@wasm-audio-decoders/common - npm Package Compare versions

Comparing version 8.0.0 to 9.0.0

package.json

 {
   "name": "@wasm-audio-decoders/common",
-  "version": "8.0.0",
+  "version": "9.0.0",
   "description": "Web Assembly Audio Decoders Common",
@@ -5,0 +5,0 @@ "module": "index.js",

src/WASMAudioDecoderCommon.js

@@ -103,12 +103,31 @@ export default function WASMAudioDecoderCommon() {
 
+      crc32Table: {
+        value: (() => {
+          let crc32Table = new Int32Array(256),
+            i,
+            j,
+            c;
+
+          for (i = 0; i < 256; i++) {
+            for (c = i << 24, j = 8; j > 0; --j)
+              c = c & 0x80000000 ? (c << 1) ^ 0x04c11db7 : c << 1;
+            crc32Table[i] = c;
+          }
+          return crc32Table;
+        })(),
+      },
+
       decodeDynString: {
         value(source) {
-          const output = new uint8Array(source.length);
-          const offset = parseInt(source.substring(11, 13), 16);
-          const offsetReverse = 256 - offset;
+          let output = new uint8Array(source.length);
+          let offset = parseInt(source.substring(11, 13), 16);
+          let offsetReverse = 256 - offset;
 
-          let escaped = false,
+          let crcIdx,
+            escaped = false,
             byteIndex = 0,
             byte,
-            i = 13;
+            i = 21,
+            expectedCrc,
+            resultCrc = 0xffffffff;
 
@@ -128,6 +147,21 @@ while (i < source.length) {
 
-            output[byteIndex++] =
+            output[byteIndex] =
               byte < offset && byte > 0 ? byte + offsetReverse : byte - offset;
+
+            resultCrc =
+              (resultCrc << 8) ^
+              WASMAudioDecoderCommon.crc32Table[
+                ((resultCrc >> 24) ^ output[byteIndex++]) & 255
+              ];
           }
 
