stdlib.h>
 #include <emmintrin.h>
-#endif
-
-extern void InitSharpYuvSSE2(void);
-
-#if defined(WEBP_USE_SSE2)
 
 static uint16_t clip_SSE2(int v, int max) {
   return (v < 0) ? 0 : (v > max) ? max : (uint16_t)v;
@@ -199,6 +194,8 @@ WEBP_TSAN_IGNORE_FUNCTION void InitSharpYuvSSE2(void) {
 }
 #else  // !WEBP_USE_SSE2
 
+extern void InitSharpYuvSSE2(void);
+
 void InitSharpYuvSSE2(void) {}
 
 #endif  // WEBP_USE_SSE2
diff --git a/thirdparty/libwebp/src/dec/vp8i_dec.h b/thirdparty/libwebp/src/dec/vp8i_dec.h
index 30c1bd3ef9..83791ecd25 100644
--- a/thirdparty/libwebp/src/dec/vp8i_dec.h
+++ b/thirdparty/libwebp/src/dec/vp8i_dec.h
@@ -31,8 +31,8 @@ extern "C" {
 
 // version numbers
 #define DEC_MAJ_VERSION 1
-#define DEC_MIN_VERSION 2
-#define DEC_REV_VERSION 4
+#define DEC_MIN_VERSION 3
+#define DEC_REV_VERSION 0
 
 // YUV-cache parameters. Cache is 32-bytes wide (= one cacheline).
 // Constraints are: We need to store one 16x16 block of luma samples (y),
diff --git a/thirdparty/libwebp/src/dec/vp8l_dec.c b/thirdparty/libwebp/src/dec/vp8l_dec.c
index 1348055128..c0ea0181e5 100644
--- a/thirdparty/libwebp/src/dec/vp8l_dec.c
+++ b/thirdparty/libwebp/src/dec/vp8l_dec.c
@@ -1336,7 +1336,7 @@ static int ReadTransform(int* const xsize, int const* ysize,
        ok = ok && ExpandColorMap(num_colors, transform);
       break;
     }
-    case SUBTRACT_GREEN:
+    case SUBTRACT_GREEN_TRANSFORM:
       break;
     default:
       assert(0);    // can't happen
diff --git a/thirdparty/libwebp/src/dec/webp_dec.c b/thirdparty/libwebp/src/dec/webp_dec.c
index 77a54c55d2..3f4f7bb659 100644
--- a/thirdparty/libwebp/src/dec/webp_dec.c
+++ b/thirdparty/libwebp/src/dec/webp_dec.c
@@ -179,7 +179,7 @@ static VP8StatusCode ParseOptionalChunks(const uint8_t** const data,
       return VP8_STATUS_BITSTREAM_ERROR;          // Not a valid chunk size.
     }
     // For odd-sized chunk-payload, there's one byte padding at the end.
-    disk_chunk_size = (CHUNK_HEADER_SIZE + chunk_size + 1) & ~1;
+    disk_chunk_size = (CHUNK_HEADER_SIZE + chunk_size + 1) & ~1u;
     total_size += disk_chunk_size;
 
     // Check that total bytes skipped so far does not exceed riff_size.
diff --git a/thirdparty/libwebp/src/demux/demux.c b/thirdparty/libwebp/src/demux/demux.c
index 41387ec2d6..324e5eb993 100644
--- a/thirdparty/libwebp/src/demux/demux.c
+++ b/thirdparty/libwebp/src/demux/demux.c
@@ -24,8 +24,8 @@
 #include "src/webp/format_constants.h"
 
 #define DMUX_MAJ_VERSION 1
-#define DMUX_MIN_VERSION 2
-#define DMUX_REV_VERSION 4
+#define DMUX_MIN_VERSION 3
+#define DMUX_REV_VERSION 0
 
 typedef struct {
   size_t start_;        // start location of the data
diff --git a/thirdparty/libwebp/src/dsp/alpha_processing_sse2.c b/thirdparty/libwebp/src/dsp/alpha_processing_sse2.c
index a5f8c9f7c7..f0843d0feb 100644
--- a/thirdparty/libwebp/src/dsp/alpha_processing_sse2.c
+++ b/thirdparty/libwebp/src/dsp/alpha_processing_sse2.c
@@ -26,8 +26,8 @@ static int DispatchAlpha_SSE2(const uint8_t* WEBP_RESTRICT alpha,
   uint32_t alpha_and = 0xff;
   int i, j;
   const __m128i zero = _mm_setzero_si128();
-  const __m128i rgb_mask = _mm_set1_epi32(0xffffff00u);  // to preserve RGB
-  const __m128i all_0xff = _mm_set_epi32(0, 0, ~0u, ~0u);
+  const __m128i rgb_mask = _mm_set1_epi32((int)0xffffff00);  // to preserve RGB
+  const __m128i all_0xff = _mm_set_epi32(0, 0, ~0, ~0);
   __m128i all_alphas = all_0xff;
 
   // We must be able to access 3 extra bytes after the last written byte
@@ -106,8 +106,8 @@ static int ExtractAlpha_SSE2(const uint8_t* WEBP_RESTRICT argb, int argb_stride,
   // value is not 0xff if any of the alpha[] is not equal to 0xff.
   uint32_t alpha_and = 0xff;
   int i, j;
-  const __m128i a_mask = _mm_set1_epi32(0xffu);  // to preserve alpha
-  const __m128i all_0xff = _mm_set_epi32(0, 0, ~0u, ~0u);
+  const __m128i a_mask = _mm_set1_epi32(0xff);  // to preserve alpha
+  const __m128i all_0xff = _mm_set_epi32(0, 0, ~0, ~0);
   __m128i all_alphas = all_0xff;
 
   // We must be able to access 3 extra bytes after the last written byte
@@ -178,7 +178,7 @@ static int ExtractAlpha_SSE2(const uint8_t* WEBP_RESTRICT argb, int argb_stride,
 static void ApplyAlphaMultiply_SSE2(uint8_t* rgba, int alpha_first,
                                     int w, int h, int stride) {
   const __m128i zero = _mm_setzero_si128();
-  const __m128i kMult = _mm_set1_epi16(0x8081u);
+  const __m128i kMult = _mm_set1_epi16((short)0x8081);
   const __m128i kMask = _mm_set_epi16(0, 0xff, 0xff, 0, 0, 0xff, 0xff, 0);
   const int kSpan = 4;
   while (h-- > 0) {
@@ -267,7 +267,7 @@ static int HasAlpha32b_SSE2(const uint8_t* src, int length) {
 }
 
 static void AlphaReplace_SSE2(uint32_t* src, int length, uint32_t color) {
-  const __m128i m_color = _mm_set1_epi32(color);
+  const __m128i m_color = _mm_set1_epi32((int)color);
   const __m128i zero = _mm_setzero_si128();
   int i = 0;
   for (; i + 8 <= length; i += 8) {
diff --git a/thirdparty/libwebp/src/dsp/alpha_processing_sse41.c b/thirdparty/libwebp/src/dsp/alpha_processing_sse41.c
index cdf877ce49..1156ac3417 100644
--- a/thirdparty/libwebp/src/dsp/alpha_processing_sse41.c
+++ b/thirdparty/libwebp/src/dsp/alpha_processing_sse41.c
@@ -26,7 +26,7 @@ static int ExtractAlpha_SSE41(const uint8_t* WEBP_RESTRICT argb,
   // value is not 0xff if any of the alpha[] is not equal to 0xff.
   uint32_t alpha_and = 0xff;
   int i, j;
-  const __m128i all_0xff = _mm_set1_epi32(~0u);
+  const __m128i all_0xff = _mm_set1_epi32(~0);
   __m128i all_alphas = all_0xff;
 
   // We must be able to access 3 extra bytes after the last written byte
diff --git a/thirdparty/libwebp/src/dsp/cpu.c b/thirdparty/libwebp/src/dsp/cpu.c
index a4ba7f2cb7..62de73f750 100644
--- a/thirdparty/libwebp/src/dsp/cpu.c
+++ b/thirdparty/libwebp/src/dsp/cpu.c
@@ -212,7 +212,7 @@ VP8CPUInfo VP8GetCPUInfo = wasmCPUInfo;
 #elif defined(WEBP_HAVE_NEON)
 // In most cases this function doesn't check for NEON support (it's assumed by
 // the configuration), but enables turning off NEON at runtime, for testing
-// purposes, by setting VP8DecGetCPUInfo = NULL.
+// purposes, by setting VP8GetCPUInfo = NULL.
 static int armCPUInfo(CPUFeature feature) {
   if (feature != kNEON) return 0;
 #if defined(__linux__) && defined(WEBP_HAVE_NEON_RTCD)
diff --git a/thirdparty/libwebp/src/dsp/cpu.h b/thirdparty/libwebp/src/dsp/cpu.h
index 57a40d87d4..be80727c0d 100644
--- a/thirdparty/libwebp/src/dsp/cpu.h
+++ b/thirdparty/libwebp/src/dsp/cpu.h
@@ -14,6 +14,8 @@
 #ifndef WEBP_DSP_CPU_H_
 #define WEBP_DSP_CPU_H_
 
