diff --git a/codecs/wp2/Makefile b/codecs/wp2/Makefile
index 39130e58..97081bf5 100644
--- a/codecs/wp2/Makefile
+++ b/codecs/wp2/Makefile
@@ -1,4 +1,4 @@
-CODEC_URL = https://chromium.googlesource.com/codecs/libwebp2/+archive/c90b5b476004c9a98731ae1c175cebab5de50fbf.tar.gz
+CODEC_URL = https://github.com/RReverser/libwebp2/archive/emscripten-simd.tar.gz
 CODEC_DIR = node_modules/wp2
 CODEC_BUILD_ROOT := $(CODEC_DIR)/build
 CODEC_BASELINE_BUILD_DIR := $(CODEC_BUILD_ROOT)/baseline
@@ -37,7 +37,7 @@ $(OUT_JS):
 		$+
 
 %.o: %.cpp $(CODEC_DIR)/CMakeLists.txt
-	$(CXX) \
+	$(CXX) -c \
 		$(CXXFLAGS) \
 		-I $(CODEC_DIR) \
 		-o $@ \
@@ -56,7 +56,6 @@ $(CODEC_MT_SIMD_BUILD_DIR)/Makefile: CMAKE_FLAGS+=-DWP2_ENABLE_SIMD=1
 	emcmake cmake \
 		$(CMAKE_FLAGS) \
 		-DWP2_BUILD_TESTS=0 \
-		-DWP2_ENABLE_TESTS=0 \
 		-DWP2_BUILD_EXAMPLES=0 \
 		-DWP2_BUILD_EXTRAS=0 \
 		-B $(@D) \
@@ -64,7 +63,7 @@ $(CODEC_MT_SIMD_BUILD_DIR)/Makefile: CMAKE_FLAGS+=-DWP2_ENABLE_SIMD=1
 
 $(CODEC_DIR)/CMakeLists.txt:
 	mkdir -p $(CODEC_DIR)
-	curl -sL $(CODEC_URL) | tar xz -C $(CODEC_DIR)
+	curl -sL $(CODEC_URL) | tar xz --strip 1 -C $(CODEC_DIR)
 
 clean:
 	$(RM) $(OUT_JS) $(OUT_WASM) $(OUT_WORKER)
diff --git a/codecs/wp2/dec/wp2_dec.js b/codecs/wp2/dec/wp2_dec.js
new file mode 100644
index 00000000..4ab4b473
--- /dev/null
+++ b/codecs/wp2/dec/wp2_dec.js
@@ -0,0 +1,57 @@
+
+var wp2_dec = (function() {
+  var _scriptDir = import.meta.url;
+  
+  return (
+function(wp2_dec) {
+  wp2_dec = wp2_dec || {};
+
+
+var e;e||(e=typeof wp2_dec !== 'undefined' ? wp2_dec : {});var aa,ba;e.ready=new Promise(function(a,b){aa=a;ba=b});var r={},t;for(t in e)e.hasOwnProperty(t)&&(r[t]=e[t]);var u="",ca;u=self.location.href;_scriptDir&&(u=_scriptDir);0!==u.indexOf("blob:")?u=u.substr(0,u.lastIndexOf("/")+1):u="";ca=function(a){var b=new XMLHttpRequest;b.open("GET",a,!1);b.responseType="arraybuffer";b.send(null);return new Uint8Array(b.response)};var da=e.print||console.log.bind(console),v=e.printErr||console.warn.bind(console);
+for(t in r)r.hasOwnProperty(t)&&(e[t]=r[t]);r=null;var w;e.wasmBinary&&(w=e.wasmBinary);var noExitRuntime;e.noExitRuntime&&(noExitRuntime=e.noExitRuntime);"object"!==typeof WebAssembly&&y("no native wasm support detected");var z,ea=!1,fa=new TextDecoder("utf8");
+function ha(a,b,c){var d=A;if(0<c){c=b+c-1;for(var f=0;f<a.length;++f){var g=a.charCodeAt(f);if(55296<=g&&57343>=g){var l=a.charCodeAt(++f);g=65536+((g&1023)<<10)|l&1023}if(127>=g){if(b>=c)break;d[b++]=g}else{if(2047>=g){if(b+1>=c)break;d[b++]=192|g>>6}else{if(65535>=g){if(b+2>=c)break;d[b++]=224|g>>12}else{if(b+3>=c)break;d[b++]=240|g>>18;d[b++]=128|g>>12&63}d[b++]=128|g>>6&63}d[b++]=128|g&63}}d[b]=0}}var ia=new TextDecoder("utf-16le");
+function ja(a,b){var c=a>>1;for(b=c+b/2;!(c>=b)&&B[c];)++c;return ia.decode(A.subarray(a,c<<1))}function ka(a,b,c){void 0===c&&(c=2147483647);if(2>c)return 0;c-=2;var d=b;c=c<2*a.length?c/2:a.length;for(var f=0;f<c;++f)D[b>>1]=a.charCodeAt(f),b+=2;D[b>>1]=0;return b-d}function la(a){return 2*a.length}function ma(a,b){for(var c=0,d="";!(c>=b/4);){var f=E[a+4*c>>2];if(0==f)break;++c;65536<=f?(f-=65536,d+=String.fromCharCode(55296|f>>10,56320|f&1023)):d+=String.fromCharCode(f)}return d}
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+function xa(){var a=e.preRun.shift();ta.unshift(a)}var K=0,ya=null,L=null;e.preloadedImages={};e.preloadedAudios={};function y(a){if(e.onAbort)e.onAbort(a);v(a);ea=!0;a=new WebAssembly.RuntimeError("abort("+a+"). Build with -s ASSERTIONS=1 for more info.");ba(a);throw a;}function za(){var a=N;return String.prototype.startsWith?a.startsWith("data:application/octet-stream;base64,"):0===a.indexOf("data:application/octet-stream;base64,")}var N="wp2_dec.wasm";
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+function V(a,b,c){c=c||{};if(!("argPackAdvance"in b))throw new TypeError("registerType registeredInstance requires argPackAdvance");var d=b.name;a||U('type "'+d+'" must have a positive integer typeid pointer');if(S.hasOwnProperty(a)){if(c.M)return;U("Cannot register type '"+d+"' twice")}S[a]=b;delete T[a];R.hasOwnProperty(a)&&(b=R[a],delete R[a],b.forEach(function(f){f()}))}var Oa=[],W=[{},{value:void 0},{value:null},{value:!0},{value:!1}];
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+function Sa(a,b){switch(b){case 2:return function(c){return this.fromWireType(pa[c>>2])};case 3:return function(c){return this.fromWireType(qa[c>>3])};default:throw new TypeError("Unknown float type: "+a);}}function Ta(a){var b=Function;if(!(b instanceof Function))throw new TypeError("new_ called with constructor type "+typeof b+" which is not a function");var c=Ha(b.name||"unknownFunctionName",function(){});c.prototype=b.prototype;c=new c;a=b.apply(c,a);return a instanceof Object?a:c}
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+(function(){function a(f){e.asm=f.exports;J=e.asm.w;K--;e.monitorRunDependencies&&e.monitorRunDependencies(K);0==K&&(null!==ya&&(clearInterval(ya),ya=null),L&&(f=L,L=null,f()))}function b(f){a(f.instance)}function c(f){return Ca().then(function(g){return WebAssembly.instantiate(g,d)}).then(f,function(g){v("failed to asynchronously prepare wasm: "+g);y(g)})}var d={a:mb};K++;e.monitorRunDependencies&&e.monitorRunDependencies(K);if(e.instantiateWasm)try{return e.instantiateWasm(d,a)}catch(f){return v("Module.instantiateWasm callback failed with error: "+
