Add inspect CLI tool and Emscripten build tools.
Change-Id: Id9159456084582b393c66c1b2c0bbb0a783350b0
diff --git a/tools/build_inspector.sh b/tools/build_inspector.sh
new file mode 100755
index 0000000..a67aa15
--- /dev/null
+++ b/tools/build_inspector.sh
@@ -0,0 +1,16 @@
+if ! [ -x "$(command -v emcc)" ] || ! [ -x "$(command -v emconfigure)" ] || ! [ -x "$(command -v emmake)" ]; then
+ echo 'Emscripten SDK is not available (emcc, emconfigure or emmake is missing). Install it from https://kripken.github.io/emscripten-site/docs/getting_started/downloads.html and try again.' >&2
+ exit 1
+fi
+
+echo 'Building JS Inspector'
+if [ ! -d ".inspect" ]; then
+ mkdir .inspect
+ cd .inspect && emconfigure ../../configure --disable-multithread --disable-runtime-cpu-detect --target=generic-gnu --enable-accounting --enable-inspection --enable-aom_highbitdepth --extra-cflags="-D_POSIX_SOURCE"
+fi
+
+cd .inspect
+emmake make -j 8
+cp examples/inspect inspect.bc
+emcc -O3 inspect.bc -o inspect.js -s TOTAL_MEMORY=134217728 -s MODULARIZE=1 -s EXPORT_NAME="'DecoderModule'" --post-js "../inspect-post.js" --memory-init-file 0
+cp inspect.js ../inspect.js
diff --git a/tools/inspect-cli.js b/tools/inspect-cli.js
new file mode 100644
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+++ b/tools/inspect-cli.js
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+/**
+ * This tool lets you test if the compiled Javascript decoder is functioning properly. You'll
+ * need to download a SpiderMonkey js-shell to run this script.
+ * https://archive.mozilla.org/pub/firefox/nightly/latest-mozilla-central/
+ *
+ * Example:
+ * js-shell inspect-cli.js video.ivf
+ */
+load("inspect.js");
+var buffer = read(scriptArgs[0], "binary");
+var Module = {
+ noExitRuntime: true,
+ noInitialRun: true,
+ preInit: [],
+ preRun: [],
+ postRun: [function () {
+ printErr(`Loaded Javascript Decoder OK`);
+ }],
+ memoryInitializerPrefixURL: "bin/",
+ arguments: ['input.ivf', 'output.raw'],
+ on_frame_decoded_json: function (jsonString) {
+ let json = JSON.parse("[" + Module.UTF8ToString(jsonString) + "null]");
+ json.forEach(frame => {
+ if (frame) {
+ print(frame.frame);
+ }
+ });
+ }
+};
+DecoderModule(Module);
+Module.FS.writeFile("/tmp/input.ivf", buffer, { encoding: "binary" });
+Module._open_file();
+Module._set_layers(0xFFFFFFFF); // Set this to zero if you want to benchmark decoding.
+while(true) {
+ printErr("Decoding Frame ...");
+ if (Module._read_frame()) {
+ break;
+ }
+}
diff --git a/tools/inspect-post.js b/tools/inspect-post.js
new file mode 100644
index 0000000..31c40bb
--- /dev/null
+++ b/tools/inspect-post.js
@@ -0,0 +1 @@
+Module["FS"] = FS;