+#include <stddef.h>
+
 #ifdef HAVE_CONFIG_H
 #include "src/webp/config.h"
 #endif
diff --git a/thirdparty/libwebp/src/dsp/dec_sse2.c b/thirdparty/libwebp/src/dsp/dec_sse2.c
index 873aa59e8a..01e6bcb636 100644
--- a/thirdparty/libwebp/src/dsp/dec_sse2.c
+++ b/thirdparty/libwebp/src/dsp/dec_sse2.c
@@ -158,10 +158,10 @@ static void Transform_SSE2(const int16_t* in, uint8_t* dst, int do_two) {
       dst3 = _mm_loadl_epi64((__m128i*)(dst + 3 * BPS));
     } else {
       // Load four bytes/pixels per line.
-      dst0 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 0 * BPS));
-      dst1 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 1 * BPS));
-      dst2 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 2 * BPS));
-      dst3 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 3 * BPS));
+      dst0 = _mm_cvtsi32_si128(WebPMemToInt32(dst + 0 * BPS));
+      dst1 = _mm_cvtsi32_si128(WebPMemToInt32(dst + 1 * BPS));
+      dst2 = _mm_cvtsi32_si128(WebPMemToInt32(dst + 2 * BPS));
+      dst3 = _mm_cvtsi32_si128(WebPMemToInt32(dst + 3 * BPS));
     }
     // Convert to 16b.
     dst0 = _mm_unpacklo_epi8(dst0, zero);
@@ -187,10 +187,10 @@ static void Transform_SSE2(const int16_t* in, uint8_t* dst, int do_two) {
       _mm_storel_epi64((__m128i*)(dst + 3 * BPS), dst3);
     } else {
       // Store four bytes/pixels per line.
-      WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(dst0));
-      WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(dst1));
-      WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(dst2));
-      WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(dst3));
+      WebPInt32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(dst0));
+      WebPInt32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(dst1));
+      WebPInt32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(dst2));
+      WebPInt32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(dst3));
     }
   }
 }
@@ -213,10 +213,10 @@ static void TransformAC3(const int16_t* in, uint8_t* dst) {
   const __m128i m3 = _mm_subs_epi16(B, d4);
   const __m128i zero = _mm_setzero_si128();
   // Load the source pixels.
-  __m128i dst0 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 0 * BPS));
-  __m128i dst1 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 1 * BPS));
-  __m128i dst2 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 2 * BPS));
-  __m128i dst3 = _mm_cvtsi32_si128(WebPMemToUint32(dst + 3 * BPS));
+  __m128i dst0 = _mm_cvtsi32_si128(WebPMemToInt32(dst + 0 * BPS));
+  __m128i dst1 = _mm_cvtsi32_si128(WebPMemToInt32(dst + 1 * BPS));
+  __m128i dst2 = _mm_cvtsi32_si128(WebPMemToInt32(dst + 2 * BPS));
+  __m128i dst3 = _mm_cvtsi32_si128(WebPMemToInt32(dst + 3 * BPS));
   // Convert to 16b.
   dst0 = _mm_unpacklo_epi8(dst0, zero);
   dst1 = _mm_unpacklo_epi8(dst1, zero);
@@ -233,10 +233,10 @@ static void TransformAC3(const int16_t* in, uint8_t* dst) {
   dst2 = _mm_packus_epi16(dst2, dst2);
   dst3 = _mm_packus_epi16(dst3, dst3);
   // Store the results.
-  WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(dst0));
-  WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(dst1));
-  WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(dst2));
-  WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(dst3));
+  WebPInt32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(dst0));
+  WebPInt32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(dst1));
+  WebPInt32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(dst2));
+  WebPInt32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(dst3));
 }
 #undef MUL
 #endif   // USE_TRANSFORM_AC3
@@ -477,11 +477,11 @@ static WEBP_INLINE void Load8x4_SSE2(const uint8_t* const b, int stride,
   // A0 = 63 62 61 60 23 22 21 20 43 42 41 40 03 02 01 00
   // A1 = 73 72 71 70 33 32 31 30 53 52 51 50 13 12 11 10
   const __m128i A0 = _mm_set_epi32(
-      WebPMemToUint32(&b[6 * stride]), WebPMemToUint32(&b[2 * stride]),
-      WebPMemToUint32(&b[4 * stride]), WebPMemToUint32(&b[0 * stride]));
+      WebPMemToInt32(&b[6 * stride]), WebPMemToInt32(&b[2 * stride]),
+      WebPMemToInt32(&b[4 * stride]), WebPMemToInt32(&b[0 * stride]));
   const __m128i A1 = _mm_set_epi32(
-      WebPMemToUint32(&b[7 * stride]), WebPMemToUint32(&b[3 * stride]),
-      WebPMemToUint32(&b[5 * stride]), WebPMemToUint32(&b[1 * stride]));
+      WebPMemToInt32(&b[7 * stride]), WebPMemToInt32(&b[3 * stride]),
+      WebPMemToInt32(&b[5 * stride]), WebPMemToInt32(&b[1 * stride]));
 
   // B0 = 53 43 52 42 51 41 50 40 13 03 12 02 11 01 10 00
   // B1 = 73 63 72 62 71 61 70 60 33 23 32 22 31 21 30 20
@@ -540,7 +540,7 @@ static WEBP_INLINE void Store4x4_SSE2(__m128i* const x,
                                       uint8_t* dst, int stride) {
   int i;
   for (i = 0; i < 4; ++i, dst += stride) {
-    WebPUint32ToMem(dst, _mm_cvtsi128_si32(*x));
+    WebPInt32ToMem(dst, _mm_cvtsi128_si32(*x));
     *x = _mm_srli_si128(*x, 4);
   }
 }
@@ -908,10 +908,10 @@ static void VE4_SSE2(uint8_t* dst) {    // vertical
   const __m128i lsb = _mm_and_si128(_mm_xor_si128(ABCDEFGH, CDEFGH00), one);
   const __m128i b = _mm_subs_epu8(a, lsb);
   const __m128i avg = _mm_avg_epu8(b, BCDEFGH0);
-  const uint32_t vals = _mm_cvtsi128_si32(avg);
+  const int vals = _mm_cvtsi128_si32(avg);
   int i;
   for (i = 0; i < 4; ++i) {
-    WebPUint32ToMem(dst + i * BPS, vals);
+    WebPInt32ToMem(dst + i * BPS, vals);
   }
 }
 
@@ -925,10 +925,10 @@ static void LD4_SSE2(uint8_t* dst) {   // Down-Left
   const __m128i lsb = _mm_and_si128(_mm_xor_si128(ABCDEFGH, CDEFGHH0), one);
   const __m128i avg2 = _mm_subs_epu8(avg1, lsb);
   const __m128i abcdefg = _mm_avg_epu8(avg2, BCDEFGH0);
-  WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(               abcdefg    ));
-  WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 1)));
-  WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 2)));
-  WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 3)));
+  WebPInt32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(               abcdefg    ));
+  WebPInt32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 1)));
+  WebPInt32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 2)));
+  WebPInt32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 3)));
 }
 
 static void VR4_SSE2(uint8_t* dst) {   // Vertical-Right
@@ -946,10 +946,10 @@ static void VR4_SSE2(uint8_t* dst) {   // Vertical-Right
   const __m128i lsb = _mm_and_si128(_mm_xor_si128(IXABCD, ABCD0), one);
   const __m128i avg2 = _mm_subs_epu8(avg1, lsb);
   const __m128i efgh = _mm_avg_epu8(avg2, XABCD);
-  WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(               abcd    ));
-  WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(               efgh    ));
-  WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_slli_si128(abcd, 1)));
-  WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_slli_si128(efgh, 1)));
+  WebPInt32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(               abcd    ));
+  WebPInt32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(               efgh    ));
+  WebPInt32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_slli_si128(abcd, 1)));
+  WebPInt32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_slli_si128(efgh, 1)));
 
   // these two are hard to implement in SSE2, so we keep the C-version:
   DST(0, 2) = AVG3(J, I, X);
@@ -970,11 +970,12 @@ static void VL4_SSE2(uint8_t* dst) {   // Vertical-Left
   const __m128i abbc = _mm_or_si128(ab, bc);
   const __m128i lsb2 = _mm_and_si128(abbc, lsb1);
   const __m128i avg4 = _mm_subs_epu8(avg3, lsb2);
-  const uint32_t extra_out = _mm_cvtsi128_si32(_mm_srli_si128(avg4, 4));
-  WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(               avg1    ));
-  WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(               avg4    ));
-  WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(avg1, 1)));
-  WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(avg4, 1)));
+  const uint32_t extra_out =
+      (uint32_t)_mm_cvtsi128_si32(_mm_srli_si128(avg4, 4));
+  WebPInt32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(               avg1    ));
+  WebPInt32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(               avg4    ));
+  WebPInt32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(avg1, 1)));
+  WebPInt32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(avg4, 1)));
 
   // these two are hard to get and irregular
   DST(3, 2) = (extra_out >> 0) & 0xff;
@@ -990,7 +991,7 @@ static void RD4_SSE2(uint8_t* dst) {   // Down-right
   const uint32_t K = dst[-1 + 2 * BPS];
   const uint32_t L = dst[-1 + 3 * BPS];
   const __m128i LKJI_____ =
-      _mm_cvtsi32_si128(L | (K << 8) | (J << 16) | (I << 24));
+      _mm_cvtsi32_si128((int)(L | (K << 8) | (J << 16) | (I << 24)));
   const __m128i LKJIXABCD = _mm_or_si128(LKJI_____, ____XABCD);
   const __m128i KJIXABCD_ = _mm_srli_si128(LKJIXABCD, 1);
   const __m128i JIXABCD__ = _mm_srli_si128(LKJIXABCD, 2);
@@ -998,10 +999,10 @@ static void RD4_SSE2(uint8_t* dst) {   // Down-right
   const __m128i lsb = _mm_and_si128(_mm_xor_si128(JIXABCD__, LKJIXABCD), one);
   const __m128i avg2 = _mm_subs_epu8(avg1, lsb);
   const __m128i abcdefg = _mm_avg_epu8(avg2, KJIXABCD_);
-  WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(               abcdefg    ));
-  WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 1)));
-  WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 2)));
-  WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 3)));
+  WebPInt32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(               abcdefg    ));
+  WebPInt32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 1)));
+  WebPInt32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 2)));
+  WebPInt32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 3)));
 }
 