+f),!1}(function(){return w||"function"!==typeof WebAssembly.instantiateStreaming||za()||"function"!==typeof fetch?c(b):fetch(N,{credentials:"same-origin"}).then(function(f){return WebAssembly.instantiateStreaming(f,d).then(b,function(g){v("wasm streaming compile failed: "+g);v("falling back to ArrayBuffer instantiation");return c(b)})})})().catch(ba);return{}})();
+var kb=e.___wasm_call_ctors=function(){return(kb=e.___wasm_call_ctors=e.asm.x).apply(null,arguments)},lb=e._malloc=function(){return(lb=e._malloc=e.asm.y).apply(null,arguments)},Y=e._free=function(){return(Y=e._free=e.asm.z).apply(null,arguments)},bb=e.___getTypeName=function(){return(bb=e.___getTypeName=e.asm.A).apply(null,arguments)};e.___embind_register_native_and_builtin_types=function(){return(e.___embind_register_native_and_builtin_types=e.asm.B).apply(null,arguments)};
+e.dynCall_jiji=function(){return(e.dynCall_jiji=e.asm.C).apply(null,arguments)};var nb;L=function ob(){nb||pb();nb||(L=ob)};
+function pb(){function a(){if(!nb&&(nb=!0,e.calledRun=!0,!ea)){O(ua);O(va);aa(e);if(e.onRuntimeInitialized)e.onRuntimeInitialized();if(e.postRun)for("function"==typeof e.postRun&&(e.postRun=[e.postRun]);e.postRun.length;){var b=e.postRun.shift();wa.unshift(b)}O(wa)}}if(!(0<K)){if(e.preRun)for("function"==typeof e.preRun&&(e.preRun=[e.preRun]);e.preRun.length;)xa();O(ta);0<K||(e.setStatus?(e.setStatus("Running..."),setTimeout(function(){setTimeout(function(){e.setStatus("")},1);a()},1)):a())}}
+e.run=pb;if(e.preInit)for("function"==typeof e.preInit&&(e.preInit=[e.preInit]);0<e.preInit.length;)e.preInit.pop()();noExitRuntime=!0;pb();
+
+
+  return wp2_dec.ready
+}
+);
+})();
+export default wp2_dec;
\ No newline at end of file
diff --git a/codecs/wp2/dec/wp2_dec.wasm b/codecs/wp2/dec/wp2_dec.wasm
new file mode 100644
index 00000000..df589088
Binary files /dev/null and b/codecs/wp2/dec/wp2_dec.wasm differ
diff --git a/codecs/wp2/enc/wp2_enc.js b/codecs/wp2/enc/wp2_enc.js
new file mode 100644
index 00000000..728c880f
--- /dev/null
+++ b/codecs/wp2/enc/wp2_enc.js
@@ -0,0 +1,60 @@
+
+var wp2_enc = (function() {
+  var _scriptDir = import.meta.url;
+  
+  return (
+function(wp2_enc) {
+  wp2_enc = wp2_enc || {};
+
+
+var f;f||(f=typeof wp2_enc !== 'undefined' ? wp2_enc : {});var aa,ba;f.ready=new Promise(function(a,b){aa=a;ba=b});var r={},t;for(t in f)f.hasOwnProperty(t)&&(r[t]=f[t]);var u="",ca;u=self.location.href;_scriptDir&&(u=_scriptDir);0!==u.indexOf("blob:")?u=u.substr(0,u.lastIndexOf("/")+1):u="";ca=function(a){var b=new XMLHttpRequest;b.open("GET",a,!1);b.responseType="arraybuffer";b.send(null);return new Uint8Array(b.response)};var da=f.print||console.log.bind(console),v=f.printErr||console.warn.bind(console);
+for(t in r)r.hasOwnProperty(t)&&(f[t]=r[t]);r=null;var w;f.wasmBinary&&(w=f.wasmBinary);var noExitRuntime;f.noExitRuntime&&(noExitRuntime=f.noExitRuntime);"object"!==typeof WebAssembly&&A("no native wasm support detected");var B,ea=!1,fa=new TextDecoder("utf8");function C(a,b){if(!a)return"";b=a+b;for(var c=a;!(c>=b)&&D[c];)++c;return fa.decode(D.subarray(a,c))}
+function ia(a,b,c){var d=D;if(0<c){c=b+c-1;for(var e=0;e<a.length;++e){var g=a.charCodeAt(e);if(55296<=g&&57343>=g){var m=a.charCodeAt(++e);g=65536+((g&1023)<<10)|m&1023}if(127>=g){if(b>=c)break;d[b++]=g}else{if(2047>=g){if(b+1>=c)break;d[b++]=192|g>>6}else{if(65535>=g){if(b+2>=c)break;d[b++]=224|g>>12}else{if(b+3>=c)break;d[b++]=240|g>>18;d[b++]=128|g>>12&63}d[b++]=128|g>>6&63}d[b++]=128|g&63}}d[b]=0}}var ja=new TextDecoder("utf-16le");
+function ka(a,b){var c=a>>1;for(b=c+b/2;!(c>=b)&&E[c];)++c;return ja.decode(D.subarray(a,c<<1))}function la(a,b,c){void 0===c&&(c=2147483647);if(2>c)return 0;c-=2;var d=b;c=c<2*a.length?c/2:a.length;for(var e=0;e<c;++e)G[b>>1]=a.charCodeAt(e),b+=2;G[b>>1]=0;return b-d}function ma(a){return 2*a.length}function na(a,b){for(var c=0,d="";!(c>=b/4);){var e=H[a+4*c>>2];if(0==e)break;++c;65536<=e?(e-=65536,d+=String.fromCharCode(55296|e>>10,56320|e&1023)):d+=String.fromCharCode(e)}return d}
+function oa(a,b,c){void 0===c&&(c=2147483647);if(4>c)return 0;var d=b;c=d+c-4;for(var e=0;e<a.length;++e){var g=a.charCodeAt(e);if(55296<=g&&57343>=g){var m=a.charCodeAt(++e);g=65536+((g&1023)<<10)|m&1023}H[b>>2]=g;b+=4;if(b+4>c)break}H[b>>2]=0;return b-d}function pa(a){for(var b=0,c=0;c<a.length;++c){var d=a.charCodeAt(c);55296<=d&&57343>=d&&++c;b+=4}return b}var I,J,D,G,E,H,K,qa,ra;
+function sa(a){I=a;f.HEAP8=J=new Int8Array(a);f.HEAP16=G=new Int16Array(a);f.HEAP32=H=new Int32Array(a);f.HEAPU8=D=new Uint8Array(a);f.HEAPU16=E=new Uint16Array(a);f.HEAPU32=K=new Uint32Array(a);f.HEAPF32=qa=new Float32Array(a);f.HEAPF64=ra=new Float64Array(a)}var ta=f.INITIAL_MEMORY||16777216;f.wasmMemory?B=f.wasmMemory:B=new WebAssembly.Memory({initial:ta/65536,maximum:32768});B&&(I=B.buffer);ta=I.byteLength;sa(I);var L,ua=[],va=[],wa=[],xa=[];
+function ya(){var a=f.preRun.shift();ua.unshift(a)}var M=0,za=null,N=null;f.preloadedImages={};f.preloadedAudios={};function A(a){if(f.onAbort)f.onAbort(a);v(a);ea=!0;a=new WebAssembly.RuntimeError("abort("+a+"). Build with -s ASSERTIONS=1 for more info.");ba(a);throw a;}function Aa(){var a=O;return String.prototype.startsWith?a.startsWith("data:application/octet-stream;base64,"):0===a.indexOf("data:application/octet-stream;base64,")}var O="wp2_enc.wasm";
