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FFmpeg build
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‎FFmpegBuild/build.sh‎

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#!/bin/sh
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#
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# build-ffmpeg.sh
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# Aural
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#
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# Copyright © 2024 Kartik Venugopal. All rights reserved.
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#
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# This software is licensed under the MIT software license.
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# See the file "LICENSE" in the project root directory for license terms.
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#
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#
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# This script builds XCFrameworks that wrap FFmpeg shared libraries (.dylib) and their
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# corresponding public headers. These frameworks are suitable for use by Aural Player but not for general
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# purpose FFmpeg use.
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#
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# Please see "README.txt" (in the same directory as this script) for detailed instructions and notes
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# related to the use of this script.
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#
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source ./common.sh
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# MARK: Constants -------------------------------------------------------------------------------------
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# Architectures
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export architectures=("x86_64" "arm64")
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# Deployment target for Aural Player.
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export deploymentTarget="11.0"
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# Points to the latest MacOS SDK installed.
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export sdk="/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk"
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export createFatLibs="true"
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# MARK: Functions -------------------------------------------------------------------------------------
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# Determine compiler / linker flags based on architecture.
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function setCompilerAndLinkerFlags {
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arch=$1
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export compiler="/usr/bin/clang"
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# Architecture of the host machine running this build.
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hostArchitecture=$(uname -m)
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if [[ "$arch" != "$hostArchitecture" ]]
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then
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archInFlags="-arch ${arch} "
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export crossCompileOption="--enable-cross-compile"
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export archOption="--arch=${arch}"
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fi
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export extraCompilerFlags="${archInFlags}-mmacosx-version-min=${deploymentTarget} -isysroot ${sdk}"
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export extraLinkerFlags=${extraCompilerFlags}
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}
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function copyHeaders {
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mkdir "headers"
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srcBaseDir="src/arm64"
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headersBaseDir="headers"
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copyHeadersForLib $srcBaseDir $avcodecLibName $headersBaseDir "${avcodecHeaderNames[@]}"
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copyHeadersForLib $srcBaseDir $avformatLibName $headersBaseDir "${avformatHeaderNames[@]}"
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copyHeadersForLib $srcBaseDir $avutilLibName $headersBaseDir "${avutilHeaderNames[@]}"
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copyHeadersForLib $srcBaseDir $swresampleLibName $headersBaseDir "${swresampleHeaderNames[@]}"
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}
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function createXCFrameworkForLib {
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libName=$1
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lib=$2
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xcrun xcodebuild -create-xcframework \
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-library "dylibs/${lib}" -headers "headers/${libName}" \
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-output "xcframeworks/${libName}.xcframework"
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}
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runBuild
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createXCFrameworks
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cleanUp
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echo "\nAll done !\n"

‎FFmpegBuild/common.sh‎

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#!/bin/sh
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# common.sh
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# Aural-macOS
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#
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# Created by Kartik Venugopal on 22/09/22.
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# Copyright © 2024 Kartik Venugopal. All rights reserved.
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# Common variables and functions used across the ffmpeg build scripts.
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# MARK: Constants -------------------------------------------------------------------------------------
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# FFmpeg release version
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export ffmpegVersion="4.4"
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export avcodecLibName="libavcodec"
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export avformatLibName="libavformat"
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export avutilLibName="libavutil"
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export swresampleLibName="libswresample"
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# Library versions
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export avcodecVersion=58
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export avformatVersion=58
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export avutilVersion=56
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export swresampleVersion=3
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# Aliases for the library files.