 #undef DST
@@ -1015,13 +1016,13 @@ static WEBP_INLINE void TrueMotion_SSE2(uint8_t* dst, int size) {
   const __m128i zero = _mm_setzero_si128();
   int y;
   if (size == 4) {
-    const __m128i top_values = _mm_cvtsi32_si128(WebPMemToUint32(top));
+    const __m128i top_values = _mm_cvtsi32_si128(WebPMemToInt32(top));
     const __m128i top_base = _mm_unpacklo_epi8(top_values, zero);
     for (y = 0; y < 4; ++y, dst += BPS) {
       const int val = dst[-1] - top[-1];
       const __m128i base = _mm_set1_epi16(val);
       const __m128i out = _mm_packus_epi16(_mm_add_epi16(base, top_base), zero);
-      WebPUint32ToMem(dst, _mm_cvtsi128_si32(out));
+      WebPInt32ToMem(dst, _mm_cvtsi128_si32(out));
     }
   } else if (size == 8) {
     const __m128i top_values = _mm_loadl_epi64((const __m128i*)top);
@@ -1062,7 +1063,7 @@ static void VE16_SSE2(uint8_t* dst) {
 static void HE16_SSE2(uint8_t* dst) {     // horizontal
   int j;
   for (j = 16; j > 0; --j) {
-    const __m128i values = _mm_set1_epi8(dst[-1]);
+    const __m128i values = _mm_set1_epi8((char)dst[-1]);
     _mm_storeu_si128((__m128i*)dst, values);
     dst += BPS;
   }
@@ -1070,7 +1071,7 @@ static void HE16_SSE2(uint8_t* dst) {     // horizontal
 
 static WEBP_INLINE void Put16_SSE2(uint8_t v, uint8_t* dst) {
   int j;
-  const __m128i values = _mm_set1_epi8(v);
+  const __m128i values = _mm_set1_epi8((char)v);
   for (j = 0; j < 16; ++j) {
     _mm_storeu_si128((__m128i*)(dst + j * BPS), values);
   }
@@ -1130,7 +1131,7 @@ static void VE8uv_SSE2(uint8_t* dst) {    // vertical
 // helper for chroma-DC predictions
 static WEBP_INLINE void Put8x8uv_SSE2(uint8_t v, uint8_t* dst) {
   int j;
-  const __m128i values = _mm_set1_epi8(v);
+  const __m128i values = _mm_set1_epi8((char)v);
   for (j = 0; j < 8; ++j) {
     _mm_storel_epi64((__m128i*)(dst + j * BPS), values);
   }
diff --git a/thirdparty/libwebp/src/dsp/dec_sse41.c b/thirdparty/libwebp/src/dsp/dec_sse41.c
index 8f18506d54..08a3630272 100644
--- a/thirdparty/libwebp/src/dsp/dec_sse41.c
+++ b/thirdparty/libwebp/src/dsp/dec_sse41.c
@@ -23,7 +23,7 @@ static void HE16_SSE41(uint8_t* dst) {     // horizontal
   int j;
   const __m128i kShuffle3 = _mm_set1_epi8(3);
   for (j = 16; j > 0; --j) {
-    const __m128i in = _mm_cvtsi32_si128(WebPMemToUint32(dst - 4));
+    const __m128i in = _mm_cvtsi32_si128(WebPMemToInt32(dst - 4));
     const __m128i values = _mm_shuffle_epi8(in, kShuffle3);
     _mm_storeu_si128((__m128i*)dst, values);
     dst += BPS;
diff --git a/thirdparty/libwebp/src/dsp/enc_neon.c b/thirdparty/libwebp/src/dsp/enc_neon.c
index 601962ba76..3a04111c55 100644
--- a/thirdparty/libwebp/src/dsp/enc_neon.c
+++ b/thirdparty/libwebp/src/dsp/enc_neon.c
@@ -764,9 +764,14 @@ static WEBP_INLINE void AccumulateSSE16_NEON(const uint8_t* const a,
 
 // Horizontal sum of all four uint32_t values in 'sum'.
 static int SumToInt_NEON(uint32x4_t sum) {
+#if defined(__aarch64__)
+  return (int)vaddvq_u32(sum);
+#else
   const uint64x2_t sum2 = vpaddlq_u32(sum);
-  const uint64_t sum3 = vgetq_lane_u64(sum2, 0) + vgetq_lane_u64(sum2, 1);
-  return (int)sum3;
+  const uint32x2_t sum3 = vadd_u32(vreinterpret_u32_u64(vget_low_u64(sum2)),
+                                   vreinterpret_u32_u64(vget_high_u64(sum2)));
+  return (int)vget_lane_u32(sum3, 0);
+#endif
 }
 
 static int SSE16x16_NEON(const uint8_t* a, const uint8_t* b) {
diff --git a/thirdparty/libwebp/src/dsp/enc_sse2.c b/thirdparty/libwebp/src/dsp/enc_sse2.c
index b2e78ed941..1d1055668f 100644
--- a/thirdparty/libwebp/src/dsp/enc_sse2.c
+++ b/thirdparty/libwebp/src/dsp/enc_sse2.c
@@ -156,10 +156,10 @@ static void ITransform_SSE2(const uint8_t* ref, const int16_t* in, uint8_t* dst,
       ref3 = _mm_loadl_epi64((const __m128i*)&ref[3 * BPS]);
     } else {
       // Load four bytes/pixels per line.
-      ref0 = _mm_cvtsi32_si128(WebPMemToUint32(&ref[0 * BPS]));
-      ref1 = _mm_cvtsi32_si128(WebPMemToUint32(&ref[1 * BPS]));
-      ref2 = _mm_cvtsi32_si128(WebPMemToUint32(&ref[2 * BPS]));
-      ref3 = _mm_cvtsi32_si128(WebPMemToUint32(&ref[3 * BPS]));
+      ref0 = _mm_cvtsi32_si128(WebPMemToInt32(&ref[0 * BPS]));
+      ref1 = _mm_cvtsi32_si128(WebPMemToInt32(&ref[1 * BPS]));
+      ref2 = _mm_cvtsi32_si128(WebPMemToInt32(&ref[2 * BPS]));
+      ref3 = _mm_cvtsi32_si128(WebPMemToInt32(&ref[3 * BPS]));
     }
     // Convert to 16b.
     ref0 = _mm_unpacklo_epi8(ref0, zero);
@@ -185,10 +185,10 @@ static void ITransform_SSE2(const uint8_t* ref, const int16_t* in, uint8_t* dst,
       _mm_storel_epi64((__m128i*)&dst[3 * BPS], ref3);
     } else {
       // Store four bytes/pixels per line.
-      WebPUint32ToMem(&dst[0 * BPS], _mm_cvtsi128_si32(ref0));
-      WebPUint32ToMem(&dst[1 * BPS], _mm_cvtsi128_si32(ref1));
-      WebPUint32ToMem(&dst[2 * BPS], _mm_cvtsi128_si32(ref2));
-      WebPUint32ToMem(&dst[3 * BPS], _mm_cvtsi128_si32(ref3));
+      WebPInt32ToMem(&dst[0 * BPS], _mm_cvtsi128_si32(ref0));
+      WebPInt32ToMem(&dst[1 * BPS], _mm_cvtsi128_si32(ref1));
+      WebPInt32ToMem(&dst[2 * BPS], _mm_cvtsi128_si32(ref2));
+      WebPInt32ToMem(&dst[3 * BPS], _mm_cvtsi128_si32(ref3));
     }
   }
 }
@@ -481,7 +481,7 @@ static void CollectHistogram_SSE2(const uint8_t* ref, const uint8_t* pred,
 // helper for chroma-DC predictions
 static WEBP_INLINE void Put8x8uv_SSE2(uint8_t v, uint8_t* dst) {
   int j;
-  const __m128i values = _mm_set1_epi8(v);
+  const __m128i values = _mm_set1_epi8((char)v);
   for (j = 0; j < 8; ++j) {
     _mm_storel_epi64((__m128i*)(dst + j * BPS), values);
   }
@@ -489,7 +489,7 @@ static WEBP_INLINE void Put8x8uv_SSE2(uint8_t v, uint8_t* dst) {
 
 static WEBP_INLINE void Put16_SSE2(uint8_t v, uint8_t* dst) {
   int j;
-  const __m128i values = _mm_set1_epi8(v);
+  const __m128i values = _mm_set1_epi8((char)v);
   for (j = 0; j < 16; ++j) {
     _mm_store_si128((__m128i*)(dst + j * BPS), values);
   }
@@ -540,7 +540,7 @@ static WEBP_INLINE void VerticalPred_SSE2(uint8_t* dst,
 static WEBP_INLINE void HE8uv_SSE2(uint8_t* dst, const uint8_t* left) {
   int j;
   for (j = 0; j < 8; ++j) {
-    const __m128i values = _mm_set1_epi8(left[j]);
+    const __m128i values = _mm_set1_epi8((char)left[j]);
     _mm_storel_epi64((__m128i*)dst, values);
     dst += BPS;
   }
@@ -549,7 +549,7 @@ static WEBP_INLINE void HE8uv_SSE2(uint8_t* dst, const uint8_t* left) {
 static WEBP_INLINE void HE16_SSE2(uint8_t* dst, const uint8_t* left) {
   int j;
   for (j = 0; j < 16; ++j) {
-    const __m128i values = _mm_set1_epi8(left[j]);
+    const __m128i values = _mm_set1_epi8((char)left[j]);
     _mm_store_si128((__m128i*)dst, values);
     dst += BPS;
   }
@@ -722,10 +722,10 @@ static WEBP_INLINE void VE4_SSE2(uint8_t* dst,
   const __m128i lsb = _mm_and_si128(_mm_xor_si128(ABCDEFGH, CDEFGH00), one);
   const __m128i b = _mm_subs_epu8(a, lsb);
   const __m128i avg = _mm_avg_epu8(b, BCDEFGH0);
-  const uint32_t vals = _mm_cvtsi128_si32(avg);
+  const int vals = _mm_cvtsi128_si32(avg);
   int i;
   for (i = 0; i < 4; ++i) {
-    WebPUint32ToMem(dst + i * BPS, vals);
+    WebPInt32ToMem(dst + i * BPS, vals);
   }
 }
 
@@ -760,10 +760,10 @@ static WEBP_INLINE void LD4_SSE2(uint8_t* dst,
   const __m128i lsb = _mm_and_si128(_mm_xor_si128(ABCDEFGH, CDEFGHH0), one);
   const __m128i avg2 = _mm_subs_epu8(avg1, lsb);
   const __m128i abcdefg = _mm_avg_epu8(avg2, BCDEFGH0);
-  WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(               abcdefg    ));
-  WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 1)));
-  WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 2)));
-  WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 3)));
+  WebPInt32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(               abcdefg    ));
+  WebPInt32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 1)));
+  WebPInt32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 2)));
+  WebPInt32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 3)));
 }
 
 static WEBP_INLINE void VR4_SSE2(uint8_t* dst,
@@ -782,10 +782,10 @@ static WEBP_INLINE void VR4_SSE2(uint8_t* dst,
   const __m128i lsb = _mm_and_si128(_mm_xor_si128(IXABCD, ABCD0), one);
   const __m128i avg2 = _mm_subs_epu8(avg1, lsb);
   const __m128i efgh = _mm_avg_epu8(avg2, XABCD);
-  WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(               abcd    ));
-  WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(               efgh    ));
-  WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_slli_si128(abcd, 1)));
-  WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_slli_si128(efgh, 1)));
+  WebPInt32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(               abcd    ));
+  WebPInt32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(               efgh    ));
+  WebPInt32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_slli_si128(abcd, 1)));
+  WebPInt32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_slli_si128(efgh, 1)));
 