+          // expected crc
+          for (crcIdx = 0; crcIdx <= 8; crcIdx += 2)
+            expectedCrc |=
+              parseInt(source.substring(13 + crcIdx, 15 + crcIdx), 16) <<
+              (crcIdx * 4);
+
+          if (expectedCrc !== resultCrc)
+            throw new Error("WASM string decode failed crc32 validation");
+
           return output.subarray(0, byteIndex);
@@ -143,3 +177,3 @@ },
             // prettier-ignore
-            const puffString = String.raw`dynEncode0014u‡*t“““t“““““t““““$#“U¤¤“U¤¤3yƒ†„‰zzss|yu„svu‡yÚ&ˆ“4<054<,5T44^T44<(6U~J(44< ~A544U~6J0444ˆ†545 444J0444‰J,4U“4ˆU“‡…Ò“7U45“4U4Z“4U4U^/6545T4T44BUˆ~64CU~O4U54U~5 U5T4B4Z!4U~5U5U5T4U~6U4ZTU5U5T44~4O4U2ZTU5T44Z!4B6T44Uˆ~64B6U~O44Uˆ~4O4U~54U~5 44~C4~54U~5 44~5454Uˆ4B6Ub!444~UO4U~5 “U5“4U4ZTUŠ#44U$4†64<4~B6^“4<444~Uˆ~B4U~54Uˆ544~544~Uˆ5 µ“Uä#UJUè#5TT4U0ZTTUX5U5T4T4Uà#~4OU4U $~Cˆ4~54U~5 T44$6U\!TTT4UaT4<6T4<64<Z!44~4N4<U~5 4U”Z!4U±_TUŠ#44U•Uˆ6UÔ~B$544$6U\!4Uˆ6U¤#~B44Uä#~B$~64<6_TU‰#444U”~B~6~54<Y!44<_!T4Y!4<64~444~AN44<U~6J4U5 44J4U”[!U#44UŠO4U~54U~5 U54 “7U6844J44J 4UJ4UJ04VK(44<J44<J$4U´~54U~5 4U¤~5!TTT4U$5"U“5TTTTTTT4U$"4VK,U54<(6U~64<$6_!4< 64~6A54A544U~6#J(U’54A4U‡[!44J(44#~A4Uˆ6U“‡UŠU…[!44†64~64_!4<64~54<6T4<4]TU5 T4Y!44~44~AN4U~54U~54U5 44J(44J UÄA!U5U”#UôJU"UÔJUœ#UÔ"JU˜#U´"JT4U´ZTU5T4UôZTU5T4UDZTU5T4U$[T44~UO4U~5 UÔUô4U~U´$.U5T4UP[T4U~4~UO4U~5 U˜#<Uœ#<4U~U2$.UÄUN 44 ~UO4U~5 44!~UO4U~5 4U~4~UO4U~5 44J44J(U5 44U¤~J@44Uä~J<44UD~J844U~J44U$54U$5U‘54U$54U1^4U1^†!4U•~54U~5U”54U~6U4U^/65T4T4U$54U~4BUˆ~4O4U54U~5 UU'464U'_/54UˆU”~5T4T4U~4BUˆ~UO4U54U~5 U54Uä~4U¤~4U~U'$!44~5U5T44\T44U<~$6U\!4U#aT4U~4Uˆ~4O4U~5 U5U5U5TTT4U$"4YTU5 4Uˆ4~C5U5 U5U5444$4~64~\TUŽ5 4U~4Uˆ~5T4Y!44O4U~54U~54U5 4CYTU‹5 4Uä~4U¤~4U~4$6TU54U\!44Bæ4Bä~[!4U~4UD~4U~4Uˆ~4$6TUŒ54U\!44B†4B„~[!44U<~4U4~$5 4U"U˜#$544"†Y!454U^!44<J44<(J454U~84­U”N!#%'+/37?GOWgw‡—·×÷Uä;U”9$%& !"#`;
+            const puffString = String.raw`dynEncode0114db91da9bu‡*t“““t“““““t““““$#“U¤¤“U¤¤3yƒ†„‰zzss|yu„svu‡yÚ&ˆ“4<054<,5T44^T44<(6U~J(44< ~A544U~6J0444ˆ†545 444J0444‰J,4U“4ˆU“‡…Ò“7U45“4U4Z“4U4U^/6545T4T44BUˆ~64CU~O4U54U~5 U5T4B4Z!4U~5U5U5T4U~6U4ZTU5U5T44~4O4U2ZTU5T44Z!4B6T44Uˆ~64B6U~O44Uˆ~4O4U~54U~5 44~C4~54U~5 44~5454Uˆ4B6Ub!444~UO4U~5 “U5“4U4ZTUŠ#44U$4†64<4~B6^“4<444~Uˆ~B4U~54Uˆ544~544~Uˆ5 µ“Uä#UJUè#5TT4U0ZTTUX5U5T4T4Uà#~4OU4U $~Cˆ4~54U~5 T44$6U\!TTT4UaT4<6T4<64<Z!44~4N4<U~5 4U”Z!4U±_TUŠ#44U•Uˆ6UÔ~B$544$6U\!4Uˆ6U¤#~B44Uä#~B$~64<6_TU‰#444U”~B~6~54<Y!44<_!T4Y!4<64~444~AN44<U~6J4U5 44J4U”[!U#44UŠO4U~54U~5 U54 “7U6844J44J 4UJ4UJ04VK(44<J44<J$4U´~54U~5 4U¤~5!TTT4U$5"U“5TTTTTTT4U$"4VK,U54<(6U~64<$6_!4< 64~6A54A544U~6#J(U’54A4U‡[!44J(44#~A4Uˆ6U“‡UŠU…[!44†64~64_!4<64~54<6T4<4]TU5 T4Y!44~44~AN4U~54U~54U5 44J(44J UÄA!U5U”#UôJU"UÔJUœ#UÔ"JU˜#U´"JT4U´ZTU5T4UôZTU5T4UDZTU5T4U$[T44~UO4U~5 UÔUô4U~U´$.U5T4UP[T4U~4~UO4U~5 U˜#<Uœ#<4U~U2$.UÄUN 44 ~UO4U~5 44!~UO4U~5 4U~4~UO4U~5 44J44J(U5 44U¤~J@44Uä~J<44UD~J844U~J44U$54U$5U‘54U$54U1^4U1^†!4U•~54U~5U”54U~6U4U^/65T4T4U$54U~4BUˆ~4O4U54U~5 UU'464U'_/54UˆU”~5T4T4U~4BUˆ~UO4U54U~5 U54Uä~4U¤~4U~U'$!44~5U5T44\T44U<~$6U\!4U#aT4U~4Uˆ~4O4U~5 U5U5U5TTT4U$"4YTU5 4Uˆ4~C5U5 U5U5444$4~64~\TUŽ5 4U~4Uˆ~5T4Y!44O4U~54U~54U5 4CYTU‹5 4Uä~4U¤~4U~4$6TU54U\!44Bæ4Bä~[!4U~4UD~4U~4Uˆ~4$6TUŒ54U\!44B†4B„~[!44U<~4U4~$5 4U"U˜#$544"†Y!454U^!44<J44<(J454U~84­U”N!#%'+/37?GOWgw‡—·×÷Uä;U”9$%& !"#`;
 
@@ -146,0 +180,0 @@ WASMAudioDecoderCommon.getModule(WASMAudioDecoderCommon, puffString)

src/WASMAudioDecoderWorker.js

@@ -13,74 +13,74 @@ import NodeWorker from "@eshaz/web-worker";
     if (!source) {
-      const webworkerSourceCode =
-        "'use strict';" +
-        // dependencies need to be manually resolved when stringifying this function
-        `(${((_Decoder, _WASMAudioDecoderCommon, _EmscriptenWASM) => {
-          // We're in a Web Worker
+      let type = "text/javascript",
+        isNode,
+        webworkerSourceCode =
+          "'use strict';" +
+          // dependencies need to be manually resolved when stringifying this function
+          `(${((_Decoder, _WASMAudioDecoderCommon, _EmscriptenWASM) => {
+            // We're in a Web Worker
 
