帮助在 Linux 下编译支持 NVENC 的 ffmpeg

Question

我正在尝试构建支持 NVENC 的 ffmpeg，以便能够构建支持 NVENC 的 obs-studio，使用这是一个指导。经过一番头痛之后，我已经解决了所有依赖关系，现在我已经到了这样的地步：应该能够通过编辑其规则文件来编译 ffmpeg 就好了。然而，我值得信赖的终端向我吐出以下内容：

http://pastebin.com/888pa3kW

这是我的 ffmpeg/debian/rules 文件：

#!/usr/bin/make -f

export V=1

# sets DEBIAN_VERSION variable
include /usr/share/dpkg/pkg-info.mk

# Get the Debian version revision:
DEB_REVISION := $(word 2, $(subst -, ,$(DEB_VERSION)))

# sets DEB_HOST_* variables
include /usr/share/dpkg/architecture.mk

# Ubuntu ld adds -Bsymbolic-functions by default, but that prevents FFmpeg from building.
export DEB_LDFLAGS_MAINT_STRIP=-Wl,-Bsymbolic-functions

# Package name for the extra flavor.
EXTRA_PKGS := $(shell sed -nr 's/^Package:[[:space:]]*(.*extra[0-9]+)[[:space:]]*$$/\1/p' debian/control)
FLAVORS = standard extra static

# Enable as many features as possible, as long as the result is still GPLv2+ (a GPLv3+ variant is built as libavcodec-extra/libavfilter-extra flavor).
# The following flags (and build-dependencies) are not added, because they would require a libavformat-extra flavor:
#   --enable-libsmbclient           (libsmbclient-dev [!hurd-i386 !m68k !sparc64])
# The following flags are not added, because the necessary libraries are not in Debian:
#   --enable-decklink
#   --enable-libcelt                (see #676592: removed from Debian as abandoned upstream, replaced by opus)
#   --enable-libdcadec
#   --enable-libilbc                (see #675959 for the RFP bug)
#   --enable-libkvazaar
#   --enable-libmfx
#   --enable-libnut
#   --enable-libopenh264
#   --enable-libopenmpt
#   --enable-libschroedinger        (see #845037: removal due to security issues)
#   --enable-libutvideo
#   --enable-libvidstab             (see #709193 for the RFP bug)
#   --enable-libxavs
#   --enable-libzimg
# The following flags are not added for various reasons:
#   * --enable-librtmp:             ffmpeg has better built-in RTMP support with listen mode.
#   * --enable-libv4l2 [!hurd-any]: This is only needed for very old devices and may cause problems for others.
#                                   Should anyone need it, using LD_PRELOAD pointing on libv4l2 has the same effect.
#   * --enable-opencl [!hurd-any]:  This is considered an experimental API.
CONFIG := --prefix=/usr \
    --extra-version="$(DEB_REVISION)" \
    --toolchain=hardened \
    --libdir=/usr/lib/$(DEB_HOST_MULTIARCH) \
    --incdir=/usr/include/$(DEB_HOST_MULTIARCH) \
    --enable-gpl \
    --disable-stripping \
    --enable-avresample \
    --enable-avisynth \
    --enable-gnutls \
    --enable-ladspa \
    --enable-libass \
    --enable-libbluray \
    --enable-libbs2b \
    --enable-libcaca \
    --enable-libcdio \
    --enable-libebur128 \
    --enable-libflite \
    --enable-libfontconfig \
    --enable-libfreetype \
    --enable-libfribidi \
    --enable-libgme \
    --enable-libgsm \
    --enable-libmodplug \
    --enable-libmp3lame \
    --enable-libopenjpeg \
    --enable-libopus \
    --enable-libpulse \
    --enable-librubberband \
    --enable-libshine \
    --enable-libsnappy \
    --enable-libsoxr \
    --enable-libspeex \
    --enable-libssh \
    --enable-libtheora \
    --enable-libtwolame \
    --enable-libvorbis \
    --enable-libvpx \
    --enable-libwavpack \
    --enable-libwebp \
    --enable-libx265 \
    --enable-libxvid \
    --enable-libzmq \
    --enable-libzvbi \
    --enable-omx \
    --enable-openal \
    --enable-opengl \
    --enable-sdl2 \
    --enable-nonfree \
    --enable-nvenc

