[FFmpeg-trac] #2431(avcodec:new): Detect if subtitle streams do not contain valid utf-8

[FFmpeg]

#2431: Detect if subtitle streams do not contain valid utf-8
-------------------------------------+-----------------------------------
             Reporter:  Nick         |                    Owner:
                 Type:  enhancement  |                   Status:  new
             Priority:  wish         |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  sub srt      |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Nick):

 Replying to [comment:13 cehoyos]:
 > As you told me in comment:5 (I didn't know before, I had never tested
 it): with -sub_charenc cp1252
 > $ ffmpeg -f lavfi -i testsrc -sub_charenc cp1252 -i subtitle_test.srt
 -vcodec mpeg4 -scodec mov_text -t 60 out.mov

 [[BR]]
 I tested your command line and I try to adapt that for my test files:
 {{{
 ffmpeg -i input.mp4 -sub_charenc cp1252 -i subtitle_test.srt -vcodec copy
 -acodec copy -scodec mov_text output.mp4
 }}}

 In both cases I get following error messages:
 {{{
 C:\Video>ffmpeg -i input.mp4 -sub_charenc cp1252 -i subtitle_test.srt
 -vcodec copy -acodec copy -scodec mov_text output.mp4

 ffmpeg version N-51511-g599866f Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Apr  1 2013 12:44:46 with gcc 4.8.0 (GCC)

 [...]
 [subrip @ 024fc540] Character encoding subtitles conversion needs a
 libavcodec built with iconv support for this codec
 Input #1, srt, from 'subtitle_test.srt':
   Duration: N/A, bitrate: N/A
     Stream #1:0: Subtitle: subrip
 [subrip @ 024fc540] Character encoding subtitles conversion needs a
 libavcodec built with iconv support for this codec

 [...]
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (copy)
   Stream #1:0 -> #0:2 (subrip -> mov_text)
 Error while opening decoder for input stream #1:0
 }}}

 The same happens if I try to import an ASS subtitle file, like:
 ''ffmpeg -i input.mp4 -sub_charenc cp1252 -i subtitle_test.ass -vcodec
 copy -acodec copy -scodec mov_text output.mp4''

 "'''Character encoding subtitles conversion needs a libavcodec built with
 iconv support for this codec'''" (?) -->
 Where I can found a Windows build of ffmpeg.exe built with iconv support
 for srt/ass?

 Would be the activation of the "iconv support" for SRT and ASS subtitle
 streams/files as default already the solution of my problem? This sounds
 like a pratical solution!

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2431#comment:14>
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