   // these two are hard to implement in SSE2, so we keep the C-version:
   DST(0, 2) = AVG3(J, I, X);
@@ -807,11 +807,12 @@ static WEBP_INLINE void VL4_SSE2(uint8_t* dst,
   const __m128i abbc = _mm_or_si128(ab, bc);
   const __m128i lsb2 = _mm_and_si128(abbc, lsb1);
   const __m128i avg4 = _mm_subs_epu8(avg3, lsb2);
-  const uint32_t extra_out = _mm_cvtsi128_si32(_mm_srli_si128(avg4, 4));
-  WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(               avg1    ));
-  WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(               avg4    ));
-  WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(avg1, 1)));
-  WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(avg4, 1)));
+  const uint32_t extra_out =
+      (uint32_t)_mm_cvtsi128_si32(_mm_srli_si128(avg4, 4));
+  WebPInt32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(               avg1    ));
+  WebPInt32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(               avg4    ));
+  WebPInt32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(avg1, 1)));
+  WebPInt32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(avg4, 1)));
 
   // these two are hard to get and irregular
   DST(3, 2) = (extra_out >> 0) & 0xff;
@@ -829,10 +830,10 @@ static WEBP_INLINE void RD4_SSE2(uint8_t* dst,
   const __m128i lsb = _mm_and_si128(_mm_xor_si128(JIXABCD__, LKJIXABCD), one);
   const __m128i avg2 = _mm_subs_epu8(avg1, lsb);
   const __m128i abcdefg = _mm_avg_epu8(avg2, KJIXABCD_);
-  WebPUint32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(               abcdefg    ));
-  WebPUint32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 1)));
-  WebPUint32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 2)));
-  WebPUint32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 3)));
+  WebPInt32ToMem(dst + 3 * BPS, _mm_cvtsi128_si32(               abcdefg    ));
+  WebPInt32ToMem(dst + 2 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 1)));
+  WebPInt32ToMem(dst + 1 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 2)));
+  WebPInt32ToMem(dst + 0 * BPS, _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 3)));
 }
 
 static WEBP_INLINE void HU4_SSE2(uint8_t* dst, const uint8_t* top) {
@@ -875,14 +876,14 @@ static WEBP_INLINE void HD4_SSE2(uint8_t* dst, const uint8_t* top) {
 
 static WEBP_INLINE void TM4_SSE2(uint8_t* dst, const uint8_t* top) {
   const __m128i zero = _mm_setzero_si128();
-  const __m128i top_values = _mm_cvtsi32_si128(WebPMemToUint32(top));
+  const __m128i top_values = _mm_cvtsi32_si128(WebPMemToInt32(top));
   const __m128i top_base = _mm_unpacklo_epi8(top_values, zero);
   int y;
   for (y = 0; y < 4; ++y, dst += BPS) {
     const int val = top[-2 - y] - top[-1];
     const __m128i base = _mm_set1_epi16(val);
     const __m128i out = _mm_packus_epi16(_mm_add_epi16(base, top_base), zero);
-    WebPUint32ToMem(dst, _mm_cvtsi128_si32(out));
+    WebPInt32ToMem(dst, _mm_cvtsi128_si32(out));
   }
 }
 
diff --git a/thirdparty/libwebp/src/dsp/lossless.c b/thirdparty/libwebp/src/dsp/lossless.c
index 84a54296fd..fb86e58d4a 100644
--- a/thirdparty/libwebp/src/dsp/lossless.c
+++ b/thirdparty/libwebp/src/dsp/lossless.c
@@ -49,7 +49,7 @@ static WEBP_INLINE uint32_t Clip255(uint32_t a) {
 }
 
 static WEBP_INLINE int AddSubtractComponentFull(int a, int b, int c) {
-  return Clip255(a + b - c);
+  return Clip255((uint32_t)(a + b - c));
 }
 
 static WEBP_INLINE uint32_t ClampedAddSubtractFull(uint32_t c0, uint32_t c1,
@@ -66,7 +66,7 @@ static WEBP_INLINE uint32_t ClampedAddSubtractFull(uint32_t c0, uint32_t c1,
 }
 
 static WEBP_INLINE int AddSubtractComponentHalf(int a, int b) {
-  return Clip255(a + (a - b) / 2);
+  return Clip255((uint32_t)(a + (a - b) / 2));
 }
 
 static WEBP_INLINE uint32_t ClampedAddSubtractHalf(uint32_t c0, uint32_t c1,
@@ -293,10 +293,10 @@ void VP8LTransformColorInverse_C(const VP8LMultipliers* const m,
     const uint32_t red = argb >> 16;
     int new_red = red & 0xff;
     int new_blue = argb & 0xff;
-    new_red += ColorTransformDelta(m->green_to_red_, green);
+    new_red += ColorTransformDelta((int8_t)m->green_to_red_, green);
     new_red &= 0xff;
-    new_blue += ColorTransformDelta(m->green_to_blue_, green);
-    new_blue += ColorTransformDelta(m->red_to_blue_, (int8_t)new_red);
+    new_blue += ColorTransformDelta((int8_t)m->green_to_blue_, green);
+    new_blue += ColorTransformDelta((int8_t)m->red_to_blue_, (int8_t)new_red);
     new_blue &= 0xff;
     dst[i] = (argb & 0xff00ff00u) | (new_red << 16) | (new_blue);
   }
@@ -395,7 +395,7 @@ void VP8LInverseTransform(const VP8LTransform* const transform,
   assert(row_start < row_end);
   assert(row_end <= transform->ysize_);
   switch (transform->type_) {
-    case SUBTRACT_GREEN:
+    case SUBTRACT_GREEN_TRANSFORM:
       VP8LAddGreenToBlueAndRed(in, (row_end - row_start) * width, out);
       break;
     case PREDICTOR_TRANSFORM:
diff --git a/thirdparty/libwebp/src/dsp/lossless_enc.c b/thirdparty/libwebp/src/dsp/lossless_enc.c
index de6c4ace5f..b1f9f26d72 100644
--- a/thirdparty/libwebp/src/dsp/lossless_enc.c
+++ b/thirdparty/libwebp/src/dsp/lossless_enc.c
@@ -522,11 +522,11 @@ static void GetCombinedEntropyUnrefined_C(const uint32_t X[],
 void VP8LSubtractGreenFromBlueAndRed_C(uint32_t* argb_data, int num_pixels) {
   int i;
   for (i = 0; i < num_pixels; ++i) {
-    const int argb = argb_data[i];
+    const int argb = (int)argb_data[i];
     const int green = (argb >> 8) & 0xff;
     const uint32_t new_r = (((argb >> 16) & 0xff) - green) & 0xff;
     const uint32_t new_b = (((argb >>  0) & 0xff) - green) & 0xff;
-    argb_data[i] = (argb & 0xff00ff00u) | (new_r << 16) | new_b;
+    argb_data[i] = ((uint32_t)argb & 0xff00ff00u) | (new_r << 16) | new_b;
   }
 }
 
@@ -547,10 +547,10 @@ void VP8LTransformColor_C(const VP8LMultipliers* const m, uint32_t* data,
     const int8_t red   = U32ToS8(argb >> 16);
     int new_red = red & 0xff;
     int new_blue = argb & 0xff;
-    new_red -= ColorTransformDelta(m->green_to_red_, green);
+    new_red -= ColorTransformDelta((int8_t)m->green_to_red_, green);
     new_red &= 0xff;
-    new_blue -= ColorTransformDelta(m->green_to_blue_, green);
-    new_blue -= ColorTransformDelta(m->red_to_blue_, red);
+    new_blue -= ColorTransformDelta((int8_t)m->green_to_blue_, green);
+    new_blue -= ColorTransformDelta((int8_t)m->red_to_blue_, red);
     new_blue &= 0xff;
     data[i] = (argb & 0xff00ff00u) | (new_red << 16) | (new_blue);
   }
@@ -560,7 +560,7 @@ static WEBP_INLINE uint8_t TransformColorRed(uint8_t green_to_red,
                                              uint32_t argb) {
   const int8_t green = U32ToS8(argb >> 8);
   int new_red = argb >> 16;
-  new_red -= ColorTransformDelta(green_to_red, green);
+  new_red -= ColorTransformDelta((int8_t)green_to_red, green);
   return (new_red & 0xff);
 }
 
@@ -569,9 +569,9 @@ static WEBP_INLINE uint8_t TransformColorBlue(uint8_t green_to_blue,
                                               uint32_t argb) {
   const int8_t green = U32ToS8(argb >>  8);
   const int8_t red   = U32ToS8(argb >> 16);
-  uint8_t new_blue = argb & 0xff;
-  new_blue -= ColorTransformDelta(green_to_blue, green);
-  new_blue -= ColorTransformDelta(red_to_blue, red);
+  int new_blue = argb & 0xff;
+  new_blue -= ColorTransformDelta((int8_t)green_to_blue, green);
+  new_blue -= ColorTransformDelta((int8_t)red_to_blue, red);
   return (new_blue & 0xff);
 }
 
