зеркало из https://github.com/mozilla/gecko-dev.git
59 строки
3.1 KiB
Plaintext
59 строки
3.1 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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Compilation will reveal if any files are missing.
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