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| author | Hendrik Leppkes <h.leppkes@gmail.com> | 2011-02-20 02:38:23 +0100 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2011-03-07 14:44:29 -0500 |
| commit | 789936dbbda60990220b80769ed75702775ea0b2 (patch) | |
| tree | 4babb7cc095eb65cac5366710cd5b687052436fe | |
| parent | 435cebd01560691e9322bdb0aa5af5b2bc76c3f8 (diff) | |
| download | ffmpeg-789936dbbda60990220b80769ed75702775ea0b2.tar.gz | |
Flag DVB subtitles for the hard hearing appropriately using their component_type id.
This is based on the component_type definition in the DVB SI spec [1].
[1]: http://www.dvb.org/technology/standards/a038_DVB-SI_dEN300468v1.12.1.pdf
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
| -rw-r--r-- | libavformat/mpegts.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c index 2b55de9e46..600ef534f5 100644 --- a/libavformat/mpegts.c +++ b/libavformat/mpegts.c @@ -935,7 +935,17 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type language[1] = get8(pp, desc_end); language[2] = get8(pp, desc_end); language[3] = 0; - get8(pp, desc_end); + /* hearing impaired subtitles detection */ + switch(get8(pp, desc_end)) { + case 0x20: /* DVB subtitles (for the hard of hearing) with no monitor aspect ratio criticality */ + case 0x21: /* DVB subtitles (for the hard of hearing) for display on 4:3 aspect ratio monitor */ + case 0x22: /* DVB subtitles (for the hard of hearing) for display on 16:9 aspect ratio monitor */ + case 0x23: /* DVB subtitles (for the hard of hearing) for display on 2.21:1 aspect ratio monitor */ + case 0x24: /* DVB subtitles (for the hard of hearing) for display on a high definition monitor */ + case 0x25: /* DVB subtitles (for the hard of hearing) with plano-stereoscopic disparity for display on a high definition monitor */ + st->disposition |= AV_DISPOSITION_HEARING_IMPAIRED; + break; + } if (st->codec->extradata) { if (st->codec->extradata_size == 4 && memcmp(st->codec->extradata, *pp, 4)) av_log_ask_for_sample(fc, "DVB sub with multiple IDs\n"); |