# The standard configuration only uses the shared CONFIG.
CONFIG_standard = --enable-shared

# With these enabled, resulting binaries are effectively licensed as GPLv3+.
CONFIG_extra = --enable-shared \
    --enable-version3 \
    --disable-doc \
    --disable-programs \
    --enable-libopencore_amrnb \
    --enable-libopencore_amrwb \
    --enable-libtesseract \
    --enable-libvo_amrwbenc

# The static libraries should not be built with PIC.
CONFIG_static = --disable-pic \
    --disable-doc \
    --disable-programs

# Disable optimizations if requested.
ifneq (,$(filter $(DEB_BUILD_OPTIONS),noopt))
CONFIG += --disable-optimizations
endif

# Respect CC/CXX from the environment, if they differ from the default.
# Don't set them if they equal the default, because that disables autodetection needed for cross-building.
ifneq ($(CC),cc)
    CONFIG += --cc=$(CC)
endif
ifneq ($(CXX),g++)
    CONFIG += --cxx=$(CXX)
endif

# Some libraries are built only on linux.
ifeq ($(DEB_HOST_ARCH_OS),linux)
    CONFIG += --enable-libdc1394 \
    --enable-libiec61883
endif

# Some build-dependencies are not installable on some architectures.
ifeq (,$(filter $(DEB_HOST_ARCH),powerpcspe))
    CONFIG_extra += --enable-netcdf
endif

# ffmpeg is involed in build-dependency cycles with opencv, x264 and chromaprint, so disable them in stage one.
# Also disable frei0r, which build-depends on opencv.
ifneq ($(filter stage1,$(DEB_BUILD_PROFILES)),)
    CONFIG += --disable-frei0r \
    --disable-chromaprint \
    --disable-libopencv \
    --disable-libx264
else
    CONFIG += --enable-libopencv \
    --enable-frei0r
ifeq (,$(filter $(DEB_HOST_ARCH),powerpcspe))
    CONFIG += --enable-libx264
endif
ifeq (,$(filter $(DEB_HOST_ARCH),sh4))
    CONFIG += --enable-chromaprint
endif
endif

# Disable altivec optimizations on powerpc, because they are not always available on this architecture.
ifeq ($(DEB_HOST_ARCH),powerpc)
    CONFIG += --disable-altivec
    # Build an altivec flavor of the libraries on powerpc.
    # This works around the problem that runtime cpu detection on powerpc currently does not work,
    # because, if altivec is enabled, all files are build with '-maltivec' so that the compiler inserts altivec instructions, wherever it likes.
    CONFIG_altivec = --enable-shared \
    --enable-altivec \
    --disable-doc \
    --disable-programs
    CONFIG_altivec-extra = $(CONFIG_altivec) $(CONFIG_extra)
    FLAVORS += altivec altivec-extra
endif

# Disable assembly optimizations on x32, because they don't work (yet).
ifneq (,$(filter $(DEB_HOST_ARCH),x32))
    CONFIG += --disable-asm
endif

# Disable optimizations on mips(el) and some on mips64(el), because they are not always available on these architectures.
ifneq (,$(filter $(DEB_HOST_ARCH),mips mipsel mips64 mips64el))
    CONFIG += --disable-mipsdsp \
    --disable-mipsdspr2 \
    --disable-loongson3 \
    --disable-mips32r6 \
    --disable-mips64r6
endif
ifneq (,$(filter $(DEB_HOST_ARCH),mips mipsel))
    CONFIG += --disable-mipsfpu
endif

# Set cross-build prefix for compiler, pkg-config...
# Cross-building also requires to manually set architecture/OS.
ifneq ($(DEB_BUILD_GNU_TYPE),$(DEB_HOST_GNU_TYPE))
    CONFIG += --cross-prefix=$(DEB_HOST_GNU_TYPE)- \
    --arch=$(DEB_HOST_ARCH) \
    --target-os=$(DEB_HOST_ARCH_OS)
endif

# Use the default debhelper scripts, where possible.
%:
dh $@

# Add configuration options:
override_dh_auto_configure:
    $(foreach flavor,$(FLAVORS),mkdir -p debian/$(flavor);)
    $(foreach flavor,$(FLAVORS),set -e; echo " *** $(flavor) ***"; cd debian/$(flavor); ../../configure $(CONFIG) $(CONFIG_$(flavor)) || (cat config.log && exit 1); cd ../.. ;)
    touch override_dh_auto_configure

