libav.js: v6.10.9.0 (https://github.com/Yahweasel/libav.js)
FFmpeg: 9.0 (https://ffmpeg.org/releases/ffmpeg-9.0.tar.xz)
Emscripten: emcc (Emscripten gcc/clang-like replacement + linker emulating GNU ld) 6.0.5 (1db513782be24469589d7cb8a1f1834e9a33f271)
variant: legacy
fragments: ["avformat","avcodec","swresample","swscale","demuxer-avi","demuxer-asf","demuxer-flv","demuxer-mpegps","demuxer-mpegvideo","demuxer-m4v","demuxer-h264","parser-mpegvideo","parser-mpeg4video","parser-h263","parser-h264","parser-mpegaudio","parser-aac","parser-ac3","decoder-mpeg1video","decoder-mpeg2video","decoder-mpeg4","decoder-msmpeg4v1","decoder-msmpeg4v2","decoder-msmpeg4v3","decoder-wmv1","decoder-wmv2","decoder-wmv3","decoder-flv","decoder-h263","decoder-mp1","decoder-mp2","decoder-mp3","decoder-ac3","decoder-wmav1","decoder-wmav2","decoder-adpcm_ms","decoder-adpcm_ima_wav","decoder-pcm_u8","decoder-pcm_s16le"]

FFmpeg configure の引数（libav.js の共通の引数 mk/ffmpeg.mk に、次の部品の引数を足したもの）：
--enable-protocol=data --enable-protocol=file
--enable-swresample --enable-filter=aresample
--enable-swscale --enable-filter=scale
--enable-demuxer=avi
--enable-demuxer=asf
--enable-demuxer=flv
--enable-demuxer=mpegps
--enable-demuxer=mpegvideo
--enable-demuxer=m4v
--enable-demuxer=h264
--enable-parser=mpegvideo
--enable-parser=mpeg4video
--enable-parser=h263
--enable-parser=h264
--enable-parser=mpegaudio
--enable-parser=aac
--enable-parser=ac3
--enable-decoder=mpeg1video
--enable-decoder=mpeg2video
--enable-decoder=mpeg4
--enable-decoder=msmpeg4v1
--enable-decoder=msmpeg4v2
--enable-decoder=msmpeg4v3
--enable-decoder=wmv1
--enable-decoder=wmv2
--enable-decoder=wmv3
--enable-decoder=flv
--enable-decoder=h263
--enable-decoder=mp1
--enable-decoder=mp2
--enable-decoder=mp3
--enable-decoder=ac3
--enable-decoder=wmav1
--enable-decoder=wmav2
--enable-decoder=adpcm_ms
--enable-decoder=adpcm_ima_wav
--enable-decoder=pcm_u8
--enable-decoder=pcm_s16le

sha256:
cfc89c6df58c42e85d479a4abf615de0b056700cec9f26a56e8cf453e708932f  ./libav-6.10.9.0-legacy.wasm.mjs
c76c1977b1e8248bbbf5b16cb8e37c8cdba020df7a8332498b3ce42426ad36a2  ./libav-legacy.mjs
cf82e6963750a34355e0481d603f8a2b7e8a276a624f0f21285635cea341439c  ./libav-6.10.9.0-legacy.wasm.wasm
7b8992959a95b476dddb465fe92aa952800eb46916a546326c10763c04fe2ffe  sources/build.sh
7f607a00dd0d28a729d5a4811205812eef01cf6ef6155025febb6f36a9062d52  sources/ffmpeg-9.0.tar.xz
8153d7b1661c0d835a9e576ef771b01054fe142a4a21c27eb5cf25f46f34dfb9  sources/fragments.json
3b640c356d74724a99230b077ef442d8c995a37c03e0729d6d2a9be0f3a41fd3  sources/libav.js-v6.10.9.0.tar.gz