Unverified Commit 807b6e92 authored by Gaël James's avatar Gaël James
Browse files

whisper-cpp: add FFmpeg support 

as detailed at https://github.com/ggml-org/whisper.cpp#ffmpeg-support-linux-only

note: for whisper-server to work, it must be started with `--convert` (even for natively support formats, such as wav)
parent cc939394

pkgs/by-name/wh/whisper-cpp/package.nix

+12 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
  SDL2,

  wget,

  which,

  ffmpeg,

  autoAddDriverRunpath,

  makeWrapper,

  nix-update-script,
@@ -29,10 +30,13 @@ 
  vulkan-loader,



  withSDL ? true,



  withFFmpegSupport ? false,

}:



assert metalSupport -> stdenv.hostPlatform.isDarwin;

assert coreMLSupport -> stdenv.hostPlatform.isDarwin;

assert withFFmpegSupport -> stdenv.hostPlatform.isLinux;



let

  # It's necessary to consistently use backendStdenv when building with CUDA support,
@@ -108,6 +112,7 @@ effectiveStdenv.mkDerivation (finalAttrs: { 


  buildInputs =

    optional withSDL SDL2

    ++ optional withFFmpegSupport ffmpeg

    ++ optionals cudaSupport cudaBuildInputs

    ++ optionals rocmSupport rocmBuildInputs

    ++ optionals vulkanSupport vulkanBuildInputs;
@@ -122,6 +127,9 @@ effectiveStdenv.mkDerivation (finalAttrs: { 
    (cmakeBool "GGML_NATIVE" false)

    (cmakeBool "BUILD_SHARED_LIBS" (!effectiveStdenv.hostPlatform.isStatic))

  ]

  ++ optionals effectiveStdenv.hostPlatform.isLinux [

    (cmakeBool "WHISPER_FFMPEG" withFFmpegSupport)

  ]

  ++ optionals (effectiveStdenv.hostPlatform.isx86 && !effectiveStdenv.hostPlatform.isStatic) [

    (cmakeBool "GGML_BACKEND_DL" true)

    (cmakeBool "GGML_CPU_ALL_VARIANTS" true)
@@ -156,6 +164,10 @@ effectiveStdenv.mkDerivation (finalAttrs: { 


    wrapProgram "$out/bin/whisper-cpp-download-ggml-model" \

      --prefix PATH : ${lib.makeBinPath [ wget ]}

  ''

  + lib.optionalString withFFmpegSupport ''

    wrapProgram "$out/bin/whisper-server" \

      --prefix PATH : ${lib.makeBinPath [ ffmpeg ]}

  '';



  requiredSystemFeatures = optionals rocmSupport [ "big-parallel" ]; # rocmSupport multiplies build time by the number of GPU targets, which takes arround 30 minutes on a 16-cores system to build