diff --git a/graphics/libplacebo/Makefile b/graphics/libplacebo/Makefile
index 6de5c32a8cd..ab9e6a1c043 100644
--- a/graphics/libplacebo/Makefile
+++ b/graphics/libplacebo/Makefile
@@ -3,6 +3,7 @@ COMMENT=	reusable library for GPU-accelerated video/image rendering
 GH_ACCOUNT=	haasn
 GH_PROJECT=	libplacebo
 GH_TAGNAME=	v7.351.0
+REVISION=	0
 CATEGORIES=	graphics
 
 SHARED_LIBS=	placebo	9.0
diff --git a/graphics/libplacebo/patches/patch-src_glsl_meson_build b/graphics/libplacebo/patches/patch-src_glsl_meson_build
new file mode 100644
index 00000000000..3dff69aeec3
--- /dev/null
+++ b/graphics/libplacebo/patches/patch-src_glsl_meson_build
@@ -0,0 +1,21 @@
+glsl/spirv_shaderc: check if shaderc recognizes Vulkan 1.4
+https://code.videolan.org/videolan/libplacebo/-/commit/3662b1f5d5a721f31cbf6c0ad090ac2345834cab
+
+Index: src/glsl/meson.build
+--- src/glsl/meson.build.orig
++++ src/glsl/meson.build
+@@ -4,6 +4,14 @@ components.set('shaderc', shaderc.found())
+ if shaderc.found()
+   build_deps += shaderc
+   sources += 'glsl/spirv_shaderc.c'
++
++  # Version check for shaderc is not possible because everything after v2023.8
++  # uses this version due to a malformed version line.
++  # See https://github.com/google/shaderc/issues/1496
++  conf_internal.set('PL_HAVE_SHADERC_VK_1_4',
++    cc.has_header_symbol('shaderc/shaderc.h', 'shaderc_env_version_vulkan_1_4', dependencies: shaderc))
++  conf_internal.set('PL_HAVE_SHADERC_VK_1_3',
++    cc.has_header_symbol('shaderc/shaderc.h', 'shaderc_env_version_vulkan_1_3', dependencies: shaderc))
+ endif
+ 
+ # glslang
diff --git a/graphics/libplacebo/patches/patch-src_glsl_spirv_shaderc_c b/graphics/libplacebo/patches/patch-src_glsl_spirv_shaderc_c
new file mode 100644
index 00000000000..46f4d5ec1fb
--- /dev/null
+++ b/graphics/libplacebo/patches/patch-src_glsl_spirv_shaderc_c
@@ -0,0 +1,50 @@
+glsl/spirv_shaderc: check if shaderc recognizes Vulkan 1.4
+https://code.videolan.org/videolan/libplacebo/-/commit/3662b1f5d5a721f31cbf6c0ad090ac2345834cab
+
+Index: src/glsl/spirv_shaderc.c
+--- src/glsl/spirv_shaderc.c.orig
++++ src/glsl/spirv_shaderc.c
+@@ -22,6 +22,17 @@
+ #include "spirv.h"
+ #include "utils.h"
+ 
++#define VK_API_VERSION_MAJOR(version) (((uint32_t)(version) >> 22U) & 0x7FU)
++#define VK_API_VERSION_MINOR(version) (((uint32_t)(version) >> 12U) & 0x3FFU)
++
++#if defined(PL_HAVE_SHADERC_VK_1_4)
++# define SHADERC_VULKAN_MAX PL_VLK_VERSION(1, 4)
++#elif defined(PL_HAVE_SHADERC_VK_1_3)
++# define SHADERC_VULKAN_MAX PL_VLK_VERSION(1, 3)
++#else
++# define SHADERC_VULKAN_MAX PL_VLK_VERSION(1, 2)
++#endif
++
+ const struct spirv_compiler pl_spirv_shaderc;
+ 
+ struct priv {
+@@ -57,8 +68,25 @@ static pl_spirv shaderc_create(pl_log log, struct pl_s
+ 
+     // Clamp to supported version by shaderc
+     if (ver < spirv->version.spv_version) {
++        PL_WARN(spirv, "SPIR-V %u.%u is not supported by the current"
++                       " version of shaderc. Falling back to %u.%u!",
++                spirv->version.spv_version >> 16, (spirv->version.spv_version >> 8) & 0xff,
++                ver >> 16, (ver >> 8) & 0xff);
+         spirv->version.spv_version = ver;
+         spirv->version.env_version = pl_spirv_version_to_vulkan(ver);
++    }
++
++    if (SHADERC_VULKAN_MAX < spirv->version.env_version) {
++        PL_WARN(spirv, "Vulkan %u.%u is not supported by the current"
++                       " version of shaderc. Falling back to %u.%u!",
++                       VK_API_VERSION_MAJOR(spirv->version.env_version),
++                       VK_API_VERSION_MINOR(spirv->version.env_version),
++                       VK_API_VERSION_MAJOR(SHADERC_VULKAN_MAX),
++                       VK_API_VERSION_MINOR(SHADERC_VULKAN_MAX));
++        // The SPIR-V version has already been clamped above.
++        // In practice, this only occurs for Vulkan 1.3 and 1.4,
++        // where the SPIR-V version is the same (1.6).
++        spirv->version.env_version = SHADERC_VULKAN_MAX;
+     }
+ 
+     pl_hash_merge(&spirv->signature, (uint64_t) spirv->version.spv_version << 32 |