+if(!Aa()){var Ba=O;O=f.locateFile?f.locateFile(Ba,u):u+Ba}function Ca(){try{if(w)return new Uint8Array(w);if(ca)return ca(O);throw"both async and sync fetching of the wasm failed";}catch(a){A(a)}}function Da(){return w||"function"!==typeof fetch?Promise.resolve().then(Ca):fetch(O,{credentials:"same-origin"}).then(function(a){if(!a.ok)throw"failed to load wasm binary file at '"+O+"'";return a.arrayBuffer()}).catch(function(){return Ca()})}
+function P(a){for(;0<a.length;){var b=a.shift();if("function"==typeof b)b(f);else{var c=b.T;"number"===typeof c?void 0===b.M?L.get(c)():L.get(c)(b.M):c(void 0===b.M?null:b.M)}}}function Ea(a){this.L=a-16;this.ea=function(b){H[this.L+8>>2]=b};this.ba=function(b){H[this.L+0>>2]=b};this.ca=function(){H[this.L+4>>2]=0};this.aa=function(){J[this.L+12>>0]=0};this.da=function(){J[this.L+13>>0]=0};this.Y=function(b,c){this.ea(b);this.ba(c);this.ca();this.aa();this.da()}}function Q(){return 0<Q.P}var Fa={};
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+function Oa(a){switch(a){case 1:return 0;case 2:return 1;case 4:return 2;case 8:return 3;default:throw new TypeError("Unknown type size: "+a);}}var Pa=void 0;function U(a){for(var b="";D[a];)b+=Pa[D[a++]];return b}var Qa=void 0;function W(a){throw new Qa(a);}
+function T(a,b,c){c=c||{};if(!("argPackAdvance"in b))throw new TypeError("registerType registeredInstance requires argPackAdvance");var d=b.name;a||W('type "'+d+'" must have a positive integer typeid pointer');if(S.hasOwnProperty(a)){if(c.X)return;W("Cannot register type '"+d+"' twice")}S[a]=b;delete Ia[a];R.hasOwnProperty(a)&&(b=R[a],delete R[a],b.forEach(function(e){e()}))}var Ra=[],X=[{},{value:void 0},{value:null},{value:!0},{value:!1}];
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+function Xa(a,b){var c=f;if(void 0===c[a].J){var d=c[a];c[a]=function(){c[a].J.hasOwnProperty(arguments.length)||W("Function '"+b+"' called with an invalid number of arguments ("+arguments.length+") - expects one of ("+c[a].J+")!");return c[a].J[arguments.length].apply(this,arguments)};c[a].J=[];c[a].J[d.R]=d}}
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+var ob={o:function(a,b,c,d){A("Assertion failed: "+C(a)+", at: "+[b?C(b):"unknown filename",c,d?C(d):"unknown function"])},z:function(a){return nb(a+16)+16},B:function(){},y:function(a,b,c){(new Ea(a)).Y(b,c);"uncaught_exception"in Q?Q.P++:Q.P=1;throw a;},n:function(a){var b=Fa[a];delete Fa[a];var c=b.Z,d=b.$,e=b.O,g=e.map(function(m){return m.W}).concat(e.map(function(m){return m.ga}));Na([a],g,function(m){var h={};e.forEach(function(k,l){var n=m[l],q=k.U,x=k.V,y=m[l+e.length],p=k.fa,ha=k.ha;h[k.S]=
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+a:B,s:function(){}};
+(function(){function a(e){f.asm=e.exports;L=f.asm.C;M--;f.monitorRunDependencies&&f.monitorRunDependencies(M);0==M&&(null!==za&&(clearInterval(za),za=null),N&&(e=N,N=null,e()))}function b(e){a(e.instance)}function c(e){return Da().then(function(g){return WebAssembly.instantiate(g,d)}).then(e,function(g){v("failed to asynchronously prepare wasm: "+g);A(g)})}var d={a:ob};M++;f.monitorRunDependencies&&f.monitorRunDependencies(M);if(f.instantiateWasm)try{return f.instantiateWasm(d,a)}catch(e){return v("Module.instantiateWasm callback failed with error: "+
+e),!1}(function(){return w||"function"!==typeof WebAssembly.instantiateStreaming||Aa()||"function"!==typeof fetch?c(b):fetch(O,{credentials:"same-origin"}).then(function(e){return WebAssembly.instantiateStreaming(e,d).then(b,function(g){v("wasm streaming compile failed: "+g);v("falling back to ArrayBuffer instantiation");return c(b)})})})().catch(ba);return{}})();
+var mb=f.___wasm_call_ctors=function(){return(mb=f.___wasm_call_ctors=f.asm.D).apply(null,arguments)},nb=f._malloc=function(){return(nb=f._malloc=f.asm.E).apply(null,arguments)},Z=f._free=function(){return(Z=f._free=f.asm.F).apply(null,arguments)},cb=f.___getTypeName=function(){return(cb=f.___getTypeName=f.asm.G).apply(null,arguments)};f.___embind_register_native_and_builtin_types=function(){return(f.___embind_register_native_and_builtin_types=f.asm.H).apply(null,arguments)};
+f.dynCall_jiji=function(){return(f.dynCall_jiji=f.asm.I).apply(null,arguments)};var pb;N=function qb(){pb||rb();pb||(N=qb)};
+function rb(){function a(){if(!pb&&(pb=!0,f.calledRun=!0,!ea)){P(va);P(wa);aa(f);if(f.onRuntimeInitialized)f.onRuntimeInitialized();if(f.postRun)for("function"==typeof f.postRun&&(f.postRun=[f.postRun]);f.postRun.length;){var b=f.postRun.shift();xa.unshift(b)}P(xa)}}if(!(0<M)){if(f.preRun)for("function"==typeof f.preRun&&(f.preRun=[f.preRun]);f.preRun.length;)ya();P(ua);0<M||(f.setStatus?(f.setStatus("Running..."),setTimeout(function(){setTimeout(function(){f.setStatus("")},1);a()},1)):a())}}
+f.run=rb;if(f.preInit)for("function"==typeof f.preInit&&(f.preInit=[f.preInit]);0<f.preInit.length;)f.preInit.pop()();noExitRuntime=!0;rb();
+
+
+  return wp2_enc.ready
+}
+);
+})();
+export default wp2_enc;
\ No newline at end of file
diff --git a/codecs/wp2/enc/wp2_enc.wasm b/codecs/wp2/enc/wp2_enc.wasm
new file mode 100644
index 00000000..472e0e0c
Binary files /dev/null and b/codecs/wp2/enc/wp2_enc.wasm differ
diff --git a/codecs/wp2/enc/wp2_enc_mt.js b/codecs/wp2/enc/wp2_enc_mt.js
new file mode 100644
index 00000000..fde2370d
--- /dev/null
+++ b/codecs/wp2/enc/wp2_enc_mt.js