# Remove the subdirectories generated for the flavors.
override_dh_auto_clean:
    $(foreach flavor,$(FLAVORS),[ ! -d debian/$(flavor) ] || rm -r debian/$(flavor);)

# Create doxygen documentation:
override_dh_auto_build-indep:
    dh_auto_build -i --sourcedirectory=debian/standard -- apidoc
    # Create the minified CSS files.
    lessc debian/missing-sources/ffmpeg-web/src/less/style.less | cleancss > debian/standard/doc/style.min.css
    rm override_dh_auto_configure

override_dh_auto_build-arch:
    # Copy built object files to avoid building them again for the extra flavor.
    # Build qt-faststart here, to make it possible to build with 'nocheck'.
    set -e && for flavor in $(FLAVORS); do \
        echo " *** $$flavor ***"; \
        if echo "$$flavor" | grep -q "extra"; then \
            subdir=`[ "$$flavor" = "extra" ] && echo "debian/standard/" || echo "debian/altivec/"`; \
        for dir in `cd ./$$subdir; find libavcodec libavdevice libavfilter libavformat libavresample libavutil libpostproc libswscale libswresample -type d`; do \
            mkdir -p debian/"$$flavor"/"$$dir"; \
            echo "$$subdir$$dir"/*.o | grep -q '*' || cp "$$subdir$$dir"/*.o debian/"$$flavor"/"$$dir"; \
        done; \
        rm debian/"$$flavor"/libavcodec/allcodecs.o; \
        rm debian/"$$flavor"/libavfilter/allfilters.o; \
    fi; \
    if [ "$$flavor" = "standard" ]; then \
        $(MAKE) -C debian/standard tools/qt-faststart; \
    fi; \
    dh_auto_build -a --sourcedirectory=debian/"$$flavor" || (cat debian/"$$flavor"/config.log && exit 1); \
done

# Set the library path for the dynamic linker, because the tests otherwise don't find the libraries.
override_dh_auto_test-arch:
    export LD_LIBRARY_PATH="libavcodec:libavdevice:libavfilter:libavformat:libavresample:libavutil:libpostproc:libswresample:libswscale"; \
        dh_auto_test -a --sourcedirectory=debian/standard -- -k

# No tests for indep build.
override_dh_auto_test-indep:

override_dh_auto_install-arch:
    dh_auto_install -a --sourcedirectory=debian/standard
ifeq ($(DEB_HOST_ARCH),powerpc)
    install -d debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/altivec
    install -m 644 debian/altivec/*/*.so.* debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/altivec
endif
    dh_auto_install -a --sourcedirectory=debian/extra --destdir=debian/tmp/extra
ifeq ($(DEB_HOST_ARCH),powerpc)
    install -d debian/tmp/extra/usr/lib/$(DEB_HOST_MULTIARCH)/altivec
    install -m 644 debian/altivec-extra/*/*.so.* debian/tmp/extra/usr/lib/$(DEB_HOST_MULTIARCH)/altivec
endif
    # Use the static libraries from the --disable-pic build
    install -m 644 debian/static/*/lib*.a debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)

override_dh_auto_install-indep:
    dh_auto_install -i --sourcedirectory=debian/standard

override_dh_install:
    dh_install $(addprefix -p,$(EXTRA_PKGS)) --sourcedir=debian/tmp/extra
    dh_install --remaining-packages

override_dh_makeshlibs:
    set -e && for pkg in $(shell dh_listpackages -a) ; do \
        case $$pkg in \
            ffmpeg|*-dev) \
                continue \
                ;; \
            *avcodec*) \
                soversion=$$(echo $$pkg | sed -nr 's/^[^0-9]*([0-9]+)$$/\1/p'); \
                dh_makeshlibs -p $$pkg -V"libavcodec$$soversion (>= ${DEB_VERSION_EPOCH_UPSTREAM}) | libavcodec-extra$$soversion (>= ${DEB_VERSION_EPOCH_UPSTREAM})" \
                ;; \
            *avfilter*) \
                soversion=$$(echo $$pkg | sed -nr 's/^[^0-9]*([0-9]+)$$/\1/p'); \
                dh_makeshlibs -p $$pkg -V"libavfilter$$soversion (>= ${DEB_VERSION_EPOCH_UPSTREAM}) | libavfilter-extra$$soversion (>= ${DEB_VERSION_EPOCH_UPSTREAM})" \
                ;; \
            *) \
                dh_makeshlibs -p $$pkg -V \
                ;; \
        esac \
    done

