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  1. Member
    Join Date
    Apr 2012
    Location
    Ireland
    Search Comp PM
    I'm trying to use ffmpeg to create MP4 files with burnt-in subtitles (from a .srt file) as described in:

    https://trac.ffmpeg.org/wiki/HowToBurnSubtitlesIntoVideo

    I'm having no luck. I get an output file, but no burnt in subtitles. The issue could be fontconfig.

    I'm using ffmpeg on Windows 7 (64 bit), built with --enable-libass as required:

    Code:
    E:\Downloads>ffmpeg -h
    ffmpeg version N-69190-g6c559a0 Copyright (c) 2000-2015 the FFmpeg developers
      built on Jan 22 2015 03:13:44 with gcc 4.9.2 (GCC)
      configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
    enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-lib
    modplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrw
    b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge
    r --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --en
    able-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
     --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-
    libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enab
    le-zlib
      libavutil      54. 17.100 / 54. 17.100
      libavcodec     56. 20.100 / 56. 20.100
      libavformat    56. 19.100 / 56. 19.100
      libavdevice    56.  4.100 / 56.  4.100
      libavfilter     5.  8.101 /  5.  8.101
      libswscale      3.  1.101 /  3.  1.101
      libswresample   1.  1.100 /  1.  1.100
      libpostproc    53.  3.100 / 53.  3.100
    Hyper fast Audio and Video encoder
    In the home directory, I added a fonts.conf file for fontconfig, and set up the relevant environment variables:

    Code:
    FC_CONFIG_DIR=C:\Program Files\ffmpeg
    FONTCONFIG_FILE=fonts.conf
    FONTCONFIG_PATH=C:\Program Files\ffmpeg
    Then I took an example fonts.conf file from here:
    http://www.freedesktop.org/software/fontconfig/fontconfig-user.html

    Replacing
    Code:
    <dir>/usr/share/fonts</dir>
    with
    Code:
    <dir>C:\Windows\Fonts</dir>
    for my environment.

    Then I tried the command:

    Code:
    ffmpeg -i {input}.mkv -vf subtitles={input}.srt -codec:v libx264 -codec:a ac3 {output}.mp4
    I get the following fontconfig error:

    Code:
    Fontconfig error: line 22: invalid attribute 'mode'
    Fontconfig error: line 23: invalid attribute 'mode'
    Fontconfig error: line 24: invalid attribute 'mode'
    Fontconfig error: line 80: not well-formed (invalid token)
    Fontconfig error: Cannot load default config file
    [Parsed_subtitles_0 @ 0000000004ee9f20] No usable fontconfig configuratio
    found, using fallback.
    Fontconfig error: line 22: invalid attribute 'mode'
    Fontconfig error: line 23: invalid attribute 'mode'
    Fontconfig error: line 24: invalid attribute 'mode'
    Fontconfig error: line 80: not well-formed (invalid token)
    Fontconfig error: Cannot load default config file
    I don't understand the issues with "invalid attribute" since I'm using an official conf file. Any help appreciated,

    P.
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  2. Member
    Join Date
    Apr 2012
    Location
    Ireland
    Search Comp PM
    Originally Posted by Baldrick View Post
    Thanks the reply - yes I did and in fact tried some of the conf example there, but like people in the thread also got the same "invalid attributes" errors.

    P.
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  3. I had a similar problem (No usable fontconfig configuration found, using fallback.) using a fonts.conf from an "official" site.

    Anyway, using the fonts.conf that comes with DVDStyler solved my problems. Perhaps worth a try. Attached.
    Image Attached Files
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  4. Member
    Join Date
    Apr 2012
    Location
    Ireland
    Search Comp PM
    BRILLIANT. Many many thanks. Just to note for anyone else using it, there's what looks like a freeze/hang just after you run ffmpeg using this, but I presume there's some font-processing occuring - after 30 seconds encoding starts.

    P.
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