@@ -0,0 +1,96 @@
+
+var wp2_enc_mt = (function() {
+  var _scriptDir = import.meta.url;
+  
+  return (
+function(wp2_enc_mt) {
+  wp2_enc_mt = wp2_enc_mt || {};
+
+
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+function Ba(a){return 2*a.length}function Ca(a,b){for(var c=0,d="";!(c>=b/4);){var f=y()[a+4*c>>2];if(0==f)break;++c;65536<=f?(f-=65536,d+=String.fromCharCode(55296|f>>10,56320|f&1023)):d+=String.fromCharCode(f)}return d}function Da(a,b,c){void 0===c&&(c=2147483647);if(4>c)return 0;var d=b;c=d+c-4;for(var f=0;f<a.length;++f){var g=a.charCodeAt(f);if(55296<=g&&57343>=g){var l=a.charCodeAt(++f);g=65536+((g&1023)<<10)|l&1023}y()[b>>2]=g;b+=4;if(b+4>c)break}y()[b>>2]=0;return b-d}
+function Ea(a){for(var b=0,c=0;c<a.length;++c){var d=a.charCodeAt(c);55296<=d&&57343>=d&&++c;b+=4}return b}var m,aa,ca,da,fa,ha,ia,ka,ma;function p(a){m=a;A.HEAP8=aa=new Int8Array(a);A.HEAP16=da=new Int16Array(a);A.HEAP32=ha=new Int32Array(a);A.HEAPU8=ca=new Uint8Array(a);A.HEAPU16=fa=new Uint16Array(a);A.HEAPU32=ia=new Uint32Array(a);A.HEAPF32=ka=new Float32Array(a);A.HEAPF64=ma=new Float64Array(a)}var Fa=A.INITIAL_MEMORY||16777216;
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+function Xa(a){if(D)throw"Internal Error! cleanupThread() can only ever be called from main application thread!";if(!a)throw"Internal Error! Null pthread_ptr in cleanupThread!";y()[a+12>>2]=0;(a=R.Ea[a])&&R.Qa(a.worker)}
+var R={Pb:1,Wb:{fb:0,gb:0},Ca:[],Ga:[],ub:function(){for(var a=navigator.hardwareConcurrency,b=0;b<a;++b)R.Wa()},vb:function(){R.Aa=S(232);for(var a=0;58>a;++a)z()[R.Aa/4+a]=0;y()[R.Aa+12>>2]=R.Aa;a=R.Aa+156;y()[a>>2]=a;var b=S(512);for(a=0;128>a;++a)z()[b/4+a]=0;Atomics.store(z(),R.Aa+104>>2,b);Atomics.store(z(),R.Aa+40>>2,R.Aa);Atomics.store(z(),R.Aa+44>>2,42);R.$a();Va(R.Aa,!1,1);Ya(R.Aa)},wb:function(){R.$a();na(A);R.receiveObjectTransfer=R.Bb;R.setThreadStatus=R.Cb;R.threadCancel=R.Mb;R.threadExit=
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+d=Math.max(16777216,a,d);0<d%65536&&(d+=65536-d%65536);a:{try{k.grow(Math.min(2147483648,d)-m.byteLength+65535>>>16);p(k.buffer);var f=1;break a}catch(g){}f=void 0}if(f)return!0}return!1},G:function(a,b,c){return Vb(a)?Wb(a,b,c):Yb(a,b,c)},d:function(){},H:function(a,b){var c={};b>>=2;c.alpha=!!y()[b];c.depth=!!y()[b+1];c.stencil=!!y()[b+2];c.antialias=!!y()[b+3];c.premultipliedAlpha=!!y()[b+4];c.preserveDrawingBuffer=!!y()[b+5];var d=y()[b+6];c.powerPreference=dc[d];c.failIfMajorPerformanceCaveat=
+!!y()[b+7];c.xb=y()[b+8];c.Xb=y()[b+9];c.Ya=y()[b+10];c.kb=y()[b+11];c.$b=y()[b+12];c.ac=y()[b+13];a=Vb(a);!a||c.kb?c=0:(a=a.getContext("webgl",c))?(b=S(8),y()[b+4>>2]=Q|0,d={Ub:b,attributes:c,version:c.xb,Na:a},a.canvas&&(a.canvas.Oa=d),("undefined"===typeof c.Ya||c.Ya)&&bc(d),c=b):c=0;return c},K:fc,z:gc,s:hc,B:function(){R.vb()},a:k||A.wasmMemory,D:eb,v:function(a,b,c,d){if("undefined"===typeof SharedArrayBuffer)return H("Current environment does not support SharedArrayBuffer, pthreads are not available!"),
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+x+108+24>>2);h&&(y()[h>>2]=E);n&&(y()[n>>2]=x)}else H("pthread_getschedparam called with a null thread pointer!");h=y()[b+20>>2];n=y()[b+24>>2];y()[b+20>>2]=q;y()[b+24>>2]=v}else h=y()[b+20>>2],n=y()[b+24>>2]}else r=2097152;(b=0==g)?g=qc(16,r):(g-=r,va(0<g));q=S(232);for(v=0;58>v;++v)z()[(q>>2)+v]=0;y()[a>>2]=q;y()[q+12>>2]=q;a=q+156;y()[a>>2]=a;c={Ha:g,Ja:r,Ra:b,fb:h,gb:n,Xa:l,Lb:c,Ia:q,yb:Q|0,Ka:d,Ob:f};D?(c.Rb="spawnThread",postMessage(c,f)):bb(c);return 0},R:function(a,b){return kc(a,b)},c:jc,
+A:function(){}};
+(function(){function a(f,g){A.asm=f.exports;L=A.asm.V;ta=g;if(!D){var l=R.Ca.length;R.Ca.forEach(function(h){R.ab(h,function(){if(!--l&&(N--,A.monitorRunDependencies&&A.monitorRunDependencies(N),0==N&&(null!==La&&(clearInterval(La),La=null),O))){var n=O;O=null;n()}})})}}function b(f){a(f.instance,f.module)}function c(f){return Oa().then(function(g){return WebAssembly.instantiate(g,d)}).then(f,function(g){H("failed to asynchronously prepare wasm: "+g);J(g)})}var d={a:rc};D||(va(!D,"addRunDependency cannot be used in a pthread worker"),
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+return c(b)})})})().catch(oa);return{}})();var oc=A.___wasm_call_ctors=function(){return(oc=A.___wasm_call_ctors=A.asm.W).apply(null,arguments)},S=A._malloc=function(){return(S=A._malloc=A.asm.X).apply(null,arguments)},T=A._free=function(){return(T=A._free=A.asm.Y).apply(null,arguments)},Gb=A.___getTypeName=function(){return(Gb=A.___getTypeName=A.asm.Z).apply(null,arguments)};
+A.___embind_register_native_and_builtin_types=function(){return(A.___embind_register_native_and_builtin_types=A.asm._).apply(null,arguments)};var ic=A._emscripten_get_global_libc=function(){return(ic=A._emscripten_get_global_libc=A.asm.$).apply(null,arguments)};A.___em_js__initPthreadsJS=function(){return(A.___em_js__initPthreadsJS=A.asm.aa).apply(null,arguments)};
+var Pb=A.stackSave=function(){return(Pb=A.stackSave=A.asm.ba).apply(null,arguments)},cb=A.stackRestore=function(){return(cb=A.stackRestore=A.asm.ca).apply(null,arguments)},Qb=A.stackAlloc=function(){return(Qb=A.stackAlloc=A.asm.da).apply(null,arguments)},qc=A._memalign=function(){return(qc=A._memalign=A.asm.ea).apply(null,arguments)};A._emscripten_main_browser_thread_id=function(){return(A._emscripten_main_browser_thread_id=A.asm.fa).apply(null,arguments)};
