[FFmpeg-trac] #11615(website:new): Web site Documentation - possibe error in https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu#

[FFmpeg]

#11615: Web site Documentation - possibe error in
https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu#
-------------------------------------+-----------------------------------
             Reporter:  ezgoen       |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  website
              Version:  unspecified  |               Resolution:
             Keywords:  libvmaf      |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-----------------------------------
Description changed by ezgoen:

Old description:

> In the section regarding libvmaf in
> https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu#
>
> compiling with the result of the steps described:
>
> wget https://github.com/Netflix/vmaf/archive/v3.0.0.tar.gz && \
> tar xvf v3.0.0.tar.gz && \ ...
> At the time of writing there are no .git folders in this archive.
>
> This generates a git error in the line within
> vmaf-3.0.0/libvmaf/build/build.ninja
> I note that the following line produces a fatal error
> --git-dir .../ffmpeg/sources/vmaf-3.0.0/libvmaf/../.git describe --tags
> --long --match '?.*.*' --always
>
> This is a git error NOT a compile error but results in a meson argument
> with a bogus component which may result in a failure to build
>

>
> I have rewritten the example with seemingly reliable results as :
>
>   cd ~/ffmpeg_sources && \
>   git clone  https://github.com/Netflix/vmaf.git vmaf-3.0.0 && \
>   mkdir -p vmaf-3.0.0/libvmaf/build && \
>   cd vmaf-3.0.0/libvmaf/build && \
>   meson setup -Denable_tests=false -Denable_docs=false
> --buildtype=release --default-library=static .. --prefix
> "$HOME/ffmpeg_build" --bindir="$HOME/bin"
> --libdir="$HOME/ffmpeg_build/lib" && \
>   ninja && \
>   ninja install
>
> The only caveat may be that
> git clone  https://github.com/Netflix/vmaf.git
> may always retrieve the latest release which means the version may end up
> mismatching with the code examples
>
> In case this helps someone

New description:

 In the section regarding libvmaf in
 https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu#

 compiling with the result of the steps described:

 wget https://github.com/Netflix/vmaf/archive/v3.0.0.tar.gz && \
 tar xvf v3.0.0.tar.gz && \ ...
 At the time of writing there are no .git folders in this archive.

 This generates a git error in the line within
 vmaf-3.0.0/libvmaf/build/build.ninja
 I note that the following line produces a fatal error
 --git-dir .../ffmpeg/sources/vmaf-3.0.0/libvmaf/../.git describe --tags
 --long --match '?.*.*' --always

 This is a git error NOT a compile error but results in a meson argument
 with a bogus component which may result in a failure to build



 I have rewritten the example with seemingly reliable results as :

   cd ~/ffmpeg_sources && \
   git clone  https://github.com/Netflix/vmaf.git vmaf-3.0.0 && \
   mkdir -p vmaf-3.0.0/libvmaf/build && \
   cd vmaf-3.0.0/libvmaf/build && \
   meson setup -Denable_tests=false -Denable_docs=false --buildtype=release
 --default-library=static .. --prefix "$HOME/ffmpeg_build"
 --bindir="$HOME/bin" --libdir="$HOME/ffmpeg_build/lib" && \
   ninja && \
   ninja install

 The only caveat may be that
 git clone  https://github.com/Netflix/vmaf.git
 may always retrieve the latest release which means the version may end up
 mismatching with the code examples

 To this end I modified the above :

   REPO="Netflix/vmaf"
   LIBVMAF_LATEST_RELEASE=$(curl -s
 "https://api.github.com/repos/${REPO}/releases/latest" | grep -oP
 '"tag_name": "\K.*?(?=")')
   echo "latest release $LIBVMAF_LATEST_RELEASE"
   LIBVMAF_LATEST_RELEASE=$(echo $LIBVMAF_LATEST_RELEASE | cut -d: -f2 |
 cut -dv -f2)
   LIBVDIR="vmaf-${LIBVMAF_LATEST_RELEASE}"

   cd ~/ffmpeg_sources && \
   git clone  https://github.com/Netflix/vmaf.git ${LIBVDIR} && \
   mkdir -p "${LIBVDIR}/libvmaf/build" && \
   cd "${LIBVDIR}/libvmaf/build" && \
   meson setup -Denable_tests=false -Denable_docs=false --buildtype=release
 --default-library=static .. --prefix "$HOME/ffmpeg_build"
 --bindir="$HOME/bin" --libdir="$HOME/ffmpeg_build/lib" && \
   ninja && \
   ninja install




 In case this helps someone

--
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11615#comment:1>
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