[FFmpeg-trac] #2488(undetermined:new): ffmpeg seems not creating standard compliance subtitle streams in MOV files

[FFmpeg]

#2488: ffmpeg seems not creating standard compliance subtitle streams in MOV files
-------------------------------------+-------------------------------------
             Reporter:  Nick         |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  MOV sub srt  |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 During some tests for [https://ffmpeg.org/trac/ffmpeg/ticket/2431
 ticket#2431] I noticed that subtitle streams with special characters in
 MOV files are not displayed correctly in VLC 2.0.6. Therefore I opened a
 ticket in VLC bug tracker ([https://trac.videolan.org/vlc/ticket/8450
 ticket#8450]). [[BR]]
 ''(In other media players like SMPlayer and XBMC it works fine.)''

 My test files are encoded with command line:
 {{{
 ffmpeg -i input.mp4 -sub_charenc ISO-8859-1 -i subtitle_test.srt -map 0:v
 -map 0:a -c copy -map 1 -c:s:0 mov_text -metadata:s:s:0 language=ger
 output_imported_subtitle.mov

 ffmpeg -i input.mp4 -sub_charenc ISO-8859-1 -i subtitle_test.srt -map 0:v
 -map 0:a -c copy -map 1 -c:s:0 mov_text -metadata:s:s:0 language=ger
 output_imported_subtitle.mp4

 }}}
 ...using a Windows build of ffmpeg: [[BR]]
 http://ffmpeg.zeranoe.com/builds/win32/static/ffmpeg-20130418-git-
 ee94362-win32-static.7z

 So far I know, for subtitles in "'''MOV'''" the "'''3GPP Timed Text
 specification'''" should be used!
 See also:
 https://developer.apple.com/library/mac/#documentation/QuickTime/qtff/QTFFChap3/qtff3.html
 http://en.wikipedia.org/wiki/MPEG-4_Part_17
 http://mpeg.chiariglione.org/standards/mpeg-4/streaming-text-format
 3GPP TS 26.245 Specification: [[BR]]
 http://www.3gpp.org/ftp/Specs/archive/26_series/26.245/26245-600.zip

 Another problem for MP4 files was solved with VLC tracker
 [https://trac.videolan.org/vlc/ticket/8450 ticket#8450] but for the
 initial problem with subtitle streams in MOV files I get as answer:
 ''"[...] the file is not encoded correctly. The FFmpeg muxer must be at
 fault here."''
 and
 ''"Your sample is NOT using 3GPP Timed Text."''

 In '''MP4''' files created by ffmpeg I can found the subtitle mark
 "'''tx3g'''" (for "3GPP Timed Text") but in '''MOV''' files I cannot find
 this mark!
 Does ffmpeg using a fully standard compliance format and mark for subtitle
 streams in MOV files?

 [[BR]]
 ''tested also with the last build of VLC:
 http://nightlies.videolan.org/build/win32/vlc-2.1.0-20130420-0005/vlc-2.1.0-git-20130420-0005-win32.zip
 (this build includes MP4 subtitle language code <0x400 detection bugfix
 already)''

 For more details see also:
 https://trac.videolan.org/vlc/ticket/8450

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2488>
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