+var $a=A.___pthread_tsd_run_dtors=function(){return($a=A.___pthread_tsd_run_dtors=A.asm.ga).apply(null,arguments)},ab=A._emscripten_main_thread_process_queued_calls=function(){return(ab=A._emscripten_main_thread_process_queued_calls=A.asm.ha).apply(null,arguments)};A._emscripten_current_thread_process_queued_calls=function(){return(A._emscripten_current_thread_process_queued_calls=A.asm.ia).apply(null,arguments)};
+var Ya=A._emscripten_register_main_browser_thread_id=function(){return(Ya=A._emscripten_register_main_browser_thread_id=A.asm.ja).apply(null,arguments)},Pa=A._do_emscripten_dispatch_to_thread=function(){return(Pa=A._do_emscripten_dispatch_to_thread=A.asm.ka).apply(null,arguments)};A._emscripten_async_run_in_main_thread=function(){return(A._emscripten_async_run_in_main_thread=A.asm.la).apply(null,arguments)};
+A._emscripten_sync_run_in_main_thread=function(){return(A._emscripten_sync_run_in_main_thread=A.asm.ma).apply(null,arguments)};A._emscripten_sync_run_in_main_thread_0=function(){return(A._emscripten_sync_run_in_main_thread_0=A.asm.na).apply(null,arguments)};A._emscripten_sync_run_in_main_thread_1=function(){return(A._emscripten_sync_run_in_main_thread_1=A.asm.oa).apply(null,arguments)};
+A._emscripten_sync_run_in_main_thread_2=function(){return(A._emscripten_sync_run_in_main_thread_2=A.asm.pa).apply(null,arguments)};A._emscripten_sync_run_in_main_thread_xprintf_varargs=function(){return(A._emscripten_sync_run_in_main_thread_xprintf_varargs=A.asm.qa).apply(null,arguments)};A._emscripten_sync_run_in_main_thread_3=function(){return(A._emscripten_sync_run_in_main_thread_3=A.asm.ra).apply(null,arguments)};
+var pc=A._emscripten_sync_run_in_main_thread_4=function(){return(pc=A._emscripten_sync_run_in_main_thread_4=A.asm.sa).apply(null,arguments)};A._emscripten_sync_run_in_main_thread_5=function(){return(A._emscripten_sync_run_in_main_thread_5=A.asm.ta).apply(null,arguments)};A._emscripten_sync_run_in_main_thread_6=function(){return(A._emscripten_sync_run_in_main_thread_6=A.asm.ua).apply(null,arguments)};
+A._emscripten_sync_run_in_main_thread_7=function(){return(A._emscripten_sync_run_in_main_thread_7=A.asm.va).apply(null,arguments)};var Rb=A._emscripten_run_in_main_runtime_thread_js=function(){return(Rb=A._emscripten_run_in_main_runtime_thread_js=A.asm.wa).apply(null,arguments)},Xb=A.__emscripten_call_on_thread=function(){return(Xb=A.__emscripten_call_on_thread=A.asm.xa).apply(null,arguments)};A._emscripten_tls_init=function(){return(A._emscripten_tls_init=A.asm.ya).apply(null,arguments)};
+A.dynCall_jiji=function(){return(A.dynCall_jiji=A.asm.za).apply(null,arguments)};var Za=A._main_thread_futex=140556;A.PThread=R;A.PThread=R;A._pthread_self=jc;A.wasmMemory=k;A.ExitStatus=sc;var tc;function sc(a){this.name="ExitStatus";this.message="Program terminated with exit("+a+")";this.status=a}O=function uc(){tc||vc();tc||(O=uc)};
+function vc(){function a(){if(!tc&&(tc=!0,A.calledRun=!0,!ua)){Ra(Ha);D||Ra(Ia);na(A);if(A.onRuntimeInitialized)A.onRuntimeInitialized();if(!D){if(A.postRun)for("function"==typeof A.postRun&&(A.postRun=[A.postRun]);A.postRun.length;){var b=A.postRun.shift();Ja.unshift(b)}Ra(Ja)}}}if(!(0<N)){if(!D){if(A.preRun)for("function"==typeof A.preRun&&(A.preRun=[A.preRun]);A.preRun.length;)Ka();Ra(Ga)}0<N||(A.setStatus?(A.setStatus("Running..."),setTimeout(function(){setTimeout(function(){A.setStatus("")},
+1);a()},1)):a())}}A.run=vc;if(A.preInit)for("function"==typeof A.preInit&&(A.preInit=[A.preInit]);0<A.preInit.length;)A.preInit.pop()();D||(noExitRuntime=!0);D?R.wb():vc();
+
+
+  return wp2_enc_mt.ready
+}
+);
+})();
+export default wp2_enc_mt;
\ No newline at end of file
diff --git a/codecs/wp2/enc/wp2_enc_mt.wasm b/codecs/wp2/enc/wp2_enc_mt.wasm
new file mode 100644
index 00000000..f99f754e
Binary files /dev/null and b/codecs/wp2/enc/wp2_enc_mt.wasm differ
diff --git a/codecs/wp2/enc/wp2_enc_mt_simd.js b/codecs/wp2/enc/wp2_enc_mt_simd.js
new file mode 100644
index 00000000..12797723
--- /dev/null
+++ b/codecs/wp2/enc/wp2_enc_mt_simd.js
@@ -0,0 +1,97 @@
+
+var wp2_enc_mt_simd = (function() {
+  var _scriptDir = import.meta.url;
+  
+  return (
+function(wp2_enc_mt_simd) {
+  wp2_enc_mt_simd = wp2_enc_mt_simd || {};
+
+
+function e(){k.buffer!=m&&p(k.buffer);return aa}function u(){k.buffer!=m&&p(k.buffer);return ca}function w(){k.buffer!=m&&p(k.buffer);return da}function ea(){k.buffer!=m&&p(k.buffer);return fa}function y(){k.buffer!=m&&p(k.buffer);return ha}function z(){k.buffer!=m&&p(k.buffer);return ia}function ja(){k.buffer!=m&&p(k.buffer);return ka}function la(){k.buffer!=m&&p(k.buffer);return ma}var A;A||(A=typeof wp2_enc_mt_simd !== 'undefined' ? wp2_enc_mt_simd : {});var na,oa;
+A.ready=new Promise(function(a,b){na=a;oa=b});var B={},C;for(C in A)A.hasOwnProperty(C)&&(B[C]=A[C]);var D=A.ENVIRONMENT_IS_PTHREAD||!1;D&&(m=A.buffer);var F="";function qa(a){return A.locateFile?A.locateFile(a,F):F+a}var ra;F=self.location.href;_scriptDir&&(F=_scriptDir);0!==F.indexOf("blob:")?F=F.substr(0,F.lastIndexOf("/")+1):F="";ra=function(a){var b=new XMLHttpRequest;b.open("GET",a,!1);b.responseType="arraybuffer";b.send(null);return new Uint8Array(b.response)};
