OBE RT TODO

Main TODO list for OBE-RT

Input

IP input

• Get rid of (or fix) libavformat and write a new UDP/RTP demuxer and MPEG-TS demuxer that are better suited to hard realtime operations. Lavf has been disabled for the time being.

AES3

• Write SMPTE 337M parser

SDI

• Add new features to libzvbi and parse
  • CEA-2020
  • IEC 61880-1
• Let user set teletext/VBI indentifier
• Support audio description data in SDI - http://downloads.bbc.co.uk/rd/pubs/whp/whp-pdf-files/WHP198.pdf
• Add support for US military formats (MISB STD 0605.3) - http://www.gwg.nga.mil/misb/docs/standards/Standard060503.pdf
• Support SMPTE 2020 audio metadata and associated switching

Speed

• v210 unpack to uyvy speed optimisations
• Make the whole encode chain work with interleaved chroma

Decoding

• Get to a situation where the Dolby E decoder can be used without fear...
• Export User Data from MPEG-2 and AVC streams

Audio Filtering

• Multichannel audio
• Add filter that joins 3x MP2 to one 5.1 stream
• Filter that outputs correct number of samples for uncompressed PAL/NTSC
• Loudness normalisation filter
• Add support for loudness normalisation data in MP2 (mostly written)

Video Filtering

• Optimise hscale in swscale - it's a waste of CPU currently (done, needs merge)
• Add other filters (denoise)
• Optimise and add support for pulldown detection

Encoding

• Make speedcontrol aware of threads in progress
• Add intra masking to reduce keyframe pulsing
• Set AFD default or AFD last known
• Handle AC-3 metadata from VANC or other sources.
• Make AC-3 encoder do dynamic range control
• Make AAC metadata work.
• Add x262.
• Add statmux to x264.
• A lot of things on http://wiki.videolan.org/X264_TODO, most importantly: realtime b-adapt=2, paff etc
• Do vsad on a whole GOP to determine whether the GOP is progressive on a 1080i input and set the correct pic-struct element like BBC HD encoder does.

Mux

• Finish SMPTE 302M muxer (easy)
• Add reconfig to libmpegts
• Add DVB NIT & ATSC etc tables to libmpegts
• Add lowlatency mode to libmpegts (with 302M audio)
• Add PSIP insertion to libmpegts (timing not so problematic)
• Add PES insertion to libmpegts (e.g. DVBSUB - need to check timing too)

Encryption

• Add BISS 0/1/E support

Output

• Add support other types of FEC (LDPC?)

Other

• Match all other features on Harmonic spec sheet
• Handle wraparound for IP input.
• Handle failure to start gracefully
• Testsuite?
• Tidy up CLI (add multiple teletext streams amongst other things)