# Don't compress the example source code files.
override_dh_compress:
    dh_compress -Xexamples

我运行的是 Linux Lite 3.2 64 位，它基于 Ubuntu 16.04。我基本上对此完全陌生，所以我需要一些指导。

Answer 1

我可以在 LXC Ubuntu 16.04 容器中毫无问题地构建它。

1. vi /etc/apt/sources.list添加了源代码和向后移植存储库：

   deb http://archive.ubuntu.com/ubuntu xenial main restricted universe multiverse
   deb http://archive.ubuntu.com/ubuntu xenial-updates main restricted universe multiverse
   deb http://security.ubuntu.com/ubuntu xenial-security main restricted universe multiverse
   deb http://security.ubuntu.com/ubuntu xenial-backports main restricted universe multiverse
   deb-src http://archive.ubuntu.com/ubuntu xenial main restricted universe multiverse
   deb-src http://archive.ubuntu.com/ubuntu xenial-updates main restricted universe multiverse
   deb-src http://security.ubuntu.com/ubuntu xenial-security main restricted universe multiverse
   deb-src http://security.ubuntu.com/ubuntu xenial-backports main restricted universe multiverse
   

2. 安装依赖项和构建工具，包括来自向后移植存储库的debhelper& dh-autoreconf，用于apt-cache policy ...检查其当前版本。

   apt update
   apt build-dep ffmpeg
   apt install git openssl ca-certificates devscripts dh-autoreconf=12~ubuntu16.04.1 debhelper=10.2.2ubuntu1~ubuntu16.04.1 libchromaprint-dev libebur128-dev libleptonica-dev libnetcdf-dev libomxil-bellagio-dev libopenjp2-7-dev librubberband-dev libsdl2-dev libtesseract-dev nasm
   

3. 下载源码

   git clone https://anonscm.debian.org/git/pkg-multimedia/ffmpeg.git
   

4. 修改规则文件添加--enable-nonfree和--enable-nvenc

   cd ffmpeg/
   echo 'libva 1 libva1' > debian/shlibs.local
   

   vi debian/rules：

   CONFIG :=...
       --enable-sdl2 \
       --enable-nonfree \
       --enable-nvenc
   

5. 建造它

   debuild -us -uc -b
   

这是结果 debian 软件包列表。

回复 OP，获取新的错误消息

• lintian是 Debian 软件包的 QC 工具，它仅验证结果包，但不影响构建过程。

  Now running lintian...
  E: ffmpeg changes: bad-distribution-in-changes-file unstable
  W: libavdevice57: virtual-package-depends-without-real-package-depends depends: libgl1
  N: 9 tags overridden (8 warnings, 1 info)
  Finished running lintian.
  

  但是，如果您想更正该错误消息。出现该错误是因为我们复制了为 Debian 版本准备的源代码unstable。我们的情况应该是xenialUbuntu 版本。在文件夹内运行ffmpeg/：

  dch
  

  添加新条目debian/changelog并将其设置为xenial示例：

  ffmpeg (7:3.2.2-1ubuntu1) xenial; urgency=medium
  
    * backport to xenial
  
   -- root <root@ci2>  Wed, 28 Dec 2016 11:24:08 +0000
  

• libavfilter-extra*是替代方案，libavfilter*并且它们不能一起安装在同一系统中。您必须根据您的需要进行选择（如果您不知道，请额外安装）

  dpkg: regarding libavfilter-extra6_3.2.2-1_amd64.deb containing libavfilter-extra6:amd64:
   libavfilter-extra6 conflicts with libavfilter6
  

• 存储库中提供的其他缺少的依赖项，例如：

   ffmpeg-doc depends on libjs-bootstrap; however:
    Package libjs-bootstrap is not installed.
  

  可以使用以下方式下载：

  sudo apt -f install