+var sa=A.print||console.log.bind(console),H=A.printErr||console.warn.bind(console);for(C in B)B.hasOwnProperty(C)&&(A[C]=B[C]);B=null;var I;A.wasmBinary&&(I=A.wasmBinary);var noExitRuntime;A.noExitRuntime&&(noExitRuntime=A.noExitRuntime);"object"!==typeof WebAssembly&&J("no native wasm support detected");var k,ta,threadInfoStruct=0,selfThreadId=0,ua=!1;function va(a,b){a||J("Assertion failed: "+b)}
+function wa(a,b,c){c=b+c;for(var d="";!(b>=c);){var f=a[b++];if(!f)break;if(f&128){var g=a[b++]&63;if(192==(f&224))d+=String.fromCharCode((f&31)<<6|g);else{var l=a[b++]&63;f=224==(f&240)?(f&15)<<12|g<<6|l:(f&7)<<18|g<<12|l<<6|a[b++]&63;65536>f?d+=String.fromCharCode(f):(f-=65536,d+=String.fromCharCode(55296|f>>10,56320|f&1023))}}else d+=String.fromCharCode(f)}return d}function K(a,b){return a?wa(u(),a,b):""}
+function xa(a,b,c){var d=u();if(0<c){c=b+c-1;for(var f=0;f<a.length;++f){var g=a.charCodeAt(f);if(55296<=g&&57343>=g){var l=a.charCodeAt(++f);g=65536+((g&1023)<<10)|l&1023}if(127>=g){if(b>=c)break;d[b++]=g}else{if(2047>=g){if(b+1>=c)break;d[b++]=192|g>>6}else{if(65535>=g){if(b+2>=c)break;d[b++]=224|g>>12}else{if(b+3>=c)break;d[b++]=240|g>>18;d[b++]=128|g>>12&63}d[b++]=128|g>>6&63}d[b++]=128|g&63}}d[b]=0}}
+function ya(a){for(var b=0,c=0;c<a.length;++c){var d=a.charCodeAt(c);55296<=d&&57343>=d&&(d=65536+((d&1023)<<10)|a.charCodeAt(++c)&1023);127>=d?++b:b=2047>=d?b+2:65535>=d?b+3:b+4}return b}function za(a,b){for(var c=0,d="";;){var f=w()[a+2*c>>1];if(0==f||c==b/2)return d;++c;d+=String.fromCharCode(f)}}function Aa(a,b,c){void 0===c&&(c=2147483647);if(2>c)return 0;c-=2;var d=b;c=c<2*a.length?c/2:a.length;for(var f=0;f<c;++f){var g=a.charCodeAt(f);w()[b>>1]=g;b+=2}w()[b>>1]=0;return b-d}
+function Ba(a){return 2*a.length}function Ca(a,b){for(var c=0,d="";!(c>=b/4);){var f=y()[a+4*c>>2];if(0==f)break;++c;65536<=f?(f-=65536,d+=String.fromCharCode(55296|f>>10,56320|f&1023)):d+=String.fromCharCode(f)}return d}function Da(a,b,c){void 0===c&&(c=2147483647);if(4>c)return 0;var d=b;c=d+c-4;for(var f=0;f<a.length;++f){var g=a.charCodeAt(f);if(55296<=g&&57343>=g){var l=a.charCodeAt(++f);g=65536+((g&1023)<<10)|l&1023}y()[b>>2]=g;b+=4;if(b+4>c)break}y()[b>>2]=0;return b-d}
+function Ea(a){for(var b=0,c=0;c<a.length;++c){var d=a.charCodeAt(c);55296<=d&&57343>=d&&++c;b+=4}return b}var m,aa,ca,da,fa,ha,ia,ka,ma;function p(a){m=a;A.HEAP8=aa=new Int8Array(a);A.HEAP16=da=new Int16Array(a);A.HEAP32=ha=new Int32Array(a);A.HEAPU8=ca=new Uint8Array(a);A.HEAPU16=fa=new Uint16Array(a);A.HEAPU32=ia=new Uint32Array(a);A.HEAPF32=ka=new Float32Array(a);A.HEAPF64=ma=new Float64Array(a)}var Fa=A.INITIAL_MEMORY||16777216;
+if(D)k=A.wasmMemory,m=A.buffer;else if(A.wasmMemory)k=A.wasmMemory;else if(k=new WebAssembly.Memory({initial:Fa/65536,maximum:32768,shared:!0}),!(k.buffer instanceof SharedArrayBuffer))throw H("requested a shared WebAssembly.Memory but the returned buffer is not a SharedArrayBuffer, indicating that while the browser has SharedArrayBuffer it does not have WebAssembly threads support - you may need to set a flag"),Error("bad memory");k&&(m=k.buffer);Fa=m.byteLength;p(m);var L,Ga=[],Ha=[],Ia=[],Ja=[];
+function Ka(){var a=A.preRun.shift();Ga.unshift(a)}var N=0,La=null,O=null;A.preloadedImages={};A.preloadedAudios={};function J(a){if(A.onAbort)A.onAbort(a);D&&console.error("Pthread aborting at "+Error().stack);H(a);ua=!0;a=new WebAssembly.RuntimeError("abort("+a+"). Build with -s ASSERTIONS=1 for more info.");oa(a);throw a;}function Ma(){var a=P;return String.prototype.startsWith?a.startsWith("data:application/octet-stream;base64,"):0===a.indexOf("data:application/octet-stream;base64,")}var P="wp2_enc_mt_simd.wasm";
+Ma()||(P=qa(P));function Na(){try{if(I)return new Uint8Array(I);if(ra)return ra(P);throw"both async and sync fetching of the wasm failed";}catch(a){J(a)}}function Oa(){return I||"function"!==typeof fetch?Promise.resolve().then(Na):fetch(P,{credentials:"same-origin"}).then(function(a){if(!a.ok)throw"failed to load wasm binary file at '"+P+"'";return a.arrayBuffer()}).catch(function(){return Na()})}var Qa={126117:function(a,b){setTimeout(function(){Pa(a,b)},0)},126195:function(){throw"Canceled!";}};
+function Ra(a){for(;0<a.length;){var b=a.shift();if("function"==typeof b)b(A);else{var c=b.ob;"number"===typeof c?void 0===b.Ma?L.get(c)():L.get(c)(b.Ma):c(void 0===b.Ma?null:b.Ma)}}}function Sa(a,b,c){var d;-1!=a.indexOf("j")?d=c&&c.length?A["dynCall_"+a].apply(null,[b].concat(c)):A["dynCall_"+a].call(null,b):d=L.get(b).apply(null,c);return d}A.dynCall=Sa;var Q=0,Ta=0,Ua=0;function Va(a,b,c){Q=a|0;Ua=b|0;Ta=c|0}A.registerPthreadPtr=Va;
+function Wa(a,b){if(0>=a||a>e().length||a&1||0>b)return-28;if(0==b)return 0;2147483647<=b&&(b=Infinity);var c=Atomics.load(y(),R.eb>>2),d=0;if(c==a&&Atomics.compareExchange(y(),R.eb>>2,c,0)==c&&(--b,d=1,0>=b))return 1;a=Atomics.notify(y(),a>>2,b);if(0<=a)return a+d;throw"Atomics.notify returned an unexpected value "+a;}A._emscripten_futex_wake=Wa;
+function Xa(a){if(D)throw"Internal Error! cleanupThread() can only ever be called from main application thread!";if(!a)throw"Internal Error! Null pthread_ptr in cleanupThread!";y()[a+12>>2]=0;(a=R.Ga[a])&&R.Sa(a.worker)}
+var R={Rb:1,Yb:{hb:0,ib:0},Ea:[],Ia:[],wb:function(){for(var a=navigator.hardwareConcurrency,b=0;b<a;++b)R.Ya()},xb:function(){R.Ca=S(232);for(var a=0;58>a;++a)z()[R.Ca/4+a]=0;y()[R.Ca+12>>2]=R.Ca;a=R.Ca+156;y()[a>>2]=a;var b=S(512);for(a=0;128>a;++a)z()[b/4+a]=0;Atomics.store(z(),R.Ca+104>>2,b);Atomics.store(z(),R.Ca+40>>2,R.Ca);Atomics.store(z(),R.Ca+44>>2,42);R.bb();Va(R.Ca,!1,1);Ya(R.Ca)},yb:function(){R.bb();na(A);R.receiveObjectTransfer=R.Db;R.setThreadStatus=R.Eb;R.threadCancel=R.Ob;R.threadExit=
