hacks to produce libffmpegsumo.so

README.org

building ffmpegsumo is a PITA, you need to fight with chromium’s build system, but so far this seems to work:

GYP_DEFINES=”proprietary_codecs=1 target_arch=x64 branding=Chrome” ./build/gyp_chromium build/all.gyp

–> use the hacks to produce the ffmpegsumo and ffmpeg_yasm ninja files <–

./depot_tools/ninja -v -j4 -C out/Release ffmpegsumo

make-magic.sh

rm cfilez
rm afilez
for i in `find build.x64.linux/Chromium -name '*.o' | sed s/Chromium/' '/ | cut -d' ' -f2`; do
        d=`dirname $i`;
        f=`basename $i | sed s/'\.o$'// | egrep -oe '[^ ]+$'`;
        [ -f ./${d}/${f}.c ]   && echo "${d} ${f}" >> cfilez
        [ -f ./${d}/${f}.asm ] && echo "${d} ${f}" >> afilez
done

sh make-sumo.sh > ffmpegsumo.ninja
sh make-yasm.sh > ffmpeg_yasm.ninja

make-sumo.sh

#!/bin/sh
cat<<EOF
defines = -DV8_DEPRECATION_WARNINGS -D_FILE_OFFSET_BITS=64 -DCHROMIUM_BUILD $
    -DUSE_CAIRO=1 -DUSE_GLIB=1 -DUSE_DEFAULT_RENDER_THEME=1 $
    -DUSE_LIBJPEG_TURBO=1 -DUSE_NSS=1 -DUSE_X11=1 -DENABLE_ONE_CLICK_SIGNIN $
    -DGTK_DISABLE_SINGLE_INCLUDES=1 -DUSE_XI2_MT=2 -DENABLE_REMOTING=1 $
    -DENABLE_WEBRTC=1 -DENABLE_PEPPER_CDMS -DENABLE_CONFIGURATION_POLICY $
    -DENABLE_INPUT_SPEECH -DENABLE_NOTIFICATIONS -DUSE_UDEV $
    -DENABLE_EGLIMAGE=1 -DENABLE_TASK_MANAGER=1 -DENABLE_EXTENSIONS=1 $
    -DENABLE_PLUGIN_INSTALLATION=1 -DENABLE_PLUGINS=1 $
    -DENABLE_SESSION_SERVICE=1 -DENABLE_THEMES=1 -DENABLE_BACKGROUND=1 $
    -DENABLE_AUTOMATION=1 -DENABLE_GOOGLE_NOW=1 -DCLD_VERSION=2 $
    -DENABLE_FULL_PRINTING=1 -DENABLE_PRINTING=1 -DENABLE_SPELLCHECK=1 $
    -DENABLE_CAPTIVE_PORTAL_DETECTION=1 -DENABLE_MANAGED_USERS=1 $
    -DENABLE_MDNS=1 -DHAVE_AV_CONFIG_H -D_POSIX_C_SOURCE=200112 $
    -D_XOPEN_SOURCE=600 -DPIC -D_ISOC99_SOURCE -D_LARGEFILE_SOURCE -DNDEBUG $
    -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0
includes = -I../../third_party/ffmpeg/chromium/config/Chromium/linux/x64 $
    -I../../third_party/ffmpeg
cflags = -fstack-protector --param=ssp-buffer-size=4 -pthread $
    -fno-exceptions -fno-strict-aliasing -Wno-unused-parameter $
    -Wno-missing-field-initializers -pipe -fPIC -Wno-unused-local-typedefs $
    -fPIC -fomit-frame-pointer -w -std=c99 -pthread -fno-math-errno $
    -fno-signed-zeros -fno-tree-vectorize -fomit-frame-pointer $
    -Wno-deprecated-declarations -Wno-format -fuse-ld=gold $
    -Wno-unused-result -O2 -fno-ident -fdata-sections -ffunction-sections $
    -funwind-tables
cflags_c = 
cflags_cc = -fno-rtti -fno-threadsafe-statics -fvisibility-inlines-hidden $
    -Wno-deprecated

EOF

cat cfilez | while read d f; do
        cat <<EOF
build obj/third_party/ffmpeg${d}/ffmpegsumo.${f}.o: cc $
    ../../third_party/ffmpeg${d}/${f}.c || $
    obj/third_party/ffmpeg/ffmpeg_yasm.actions_rules_copies.stamp
EOF
done

cat<<EOF
ldflags = -Wl,-z,now -Wl,-z,relro -fuse-ld=gold -pthread -Wl,-z,noexecstack $
    -fPIC $
    -B/media/xaiki/7e67bbed-44fb-4f14-a59e-1a9cc2b6a7ca/build-area/chromium-browser-34.0.1847.116/src/third_party/gold $
    -Wl,-Bsymbolic -Lgen/third_party/ffmpeg -Wl,--icf=none -Wl,-O1 $
    -Wl,--as-needed -Wl,--gc-sections
libs =  -lz
build libffmpegsumo.so libffmpegsumo.so.TOC: solink_module $
EOF

cat cfilez | while read d f; do
        cat <<EOF
    obj/third_party/ffmpeg${d}/ffmpegsumo.${f}.o $
EOF
done