diff --git a/thirdparty/libwebp/src/dsp/lossless_enc_sse2.c b/thirdparty/libwebp/src/dsp/lossless_enc_sse2.c
index 948001a3d5..66cbaab772 100644
--- a/thirdparty/libwebp/src/dsp/lossless_enc_sse2.c
+++ b/thirdparty/libwebp/src/dsp/lossless_enc_sse2.c
@@ -54,8 +54,8 @@ static void TransformColor_SSE2(const VP8LMultipliers* const m,
   const __m128i mults_rb = MK_CST_16(CST_5b(m->green_to_red_),
                                      CST_5b(m->green_to_blue_));
   const __m128i mults_b2 = MK_CST_16(CST_5b(m->red_to_blue_), 0);
-  const __m128i mask_ag = _mm_set1_epi32(0xff00ff00);  // alpha-green masks
-  const __m128i mask_rb = _mm_set1_epi32(0x00ff00ff);  // red-blue masks
+  const __m128i mask_ag = _mm_set1_epi32((int)0xff00ff00);  // alpha-green masks
+  const __m128i mask_rb = _mm_set1_epi32(0x00ff00ff);       // red-blue masks
   int i;
   for (i = 0; i + 4 <= num_pixels; i += 4) {
     const __m128i in = _mm_loadu_si128((__m128i*)&argb_data[i]); // argb
@@ -376,7 +376,7 @@ static void BundleColorMap_SSE2(const uint8_t* const row, int width, int xbits,
       break;
     }
     case 2: {
-      const __m128i mask_or = _mm_set1_epi32(0xff000000);
+      const __m128i mask_or = _mm_set1_epi32((int)0xff000000);
       const __m128i mul_cst = _mm_set1_epi16(0x0104);
       const __m128i mask_mul = _mm_set1_epi16(0x0f00);
       for (x = 0; x + 16 <= width; x += 16, dst += 4) {
@@ -427,7 +427,7 @@ static WEBP_INLINE void Average2_m128i(const __m128i* const a0,
 static void PredictorSub0_SSE2(const uint32_t* in, const uint32_t* upper,
                                int num_pixels, uint32_t* out) {
   int i;
-  const __m128i black = _mm_set1_epi32(ARGB_BLACK);
+  const __m128i black = _mm_set1_epi32((int)ARGB_BLACK);
   for (i = 0; i + 4 <= num_pixels; i += 4) {
     const __m128i src = _mm_loadu_si128((const __m128i*)&in[i]);
     const __m128i res = _mm_sub_epi8(src, black);
diff --git a/thirdparty/libwebp/src/dsp/lossless_sse2.c b/thirdparty/libwebp/src/dsp/lossless_sse2.c
index 396cb0bdfc..4b6a532c23 100644
--- a/thirdparty/libwebp/src/dsp/lossless_sse2.c
+++ b/thirdparty/libwebp/src/dsp/lossless_sse2.c
@@ -27,23 +27,22 @@ static WEBP_INLINE uint32_t ClampedAddSubtractFull_SSE2(uint32_t c0,
                                                         uint32_t c1,
                                                         uint32_t c2) {
   const __m128i zero = _mm_setzero_si128();
-  const __m128i C0 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(c0), zero);
-  const __m128i C1 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(c1), zero);
-  const __m128i C2 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(c2), zero);
+  const __m128i C0 = _mm_unpacklo_epi8(_mm_cvtsi32_si128((int)c0), zero);
+  const __m128i C1 = _mm_unpacklo_epi8(_mm_cvtsi32_si128((int)c1), zero);
+  const __m128i C2 = _mm_unpacklo_epi8(_mm_cvtsi32_si128((int)c2), zero);
   const __m128i V1 = _mm_add_epi16(C0, C1);
   const __m128i V2 = _mm_sub_epi16(V1, C2);
   const __m128i b = _mm_packus_epi16(V2, V2);
-  const uint32_t output = _mm_cvtsi128_si32(b);
-  return output;
+  return (uint32_t)_mm_cvtsi128_si32(b);
 }
 
 static WEBP_INLINE uint32_t ClampedAddSubtractHalf_SSE2(uint32_t c0,
                                                         uint32_t c1,
                                                         uint32_t c2) {
   const __m128i zero = _mm_setzero_si128();
-  const __m128i C0 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(c0), zero);
-  const __m128i C1 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(c1), zero);
-  const __m128i B0 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(c2), zero);
+  const __m128i C0 = _mm_unpacklo_epi8(_mm_cvtsi32_si128((int)c0), zero);
+  const __m128i C1 = _mm_unpacklo_epi8(_mm_cvtsi32_si128((int)c1), zero);
+  const __m128i B0 = _mm_unpacklo_epi8(_mm_cvtsi32_si128((int)c2), zero);
   const __m128i avg = _mm_add_epi16(C1, C0);
   const __m128i A0 = _mm_srli_epi16(avg, 1);
   const __m128i A1 = _mm_sub_epi16(A0, B0);
@@ -52,16 +51,15 @@ static WEBP_INLINE uint32_t ClampedAddSubtractHalf_SSE2(uint32_t c0,
   const __m128i A3 = _mm_srai_epi16(A2, 1);
   const __m128i A4 = _mm_add_epi16(A0, A3);
   const __m128i A5 = _mm_packus_epi16(A4, A4);
-  const uint32_t output = _mm_cvtsi128_si32(A5);
-  return output;
+  return (uint32_t)_mm_cvtsi128_si32(A5);
 }
 
 static WEBP_INLINE uint32_t Select_SSE2(uint32_t a, uint32_t b, uint32_t c) {
   int pa_minus_pb;
   const __m128i zero = _mm_setzero_si128();
-  const __m128i A0 = _mm_cvtsi32_si128(a);
-  const __m128i B0 = _mm_cvtsi32_si128(b);
-  const __m128i C0 = _mm_cvtsi32_si128(c);
+  const __m128i A0 = _mm_cvtsi32_si128((int)a);
+  const __m128i B0 = _mm_cvtsi32_si128((int)b);
+  const __m128i C0 = _mm_cvtsi32_si128((int)c);
   const __m128i AC0 = _mm_subs_epu8(A0, C0);
   const __m128i CA0 = _mm_subs_epu8(C0, A0);
   const __m128i BC0 = _mm_subs_epu8(B0, C0);
@@ -94,8 +92,8 @@ static WEBP_INLINE void Average2_uint32_SSE2(const uint32_t a0,
                                              __m128i* const avg) {
   // (a + b) >> 1 = ((a + b + 1) >> 1) - ((a ^ b) & 1)
   const __m128i ones = _mm_set1_epi8(1);
-  const __m128i A0 = _mm_cvtsi32_si128(a0);
-  const __m128i A1 = _mm_cvtsi32_si128(a1);
+  const __m128i A0 = _mm_cvtsi32_si128((int)a0);
+  const __m128i A1 = _mm_cvtsi32_si128((int)a1);
   const __m128i avg1 = _mm_avg_epu8(A0, A1);
   const __m128i one = _mm_and_si128(_mm_xor_si128(A0, A1), ones);
   *avg = _mm_sub_epi8(avg1, one);
@@ -103,8 +101,8 @@ static WEBP_INLINE void Average2_uint32_SSE2(const uint32_t a0,
 
 static WEBP_INLINE __m128i Average2_uint32_16_SSE2(uint32_t a0, uint32_t a1) {
   const __m128i zero = _mm_setzero_si128();
-  const __m128i A0 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(a0), zero);
-  const __m128i A1 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(a1), zero);
+  const __m128i A0 = _mm_unpacklo_epi8(_mm_cvtsi32_si128((int)a0), zero);
+  const __m128i A1 = _mm_unpacklo_epi8(_mm_cvtsi32_si128((int)a1), zero);
   const __m128i sum = _mm_add_epi16(A1, A0);
   return _mm_srli_epi16(sum, 1);
 }
@@ -112,19 +110,18 @@ static WEBP_INLINE __m128i Average2_uint32_16_SSE2(uint32_t a0, uint32_t a1) {
 static WEBP_INLINE uint32_t Average2_SSE2(uint32_t a0, uint32_t a1) {
   __m128i output;
   Average2_uint32_SSE2(a0, a1, &output);
-  return _mm_cvtsi128_si32(output);
+  return (uint32_t)_mm_cvtsi128_si32(output);
 }
 
 static WEBP_INLINE uint32_t Average3_SSE2(uint32_t a0, uint32_t a1,
                                           uint32_t a2) {
   const __m128i zero = _mm_setzero_si128();
   const __m128i avg1 = Average2_uint32_16_SSE2(a0, a2);
-  const __m128i A1 = _mm_unpacklo_epi8(_mm_cvtsi32_si128(a1), zero);
+  const __m128i A1 = _mm_unpacklo_epi8(_mm_cvtsi32_si128((int)a1), zero);
   const __m128i sum = _mm_add_epi16(avg1, A1);
   const __m128i avg2 = _mm_srli_epi16(sum, 1);
   const __m128i A2 = _mm_packus_epi16(avg2, avg2);
-  const uint32_t output = _mm_cvtsi128_si32(A2);
-  return output;
+  return (uint32_t)_mm_cvtsi128_si32(A2);
 }
 
 static WEBP_INLINE uint32_t Average4_SSE2(uint32_t a0, uint32_t a1,
@@ -134,8 +131,7 @@ static WEBP_INLINE uint32_t Average4_SSE2(uint32_t a0, uint32_t a1,
   const __m128i sum = _mm_add_epi16(avg2, avg1);
   const __m128i avg3 = _mm_srli_epi16(sum, 1);
   const __m128i A0 = _mm_packus_epi16(avg3, avg3);
-  const uint32_t output = _mm_cvtsi128_si32(A0);
-  return output;
+  return (uint32_t)_mm_cvtsi128_si32(A0);
 }
 
 static uint32_t Predictor5_SSE2(const uint32_t* const left,
@@ -192,7 +188,7 @@ static uint32_t Predictor13_SSE2(const uint32_t* const left,
 static void PredictorAdd0_SSE2(const uint32_t* in, const uint32_t* upper,
                                int num_pixels, uint32_t* out) {
   int i;
-  const __m128i black = _mm_set1_epi32(ARGB_BLACK);
+  const __m128i black = _mm_set1_epi32((int)ARGB_BLACK);
   for (i = 0; i + 4 <= num_pixels; i += 4) {
     const __m128i src = _mm_loadu_si128((const __m128i*)&in[i]);
     const __m128i res = _mm_add_epi8(src, black);
@@ -208,7 +204,7 @@ static void PredictorAdd0_SSE2(const uint32_t* in, const uint32_t* upper,
 static void PredictorAdd1_SSE2(const uint32_t* in, const uint32_t* upper,
                                int num_pixels, uint32_t* out) {
   int i;
-  __m128i prev = _mm_set1_epi32(out[-1]);
+  __m128i prev = _mm_set1_epi32((int)out[-1]);
   for (i = 0; i + 4 <= num_pixels; i += 4) {
     // a | b | c | d
     const __m128i src = _mm_loadu_si128((const __m128i*)&in[i]);
@@ -285,12 +281,12 @@ GENERATE_PREDICTOR_2(9, upper[i + 1])
 #undef GENERATE_PREDICTOR_2
 
 // Predictor10: average of (average of (L,TL), average of (T, TR)).
-#define DO_PRED10(OUT) do {               \
-  __m128i avgLTL, avg;                    \
-  Average2_m128i(&L, &TL, &avgLTL);       \
-  Average2_m128i(&avgTTR, &avgLTL, &avg); \
-  L = _mm_add_epi8(avg, src);             \
-  out[i + (OUT)] = _mm_cvtsi128_si32(L);  \
+#define DO_PRED10(OUT) do {                         \
+  __m128i avgLTL, avg;                              \
+  Average2_m128i(&L, &TL, &avgLTL);                 \
+  Average2_m128i(&avgTTR, &avgLTL, &avg);           \
+  L = _mm_add_epi8(avg, src);                       \
+  out[i + (OUT)] = (uint32_t)_mm_cvtsi128_si32(L);  \
 } while (0)
 
