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conan install ffmpeg/4.2.1@ --build=ffmpeg --profile:host=/Users/jenkins/w/BuildSingleReference@2/30689/02397275-d706-46c6-88b1-cb51507fc2cd/profile_host.txt --profile:build=default
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Configuration (profile_host):
[settings]
arch=armv8
build_type=Debug
compiler=apple-clang
compiler.libcxx=libc++
compiler.version=12.0
os=Macos
[options]
ffmpeg:shared=False
[build_requires]
[env]

Configuration (profile_build):
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=apple-clang
compiler.libcxx=libc++
compiler.version=12.0
os=Macos
os_build=Macos
[options]
[build_requires]
[env]

ffmpeg/4.2.1: Forced build from source
Installing package: ffmpeg/4.2.1
Requirements
    brotli/1.0.9 from 'conan-center' - Cache
    bzip2/1.0.8 from 'conan-center' - Cache
    ffmpeg/4.2.1 from local cache - Cache
    freetype/2.10.4 from 'conan-center' - Cache
    libfdk_aac/2.0.1 from 'conan-center' - Cache
    libiconv/1.16 from 'conan-center' - Cache
    libmp3lame/3.100 from 'conan-center' - Cache
    libpng/1.6.37 from 'conan-center' - Cache
    libvpx/1.9.0 from 'conan-center' - Cache
    libwebp/1.0.3 from 'conan-center' - Cache
    libx264/20190605 from 'conan-center' - Cache
    libx265/3.4 from 'conan-center' - Cache
    ogg/1.3.4 from 'conan-center' - Cache
    openh264/1.7.0 from 'conan-center' - Cache
    openjpeg/2.4.0 from 'conan-center' - Cache
    openssl/1.1.1k from 'conan-center' - Cache
    opus/1.3.1 from 'conan-center' - Cache
    vorbis/1.3.7 from 'conan-center' - Cache
    xz_utils/5.2.5 from 'conan-center' - Cache
    zlib/1.2.11 from 'conan-center' - Cache
Packages
    brotli/1.0.9:baf78352c82543f997ec32332829b6fa30714eaa - Download
    bzip2/1.0.8:1eebc1ca972faabad362af04f3107014f151fa5d - Download
    ffmpeg/4.2.1:b92d02f372ca1c6fb9c8da4dd812c25434ac8696 - Build
    freetype/2.10.4:ca9a5981297e341b8442d261d6f91d0af60e055b - Download
    libfdk_aac/2.0.1:929c83d5aae0ebf9f67f0a2eb7bc58aed10c6910 - Download
    libiconv/1.16:baf78352c82543f997ec32332829b6fa30714eaa - Download
    libmp3lame/3.100:baf78352c82543f997ec32332829b6fa30714eaa - Download
    libpng/1.6.37:6347693437e9f879b25630da15bcd83033510088 - Download
    libvpx/1.9.0:929c83d5aae0ebf9f67f0a2eb7bc58aed10c6910 - Missing
    libwebp/1.0.3:263e7e2760ab0f8e33771d6415e3b075694771a6 - Download
    libx264/20190605:b25a35ed437515e5746da05b40e6106a741ecfe1 - Download
    libx265/3.4:2a21d7e724069c91f58b19547b5b5f8e4b908c9a - Download
    ogg/1.3.4:baf78352c82543f997ec32332829b6fa30714eaa - Download
    openh264/1.7.0:929c83d5aae0ebf9f67f0a2eb7bc58aed10c6910 - Download
    openjpeg/2.4.0:baf78352c82543f997ec32332829b6fa30714eaa - Download
    openssl/1.1.1k:baf78352c82543f997ec32332829b6fa30714eaa - Download
    opus/1.3.1:baf78352c82543f997ec32332829b6fa30714eaa - Download
    vorbis/1.3.7:521d6b3c6cd3236ae5ba6803035d09513d6f07dc - Download
    xz_utils/5.2.5:baf78352c82543f997ec32332829b6fa30714eaa - Download
    zlib/1.2.11:baf78352c82543f997ec32332829b6fa30714eaa - Download
Build requirements
    yasm/1.3.0 from 'conan-center' - Cache
Build requirements packages
    yasm/1.3.0:801752c0480319b8e090188c566245a78e9abcf4 - Download

Cross-build from 'Macos:x86_64' to 'Macos:armv8'
Installing (downloading, building) binaries...

ERROR: Missing binary: libvpx/1.9.0:929c83d5aae0ebf9f67f0a2eb7bc58aed10c6910
libvpx/1.9.0: WARN: Can't find a 'libvpx/1.9.0' package for the specified settings, options and dependencies:
- Settings: arch=armv8, build_type=Debug, compiler=apple-clang, compiler.libcxx=libc++, compiler.version=12.0, os=Macos
- Options: fPIC=True, shared=False
- Dependencies: 
- Requirements: 
- Package ID: 929c83d5aae0ebf9f67f0a2eb7bc58aed10c6910

ERROR: Missing prebuilt package for 'libvpx/1.9.0'
Try to build from sources with '--build=libvpx'
Use 'conan search <reference> --table table.html'
Or read 'http://docs.conan.io/en/latest/faq/troubleshooting.html#error-missing-prebuilt-package'