-          // setup Promise that will be resolved once the WebAssembly Module is received
-          let decoder,
-            moduleResolve,
-            modulePromise = new Promise((resolve) => {
-              moduleResolve = resolve;
-            });
+            // setup Promise that will be resolved once the WebAssembly Module is received
+            let decoder,
+              moduleResolve,
+              modulePromise = new Promise((resolve) => {
+                moduleResolve = resolve;
+              });
 
-          self.onmessage = ({ data: { id, command, data } }) => {
-            let messagePromise = modulePromise,
-              messagePayload = { id },
-              transferList;
+            self.onmessage = ({ data: { id, command, data } }) => {
+              let messagePromise = modulePromise,
+                messagePayload = { id },
+                transferList;
 
-            if (command === "init") {
-              Object.defineProperties(_Decoder, {
-                WASMAudioDecoderCommon: { value: _WASMAudioDecoderCommon },
-                EmscriptenWASM: { value: _EmscriptenWASM },
-                module: { value: data.module },
-                isWebWorker: { value: true },
-              });
+              if (command === "init") {
+                Object.defineProperties(_Decoder, {
+                  WASMAudioDecoderCommon: { value: _WASMAudioDecoderCommon },
+                  EmscriptenWASM: { value: _EmscriptenWASM },
+                  module: { value: data.module },
+                  isWebWorker: { value: true },
+                });
 
-              decoder = new _Decoder(data.options);
-              moduleResolve();
-            } else if (command === "free") {
-              decoder.free();
-            } else if (command === "ready") {
-              messagePromise = messagePromise.then(() => decoder.ready);
-            } else if (command === "reset") {
-              messagePromise = messagePromise.then(() => decoder.reset());
-            } else {
-              // "decode":
-              // "decodeFrame":
-              // "decodeFrames":
-              Object.assign(
-                messagePayload,
-                decoder[command](
-                  // detach buffers
-                  Array.isArray(data)
-                    ? data.map((data) => new Uint8Array(data))
-                    : new Uint8Array(data)
-                )
+                decoder = new _Decoder(data.options);
+                moduleResolve();
+              } else if (command === "free") {
+                decoder.free();
+              } else if (command === "ready") {
+                messagePromise = messagePromise.then(() => decoder.ready);
+              } else if (command === "reset") {
+                messagePromise = messagePromise.then(() => decoder.reset());
+              } else {
+                // "decode":
+                // "decodeFrame":
+                // "decodeFrames":
+                Object.assign(
+                  messagePayload,
+                  decoder[command](
+                    // detach buffers
+                    Array.isArray(data)
+                      ? data.map((data) => new Uint8Array(data))
+                      : new Uint8Array(data)
+                  )
+                );
+                // The "transferList" parameter transfers ownership of channel data to main thread,
+                // which avoids copying memory.
+                transferList = messagePayload.channelData
+                  ? messagePayload.channelData.map((channel) => channel.buffer)
+                  : [];
+              }
+
+              messagePromise.then(() =>
+                self.postMessage(messagePayload, transferList)
               );
-              // The "transferList" parameter transfers ownership of channel data to main thread,
-              // which avoids copying memory.
-              transferList = messagePayload.channelData
-                ? messagePayload.channelData.map((channel) => channel.buffer)
-                : [];
-            }
+            };
+          }).toString()})(${Decoder}, ${WASMAudioDecoderCommon}, ${EmscriptenWASM})`;
 
-            messagePromise.then(() =>
-              self.postMessage(messagePayload, transferList)
-            );
-          };
-        }).toString()})(${Decoder}, ${WASMAudioDecoderCommon}, ${EmscriptenWASM})`;
+      try {
+        isNode = typeof process.versions.node !== "undefined";
+      } catch {}
 
-      const type = "text/javascript";
+      source = isNode
+        ? `data:${type};base64,${Buffer.from(webworkerSourceCode).toString(
+            "base64"
+          )}`
+        : URL.createObjectURL(new Blob([webworkerSourceCode], { type }));
 
-      try {
-        // browser
-        source = URL.createObjectURL(new Blob([webworkerSourceCode], { type }));
-      } catch {
-        // nodejs
-        source = `data:${type};base64,${Buffer.from(
-          webworkerSourceCode
-        ).toString("base64")}`;
-      }
-
       WASMAudioDecoderCommon.modules.set(Decoder, source);
@@ -87,0 +87,0 @@ }

No alert changes

Improved metrics

Total package byte prevSize

60332

increased by1.91%

Lines of code

403

increased by7.75%

No dependency changes