56 lines
1.8 KiB
Bash
Executable File
56 lines
1.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Build libopus (static) + opus_fec_wrapper.c → ../../src/wasm-libopus-fec/libopus-fec.js (SINGLE_FILE ES6).
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set -euo pipefail
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ROOT="$(cd "$(dirname "$0")" && pwd)"
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REPO_ROOT="$(cd "$ROOT/../.." && pwd)"
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OPUS_VERSION="1.4"
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OPUS_ARCHIVE="opus-${OPUS_VERSION}.tar.gz"
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BUILD_DIR="$ROOT/build"
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OUT_DIR="$REPO_ROOT/src/wasm-libopus-fec"
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OUT_JS="$OUT_DIR/libopus-fec.js"
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EMS_ENV="$REPO_ROOT/.emsdk/emsdk_env.sh"
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if [[ ! -f "$EMS_ENV" ]]; then
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echo "Missing emsdk. Clone and install once:"
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echo " git clone https://github.com/emscripten-core/emsdk.git $REPO_ROOT/.emsdk"
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echo " cd $REPO_ROOT/.emsdk && ./emsdk install 3.1.74 && ./emsdk activate 3.1.74"
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exit 1
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fi
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# shellcheck source=/dev/null
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source "$EMS_ENV"
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mkdir -p "$BUILD_DIR" "$OUT_DIR"
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cd "$BUILD_DIR"
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if [[ ! -d "opus-${OPUS_VERSION}" ]]; then
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curl -fsSL -o "$OPUS_ARCHIVE" "https://downloads.xiph.org/releases/opus/$OPUS_ARCHIVE"
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tar xzf "$OPUS_ARCHIVE"
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fi
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cd "opus-${OPUS_VERSION}"
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if [[ ! -f Makefile ]]; then
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# Cross-compile for WASM (config.sub accepts wasm32-* OS like "none", not "emscripten").
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emconfigure ./configure \
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--host=wasm32-unknown-none \
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--disable-shared \
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--enable-static \
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--disable-doc \
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--disable-extra-programs \
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--disable-intrinsics
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fi
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emmake make -j"$(nproc 2>/dev/null || echo 4)"
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emcc -O3 \
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"$ROOT/opus_fec_wrapper.c" \
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"$BUILD_DIR/opus-${OPUS_VERSION}/.libs/libopus.a" \
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-I"$BUILD_DIR/opus-${OPUS_VERSION}/include" \
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-o "$OUT_JS" \
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-sMODULARIZE=1 \
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-sEXPORT_ES6=1 \
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-sEXPORT_NAME=createLibopusFecModule \
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-sALLOW_MEMORY_GROWTH=1 \
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-sENVIRONMENT=web,worker \
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-sSINGLE_FILE=1 \
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-sEXPORTED_FUNCTIONS=_malloc,_free,_gcall_opus_decoder_create,_gcall_opus_decode_float,_gcall_opus_decoder_destroy \
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-sEXPORTED_RUNTIME_METHODS=ccall,cwrap,HEAPF32,HEAPU8
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echo "Built $OUT_JS ($(wc -c < "$OUT_JS") bytes)"
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