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+c);var q=g(r),v=S(4+q+b);z()[v>>2]=q>>h;f(r,v+4,q+b);null!==n&&n.push(T,v);return v},argPackAdvance:8,readValueFromPointer:jb,Ha:function(n){T(n)}})},z:function(a,b,c,d,f,g){hb[a]={name:X(b),Bb:Db(c,d),Cb:Db(f,g),ab:[]}},k:function(a,b,c,d,f,g,l,h,n,r){hb[a].ab.push({nb:X(b),sb:c,qb:Db(d,f),rb:g,Lb:l,Kb:Db(h,n),Mb:r})},O:function(a,b){b=X(b);W(a,{Xb:!0,name:b,argPackAdvance:0,fromWireType:function(){},toWireType:function(){}})},I:function(a,b){if(a==b)postMessage({cmd:"processQueuedMainThreadWork"});
+else if(D)postMessage({targetThread:a,cmd:"processThreadQueue"});else{a=(a=R.Ga[a])&&a.worker;if(!a)return;a.postMessage({cmd:"processThreadQueue"})}return 1},r:ub,L:function(a){if(0===a)return vb(Kb());var b=Jb[a];a=void 0===b?X(a):b;return vb(Kb()[a])},S:function(a){4<a&&(Z[a].Wa+=1)},F:function(a,b,c,d){a||Y("Cannot use deleted val. handle = "+a);a=Z[a].value;var f=Mb[b];if(!f){f="";for(var g=0;g<b;++g)f+=(0!==g?", ":"")+"arg"+g;var l="return function emval_allocator_"+b+"(constructor, argTypes, args) {\n";
+for(g=0;g<b;++g)l+="var argType"+g+" = requireRegisteredType(Module['HEAP32'][(argTypes >>> 2) + "+g+'], "parameter '+g+'");\nvar arg'+g+" = argType"+g+".readValueFromPointer(args);\nargs += argType"+g+"['argPackAdvance'];\n";f=(new Function("requireRegisteredType","Module","__emval_register",l+("var obj = new constructor("+f+");\nreturn __emval_register(obj);\n}\n")))(Lb,A,vb);Mb[b]=f}return f(a,c,d)},s:function(){J()},l:function(a,b,c){Tb.length=0;var d;for(c>>=2;d=u()[b++];)(d=105>d)&&c&1&&c++,
+Tb.push(d?la()[c++>>1]:y()[c]),++c;return Qa[a].apply(null,Tb)},J:function(){},q:function(){},e:Nb,f:Wa,b:db,n:function(){return Ua|0},m:function(){return Ta|0},C:function(a,b,c){u().copyWithin(a,b,b+c)},T:function(){return navigator.hardwareConcurrency},E:function(a,b,c){Sb.length=b;c>>=3;for(var d=0;d<b;d++)Sb[d]=la()[c+d];return(0>a?Qa[-a-1]:nc[a]).apply(null,Sb)},j:function(a){a>>>=0;var b=u().length;if(a<=b||2147483648<a)return!1;for(var c=1;4>=c;c*=2){var d=b*(1+.2/c);d=Math.min(d,a+100663296);
+d=Math.max(16777216,a,d);0<d%65536&&(d+=65536-d%65536);a:{try{k.grow(Math.min(2147483648,d)-m.byteLength+65535>>>16);p(k.buffer);var f=1;break a}catch(g){}f=void 0}if(f)return!0}return!1},G:function(a,b,c){return Vb(a)?Wb(a,b,c):Yb(a,b,c)},d:function(){},H:function(a,b){var c={};b>>=2;c.alpha=!!y()[b];c.depth=!!y()[b+1];c.stencil=!!y()[b+2];c.antialias=!!y()[b+3];c.premultipliedAlpha=!!y()[b+4];c.preserveDrawingBuffer=!!y()[b+5];var d=y()[b+6];c.powerPreference=dc[d];c.failIfMajorPerformanceCaveat=
+!!y()[b+7];c.zb=y()[b+8];c.Zb=y()[b+9];c.$a=y()[b+10];c.mb=y()[b+11];c.bc=y()[b+12];c.cc=y()[b+13];a=Vb(a);!a||c.mb?c=0:(a=a.getContext("webgl",c))?(b=S(8),y()[b+4>>2]=Q|0,d={Wb:b,attributes:c,version:c.zb,Pa:a},a.canvas&&(a.canvas.Qa=d),("undefined"===typeof c.$a||c.$a)&&bc(d),c=b):c=0;return c},K:fc,A:gc,t:hc,B:function(){R.xb()},a:k||A.wasmMemory,D:eb,w:function(a,b,c,d){if("undefined"===typeof SharedArrayBuffer)return H("Current environment does not support SharedArrayBuffer, pthreads are not available!"),
+6;if(!a)return H("pthread_create called with a null thread pointer!"),28;var f=[];if(D&&0===f.length)return pc(687865856,a,b,c,d);var g=0,l=0,h=0,n=0;if(b){var r=y()[b>>2];r+=81920;g=y()[b+8>>2];l=0!==y()[b+12>>2];if(0===y()[b+16>>2]){var q=y()[b+20>>2],v=y()[b+24>>2];h=b+20;n=b+24;var x=R.Ua?R.Ua:Q|0;if(h||n)if(x)if(y()[x+12>>2]!==x)H("pthread_getschedparam attempted on thread "+x+", which does not point to a valid thread, or does not exist anymore!");else{var E=Atomics.load(z(),x+108+20>>2);x=Atomics.load(z(),
+x+108+24>>2);h&&(y()[h>>2]=E);n&&(y()[n>>2]=x)}else H("pthread_getschedparam called with a null thread pointer!");h=y()[b+20>>2];n=y()[b+24>>2];y()[b+20>>2]=q;y()[b+24>>2]=v}else h=y()[b+20>>2],n=y()[b+24>>2]}else r=2097152;(b=0==g)?g=qc(16,r):(g-=r,va(0<g));q=S(232);for(v=0;58>v;++v)z()[(q>>2)+v]=0;y()[a>>2]=q;y()[q+12>>2]=q;a=q+156;y()[a>>2]=a;c={Ja:g,La:r,Ta:b,hb:h,ib:n,Za:l,Nb:c,Ka:q,Ab:Q|0,Ma:d,Qb:f};D?(c.Tb="spawnThread",postMessage(c,f)):bb(c);return 0},R:function(a,b){return kc(a,b)},c:jc,
+o:function(){}};
+(function(){function a(f,g){A.asm=f.exports;L=A.asm.V;ta=g;if(!D){var l=R.Ea.length;R.Ea.forEach(function(h){R.cb(h,function(){if(!--l&&(N--,A.monitorRunDependencies&&A.monitorRunDependencies(N),0==N&&(null!==La&&(clearInterval(La),La=null),O))){var n=O;O=null;n()}})})}}function b(f){a(f.instance,f.module)}function c(f){return Oa().then(function(g){return WebAssembly.instantiate(g,d)}).then(f,function(g){H("failed to asynchronously prepare wasm: "+g);J(g)})}var d={a:rc};D||(va(!D,"addRunDependency cannot be used in a pthread worker"),
+N++,A.monitorRunDependencies&&A.monitorRunDependencies(N));if(A.instantiateWasm)try{return A.instantiateWasm(d,a)}catch(f){return H("Module.instantiateWasm callback failed with error: "+f),!1}(function(){return I||"function"!==typeof WebAssembly.instantiateStreaming||Ma()||"function"!==typeof fetch?c(b):fetch(P,{credentials:"same-origin"}).then(function(f){return WebAssembly.instantiateStreaming(f,d).then(b,function(g){H("wasm streaming compile failed: "+g);H("falling back to ArrayBuffer instantiation");
