On Tue, Apr 24, 2018 at 07:07:58PM -0700, Aman Gupta wrote: > From: Aman Gupta <a...@tmm1.net> > > Based largely on VLC's modules/codec/telx.c. > > Processes only teletext pages marked as subtitles, so depending > on the stream it might not produce any output. > > Subtitles are rendered directly to ASS, with support for background > colors and a best-effort at screen positioning. The ASS packets > are emitted in real time (similar to ccaption_dec's real_time > option), with -1 durations. The decoder expects that the player > will remove all existing subtitles whenever a new packet arrives. > > The teletext clear command is implemented using an empty subtitle, > which removes existing subtitles but does not render anything new. > --- > libavcodec/Makefile | 1 + > libavcodec/allcodecs.c | 1 + > libavcodec/teletextsubdec.c | 522 > ++++++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 524 insertions(+) > create mode 100644 libavcodec/teletextsubdec.c
this produces some warnings: libavcodec/teletextsubdec.c: In function ‘teletext_decode_frame’: libavcodec/teletextsubdec.c:439:77: warning: variable ‘f_news’ set but not used [-Wunused-but-set-variable] libavcodec/teletextsubdec.c:439:67: warning: variable ‘f_update’ set but not used [-Wunused-but-set-variable] libavcodec/teletextsubdec.c:439:55: warning: variable ‘f_suppress’ set but not used [-Wunused-but-set-variable] libavcodec/teletextsubdec.c:439:44: warning: variable ‘f_inhibit’ set but not used [-Wunused-but-set-variable] libavcodec/teletextsubdec.c:438:24: warning: variable ‘page’ set but not used [-Wunused-but-set-variable] [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB The bravest are surely those who have the clearest vision of what is before them, glory and danger alike, and yet notwithstanding go out to meet it. -- Thucydides
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