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    你的位置：在路上 > 工作和技术 > OS_Platform > Mac > 【已解决】Mac中尝试给mp4内嵌字幕出错：AVFilterGraph No such filter ass

    【已解决】Mac中尝试给mp4内嵌字幕出错：AVFilterGraph No such filter ass

    Mac crifan 3292浏览
    折腾：
    【未解决】Mac中用ffmpeg调整mp4默认字幕为中文
    期间，用：
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    ➜  ffmpeg_edit_subtitle ffmpeg -i CTT_Folge_01_CH_Subs_DefaultZhcnButNotShow.mp4 -vf "ass=subtitle.ass" addedAssSubtitle.mp4
    ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
      built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
      configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4.2 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --disable-jack --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
      libavutil      55. 78.100 / 55. 78.100
      libavcodec     57.107.100 / 57.107.100
      libavformat    57. 83.100 / 57. 83.100
      libavdevice    57. 10.100 / 57. 10.100
      libavfilter     6.107.100 /  6.107.100
      libavresample   3.  7.  0 /  3.  7.  0
      libswscale      4.  8.100 /  4.  8.100
      libswresample   2.  9.100 /  2.  9.100
      libpostproc    54.  7.100 / 54.  7.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'CTT_Folge_01_CH_Subs_DefaultZhcnButNotShow.mp4':
      Metadata:
        major_brand     : mp42
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        creation_time   : 2018-10-13T03:27:31.000000Z
        encoder         : HandBrake 1.1.2 2018090500
      Duration: 00:26:52.03, start: -0.001333, bitrate: 1762 kb/s
        Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 1599 kb/s, 25 fps, 25 tbr, 90k tbn, 180k tbc (default)
        Metadata:
          creation_time   : 2018-10-13T03:27:31.000000Z
          handler_name    : VideoHandler
        Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 157 kb/s (default)
        Metadata:
          creation_time   : 2018-10-13T03:27:31.000000Z
          handler_name    : Stereo
        Stream #0:2(zho): Subtitle: mov_text (tx3g / 0x67337874), 1280x108, 0 kb/s (default)
        Metadata:
          creation_time   : 2018-10-13T03:27:31.000000Z
          handler_name    : SubtitleHandler
    Stream mapping:
      Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
      Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    Press [q] to stop, [?] for help
    [AVFilterGraph @ 0x7fa224608740] No such filter: 'ass'
    Error reinitializing filters!
    Failed to inject frame into filter network: Invalid argument
    Error while processing the decoded data for stream #0:0
    [aac @ 0x7fa226032a00] Qavg: 42469.492
    [aac @ 0x7fa226032a00] 2 frames left in the queue on closing
    Conversion failed!
    ➜  ffmpeg_edit_subtitle
    出错：
    [AVFilterGraph @ 0x7fa224608740] No such filter: ‘ass’
    -》之前也遇到类似错误：
    [AVFilterGraph @ 0x7fc399d0a980] No such filter: ‘subtitles’
    -》看来mp4，即没有subtitles，也有没ass的filter
    再去试试
    -vf ass=subtitles.ass
    -》看到人说了：
    “Use the libass library (make sure your ffmpeg install has the library in the configuration –enable-libass).”
    -》发现和上面的错误是一个意思
    -》不过，从之前的ffmpeg的输出看，此处的ffmpeg没有：enable-libass
    所以现在是：
    已经用了：
    ?
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    ffmpeg -i CTT_Folge_01_CH_Subs_DefaultZhcnButNotShow.mp4 -i subtitle.srt -c copy -c:s mov_text movTextSubtitle.mp4
    把srt的字幕 添加到mp4了
    -》但是还是只是subtitle stream，而不是burned in=embed=嵌入
    -》想要嵌入，则需要用：
    ?
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    -vf ass=subtitles.ass
    但是此处没有ass的filter
    -》需要去想办法给ffmpeg添加enable-libass
    subtitles – Hardcoding Subs with ffmpeg? – Super User
    自己去编译？
    CompilationGuide – FFmpeg
    CompilationGuide/macOS – FFmpeg
    ?
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    ➜  ffmpeg_edit_subtitle brew info ffmpeg
    ffmpeg: stable 3.4.2 (bottled), HEAD
    Play, record, convert, and stream audio and video
    https://ffmpeg.org/
    /usr/local/Cellar/ffmpeg/3.4.2 (248 files, 50.9MB) *
      Poured from bottle on 2018-04-17 at 10:51:58
    From:
    https://mirrors.ustc.edu.cn/homebrew-core.git/Formula/ffmpeg.rb
    ==> Dependencies
    Build: nasm ✘, pkg-config ✔, texi2html ✘
