From: "Jan Ekström" <jeebjp@gmail.com>
To: ffmpeg-devel@ffmpeg.org
Subject: [FFmpeg-devel] [PATCH 0/2] Initial support for fragmented TTML muxing
Date: Fri, 23 Dec 2022 14:51:55 +0200
Message-ID: <20221223125157.83340-1-jeebjp@gmail.com> (raw)
This enables pushing TTML together with another track (usually video)
as part of CMAF Ingest, as defined by the DASH-IF Live Media Ingest
Protocol.
Currently does not function well with just the subtitle track unless
the API user explicitly requests fragmentation with a nullptr packet,
as the generic fragmentation decision logic is based on tracks which
do not require squashing.
Currently does support overlapping subtitles, but the implementation
utilizes another packet queue for it, which is probably not optimal.
Recommendations on how to improve things are welcome.
Jan Ekström (2):
avcodec/avpacket: add functionality to prepend to AVPacketLists
avformat/movenc: add support for fragmented TTML muxing
libavcodec/avpacket.c | 20 +++--
libavcodec/packet_internal.h | 2 +
libavformat/movenc.c | 9 --
libavformat/movenc_ttml.c | 163 ++++++++++++++++++++++++++++++++++-
4 files changed, 176 insertions(+), 18 deletions(-)
--
2.38.1
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next reply other threads:[~2022-12-23 12:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-23 12:51 Jan Ekström [this message]
2022-12-23 12:51 ` [FFmpeg-devel] [PATCH 1/2] avcodec/avpacket: add functionality to prepend to AVPacketLists Jan Ekström
2022-12-23 12:51 ` [FFmpeg-devel] [PATCH 2/2] avformat/movenc: add support for fragmented TTML muxing Jan Ekström
2022-12-23 14:41 ` Andreas Rheinhardt
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