cat<<EOF
    obj/third_party/ffmpeg/libffmpeg_yasm.a
  soname = libffmpegsumo.so
  lib = libffmpegsumo.so
EOF

make-yasm.sh

#!/bin/sh

cat<<EOF
rule ffmpeg_yasm_target_assemble_0e7c357cbd4da6a91e9b60305e71c941
  command = cd ../../third_party/ffmpeg; ../../out/Release/yasm -DPIC $
      -DARCH_X86_64 -I chromium/config/Chromium/linux/x64 -I $
      libavcodec/x86/ -I libavutil/x86/ -I . -w -P config.asm -DPIC -felf64 $
      -m amd64 -o "../../out/Release/gen/third_party/ffmpeg/yasm/\${root}.o" $
      "${source}"
  description = RULE Compile assembly \${source}
  restat = 1

EOF

cat afilez | while read d f; do
        u=`md5sum ./${d}/${f}.asm | cut -d' ' -f1`;
        D=`echo $d | sed s/'^\/'//`;
        cat <<EOF
build gen/third_party/ffmpeg/yasm/${f}.o: $
    ffmpeg_yasm_target_assemble_0e7c357cbd4da6a91e9b60305e71c941 $
    ../../third_party/ffmpeg${d}/${f}.asm | yasm || yasm
  source = ${D}/${f}.asm
  root = ${f}
  unique_name = ${u}
EOF
done

cat<<EOF
build obj/third_party/ffmpeg/ffmpeg_yasm.actions_rules_copies.stamp: stamp $
EOF

cat afilez | while read d f; do
cat<<EOF
    gen/third_party/ffmpeg/yasm/${f}.o $
EOF
done

cat<<EOF
defines = -DV8_DEPRECATION_WARNINGS -D_FILE_OFFSET_BITS=64 -DCHROMIUM_BUILD $
    -DUSE_CAIRO=1 -DUSE_GLIB=1 -DUSE_DEFAULT_RENDER_THEME=1 $
    -DUSE_LIBJPEG_TURBO=1 -DUSE_NSS=1 -DUSE_X11=1 -DENABLE_ONE_CLICK_SIGNIN $
    -DGTK_DISABLE_SINGLE_INCLUDES=1 -DUSE_XI2_MT=2 -DENABLE_REMOTING=1 $
    -DENABLE_WEBRTC=1 -DUSE_PROPRIETARY_CODECS -DENABLE_PEPPER_CDMS $
    -DENABLE_CONFIGURATION_POLICY -DENABLE_INPUT_SPEECH $
    -DENABLE_NOTIFICATIONS -DUSE_UDEV -DENABLE_EGLIMAGE=1 $
    -DENABLE_TASK_MANAGER=1 -DENABLE_EXTENSIONS=1 $
    -DENABLE_PLUGIN_INSTALLATION=1 -DENABLE_PLUGINS=1 $
    -DENABLE_SESSION_SERVICE=1 -DENABLE_THEMES=1 -DENABLE_BACKGROUND=1 $
    -DENABLE_AUTOMATION=1 -DENABLE_GOOGLE_NOW=1 -DCLD_VERSION=2 $
    -DENABLE_FULL_PRINTING=1 -DENABLE_PRINTING=1 -DENABLE_SPELLCHECK=1 $
    -DENABLE_CAPTIVE_PORTAL_DETECTION=1 -DENABLE_MANAGED_USERS=1 $
    -DENABLE_MDNS=1 -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0
includes = 
cflags = -fstack-protector --param=ssp-buffer-size=4 -pthread $
    -fno-exceptions -fno-strict-aliasing -Wno-unused-parameter $
    -Wno-missing-field-initializers -fvisibility=hidden -pipe -fPIC $
    -Wno-unused-local-typedefs -Wno-format -fuse-ld=gold -Wno-unused-result $
    -O2 -fno-ident -fdata-sections -ffunction-sections -funwind-tables
cflags_c = 
cflags_cc = -fno-rtti -fno-threadsafe-statics -fvisibility-inlines-hidden $
    -Wno-deprecated

build obj/third_party/ffmpeg/ffmpeg_yasm.xcode_hack.o: cc $
    ../../third_party/ffmpeg/xcode_hack.c || $
    obj/third_party/ffmpeg/ffmpeg_yasm.actions_rules_copies.stamp

build obj/third_party/ffmpeg/libffmpeg_yasm.a: alink_thin $
    obj/third_party/ffmpeg/ffmpeg_yasm.xcode_hack.o $
EOF

cat afilez | while read d f; do
cat<<EOF
    gen/third_party/ffmpeg/yasm/${f}.o $
EOF
             done


cat<<EOF
    gen/third_party/ffmpeg/yasm/lls.o || $
    obj/third_party/ffmpeg/ffmpeg_yasm.actions_rules_copies.stamp
EOF

Why All the hacks? Why not just modify the build_ffmpeg.sh script, run it, then run copy_config.sh then just ninja -C out/Release -j8 ffmpegsumo.

That will build all dependencies of FFmpeg and will give you a libffmpegsumo.so in your out/Release folder.

it didn't work for me, not that nor generate_gyp.py

Hai again :3