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export avcodecLib="${avcodecLibName}.${avcodecVersion}.dylib"
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export avformatLib="${avformatLibName}.${avformatVersion}.dylib"
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export avutilLib="${avutilLibName}.${avutilVersion}.dylib"
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export swresampleLib="${swresampleLibName}.${swresampleVersion}.dylib"
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# Components to enable and build
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export demuxersToEnable="ape,asf,asf_o,dsf,flac,iff,matroska,mpc,mpc8,ogg,rm,tak,tta,wv"
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export parsersToEnable="bmp,cook,flac,gif,jpeg2000,mjpeg,mpegaudio,opus,png,sipr,tak,vorbis,webp"
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export decodersToEnable="ape,cook,dsd_lsbf,dsd_lsbf_planar,dsd_msbf,dsd_msbf_planar,flac,mpc7,mpc8,musepack7,musepack8,opus,ra_144,ra_288,ralf,sipr,tta,tak,vorbis,wavpack,wmav1,wmav2,wmalossless,wmapro,wmavoice"
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# Names of public headers to include in XCFrameworks
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export avcodecHeaderNames=("ac3_parser.h" "adts_parser.h" "avcodec.h" "avdct.h" "avfft.h" "bsf.h" "codec.h" "codec_desc.h" "codec_id.h" "codec_par.h" "d3d11va.h" "dirac.h" "dv_profile.h" "dxva2.h" "jni.h" "mediacodec.h" "packet.h" "qsv.h" "vaapi.h" "vdpau.h" "version.h" "videotoolbox.h" "vorbis_parser.h" "xvmc.h")
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export avformatHeaderNames=("avformat.h" "avio.h" "version.h")
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export avutilHeaderNames=("adler32.h" "aes.h" "aes_ctr.h" "attributes.h" "audio_fifo.h" "avassert.h" "avconfig.h" "avstring.h" "avutil.h" "base64.h" "blowfish.h" "bprint.h" "bswap.h" "buffer.h" "camellia.h" "cast5.h" "channel_layout.h" "common.h" "cpu.h" "crc.h" "des.h" "dict.h" "display.h" "dovi_meta.h" "downmix_info.h" "encryption_info.h" "error.h" "eval.h" "fifo.h" "file.h" "film_grain_params.h" "frame.h" "hash.h" "hdr_dynamic_metadata.h" "hmac.h" "hwcontext.h" "hwcontext_cuda.h" "hwcontext_d3d11va.h" "hwcontext_drm.h" "hwcontext_dxva2.h" "hwcontext_mediacodec.h" "hwcontext_opencl.h" "hwcontext_qsv.h" "hwcontext_vaapi.h" "hwcontext_vdpau.h" "hwcontext_videotoolbox.h" "hwcontext_vulkan.h" "imgutils.h" "intfloat.h" "intreadwrite.h" "lfg.h" "log.h" "lzo.h" "macros.h" "mastering_display_metadata.h" "mathematics.h" "md5.h" "mem.h" "motion_vector.h" "murmur3.h" "opt.h" "parseutils.h" "pixdesc.h" "pixelutils.h" "pixfmt.h" "random_seed.h" "rational.h" "rc4.h" "replaygain.h" "ripemd.h" "samplefmt.h" "sha.h" "sha512.h" "spherical.h" "stereo3d.h" "tea.h" "threadmessage.h" "time.h" "timecode.h" "timestamp.h" "tree.h" "twofish.h" "tx.h" "version.h" "video_enc_params.h" "xtea.h")
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export swresampleHeaderNames=("swresample.h" "version.h")
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# The name of the FFmpeg source archive file.
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export srcArchiveName="ffmpeg-${ffmpegVersion}.tar.bz2"
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# The name of the FFmpeg source directory (once the archive has been uncompressed).
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export srcDirName="ffmpeg-${ffmpegVersion}"
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# MARK: Functions -------------------------------------------------------------------------------------
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function runBuild {
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cleanXCFrameworksDir
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buildFFmpeg
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if [[ "$createFatLibs" == "true" ]]
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then
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createFatLibs
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fi
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copyHeaders
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}
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function cleanXCFrameworksDir {
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if [ -d "xcframeworks" ]; then
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rm -rf xcframeworks
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fi
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}
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function buildFFmpeg {
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# Extract source code from archive.
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if [ ! -d ${srcDirName} ]; then
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tar xjf ${srcArchiveName}
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fi
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# Run all builds in parallel and wait till they all finish.
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for arch in ${architectures[@]}; do
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buildFFmpegForArch $arch &
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done
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wait
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}
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function buildFFmpegForArch {
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arch=$1
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echo "\nBuilding FFmpeg for architecture '${arch}' ..."
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# Make a copy of the source code.
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srcBaseDir="src/${arch}"
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mkdir -p ${srcBaseDir}
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cp -r $srcDirName/* $srcBaseDir
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configureFFmpeg $arch $srcBaseDir
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makeFFmpeg
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copyLibs $arch
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fixInstallNames $arch
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}
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function configureFFmpeg {
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arch=$1
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srcDir=$2
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# CD to the source directory.
