[FFmpeg-trac] #4465(avfilter:new): video filter ass does not load embedded font files

[FFmpeg]

#4465: video filter ass does not load embedded font files
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               Reporter:  cehoyos     |                  Owner:
                   Type:  defect      |                 Status:  new
               Priority:  normal      |              Component:  avfilter
                Version:  git-master  |               Keywords:  ass
             Blocked By:              |               Blocking:
Reproduced by developer:  0           |  Analyzed by developer:  0
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 (vlc ticket 13701)
 I will attach an ass file that contains an embedded font with a logo.
 {{{mplayer -ass}}} shows the logo in the initial subtitles, FFmpeg does
 not.
 {{{
 $ ffmpeg -f lavfi -i color=d=20 -vf ass=test.ass -qscale 2 out.avi
 ffmpeg version N-71346-gdf4fca2 Copyright (c) 2000-2015 the FFmpeg
 developers
   built with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl --enable-libzvbi --enable-libass
   libavutil      54. 22.101 / 54. 22.101
   libavcodec     56. 34.100 / 56. 34.100
   libavformat    56. 30.100 / 56. 30.100
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 13.101 /  5. 13.101
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
 Input #0, lavfi, from 'color=d=20':
   Duration: N/A, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240
 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
 Please use -q:a or -q:v, -qscale is ambiguous
 [Parsed_ass_0 @ 0x259cb20] Added subtitle file: 'test.ass' (41 styles, 600
 events)
 Output #0, avi, to 'out.avi':
   Metadata:
     ISFT            : Lavf56.30.100
     Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 320x240 [SAR
 1:1 DAR 4:3], q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc
     Metadata:
       encoder         : Lavc56.34.100 mpeg4
 Stream mapping:
   Stream #0:0 -> #0:0 (rawvideo (native) -> mpeg4 (native))
 Press [q] to stop, [?] for help
 [Parsed_ass_0 @ 0x259cb20] fontconfig: Selected font is not the requested
 one: 'DejaVu Sans' != 'Hacen Promoter Md'
 [Parsed_ass_0 @ 0x259cb20] fontconfig: Selected font is not the requested
 one: 'DejaVu Sans' != 'Kristen ITC'
 [Parsed_ass_0 @ 0x259cb20] fontconfig: Selected font is not the requested
 one: 'DejaVu Sans' != 'Hacen Tehran'
 frame=  500 fps=0.0 q=2.0 Lsize=     684kB time=00:00:20.00 bitrate=
 280.2kbits/s
 video:667kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 2.640011%
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/4465>
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