 #define DO_PRED10_SHIFT do {                                  \
@@ -303,7 +299,7 @@ GENERATE_PREDICTOR_2(9, upper[i + 1])
 static void PredictorAdd10_SSE2(const uint32_t* in, const uint32_t* upper,
                                 int num_pixels, uint32_t* out) {
   int i;
-  __m128i L = _mm_cvtsi32_si128(out[-1]);
+  __m128i L = _mm_cvtsi32_si128((int)out[-1]);
   for (i = 0; i + 4 <= num_pixels; i += 4) {
     __m128i src = _mm_loadu_si128((const __m128i*)&in[i]);
     __m128i TL = _mm_loadu_si128((const __m128i*)&upper[i - 1]);
@@ -336,7 +332,7 @@ static void PredictorAdd10_SSE2(const uint32_t* in, const uint32_t* upper,
   const __m128i B = _mm_andnot_si128(mask, T);                         \
   const __m128i pred = _mm_or_si128(A, B); /* pred = (pa > b)? L : T*/ \
   L = _mm_add_epi8(src, pred);                                         \
-  out[i + (OUT)] = _mm_cvtsi128_si32(L);                               \
+  out[i + (OUT)] = (uint32_t)_mm_cvtsi128_si32(L);                     \
 } while (0)
 
 #define DO_PRED11_SHIFT do {                                \
@@ -351,7 +347,7 @@ static void PredictorAdd11_SSE2(const uint32_t* in, const uint32_t* upper,
                                 int num_pixels, uint32_t* out) {
   int i;
   __m128i pa;
-  __m128i L = _mm_cvtsi32_si128(out[-1]);
+  __m128i L = _mm_cvtsi32_si128((int)out[-1]);
   for (i = 0; i + 4 <= num_pixels; i += 4) {
     __m128i T = _mm_loadu_si128((const __m128i*)&upper[i]);
     __m128i TL = _mm_loadu_si128((const __m128i*)&upper[i - 1]);
@@ -384,12 +380,12 @@ static void PredictorAdd11_SSE2(const uint32_t* in, const uint32_t* upper,
 #undef DO_PRED11_SHIFT
 
 // Predictor12: ClampedAddSubtractFull.
-#define DO_PRED12(DIFF, LANE, OUT) do {            \
-  const __m128i all = _mm_add_epi16(L, (DIFF));    \
-  const __m128i alls = _mm_packus_epi16(all, all); \
-  const __m128i res = _mm_add_epi8(src, alls);     \
-  out[i + (OUT)] = _mm_cvtsi128_si32(res);         \
-  L = _mm_unpacklo_epi8(res, zero);                \
+#define DO_PRED12(DIFF, LANE, OUT) do {              \
+  const __m128i all = _mm_add_epi16(L, (DIFF));      \
+  const __m128i alls = _mm_packus_epi16(all, all);   \
+  const __m128i res = _mm_add_epi8(src, alls);       \
+  out[i + (OUT)] = (uint32_t)_mm_cvtsi128_si32(res); \
+  L = _mm_unpacklo_epi8(res, zero);                  \
 } while (0)
 
 #define DO_PRED12_SHIFT(DIFF, LANE) do {                    \
@@ -402,7 +398,7 @@ static void PredictorAdd12_SSE2(const uint32_t* in, const uint32_t* upper,
                                 int num_pixels, uint32_t* out) {
   int i;
   const __m128i zero = _mm_setzero_si128();
-  const __m128i L8 = _mm_cvtsi32_si128(out[-1]);
+  const __m128i L8 = _mm_cvtsi32_si128((int)out[-1]);
   __m128i L = _mm_unpacklo_epi8(L8, zero);
   for (i = 0; i + 4 <= num_pixels; i += 4) {
     // Load 4 pixels at a time.
@@ -468,7 +464,7 @@ static void TransformColorInverse_SSE2(const VP8LMultipliers* const m,
   const __m128i mults_b2 = MK_CST_16(CST(red_to_blue_), 0);
 #undef MK_CST_16
 #undef CST
-  const __m128i mask_ag = _mm_set1_epi32(0xff00ff00);  // alpha-green masks
+  const __m128i mask_ag = _mm_set1_epi32((int)0xff00ff00);  // alpha-green masks
   int i;
   for (i = 0; i + 4 <= num_pixels; i += 4) {
     const __m128i in = _mm_loadu_si128((const __m128i*)&src[i]); // argb
@@ -532,7 +528,7 @@ static void ConvertBGRAToRGB_SSE2(const uint32_t* src, int num_pixels,
 
 static void ConvertBGRAToRGBA_SSE2(const uint32_t* src,
                                    int num_pixels, uint8_t* dst) {
-  const __m128i red_blue_mask = _mm_set1_epi32(0x00ff00ffu);
+  const __m128i red_blue_mask = _mm_set1_epi32(0x00ff00ff);
   const __m128i* in = (const __m128i*)src;
   __m128i* out = (__m128i*)dst;
   while (num_pixels >= 8) {
@@ -561,7 +557,7 @@ static void ConvertBGRAToRGBA_SSE2(const uint32_t* src,
 static void ConvertBGRAToRGBA4444_SSE2(const uint32_t* src,
                                        int num_pixels, uint8_t* dst) {
   const __m128i mask_0x0f = _mm_set1_epi8(0x0f);
-  const __m128i mask_0xf0 = _mm_set1_epi8(0xf0);
+  const __m128i mask_0xf0 = _mm_set1_epi8((char)0xf0);
   const __m128i* in = (const __m128i*)src;
   __m128i* out = (__m128i*)dst;
   while (num_pixels >= 8) {
@@ -596,8 +592,8 @@ static void ConvertBGRAToRGBA4444_SSE2(const uint32_t* src,
 
 static void ConvertBGRAToRGB565_SSE2(const uint32_t* src,
                                      int num_pixels, uint8_t* dst) {
-  const __m128i mask_0xe0 = _mm_set1_epi8(0xe0);
-  const __m128i mask_0xf8 = _mm_set1_epi8(0xf8);
+  const __m128i mask_0xe0 = _mm_set1_epi8((char)0xe0);
+  const __m128i mask_0xf8 = _mm_set1_epi8((char)0xf8);
   const __m128i mask_0x07 = _mm_set1_epi8(0x07);
   const __m128i* in = (const __m128i*)src;
   __m128i* out = (__m128i*)dst;
diff --git a/thirdparty/libwebp/src/dsp/lossless_sse41.c b/thirdparty/libwebp/src/dsp/lossless_sse41.c
index b0d6daa7fe..bb7ce7611f 100644
--- a/thirdparty/libwebp/src/dsp/lossless_sse41.c
+++ b/thirdparty/libwebp/src/dsp/lossless_sse41.c
@@ -25,11 +25,12 @@ static void TransformColorInverse_SSE41(const VP8LMultipliers* const m,
                                         int num_pixels, uint32_t* dst) {
 // sign-extended multiplying constants, pre-shifted by 5.
 #define CST(X)  (((int16_t)(m->X << 8)) >> 5)   // sign-extend
-  const __m128i mults_rb = _mm_set1_epi32((uint32_t)CST(green_to_red_) << 16 |
-                                          (CST(green_to_blue_) & 0xffff));
+  const __m128i mults_rb =
+      _mm_set1_epi32((int)((uint32_t)CST(green_to_red_) << 16 |
+                           (CST(green_to_blue_) & 0xffff)));
   const __m128i mults_b2 = _mm_set1_epi32(CST(red_to_blue_));
 #undef CST
-  const __m128i mask_ag = _mm_set1_epi32(0xff00ff00);
+  const __m128i mask_ag = _mm_set1_epi32((int)0xff00ff00);
   const __m128i perm1 = _mm_setr_epi8(-1, 1, -1, 1, -1, 5, -1, 5,
                                       -1, 9, -1, 9, -1, 13, -1, 13);
   const __m128i perm2 = _mm_setr_epi8(-1, 2, -1, -1, -1, 6, -1, -1,
diff --git a/thirdparty/libwebp/src/dsp/quant.h b/thirdparty/libwebp/src/dsp/quant.h
index 5e8dba8d19..fc099bf9d6 100644
--- a/thirdparty/libwebp/src/dsp/quant.h
+++ b/thirdparty/libwebp/src/dsp/quant.h
@@ -21,10 +21,15 @@
 
 #define IsFlat IsFlat_NEON
 
-static uint32x2_t horizontal_add_uint32x4(const uint32x4_t a) {
+static uint32_t horizontal_add_uint32x4(const uint32x4_t a) {
+#if defined(__aarch64__)
+  return vaddvq_u32(a);
+#else
   const uint64x2_t b = vpaddlq_u32(a);
-  return vadd_u32(vreinterpret_u32_u64(vget_low_u64(b)),
-                  vreinterpret_u32_u64(vget_high_u64(b)));
+  const uint32x2_t c = vadd_u32(vreinterpret_u32_u64(vget_low_u64(b)),
+                                vreinterpret_u32_u64(vget_high_u64(b)));
+  return vget_lane_u32(c, 0);
+#endif
 }
 
 static WEBP_INLINE int IsFlat(const int16_t* levels, int num_blocks,
@@ -45,7 +50,7 @@ static WEBP_INLINE int IsFlat(const int16_t* levels, int num_blocks,
 
     levels += 16;
   }
-  return thresh >= (int32_t)vget_lane_u32(horizontal_add_uint32x4(sum), 0);
+  return thresh >= (int)horizontal_add_uint32x4(sum);
 }
 