    Recommended: lame ✔, x264 ✔, xvid ✔
    Optional: chromaprint ✘, fdk-aac ✘, fontconfig ✘, freetype ✘, frei0r ✘, game-music-emu ✘, libass ✘, libbluray ✘, libbs2b ✘, libcaca ✘, libgsm ✘, libmodplug ✘, librsvg ✘, libsoxr ✘, libssh ✘, libvidstab ✘, libvorbis ✘, libvpx ✘, opencore-amr ✘, openh264 ✘, openjpeg ✘, openssl ✔, opus ✘, rtmpdump ✘, rubberband ✘, sdl2 ✘, snappy ✘, speex ✘, tesseract ✘, theora ✘, two-lame ✘, wavpack ✘, webp ✘, x265 ✘, xz ✔, zeromq ✘, zimg ✘
    ==> Options
    --with-chromaprint
        Enable the Chromaprint audio fingerprinting library
    --with-fdk-aac
        Enable the Fraunhofer FDK AAC library
    --with-fontconfig
        Build with fontconfig support
    --with-freetype
        Build with freetype support
    --with-frei0r
        Build with frei0r support
    --with-game-music-emu
        Build with game-music-emu support
    --with-libass
        Enable ASS/SSA subtitle format
    --with-libbluray
        Build with libbluray support
    --with-libbs2b
        Build with libbs2b support
    --with-libcaca
        Build with libcaca support
    --with-libgsm
        Build with libgsm support
    --with-libmodplug
        Build with libmodplug support
    --with-librsvg
        Enable SVG files as inputs via librsvg
    --with-libsoxr
        Enable the soxr resample library
    --with-libssh
        Enable SFTP protocol via libssh
    --with-libvidstab
        Enable vid.stab support for video stabilization
    --with-libvorbis
        Build with libvorbis support
    --with-libvpx
        Build with libvpx support
    --with-opencore-amr
        Enable Opencore AMR NR/WB audio format
    --with-openh264
        Enable OpenH264 library
    --with-openjpeg
        Enable JPEG 2000 image format
    --with-openssl
        Enable SSL support
    --with-opus
        Build with opus support
    --with-rtmpdump
        Enable RTMP protocol
    --with-rubberband
        Enable rubberband library
    --with-sdl2
        Enable FFplay media player
    --with-snappy
        Enable Snappy library
    --with-speex
        Build with speex support
    --with-tesseract
        Enable the tesseract OCR engine
    --with-theora
        Build with theora support
    --with-tools
        Enable additional FFmpeg tools
    --with-two-lame
        Build with two-lame support
    --with-wavpack
        Build with wavpack support
    --with-webp
        Enable using libwebp to encode WEBP images
    --with-x265
        Enable x265 encoder
    --with-xz
        Enable decoding of LZMA-compressed TIFF files
    --with-zeromq
        Enable using libzeromq to receive commands sent through a libzeromq client
    --with-zimg
        Enable z.lib zimg library
    --without-gpl
        Disable building GPL licensed parts of FFmpeg
    --without-lame
        Disable MP3 encoder
    --without-qtkit
        Disable deprecated QuickTime framework
    --without-securetransport
        Disable use of SecureTransport
    --without-x264
        Disable H.264 encoder
    --without-xvid
        Disable Xvid MPEG-4 video encoder
    --HEAD
        Install HEAD version
    所以此处是：
    libass，没有开启。
    去参考示例，开启：
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    brew install ffmpeg \
        --with-tools \
        --with-fdk-aac \
        --with-freetype \
        --with-fontconfig \
        --with-libass \
        --with-libvorbis \
        --with-libvpx \
        --with-opus \
        --with-x265
    结果提示：
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    ➜  ffmpeg_edit_subtitle brew install ffmpeg \
        --with-tools \
        --with-fdk-aac \
        --with-freetype \
        --with-fontconfig \
        --with-libass \
        --with-libvorbis \
        --with-libvpx \
        --with-opus \
        --with-x265
    Updating Homebrew...
    Warning: ffmpeg 3.4.2 is already installed and up-to-date
    To reinstall 3.4.2, run `brew reinstall ffmpeg
    需要重新安装ffmpeg。
    那就重新安装，加上那些参数，结果：
    【已解决】Mac中brew reinstall ffmpeg出错：Error: Calling keg_only :provided_pre_mountain_lion is disabled! There is no replacement
    然后就支持了ass。

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