+return c(b)})})})().catch(oa);return{}})();var oc=A.___wasm_call_ctors=function(){return(oc=A.___wasm_call_ctors=A.asm.W).apply(null,arguments)},S=A._malloc=function(){return(S=A._malloc=A.asm.X).apply(null,arguments)},T=A._free=function(){return(T=A._free=A.asm.Y).apply(null,arguments)},Gb=A.___getTypeName=function(){return(Gb=A.___getTypeName=A.asm.Z).apply(null,arguments)};
+A.___embind_register_native_and_builtin_types=function(){return(A.___embind_register_native_and_builtin_types=A.asm._).apply(null,arguments)};var ic=A._emscripten_get_global_libc=function(){return(ic=A._emscripten_get_global_libc=A.asm.$).apply(null,arguments)};A.___em_js__initPthreadsJS=function(){return(A.___em_js__initPthreadsJS=A.asm.aa).apply(null,arguments)};
+var Pb=A.stackSave=function(){return(Pb=A.stackSave=A.asm.ba).apply(null,arguments)},cb=A.stackRestore=function(){return(cb=A.stackRestore=A.asm.ca).apply(null,arguments)},Qb=A.stackAlloc=function(){return(Qb=A.stackAlloc=A.asm.da).apply(null,arguments)},qc=A._memalign=function(){return(qc=A._memalign=A.asm.ea).apply(null,arguments)};A._emscripten_main_browser_thread_id=function(){return(A._emscripten_main_browser_thread_id=A.asm.fa).apply(null,arguments)};
+var $a=A.___pthread_tsd_run_dtors=function(){return($a=A.___pthread_tsd_run_dtors=A.asm.ga).apply(null,arguments)},ab=A._emscripten_main_thread_process_queued_calls=function(){return(ab=A._emscripten_main_thread_process_queued_calls=A.asm.ha).apply(null,arguments)};A._emscripten_current_thread_process_queued_calls=function(){return(A._emscripten_current_thread_process_queued_calls=A.asm.ia).apply(null,arguments)};
+var Ya=A._emscripten_register_main_browser_thread_id=function(){return(Ya=A._emscripten_register_main_browser_thread_id=A.asm.ja).apply(null,arguments)},Pa=A._do_emscripten_dispatch_to_thread=function(){return(Pa=A._do_emscripten_dispatch_to_thread=A.asm.ka).apply(null,arguments)};A._emscripten_async_run_in_main_thread=function(){return(A._emscripten_async_run_in_main_thread=A.asm.la).apply(null,arguments)};
+A._emscripten_sync_run_in_main_thread=function(){return(A._emscripten_sync_run_in_main_thread=A.asm.ma).apply(null,arguments)};A._emscripten_sync_run_in_main_thread_0=function(){return(A._emscripten_sync_run_in_main_thread_0=A.asm.na).apply(null,arguments)};A._emscripten_sync_run_in_main_thread_1=function(){return(A._emscripten_sync_run_in_main_thread_1=A.asm.oa).apply(null,arguments)};
+A._emscripten_sync_run_in_main_thread_2=function(){return(A._emscripten_sync_run_in_main_thread_2=A.asm.pa).apply(null,arguments)};A._emscripten_sync_run_in_main_thread_xprintf_varargs=function(){return(A._emscripten_sync_run_in_main_thread_xprintf_varargs=A.asm.qa).apply(null,arguments)};A._emscripten_sync_run_in_main_thread_3=function(){return(A._emscripten_sync_run_in_main_thread_3=A.asm.ra).apply(null,arguments)};
+var pc=A._emscripten_sync_run_in_main_thread_4=function(){return(pc=A._emscripten_sync_run_in_main_thread_4=A.asm.sa).apply(null,arguments)};A._emscripten_sync_run_in_main_thread_5=function(){return(A._emscripten_sync_run_in_main_thread_5=A.asm.ta).apply(null,arguments)};A._emscripten_sync_run_in_main_thread_6=function(){return(A._emscripten_sync_run_in_main_thread_6=A.asm.ua).apply(null,arguments)};
+A._emscripten_sync_run_in_main_thread_7=function(){return(A._emscripten_sync_run_in_main_thread_7=A.asm.va).apply(null,arguments)};var Rb=A._emscripten_run_in_main_runtime_thread_js=function(){return(Rb=A._emscripten_run_in_main_runtime_thread_js=A.asm.wa).apply(null,arguments)},Xb=A.__emscripten_call_on_thread=function(){return(Xb=A.__emscripten_call_on_thread=A.asm.xa).apply(null,arguments)};A._emscripten_tls_init=function(){return(A._emscripten_tls_init=A.asm.ya).apply(null,arguments)};
+A.dynCall_jiii=function(){return(A.dynCall_jiii=A.asm.za).apply(null,arguments)};A.dynCall_jiiiiii=function(){return(A.dynCall_jiiiiii=A.asm.Aa).apply(null,arguments)};A.dynCall_jiji=function(){return(A.dynCall_jiji=A.asm.Ba).apply(null,arguments)};var Za=A._main_thread_futex=140556;A.PThread=R;A.PThread=R;A._pthread_self=jc;A.wasmMemory=k;A.ExitStatus=sc;var tc;function sc(a){this.name="ExitStatus";this.message="Program terminated with exit("+a+")";this.status=a}O=function uc(){tc||vc();tc||(O=uc)};
+function vc(){function a(){if(!tc&&(tc=!0,A.calledRun=!0,!ua)){Ra(Ha);D||Ra(Ia);na(A);if(A.onRuntimeInitialized)A.onRuntimeInitialized();if(!D){if(A.postRun)for("function"==typeof A.postRun&&(A.postRun=[A.postRun]);A.postRun.length;){var b=A.postRun.shift();Ja.unshift(b)}Ra(Ja)}}}if(!(0<N)){if(!D){if(A.preRun)for("function"==typeof A.preRun&&(A.preRun=[A.preRun]);A.preRun.length;)Ka();Ra(Ga)}0<N||(A.setStatus?(A.setStatus("Running..."),setTimeout(function(){setTimeout(function(){A.setStatus("")},
+1);a()},1)):a())}}A.run=vc;if(A.preInit)for("function"==typeof A.preInit&&(A.preInit=[A.preInit]);0<A.preInit.length;)A.preInit.pop()();D||(noExitRuntime=!0);D?R.yb():vc();
+
+
+  return wp2_enc_mt_simd.ready
+}
+);
+})();
+export default wp2_enc_mt_simd;
\ No newline at end of file
diff --git a/codecs/wp2/enc/wp2_enc_mt_simd.wasm b/codecs/wp2/enc/wp2_enc_mt_simd.wasm
new file mode 100644
index 00000000..42bbcbf0
Binary files /dev/null and b/codecs/wp2/enc/wp2_enc_mt_simd.wasm differ