 #else
diff --git a/thirdparty/libwebp/src/dsp/rescaler_sse2.c b/thirdparty/libwebp/src/dsp/rescaler_sse2.c
index d7effea16e..3f18e94e93 100644
--- a/thirdparty/libwebp/src/dsp/rescaler_sse2.c
+++ b/thirdparty/libwebp/src/dsp/rescaler_sse2.c
@@ -85,7 +85,7 @@ static void RescalerImportRowExpand_SSE2(WebPRescaler* const wrk,
       const __m128i mult = _mm_cvtsi32_si128(((x_add - accum) << 16) | accum);
       const __m128i out = _mm_madd_epi16(cur_pixels, mult);
       assert(sizeof(*frow) == sizeof(uint32_t));
-      WebPUint32ToMem((uint8_t*)frow, _mm_cvtsi128_si32(out));
+      WebPInt32ToMem((uint8_t*)frow, _mm_cvtsi128_si32(out));
       frow += 1;
       if (frow >= frow_end) break;
       accum -= wrk->x_sub;
@@ -132,7 +132,7 @@ static void RescalerImportRowShrink_SSE2(WebPRescaler* const wrk,
     __m128i base = zero;
     accum += wrk->x_add;
     while (accum > 0) {
-      const __m128i A = _mm_cvtsi32_si128(WebPMemToUint32(src));
+      const __m128i A = _mm_cvtsi32_si128(WebPMemToInt32(src));
       src += 4;
       base = _mm_unpacklo_epi8(A, zero);
       // To avoid overflow, we need: base * x_add / x_sub < 32768
@@ -198,7 +198,7 @@ static WEBP_INLINE void ProcessRow_SSE2(const __m128i* const A0,
                                         const __m128i* const mult,
                                         uint8_t* const dst) {
   const __m128i rounder = _mm_set_epi32(0, ROUNDER, 0, ROUNDER);
-  const __m128i mask = _mm_set_epi32(0xffffffffu, 0, 0xffffffffu, 0);
+  const __m128i mask = _mm_set_epi32(~0, 0, ~0, 0);
   const __m128i B0 = _mm_mul_epu32(*A0, *mult);
   const __m128i B1 = _mm_mul_epu32(*A1, *mult);
   const __m128i B2 = _mm_mul_epu32(*A2, *mult);
diff --git a/thirdparty/libwebp/src/dsp/upsampling_sse2.c b/thirdparty/libwebp/src/dsp/upsampling_sse2.c
index 340f1e2ac2..08b6d0b1cf 100644
--- a/thirdparty/libwebp/src/dsp/upsampling_sse2.c
+++ b/thirdparty/libwebp/src/dsp/upsampling_sse2.c
@@ -121,7 +121,7 @@ static void FUNC_NAME(const uint8_t* top_y, const uint8_t* bottom_y,           \
   int uv_pos, pos;                                                             \
   /* 16byte-aligned array to cache reconstructed u and v */                    \
   uint8_t uv_buf[14 * 32 + 15] = { 0 };                                        \
-  uint8_t* const r_u = (uint8_t*)((uintptr_t)(uv_buf + 15) & ~15);             \
+  uint8_t* const r_u = (uint8_t*)((uintptr_t)(uv_buf + 15) & ~(uintptr_t)15);  \
   uint8_t* const r_v = r_u + 32;                                               \
                                                                                \
   assert(top_y != NULL);                                                       \
diff --git a/thirdparty/libwebp/src/dsp/yuv_sse2.c b/thirdparty/libwebp/src/dsp/yuv_sse2.c
index 970bbb7884..01a48f9af2 100644
--- a/thirdparty/libwebp/src/dsp/yuv_sse2.c
+++ b/thirdparty/libwebp/src/dsp/yuv_sse2.c
@@ -15,10 +15,12 @@
 
 #if defined(WEBP_USE_SSE2)
 
-#include "src/dsp/common_sse2.h"
 #include <stdlib.h>
 #include <emmintrin.h>
 
+#include "src/dsp/common_sse2.h"
+#include "src/utils/utils.h"
+
 //-----------------------------------------------------------------------------
 // Convert spans of 32 pixels to various RGB formats for the fancy upsampler.
 
@@ -74,7 +76,7 @@ static WEBP_INLINE __m128i Load_HI_16_SSE2(const uint8_t* src) {
 // Load and replicate the U/V samples
 static WEBP_INLINE __m128i Load_UV_HI_8_SSE2(const uint8_t* src) {
   const __m128i zero = _mm_setzero_si128();
-  const __m128i tmp0 = _mm_cvtsi32_si128(*(const uint32_t*)src);
+  const __m128i tmp0 = _mm_cvtsi32_si128(WebPMemToInt32(src));
   const __m128i tmp1 = _mm_unpacklo_epi8(zero, tmp0);
   return _mm_unpacklo_epi16(tmp1, tmp1);   // replicate samples
 }
@@ -130,7 +132,7 @@ static WEBP_INLINE void PackAndStore4444_SSE2(const __m128i* const R,
   const __m128i rg0 = _mm_packus_epi16(*B, *A);
   const __m128i ba0 = _mm_packus_epi16(*R, *G);
 #endif
-  const __m128i mask_0xf0 = _mm_set1_epi8(0xf0);
+  const __m128i mask_0xf0 = _mm_set1_epi8((char)0xf0);
   const __m128i rb1 = _mm_unpacklo_epi8(rg0, ba0);  // rbrbrbrbrb...
   const __m128i ga1 = _mm_unpackhi_epi8(rg0, ba0);  // gagagagaga...
   const __m128i rb2 = _mm_and_si128(rb1, mask_0xf0);
@@ -147,9 +149,10 @@ static WEBP_INLINE void PackAndStore565_SSE2(const __m128i* const R,
   const __m128i r0 = _mm_packus_epi16(*R, *R);
   const __m128i g0 = _mm_packus_epi16(*G, *G);
   const __m128i b0 = _mm_packus_epi16(*B, *B);
-  const __m128i r1 = _mm_and_si128(r0, _mm_set1_epi8(0xf8));
+  const __m128i r1 = _mm_and_si128(r0, _mm_set1_epi8((char)0xf8));
   const __m128i b1 = _mm_and_si128(_mm_srli_epi16(b0, 3), _mm_set1_epi8(0x1f));
-  const __m128i g1 = _mm_srli_epi16(_mm_and_si128(g0, _mm_set1_epi8(0xe0)), 5);
+  const __m128i g1 =
+      _mm_srli_epi16(_mm_and_si128(g0, _mm_set1_epi8((char)0xe0)), 5);
   const __m128i g2 = _mm_slli_epi16(_mm_and_si128(g0, _mm_set1_epi8(0x1c)), 3);
   const __m128i rg = _mm_or_si128(r1, g1);
   const __m128i gb = _mm_or_si128(g2, b1);
diff --git a/thirdparty/libwebp/src/dsp/yuv_sse41.c b/thirdparty/libwebp/src/dsp/yuv_sse41.c
index 579d1f7402..f79b802e47 100644
--- a/thirdparty/libwebp/src/dsp/yuv_sse41.c
+++ b/thirdparty/libwebp/src/dsp/yuv_sse41.c
@@ -15,10 +15,12 @@
 
 #if defined(WEBP_USE_SSE41)
 
-#include "src/dsp/common_sse41.h"
 #include <stdlib.h>
 #include <smmintrin.h>
 
+#include "src/dsp/common_sse41.h"
+#include "src/utils/utils.h"
+
 //-----------------------------------------------------------------------------
 // Convert spans of 32 pixels to various RGB formats for the fancy upsampler.
 
@@ -74,7 +76,7 @@ static WEBP_INLINE __m128i Load_HI_16_SSE41(const uint8_t* src) {
 // Load and replicate the U/V samples
 static WEBP_INLINE __m128i Load_UV_HI_8_SSE41(const uint8_t* src) {
   const __m128i zero = _mm_setzero_si128();
-  const __m128i tmp0 = _mm_cvtsi32_si128(*(const uint32_t*)src);
+  const __m128i tmp0 = _mm_cvtsi32_si128(WebPMemToInt32(src));
   const __m128i tmp1 = _mm_unpacklo_epi8(zero, tmp0);
   return _mm_unpacklo_epi16(tmp1, tmp1);   // replicate samples
 }
diff --git a/thirdparty/libwebp/src/enc/analysis_enc.c b/thirdparty/libwebp/src/enc/analysis_enc.c
index ebb784261c..a0001ac034 100644
--- a/thirdparty/libwebp/src/enc/analysis_enc.c
+++ b/thirdparty/libwebp/src/enc/analysis_enc.c
@@ -391,12 +391,14 @@ static int DoSegmentsJob(void* arg1, void* arg2) {
   return ok;
 }
 
+#ifdef WEBP_USE_THREAD
 static void MergeJobs(const SegmentJob* const src, SegmentJob* const dst) {
   int i;
   for (i = 0; i <= MAX_ALPHA; ++i) dst->alphas[i] += src->alphas[i];
   dst->alpha += src->alpha;
   dst->uv_alpha += src->uv_alpha;
 }
+#endif
 
 // initialize the job struct with some tasks to perform
 static void InitSegmentJob(VP8Encoder* const enc, SegmentJob* const job,
@@ -425,10 +427,10 @@ int VP8EncAnalyze(VP8Encoder* const enc) {
       (enc->method_ <= 1);  // for method 0 - 1, we need preds_[] to be filled.
   if (do_segments) {
     const int last_row = enc->mb_h_;
-    // We give a little more than a half work to the main thread.
-    const int split_row = (9 * last_row + 15) >> 4;
     const int total_mb = last_row * enc->mb_w_;
 #ifdef WEBP_USE_THREAD
+    // We give a little more than a half work to the main thread.
+    const int split_row = (9 * last_row + 15) >> 4;
     const int kMinSplitRow = 2;  // minimal rows needed for mt to be worth it
     const int do_mt = (enc->thread_level_ > 0) && (split_row >= kMinSplitRow);
 #else
@@ -438,6 +440,7 @@ int VP8EncAnalyze(VP8Encoder* const enc) {
         WebPGetWorkerInterface();
     SegmentJob main_job;
     if (do_mt) {
+#ifdef WEBP_USE_THREAD
       SegmentJob side_job;
       // Note the use of '&' instead of '&&' because we must call the functions
       // no matter what.
@@ -455,6 +458,7 @@ int VP8EncAnalyze(VP8Encoder* const enc) {
       }
       worker_interface->End(&side_job.worker);
       if (ok) MergeJobs(&side_job, &main_job);  // merge results together
+#endif  // WEBP_USE_THREAD
     } else {
       // Even for single-thread case, we use the generic Worker tools.
       InitSegmentJob(enc, &main_job, 0, last_row);
diff --git a/thirdparty/libwebp/src/enc/picture_csp_enc.c b/thirdparty/libwebp/src/enc/picture_csp_enc.c
index fabebcf202..78c8ca479b 100644
--- a/thirdparty/libwebp/src/enc/picture_csp_enc.c
+++ b/thirdparty/libwebp/src/enc/picture_csp_enc.c
@@ -69,10 +69,12 @@ static int CheckNonOpaque(const uint8_t* alpha, int width, int height,
 int WebPPictureHasTransparency(const WebPPicture* picture) {
   if (picture == NULL) return 0;
   if (picture->use_argb) {
-    const int alpha_offset = ALPHA_OFFSET;
-    return CheckNonOpaque((const uint8_t*)picture->argb + alpha_offset,
-                          picture->width, picture->height,
-                          4, picture->argb_stride * sizeof(*picture->argb));
+    if (picture->argb != NULL) {
+      return CheckNonOpaque((const uint8_t*)picture->argb + ALPHA_OFFSET,
+                            picture->width, picture->height,
+                            4, picture->argb_stride * sizeof(*picture->argb));
+    }
+    return 0;
   }
   return CheckNonOpaque(picture->a, picture->width, picture->height,
                         1, picture->a_stride);
@@ -170,21 +172,6 @@ static const int kMinDimensionIterativeConversion = 4;
 //------------------------------------------------------------------------------
 // Main function
 
