[FFmpeg-devel] [PATCH v3 0/4] Add passthrough support for SCTE-35

Devin Heitmueller devin.heitmueller at ltnglobal.com
Fri Jul 21 23:37:54 EEST 2023


Properly set up the MPEG-TS mux and recalculate the pts_adjust field
in SCTE_35 packets, such that a user can transparently pass through
SCTE-35 streams when both the input and output are MPEG-TS.

This patch series rebased against master and a patch to hack around
periodic PCR retransmission has been dropped as the behavior is
no longer reproducible in master.

Devin Heitmueller (4):
  avcodec: Add new side data type to contain original PTS value
  mpegts: Stash original PTS for SCTE-35 sections for processing later
  mpegtsenc: Add support for output of SCTE-35 streams over TS
  bsf: Add new bitstream filter to set SCTE-35 pts_adjustment when
    reclocking

 doc/bitstream_filters.texi       |   9 ++++
 libavcodec/Makefile              |   1 +
 libavcodec/bitstream_filters.c   |   1 +
 libavcodec/defs.h                |  12 +++++
 libavcodec/packet.h              |  11 +++++
 libavcodec/scte35ptsadjust_bsf.c | 103 +++++++++++++++++++++++++++++++++++++++
 libavformat/mpegts.c             |  11 ++++-
 libavformat/mpegts.h             |   1 +
 libavformat/mpegtsenc.c          |  76 +++++++++++++++++++++++++++--
 libavformat/mux.c                |   6 ++-
 10 files changed, 224 insertions(+), 7 deletions(-)
 create mode 100644 libavcodec/scte35ptsadjust_bsf.c

-- 
1.8.3.1



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