>From ETSI EN 300 472 V1.3.1 (2003-05) Specification for conveying ITU-R System
>B Teletext in DVB bitstreams:
4.1 Transport Stream (TS) packet format
The standard TS packet syntax and semantics are followed, noting the following
constraint:
- adaptation_field_control only the values "01" and "10" are permitted.
Some set top boxes (Motorola, Arris, Zyxel) refuse non-conforming packets.
Signed-off-by: Alex Shumsky <alexthr...@gmail.com>
---
libavformat/mpegtsenc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c
index 184bb52f75..3d630e2500 100644
--- a/libavformat/mpegtsenc.c
+++ b/libavformat/mpegtsenc.c
@@ -1564,7 +1564,8 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream
*st,
q = get_ts_payload_start(buf);
ts_st->discontinuity = 0;
}
- if (key && is_start && pts != AV_NOPTS_VALUE) {
+ if (key && is_start && pts != AV_NOPTS_VALUE
+ && !is_dvb_teletext /* adaptation+payload forbidden for teletext
(ETSI EN 300 472 V1.3.1 4.1) */ ) {
// set Random Access for key frames
if (ts_st->pcr_period)
write_pcr = 1;
--
2.25.1
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