-extern void SharpYuvInit(VP8CPUInfo cpu_info_func);
-
-static void SafeInitSharpYuv(void) {
-#if defined(WEBP_USE_THREAD) && !defined(_WIN32)
-  static pthread_mutex_t initsharpyuv_lock = PTHREAD_MUTEX_INITIALIZER;
-  if (pthread_mutex_lock(&initsharpyuv_lock)) return;
-#endif
-
-  SharpYuvInit(VP8GetCPUInfo);
-
-#if defined(WEBP_USE_THREAD) && !defined(_WIN32)
-  (void)pthread_mutex_unlock(&initsharpyuv_lock);
-#endif
-}
-
 static int PreprocessARGB(const uint8_t* r_ptr,
                           const uint8_t* g_ptr,
                           const uint8_t* b_ptr,
@@ -481,6 +468,8 @@ static WEBP_INLINE void ConvertRowsToUV(const uint16_t* rgb,
   }
 }
 
+extern void SharpYuvInit(VP8CPUInfo cpu_info_func);
+
 static int ImportYUVAFromRGBA(const uint8_t* r_ptr,
                               const uint8_t* g_ptr,
                               const uint8_t* b_ptr,
@@ -516,7 +505,7 @@ static int ImportYUVAFromRGBA(const uint8_t* r_ptr,
   }
 
   if (use_iterative_conversion) {
-    SafeInitSharpYuv();
+    SharpYuvInit(VP8GetCPUInfo);
     if (!PreprocessARGB(r_ptr, g_ptr, b_ptr, step, rgb_stride, picture)) {
       return 0;
     }
diff --git a/thirdparty/libwebp/src/enc/vp8i_enc.h b/thirdparty/libwebp/src/enc/vp8i_enc.h
index 71f76702ae..c9927c47d8 100644
--- a/thirdparty/libwebp/src/enc/vp8i_enc.h
+++ b/thirdparty/libwebp/src/enc/vp8i_enc.h
@@ -31,8 +31,8 @@ extern "C" {
 
 // version numbers
 #define ENC_MAJ_VERSION 1
-#define ENC_MIN_VERSION 2
-#define ENC_REV_VERSION 4
+#define ENC_MIN_VERSION 3
+#define ENC_REV_VERSION 0
 
 enum { MAX_LF_LEVELS = 64,       // Maximum loop filter level
        MAX_VARIABLE_LEVEL = 67,  // last (inclusive) level with variable cost
diff --git a/thirdparty/libwebp/src/enc/vp8l_enc.c b/thirdparty/libwebp/src/enc/vp8l_enc.c
index 2b345df610..0b07e529a9 100644
--- a/thirdparty/libwebp/src/enc/vp8l_enc.c
+++ b/thirdparty/libwebp/src/enc/vp8l_enc.c
@@ -361,10 +361,11 @@ typedef enum {
   kHistoTotal  // Must be last.
 } HistoIx;
 
-static void AddSingleSubGreen(int p, uint32_t* const r, uint32_t* const b) {
-  const int green = p >> 8;  // The upper bits are masked away later.
-  ++r[((p >> 16) - green) & 0xff];
-  ++b[((p >>  0) - green) & 0xff];
+static void AddSingleSubGreen(uint32_t p,
+                              uint32_t* const r, uint32_t* const b) {
+  const int green = (int)p >> 8;  // The upper bits are masked away later.
+  ++r[(((int)p >> 16) - green) & 0xff];
+  ++b[(((int)p >>  0) - green) & 0xff];
 }
 
 static void AddSingle(uint32_t p,
@@ -1354,7 +1355,7 @@ static int EncodeImageInternal(
 static void ApplySubtractGreen(VP8LEncoder* const enc, int width, int height,
                                VP8LBitWriter* const bw) {
   VP8LPutBits(bw, TRANSFORM_PRESENT, 1);
-  VP8LPutBits(bw, SUBTRACT_GREEN, 2);
+  VP8LPutBits(bw, SUBTRACT_GREEN_TRANSFORM, 2);
   VP8LSubtractGreenFromBlueAndRed(enc->argb_, width * height);
 }
 
diff --git a/thirdparty/libwebp/src/mux/muxi.h b/thirdparty/libwebp/src/mux/muxi.h
index 0f4af1784d..7929138c44 100644
--- a/thirdparty/libwebp/src/mux/muxi.h
+++ b/thirdparty/libwebp/src/mux/muxi.h
@@ -28,8 +28,8 @@ extern "C" {
 // Defines and constants.
 
 #define MUX_MAJ_VERSION 1
-#define MUX_MIN_VERSION 2
-#define MUX_REV_VERSION 4
+#define MUX_MIN_VERSION 3
+#define MUX_REV_VERSION 0
 
 // Chunk object.
 typedef struct WebPChunk WebPChunk;
diff --git a/thirdparty/libwebp/src/utils/bit_reader_inl_utils.h b/thirdparty/libwebp/src/utils/bit_reader_inl_utils.h
index 404b9a6d8c..24f3af7b54 100644
--- a/thirdparty/libwebp/src/utils/bit_reader_inl_utils.h
+++ b/thirdparty/libwebp/src/utils/bit_reader_inl_utils.h
@@ -148,9 +148,9 @@ int VP8GetSigned(VP8BitReader* WEBP_RESTRICT const br, int v,
     const range_t value = (range_t)(br->value_ >> pos);
     const int32_t mask = (int32_t)(split - value) >> 31;  // -1 or 0
     br->bits_ -= 1;
-    br->range_ += mask;
+    br->range_ += (range_t)mask;
     br->range_ |= 1;
-    br->value_ -= (bit_t)((split + 1) & mask) << pos;
+    br->value_ -= (bit_t)((split + 1) & (uint32_t)mask) << pos;
     BT_TRACK(br);
     return (v ^ mask) - mask;
   }
diff --git a/thirdparty/libwebp/src/utils/huffman_utils.c b/thirdparty/libwebp/src/utils/huffman_utils.c
index 0cba0fbb7d..90c2fbf7c1 100644
--- a/thirdparty/libwebp/src/utils/huffman_utils.c
+++ b/thirdparty/libwebp/src/utils/huffman_utils.c
@@ -142,7 +142,7 @@ static int BuildHuffmanTable(HuffmanCode* const root_table, int root_bits,
 
   {
     int step;              // step size to replicate values in current table
-    uint32_t low = -1;     // low bits for current root entry
+    uint32_t low = 0xffffffffu;        // low bits for current root entry
     uint32_t mask = total_size - 1;    // mask for low bits
     uint32_t key = 0;      // reversed prefix code
     int num_nodes = 1;     // number of Huffman tree nodes
diff --git a/thirdparty/libwebp/src/utils/utils.h b/thirdparty/libwebp/src/utils/utils.h
index ef04f108fe..c5ee873357 100644
--- a/thirdparty/libwebp/src/utils/utils.h
+++ b/thirdparty/libwebp/src/utils/utils.h
@@ -64,7 +64,8 @@ WEBP_EXTERN void WebPSafeFree(void* const ptr);
 // Alignment
 
 #define WEBP_ALIGN_CST 31
-#define WEBP_ALIGN(PTR) (((uintptr_t)(PTR) + WEBP_ALIGN_CST) & ~WEBP_ALIGN_CST)
+#define WEBP_ALIGN(PTR) (((uintptr_t)(PTR) + WEBP_ALIGN_CST) & \
+                         ~(uintptr_t)WEBP_ALIGN_CST)
 
 #include <string.h>
 // memcpy() is the safe way of moving potentially unaligned 32b memory.
@@ -73,10 +74,19 @@ static WEBP_INLINE uint32_t WebPMemToUint32(const uint8_t* const ptr) {
   memcpy(&A, ptr, sizeof(A));
   return A;
 }
+
+static WEBP_INLINE int32_t WebPMemToInt32(const uint8_t* const ptr) {
+  return (int32_t)WebPMemToUint32(ptr);
+}
+
 static WEBP_INLINE void WebPUint32ToMem(uint8_t* const ptr, uint32_t val) {
   memcpy(ptr, &val, sizeof(val));
 }
 
+static WEBP_INLINE void WebPInt32ToMem(uint8_t* const ptr, int val) {
+  WebPUint32ToMem(ptr, (uint32_t)val);
+}
+
 //------------------------------------------------------------------------------
 // Reading/writing data.
 
diff --git a/thirdparty/libwebp/src/webp/format_constants.h b/thirdparty/libwebp/src/webp/format_constants.h
index eca6981a47..999035c5d2 100644
--- a/thirdparty/libwebp/src/webp/format_constants.h
+++ b/thirdparty/libwebp/src/webp/format_constants.h
@@ -55,7 +55,7 @@
 typedef enum {
   PREDICTOR_TRANSFORM      = 0,
   CROSS_COLOR_TRANSFORM    = 1,
-  SUBTRACT_GREEN           = 2,
+  SUBTRACT_GREEN_TRANSFORM = 2,
   COLOR_INDEXING_TRANSFORM = 3
 } VP8LImageTransformType;
 
diff --git a/thirdparty/libwebp/src/webp/types.h b/thirdparty/libwebp/src/webp/types.h
index 47f7f2b007..f255432e41 100644
--- a/thirdparty/libwebp/src/webp/types.h
+++ b/thirdparty/libwebp/src/webp/types.h
@@ -42,7 +42,11 @@ typedef long long int int64_t;
 # if defined(__GNUC__) && __GNUC__ >= 4
 #  define WEBP_EXTERN extern __attribute__ ((visibility ("default")))
 # else
-#  define WEBP_EXTERN extern
+#  if defined(_MSC_VER) && defined(WEBP_DLL)
+#   define WEBP_EXTERN __declspec(dllexport)
+#  else
+#   define WEBP_EXTERN extern
+#  endif
 # endif  /* __GNUC__ >= 4 */
 #endif  /* WEBP_EXTERN */