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cd ${srcDir}
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setCompilerAndLinkerFlags $arch
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# Configure FFmpeg
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./configure \
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--target-os=darwin \
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${archOption} \
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--cc="${compiler}" \
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--as="${assembler}" \
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--extra-cflags="${extraCompilerFlags}" \
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--extra-ldflags="${extraLinkerFlags}" \
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${crossCompileOption} \
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--enable-gpl \
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--enable-version3 \
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--enable-shared \
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--disable-static \
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--enable-runtime-cpudetect \
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--enable-hardcoded-tables \
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--enable-pthreads \
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--disable-doc \
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--disable-debug \
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--disable-network \
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--disable-all \
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--enable-avcodec \
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--enable-avformat \
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--enable-swresample \
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--disable-avfoundation \
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--disable-audiotoolbox \
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--disable-coreimage \
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--disable-zlib \
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--disable-everything \
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--disable-appkit \
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--disable-iconv \
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--disable-bzlib \
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--disable-sdl2 \
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--disable-videotoolbox \
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--disable-securetransport \
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--enable-demuxer=$demuxersToEnable \
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--enable-parser=$parsersToEnable \
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--enable-decoder=$decodersToEnable \
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--enable-protocol=file
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}
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function makeFFmpeg {
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# Build FFmpeg (use multithreading).
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tokens=$(sysctl hw.physicalcpu)
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numCores="$(cut -d' ' -f2 <<<$tokens)"
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make -j${numCores}
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cd ../..
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}
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function copyLibs {
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arch=$1
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# Create the directory where the libs will be installed in.
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libsDir="dylibs/${arch}"
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mkdir -p $libsDir
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cd $libsDir
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srcDir="../../src/${arch}"
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cp ${srcDir}/${avcodecLibName}/${avcodecLib} .
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cp ${srcDir}/${avformatLibName}/${avformatLib} .
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cp ${srcDir}/${avutilLibName}/${avutilLib} .
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cp ${srcDir}/${swresampleLibName}/${swresampleLib} .
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cd ../..
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}
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function fixInstallNames {
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arch=$1
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cd "dylibs/${arch}"
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install_name_tool -id @rpath/${avcodecLib} ${avcodecLib}
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install_name_tool -change /usr/local/lib/${swresampleLib} @rpath/${swresampleLib} ${avcodecLib}
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install_name_tool -change /usr/local/lib/${avutilLib} @rpath/${avutilLib} ${avcodecLib}
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install_name_tool -id @rpath/${avformatLib} ${avformatLib}
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install_name_tool -change /usr/local/lib/${avcodecLib} @rpath/${avcodecLib} ${avformatLib}
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install_name_tool -change /usr/local/lib/${swresampleLib} @rpath/${swresampleLib} ${avformatLib}
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install_name_tool -change /usr/local/lib/${avutilLib} @rpath/${avutilLib} ${avformatLib}
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install_name_tool -id @rpath/${avutilLib} ${avutilLib}
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install_name_tool -id @rpath/${swresampleLib} ${swresampleLib}
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install_name_tool -change /usr/local/lib/${avutilLib} @rpath/${avutilLib} ${swresampleLib}
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cd ../../..
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}
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function createFatLibs {
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# Combine x86_64 and arm64 dylibs into "fat" universal dylibs.
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cd dylibs
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allDylibs=($avcodecLib $avformatLib $avutilLib $swresampleLib)
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for lib in ${allDylibs[@]}; do
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nonFatLibFiles=""
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for arch in ${architectures[@]}; do
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nonFatLibFiles="${nonFatLibFiles} ${arch}/${lib}"
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done
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lipo ${nonFatLibFiles} -output ${lib} -create
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done
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cd ..
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}
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function copyHeadersForLib {
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srcBaseDir=$1
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libName=$2
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headersBaseDir=$3
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shift
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shift
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shift
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headerNames=("$@")
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srcDir="${srcBaseDir}/${libName}"
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# Add a 2nd level folder with the same library name (otherwise headers are not resolved properly in the XCode project).
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# For example: "/libavcodec/libavcodec/someHeader.h"
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headersDestDir="${headersBaseDir}/${libName}/${libName}"
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mkdir -p $headersDestDir
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for file in ${headerNames[@]}; do
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cp "${srcDir}/${file}" "${headersDestDir}"
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done
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}
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function createXCFrameworks {
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mkdir "xcframeworks"
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createXCFrameworkForLib ${avcodecLibName} ${avcodecLib}
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createXCFrameworkForLib ${avformatLibName} ${avformatLib}
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createXCFrameworkForLib ${avutilLibName} ${avutilLib}
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createXCFrameworkForLib ${swresampleLibName} ${swresampleLib}
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}
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function cleanUp {
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rm -rf ${srcDirName}
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rm -rf src
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rm -rf dylibs
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rm -rf headers
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}

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