[FFmpeg-trac] #1778(undetermined:open): EIA-608 / EIA-708 Closed Captions disappear when transcoding/reencoding
FFmpeg
trac at avcodec.org
Tue Oct 2 21:33:54 CEST 2012
#1778: EIA-608 / EIA-708 Closed Captions disappear when transcoding/reencoding
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Reporter: mikecheat04 | Owner:
Type: enhancement | Status: open
Priority: wish | Component:
Version: git-master | undetermined
Keywords: cc | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by reimar):
The situation is not quite as simple.
The problem in this specific case is that it does not have CC data in a
separate stream but embedded in the video frame data.
FFmpeg currently has no way of handling this mess where one stream (video)
contains another one (subtitles/CC).
CC in e.g. wtv, mxf and even mov as in ticket #846 is actually supported
in so far as extracting it is possible, we just can't decode it into plain
text or such and we can't mux it either.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1778#comment:4>
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