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Backed out changeset ed10a546db4f (bug 1765480) Backed out changeset 3a362936969a (bug 1765480) Backed out changeset c0efff24b361 (bug 1765480) Backed out changeset e393cf609b9b (bug 1765480) Backed out changeset 2979c28076f7 (bug 1765480) Backed out changeset 37cfee2c325e (bug 1765480) Backed out changeset e3017c8a70af (bug 1765480)
64 lines
3.3 KiB
Plaintext
64 lines
3.3 KiB
Plaintext
This directory contains files used in gecko builds from FFmpeg
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(http://ffmpeg.org). The current files are from FFmpeg as of
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revision n4.2.2-1-g19bfd72126
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git clone https://git.ffmpeg.org/ffmpeg.git ffmpeg
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git checkout n4.2.2-1-g19bfd72126
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All source files match their path from the library's source archive.
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Currently, we only use the vp8, vp9, mp3, and flac portion of the library. If
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this changes, configuration files will most likely need to be updated.
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AVX2 must be disabled on Linux 32 bits due to the use of yasm 1.1 on the build bots.
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Once yasm is upgraded to 1.2 or later, AVX2 code could be re-enabled.
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Add --disable-avx2 to configure on those platforms.
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configuration files were generated as follow using the configure script:
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./configure --disable-all --enable-avcodec --enable-decoder=vp8,vp9,mp3,flac \
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--enable-parser=vp8,vp9 --disable-static --enable-shared \
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--disable-autodetect
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config*:
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replace: /HAVE_(MALLOC_H|ARC4RANDOM|LOCALTIME_R|MEMALIGN|POSIX_MEMALIGN)/d
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# sed -i bak -E '/HAVE_(MALLOC_H|ARC4RANDOM|LOCALTIME_R|MEMALIGN|POSIX_MEMALIGN)/d' config.h
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config_unix32.h:
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add to configure command: --disable-asm --disable-x86asm --cc='clang -m32'
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config_android32.h: Only mp3 and flac are enabled on this platform.
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./configure --disable-all --enable-avcodec --enable-decoder=mp3,flac \
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--disable-static --enable-shared --disable-autodetect \
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--enable-small --target-os=linux --arch=arm --enable-cross-compile \
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--cc=$HOME/.mozbuild/android-ndk-r20/toolchains/llvm/prebuilt/darwin-x86_64/bin/armv7a-linux-androideabi16-clang
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config_unix32.h/config_unix64.h/config_unix64.asm:
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replace: s/HAVE_SYSCTL 1/HAVE_SYSCTL 0
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config_win{32|64}.{h|asm}:
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add to configure command: --toolchain=msvc
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config_aarch64_win64.h: You will need to install cpp (either using msys or wsl)
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./configure --disable-all --enable-avcodec --enable-decoder=vp8,vp9,mp3,flac \
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--enable-parser=vp8,vp9 --disable-static --enable-shared \
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--disable-autodetect --toolchain=msvc --enable-cross-compile \
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--target-os=win32 --arch=arm64
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Regenerate defaults_disabled.{h,asm} with:
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$ grep -E ".*_(INDEV|OUTDEV|DECODER|ENCODER|DEMUXER|MUXER|PARSER|FILTER|HWACCEL|PROTOCOL|ENCODERS|DECODERS|HWACCELS|INDEVS|OUTDEVS|FILTERS|DEMUXERS|MUXERS|PROTOCOLS|BSF) 0" config.h | sort -d -u > ~/Work/Mozilla/mozilla-central/media/ffvpx/defaults_disabled.h
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$ grep -E ".*_(INDEV|OUTDEV|DECODER|ENCODER|DEMUXER|MUXER|PARSER|FILTER|HWACCEL|PROTOCOL|ENCODERS|DECODERS|HWACCELS|INDEVS|OUTDEVS|FILTERS|DEMUXERS|MUXERS|PROTOCOLS|BSF) 0" config.asm | sort -d -u > ~/Work/Mozilla/mozilla-central/media/ffvpx/defaults_disabled.asm
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The GNU comm utility is a useful tool to compare and extract only the changes.
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To update the source tree, perform a diff on the files listed in FILES.
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The diffs should typically apply to the ffvpx tree.
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e.g. something like this would do:
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Run in the ffmpeg original tree:
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$ for i in `cat $PATH_CENTRAL/media/ffvpx/FILES`; do git diff $REV_LASTSYNC HEAD >> patch.diff; done
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Then apply patch.diff on the ffvpx tree.
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You can also directly copy existing files from new ffmpeg checkout by rsync:
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rsync -av --existing ffmpeg-new-dif ffmpeg-mozilla-dir
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Compilation will reveal if any files are missing.
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Apply linux-vaapi-build.patch patch to enable build VA-API support for Linux.
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